Merge tag 'soc-drivers-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
"Nothing surprising in the SoC specific drivers, with the usual
updates:

- Added or improved SoC driver support for Tegra234, Exynos4121,
RK3588, as well as multiple Mediatek and Qualcomm chips

- SCMI firmware gains support for multiple SMC/HVC transport and
version 3.2 of the protocol

- Cleanups amd minor changes for the reset controller, memory
controller, firmware and sram drivers

- Minor changes to amd/xilinx, samsung, tegra, nxp, ti, qualcomm,
amlogic and renesas SoC specific drivers"

* tag 'soc-drivers-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (118 commits)
dt-bindings: interrupt-controller: Convert Amlogic Meson GPIO interrupt controller binding
MAINTAINERS: add PHY-related files to Amlogic SoC file list
drivers: meson: secure-pwrc: always enable DMA domain
tee: optee: Use kmemdup() to replace kmalloc + memcpy
soc: qcom: geni-se: Do not bother about enable/disable of interrupts in secondary sequencer
dt-bindings: sram: qcom,imem: document qdu1000
soc: qcom: icc-bwmon: Fix MSM8998 count unit
dt-bindings: soc: qcom,rpmh-rsc: Require power-domains
soc: qcom: socinfo: Add Soc ID for IPQ5300
dt-bindings: arm: qcom,ids: add SoC ID for IPQ5300
soc: qcom: Fix a IS_ERR() vs NULL bug in probe
soc: qcom: socinfo: Add support for new fields in revision 19
soc: qcom: socinfo: Add support for new fields in revision 18
dt-bindings: firmware: scm: Add compatible for SDX75
soc: qcom: mdt_loader: Fix split image detection
dt-bindings: memory-controllers: drop unneeded quotes
soc: rockchip: dtpm: use C99 array init syntax
firmware: tegra: bpmp: Add support for DRAM MRQ GSCs
soc/tegra: pmc: Use devm_clk_notifier_register()
soc/tegra: pmc: Simplify debugfs initialization
...

Documentation/devicetree/bindings/firmware/arm,scmi.yaml

···
       - description: SCMI compliant firmware with ARM SMC/HVC transport
         items:
           - const: arm,scmi-smc
+      - description: SCMI compliant firmware with ARM SMC/HVC transport
+                     with shmem address(4KB-page, offset) as parameters
+        items:
+          - const: arm,scmi-smc-param
       - description: SCMI compliant firmware with SCMI Virtio transport.
                      The virtio transport only supports a single device.
         items:
···
     properties:
       compatible:
         contains:
-          const: arm,scmi-smc
+          enum:
+            - arm,scmi-smc
+            - arm,scmi-smc-param
   then:
     required:
       - arm,smc-id

Documentation/devicetree/bindings/firmware/qcom,scm.yaml

···
           - qcom,scm-sdm845
           - qcom,scm-sdx55
           - qcom,scm-sdx65
+          - qcom,scm-sdx75
           - qcom,scm-sm6115
           - qcom,scm-sm6125
           - qcom,scm-sm6350

Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt

···
-Amlogic meson GPIO interrupt controller
-
-Meson SoCs contains an interrupt controller which is able to watch the SoC
-pads and generate an interrupt on edge or level. The controller is essentially
-a 256 pads to 8 GIC interrupt multiplexer, with a filter block to select edge
-or level and polarity. It does not expose all 256 mux inputs because the
-documentation shows that the upper part is not mapped to any pad. The actual
-number of interrupt exposed depends on the SoC.
-
-Required properties:
-
-- compatible : must have "amlogic,meson8-gpio-intc" and either
-    "amlogic,meson8-gpio-intc" for meson8 SoCs (S802) or
-    "amlogic,meson8b-gpio-intc" for meson8b SoCs (S805) or
-    "amlogic,meson-gxbb-gpio-intc" for GXBB SoCs (S905) or
-    "amlogic,meson-gxl-gpio-intc" for GXL SoCs (S905X, S912)
-    "amlogic,meson-axg-gpio-intc" for AXG SoCs (A113D, A113X)
-    "amlogic,meson-g12a-gpio-intc" for G12A SoCs (S905D2, S905X2, S905Y2)
-    "amlogic,meson-sm1-gpio-intc" for SM1 SoCs (S905D3, S905X3, S905Y3)
-    "amlogic,meson-a1-gpio-intc" for A1 SoCs (A113L)
-    "amlogic,meson-s4-gpio-intc" for S4 SoCs (S802X2, S905Y4, S805X2G, S905W2)
-- reg : Specifies base physical address and size of the registers.
-- interrupt-controller : Identifies the node as an interrupt controller.
-- #interrupt-cells : Specifies the number of cells needed to encode an
-   interrupt source. The value must be 2.
-- meson,channel-interrupts: Array with the 8 upstream hwirq numbers. These
-   are the hwirqs used on the parent interrupt controller.
-
-Example:
-
-gpio_interrupt: interrupt-controller@9880 {
-	compatible = "amlogic,meson-gxbb-gpio-intc",
-		     "amlogic,meson-gpio-intc";
-	reg = <0x0 0x9880 0x0 0x10>;
-	interrupt-controller;
-	#interrupt-cells = <2>;
-	meson,channel-interrupts = <64 65 66 67 68 69 70 71>;
-};

Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/amlogic,meson-gpio-intc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Meson GPIO interrupt controller
+
+maintainers:
+  - Heiner Kallweit <[e-mail]>
+
+description: |
+  Meson SoCs contains an interrupt controller which is able to watch the SoC
+  pads and generate an interrupt on edge or level. The controller is essentially
+  a 256 pads to 8 or 12 GIC interrupt multiplexer, with a filter block to select
+  edge or level and polarity. It does not expose all 256 mux inputs because the
+  documentation shows that the upper part is not mapped to any pad. The actual
+  number of interrupts exposed depends on the SoC.
+
+allOf:
+  - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: amlogic,meson-gpio-intc
+      - items:
+          - enum:
+              - amlogic,meson8-gpio-intc
+              - amlogic,meson8b-gpio-intc
+              - amlogic,meson-gxbb-gpio-intc
+              - amlogic,meson-gxl-gpio-intc
+              - amlogic,meson-axg-gpio-intc
+              - amlogic,meson-g12a-gpio-intc
+              - amlogic,meson-sm1-gpio-intc
+              - amlogic,meson-a1-gpio-intc
+              - amlogic,meson-s4-gpio-intc
+          - const: amlogic,meson-gpio-intc
+
+  reg:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 2
+
+  amlogic,channel-interrupts:
+    description: Array with the upstream hwirq numbers
+    minItems: 8
+    maxItems: 12
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+required:
+  - compatible
+  - reg
+  - interrupt-controller
+  - "#interrupt-cells"
+  - amlogic,channel-interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    interrupt-controller@9880 {
+      compatible = "amlogic,meson-gxbb-gpio-intc",
+                   "amlogic,meson-gpio-intc";
+      reg = <0x9880 0x10>;
+      interrupt-controller;
+      #interrupt-cells = <2>;
+      amlogic,channel-interrupts = <64 65 66 67 68 69 70 71>;
+    };

Documentation/devicetree/bindings/media/s5p-mfc.txt

···
-* Samsung Multi Format Codec (MFC)
-
-Multi Format Codec (MFC) is the IP present in Samsung SoCs which
-supports high resolution decoding and encoding functionalities.
-The MFC device driver is a v4l2 driver which can encode/decode
-video raw/elementary streams and has support for all popular
-video codecs.
-
-Required properties:
-  - compatible : value should be either one among the following
-	(a) "samsung,mfc-v5" for MFC v5 present in Exynos4 SoCs
-	(b) "samsung,mfc-v6" for MFC v6 present in Exynos5 SoCs
-	(c) "samsung,exynos3250-mfc", "samsung,mfc-v7" for MFC v7
-	     present in Exynos3250 SoC
-	(d) "samsung,mfc-v7" for MFC v7 present in Exynos5420 SoC
-	(e) "samsung,mfc-v8" for MFC v8 present in Exynos5800 SoC
-	(f) "samsung,exynos5433-mfc" for MFC v8 present in Exynos5433 SoC
-	(g) "samsung,mfc-v10" for MFC v10 present in Exynos7880 SoC
-
-  - reg : Physical base address of the IP registers and length of memory
-	  mapped region.
-
-  - interrupts : MFC interrupt number to the CPU.
-  - clocks : from common clock binding: handle to mfc clock.
-  - clock-names : from common clock binding: must contain "mfc",
-		  corresponding to entry in the clocks property.
-
-Optional properties:
-  - power-domains : power-domain property defined with a phandle
-			   to respective power domain.
-  - memory-region : from reserved memory binding: phandles to two reserved
-	memory regions, first is for "left" mfc memory bus interfaces,
-	second if for the "right" mfc memory bus, used when no SYSMMU
-	support is available; used only by MFC v5 present in Exynos4 SoCs
-
-Obsolete properties:
-  - samsung,mfc-r, samsung,mfc-l : support removed, please use memory-region
-	property instead
-
-
-Example:
-SoC specific DT entry:
-
-mfc: codec@13400000 {
-	compatible = "samsung,mfc-v5";
-	reg = <0x13400000 0x10000>;
-	interrupts = <0 94 0>;
-	power-domains = <&pd_mfc>;
-	clocks = <&clock 273>;
-	clock-names = "mfc";
-};
-
-Reserved memory specific DT entry for given board (see reserved memory binding
-for more information):
-
-reserved-memory {
-	#address-cells = <1>;
-	#size-cells = <1>;
-	ranges;
-
-	mfc_left: region@51000000 {
-		compatible = "shared-dma-pool";
-		no-map;
-		reg = <0x51000000 0x800000>;
-	};
-
-	mfc_right: region@43000000 {
-		compatible = "shared-dma-pool";
-		no-map;
-		reg = <0x43000000 0x800000>;
-	};
-};
-
-Board specific DT entry:
-
-codec@13400000 {
-	memory-region = <&mfc_left>, <&mfc_right>;
-};

Documentation/devicetree/bindings/media/samsung,s5p-mfc.yaml

···
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/samsung,s5p-mfc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos Multi Format Codec (MFC)
+
+maintainers:
+  - Marek Szyprowski <[e-mail]>
+  - Aakarsh Jain <[e-mail]>
+
+description:
+  Multi Format Codec (MFC) is the IP present in Samsung SoCs which
+  supports high resolution decoding and encoding functionalities.
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - samsung,exynos5433-mfc        # Exynos5433
+          - samsung,mfc-v5                # Exynos4
+          - samsung,mfc-v6                # Exynos5
+          - samsung,mfc-v7                # Exynos5420
+          - samsung,mfc-v8                # Exynos5800
+          - samsung,mfc-v10               # Exynos7880
+      - items:
+          - enum:
+              - samsung,exynos3250-mfc    # Exynos3250
+          - const: samsung,mfc-v7         # Fall back for Exynos3250
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 3
+
+  clock-names:
+    minItems: 1
+    maxItems: 3
+
+  interrupts:
+    maxItems: 1
+
+  iommus:
+    minItems: 1
+    maxItems: 2
+
+  iommu-names:
+    minItems: 1
+    maxItems: 2
+
+  power-domains:
+    maxItems: 1
+
+  memory-region:
+    minItems: 1
+    maxItems: 2
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+additionalProperties: false
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - samsung,exynos3250-mfc
+    then:
+      properties:
+        clocks:
+          maxItems: 2
+        clock-names:
+          items:
+            - const: mfc
+            - const: sclk_mfc
+        iommus:
+          maxItems: 1
+        iommus-names: false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - samsung,exynos5433-mfc
+    then:
+      properties:
+        clocks:
+          maxItems: 3
+        clock-names:
+          items:
+            - const: pclk
+            - const: aclk
+            - const: aclk_xiu
+        iommus:
+          maxItems: 2
+        iommus-names:
+          items:
+            - const: left
+            - const: right
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - samsung,mfc-v5
+    then:
+      properties:
+        clocks:
+          maxItems: 2
+        clock-names:
+          items:
+            - const: mfc
+            - const: sclk_mfc
+        iommus:
+          maxItems: 2
+        iommus-names:
+          items:
+            - const: left
+            - const: right
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - samsung,mfc-v6
+              - samsung,mfc-v8
+    then:
+      properties:
+        clocks:
+          maxItems: 1
+        clock-names:
+          items:
+            - const: mfc
+        iommus:
+          maxItems: 2
+        iommus-names:
+          items:
+            - const: left
+            - const: right
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - samsung,mfc-v7
+    then:
+      properties:
+        clocks:
+          minItems: 1
+          maxItems: 2
+        iommus:
+          minItems: 1
+          maxItems: 2
+
+examples:
+  - |
+    #include <dt-bindings/clock/exynos4.h>
+    #include <dt-bindings/clock/exynos-audss-clk.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    codec@13400000 {
+        compatible = "samsung,mfc-v5";
+        reg = <0x13400000 0x10000>;
+        interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
+        power-domains = <&pd_mfc>;
+        clocks = <&clock CLK_MFC>, <&clock CLK_SCLK_MFC>;
+        clock-names = "mfc", "sclk_mfc";
+        iommus = <&sysmmu_mfc_l>, <&sysmmu_mfc_r>;
+        iommu-names = "left", "right";
+    };

Documentation/devicetree/bindings/memory-controllers/nvidia,tegra20-emc.yaml

···
         const: 0
 
       lpddr2:
-        $ref: "ddr/jedec,lpddr2.yaml#"
+        $ref: ddr/jedec,lpddr2.yaml#
         type: object
 
     patternProperties:

Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml

···
       The child device node represents the device connected to the GPMC
       bus. The device can be a NAND chip, SRAM device, NOR device
       or an ASIC.
-    $ref: "ti,gpmc-child.yaml"
+    $ref: ti,gpmc-child.yaml
 
 
 required:

Documentation/devicetree/bindings/phy/mediatek,dsi-phy.yaml

···
           - const: mediatek,mt2701-mipi-tx
       - items:
           - enum:
+              - mediatek,mt6795-mipi-tx
+          - const: mediatek,mt8173-mipi-tx
+      - items:
+          - enum:
               - mediatek,mt8365-mipi-tx
           - const: mediatek,mt8183-mipi-tx
       - const: mediatek,mt2701-mipi-tx

Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml

···
           - mediatek,mt8173-disp-pwm
           - mediatek,mt8183-disp-pwm
       - items:
-          - const: mediatek,mt8167-disp-pwm
+          - enum:
+              - mediatek,mt6795-disp-pwm
+              - mediatek,mt8167-disp-pwm
           - const: mediatek,mt8173-disp-pwm
       - items:
           - enum:

Documentation/devicetree/bindings/reset/oxnas,reset.txt

···
-Oxford Semiconductor OXNAS SoC Family RESET Controller
-================================================
-
-Please also refer to reset.txt in this directory for common reset
-controller binding usage.
-
-Required properties:
-- compatible: For OX810SE, should be "oxsemi,ox810se-reset"
-	      For OX820, should be "oxsemi,ox820-reset"
-- #reset-cells: 1, see below
-
-Parent node should have the following properties :
-- compatible: For OX810SE, should be :
-			"oxsemi,ox810se-sys-ctrl", "syscon", "simple-mfd"
-	      For OX820, should be :
-			"oxsemi,ox820-sys-ctrl", "syscon", "simple-mfd"
-
-Reset indices are in dt-bindings include files :
-- For OX810SE: include/dt-bindings/reset/oxsemi,ox810se.h
-- For OX820: include/dt-bindings/reset/oxsemi,ox820.h
-
-example:
-
-sys: sys-ctrl@000000 {
-	compatible = "oxsemi,ox810se-sys-ctrl", "syscon", "simple-mfd";
-	reg = <0x000000 0x100000>;
-
-	reset: reset-controller {
-		compatible = "oxsemi,ox810se-reset";
-		#reset-cells = <1>;
-	};
-};

Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml

···
               - mediatek,mt2701-pwrap
               - mediatek,mt6765-pwrap
               - mediatek,mt6779-pwrap
+              - mediatek,mt6795-pwrap
               - mediatek,mt6797-pwrap
               - mediatek,mt6873-pwrap
               - mediatek,mt7622-pwrap

Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml

···
     items:
       - enum:
           - qcom,qdu1000-aoss-qmp
+          - qcom,sa8775p-aoss-qmp
           - qcom,sc7180-aoss-qmp
           - qcom,sc7280-aoss-qmp
           - qcom,sc8180x-aoss-qmp

Documentation/devicetree/bindings/soc/qcom/qcom,eud.yaml

···
 examples:
   - |
     eud@88e0000 {
-           compatible = "qcom,sc7280-eud","qcom,eud";
+           compatible = "qcom,sc7280-eud", "qcom,eud";
            reg = <0x88e0000 0x2000>,
                  <0x88e2000 0x1000>;
+
            ports {
                    #address-cells = <1>;
                    #size-cells = <0>;
···
                                    remote-endpoint = <&usb2_role_switch>;
                            };
                    };
+
                    port@1 {
                            reg = <1>;
                            eud_con: endpoint {

Documentation/devicetree/bindings/soc/qcom/qcom,rpm-master-stats.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/qcom/qcom,rpm-master-stats.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. (QTI) RPM Master Stats
+
+maintainers:
+  - Konrad Dybcio <[e-mail]>
+
+description: |
+  The Qualcomm RPM (Resource Power Manager) architecture includes a concept
+  of "RPM Masters". They can be thought of as "the local gang leaders", usually
+  spanning a single subsystem (e.g. APSS, ADSP, CDSP). All of the RPM decisions
+  (particularly around entering hardware-driven low power modes: XO shutdown
+  and total system-wide power collapse) are first made at Master-level, and
+  only then aggregated for the entire system.
+
+  The Master Stats provide a few useful bits that can be used to assess whether
+  our device has entered the desired low-power mode, how long it took to do so,
+  the duration of that residence, how long it took to come back online,
+  how many times a given sleep state was entered and which cores are actively
+  voting for staying awake.
+
+  This scheme has been used on various SoCs in the 2013-2023 era, with some
+  newer or higher-end designs providing this information through an SMEM query.
+
+properties:
+  compatible:
+    const: qcom,rpm-master-stats
+
+  qcom,rpm-msg-ram:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: Phandle to an RPM MSG RAM slice containing the master stats
+    minItems: 1
+    maxItems: 5
+
+  qcom,master-names:
+    $ref: /schemas/types.yaml#/definitions/string-array
+    description:
+      The name of the RPM Master which owns the MSG RAM slice where this
+      instance of Master Stats resides
+    minItems: 1
+    maxItems: 5
+
+required:
+  - compatible
+  - qcom,rpm-msg-ram
+  - qcom,master-names
+
+additionalProperties: false
+
+examples:
+  - |
+    stats {
+      compatible = "qcom,rpm-master-stats";
+      qcom,rpm-msg-ram = <&apss_master_stats>,
+                         <&mpss_master_stats>,
+                         <&adsp_master_stats>,
+                         <&cdsp_master_stats>,
+                         <&tz_master_stats>;
+      qcom,master-names = "APSS",
+                          "MPSS",
+                          "ADSP",
+                          "CDSP",
+                          "TZ";
+    };
+...

Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml

···
   - qcom,tcs-offset
   - reg
   - reg-names
+  - power-domains
 
 additionalProperties: false
 
···
                           <SLEEP_TCS   1>,
                           <WAKE_TCS    1>,
                           <CONTROL_TCS 0>;
+        power-domains = <&CLUSTER_PD>;
     };
 
   - |

Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.yaml

···
       contains:
         enum:
           - qcom,rpm-apq8084
+          - qcom,rpm-msm8226
           - qcom,rpm-msm8916
           - qcom,rpm-msm8936
           - qcom,rpm-msm8974

Documentation/devicetree/bindings/soc/rockchip/grf.yaml

···
               - rockchip,rk3588-bigcore1-grf
               - rockchip,rk3588-ioc
               - rockchip,rk3588-php-grf
+              - rockchip,rk3588-pipe-phy-grf
               - rockchip,rk3588-sys-grf
               - rockchip,rk3588-pcie3-phy-grf
               - rockchip,rk3588-pcie3-pipe-grf
···
               - rockchip,rk3399-pmugrf
               - rockchip,rk3568-grf
               - rockchip,rk3568-pmugrf
+              - rockchip,rk3588-usb2phy-grf
               - rockchip,rv1108-grf
               - rockchip,rv1108-pmugrf
               - rockchip,rv1126-grf
···
               - rockchip,rk3308-usb2phy-grf
               - rockchip,rk3328-usb2phy-grf
               - rockchip,rk3399-grf
+              - rockchip,rk3588-usb2phy-grf
               - rockchip,rv1108-grf
 
     then:

Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml

···
         enum:
           - samsung,exynos3250-pmu
           - samsung,exynos4210-pmu
+          - samsung,exynos4212-pmu
           - samsung,exynos4412-pmu
           - samsung,exynos5250-pmu
           - samsung,exynos5260-pmu
···
           - enum:
               - samsung,exynos3250-pmu
               - samsung,exynos4210-pmu
+              - samsung,exynos4212-pmu
               - samsung,exynos4412-pmu
               - samsung,exynos5250-pmu
               - samsung,exynos5260-pmu
···
           - enum:
               - samsung,exynos3250-pmu
               - samsung,exynos4210-pmu
+              - samsung,exynos4212-pmu
               - samsung,exynos4412-pmu
               - samsung,exynos5250-pmu
               - samsung,exynos5420-pmu
···
             enum:
               - samsung,exynos3250-pmu
               - samsung,exynos4210-pmu
+              - samsung,exynos4212-pmu
               - samsung,exynos4412-pmu
               - samsung,exynos5250-pmu
               - samsung,exynos5410-pmu
···
             enum:
               - samsung,exynos3250-pmu
               - samsung,exynos4210-pmu
+              - samsung,exynos4212-pmu
               - samsung,exynos4412-pmu
               - samsung,exynos5250-pmu
               - samsung,exynos5420-pmu

Documentation/devicetree/bindings/spmi/mtk,spmi-mtk-pmif.yaml

···
 
 properties:
   compatible:
-    enum:
-      - mediatek,mt6873-spmi
-      - mediatek,mt8195-spmi
+    oneOf:
+      - enum:
+          - mediatek,mt6873-spmi
+          - mediatek,mt8195-spmi
+      - items:
+          - enum:
+              - mediatek,mt8186-spmi
+          - const: mediatek,mt8195-spmi
 
   reg:
     maxItems: 2

Documentation/devicetree/bindings/sram/qcom,imem.yaml

···
     items:
       - enum:
           - qcom,apq8064-imem
+          - qcom,msm8226-imem
           - qcom,msm8974-imem
           - qcom,qcs404-imem
+          - qcom,qdu1000-imem
           - qcom,sc7180-imem
           - qcom,sc7280-imem
           - qcom,sdm630-imem

Documentation/devicetree/bindings/sram/sram.yaml

···
             - samsung,exynos4210-sysram
             - samsung,exynos4210-sysram-ns
             - socionext,milbeaut-smp-sram
+            - stericsson,u8500-esram
 
       reg:
         description:

MAINTAINERS

···
 L:	[e-mail]
 S:	Maintained
 W:	http://linux-meson.com/
+F:	Documentation/devicetree/bindings/phy/amlogic*
 F:	arch/arm/boot/dts/amlogic/
 F:	arch/arm/mach-meson/
 F:	arch/arm64/boot/dts/amlogic/
 F:	drivers/mmc/host/meson*
+F:	drivers/phy/amlogic/
 F:	drivers/pinctrl/meson/
 F:	drivers/rtc/rtc-meson*
 F:	drivers/soc/amlogic/
···
 ARM/QUALCOMM SUPPORT
 M:	Andy Gross <[e-mail]>
 M:	Bjorn Andersson <[e-mail]>
-R:	Konrad Dybcio <[e-mail]>
+M:	Konrad Dybcio <[e-mail]>
 L:	[e-mail]
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux.git
···
 F:	drivers/gpu/drm/xen/
 
 DRM DRIVERS FOR XILINX
-M:	Hyun Kwon <[e-mail]>
 M:	Laurent Pinchart <[e-mail]>
 L:	[e-mail]
 S:	Maintained
···
 F:	drivers/iio/adc/xilinx-ams.c
 
 XILINX AXI ETHERNET DRIVER
-M:	Radhey Shyam Pandey <[e-mail]>
+M:	Radhey Shyam Pandey <[e-mail]>
 S:	Maintained
 F:	Documentation/devicetree/bindings/net/xlnx,axi-ethernet.yaml
 F:	drivers/net/ethernet/xilinx/xilinx_axienet*
···
 F:	include/linux/firmware/xlnx-event-manager.h
 
 XILINX GPIO DRIVER
-M:	Shubhrajyoti Datta <[e-mail]>
-R:	Srinivas Neeli <[e-mail]>
+M:	Shubhrajyoti Datta <[e-mail]>
+R:	Srinivas Neeli <[e-mail]>
 R:	Michal Simek <[e-mail]>
 S:	Maintained
 F:	Documentation/devicetree/bindings/gpio/gpio-zynq.yaml
···
 F:	include/clocksource/timer-xilinx.h
 
 XILINX SD-FEC IP CORES
-M:	Derek Kiernan <[e-mail]>
-M:	Dragan Cvetic <[e-mail]>
+M:	Derek Kiernan <[e-mail]>
+M:	Dragan Cvetic <[e-mail]>
 S:	Maintained
 F:	Documentation/devicetree/bindings/misc/xlnx,sd-fec.txt
 F:	Documentation/misc-devices/xilinx_sdfec.rst
···
 F:	drivers/tty/serial/uartlite.c
 
 XILINX VIDEO IP CORES
-M:	Hyun Kwon <[e-mail]>
 M:	Laurent Pinchart <[e-mail]>
 L:	[e-mail]
 S:	Supported
···
 F:	include/linux/platform_data/amd_xdma.h
 
 XILINX ZYNQMP DPDMA DRIVER
-M:	Hyun Kwon <[e-mail]>
 M:	Laurent Pinchart <[e-mail]>
 L:	[e-mail]
 S:	Supported
···
 F:	drivers/edac/zynqmp_edac.c
 
 XILINX ZYNQMP PSGTR PHY DRIVER
-M:	Anurag Kumar Vulisha <[e-mail]>
 M:	Laurent Pinchart <[e-mail]>
 L:	[e-mail]
 S:	Supported
···
 F:	drivers/phy/xilinx/phy-zynqmp.c
 
 XILINX ZYNQMP SHA3 DRIVER
-M:	Harsha <[e-mail]>
+M:	Harsha <[e-mail]>
 S:	Maintained
 F:	drivers/crypto/xilinx/zynqmp-sha.c
 

arch/arm/mach-at91/Kconfig

···
 	depends on ARCH_MULTI_V5
 	select ATMEL_AIC_IRQ
 	select ATMEL_PM if PM
-	select ATMEL_SDRAMC
 	select CPU_ARM926T
 	select HAVE_AT91_SMD
 	select HAVE_AT91_USB_CLK
···
 	depends on ARCH_MULTI_V5
 	select ATMEL_AIC5_IRQ
 	select ATMEL_PM if PM
-	select ATMEL_SDRAMC
 	select CPU_ARM926T
 	select HAVE_AT91_USB_CLK
 	select HAVE_AT91_GENERATED_CLK
···
 	bool
 	select ATMEL_AIC5_IRQ
 	select ATMEL_PM if PM
-	select ATMEL_SDRAMC
 	select MEMORY
 	select SOC_SAM_V7
 	select SRAM if PM
···
 	bool
 	select ARM_GIC
 	select ATMEL_PM if PM
-	select ATMEL_SDRAMC
 	select MEMORY
 	select SOC_SAM_V7
 	select SRAM if PM

drivers/bus/fsl-mc/dprc-driver.c

···
  * It tears down the interrupts that were configured for the DPRC device.
  * It destroys the interrupt pool associated with this MC bus.
  */
-static int dprc_remove(struct fsl_mc_device *mc_dev)
+static void dprc_remove(struct fsl_mc_device *mc_dev)
 {
 	struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_dev);
 
-	if (!is_fsl_mc_bus_dprc(mc_dev))
-		return -EINVAL;
-
-	if (!mc_bus->irq_resources)
-		return -EINVAL;
+	if (!mc_bus->irq_resources) {
+		dev_err(&mc_dev->dev, "No irq resources, so unbinding the device failed\n");
+		return;
+	}
 
 	if (dev_get_msi_domain(&mc_dev->dev))
 		dprc_teardown_irq(mc_dev);
···
 	dprc_cleanup(mc_dev);
 
 	dev_info(&mc_dev->dev, "DPRC device unbound from driver");
-	return 0;
 }
 
 static const struct fsl_mc_device_id match_id_table[] = {

drivers/bus/fsl-mc/fsl-mc-allocator.c

···
 	struct fsl_mc_resource *resource;
 	int error = -EINVAL;
 
-	if (!fsl_mc_is_allocatable(mc_dev))
-		goto out;
-
-	resource = mc_dev->resource;
-	if (!resource || resource->data != mc_dev)
-		goto out;
-
 	mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
 	mc_bus = to_fsl_mc_bus(mc_bus_dev);
-	res_pool = resource->parent_pool;
-	if (res_pool != &mc_bus->resource_pools[resource->type])
+
+	resource = mc_dev->resource;
+	if (!resource || resource->data != mc_dev) {
+		dev_err(&mc_bus_dev->dev, "resource mismatch\n");
 		goto out;
+	}
+
+	res_pool = resource->parent_pool;
+	if (res_pool != &mc_bus->resource_pools[resource->type]) {
+		dev_err(&mc_bus_dev->dev, "pool mismatch\n");
+		goto out;
+	}
 
 	mutex_lock(&res_pool->mutex);
 
-	if (res_pool->max_count <= 0)
+	if (res_pool->max_count <= 0) {
+		dev_err(&mc_bus_dev->dev, "max_count underflow\n");
 		goto out_unlock;
+	}
 	if (res_pool->free_count <= 0 ||
-	    res_pool->free_count > res_pool->max_count)
+	    res_pool->free_count > res_pool->max_count) {
+		dev_err(&mc_bus_dev->dev, "free_count mismatch\n");
 		goto out_unlock;
+	}
 
 	/*
 	 * If the device is currently allocated, its resource is not
···
 	struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev);
 	struct fsl_mc_resource_pool *res_pool =
 					&mc_bus->resource_pools[pool_type];
-	int free_count = 0;
 
-	list_for_each_entry_safe(resource, next, &res_pool->free_list, node) {
-		free_count++;
+	list_for_each_entry_safe(resource, next, &res_pool->free_list, node)
 		devm_kfree(&mc_bus_dev->dev, resource);
-	}
 }
 
 void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev)
···
  * fsl_mc_allocator_remove - callback invoked when an allocatable device is
  * being removed from the system
  */
-static int fsl_mc_allocator_remove(struct fsl_mc_device *mc_dev)
+static void fsl_mc_allocator_remove(struct fsl_mc_device *mc_dev)
 {
 	int error;
-
-	if (!fsl_mc_is_allocatable(mc_dev))
-		return -EINVAL;
 
 	if (mc_dev->resource) {
 		error = fsl_mc_resource_pool_remove_device(mc_dev);
 		if (error < 0)
-			return error;
+			return;
 	}
 
 	dev_dbg(&mc_dev->dev,
 		"Allocatable fsl-mc device unbound from fsl_mc_allocator driver");
-	return 0;
 }
 
 static const struct fsl_mc_device_id match_id_table[] = {

drivers/bus/fsl-mc/fsl-mc-bus.c

···
 {
 	struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(dev->driver);
 	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
-	int error;
 
-	error = mc_drv->remove(mc_dev);
-	if (error < 0) {
-		dev_err(dev, "%s failed: %d\n", __func__, error);
-		return error;
-	}
+	mc_drv->remove(mc_dev);
 
 	return 0;
 }

drivers/bus/ti-sysc.c

···
 	if (!ddata->module_va)
 		return -EIO;
 
-	/* DISP_CONTROL */
+	/* DISP_CONTROL, shut down lcd and digit on disable if enabled */
 	val = sysc_read(ddata, dispc_offset + 0x40);
 	lcd_en = val & lcd_en_mask;
 	digit_en = val & digit_en_mask;
···
 		else
 			irq_mask |= BIT(2) | BIT(3);	/* EVSYNC bits */
 	}
-	if (disable & (lcd_en | digit_en))
+	if (disable && (lcd_en || digit_en))
 		sysc_write(ddata, dispc_offset + 0x40,
 			   val & ~(lcd_en_mask | digit_en_mask));
 

drivers/cpufreq/qcom-cpufreq-nvmem.c

···
 #include <linux/slab.h>
 #include <linux/soc/qcom/smem.h>
 
-#define MSM_ID_SMEM	137
-
-enum _msm_id {
-	MSM8996V3 = 0xF6ul,
-	APQ8096V3 = 0x123ul,
-	MSM8996SG = 0x131ul,
-	APQ8096SG = 0x138ul,
-};
-
-enum _msm8996_version {
-	MSM8996_V3,
-	MSM8996_SG,
-	NUM_OF_MSM8996_VERSIONS,
-};
+#include <dt-bindings/arm/qcom,ids.h>
 
 struct qcom_cpufreq_drv;
 
···
 	dev_dbg(cpu_dev, "PVS version: %d\n", *pvs_ver);
 }
 
-static enum _msm8996_version qcom_cpufreq_get_msm_id(void)
-{
-	size_t len;
-	u32 *msm_id;
-	enum _msm8996_version version;
-
-	msm_id = qcom_smem_get(QCOM_SMEM_HOST_ANY, MSM_ID_SMEM, &len);
-	if (IS_ERR(msm_id))
-		return NUM_OF_MSM8996_VERSIONS;
-
-	/* The first 4 bytes are format, next to them is the actual msm-id */
-	msm_id++;
-
-	switch ((enum _msm_id)*msm_id) {
-	case MSM8996V3:
-	case APQ8096V3:
-		version = MSM8996_V3;
-		break;
-	case MSM8996SG:
-	case APQ8096SG:
-		version = MSM8996_SG;
-		break;
-	default:
-		version = NUM_OF_MSM8996_VERSIONS;
-	}
-
-	return version;
-}
-
 static int qcom_cpufreq_kryo_name_version(struct device *cpu_dev,
 					  struct nvmem_cell *speedbin_nvmem,
 					  char **pvs_name,
 					  struct qcom_cpufreq_drv *drv)
 {
 	size_t len;
+	u32 msm_id;
 	u8 *speedbin;
-	enum _msm8996_version msm8996_version;
+	int ret;
 	*pvs_name = NULL;
 
-	msm8996_version = qcom_cpufreq_get_msm_id();
-	if (NUM_OF_MSM8996_VERSIONS == msm8996_version) {
-		dev_err(cpu_dev, "Not Snapdragon 820/821!");
-		return -ENODEV;
-	}
+	ret = qcom_smem_get_soc_id(&msm_id);
+	if (ret)
+		return ret;
 
 	speedbin = nvmem_cell_read(speedbin_nvmem, &len);
 	if (IS_ERR(speedbin))
 		return PTR_ERR(speedbin);
 
-	switch (msm8996_version) {
-	case MSM8996_V3:
+	switch (msm_id) {
+	case QCOM_ID_MSM8996:
+	case QCOM_ID_APQ8096:
 		drv->versions = 1 << (unsigned int)(*speedbin);
 		break;
-	case MSM8996_SG:
+	case QCOM_ID_MSM8996SG:
+	case QCOM_ID_APQ8096SG:
 		drv->versions = 1 << ((unsigned int)(*speedbin) + 4);
 		break;
 	default:

drivers/crypto/caam/caamalg_qi2.c

···
 	return err;
 }
 
-static int __cold dpaa2_caam_remove(struct fsl_mc_device *ls_dev)
+static void __cold dpaa2_caam_remove(struct fsl_mc_device *ls_dev)
 {
 	struct device *dev;
 	struct dpaa2_caam_priv *priv;
···
 	free_percpu(priv->ppriv);
 	fsl_mc_portal_free(priv->mc_io);
 	kmem_cache_destroy(qi_cache);
-
-	return 0;
 }
 
 int dpaa2_caam_enqueue(struct device *dev, struct caam_request *req)

drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.c

···
 	return err;
 }
 
-static int dpaa2_qdma_remove(struct fsl_mc_device *ls_dev)
+static void dpaa2_qdma_remove(struct fsl_mc_device *ls_dev)
 {
 	struct dpaa2_qdma_engine *dpaa2_qdma;
 	struct dpaa2_qdma_priv *priv;
···
 	dma_async_device_unregister(&dpaa2_qdma->dma_dev);
 	kfree(priv);
 	kfree(dpaa2_qdma);
-
-	return 0;
 }
 
 static void dpaa2_qdma_shutdown(struct fsl_mc_device *ls_dev)

drivers/firmware/arm_scmi/driver.c

···
 #endif
 #ifdef CONFIG_ARM_SCMI_TRANSPORT_SMC
 	{ .compatible = "arm,scmi-smc", .data = &scmi_smc_desc},
+	{ .compatible = "arm,scmi-smc-param", .data = &scmi_smc_desc},
 #endif
 #ifdef CONFIG_ARM_SCMI_TRANSPORT_VIRTIO
 	{ .compatible = "arm,scmi-virtio", .data = &scmi_virtio_desc},

drivers/firmware/arm_scmi/powercap.c

···
 };
 
 struct scmi_powercap_state {
+	bool enabled;
+	u32 last_pcap;
 	bool meas_notif_enabled;
 	u64 thresholds;
 #define THRESH_LOW(p, id)				\
···
 	return ret;
 }
 
-static int scmi_powercap_cap_get(const struct scmi_protocol_handle *ph,
-				 u32 domain_id, u32 *power_cap)
+static int __scmi_powercap_cap_get(const struct scmi_protocol_handle *ph,
+				   const struct scmi_powercap_info *dom,
+				   u32 *power_cap)
 {
-	struct scmi_powercap_info *dom;
-	struct powercap_info *pi = ph->get_priv(ph);
-
-	if (!power_cap || domain_id >= pi->num_domains)
-		return -EINVAL;
-
-	dom = pi->powercaps + domain_id;
 	if (dom->fc_info && dom->fc_info[POWERCAP_FC_CAP].get_addr) {
 		*power_cap = ioread32(dom->fc_info[POWERCAP_FC_CAP].get_addr);
 		trace_scmi_fc_call(SCMI_PROTOCOL_POWERCAP, POWERCAP_CAP_GET,
-				   domain_id, *power_cap, 0);
+				   dom->id, *power_cap, 0);
 		return 0;
 	}
 
-	return scmi_powercap_xfer_cap_get(ph, domain_id, power_cap);
+	return scmi_powercap_xfer_cap_get(ph, dom->id, power_cap);
+}
+
+static int scmi_powercap_cap_get(const struct scmi_protocol_handle *ph,
+				 u32 domain_id, u32 *power_cap)
+{
+	const struct scmi_powercap_info *dom;
+
+	if (!power_cap)
+		return -EINVAL;
+
+	dom = scmi_powercap_dom_info_get(ph, domain_id);
+	if (!dom)
+		return -EINVAL;
+
+	return __scmi_powercap_cap_get(ph, dom, power_cap);
 }
 
 static int scmi_powercap_xfer_cap_set(const struct scmi_protocol_handle *ph,
···
 	return ret;
 }
 
-static int scmi_powercap_cap_set(const struct scmi_protocol_handle *ph,
-				 u32 domain_id, u32 power_cap,
-				 bool ignore_dresp)
+static int __scmi_powercap_cap_set(const struct scmi_protocol_handle *ph,
+				   struct powercap_info *pi, u32 domain_id,
+				   u32 power_cap, bool ignore_dresp)
 {
+	int ret = -EINVAL;
 	const struct scmi_powercap_info *pc;
 
 	pc = scmi_powercap_dom_info_get(ph, domain_id);
-	if (!pc || !pc->powercap_cap_config || !power_cap ||
-	    power_cap < pc->min_power_cap ||
-	    power_cap > pc->max_power_cap)
-		return -EINVAL;
+	if (!pc || !pc->powercap_cap_config)
+		return ret;
+
+	if (power_cap &&
+	    (power_cap < pc->min_power_cap || power_cap > pc->max_power_cap))
+		return ret;
 
 	if (pc->fc_info && pc->fc_info[POWERCAP_FC_CAP].set_addr) {
 		struct scmi_fc_info *fci = &pc->fc_info[POWERCAP_FC_CAP];
···
 		ph->hops->fastchannel_db_ring(fci->set_db);
 		trace_scmi_fc_call(SCMI_PROTOCOL_POWERCAP, POWERCAP_CAP_SET,
 				   domain_id, power_cap, 0);
+		ret = 0;
+	} else {
+		ret = scmi_powercap_xfer_cap_set(ph, pc, power_cap,
+						 ignore_dresp);
+	}
+
+	/* Save the last explicitly set non-zero powercap value */
+	if (PROTOCOL_REV_MAJOR(pi->version) >= 0x2 && !ret && power_cap)
+		pi->states[domain_id].last_pcap = power_cap;
+
+	return ret;
+}
+
+static int scmi_powercap_cap_set(const struct scmi_protocol_handle *ph,
+				 u32 domain_id, u32 power_cap,
+				 bool ignore_dresp)
+{
+	struct powercap_info *pi = ph->get_priv(ph);
+
+	/*
+	 * Disallow zero as a possible explicitly requested powercap:
+	 * there are enable/disable operations for this.
+	 */
+	if (!power_cap)
+		return -EINVAL;
+
+	/* Just log the last set request if acting on a disabled domain */
+	if (PROTOCOL_REV_MAJOR(pi->version) >= 0x2 &&
+	    !pi->states[domain_id].enabled) {
+		pi->states[domain_id].last_pcap = power_cap;
 		return 0;
 	}
 
-	return scmi_powercap_xfer_cap_set(ph, pc, power_cap, ignore_dresp);
+	return __scmi_powercap_cap_set(ph, pi, domain_id,
+				       power_cap, ignore_dresp);
 }
 
 static int scmi_powercap_xfer_pai_get(const struct scmi_protocol_handle *ph,
···
 	return ret;
 }
 
+static int scmi_powercap_cap_enable_set(const struct scmi_protocol_handle *ph,
+					u32 domain_id, bool enable)
+{
+	int ret;
+	u32 power_cap;
+	struct powercap_info *pi = ph->get_priv(ph);
+
+	if (PROTOCOL_REV_MAJOR(pi->version) < 0x2)
+		return -EINVAL;
+
+	if (enable == pi->states[domain_id].enabled)
+		return 0;
+
+	if (enable) {
+		/* Cannot enable with a zero powercap. */
+		if (!pi->states[domain_id].last_pcap)
+			return -EINVAL;
+
+		ret = __scmi_powercap_cap_set(ph, pi, domain_id,
+					      pi->states[domain_id].last_pcap,
+					      true);
+	} else {
+		ret = __scmi_powercap_cap_set(ph, pi, domain_id, 0, true);
+	}
+
+	if (ret)
+		return ret;
+
+	/*
+	 * Update our internal state to reflect final platform state: the SCMI
+	 * server could have ignored a disable request and kept enforcing some
+	 * powercap limit requested by other agents.
+	 */
+	ret = scmi_powercap_cap_get(ph, domain_id, &power_cap);
+	if (!ret)
+		pi->states[domain_id].enabled = !!power_cap;
+
+	return ret;
+}
+
+static int scmi_powercap_cap_enable_get(const struct scmi_protocol_handle *ph,
+					u32 domain_id, bool *enable)
+{
+	int ret;
+	u32 power_cap;
+	struct powercap_info *pi = ph->get_priv(ph);
+
+	*enable = true;
+	if (PROTOCOL_REV_MAJOR(pi->version) < 0x2)
+		return 0;
+
+	/*
+	 * Report always real platform state; platform could have ignored
+	 * a previous disable request. Default true on any error.
+	 */
+	ret = scmi_powercap_cap_get(ph, domain_id, &power_cap);
+	if (!ret)
+		*enable = !!power_cap;
+
+	/* Update internal state with current real platform state */
+	pi->states[domain_id].enabled = *enable;
+
+	return 0;
+}
+
 static const struct scmi_powercap_proto_ops powercap_proto_ops = {
 	.num_domains_get = scmi_powercap_num_domains_get,
 	.info_get = scmi_powercap_dom_info_get,
 	.cap_get = scmi_powercap_cap_get,
 	.cap_set = scmi_powercap_cap_set,
+	.cap_enable_set = scmi_powercap_cap_enable_set,
+	.cap_enable_get = scmi_powercap_cap_enable_get,
 	.pai_get = scmi_powercap_pai_get,
 	.pai_set = scmi_powercap_pai_set,
 	.measurements_get = scmi_powercap_measurements_get,
···
 	if (!pinfo->powercaps)
 		return -ENOMEM;
 
+	pinfo->states = devm_kcalloc(ph->dev, pinfo->num_domains,
+				     sizeof(*pinfo->states), GFP_KERNEL);
+	if (!pinfo->states)
+		return -ENOMEM;
+
 	/*
 	 * Note that any failure in retrieving any domain attribute leads to
 	 * the whole Powercap protocol initialization failure: this way the
···
 		if (pinfo->powercaps[domain].fastchannels)
 			scmi_powercap_domain_init_fc(ph, domain,
 						     &pinfo->powercaps[domain].fc_info);
+
+		/* Grab initial state when disable is supported. */
+		if (PROTOCOL_REV_MAJOR(version) >= 0x2) {
+			ret = __scmi_powercap_cap_get(ph,
+						      &pinfo->powercaps[domain],
+						      &pinfo->states[domain].last_pcap);
+			if (ret)
+				return ret;
+
+			pinfo->states[domain].enabled =
+				!!pinfo->states[domain].last_pcap;
+		}
 	}
 
-	pinfo->states = devm_kcalloc(ph->dev, pinfo->num_domains,
-				     sizeof(*pinfo->states), GFP_KERNEL);
-	if (!pinfo->states)
-		return -ENOMEM;
-
 	pinfo->version = version;
-
 	return ph->set_priv(ph, pinfo);
 }
 

drivers/firmware/arm_scmi/smc.c

···
 
 #include "common.h"
 
+/*
+ * The shmem address is split into 4K page and offset.
+ * This is to make sure the parameters fit in 32bit arguments of the
+ * smc/hvc call to keep it uniform across smc32/smc64 conventions.
+ * This however limits the shmem address to 44 bit.
+ *
+ * These optional parameters can be used to distinguish among multiple
+ * scmi instances that are using the same smc-id.
+ * The page parameter is passed in r1/x1/w1 register and the offset parameter
+ * is passed in r2/x2/w2 register.
+ */
+
+#define SHMEM_SIZE (SZ_4K)
+#define SHMEM_SHIFT 12
+#define SHMEM_PAGE(x) (_UL((x) >> SHMEM_SHIFT))
+#define SHMEM_OFFSET(x) ((x) & (SHMEM_SIZE - 1))
+
 /**
  * struct scmi_smc - Structure representing a SCMI smc transport
  *
···
  * @inflight: Atomic flag to protect access to Tx/Rx shared memory area.
  *	      Used when operating in atomic mode.
  * @func_id: smc/hvc call function id
+ * @param_page: 4K page number of the shmem channel
+ * @param_offset: Offset within the 4K page of the shmem channel
  */
 
 struct scmi_smc {
···
 #define INFLIGHT_NONE	MSG_TOKEN_MAX
 	atomic_t inflight;
 	u32 func_id;
+	u32 param_page;
+	u32 param_offset;
 };
 
 static irqreturn_t smc_msg_done_isr(int irq, void *data)
···
 	if (ret < 0)
 		return ret;
 
+	if (of_device_is_compatible(dev->of_node, "arm,scmi-smc-param")) {
+		scmi_info->param_page = SHMEM_PAGE(res.start);
+		scmi_info->param_offset = SHMEM_OFFSET(res.start);
+	}
 	/*
 	 * If there is an interrupt named "a2p", then the service and
 	 * completion of a message is signaled by an interrupt rather than by
···
 {
 	struct scmi_smc *scmi_info = cinfo->transport_info;
 	struct arm_smccc_res res;
+	unsigned long page = scmi_info->param_page;
+	unsigned long offset = scmi_info->param_offset;
 
 	/*
 	 * Channel will be released only once response has been
···
 
 	shmem_tx_prepare(scmi_info->shmem, xfer, cinfo);
 
-	arm_smccc_1_1_invoke(scmi_info->func_id, 0, 0, 0, 0, 0, 0, 0, &res);
+	arm_smccc_1_1_invoke(scmi_info->func_id, page, offset, 0, 0, 0, 0, 0,
+			     &res);
 
 	/* Only SMCCC_RET_NOT_SUPPORTED is valid error code */
 	if (res.a0) {

drivers/firmware/tegra/bpmp-tegra186.c

···
  */
 
 #include <linux/genalloc.h>
+#include <linux/io.h>
 #include <linux/mailbox_client.h>
+#include <linux/of_address.h>
 #include <linux/platform_device.h>
 
 #include <soc/tegra/bpmp.h>
···
 
 	struct {
 		struct gen_pool *pool;
-		void __iomem *virt;
+		union {
+			void __iomem *sram;
+			void *dram;
+		};
 		dma_addr_t phys;
 	} tx, rx;
 
···
 	queue_size = tegra_ivc_total_queue_size(message_size);
 	offset = queue_size * index;
 
-	iosys_map_set_vaddr_iomem(&rx, priv->rx.virt + offset);
-	iosys_map_set_vaddr_iomem(&tx, priv->tx.virt + offset);
+	if (priv->rx.pool) {
+		iosys_map_set_vaddr_iomem(&rx, priv->rx.sram + offset);
+		iosys_map_set_vaddr_iomem(&tx, priv->tx.sram + offset);
+	} else {
+		iosys_map_set_vaddr(&rx, priv->rx.dram + offset);
+		iosys_map_set_vaddr(&tx, priv->tx.dram + offset);
+	}
 
 	err = tegra_ivc_init(channel->ivc, NULL, &rx, priv->rx.phys + offset, &tx,
 			     priv->tx.phys + offset, 1, message_size, tegra186_bpmp_ivc_notify,
···
 	tegra_bpmp_handle_rx(bpmp);
 }
 
-static int tegra186_bpmp_init(struct tegra_bpmp *bpmp)
+static void tegra186_bpmp_teardown_channels(struct tegra_bpmp *bpmp)
 {
-	struct tegra186_bpmp *priv;
+	struct tegra186_bpmp *priv = bpmp->priv;
 	unsigned int i;
+
+	for (i = 0; i < bpmp->threaded.count; i++) {
+		if (!bpmp->threaded_channels[i].bpmp)
+			continue;
+
+		tegra186_bpmp_channel_cleanup(&bpmp->threaded_channels[i]);
+	}
+
+	tegra186_bpmp_channel_cleanup(bpmp->rx_channel);
+	tegra186_bpmp_channel_cleanup(bpmp->tx_channel);
+
+	if (priv->tx.pool) {
+		gen_pool_free(priv->tx.pool, (unsigned long)priv->tx.sram, 4096);
+		gen_pool_free(priv->rx.pool, (unsigned long)priv->rx.sram, 4096);
+	}
+}
+
+static int tegra186_bpmp_dram_init(struct tegra_bpmp *bpmp)
+{
+	struct tegra186_bpmp *priv = bpmp->priv;
+	struct device_node *np;
+	struct resource res;
+	size_t size;
 	int err;
 
-	priv = devm_kzalloc(bpmp->dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
+	np = of_parse_phandle(bpmp->dev->of_node, "memory-region", 0);
+	if (!np)
+		return -ENODEV;
 
-	bpmp->priv = priv;
-	priv->parent = bpmp;
+	err = of_address_to_resource(np, 0, &res);
+	if (err < 0) {
+		dev_warn(bpmp->dev, "failed to parse memory region: %d\n", err);
+		return err;
+	}
+
+	size = resource_size(&res);
+
+	if (size < SZ_8K) {
+		dev_warn(bpmp->dev, "DRAM region must be larger than 8 KiB\n");
+		return -EINVAL;
+	}
+
+	priv->tx.phys = res.start;
+	priv->rx.phys = res.start + SZ_4K;
+
+	priv->tx.dram = devm_memremap(bpmp->dev, priv->tx.phys, size,
+				      MEMREMAP_WC);
+	if (IS_ERR(priv->tx.dram)) {
+		err = PTR_ERR(priv->tx.dram);
+		dev_warn(bpmp->dev, "failed to map DRAM region: %d\n", err);
+		return err;
+	}
+
+	priv->rx.dram = priv->tx.dram + SZ_4K;
+
+	return 0;
+}
+
+static int tegra186_bpmp_sram_init(struct tegra_bpmp *bpmp)
+{
+	struct tegra186_bpmp *priv = bpmp->priv;
+	int err;
 
 	priv->tx.pool = of_gen_pool_get(bpmp->dev->of_node, "shmem", 0);
 	if (!priv->tx.pool) {
···
 		return -EPROBE_DEFER;
 	}
 
-	priv->tx.virt = (void __iomem *)gen_pool_dma_alloc(priv->tx.pool, 4096, &priv->tx.phys);
-	if (!priv->tx.virt) {
+	priv->tx.sram = (void __iomem *)gen_pool_dma_alloc(priv->tx.pool, 4096,
+							   &priv->tx.phys);
+	if (!priv->tx.sram) {
 		dev_err(bpmp->dev, "failed to allocate from TX pool\n");
 		return -ENOMEM;
 	}
···
 		goto free_tx;
 	}
 
-	priv->rx.virt = (void __iomem *)gen_pool_dma_alloc(priv->rx.pool, 4096, &priv->rx.phys);
-	if (!priv->rx.virt) {
+	priv->rx.sram = (void __iomem *)gen_pool_dma_alloc(priv->rx.pool, 4096,
+							   &priv->rx.phys);
+	if (!priv->rx.sram) {
 		dev_err(bpmp->dev, "failed to allocate from RX pool\n");
 		err = -ENOMEM;
 		goto free_tx;
 	}
 
+	return 0;
+
+free_tx:
+	gen_pool_free(priv->tx.pool, (unsigned long)priv->tx.sram, 4096);
+
+	return err;
+}
+
+static int tegra186_bpmp_setup_channels(struct tegra_bpmp *bpmp)
+{
+	unsigned int i;
+	int err;
+
+	err = tegra186_bpmp_dram_init(bpmp);
+	if (err == -ENODEV) {
+		err = tegra186_bpmp_sram_init(bpmp);
+		if (err < 0)
+			return err;
+	}
+
 	err = tegra186_bpmp_channel_init(bpmp->tx_channel, bpmp,
 					 bpmp->soc->channels.cpu_tx.offset);
 	if (err < 0)
-		goto free_rx;
+		return err;
 
 	err = tegra186_bpmp_channel_init(bpmp->rx_channel, bpmp,
 					 bpmp->soc->channels.cpu_rx.offset);
-	if (err < 0)
-		goto cleanup_tx_channel;
+	if (err < 0) {
+		tegra186_bpmp_channel_cleanup(bpmp->tx_channel);
+		return err;
+	}
 
 	for (i = 0; i < bpmp->threaded.count; i++) {
 		unsigned int index = bpmp->soc->channels.thread.offset + i;
···
 		err = tegra186_bpmp_channel_init(&bpmp->threaded_channels[i],
 						 bpmp, index);
 		if (err < 0)
-			goto cleanup_channels;
+			break;
 	}
+
+	if (err < 0)
+		tegra186_bpmp_teardown_channels(bpmp);
+
+	return err;
+}
+
+static void tegra186_bpmp_reset_channels(struct tegra_bpmp *bpmp)
+{
+	unsigned int i;
+
+	/* reset message channels */
+	tegra186_bpmp_channel_reset(bpmp->tx_channel);
+	tegra186_bpmp_channel_reset(bpmp->rx_channel);
+
+	for (i = 0; i < bpmp->threaded.count; i++)
+		tegra186_bpmp_channel_reset(&bpmp->threaded_channels[i]);
+}
+
+static int tegra186_bpmp_init(struct tegra_bpmp *bpmp)
+{
+	struct tegra186_bpmp *priv;
+	int err;
+
+	priv = devm_kzalloc(bpmp->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->parent = bpmp;
+	bpmp->priv = priv;
+
+	err = tegra186_bpmp_setup_channels(bpmp);
+	if (err < 0)
+		return err;
 
 	/* mbox registration */
 	priv->mbox.client.dev = bpmp->dev;
···
 	if (IS_ERR(priv->mbox.channel)) {
 		err = PTR_ERR(priv->mbox.channel);
 		dev_err(bpmp->dev, "failed to get HSP mailbox: %d\n", err);
-		goto cleanup_channels;
+		tegra186_bpmp_teardown_channels(bpmp);
+		return err;
 	}
 
-	tegra186_bpmp_channel_reset(bpmp->tx_channel);
-	tegra186_bpmp_channel_reset(bpmp->rx_channel);
-
-	for (i = 0; i < bpmp->threaded.count; i++)
-		tegra186_bpmp_channel_reset(&bpmp->threaded_channels[i]);
+	tegra186_bpmp_reset_channels(bpmp);
 
 	return 0;
-
-cleanup_channels:
-	for (i = 0; i < bpmp->threaded.count; i++) {
-		if (!bpmp->threaded_channels[i].bpmp)
-			continue;
-
-		tegra186_bpmp_channel_cleanup(&bpmp->threaded_channels[i]);
-	}
-
-	tegra186_bpmp_channel_cleanup(bpmp->rx_channel);
-cleanup_tx_channel:
-	tegra186_bpmp_channel_cleanup(bpmp->tx_channel);
-free_rx:
-	gen_pool_free(priv->rx.pool, (unsigned long)priv->rx.virt, 4096);
-free_tx:
-	gen_pool_free(priv->tx.pool, (unsigned long)priv->tx.virt, 4096);
-
-	return err;
 }
 
 static void tegra186_bpmp_deinit(struct tegra_bpmp *bpmp)
 {
 	struct tegra186_bpmp *priv = bpmp->priv;
-	unsigned int i;
 
 	mbox_free_channel(priv->mbox.channel);
 
-	for (i = 0; i < bpmp->threaded.count; i++)
-		tegra186_bpmp_channel_cleanup(&bpmp->threaded_channels[i]);
-
-	tegra186_bpmp_channel_cleanup(bpmp->rx_channel);
-	tegra186_bpmp_channel_cleanup(bpmp->tx_channel);
-
-	gen_pool_free(priv->rx.pool, (unsigned long)priv->rx.virt, 4096);
-	gen_pool_free(priv->tx.pool, (unsigned long)priv->tx.virt, 4096);
+	tegra186_bpmp_teardown_channels(bpmp);
 }
 
 static int tegra186_bpmp_resume(struct tegra_bpmp *bpmp)
 {
-	unsigned int i;
-
-	/* reset message channels */
-	tegra186_bpmp_channel_reset(bpmp->tx_channel);
-	tegra186_bpmp_channel_reset(bpmp->rx_channel);
-
-	for (i = 0; i < bpmp->threaded.count; i++)
-		tegra186_bpmp_channel_reset(&bpmp->threaded_channels[i]);
+	tegra186_bpmp_reset_channels(bpmp);
 
 	return 0;
 }

drivers/firmware/tegra/bpmp.c

···
 	if (!bpmp->threaded_channels)
 		return -ENOMEM;
 
+	platform_set_drvdata(pdev, bpmp);
+
 	err = bpmp->soc->ops->init(bpmp);
 	if (err < 0)
 		return err;
···
 	}
 
 	dev_info(&pdev->dev, "firmware: %.*s\n", (int)sizeof(tag), tag);
-
-	platform_set_drvdata(pdev, bpmp);
 
 	err = of_platform_default_populate(pdev->dev.of_node, NULL, &pdev->dev);
 	if (err < 0)

drivers/firmware/xilinx/zynqmp.c

···
  */
 int zynqmp_pm_fpga_load(const u64 address, const u32 size, const u32 flags)
 {
-	return zynqmp_pm_invoke_fn(PM_FPGA_LOAD, lower_32_bits(address),
-				   upper_32_bits(address), size, flags, NULL);
+	u32 ret_payload[PAYLOAD_ARG_CNT];
+	int ret;
+
+	ret = zynqmp_pm_invoke_fn(PM_FPGA_LOAD, lower_32_bits(address),
+				  upper_32_bits(address), size, flags,
+				  ret_payload);
+	if (ret_payload[0])
+		return -ret_payload[0];
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(zynqmp_pm_fpga_load);
 

drivers/memory/Kconfig

···
 	  If you have an embedded system with an AMBA bus and a PL172
 	  controller, say Y or M here.
 
-config ATMEL_SDRAMC
-	bool "Atmel (Multi-port DDR-)SDRAM Controller"
-	default y if ARCH_AT91
-	depends on ARCH_AT91 || COMPILE_TEST
-	depends on OF
-	help
-	  This driver is for Atmel SDRAM Controller or Atmel Multi-port
-	  DDR-SDRAM Controller available on Atmel AT91SAM9 and SAMA5 SoCs.
-	  Starting with the at91sam9g45, this controller supports SDR, DDR and
-	  LP-DDR memories.
-
 config ATMEL_EBI
 	bool "Atmel EBI driver"
 	default y if ARCH_AT91

drivers/memory/Makefile

···
 obj-$(CONFIG_OF)		+= of_memory.o
 endif
 obj-$(CONFIG_ARM_PL172_MPMC)	+= pl172.o
-obj-$(CONFIG_ATMEL_SDRAMC)	+= atmel-sdramc.o
 obj-$(CONFIG_ATMEL_EBI)		+= atmel-ebi.o
 obj-$(CONFIG_BRCMSTB_DPFE)	+= brcmstb_dpfe.o
 obj-$(CONFIG_BRCMSTB_MEMC)	+= brcmstb_memc.o

drivers/memory/atmel-sdramc.c

···
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Atmel (Multi-port DDR-)SDRAM Controller driver
- *
- * Author: Alexandre Belloni <[e-mail]>
- *
- * Copyright (C) 2014 Atmel
- */
-
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/of_platform.h>
-#include <linux/platform_device.h>
-
-struct at91_ramc_caps {
-	bool has_ddrck;
-	bool has_mpddr_clk;
-};
-
-static const struct at91_ramc_caps at91rm9200_caps = { };
-
-static const struct at91_ramc_caps at91sam9g45_caps = {
-	.has_ddrck = 1,
-	.has_mpddr_clk = 0,
-};
-
-static const struct at91_ramc_caps sama5d3_caps = {
-	.has_ddrck = 1,
-	.has_mpddr_clk = 1,
-};
-
-static const struct of_device_id atmel_ramc_of_match[] = {
-	{ .compatible = "atmel,at91rm9200-sdramc", .data = &at91rm9200_caps, },
-	{ .compatible = "atmel,at91sam9260-sdramc", .data = &at91rm9200_caps, },
-	{ .compatible = "atmel,at91sam9g45-ddramc", .data = &at91sam9g45_caps, },
-	{ .compatible = "atmel,sama5d3-ddramc", .data = &sama5d3_caps, },
-	{},
-};
-
-static int atmel_ramc_probe(struct platform_device *pdev)
-{
-	const struct at91_ramc_caps *caps;
-	struct clk *clk;
-
-	caps = of_device_get_match_data(&pdev->dev);
-
-	if (caps->has_ddrck) {
-		clk = devm_clk_get_enabled(&pdev->dev, "ddrck");
-		if (IS_ERR(clk))
-			return PTR_ERR(clk);
-	}
-
-	if (caps->has_mpddr_clk) {
-		clk = devm_clk_get_enabled(&pdev->dev, "mpddr");
-		if (IS_ERR(clk)) {
-			pr_err("AT91 RAMC: couldn't get mpddr clock\n");
-			return PTR_ERR(clk);
-		}
-	}
-
-	return 0;
-}
-
-static struct platform_driver atmel_ramc_driver = {
-	.probe		= atmel_ramc_probe,
-	.driver		= {
-		.name	= "atmel-ramc",
-		.of_match_table = atmel_ramc_of_match,
-	},
-};
-
-builtin_platform_driver(atmel_ramc_driver);

drivers/memory/brcmstb_dpfe.c

···
 static int __send_command(struct brcmstb_dpfe_priv *priv, unsigned int cmd,
 			  u32 result[])
 {
-	const u32 *msg = priv->dpfe_api->command[cmd];
 	void __iomem *regs = priv->regs;
 	unsigned int i, chksum, chksum_idx;
+	const u32 *msg;
 	int ret = 0;
 	u32 resp;
 
 	if (cmd >= DPFE_CMD_MAX)
 		return -1;
+
+	msg = priv->dpfe_api->command[cmd];
 
 	mutex_lock(&priv->lock);
 

drivers/memory/renesas-rpc-if.c

···
  * Copyright (C) 2019-2020 Cogent Embedded, Inc.
  */
 
+#include <linux/bitops.h>
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/module.h>
···
 	.n_yes_ranges	= ARRAY_SIZE(rpcif_volatile_ranges),
 };
 
+struct rpcif_info {
+	enum rpcif_type type;
+	u8 strtim;
+};
+
 struct rpcif_priv {
 	struct device *dev;
 	void __iomem *base;
···
 	struct reset_control *rstc;
 	struct platform_device *vdev;
 	size_t size;
-	enum rpcif_type type;
+	const struct rpcif_info *info;
 	enum rpcif_data_dir dir;
 	u8 bus_size;
 	u8 xfer_size;
···
 	u32 enable;		/* DRENR or SMENR */
 	u32 dummy;		/* DRDMCR or SMDMCR */
 	u32 ddr;		/* DRDRENR or SMDRENR */
+};
+
+static const struct rpcif_info rpcif_info_r8a7796 = {
+	.type = RPCIF_RCAR_GEN3,
+	.strtim = 6,
+};
+
+static const struct rpcif_info rpcif_info_gen3 = {
+	.type = RPCIF_RCAR_GEN3,
+	.strtim = 7,
+};
+
+static const struct rpcif_info rpcif_info_rz_g2l = {
+	.type = RPCIF_RZ_G2L,
+	.strtim = 7,
+};
+
+static const struct rpcif_info rpcif_info_gen4 = {
+	.type = RPCIF_RCAR_GEN4,
+	.strtim = 15,
 };
 
 /*
···
 	if (ret)
 		return ret;
 
-	if (rpc->type == RPCIF_RZ_G2L) {
+	if (rpc->info->type == RPCIF_RZ_G2L) {
 		ret = reset_control_reset(rpc->rstc);
 		if (ret)
 			return ret;
···
 	/* DMA Transfer is not supported */
 	regmap_update_bits(rpc->regmap, RPCIF_PHYCNT, RPCIF_PHYCNT_HS, 0);
 
-	if (rpc->type == RPCIF_RCAR_GEN3)
-		regmap_update_bits(rpc->regmap, RPCIF_PHYCNT,
-				   RPCIF_PHYCNT_STRTIM(7), RPCIF_PHYCNT_STRTIM(7));
-	else if (rpc->type == RPCIF_RCAR_GEN4)
-		regmap_update_bits(rpc->regmap, RPCIF_PHYCNT,
-				   RPCIF_PHYCNT_STRTIM(15), RPCIF_PHYCNT_STRTIM(15));
+	regmap_update_bits(rpc->regmap, RPCIF_PHYCNT,
+			   /* create mask with all affected bits set */
+			   RPCIF_PHYCNT_STRTIM(BIT(fls(rpc->info->strtim)) - 1),
+			   RPCIF_PHYCNT_STRTIM(rpc->info->strtim));
 
 	regmap_update_bits(rpc->regmap, RPCIF_PHYOFFSET1, RPCIF_PHYOFFSET1_DDRTMG(3),
 			   RPCIF_PHYOFFSET1_DDRTMG(3));
···
 		regmap_update_bits(rpc->regmap, RPCIF_PHYINT,
 				   RPCIF_PHYINT_WPVAL, 0);
 
-	if (rpc->type == RPCIF_RZ_G2L)
+	if (rpc->info->type == RPCIF_RZ_G2L)
 		regmap_update_bits(rpc->regmap, RPCIF_CMNCR,
 				   RPCIF_CMNCR_MOIIO(3) | RPCIF_CMNCR_IOFV(3) |
 				   RPCIF_CMNCR_BSZ(3),
···
 	rpc->dirmap = devm_ioremap_resource(dev, res);
 	if (IS_ERR(rpc->dirmap))
 		return PTR_ERR(rpc->dirmap);
-	rpc->size = resource_size(res);
 
-	rpc->type = (uintptr_t)of_device_get_match_data(dev);
+	rpc->size = resource_size(res);
+	rpc->info = of_device_get_match_data(dev);
 	rpc->rstc = devm_reset_control_get_exclusive(dev, NULL);
 	if (IS_ERR(rpc->rstc))
 		return PTR_ERR(rpc->rstc);
···
 }
 
 static const struct of_device_id rpcif_of_match[] = {
-	{ .compatible = "renesas,rcar-gen3-rpc-if", .data = (void *)RPCIF_RCAR_GEN3 },
-	{ .compatible = "renesas,rcar-gen4-rpc-if", .data = (void *)RPCIF_RCAR_GEN4 },
-	{ .compatible = "renesas,rzg2l-rpc-if", .data = (void *)RPCIF_RZ_G2L },
+	{ .compatible = "renesas,r8a7796-rpc-if", .data = &rpcif_info_r8a7796 },
+	{ .compatible = "renesas,rcar-gen3-rpc-if", .data = &rpcif_info_gen3 },
+	{ .compatible = "renesas,rcar-gen4-rpc-if", .data = &rpcif_info_gen4 },
+	{ .compatible = "renesas,rzg2l-rpc-if", .data = &rpcif_info_rz_g2l },
 	{},
 };
 MODULE_DEVICE_TABLE(of, rpcif_of_match);

drivers/memory/tegra/mc.c

···
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/sort.h>
+#include <linux/tegra-icc.h>
 
 #include <soc/tegra/fuse.h>
 
···
 	mc->provider.data = &mc->provider;
 	mc->provider.set = mc->soc->icc_ops->set;
 	mc->provider.aggregate = mc->soc->icc_ops->aggregate;
+	mc->provider.get_bw = mc->soc->icc_ops->get_bw;
+	mc->provider.xlate = mc->soc->icc_ops->xlate;
 	mc->provider.xlate_extended = mc->soc->icc_ops->xlate_extended;
 
 	icc_provider_init(&mc->provider);
···
 		err = icc_link_create(node, TEGRA_ICC_MC);
 		if (err)
 			goto remove_nodes;
+
+		node->data = (struct tegra_mc_client *)&(mc->soc->clients[i]);
 	}
 
 	err = icc_provider_register(&mc->provider);
···
 	icc_nodes_remove(&mc->provider);
 
 	return err;
+}
+
+static void tegra_mc_num_channel_enabled(struct tegra_mc *mc)
+{
+	unsigned int i;
+	u32 value;
+
+	value = mc_ch_readl(mc, 0, MC_EMEM_ADR_CFG_CHANNEL_ENABLE);
+	if (value <= 0) {
+		mc->num_channels = mc->soc->num_channels;
+		return;
+	}
+
+	for (i = 0; i < 32; i++) {
+		if (value & BIT(i))
+			mc->num_channels++;
+	}
 }
 
 static int tegra_mc_probe(struct platform_device *pdev)
···
 		if (err < 0)
 			return err;
 	}
+
+	tegra_mc_num_channel_enabled(mc);
 
 	if (mc->soc->ops && mc->soc->ops->handle_irq) {
 		mc->irq = platform_get_irq(pdev, 0);

drivers/memory/tegra/mc.h

···
 #define MC_ERR_ROUTE_SANITY_ADR				0x9c4
 #define MC_ERR_GENERALIZED_CARVEOUT_STATUS		0xc00
 #define MC_ERR_GENERALIZED_CARVEOUT_ADR			0xc04
+#define MC_EMEM_ADR_CFG_CHANNEL_ENABLE			0xdf8
 #define MC_GLOBAL_INTSTATUS				0xf24
 #define MC_ERR_ADR_HI					0x11fc
 

drivers/memory/tegra/tegra186-emc.c

···
 #include <linux/debugfs.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
+#include <linux/of_platform.h>
 #include <linux/platform_device.h>
 
 #include <soc/tegra/bpmp.h>
+#include "mc.h"
 
 struct tegra186_emc_dvfs {
 	unsigned long latency;
···
 		unsigned long min_rate;
 		unsigned long max_rate;
 	} debugfs;
+
+	struct icc_provider provider;
 };
+
+static inline struct tegra186_emc *to_tegra186_emc(struct icc_provider *provider)
+{
+	return container_of(provider, struct tegra186_emc, provider);
+}
 
 /*
  * debugfs interface
···
 			  tegra186_emc_debug_max_rate_get,
 			  tegra186_emc_debug_max_rate_set, "%llu\n");
 
+/*
+ * tegra_emc_icc_set_bw() - Set BW api for EMC provider
+ * @src: ICC node for External Memory Controller (EMC)
+ * @dst: ICC node for External Memory (DRAM)
+ *
+ * Do nothing here as info to BPMP-FW is now passed in the BW set function
+ * of the MC driver. BPMP-FW sets the final Freq based on the passed values.
+ */
+static int tegra_emc_icc_set_bw(struct icc_node *src, struct icc_node *dst)
+{
+	return 0;
+}
+
+static struct icc_node *
+tegra_emc_of_icc_xlate(struct of_phandle_args *spec, void *data)
+{
+	struct icc_provider *provider = data;
+	struct icc_node *node;
+
+	/* External Memory is the only possible ICC route */
+	list_for_each_entry(node, &provider->nodes, node_list) {
+		if (node->id != TEGRA_ICC_EMEM)
+			continue;
+
+		return node;
+	}
+
+	return ERR_PTR(-EPROBE_DEFER);
+}
+
+static int tegra_emc_icc_get_init_bw(struct icc_node *node, u32 *avg, u32 *peak)
+{
+	*avg = 0;
+	*peak = 0;
+
+	return 0;
+}
+
+static int tegra_emc_interconnect_init(struct tegra186_emc *emc)
+{
+	struct tegra_mc *mc = dev_get_drvdata(emc->dev->parent);
+	const struct tegra_mc_soc *soc = mc->soc;
+	struct icc_node *node;
+	int err;
+
+	emc->provider.dev = emc->dev;
+	emc->provider.set = tegra_emc_icc_set_bw;
+	emc->provider.data = &emc->provider;
+	emc->provider.aggregate = soc->icc_ops->aggregate;
+	emc->provider.xlate = tegra_emc_of_icc_xlate;
+	emc->provider.get_bw = tegra_emc_icc_get_init_bw;
+
+	icc_provider_init(&emc->provider);
+
+	/* create External Memory Controller node */
+	node = icc_node_create(TEGRA_ICC_EMC);
+	if (IS_ERR(node)) {
+		err = PTR_ERR(node);
+		goto err_msg;
+	}
+
+	node->name = "External Memory Controller";
+	icc_node_add(node, &emc->provider);
+
+	/* link External Memory Controller to External Memory (DRAM) */
+	err = icc_link_create(node, TEGRA_ICC_EMEM);
+	if (err)
+		goto remove_nodes;
+
+	/* create External Memory node */
+	node = icc_node_create(TEGRA_ICC_EMEM);
+	if (IS_ERR(node)) {
+		err = PTR_ERR(node);
+		goto remove_nodes;
+	}
+
+	node->name = "External Memory (DRAM)";
+	icc_node_add(node, &emc->provider);
+
+	err = icc_provider_register(&emc->provider);
+	if (err)
+		goto remove_nodes;
+
+	return 0;
+
+remove_nodes:
+	icc_nodes_remove(&emc->provider);
+err_msg:
+	dev_err(emc->dev, "failed to initialize ICC: %d\n", err);
+
+	return err;
+}
+
 static int tegra186_emc_probe(struct platform_device *pdev)
 {
+	struct tegra_mc *mc = dev_get_drvdata(pdev->dev.parent);
 	struct mrq_emc_dvfs_latency_response response;
 	struct tegra_bpmp_message msg;
 	struct tegra186_emc *emc;
···
 	debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
 			    emc, &tegra186_emc_debug_max_rate_fops);
 
+	if (mc && mc->soc->icc_ops) {
+		if (tegra_bpmp_mrq_is_supported(emc->bpmp, MRQ_BWMGR_INT)) {
+			mc->bwmgr_mrq_supported = true;
+
+			/*
+			 * MC driver probe can't get BPMP reference as it gets probed
+			 * earlier than BPMP. So, save the BPMP ref got from the EMC
+			 * DT node in the mc->bpmp and use it in MC's icc_set hook.
+			 */
+			mc->bpmp = emc->bpmp;
+			barrier();
+		}
+
+		/*
+		 * Initialize the ICC even if BPMP-FW doesn't support 'MRQ_BWMGR_INT'.
+		 * Use the flag 'mc->bwmgr_mrq_supported' within MC driver and return
+		 * EINVAL instead of passing the request to BPMP-FW later when the BW
+		 * request is made by client with 'icc_set_bw()' call.
+		 */
+		err = tegra_emc_interconnect_init(emc);
+		if (err) {
+			mc->bpmp = NULL;
+			goto put_bpmp;
+		}
+	}
+
 	return 0;
 
 put_bpmp:
···
 
 static int tegra186_emc_remove(struct platform_device *pdev)
 {
+	struct tegra_mc *mc = dev_get_drvdata(pdev->dev.parent);
 	struct tegra186_emc *emc = platform_get_drvdata(pdev);
 
 	debugfs_remove_recursive(emc->debugfs.root);
+
+	mc->bpmp = NULL;
 	tegra_bpmp_put(emc->bpmp);
 
 	return 0;
···
 		.name = "tegra186-emc",
 		.of_match_table = tegra186_emc_of_match,
 		.suppress_bind_attrs = true,
+		.sync_state = icc_sync_state,
 	},
 	.probe = tegra186_emc_probe,
 	.remove = tegra186_emc_remove,

drivers/memory/tegra/tegra234.c

···
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (C) 2021-2022, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (C) 2022-2023, NVIDIA CORPORATION.  All rights reserved.
  */
 
 #include <soc/tegra/mc.h>
 
 #include <dt-bindings/memory/tegra234-mc.h>
+#include <linux/interconnect.h>
+#include <linux/tegra-icc.h>
 
+#include <soc/tegra/bpmp.h>
 #include "mc.h"
 
 static const struct tegra_mc_client tegra234_mc_clients[] = {
 	{
+		.id = TEGRA234_MEMORY_CLIENT_HDAR,
+		.name = "hdar",
+		.bpmp_id = TEGRA_ICC_BPMP_HDA,
+		.type = TEGRA_ICC_ISO_AUDIO,
+		.sid = TEGRA234_SID_HDA,
+		.regs = {
+			.sid = {
+				.override = 0xa8,
+				.security = 0xac,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_HDAW,
+		.name = "hdaw",
+		.bpmp_id = TEGRA_ICC_BPMP_HDA,
+		.type = TEGRA_ICC_ISO_AUDIO,
+		.sid = TEGRA234_SID_HDA,
+		.regs = {
+			.sid = {
+				.override = 0x1a8,
+				.security = 0x1ac,
+			},
+		},
+	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBEARD,
 		.name = "mgbeard",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE,
 		.regs = {
 			.sid = {
···
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBEBRD,
 		.name = "mgbebrd",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE_VF1,
 		.regs = {
 			.sid = {
···
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBECRD,
 		.name = "mgbecrd",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE_VF2,
 		.regs = {
 			.sid = {
···
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBEDRD,
 		.name = "mgbedrd",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE_VF3,
 		.regs = {
 			.sid = {
···
 		},
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBEAWR,
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.name = "mgbeawr",
 		.sid = TEGRA234_SID_MGBE,
 		.regs = {
···
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBEBWR,
 		.name = "mgbebwr",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE_VF1,
 		.regs = {
 			.sid = {
···
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBECWR,
 		.name = "mgbecwr",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE_VF2,
 		.regs = {
 			.sid = {
···
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_SDMMCRAB,
 		.name = "sdmmcrab",
+		.bpmp_id = TEGRA_ICC_BPMP_SDMMC_4,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_SDMMC4,
 		.regs = {
 			.sid = {
···
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBEDWR,
 		.name = "mgbedwr",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE_VF3,
 		.regs = {
 			.sid = {
···
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_SDMMCWAB,
 		.name = "sdmmcwab",
+		.bpmp_id = TEGRA_ICC_BPMP_SDMMC_4,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_SDMMC4,
 		.regs = {
 			.sid = {
 				.override = 0x338,
 				.security = 0x33c,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_VI2W,
+		.name = "vi2w",
+		.bpmp_id = TEGRA_ICC_BPMP_VI2,
+		.type = TEGRA_ICC_ISO_VI,
+		.sid = TEGRA234_SID_ISO_VI2,
+		.regs = {
+			.sid = {
+				.override = 0x380,
+				.security = 0x384,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_VI2FALR,
+		.name = "vi2falr",
+		.bpmp_id = TEGRA_ICC_BPMP_VI2FAL,
+		.type = TEGRA_ICC_ISO_VIFAL,
+		.sid = TEGRA234_SID_ISO_VI2FALC,
+		.regs = {
+			.sid = {
+				.override = 0x388,
+				.security = 0x38c,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_VI2FALW,
+		.name = "vi2falw",
+		.bpmp_id = TEGRA_ICC_BPMP_VI2FAL,
+		.type = TEGRA_ICC_ISO_VIFAL,
+		.sid = TEGRA234_SID_ISO_VI2FALC,
+		.regs = {
+			.sid = {
+				.override = 0x3e0,
+				.security = 0x3e4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_APER,
+		.name = "aper",
+		.bpmp_id = TEGRA_ICC_BPMP_APE,
+		.type = TEGRA_ICC_ISO_AUDIO,
+		.sid = TEGRA234_SID_APE,
+		.regs = {
+			.sid = {
+				.override = 0x3d0,
+				.security = 0x3d4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_APEW,
+		.name = "apew",
+		.bpmp_id = TEGRA_ICC_BPMP_APE,
+		.type = TEGRA_ICC_ISO_AUDIO,
+		.sid = TEGRA234_SID_APE,
+		.regs = {
+			.sid = {
+				.override = 0x3d8,
+				.security = 0x3dc,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_NVDISPLAYR,
+		.name = "nvdisplayr",
+		.bpmp_id = TEGRA_ICC_BPMP_DISPLAY,
+		.type = TEGRA_ICC_ISO_DISPLAY,
+		.sid = TEGRA234_SID_ISO_NVDISPLAY,
+		.regs = {
+			.sid = {
+				.override = 0x490,
+				.security = 0x494,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_NVDISPLAYR1,
+		.name = "nvdisplayr1",
+		.bpmp_id = TEGRA_ICC_BPMP_DISPLAY,
+		.type = TEGRA_ICC_ISO_DISPLAY,
+		.sid = TEGRA234_SID_ISO_NVDISPLAY,
+		.regs = {
+			.sid = {
+				.override = 0x508,
+				.security = 0x50c,
 			},
 		},
 	}, {
···
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_APEDMAR,
 		.name = "apedmar",
+		.bpmp_id = TEGRA_ICC_BPMP_APEDMA,
+		.type = TEGRA_ICC_ISO_AUDIO,
 		.sid = TEGRA234_SID_APE,
 		.regs = {
 			.sid = {
···
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_APEDMAW,
 		.name = "apedmaw",
+		.bpmp_id = TEGRA_ICC_BPMP_APEDMA,
+		.type = TEGRA_ICC_ISO_AUDIO,
 		.sid = TEGRA234_SID_APE,
 		.regs = {
 			.sid = {
···
 				.security = 0x37c,
 			},
 		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE0R,
+		.name = "pcie0r",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_0,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE0,
+		.regs = {
+			.sid = {
+				.override = 0x6c0,
+				.security = 0x6c4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE0W,
+		.name = "pcie0w",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_0,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE0,
+		.regs = {
+			.sid = {
+				.override = 0x6c8,
+				.security = 0x6cc,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE1R,
+		.name = "pcie1r",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_1,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE1,
+		.regs = {
+			.sid = {
+				.override = 0x6d0,
+				.security = 0x6d4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE1W,
+		.name = "pcie1w",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_1,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE1,
+		.regs = {
+			.sid = {
+				.override = 0x6d8,
+				.security = 0x6dc,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE2AR,
+		.name = "pcie2ar",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_2,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE2,
+		.regs = {
+			.sid = {
+				.override = 0x6e0,
+				.security = 0x6e4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE2AW,
+		.name = "pcie2aw",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_2,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE2,
+		.regs = {
+			.sid = {
+				.override = 0x6e8,
+				.security = 0x6ec,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE3R,
+		.name = "pcie3r",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_3,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE3,
+		.regs = {
+			.sid = {
+				.override = 0x6f0,
+				.security = 0x6f4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE3W,
+		.name = "pcie3w",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_3,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE3,
+		.regs = {
+			.sid = {
+				.override = 0x6f8,
+				.security = 0x6fc,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE4R,
+		.name = "pcie4r",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_4,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE4,
+		.regs = {
+			.sid = {
+				.override = 0x700,
+				.security = 0x704,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE4W,
+		.name = "pcie4w",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_4,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE4,
+		.regs = {
+			.sid = {
+				.override = 0x708,
+				.security = 0x70c,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE5R,
+		.name = "pcie5r",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_5,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE5,
+		.regs = {
+			.sid = {
+				.override = 0x710,
+				.security = 0x714,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE5W,
+		.name = "pcie5w",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_5,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE5,
+		.regs = {
+			.sid = {
+				.override = 0x718,
+				.security = 0x71c,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE5R1,
+		.name = "pcie5r1",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_5,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE5,
+		.regs = {
+			.sid = {
+				.override = 0x778,
+				.security = 0x77c,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE6AR,
+		.name = "pcie6ar",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_6,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE6,
+		.regs = {
+			.sid = {
+				.override = 0x140,
+				.security = 0x144,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE6AW,
+		.name = "pcie6aw",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_6,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE6,
+		.regs = {
+			.sid = {
+				.override = 0x148,
+				.security = 0x14c,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE6AR1,
+		.name = "pcie6ar1",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_6,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE6,
+		.regs = {
+			.sid = {
+				.override = 0x1e8,
+				.security = 0x1ec,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE7AR,
+		.name = "pcie7ar",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_7,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE7,
+		.regs = {
+			.sid = {
+				.override = 0x150,
+				.security = 0x154,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE7AW,
+		.name = "pcie7aw",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_7,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE7,
+		.regs = {
+			.sid = {
+				.override = 0x180,
+				.security = 0x184,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE7AR1,
+		.name = "pcie7ar1",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_7,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE7,
+		.regs = {
+			.sid = {
+				.override = 0x248,
+				.security = 0x24c,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE8AR,
+		.name = "pcie8ar",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_8,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE8,
+		.regs = {
+			.sid = {
+				.override = 0x190,
+				.security = 0x194,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE8AW,
+		.name = "pcie8aw",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_8,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE8,
+		.regs = {
+			.sid = {
+				.override = 0x1d8,
+				.security = 0x1dc,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE9AR,
+		.name = "pcie9ar",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_9,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE9,
+		.regs = {
+			.sid = {
+				.override = 0x1e0,
+				.security = 0x1e4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE9AW,
+		.name = "pcie9aw",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_9,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE9,
+		.regs = {
+			.sid = {
+				.override = 0x1f0,
+				.security = 0x1f4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE10AR,
+		.name = "pcie10ar",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_10,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE10,
+		.regs = {
+			.sid = {
+				.override = 0x1f8,
+				.security = 0x1fc,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE10AW,
+		.name = "pcie10aw",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_10,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE10,
+		.regs = {
+			.sid = {
+				.override = 0x200,
+				.security = 0x204,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE10AR1,
+		.name = "pcie10ar1",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_10,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE10,
+		.regs = {
+			.sid = {
+				.override = 0x240,
+				.security = 0x244,
+			},
+		},
+	}, {
+		.id = TEGRA_ICC_MC_CPU_CLUSTER0,
+		.name = "sw_cluster0",
+		.bpmp_id = TEGRA_ICC_BPMP_CPU_CLUSTER0,
+		.type = TEGRA_ICC_NISO,
+	}, {
+		.id = TEGRA_ICC_MC_CPU_CLUSTER1,
+		.name = "sw_cluster1",
+		.bpmp_id = TEGRA_ICC_BPMP_CPU_CLUSTER1,
+		.type = TEGRA_ICC_NISO,
+	}, {
+		.id = TEGRA_ICC_MC_CPU_CLUSTER2,
+		.name = "sw_cluster2",
+		.bpmp_id = TEGRA_ICC_BPMP_CPU_CLUSTER2,
+		.type = TEGRA_ICC_NISO,
 	},
+};
+
+/*
+ * tegra234_mc_icc_set() - Pass MC client info to the BPMP-FW
+ * @src: ICC node for Memory Controller's (MC) Client
+ * @dst: ICC node for Memory Controller (MC)
+ *
+ * Passing the current request info from the MC to the BPMP-FW where
+ * LA and PTSA registers are accessed and the final EMC freq is set
+ * based on client_id, type, latency and bandwidth.
+ * icc_set_bw() makes set_bw calls for both MC and EMC providers in
+ * sequence. Both the calls are protected by 'mutex_lock(&icc_lock)'.
+ * So, the data passed won't be updated by concurrent set calls from
+ * other clients.
+ */
+static int tegra234_mc_icc_set(struct icc_node *src, struct icc_node *dst)
+{
+	struct tegra_mc *mc = icc_provider_to_tegra_mc(dst->provider);
+	struct mrq_bwmgr_int_request bwmgr_req = { 0 };
+	struct mrq_bwmgr_int_response bwmgr_resp = { 0 };
+	const struct tegra_mc_client *pclient = src->data;
+	struct tegra_bpmp_message msg;
+	int ret;
+
+	/*
+	 * Same Src and Dst node will happen during boot from icc_node_add().
+	 * This can be used to pre-initialize and set bandwidth for all clients
+	 * before their drivers are loaded. We are skipping this case as for us,
+	 * the pre-initialization already happened in Bootloader(MB2) and BPMP-FW.
+	 */
+	if (src->id == dst->id)
+		return 0;
+
+	if (!mc->bwmgr_mrq_supported)
+		return -EINVAL;
+
+	if (!mc->bpmp) {
+		dev_err(mc->dev, "BPMP reference NULL\n");
+		return -ENOENT;
+	}
+
+	if (pclient->type == TEGRA_ICC_NISO)
+		bwmgr_req.bwmgr_calc_set_req.niso_bw = src->avg_bw;
+	else
+		bwmgr_req.bwmgr_calc_set_req.iso_bw = src->avg_bw;
+
+	bwmgr_req.bwmgr_calc_set_req.client_id = pclient->bpmp_id;
+
+	bwmgr_req.cmd = CMD_BWMGR_INT_CALC_AND_SET;
+	bwmgr_req.bwmgr_calc_set_req.mc_floor = src->peak_bw;
+	bwmgr_req.bwmgr_calc_set_req.floor_unit = BWMGR_INT_UNIT_KBPS;
+
+	memset(&msg, 0, sizeof(msg));
+	msg.mrq = MRQ_BWMGR_INT;
+	msg.tx.data = &bwmgr_req;
+	msg.tx.size = sizeof(bwmgr_req);
+	msg.rx.data = &bwmgr_resp;
+	msg.rx.size = sizeof(bwmgr_resp);
+
+	ret = tegra_bpmp_transfer(mc->bpmp, &msg);
+	if (ret < 0) {
+		dev_err(mc->dev, "BPMP transfer failed: %d\n", ret);
+		goto error;
+	}
+	if (msg.rx.ret < 0) {
+		pr_err("failed to set bandwidth for %u: %d\n",
+		       bwmgr_req.bwmgr_calc_set_req.client_id, msg.rx.ret);
+		ret = -EINVAL;
+	}
+
+error:
+	return ret;
+}
+
+static int tegra234_mc_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
+				     u32 peak_bw, u32 *agg_avg, u32 *agg_peak)
+{
+	struct icc_provider *p = node->provider;
+	struct tegra_mc *mc = icc_provider_to_tegra_mc(p);
+
+	if (!mc->bwmgr_mrq_supported)
+		return -EINVAL;
+
+	if (node->id == TEGRA_ICC_MC_CPU_CLUSTER0 ||
+	    node->id == TEGRA_ICC_MC_CPU_CLUSTER1 ||
+	    node->id == TEGRA_ICC_MC_CPU_CLUSTER2) {
+		if (mc)
+			peak_bw = peak_bw * mc->num_channels;
+	}
+
+	*agg_avg += avg_bw;
+	*agg_peak = max(*agg_peak, peak_bw);
+
+	return 0;
+}
+
+static struct icc_node*
+tegra234_mc_of_icc_xlate(struct of_phandle_args *spec, void *data)
+{
+	struct tegra_mc *mc = icc_provider_to_tegra_mc(data);
+	unsigned int cl_id = spec->args[0];
+	struct icc_node *node;
+
+	list_for_each_entry(node, &mc->provider.nodes, node_list) {
+		if (node->id != cl_id)
+			continue;
+
+		return node;
+	}
+
+	/*
+	 * If a client driver calls devm_of_icc_get() before the MC driver
+	 * is probed, then return EPROBE_DEFER to the client driver.
+	 */
+	return ERR_PTR(-EPROBE_DEFER);
+}
+
+static int tegra234_mc_icc_get_init_bw(struct icc_node *node, u32 *avg, u32 *peak)
+{
+	*avg = 0;
+	*peak = 0;
+
+	return 0;
+}
+
+static const struct tegra_mc_icc_ops tegra234_mc_icc_ops = {
+	.xlate = tegra234_mc_of_icc_xlate,
+	.aggregate = tegra234_mc_icc_aggregate,
+	.get_bw = tegra234_mc_icc_get_init_bw,
+	.set = tegra234_mc_icc_set,
 };
 
 const struct tegra_mc_soc tegra234_mc_soc = {
···
 		   MC_INT_SECURITY_VIOLATION | MC_INT_DECERR_EMEM,
 	.has_addr_hi_reg = true,
 	.ops = &tegra186_mc_ops,
+	.icc_ops = &tegra234_mc_icc_ops,
 	.ch_intmask = 0x0000ff00,
 	.global_intstatus_channel_shift = 8,
 	/*

drivers/misc/sram.c

···
 				goto err_chunks;
 			}
 			if (!label)
-				label = child->name;
-
-			block->label = devm_kstrdup(sram->dev,
-						    label, GFP_KERNEL);
+				block->label = devm_kasprintf(sram->dev, GFP_KERNEL,
+							      "%s", dev_name(sram->dev));
+			else
+				block->label = devm_kstrdup(sram->dev,
+							    label, GFP_KERNEL);
 			if (!block->label) {
 				ret = -ENOMEM;
 				goto err_chunks;

drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c

···
 	return err;
 }
 
-static int dpaa2_eth_remove(struct fsl_mc_device *ls_dev)
+static void dpaa2_eth_remove(struct fsl_mc_device *ls_dev)
 {
 	struct device *dev;
 	struct net_device *net_dev;
···
 	dev_dbg(net_dev->dev.parent, "Removed interface %s\n", net_dev->name);
 
 	free_netdev(net_dev);
-
-	return 0;
 }
 
 static const struct fsl_mc_device_id dpaa2_eth_match_id_table[] = {

drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c

···
 	return err;
 }
 
-static int dpaa2_ptp_remove(struct fsl_mc_device *mc_dev)
+static void dpaa2_ptp_remove(struct fsl_mc_device *mc_dev)
 {
 	struct device *dev = &mc_dev->dev;
 	struct ptp_qoriq *ptp_qoriq;
···
 	fsl_mc_free_irqs(mc_dev);
 	dprtc_close(mc_dev->mc_io, 0, mc_dev->mc_handle);
 	fsl_mc_portal_free(mc_dev->mc_io);
-
-	return 0;
 }
 
 static const struct fsl_mc_device_id dpaa2_ptp_match_id_table[] = {

drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c

···
 		dev_warn(dev, "dpsw_close err %d\n", err);
 }
 
-static int dpaa2_switch_remove(struct fsl_mc_device *sw_dev)
+static void dpaa2_switch_remove(struct fsl_mc_device *sw_dev)
 {
 	struct ethsw_port_priv *port_priv;
 	struct ethsw_core *ethsw;
···
 	kfree(ethsw);
 
 	dev_set_drvdata(dev, NULL);
-
-	return 0;
 }
 
 static int dpaa2_switch_probe_port(struct ethsw_core *ethsw,

drivers/pci/controller/dwc/pcie-tegra194.c

···
 #include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
+#include <linux/interconnect.h>
 #include <linux/interrupt.h>
 #include <linux/iopoll.h>
 #include <linux/kernel.h>
···
 #define EP_STATE_ENABLED	1
 
 static const unsigned int pcie_gen_freq[] = {
+	GEN1_CORE_CLK_FREQ,	/* PCI_EXP_LNKSTA_CLS == 0; undefined */
 	GEN1_CORE_CLK_FREQ,
 	GEN2_CORE_CLK_FREQ,
 	GEN3_CORE_CLK_FREQ,
···
 	unsigned int pex_rst_irq;
 	int ep_state;
 	long link_status;
+	struct icc_path *icc_path;
 };
 
 static inline struct tegra_pcie_dw *to_tegra_pcie(struct dw_pcie *pci)
···
 struct tegra_pcie_soc {
 	enum dw_pcie_device_mode mode;
 };
+
+static void tegra_pcie_icc_set(struct tegra_pcie_dw *pcie)
+{
+	struct dw_pcie *pci = &pcie->pci;
+	u32 val, speed, width;
+
+	val = dw_pcie_readw_dbi(pci, pcie->pcie_cap_base + PCI_EXP_LNKSTA);
+
+	speed = FIELD_GET(PCI_EXP_LNKSTA_CLS, val);
+	width = FIELD_GET(PCI_EXP_LNKSTA_NLW, val);
+
+	val = width * (PCIE_SPEED2MBS_ENC(pcie_link_speed[speed]) / BITS_PER_BYTE);
+
+	if (icc_set_bw(pcie->icc_path, MBps_to_icc(val), 0))
+		dev_err(pcie->dev, "can't set bw[%u]\n", val);
+
+	if (speed >= ARRAY_SIZE(pcie_gen_freq))
+		speed = 0;
+
+	clk_set_rate(pcie->core_clk, pcie_gen_freq[speed]);
+}
 
 static void apply_bad_link_workaround(struct dw_pcie_rp *pp)
 {
···
 	struct tegra_pcie_dw *pcie = arg;
 	struct dw_pcie_ep *ep = &pcie->pci.ep;
 	struct dw_pcie *pci = &pcie->pci;
-	u32 val, speed;
+	u32 val;
 
 	if (test_and_clear_bit(0, &pcie->link_status))
 		dw_pcie_ep_linkup(ep);
 
-	speed = dw_pcie_readw_dbi(pci, pcie->pcie_cap_base + PCI_EXP_LNKSTA) &
-		PCI_EXP_LNKSTA_CLS;
-	clk_set_rate(pcie->core_clk, pcie_gen_freq[speed - 1]);
+	tegra_pcie_icc_set(pcie);
 
 	if (pcie->of_data->has_ltr_req_fix)
 		return IRQ_HANDLED;
···
 
 static int tegra_pcie_dw_start_link(struct dw_pcie *pci)
 {
-	u32 val, offset, speed, tmp;
 	struct tegra_pcie_dw *pcie = to_tegra_pcie(pci);
 	struct dw_pcie_rp *pp = &pci->pp;
+	u32 val, offset, tmp;
 	bool retry = true;
 
 	if (pcie->of_data->mode == DW_PCIE_EP_TYPE) {
···
 		goto retry_link;
 	}
 
-	speed = dw_pcie_readw_dbi(pci, pcie->pcie_cap_base + PCI_EXP_LNKSTA) &
-		PCI_EXP_LNKSTA_CLS;
-	clk_set_rate(pcie->core_clk, pcie_gen_freq[speed - 1]);
+	tegra_pcie_icc_set(pcie);
 
 	tegra_pcie_enable_interrupts(pp);
 
···
 		return PTR_ERR(pcie->bpmp);
 
 	platform_set_drvdata(pdev, pcie);
+
+	pcie->icc_path = devm_of_icc_get(&pdev->dev, "write");
+	ret = PTR_ERR_OR_ZERO(pcie->icc_path);
+	if (ret) {
+		tegra_bpmp_put(pcie->bpmp);
+		dev_err_probe(&pdev->dev, ret, "failed to get write interconnect\n");
+		return ret;
+	}
 
 	switch (pcie->of_data->mode) {
 	case DW_PCIE_RC_TYPE:

drivers/powercap/arm_scmi_powercap.c

···
 	return 0;
 }
 
+static int scmi_powercap_zone_enable_set(struct powercap_zone *pz, bool mode)
+{
+	struct scmi_powercap_zone *spz = to_scmi_powercap_zone(pz);
+
+	return powercap_ops->cap_enable_set(spz->ph, spz->info->id, mode);
+}
+
+static int scmi_powercap_zone_enable_get(struct powercap_zone *pz, bool *mode)
+{
+	struct scmi_powercap_zone *spz = to_scmi_powercap_zone(pz);
+
+	return powercap_ops->cap_enable_get(spz->ph, spz->info->id, mode);
+}
+
 static const struct powercap_zone_ops zone_ops = {
 	.get_max_power_range_uw = scmi_powercap_get_max_power_range_uw,
 	.get_power_uw = scmi_powercap_get_power_uw,
 	.release = scmi_powercap_zone_release,
+	.set_enable = scmi_powercap_zone_enable_set,
+	.get_enable = scmi_powercap_zone_enable_get,
 };
 
 static void scmi_powercap_normalize_cap(const struct scmi_powercap_zone *spz,

drivers/remoteproc/pru_rproc.c

···
 };
 
 /**
- * enum pru_type - PRU core type identifier
- *
- * @PRU_TYPE_PRU: Programmable Real-time Unit
- * @PRU_TYPE_RTU: Auxiliary Programmable Real-Time Unit
- * @PRU_TYPE_TX_PRU: Transmit Programmable Real-Time Unit
- * @PRU_TYPE_MAX: just keep this one at the end
- */
-enum pru_type {
-	PRU_TYPE_PRU = 0,
-	PRU_TYPE_RTU,
-	PRU_TYPE_TX_PRU,
-	PRU_TYPE_MAX,
-};
-
-/**
  * struct pru_private_data - device data for a PRU core
  * @type: type of the PRU core (PRU, RTU, Tx_PRU)
  * @is_k3: flag used to identify the need for special load handling

drivers/reset/Kconfig

···
 	help
 	  This enables the reset controller driver for Nuvoton MA35D1 SoC.
 
-config RESET_OXNAS
-	bool
-
 config RESET_PISTACHIO
 	bool "Pistachio Reset Driver"
 	depends on MIPS || COMPILE_TEST
···
 
 config RESET_POLARFIRE_SOC
 	bool "Microchip PolarFire SoC (MPFS) Reset Driver"
-	depends on AUXILIARY_BUS && MCHP_CLK_MPFS
+	depends on MCHP_CLK_MPFS
+	select AUXILIARY_BUS
 	default MCHP_CLK_MPFS
 	help
 	  This driver supports peripheral reset for the Microchip PolarFire SoC

drivers/reset/Makefile

···
 obj-$(CONFIG_RESET_MESON_AUDIO_ARB) += reset-meson-audio-arb.o
 obj-$(CONFIG_RESET_NPCM) += reset-npcm.o
 obj-$(CONFIG_RESET_NUVOTON_MA35D1) += reset-ma35d1.o
-obj-$(CONFIG_RESET_OXNAS) += reset-oxnas.o
 obj-$(CONFIG_RESET_PISTACHIO) += reset-pistachio.o
 obj-$(CONFIG_RESET_POLARFIRE_SOC) += reset-mpfs.o
 obj-$(CONFIG_RESET_QCOM_AOSS) += reset-qcom-aoss.o

drivers/reset/reset-ath79.c

···
 static int ath79_reset_probe(struct platform_device *pdev)
 {
 	struct ath79_reset *ath79_reset;
-	struct resource *res;
 	int err;
 
 	ath79_reset = devm_kzalloc(&pdev->dev,
···
 
 	platform_set_drvdata(pdev, ath79_reset);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	ath79_reset->base = devm_ioremap_resource(&pdev->dev, res);
+	ath79_reset->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(ath79_reset->base))
 		return PTR_ERR(ath79_reset->base);
 

drivers/reset/reset-axs10x.c

···
 static int axs10x_reset_probe(struct platform_device *pdev)
 {
 	struct axs10x_rst *rst;
-	struct resource *mem;
 
 	rst = devm_kzalloc(&pdev->dev, sizeof(*rst), GFP_KERNEL);
 	if (!rst)
 		return -ENOMEM;
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	rst->regs_rst = devm_ioremap_resource(&pdev->dev, mem);
+	rst->regs_rst = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(rst->regs_rst))
 		return PTR_ERR(rst->regs_rst);
 

drivers/reset/reset-brcmstb-rescal.c

···
 static int brcm_rescal_reset_probe(struct platform_device *pdev)
 {
 	struct brcm_rescal_reset *data;
-	struct resource *res;
 
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	data->base = devm_ioremap_resource(&pdev->dev, res);
+	data->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(data->base))
 		return PTR_ERR(data->base);
 

drivers/reset/reset-hsdk.c

···
 static int hsdk_reset_probe(struct platform_device *pdev)
 {
 	struct hsdk_rst *rst;
-	struct resource *mem;
 
 	rst = devm_kzalloc(&pdev->dev, sizeof(*rst), GFP_KERNEL);
 	if (!rst)
 		return -ENOMEM;
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	rst->regs_ctl = devm_ioremap_resource(&pdev->dev, mem);
+	rst->regs_ctl = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(rst->regs_ctl))
 		return PTR_ERR(rst->regs_ctl);
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	rst->regs_rst = devm_ioremap_resource(&pdev->dev, mem);
+	rst->regs_rst = devm_platform_ioremap_resource(pdev, 1);
 	if (IS_ERR(rst->regs_rst))
 		return PTR_ERR(rst->regs_rst);
 

drivers/reset/reset-lpc18xx.c

···
 static int lpc18xx_rgu_probe(struct platform_device *pdev)
 {
 	struct lpc18xx_rgu_data *rc;
-	struct resource *res;
 	u32 fcclk, firc;
 	int ret;
 
···
 	if (!rc)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	rc->base = devm_ioremap_resource(&pdev->dev, res);
+	rc->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(rc->base))
 		return PTR_ERR(rc->base);
 

drivers/reset/reset-meson-audio-arb.c

···
 	platform_set_drvdata(pdev, arb);
 
 	arb->clk = devm_clk_get(dev, NULL);
-	if (IS_ERR(arb->clk)) {
-		if (PTR_ERR(arb->clk) != -EPROBE_DEFER)
-			dev_err(dev, "failed to get clock\n");
-		return PTR_ERR(arb->clk);
-	}
+	if (IS_ERR(arb->clk))
+		return dev_err_probe(dev, PTR_ERR(arb->clk), "failed to get clock\n");
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	arb->regs = devm_ioremap_resource(dev, res);

drivers/reset/reset-meson.c

···
 static int meson_reset_probe(struct platform_device *pdev)
 {
 	struct meson_reset *data;
-	struct resource *res;
 
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	data->reg_base = devm_ioremap_resource(&pdev->dev, res);
+	data->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(data->reg_base))
 		return PTR_ERR(data->reg_base);
 

drivers/reset/reset-oxnas.c

···
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Oxford Semiconductor Reset Controller driver
- *
- * Copyright (C) 2016 Neil Armstrong <[e-mail]>
- * Copyright (C) 2014 Ma Haijun <[e-mail]>
- * Copyright (C) 2009 Oxford Semiconductor Ltd
- */
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/reset-controller.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/types.h>
-#include <linux/regmap.h>
-#include <linux/mfd/syscon.h>
-
-/* Regmap offsets */
-#define RST_SET_REGOFFSET	0x34
-#define RST_CLR_REGOFFSET	0x38
-
-struct oxnas_reset {
-	struct regmap *regmap;
-	struct reset_controller_dev rcdev;
-};
-
-static int oxnas_reset_reset(struct reset_controller_dev *rcdev,
-			      unsigned long id)
-{
-	struct oxnas_reset *data =
-		container_of(rcdev, struct oxnas_reset, rcdev);
-
-	regmap_write(data->regmap, RST_SET_REGOFFSET, BIT(id));
-	msleep(50);
-	regmap_write(data->regmap, RST_CLR_REGOFFSET, BIT(id));
-
-	return 0;
-}
-
-static int oxnas_reset_assert(struct reset_controller_dev *rcdev,
-			      unsigned long id)
-{
-	struct oxnas_reset *data =
-		container_of(rcdev, struct oxnas_reset, rcdev);
-
-	regmap_write(data->regmap, RST_SET_REGOFFSET, BIT(id));
-
-	return 0;
-}
-
-static int oxnas_reset_deassert(struct reset_controller_dev *rcdev,
-				unsigned long id)
-{
-	struct oxnas_reset *data =
-		container_of(rcdev, struct oxnas_reset, rcdev);
-
-	regmap_write(data->regmap, RST_CLR_REGOFFSET, BIT(id));
-
-	return 0;
-}
-
-static const struct reset_control_ops oxnas_reset_ops = {
-	.reset		= oxnas_reset_reset,
-	.assert		= oxnas_reset_assert,
-	.deassert	= oxnas_reset_deassert,
-};
-
-static const struct of_device_id oxnas_reset_dt_ids[] = {
-	 { .compatible = "oxsemi,ox810se-reset", },
-	 { .compatible = "oxsemi,ox820-reset", },
-	 { /* sentinel */ },
-};
-
-static int oxnas_reset_probe(struct platform_device *pdev)
-{
-	struct oxnas_reset *data;
-	struct device *parent;
-
-	parent = pdev->dev.parent;
-	if (!parent) {
-		dev_err(&pdev->dev, "no parent\n");
-		return -ENODEV;
-	}
-
-	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	data->regmap = syscon_node_to_regmap(parent->of_node);
-	if (IS_ERR(data->regmap)) {
-		dev_err(&pdev->dev, "failed to get parent regmap\n");
-		return PTR_ERR(data->regmap);
-	}
-
-	platform_set_drvdata(pdev, data);
-
-	data->rcdev.owner = THIS_MODULE;
-	data->rcdev.nr_resets = 32;
-	data->rcdev.ops = &oxnas_reset_ops;
-	data->rcdev.of_node = pdev->dev.of_node;
-
-	return devm_reset_controller_register(&pdev->dev, &data->rcdev);
-}
-
-static struct platform_driver oxnas_reset_driver = {
-	.probe	= oxnas_reset_probe,
-	.driver = {
-		.name		= "oxnas-reset",
-		.of_match_table	= oxnas_reset_dt_ids,
-	},
-};
-builtin_platform_driver(oxnas_reset_driver);

drivers/reset/starfive/Kconfig

···
 
 config RESET_STARFIVE_JH7110
 	bool "StarFive JH7110 Reset Driver"
-	depends on AUXILIARY_BUS && CLK_STARFIVE_JH7110_SYS
+	depends on CLK_STARFIVE_JH7110_SYS
+	select AUXILIARY_BUS
 	select RESET_STARFIVE_JH71X0
 	default ARCH_STARFIVE
 	help

drivers/reset/sti/Kconfig

···
 # SPDX-License-Identifier: GPL-2.0-only
 if ARCH_STI
 
-config STI_RESET_SYSCFG
-	bool
-
 config STIH407_RESET
 	bool
-	select STI_RESET_SYSCFG
 
 endif

drivers/reset/sti/Makefile

···
 # SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_STI_RESET_SYSCFG) += reset-syscfg.o
-
-obj-$(CONFIG_STIH407_RESET) += reset-stih407.o
+obj-$(CONFIG_STIH407_RESET) += reset-stih407.o reset-syscfg.o

drivers/reset/sti/reset-syscfg.c

···
 		return err;
 
 	if (ch->ack) {
-		unsigned long timeout = jiffies + msecs_to_jiffies(1000);
 		u32 ack_val;
 
-		while (true) {
-			err = regmap_field_read(ch->ack, &ack_val);
-			if (err)
-				return err;
-
-			if (ack_val == ctrl_val)
-				break;
-
-			if (time_after(jiffies, timeout))
-				return -ETIME;
-
-			cpu_relax();
-		}
+		err = regmap_field_read_poll_timeout(ch->ack, ack_val, (ack_val == ctrl_val),
+						     100, USEC_PER_SEC);
+		if (err)
+			return err;
 	}
 
 	return 0;

drivers/soc/amlogic/meson-secure-pwrc.c

···
 	SEC_PD(ACODEC,	0),
 	SEC_PD(AUDIO,	0),
 	SEC_PD(OTP,	0),
-	SEC_PD(DMA,	0),
+	SEC_PD(DMA,	GENPD_FLAG_ALWAYS_ON | GENPD_FLAG_IRQ_SAFE),
 	SEC_PD(SD_EMMC,	0),
 	SEC_PD(RAMA,	0),
 	/* SRAMB is used as ATF runtime memory, and should be always on */

drivers/soc/fsl/dpio/dpio-driver.c

···
 	fsl_mc_free_irqs(dpio_dev);
 }
 
-static int dpaa2_dpio_remove(struct fsl_mc_device *dpio_dev)
+static void dpaa2_dpio_remove(struct fsl_mc_device *dpio_dev)
 {
 	struct device *dev;
 	struct dpio_priv *priv;
···
 
 	dpio_close(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
 
-	fsl_mc_portal_free(dpio_dev->mc_io);
-
-	return 0;
-
 err_open:
 	fsl_mc_portal_free(dpio_dev->mc_io);
-
-	return err;
 }
 
 static const struct fsl_mc_device_id dpaa2_dpio_match_id_table[] = {

drivers/soc/fsl/qe/Kconfig

···
 
 config QE_USB
 	bool
+	depends on QUICC_ENGINE
 	default y if USB_FSL_QE
 	help
 	  QE USB Controller support

drivers/soc/mediatek/mtk-mutex.c

···
 	.probe		= mtk_mutex_probe,
 	.driver		= {
 		.name	= "mediatek-mutex",
-		.owner	= THIS_MODULE,
 		.of_match_table = mutex_driver_dt_match,
 	},
 };

drivers/soc/mediatek/mtk-pmic-wrap.c

···
 
 /* macro for device wrapper default value */
 #define PWRAP_DEW_READ_TEST_VAL		0x5aa5
+#define PWRAP_DEW_COMP_READ_TEST_VAL	0xa55a
 #define PWRAP_DEW_WRITE_TEST_VAL	0xa55a
 
 /* macro for manual command */
···
 	[PWRAP_DEW_CIPHER_MODE] =	0x01a0,
 	[PWRAP_DEW_CIPHER_SWRST] =	0x01a2,
 	[PWRAP_DEW_RDDMY_NO] =		0x01a4,
+};
+
+static const u32 mt6331_regs[] = {
+	[PWRAP_DEW_DIO_EN] =		0x018c,
+	[PWRAP_DEW_READ_TEST] =		0x018e,
+	[PWRAP_DEW_WRITE_TEST] =	0x0190,
+	[PWRAP_DEW_CRC_SWRST] =		0x0192,
+	[PWRAP_DEW_CRC_EN] =		0x0194,
+	[PWRAP_DEW_CRC_VAL] =		0x0196,
+	[PWRAP_DEW_MON_GRP_SEL] =	0x0198,
+	[PWRAP_DEW_CIPHER_KEY_SEL] =	0x019a,
+	[PWRAP_DEW_CIPHER_IV_SEL] =	0x019c,
+	[PWRAP_DEW_CIPHER_EN] =		0x019e,
+	[PWRAP_DEW_CIPHER_RDY] =	0x01a0,
+	[PWRAP_DEW_CIPHER_MODE] =	0x01a2,
+	[PWRAP_DEW_CIPHER_SWRST] =	0x01a4,
+	[PWRAP_DEW_RDDMY_NO] =		0x01a6,
+};
+
+static const u32 mt6332_regs[] = {
+	[PWRAP_DEW_DIO_EN] =		0x80f6,
+	[PWRAP_DEW_READ_TEST] =		0x80f8,
+	[PWRAP_DEW_WRITE_TEST] =	0x80fa,
+	[PWRAP_DEW_CRC_SWRST] =		0x80fc,
+	[PWRAP_DEW_CRC_EN] =		0x80fe,
+	[PWRAP_DEW_CRC_VAL] =		0x8100,
+	[PWRAP_DEW_MON_GRP_SEL] =	0x8102,
+	[PWRAP_DEW_CIPHER_KEY_SEL] =	0x8104,
+	[PWRAP_DEW_CIPHER_IV_SEL] =	0x8106,
+	[PWRAP_DEW_CIPHER_EN] =		0x8108,
+	[PWRAP_DEW_CIPHER_RDY] =	0x810a,
+	[PWRAP_DEW_CIPHER_MODE] =	0x810c,
+	[PWRAP_DEW_CIPHER_SWRST] =	0x810e,
+	[PWRAP_DEW_RDDMY_NO] =		0x8110,
 };
 
 static const u32 mt6351_regs[] = {
···
 	[PWRAP_WACS2_CMD] =		0xC20,
 	[PWRAP_WACS2_RDATA] =		0xC24,
 	[PWRAP_WACS2_VLDCLR] =		0xC28,
+};
+
+static int mt6795_regs[] = {
+	[PWRAP_MUX_SEL] =		0x0,
+	[PWRAP_WRAP_EN] =		0x4,
+	[PWRAP_DIO_EN] =		0x8,
+	[PWRAP_SIDLY] =			0xc,
+	[PWRAP_RDDMY] =			0x10,
+	[PWRAP_SI_CK_CON] =		0x14,
+	[PWRAP_CSHEXT_WRITE] =		0x18,
+	[PWRAP_CSHEXT_READ] =		0x1c,
+	[PWRAP_CSLEXT_START] =		0x20,
+	[PWRAP_CSLEXT_END] =		0x24,
+	[PWRAP_STAUPD_PRD] =		0x28,
+	[PWRAP_STAUPD_GRPEN] =		0x2c,
+	[PWRAP_EINT_STA0_ADR] =		0x30,
+	[PWRAP_EINT_STA1_ADR] =		0x34,
+	[PWRAP_STAUPD_MAN_TRIG] =	0x40,
+	[PWRAP_STAUPD_STA] =		0x44,
+	[PWRAP_WRAP_STA] =		0x48,
+	[PWRAP_HARB_INIT] =		0x4c,
+	[PWRAP_HARB_HPRIO] =		0x50,
+	[PWRAP_HIPRIO_ARB_EN] =		0x54,
+	[PWRAP_HARB_STA0] =		0x58,
+	[PWRAP_HARB_STA1] =		0x5c,
+	[PWRAP_MAN_EN] =		0x60,
+	[PWRAP_MAN_CMD] =		0x64,
+	[PWRAP_MAN_RDATA] =		0x68,
+	[PWRAP_MAN_VLDCLR] =		0x6c,
+	[PWRAP_WACS0_EN] =		0x70,
+	[PWRAP_INIT_DONE0] =		0x74,
+	[PWRAP_WACS0_CMD] =		0x78,
+	[PWRAP_WACS0_RDATA] =		0x7c,
+	[PWRAP_WACS0_VLDCLR] =		0x80,
+	[PWRAP_WACS1_EN] =		0x84,
+	[PWRAP_INIT_DONE1] =		0x88,
+	[PWRAP_WACS1_CMD] =		0x8c,
+	[PWRAP_WACS1_RDATA] =		0x90,
+	[PWRAP_WACS1_VLDCLR] =		0x94,
+	[PWRAP_WACS2_EN] =		0x98,
+	[PWRAP_INIT_DONE2] =		0x9c,
+	[PWRAP_WACS2_CMD] =		0xa0,
+	[PWRAP_WACS2_RDATA] =		0xa4,
+	[PWRAP_WACS2_VLDCLR] =		0xa8,
+	[PWRAP_INT_EN] =		0xac,
+	[PWRAP_INT_FLG_RAW] =		0xb0,
+	[PWRAP_INT_FLG] =		0xb4,
+	[PWRAP_INT_CLR] =		0xb8,
+	[PWRAP_SIG_ADR] =		0xbc,
+	[PWRAP_SIG_MODE] =		0xc0,
+	[PWRAP_SIG_VALUE] =		0xc4,
+	[PWRAP_SIG_ERRVAL] =		0xc8,
+	[PWRAP_CRC_EN] =		0xcc,
+	[PWRAP_TIMER_EN] =		0xd0,
+	[PWRAP_TIMER_STA] =		0xd4,
+	[PWRAP_WDT_UNIT] =		0xd8,
+	[PWRAP_WDT_SRC_EN] =		0xdc,
+	[PWRAP_WDT_FLG] =		0xe0,
+	[PWRAP_DEBUG_INT_SEL] =		0xe4,
+	[PWRAP_DVFS_ADR0] =		0xe8,
+	[PWRAP_DVFS_WDATA0] =		0xec,
+	[PWRAP_DVFS_ADR1] =		0xf0,
+	[PWRAP_DVFS_WDATA1] =		0xf4,
+	[PWRAP_DVFS_ADR2] =		0xf8,
+	[PWRAP_DVFS_WDATA2] =		0xfc,
+	[PWRAP_DVFS_ADR3] =		0x100,
+	[PWRAP_DVFS_WDATA3] =		0x104,
+	[PWRAP_DVFS_ADR4] =		0x108,
+	[PWRAP_DVFS_WDATA4] =		0x10c,
+	[PWRAP_DVFS_ADR5] =		0x110,
+	[PWRAP_DVFS_WDATA5] =		0x114,
+	[PWRAP_DVFS_ADR6] =		0x118,
+	[PWRAP_DVFS_WDATA6] =		0x11c,
+	[PWRAP_DVFS_ADR7] =		0x120,
+	[PWRAP_DVFS_WDATA7] =		0x124,
+	[PWRAP_SPMINF_STA] =		0x128,
+	[PWRAP_CIPHER_KEY_SEL] =	0x12c,
+	[PWRAP_CIPHER_IV_SEL] =		0x130,
+	[PWRAP_CIPHER_EN] =		0x134,
+	[PWRAP_CIPHER_RDY] =		0x138,
+	[PWRAP_CIPHER_MODE] =		0x13c,
+	[PWRAP_CIPHER_SWRST] =		0x140,
+	[PWRAP_DCM_EN] =		0x144,
+	[PWRAP_DCM_DBC_PRD] =		0x148,
+	[PWRAP_EXT_CK] =		0x14c,
 };
 
 static int mt6797_regs[] = {
···
 
 enum pmic_type {
 	PMIC_MT6323,
+	PMIC_MT6331,
+	PMIC_MT6332,
 	PMIC_MT6351,
 	PMIC_MT6357,
 	PMIC_MT6358,
···
 	PWRAP_MT2701,
 	PWRAP_MT6765,
 	PWRAP_MT6779,
+	PWRAP_MT6795,
 	PWRAP_MT6797,
 	PWRAP_MT6873,
 	PWRAP_MT7622,
···
 	int (*pwrap_write)(struct pmic_wrapper *wrp, u32 adr, u32 wdata);
 };
 
+/**
+ * struct pwrap_slv_type - PMIC device wrapper definitions
+ * @dew_regs:      Device Wrapper (DeW) register offsets
+ * @type:          PMIC Type (model)
+ * @comp_dew_regs: Device Wrapper (DeW) register offsets for companion device
+ * @comp_type:     Companion PMIC Type (model)
+ * @regops:        Register R/W ops
+ * @caps:          Capability flags for the target device
+ */
 struct pwrap_slv_type {
 	const u32 *dew_regs;
 	enum pmic_type type;
+	const u32 *comp_dew_regs;
+	enum pmic_type comp_type;
 	const struct pwrap_slv_regops *regops;
-	/* Flags indicating the capability for the target slave */
 	u32 caps;
 };
 
···
 	return pwrap_write(context, adr, wdata);
 }
 
+static bool pwrap_pmic_read_test(struct pmic_wrapper *wrp, const u32 *dew_regs,
+				 u16 read_test_val)
+{
+	bool is_success;
+	u32 rdata;
+
+	pwrap_read(wrp, dew_regs[PWRAP_DEW_READ_TEST], &rdata);
+	is_success = ((rdata & U16_MAX) == read_test_val);
+
+	return is_success;
+}
+
 static int pwrap_reset_spislave(struct pmic_wrapper *wrp)
 {
 	bool tmp;
···
  */
 static int pwrap_init_sidly(struct pmic_wrapper *wrp)
 {
-	u32 rdata;
 	u32 i;
 	u32 pass = 0;
+	bool read_ok;
 	signed char dly[16] = {
 		-1, 0, 1, 0, 2, -1, 1, 1, 3, -1, -1, -1, 3, -1, 2, 1
 	};
 
 	for (i = 0; i < 4; i++) {
 		pwrap_writel(wrp, i, PWRAP_SIDLY);
-		pwrap_read(wrp, wrp->slave->dew_regs[PWRAP_DEW_READ_TEST],
-			   &rdata);
-		if (rdata == PWRAP_DEW_READ_TEST_VAL) {
+		read_ok = pwrap_pmic_read_test(wrp, wrp->slave->dew_regs,
+					       PWRAP_DEW_READ_TEST_VAL);
+		if (read_ok) {
 			dev_dbg(wrp->dev, "[Read Test] pass, SIDLY=%x\n", i);
 			pass |= 1 << i;
 		}
···
 static int pwrap_init_dual_io(struct pmic_wrapper *wrp)
 {
 	int ret;
-	bool tmp;
-	u32 rdata;
+	bool read_ok, tmp;
+	bool comp_read_ok = true;
 
 	/* Enable dual IO mode */
 	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_DIO_EN], 1);
+	if (wrp->slave->comp_dew_regs)
+		pwrap_write(wrp, wrp->slave->comp_dew_regs[PWRAP_DEW_DIO_EN], 1);
 
 	/* Check IDLE & INIT_DONE in advance */
 	ret = readx_poll_timeout(pwrap_is_fsm_idle_and_sync_idle, wrp, tmp, tmp,
···
 	pwrap_writel(wrp, 1, PWRAP_DIO_EN);
 
 	/* Read Test */
-	pwrap_read(wrp,
-		   wrp->slave->dew_regs[PWRAP_DEW_READ_TEST], &rdata);
-	if (rdata != PWRAP_DEW_READ_TEST_VAL) {
-		dev_err(wrp->dev,
-			"Read failed on DIO mode: 0x%04x!=0x%04x\n",
-			PWRAP_DEW_READ_TEST_VAL, rdata);
+	read_ok = pwrap_pmic_read_test(wrp, wrp->slave->dew_regs, PWRAP_DEW_READ_TEST_VAL);
+	if (wrp->slave->comp_dew_regs)
+		comp_read_ok = pwrap_pmic_read_test(wrp, wrp->slave->comp_dew_regs,
+						    PWRAP_DEW_COMP_READ_TEST_VAL);
+	if (!read_ok || !comp_read_ok) {
+		dev_err(wrp->dev, "Read failed on DIO mode. Main PMIC %s%s\n",
+			!read_ok ? "fail" : "success",
+			wrp->slave->comp_dew_regs && !comp_read_ok ?
+			", Companion PMIC fail" : "");
 		return -EFAULT;
 	}
 
···
 static int pwrap_common_init_reg_clock(struct pmic_wrapper *wrp)
 {
 	switch (wrp->master->type) {
+	case PWRAP_MT6795:
+		if (wrp->slave->type == PMIC_MT6331) {
+			const u32 *dew_regs = wrp->slave->dew_regs;
+
+			pwrap_write(wrp, dew_regs[PWRAP_DEW_RDDMY_NO], 0x8);
+
+			if (wrp->slave->comp_type == PMIC_MT6332) {
+				dew_regs = wrp->slave->comp_dew_regs;
+				pwrap_write(wrp, dew_regs[PWRAP_DEW_RDDMY_NO], 0x8);
+			}
+		}
+		pwrap_writel(wrp, 0x88, PWRAP_RDDMY);
+		pwrap_init_chip_select_ext(wrp, 15, 15, 15, 15);
+		break;
 	case PWRAP_MT8173:
 		pwrap_init_chip_select_ext(wrp, 0, 4, 2, 2);
 		break;
···
 	return pwrap_readl(wrp, PWRAP_CIPHER_RDY) & 1;
 }
 
-static bool pwrap_is_pmic_cipher_ready(struct pmic_wrapper *wrp)
+static bool __pwrap_is_pmic_cipher_ready(struct pmic_wrapper *wrp, const u32 *dew_regs)
 {
 	u32 rdata;
 	int ret;
 
-	ret = pwrap_read(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_RDY],
-			 &rdata);
+	ret = pwrap_read(wrp, dew_regs[PWRAP_DEW_CIPHER_RDY], &rdata);
 	if (ret)
 		return false;
 
 	return rdata == 1;
+}
+
+
+static bool pwrap_is_pmic_cipher_ready(struct pmic_wrapper *wrp)
+{
+	bool ret = __pwrap_is_pmic_cipher_ready(wrp, wrp->slave->dew_regs);
+
+	if (!ret)
+		return ret;
+
+	/* If there's any companion, wait for it to be ready too */
+	if (wrp->slave->comp_dew_regs)
+		ret = __pwrap_is_pmic_cipher_ready(wrp, wrp->slave->comp_dew_regs);
+
+	return ret;
+}
+
+static void pwrap_config_cipher(struct pmic_wrapper *wrp, const u32 *dew_regs)
+{
+	pwrap_write(wrp, dew_regs[PWRAP_DEW_CIPHER_SWRST], 0x1);
+	pwrap_write(wrp, dew_regs[PWRAP_DEW_CIPHER_SWRST], 0x0);
+	pwrap_write(wrp, dew_regs[PWRAP_DEW_CIPHER_KEY_SEL], 0x1);
+	pwrap_write(wrp, dew_regs[PWRAP_DEW_CIPHER_IV_SEL], 0x2);
 }
 
 static int pwrap_init_cipher(struct pmic_wrapper *wrp)
···
 	case PWRAP_MT2701:
 	case PWRAP_MT6765:
 	case PWRAP_MT6779:
+	case PWRAP_MT6795:
 	case PWRAP_MT6797:
 	case PWRAP_MT8173:
 	case PWRAP_MT8186:
···
 	}
 
 	/* Config cipher mode @PMIC */
-	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_SWRST], 0x1);
-	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_SWRST], 0x0);
-	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_KEY_SEL], 0x1);
-	pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CIPHER_IV_SEL], 0x2);
+	pwrap_config_cipher(wrp, wrp->slave->dew_regs);
+
+	/* If there is any companion PMIC, configure cipher mode there too */
+	if (wrp->slave->comp_type > 0)
+		pwrap_config_cipher(wrp, wrp->slave->comp_dew_regs);
 
 	switch (wrp->slave->type) {
 	case PMIC_MT6397:
···
 
 static int pwrap_init_security(struct pmic_wrapper *wrp)
 {
+	u32 crc_val;
 	int ret;
 
 	/* Enable encryption */
···
 		return ret;
 
 	/* Signature checking - using CRC */
-	if (pwrap_write(wrp,
-			wrp->slave->dew_regs[PWRAP_DEW_CRC_EN], 0x1))
-		return -EFAULT;
+	ret = pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_CRC_EN], 0x1);
+	if (ret == 0 && wrp->slave->comp_dew_regs)
+		ret = pwrap_write(wrp, wrp->slave->comp_dew_regs[PWRAP_DEW_CRC_EN], 0x1);
 
 	pwrap_writel(wrp, 0x1, PWRAP_CRC_EN);
 	pwrap_writel(wrp, 0x0, PWRAP_SIG_MODE);
-	pwrap_writel(wrp, wrp->slave->dew_regs[PWRAP_DEW_CRC_VAL],
-		     PWRAP_SIG_ADR);
+
+	/* CRC value */
+	crc_val = wrp->slave->dew_regs[PWRAP_DEW_CRC_VAL];
+	if (wrp->slave->comp_dew_regs)
+		crc_val |= wrp->slave->comp_dew_regs[PWRAP_DEW_CRC_VAL] << 16;
+
+	pwrap_writel(wrp, crc_val, PWRAP_SIG_ADR);
+
+	/* PMIC Wrapper Arbiter priority */
 	pwrap_writel(wrp,
 		     wrp->master->arb_en_all, PWRAP_HIPRIO_ARB_EN);
 
···
 	return 0;
 }
 
+static int pwrap_mt6795_init_soc_specific(struct pmic_wrapper *wrp)
+{
+	pwrap_writel(wrp, 0xf, PWRAP_STAUPD_GRPEN);
+
+	if (wrp->slave->type == PMIC_MT6331)
+		pwrap_writel(wrp, 0x1b4, PWRAP_EINT_STA0_ADR);
+
+	if (wrp->slave->comp_type == PMIC_MT6332)
+		pwrap_writel(wrp, 0x8112, PWRAP_EINT_STA1_ADR);
+
+	return 0;
+}
+
 static int pwrap_mt7622_init_soc_specific(struct pmic_wrapper *wrp)
 {
 	pwrap_writel(wrp, 0, PWRAP_STAUPD_PRD);
···
 	if (wrp->rstc_bridge)
 		reset_control_reset(wrp->rstc_bridge);
 
-	if (wrp->master->type == PWRAP_MT8173) {
+	switch (wrp->master->type) {
+	case PWRAP_MT6795:
+		fallthrough;
+	case PWRAP_MT8173:
 		/* Enable DCM */
 		pwrap_writel(wrp, 3, PWRAP_DCM_EN);
 		pwrap_writel(wrp, 0, PWRAP_DCM_DBC_PRD);
+		break;
+	default:
+		break;
 	}
 
 	if (HAS_CAP(wrp->slave->caps, PWRAP_SLV_CAP_SPI)) {
···
 		PWRAP_SLV_CAP_SECURITY,
 };
 
+static const struct pwrap_slv_type pmic_mt6331 = {
+	.dew_regs = mt6331_regs,
+	.type = PMIC_MT6331,
+	.comp_dew_regs = mt6332_regs,
+	.comp_type = PMIC_MT6332,
+	.regops = &pwrap_regops16,
+	.caps = PWRAP_SLV_CAP_SPI | PWRAP_SLV_CAP_DUALIO |
+		PWRAP_SLV_CAP_SECURITY,
+};
+
 static const struct pwrap_slv_type pmic_mt6351 = {
 	.dew_regs = mt6351_regs,
 	.type = PMIC_MT6351,
···
 
 static const struct of_device_id of_slave_match_tbl[] = {
 	{ .compatible = "mediatek,mt6323", .data = &pmic_mt6323 },
+	{ .compatible = "mediatek,mt6331", .data = &pmic_mt6331 },
 	{ .compatible = "mediatek,mt6351", .data = &pmic_mt6351 },
 	{ .compatible = "mediatek,mt6357", .data = &pmic_mt6357 },
 	{ .compatible = "mediatek,mt6358", .data = &pmic_mt6358 },
···
 	.caps = 0,
 	.init_reg_clock = pwrap_common_init_reg_clock,
 	.init_soc_specific = NULL,
+};
+
+static const struct pmic_wrapper_type pwrap_mt6795 = {
+	.regs = mt6795_regs,
+	.type = PWRAP_MT6795,
+	.arb_en_all = 0x3f,
+	.int_en_all = ~(u32)(BIT(31) | BIT(2) | BIT(1)),
+	.int1_en_all = 0,
+	.spi_w = PWRAP_MAN_CMD_SPI_WRITE,
+	.wdt_src = PWRAP_WDT_SRC_MASK_NO_STAUPD,
+	.caps = PWRAP_CAP_RESET | PWRAP_CAP_DCM,
+	.init_reg_clock = pwrap_common_init_reg_clock,
+	.init_soc_specific = pwrap_mt6795_init_soc_specific,
 };
 
 static const struct pmic_wrapper_type pwrap_mt6797 = {
···
 	{ .compatible = "mediatek,mt2701-pwrap", .data = &pwrap_mt2701 },
 	{ .compatible = "mediatek,mt6765-pwrap", .data = &pwrap_mt6765 },
 	{ .compatible = "mediatek,mt6779-pwrap", .data = &pwrap_mt6779 },
+	{ .compatible = "mediatek,mt6795-pwrap", .data = &pwrap_mt6795 },
 	{ .compatible = "mediatek,mt6797-pwrap", .data = &pwrap_mt6797 },
 	{ .compatible = "mediatek,mt6873-pwrap", .data = &pwrap_mt6873 },
 	{ .compatible = "mediatek,mt7622-pwrap", .data = &pwrap_mt7622 },

drivers/soc/mediatek/mtk-svs.c

···
 		svsb = &svsp->banks[idx];
 
 		if (svsb->type == SVSB_HIGH)
-			svsb->opp_dev = svs_add_device_link(svsp, "mali");
+			svsb->opp_dev = svs_add_device_link(svsp, "gpu");
 		else if (svsb->type == SVSB_LOW)
-			svsb->opp_dev = svs_get_subsys_device(svsp, "mali");
+			svsb->opp_dev = svs_get_subsys_device(svsp, "gpu");
 
 		if (IS_ERR(svsb->opp_dev))
 			return dev_err_probe(svsp->dev, PTR_ERR(svsb->opp_dev),

drivers/soc/qcom/Kconfig

···
 
 	  Say y here if you intend to boot the modem remoteproc.
 
+config QCOM_RPM_MASTER_STATS
+	tristate "Qualcomm RPM Master stats"
+	depends on ARCH_QCOM || COMPILE_TEST
+	help
+	  The RPM Master sleep stats driver provides detailed per-subsystem
+	  sleep/wake data, read from the RPM message RAM. It can be used to
+	  assess whether all the low-power modes available are entered as
+	  expected or to check which part of the SoC prevents it from sleeping.
+
+	  Say y here if you intend to debug or monitor platform sleep.
+
 config QCOM_RPMH
 	tristate "Qualcomm RPM-Hardened (RPMH) Communication"
 	depends on ARCH_QCOM || COMPILE_TEST

drivers/soc/qcom/Makefile

···
 qmi_helpers-y	+= qmi_encdec.o qmi_interface.o
 obj-$(CONFIG_QCOM_RAMP_CTRL)	+= ramp_controller.o
 obj-$(CONFIG_QCOM_RMTFS_MEM)	+= rmtfs_mem.o
+obj-$(CONFIG_QCOM_RPM_MASTER_STATS)	+= rpm_master_stats.o
 obj-$(CONFIG_QCOM_RPMH)		+= qcom_rpmh.o
 qcom_rpmh-y			+= rpmh-rsc.o
 qcom_rpmh-y			+= rpmh.o

drivers/soc/qcom/icc-bwmon.c

···
 
 static const struct icc_bwmon_data msm8998_bwmon_data = {
 	.sample_ms = 4,
-	.count_unit_kb = 64,
+	.count_unit_kb = 1024,
 	.default_highbw_kbps = 4800 * 1024, /* 4.8 GBps */
 	.default_medbw_kbps = 512 * 1024, /* 512 MBps */
 	.default_lowbw_kbps = 0,

drivers/soc/qcom/mdt_loader.c

···
 	const struct elf32_hdr *ehdr;
 	phys_addr_t min_addr = PHYS_ADDR_MAX;
 	phys_addr_t max_addr = 0;
+	bool relocate = false;
 	size_t metadata_len;
 	void *metadata;
 	int ret;
···
 
 		if (!mdt_phdr_valid(phdr))
 			continue;
+
+		if (phdr->p_flags & QCOM_MDT_RELOCATABLE)
+			relocate = true;
 
 		if (phdr->p_paddr < min_addr)
 			min_addr = phdr->p_paddr;
···
 		goto out;
 	}
 
-	ret = qcom_scm_pas_mem_setup(pas_id, mem_phys, max_addr - min_addr);
-	if (ret) {
-		/* Unable to set up relocation */
-		dev_err(dev, "error %d setting up firmware %s\n", ret, fw_name);
-		goto out;
+	if (relocate) {
+		ret = qcom_scm_pas_mem_setup(pas_id, mem_phys, max_addr - min_addr);
+		if (ret) {
+			/* Unable to set up relocation */
+			dev_err(dev, "error %d setting up firmware %s\n", ret, fw_name);
+			goto out;
+		}
 	}
 
 out:
 	return ret;
 }
 EXPORT_SYMBOL_GPL(qcom_mdt_pas_init);
+
+static bool qcom_mdt_bins_are_split(const struct firmware *fw, const char *fw_name)
+{
+	const struct elf32_phdr *phdrs;
+	const struct elf32_hdr *ehdr;
+	uint64_t seg_start, seg_end;
+	int i;
+
+	ehdr = (struct elf32_hdr *)fw->data;
+	phdrs = (struct elf32_phdr *)(ehdr + 1);
+
+	for (i = 0; i < ehdr->e_phnum; i++) {
+		/*
+		 * The size of the MDT file is not padded to include any
+		 * zero-sized segments at the end. Ignore these, as they should
+		 * not affect the decision about image being split or not.
+		 */
+		if (!phdrs[i].p_filesz)
+			continue;
+
+		seg_start = phdrs[i].p_offset;
+		seg_end = phdrs[i].p_offset + phdrs[i].p_filesz;
+		if (seg_start > fw->size || seg_end > fw->size)
+			return true;
+	}
+
+	return false;
+}
 
 static int __qcom_mdt_load(struct device *dev, const struct firmware *fw,
 			   const char *fw_name, int pas_id, void *mem_region,
···
 	phys_addr_t min_addr = PHYS_ADDR_MAX;
 	ssize_t offset;
 	bool relocate = false;
+	bool is_split;
 	void *ptr;
 	int ret = 0;
 	int i;
···
 	if (!fw || !mem_region || !mem_phys || !mem_size)
 		return -EINVAL;
 
+	is_split = qcom_mdt_bins_are_split(fw, fw_name);
 	ehdr = (struct elf32_hdr *)fw->data;
 	phdrs = (struct elf32_phdr *)(ehdr + 1);
 
···
 
 		ptr = mem_region + offset;
 
-		if (phdr->p_filesz && phdr->p_offset < fw->size &&
-		    phdr->p_offset + phdr->p_filesz <= fw->size) {
+		if (phdr->p_filesz && !is_split) {
 			/* Firmware is large enough to be non-split */
 			if (phdr->p_offset + phdr->p_filesz > fw->size) {
 				dev_err(dev, "file %s segment %d would be truncated\n",

drivers/soc/qcom/ocmem.c

···
 #define OCMEM_REG_GFX_MPU_START			0x00001004
 #define OCMEM_REG_GFX_MPU_END			0x00001008
 
+#define OCMEM_HW_VERSION_MAJOR(val)		FIELD_GET(GENMASK(31, 28), val)
+#define OCMEM_HW_VERSION_MINOR(val)		FIELD_GET(GENMASK(27, 16), val)
+#define OCMEM_HW_VERSION_STEP(val)		FIELD_GET(GENMASK(15, 0), val)
+
 #define OCMEM_HW_PROFILE_NUM_PORTS(val)		FIELD_PREP(0x0000000f, (val))
 #define OCMEM_HW_PROFILE_NUM_MACROS(val)	FIELD_PREP(0x00003f00, (val))
 
···
 			goto err_clk_disable;
 		}
 	}
+
+	reg = ocmem_read(ocmem, OCMEM_REG_HW_VERSION);
+	dev_dbg(dev, "OCMEM hardware version: %lu.%lu.%lu\n",
+		OCMEM_HW_VERSION_MAJOR(reg),
+		OCMEM_HW_VERSION_MINOR(reg),
+		OCMEM_HW_VERSION_STEP(reg));
 
 	reg = ocmem_read(ocmem, OCMEM_REG_HW_PROFILE);
 	ocmem->num_ports = OCMEM_HW_PROFILE_NUM_PORTS(reg);

drivers/soc/qcom/pmic_glink.c

···
 	return 0;
 }
 
-/* Do not handle altmode for now on those platforms */
 static const unsigned long pmic_glink_sm8450_client_mask = BIT(PMIC_GLINK_CLIENT_BATT) |
+							   BIT(PMIC_GLINK_CLIENT_ALTMODE) |
+							   BIT(PMIC_GLINK_CLIENT_UCSI);
+
+/* Do not handle altmode for now on those platforms */
+static const unsigned long pmic_glink_sm8550_client_mask = BIT(PMIC_GLINK_CLIENT_BATT) |
 							   BIT(PMIC_GLINK_CLIENT_UCSI);
 
 static const struct of_device_id pmic_glink_of_match[] = {
 	{ .compatible = "qcom,sm8450-pmic-glink", .data = &pmic_glink_sm8450_client_mask },
-	{ .compatible = "qcom,sm8550-pmic-glink", .data = &pmic_glink_sm8450_client_mask },
+	{ .compatible = "qcom,sm8550-pmic-glink", .data = &pmic_glink_sm8550_client_mask },
 	{ .compatible = "qcom,pmic-glink" },
 	{}
 };

drivers/soc/qcom/qcom-geni-se.c

···
 
 	geni_se_irq_clear(se);
 
-	/*
-	 * The RX path for the UART is asynchronous and so needs more
-	 * complex logic for enabling / disabling its interrupts.
-	 *
-	 * Specific notes:
-	 * - The done and TX-related interrupts are managed manually.
-	 * - We don't RX from the main sequencer (we use the secondary) so
-	 *   we don't need the RX-related interrupts enabled in the main
-	 *   sequencer for UART.
-	 */
+	/* UART driver manages enabling / disabling interrupts internally */
 	if (proto != GENI_SE_UART) {
+		/* Non-UART use only primary sequencer so dont bother about S_IRQ */
 		val_old = val = readl_relaxed(se->base + SE_GENI_M_IRQ_EN);
 		val |= M_CMD_DONE_EN | M_TX_FIFO_WATERMARK_EN;
 		val |= M_RX_FIFO_WATERMARK_EN | M_RX_FIFO_LAST_EN;
 		if (val != val_old)
 			writel_relaxed(val, se->base + SE_GENI_M_IRQ_EN);
-
-		val_old = val = readl_relaxed(se->base + SE_GENI_S_IRQ_EN);
-		val |= S_CMD_DONE_EN;
-		if (val != val_old)
-			writel_relaxed(val, se->base + SE_GENI_S_IRQ_EN);
 	}
 
 	val_old = val = readl_relaxed(se->base + SE_GENI_DMA_MODE_EN);
···
 
 	geni_se_irq_clear(se);
 
+	/* UART driver manages enabling / disabling interrupts internally */
 	if (proto != GENI_SE_UART) {
+		/* Non-UART use only primary sequencer so dont bother about S_IRQ */
 		val_old = val = readl_relaxed(se->base + SE_GENI_M_IRQ_EN);
 		val &= ~(M_CMD_DONE_EN | M_TX_FIFO_WATERMARK_EN);
 		val &= ~(M_RX_FIFO_WATERMARK_EN | M_RX_FIFO_LAST_EN);
 		if (val != val_old)
 			writel_relaxed(val, se->base + SE_GENI_M_IRQ_EN);
-
-		val_old = val = readl_relaxed(se->base + SE_GENI_S_IRQ_EN);
-		val &= ~S_CMD_DONE_EN;
-		if (val != val_old)
-			writel_relaxed(val, se->base + SE_GENI_S_IRQ_EN);
 	}
 
 	val_old = val = readl_relaxed(se->base + SE_GENI_DMA_MODE_EN);
···
 	geni_se_irq_clear(se);
 
 	writel(0, se->base + SE_IRQ_EN);
-
-	val = readl(se->base + SE_GENI_S_IRQ_EN);
-	val &= ~S_CMD_DONE_EN;
-	writel(val, se->base + SE_GENI_S_IRQ_EN);
 
 	val = readl(se->base + SE_GENI_M_IRQ_EN);
 	val &= ~(M_CMD_DONE_EN | M_TX_FIFO_WATERMARK_EN |

drivers/soc/qcom/qmi_interface.c

···
 	if (!qmi->recv_buf)
 		return -ENOMEM;
 
-	qmi->wq = alloc_workqueue("qmi_msg_handler", WQ_UNBOUND, 1);
+	qmi->wq = alloc_ordered_workqueue("qmi_msg_handler", 0);
 	if (!qmi->wq) {
 		ret = -ENOMEM;
 		goto err_free_recv_buf;

drivers/soc/qcom/ramp_controller.c

···
 	return qcom_ramp_controller_start(qrc);
 }
 
-static int qcom_ramp_controller_remove(struct platform_device *pdev)
+static void qcom_ramp_controller_remove(struct platform_device *pdev)
 {
 	struct qcom_ramp_controller *qrc = platform_get_drvdata(pdev);
+	int ret;
 
-	return rc_write_cfg(qrc, qrc->desc->cfg_ramp_dis,
-			    RC_DCVS_CFG_SID, qrc->desc->num_ramp_dis);
+	ret = rc_write_cfg(qrc, qrc->desc->cfg_ramp_dis,
+			   RC_DCVS_CFG_SID, qrc->desc->num_ramp_dis);
+	if (ret)
+		dev_err(&pdev->dev, "Failed to send disable sequence\n");
 }
 
 static const struct of_device_id qcom_ramp_controller_match_table[] = {
···
 		.suppress_bind_attrs = true,
 	},
 	.probe  = qcom_ramp_controller_probe,
-	.remove = qcom_ramp_controller_remove,
+	.remove_new = qcom_ramp_controller_remove,
 };
 
 static int __init qcom_ramp_controller_init(void)

drivers/soc/qcom/rpm_master_stats.c

···
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2023, Linaro Limited
+ *
+ * This driver supports what is known as "Master Stats v2" in Qualcomm
+ * downstream kernel terms, which seems to be the only version which has
+ * ever shipped, all the way from 2013 to 2023.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+
+struct master_stats_data {
+	void __iomem *base;
+	const char *label;
+};
+
+struct rpm_master_stats {
+	u32 active_cores;
+	u32 num_shutdowns;
+	u64 shutdown_req;
+	u64 wakeup_idx;
+	u64 bringup_req;
+	u64 bringup_ack;
+	u32 wakeup_reason; /* 0 = "rude wakeup", 1 = scheduled wakeup */
+	u32 last_sleep_trans_dur;
+	u32 last_wake_trans_dur;
+
+	/* Per-subsystem (*not necessarily* SoC-wide) XO shutdown stats */
+	u32 xo_count;
+	u64 xo_last_enter;
+	u64 last_exit;
+	u64 xo_total_dur;
+} __packed;
+
+static int master_stats_show(struct seq_file *s, void *unused)
+{
+	struct master_stats_data *data = s->private;
+	struct rpm_master_stats stat;
+
+	memcpy_fromio(&stat, data->base, sizeof(stat));
+
+	seq_printf(s, "%s:\n", data->label);
+
+	seq_printf(s, "\tLast shutdown @ %llu\n", stat.shutdown_req);
+	seq_printf(s, "\tLast bringup req @ %llu\n", stat.bringup_req);
+	seq_printf(s, "\tLast bringup ack @ %llu\n", stat.bringup_ack);
+	seq_printf(s, "\tLast wakeup idx: %llu\n", stat.wakeup_idx);
+	seq_printf(s, "\tLast XO shutdown enter @ %llu\n", stat.xo_last_enter);
+	seq_printf(s, "\tLast XO shutdown exit @ %llu\n", stat.last_exit);
+	seq_printf(s, "\tXO total duration: %llu\n", stat.xo_total_dur);
+	seq_printf(s, "\tLast sleep transition duration: %u\n", stat.last_sleep_trans_dur);
+	seq_printf(s, "\tLast wake transition duration: %u\n", stat.last_wake_trans_dur);
+	seq_printf(s, "\tXO shutdown count: %u\n", stat.xo_count);
+	seq_printf(s, "\tWakeup reason: 0x%x\n", stat.wakeup_reason);
+	seq_printf(s, "\tShutdown count: %u\n", stat.num_shutdowns);
+	seq_printf(s, "\tActive cores bitmask: 0x%x\n", stat.active_cores);
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(master_stats);
+
+static int master_stats_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct master_stats_data *data;
+	struct device_node *msgram_np;
+	struct dentry *dent, *root;
+	struct resource res;
+	int count, i, ret;
+
+	count = of_property_count_strings(dev->of_node, "qcom,master-names");
+	if (count < 0)
+		return count;
+
+	data = devm_kzalloc(dev, count * sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	root = debugfs_create_dir("qcom_rpm_master_stats", NULL);
+	platform_set_drvdata(pdev, root);
+
+	for (i = 0; i < count; i++) {
+		msgram_np = of_parse_phandle(dev->of_node, "qcom,rpm-msg-ram", i);
+		if (!msgram_np) {
+			debugfs_remove_recursive(root);
+			return dev_err_probe(dev, -ENODEV,
+					     "Couldn't parse MSG RAM phandle idx %d", i);
+		}
+
+		/*
+		 * Purposefully skip devm_platform helpers as we're using a
+		 * shared resource.
+		 */
+		ret = of_address_to_resource(msgram_np, 0, &res);
+		of_node_put(msgram_np);
+		if (ret < 0) {
+			debugfs_remove_recursive(root);
+			return ret;
+		}
+
+		data[i].base = devm_ioremap(dev, res.start, resource_size(&res));
+		if (!data[i].base) {
+			debugfs_remove_recursive(root);
+			return dev_err_probe(dev, -EINVAL,
+					     "Could not map the MSG RAM slice idx %d!\n", i);
+		}
+
+		ret = of_property_read_string_index(dev->of_node, "qcom,master-names", i,
+						    &data[i].label);
+		if (ret < 0) {
+			debugfs_remove_recursive(root);
+			return dev_err_probe(dev, ret,
+					     "Could not read name idx %d!\n", i);
+		}
+
+		/*
+		 * Generally it's not advised to fail on debugfs errors, but this
+		 * driver's only job is exposing data therein.
+		 */
+		dent = debugfs_create_file(data[i].label, 0444, root,
+					   &data[i], &master_stats_fops);
+		if (IS_ERR(dent)) {
+			debugfs_remove_recursive(root);
+			return dev_err_probe(dev, PTR_ERR(dent),
+					     "Failed to create debugfs file %s!\n", data[i].label);
+		}
+	}
+
+	device_set_pm_not_required(dev);
+
+	return 0;
+}
+
+static void master_stats_remove(struct platform_device *pdev)
+{
+	struct dentry *root = platform_get_drvdata(pdev);
+
+	debugfs_remove_recursive(root);
+}
+
+static const struct of_device_id rpm_master_table[] = {
+	{ .compatible = "qcom,rpm-master-stats" },
+	{ },
+};
+
+static struct platform_driver master_stats_driver = {
+	.probe = master_stats_probe,
+	.remove_new = master_stats_remove,
+	.driver = {
+		.name = "qcom_rpm_master_stats",
+		.of_match_table = rpm_master_table,
+	},
+};
+module_platform_driver(master_stats_driver);
+
+MODULE_DESCRIPTION("Qualcomm RPM Master Statistics driver");
+MODULE_LICENSE("GPL");

drivers/soc/qcom/rpmpd.c

···
 	pd->corner = state;
 
 	/* Always send updates for vfc and vfl */
-	if (!pd->enabled && pd->key != KEY_FLOOR_CORNER &&
-	    pd->key != KEY_FLOOR_LEVEL)
+	if (!pd->enabled && pd->key != cpu_to_le32(KEY_FLOOR_CORNER) &&
+	    pd->key != cpu_to_le32(KEY_FLOOR_LEVEL))
 		goto out;
 
 	ret = rpmpd_aggregate_corner(pd);

drivers/soc/qcom/smem.c

···
 #include <linux/sizes.h>
 #include <linux/slab.h>
 #include <linux/soc/qcom/smem.h>
+#include <linux/soc/qcom/socinfo.h>
 
 /*
  * The Qualcomm shared memory system is a allocate only heap structure that
···
 
 	return ret;
 }
-EXPORT_SYMBOL(qcom_smem_alloc);
+EXPORT_SYMBOL_GPL(qcom_smem_alloc);
 
 static void *qcom_smem_get_global(struct qcom_smem *smem,
 				  unsigned item,
···
 	return ptr;
 
 }
-EXPORT_SYMBOL(qcom_smem_get);
+EXPORT_SYMBOL_GPL(qcom_smem_get);
 
 /**
  * qcom_smem_get_free_space() - retrieve amount of free space in a partition
···
 
 	return ret;
 }
-EXPORT_SYMBOL(qcom_smem_get_free_space);
+EXPORT_SYMBOL_GPL(qcom_smem_get_free_space);
 
 static bool addr_in_range(void __iomem *base, size_t size, void *addr)
 {
···
 
 	return 0;
 }
-EXPORT_SYMBOL(qcom_smem_virt_to_phys);
+EXPORT_SYMBOL_GPL(qcom_smem_virt_to_phys);
+
+/**
+ * qcom_smem_get_soc_id() - return the SoC ID
+ * @id:	On success, we return the SoC ID here.
+ *
+ * Look up SoC ID from HW/SW build ID and return it.
+ *
+ * Return: 0 on success, negative errno on failure.
+ */
+int qcom_smem_get_soc_id(u32 *id)
+{
+	struct socinfo *info;
+
+	info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID, NULL);
+	if (IS_ERR(info))
+		return PTR_ERR(info);
+
+	*id = __le32_to_cpu(info->id);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_smem_get_soc_id);
 
 static int qcom_smem_get_sbl_version(struct qcom_smem *smem)
 {

drivers/soc/qcom/socinfo.c

···
 #include <linux/random.h>
 #include <linux/slab.h>
 #include <linux/soc/qcom/smem.h>
+#include <linux/soc/qcom/socinfo.h>
 #include <linux/string.h>
 #include <linux/stringify.h>
 #include <linux/sys_soc.h>
···
 /* Helper macros to create soc_id table */
 #define qcom_board_id(id) QCOM_ID_ ## id, __stringify(id)
 #define qcom_board_id_named(id, name) QCOM_ID_ ## id, (name)
-
-#define SMEM_SOCINFO_BUILD_ID_LENGTH           32
-#define SMEM_SOCINFO_CHIP_ID_LENGTH            32
-
-/*
- * SMEM item id, used to acquire handles to respective
- * SMEM region.
- */
-#define SMEM_HW_SW_BUILD_ID            137
 
 #ifdef CONFIG_DEBUG_FS
 #define SMEM_IMAGE_VERSION_BLOCKS_COUNT        32
···
 	[58] = "PM8450",
 	[65] = "PM8010",
 };
-#endif /* CONFIG_DEBUG_FS */
 
-/* Socinfo SMEM item structure */
-struct socinfo {
-	__le32 fmt;
-	__le32 id;
-	__le32 ver;
-	char build_id[SMEM_SOCINFO_BUILD_ID_LENGTH];
-	/* Version 2 */
-	__le32 raw_id;
-	__le32 raw_ver;
-	/* Version 3 */
-	__le32 hw_plat;
-	/* Version 4 */
-	__le32 plat_ver;
-	/* Version 5 */
-	__le32 accessory_chip;
-	/* Version 6 */
-	__le32 hw_plat_subtype;
-	/* Version 7 */
-	__le32 pmic_model;
-	__le32 pmic_die_rev;
-	/* Version 8 */
-	__le32 pmic_model_1;
-	__le32 pmic_die_rev_1;
-	__le32 pmic_model_2;
-	__le32 pmic_die_rev_2;
-	/* Version 9 */
-	__le32 foundry_id;
-	/* Version 10 */
-	__le32 serial_num;
-	/* Version 11 */
-	__le32 num_pmics;
-	__le32 pmic_array_offset;
-	/* Version 12 */
-	__le32 chip_family;
-	__le32 raw_device_family;
-	__le32 raw_device_num;
-	/* Version 13 */
-	__le32 nproduct_id;
-	char chip_id[SMEM_SOCINFO_CHIP_ID_LENGTH];
-	/* Version 14 */
-	__le32 num_clusters;
-	__le32 ncluster_array_offset;
-	__le32 num_defective_parts;
-	__le32 ndefective_parts_array_offset;
-	/* Version 15 */
-	__le32 nmodem_supported;
-	/* Version 16 */
-	__le32  feature_code;
-	__le32  pcode;
-	__le32  npartnamemap_offset;
-	__le32  nnum_partname_mapping;
-	/* Version 17 */
-	__le32 oem_variant;
-};
-
-#ifdef CONFIG_DEBUG_FS
 struct socinfo_params {
 	u32 raw_device_family;
 	u32 hw_plat_subtype;
···
 	u32 nproduct_id;
 	u32 num_clusters;
 	u32 ncluster_array_offset;
-	u32 num_defective_parts;
-	u32 ndefective_parts_array_offset;
+	u32 num_subset_parts;
+	u32 nsubset_parts_array_offset;
 	u32 nmodem_supported;
 	u32 feature_code;
 	u32 pcode;
 	u32 oem_variant;
+	u32 num_func_clusters;
+	u32 boot_cluster;
+	u32 boot_core;
 };
 
 struct smem_image_version {
···
 	{ qcom_board_id(SM8350) },
 	{ qcom_board_id(QCM2290) },
 	{ qcom_board_id(SM6115) },
+	{ qcom_board_id(IPQ5010) },
+	{ qcom_board_id(IPQ5018) },
+	{ qcom_board_id(IPQ5028) },
 	{ qcom_board_id(SC8280XP) },
 	{ qcom_board_id(IPQ6005) },
 	{ qcom_board_id(QRB5165) },
···
 	{ qcom_board_id_named(SM8450_3, "SM8450") },
 	{ qcom_board_id(SC7280) },
 	{ qcom_board_id(SC7180P) },
+	{ qcom_board_id(IPQ5000) },
+	{ qcom_board_id(IPQ0509) },
+	{ qcom_board_id(IPQ0518) },
 	{ qcom_board_id(SM6375) },
 	{ qcom_board_id(IPQ9514) },
 	{ qcom_board_id(IPQ9550) },
···
 	{ qcom_board_id(IPQ9570) },
 	{ qcom_board_id(IPQ9574) },
 	{ qcom_board_id(SM8550) },
+	{ qcom_board_id(IPQ5016) },
 	{ qcom_board_id(IPQ9510) },
 	{ qcom_board_id(QRB4210) },
 	{ qcom_board_id(QRB2210) },
···
 	{ qcom_board_id(QRU1000) },
 	{ qcom_board_id(QDU1000) },
 	{ qcom_board_id(QDU1010) },
+	{ qcom_board_id(IPQ5019) },
 	{ qcom_board_id(QRU1032) },
 	{ qcom_board_id(QRU1052) },
 	{ qcom_board_id(QRU1062) },
 	{ qcom_board_id(IPQ5332) },
 	{ qcom_board_id(IPQ5322) },
+	{ qcom_board_id(IPQ5312) },
+	{ qcom_board_id(IPQ5302) },
+	{ qcom_board_id(IPQ5300) },
 };
 
 static const char *socinfo_machine(struct device *dev, unsigned int id)
···
 			   &qcom_socinfo->info.fmt);
 
 	switch (qcom_socinfo->info.fmt) {
+	case SOCINFO_VERSION(0, 19):
+		qcom_socinfo->info.num_func_clusters = __le32_to_cpu(info->num_func_clusters);
+		qcom_socinfo->info.boot_cluster = __le32_to_cpu(info->boot_cluster);
+		qcom_socinfo->info.boot_core = __le32_to_cpu(info->boot_core);
+
+		debugfs_create_u32("num_func_clusters", 0444, qcom_socinfo->dbg_root,
+				   &qcom_socinfo->info.num_func_clusters);
+		debugfs_create_u32("boot_cluster", 0444, qcom_socinfo->dbg_root,
+				   &qcom_socinfo->info.boot_cluster);
+		debugfs_create_u32("boot_core", 0444, qcom_socinfo->dbg_root,
+				   &qcom_socinfo->info.boot_core);
+		fallthrough;
+	case SOCINFO_VERSION(0, 18):
 	case SOCINFO_VERSION(0, 17):
 		qcom_socinfo->info.oem_variant = __le32_to_cpu(info->oem_variant);
 		debugfs_create_u32("oem_variant", 0444, qcom_socinfo->dbg_root,
···
 	case SOCINFO_VERSION(0, 14):
 		qcom_socinfo->info.num_clusters = __le32_to_cpu(info->num_clusters);
 		qcom_socinfo->info.ncluster_array_offset = __le32_to_cpu(info->ncluster_array_offset);
-		qcom_socinfo->info.num_defective_parts = __le32_to_cpu(info->num_defective_parts);
-		qcom_socinfo->info.ndefective_parts_array_offset = __le32_to_cpu(info->ndefective_parts_array_offset);
+		qcom_socinfo->info.num_subset_parts = __le32_to_cpu(info->num_subset_parts);
+		qcom_socinfo->info.nsubset_parts_array_offset =
+			__le32_to_cpu(info->nsubset_parts_array_offset);
 
 		debugfs_create_u32("num_clusters", 0444, qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.num_clusters);
 		debugfs_create_u32("ncluster_array_offset", 0444, qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.ncluster_array_offset);
-		debugfs_create_u32("num_defective_parts", 0444, qcom_socinfo->dbg_root,
-				   &qcom_socinfo->info.num_defective_parts);
-		debugfs_create_u32("ndefective_parts_array_offset", 0444, qcom_socinfo->dbg_root,
-				   &qcom_socinfo->info.ndefective_parts_array_offset);
+		debugfs_create_u32("num_subset_parts", 0444, qcom_socinfo->dbg_root,
+				   &qcom_socinfo->info.num_subset_parts);
+		debugfs_create_u32("nsubset_parts_array_offset", 0444, qcom_socinfo->dbg_root,
+				   &qcom_socinfo->info.nsubset_parts_array_offset);
 		fallthrough;
 	case SOCINFO_VERSION(0, 13):
 		qcom_socinfo->info.nproduct_id = __le32_to_cpu(info->nproduct_id);

drivers/soc/renesas/rcar-rst.c

···
 
 #define WDTRSTCR_RESET		0xA55A0002
 #define WDTRSTCR		0x0054
+#define GEN4_WDTRSTCR		0x0010
 
 #define CR7BAR			0x0070
 #define CR7BAREN		BIT(4)
···
 static int rcar_rst_enable_wdt_reset(void __iomem *base)
 {
 	iowrite32(WDTRSTCR_RESET, base + WDTRSTCR);
+	return 0;
+}
+
+static int rcar_rst_v3u_enable_wdt_reset(void __iomem *base)
+{
+	iowrite32(WDTRSTCR_RESET, base + GEN4_WDTRSTCR);
 	return 0;
 }
 
···
 	.set_rproc_boot_addr = rcar_rst_set_gen3_rproc_boot_addr,
 };
 
+/* V3U firmware doesn't enable WDT reset and there won't be updates anymore */
+static const struct rst_config rcar_rst_v3u __initconst = {
+	.modemr = 0x00,		/* MODEMR0 and it has CPG related bits */
+	.configure = rcar_rst_v3u_enable_wdt_reset,
+};
+
 static const struct rst_config rcar_rst_gen4 __initconst = {
 	.modemr = 0x00,		/* MODEMR0 and it has CPG related bits */
 };
···
 	{ .compatible = "renesas,r8a77990-rst", .data = &rcar_rst_gen3 },
 	{ .compatible = "renesas,r8a77995-rst", .data = &rcar_rst_gen3 },
 	/* R-Car Gen4 */
-	{ .compatible = "renesas,r8a779a0-rst", .data = &rcar_rst_gen4 },
+	{ .compatible = "renesas,r8a779a0-rst", .data = &rcar_rst_v3u },
 	{ .compatible = "renesas,r8a779f0-rst", .data = &rcar_rst_gen4 },
 	{ .compatible = "renesas,r8a779g0-rst", .data = &rcar_rst_gen4 },
 	{ /* sentinel */ }

drivers/soc/renesas/rmobile-sysc.c

···
 #include <linux/clk/renesas.h>
 #include <linux/console.h>
 #include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/pm.h>
 #include <linux/pm_clock.h>
 #include <linux/pm_domain.h>
 #include <linux/slab.h>
-
-#include <asm/io.h>
 
 /* SYSC */
 #define SPDCR		0x08	/* SYS Power Down Control Register */
···
 {
 	struct rmobile_pm_domain *rmobile_pd = to_rmobile_pd(genpd);
 	unsigned int mask = BIT(rmobile_pd->bit_shift);
+	u32 val;
 
 	if (rmobile_pd->suspend) {
 		int ret = rmobile_pd->suspend();
···
 	}
 
 	if (readl(rmobile_pd->base + PSTR) & mask) {
-		unsigned int retry_count;
 		writel(mask, rmobile_pd->base + SPDCR);
 
-		for (retry_count = PSTR_RETRIES; retry_count; retry_count--) {
-			if (!(readl(rmobile_pd->base + SPDCR) & mask))
-				break;
-			cpu_relax();
-		}
+		readl_poll_timeout_atomic(rmobile_pd->base + SPDCR, val,
+					  !(val & mask), 0, PSTR_RETRIES);
 	}
 
 	pr_debug("%s: Power off, 0x%08x -> PSTR = 0x%08x\n", genpd->name, mask,
···
 
 static int __rmobile_pd_power_up(struct rmobile_pm_domain *rmobile_pd)
 {
-	unsigned int mask = BIT(rmobile_pd->bit_shift);
-	unsigned int retry_count;
+	unsigned int val, mask = BIT(rmobile_pd->bit_shift);
 	int ret = 0;
 
 	if (readl(rmobile_pd->base + PSTR) & mask)
···
 
 	writel(mask, rmobile_pd->base + SWUCR);
 
-	for (retry_count = 2 * PSTR_RETRIES; retry_count; retry_count--) {
-		if (!(readl(rmobile_pd->base + SWUCR) & mask))
-			break;
-		if (retry_count > PSTR_RETRIES)
-			udelay(PSTR_DELAY_US);
-		else
-			cpu_relax();
-	}
-	if (!retry_count)
-		ret = -EIO;
+	ret = readl_poll_timeout_atomic(rmobile_pd->base + SWUCR, val,
+					(val & mask), PSTR_DELAY_US,
+					PSTR_RETRIES * PSTR_DELAY_US);
 
 	pr_debug("%s: Power on, 0x%08x -> PSTR = 0x%08x\n",
 		 rmobile_pd->genpd.name, mask,

drivers/soc/rockchip/dtpm.c

···
 #include <linux/platform_device.h>
 
 static struct dtpm_node __initdata rk3399_hierarchy[] = {
-	[0]{ .name = "rk3399",
-	     .type = DTPM_NODE_VIRTUAL },
-	[1]{ .name = "package",
-	     .type = DTPM_NODE_VIRTUAL,
-	     .parent = &rk3399_hierarchy[0] },
-	[2]{ .name = "/cpus/cpu@0",
-	     .type = DTPM_NODE_DT,
-	     .parent = &rk3399_hierarchy[1] },
-	[3]{ .name = "/cpus/cpu@1",
-	     .type = DTPM_NODE_DT,
-	     .parent = &rk3399_hierarchy[1] },
-	[4]{ .name = "/cpus/cpu@2",
-	     .type = DTPM_NODE_DT,
-	     .parent = &rk3399_hierarchy[1] },
-	[5]{ .name = "/cpus/cpu@3",
-	     .type = DTPM_NODE_DT,
-	     .parent = &rk3399_hierarchy[1] },
-	[6]{ .name = "/cpus/cpu@100",
-	     .type = DTPM_NODE_DT,
-	     .parent = &rk3399_hierarchy[1] },
-	[7]{ .name = "/cpus/cpu@101",
-	     .type = DTPM_NODE_DT,
-	     .parent = &rk3399_hierarchy[1] },
-	[8]{ .name = "/gpu@ff9a0000",
-	     .type = DTPM_NODE_DT,
-	     .parent = &rk3399_hierarchy[1] },
-	[9]{ /* sentinel */ }
+	[0] = { .name = "rk3399",
+		.type = DTPM_NODE_VIRTUAL },
+	[1] = { .name = "package",
+		.type = DTPM_NODE_VIRTUAL,
+		.parent = &rk3399_hierarchy[0] },
+	[2] = { .name = "/cpus/cpu@0",
+		.type = DTPM_NODE_DT,
+		.parent = &rk3399_hierarchy[1] },
+	[3] = { .name = "/cpus/cpu@1",
+		.type = DTPM_NODE_DT,
+		.parent = &rk3399_hierarchy[1] },
+	[4] = { .name = "/cpus/cpu@2",
+		.type = DTPM_NODE_DT,
+		.parent = &rk3399_hierarchy[1] },
+	[5] = { .name = "/cpus/cpu@3",
+		.type = DTPM_NODE_DT,
+		.parent = &rk3399_hierarchy[1] },
+	[6] = { .name = "/cpus/cpu@100",
+		.type = DTPM_NODE_DT,
+		.parent = &rk3399_hierarchy[1] },
+	[7] = { .name = "/cpus/cpu@101",
+		.type = DTPM_NODE_DT,
+		.parent = &rk3399_hierarchy[1] },
+	[8] = { .name = "/gpu@ff9a0000",
+		.type = DTPM_NODE_DT,
+		.parent = &rk3399_hierarchy[1] },
+	[9] = { /* sentinel */ }
 };
 
 static struct of_device_id __initdata rockchip_dtpm_match_table[] = {

drivers/soc/rockchip/pm_domains.c

···
 	bool active_wakeup;
 	int pwr_w_mask;
 	int req_w_mask;
+	int mem_status_mask;
 	int repair_status_mask;
 	u32 pwr_offset;
+	u32 mem_offset;
 	u32 req_offset;
 };
 
···
 	u32 req_offset;
 	u32 idle_offset;
 	u32 ack_offset;
+	u32 mem_pwr_offset;
+	u32 chain_status_offset;
+	u32 mem_status_offset;
 	u32 repair_status_offset;
 
 	u32 core_pwrcnt_offset;
···
 	.active_wakeup = wakeup,			\
 }
 
-#define DOMAIN_M_O_R(_name, p_offset, pwr, status, r_status, r_offset, req, idle, ack, wakeup)	\
+#define DOMAIN_M_O_R(_name, p_offset, pwr, status, m_offset, m_status, r_status, r_offset, req, idle, ack, wakeup)	\
 {							\
 	.name = _name,					\
 	.pwr_offset = p_offset,				\
 	.pwr_w_mask = (pwr) << 16,			\
 	.pwr_mask = (pwr),				\
 	.status_mask = (status),			\
+	.mem_offset = m_offset,				\
+	.mem_status_mask = (m_status),			\
 	.repair_status_mask = (r_status),		\
 	.req_offset = r_offset,				\
 	.req_w_mask = (req) << 16,			\
···
 }
 EXPORT_SYMBOL_GPL(rockchip_pmu_unblock);
 
-#define DOMAIN_RK3588(name, p_offset, pwr, status, r_status, r_offset, req, idle, wakeup)	\
-	DOMAIN_M_O_R(name, p_offset, pwr, status, r_status, r_offset, req, idle, idle, wakeup)
+#define DOMAIN_RK3588(name, p_offset, pwr, status, m_offset, m_status, r_status, r_offset, req, idle, wakeup)	\
+	DOMAIN_M_O_R(name, p_offset, pwr, status, m_offset, m_status, r_status, r_offset, req, idle, idle, wakeup)
 
 static bool rockchip_pmu_domain_is_idle(struct rockchip_pm_domain *pd)
 {
···
 	return !(val & pd->info->status_mask);
 }
 
+static bool rockchip_pmu_domain_is_mem_on(struct rockchip_pm_domain *pd)
+{
+	struct rockchip_pmu *pmu = pd->pmu;
+	unsigned int val;
+
+	regmap_read(pmu->regmap,
+		    pmu->info->mem_status_offset + pd->info->mem_offset, &val);
+
+	/* 1'b0: power on, 1'b1: power off */
+	return !(val & pd->info->mem_status_mask);
+}
+
+static bool rockchip_pmu_domain_is_chain_on(struct rockchip_pm_domain *pd)
+{
+	struct rockchip_pmu *pmu = pd->pmu;
+	unsigned int val;
+
+	regmap_read(pmu->regmap,
+		    pmu->info->chain_status_offset + pd->info->mem_offset, &val);
+
+	/* 1'b1: power on, 1'b0: power off */
+	return val & pd->info->mem_status_mask;
+}
+
+static int rockchip_pmu_domain_mem_reset(struct rockchip_pm_domain *pd)
+{
+	struct rockchip_pmu *pmu = pd->pmu;
+	struct generic_pm_domain *genpd = &pd->genpd;
+	bool is_on;
+	int ret = 0;
+
+	ret = readx_poll_timeout_atomic(rockchip_pmu_domain_is_chain_on, pd, is_on,
+					is_on == true, 0, 10000);
+	if (ret) {
+		dev_err(pmu->dev,
+			"failed to get chain status '%s', target_on=1, val=%d\n",
+			genpd->name, is_on);
+		goto error;
+	}
+
+	udelay(20);
+
+	regmap_write(pmu->regmap, pmu->info->mem_pwr_offset + pd->info->pwr_offset,
+		     (pd->info->pwr_mask | pd->info->pwr_w_mask));
+	wmb();
+
+	ret = readx_poll_timeout_atomic(rockchip_pmu_domain_is_mem_on, pd, is_on,
+					is_on == false, 0, 10000);
+	if (ret) {
+		dev_err(pmu->dev,
+			"failed to get mem status '%s', target_on=0, val=%d\n",
+			genpd->name, is_on);
+		goto error;
+	}
+
+	regmap_write(pmu->regmap, pmu->info->mem_pwr_offset + pd->info->pwr_offset,
+		     pd->info->pwr_w_mask);
+	wmb();
+
+	ret = readx_poll_timeout_atomic(rockchip_pmu_domain_is_mem_on, pd, is_on,
+					is_on == true, 0, 10000);
+	if (ret) {
+		dev_err(pmu->dev,
+			"failed to get mem status '%s', target_on=1, val=%d\n",
+			genpd->name, is_on);
+	}
+
+error:
+	return ret;
+}
+
 static void rockchip_do_pmu_set_power_domain(struct rockchip_pm_domain *pd,
 					     bool on)
 {
 	struct rockchip_pmu *pmu = pd->pmu;
 	struct generic_pm_domain *genpd = &pd->genpd;
 	u32 pd_pwr_offset = pd->info->pwr_offset;
-	bool is_on;
+	bool is_on, is_mem_on = false;
 
 	if (pd->info->pwr_mask == 0)
 		return;
-	else if (pd->info->pwr_w_mask)
+
+	if (on && pd->info->mem_status_mask)
+		is_mem_on = rockchip_pmu_domain_is_mem_on(pd);
+
+	if (pd->info->pwr_w_mask)
 		regmap_write(pmu->regmap, pmu->info->pwr_offset + pd_pwr_offset,
 			     on ? pd->info->pwr_w_mask :
 			     (pd->info->pwr_mask | pd->info->pwr_w_mask));
···
 				   pd->info->pwr_mask, on ? 0 : -1U);
 
 	wmb();
+
+	if (is_mem_on && rockchip_pmu_domain_mem_reset(pd))
+		return;
 
 	if (readx_poll_timeout_atomic(rockchip_pmu_domain_is_on, pd, is_on,
 				      is_on == on, 0, 10000)) {
···
 	pd->genpd.flags = GENPD_FLAG_PM_CLK;
 	if (pd_info->active_wakeup)
 		pd->genpd.flags |= GENPD_FLAG_ACTIVE_WAKEUP;
-	pm_genpd_init(&pd->genpd, NULL, !rockchip_pmu_domain_is_on(pd));
+	pm_genpd_init(&pd->genpd, NULL,
+		      !rockchip_pmu_domain_is_on(pd) ||
+		      (pd->info->mem_status_mask && !rockchip_pmu_domain_is_mem_on(pd)));
 
 	pmu->genpd_data.domains[id] = &pd->genpd;
 	return 0;
···
 };
 
 static const struct rockchip_domain_info rk3588_pm_domains[] = {
-	[RK3588_PD_GPU]		= DOMAIN_RK3588("gpu",     0x0, BIT(0),  0,       BIT(1),  0x0, BIT(0),  BIT(0),  false),
-	[RK3588_PD_NPU]		= DOMAIN_RK3588("npu",     0x0, BIT(1),  BIT(1),  0,       0x0, 0,       0,       false),
-	[RK3588_PD_VCODEC]	= DOMAIN_RK3588("vcodec",  0x0, BIT(2),  BIT(2),  0,       0x0, 0,       0,       false),
-	[RK3588_PD_NPUTOP]	= DOMAIN_RK3588("nputop",  0x0, BIT(3),  0,       BIT(2),  0x0, BIT(1),  BIT(1),  false),
-	[RK3588_PD_NPU1]	= DOMAIN_RK3588("npu1",    0x0, BIT(4),  0,       BIT(3),  0x0, BIT(2),  BIT(2),  false),
-	[RK3588_PD_NPU2]	= DOMAIN_RK3588("npu2",    0x0, BIT(5),  0,       BIT(4),  0x0, BIT(3),  BIT(3),  false),
-	[RK3588_PD_VENC0]	= DOMAIN_RK3588("venc0",   0x0, BIT(6),  0,       BIT(5),  0x0, BIT(4),  BIT(4),  false),
-	[RK3588_PD_VENC1]	= DOMAIN_RK3588("venc1",   0x0, BIT(7),  0,       BIT(6),  0x0, BIT(5),  BIT(5),  false),
-	[RK3588_PD_RKVDEC0]	= DOMAIN_RK3588("rkvdec0", 0x0, BIT(8),  0,       BIT(7),  0x0, BIT(6),  BIT(6),  false),
-	[RK3588_PD_RKVDEC1]	= DOMAIN_RK3588("rkvdec1", 0x0, BIT(9),  0,       BIT(8),  0x0, BIT(7),  BIT(7),  false),
-	[RK3588_PD_VDPU]	= DOMAIN_RK3588("vdpu",    0x0, BIT(10), 0,       BIT(9),  0x0, BIT(8),  BIT(8),  false),
-	[RK3588_PD_RGA30]	= DOMAIN_RK3588("rga30",   0x0, BIT(11), 0,       BIT(10), 0x0, 0,       0,       false),
-	[RK3588_PD_AV1]		= DOMAIN_RK3588("av1",     0x0, BIT(12), 0,       BIT(11), 0x0, BIT(9),  BIT(9),  false),
-	[RK3588_PD_VI]		= DOMAIN_RK3588("vi",      0x0, BIT(13), 0,       BIT(12), 0x0, BIT(10), BIT(10), false),
-	[RK3588_PD_FEC]		= DOMAIN_RK3588("fec",     0x0, BIT(14), 0,       BIT(13), 0x0, 0,       0,       false),
-	[RK3588_PD_ISP1]	= DOMAIN_RK3588("isp1",    0x0, BIT(15), 0,       BIT(14), 0x0, BIT(11), BIT(11), false),
-	[RK3588_PD_RGA31]	= DOMAIN_RK3588("rga31",   0x4, BIT(0),  0,       BIT(15), 0x0, BIT(12), BIT(12), false),
-	[RK3588_PD_VOP]		= DOMAIN_RK3588("vop",     0x4, BIT(1),  0,       BIT(16), 0x0, BIT(13) | BIT(14), BIT(13) | BIT(14), false),
-	[RK3588_PD_VO0]		= DOMAIN_RK3588("vo0",     0x4, BIT(2),  0,       BIT(17), 0x0, BIT(15), BIT(15), false),
-	[RK3588_PD_VO1]		= DOMAIN_RK3588("vo1",     0x4, BIT(3),  0,       BIT(18), 0x4, BIT(0),  BIT(16), false),
-	[RK3588_PD_AUDIO]	= DOMAIN_RK3588("audio",   0x4, BIT(4),  0,       BIT(19), 0x4, BIT(1),  BIT(17), false),
-	[RK3588_PD_PHP]		= DOMAIN_RK3588("php",     0x4, BIT(5),  0,       BIT(20), 0x4, BIT(5),  BIT(21), false),
-	[RK3588_PD_GMAC]	= DOMAIN_RK3588("gmac",    0x4, BIT(6),  0,       BIT(21), 0x0, 0,       0,       false),
-	[RK3588_PD_PCIE]	= DOMAIN_RK3588("pcie",    0x4, BIT(7),  0,       BIT(22), 0x0, 0,       0,       true),
-	[RK3588_PD_NVM]		= DOMAIN_RK3588("nvm",     0x4, BIT(8),  BIT(24), 0,       0x4, BIT(2),  BIT(18), false),
-	[RK3588_PD_NVM0]	= DOMAIN_RK3588("nvm0",    0x4, BIT(9),  0,       BIT(23), 0x0, 0,       0,       false),
-	[RK3588_PD_SDIO]	= DOMAIN_RK3588("sdio",    0x4, BIT(10), 0,       BIT(24), 0x4, BIT(3),  BIT(19), false),
-	[RK3588_PD_USB]		= DOMAIN_RK3588("usb",     0x4, BIT(11), 0,       BIT(25), 0x4, BIT(4),  BIT(20), true),
-	[RK3588_PD_SDMMC]	= DOMAIN_RK3588("sdmmc",   0x4, BIT(13), 0,       BIT(26), 0x0, 0,       0,       false),
+	[RK3588_PD_GPU]		= DOMAIN_RK3588("gpu",     0x0, BIT(0),  0,       0x0, 0,       BIT(1),  0x0, BIT(0),  BIT(0),  false),
+	[RK3588_PD_NPU]		= DOMAIN_RK3588("npu",     0x0, BIT(1),  BIT(1),  0x0, 0,       0,       0x0, 0,       0,       false),
+	[RK3588_PD_VCODEC]	= DOMAIN_RK3588("vcodec",  0x0, BIT(2),  BIT(2),  0x0, 0,       0,       0x0, 0,       0,       false),
+	[RK3588_PD_NPUTOP]	= DOMAIN_RK3588("nputop",  0x0, BIT(3),  0,       0x0, BIT(11), BIT(2),  0x0, BIT(1),  BIT(1),  false),
+	[RK3588_PD_NPU1]	= DOMAIN_RK3588("npu1",    0x0, BIT(4),  0,       0x0, BIT(12), BIT(3),  0x0, BIT(2),  BIT(2),  false),
+	[RK3588_PD_NPU2]	= DOMAIN_RK3588("npu2",    0x0, BIT(5),  0,       0x0, BIT(13), BIT(4),  0x0, BIT(3),  BIT(3),  false),
+	[RK3588_PD_VENC0]	= DOMAIN_RK3588("venc0",   0x0, BIT(6),  0,       0x0, BIT(14), BIT(5),  0x0, BIT(4),  BIT(4),  false),
+	[RK3588_PD_VENC1]	= DOMAIN_RK3588("venc1",   0x0, BIT(7),  0,       0x0, BIT(15), BIT(6),  0x0, BIT(5),  BIT(5),  false),
+	[RK3588_PD_RKVDEC0]	= DOMAIN_RK3588("rkvdec0", 0x0, BIT(8),  0,       0x0, BIT(16), BIT(7),  0x0, BIT(6),  BIT(6),  false),
+	[RK3588_PD_RKVDEC1]	= DOMAIN_RK3588("rkvdec1", 0x0, BIT(9),  0,       0x0, BIT(17), BIT(8),  0x0, BIT(7),  BIT(7),  false),
+	[RK3588_PD_VDPU]	= DOMAIN_RK3588("vdpu",    0x0, BIT(10), 0,       0x0, BIT(18), BIT(9),  0x0, BIT(8),  BIT(8),  false),
+	[RK3588_PD_RGA30]	= DOMAIN_RK3588("rga30",   0x0, BIT(11), 0,       0x0, BIT(19), BIT(10), 0x0, 0,       0,       false),
+	[RK3588_PD_AV1]		= DOMAIN_RK3588("av1",     0x0, BIT(12), 0,       0x0, BIT(20), BIT(11), 0x0, BIT(9),  BIT(9),  false),
+	[RK3588_PD_VI]		= DOMAIN_RK3588("vi",      0x0, BIT(13), 0,       0x0, BIT(21), BIT(12), 0x0, BIT(10), BIT(10), false),
+	[RK3588_PD_FEC]		= DOMAIN_RK3588("fec",     0x0, BIT(14), 0,       0x0, BIT(22), BIT(13), 0x0, 0,       0,       false),
+	[RK3588_PD_ISP1]	= DOMAIN_RK3588("isp1",    0x0, BIT(15), 0,       0x0, BIT(23), BIT(14), 0x0, BIT(11), BIT(11), false),
+	[RK3588_PD_RGA31]	= DOMAIN_RK3588("rga31",   0x4, BIT(0),  0,       0x0, BIT(24), BIT(15), 0x0, BIT(12), BIT(12), false),
+	[RK3588_PD_VOP]		= DOMAIN_RK3588("vop",     0x4, BIT(1),  0,       0x0, BIT(25), BIT(16), 0x0, BIT(13) | BIT(14), BIT(13) | BIT(14), false),
+	[RK3588_PD_VO0]		= DOMAIN_RK3588("vo0",     0x4, BIT(2),  0,       0x0, BIT(26), BIT(17), 0x0, BIT(15), BIT(15), false),
+	[RK3588_PD_VO1]		= DOMAIN_RK3588("vo1",     0x4, BIT(3),  0,       0x0, BIT(27), BIT(18), 0x4, BIT(0),  BIT(16), false),
+	[RK3588_PD_AUDIO]	= DOMAIN_RK3588("audio",   0x4, BIT(4),  0,       0x0, BIT(28), BIT(19), 0x4, BIT(1),  BIT(17), false),
+	[RK3588_PD_PHP]		= DOMAIN_RK3588("php",     0x4, BIT(5),  0,       0x0, BIT(29), BIT(20), 0x4, BIT(5),  BIT(21), false),
+	[RK3588_PD_GMAC]	= DOMAIN_RK3588("gmac",    0x4, BIT(6),  0,       0x0, BIT(30), BIT(21), 0x0, 0,       0,       false),
+	[RK3588_PD_PCIE]	= DOMAIN_RK3588("pcie",    0x4, BIT(7),  0,       0x0, BIT(31), BIT(22), 0x0, 0,       0,       true),
+	[RK3588_PD_NVM]		= DOMAIN_RK3588("nvm",     0x4, BIT(8),  BIT(24), 0x4, 0,       0,       0x4, BIT(2),  BIT(18), false),
+	[RK3588_PD_NVM0]	= DOMAIN_RK3588("nvm0",    0x4, BIT(9),  0,       0x4, BIT(1),  BIT(23), 0x0, 0,       0,       false),
+	[RK3588_PD_SDIO]	= DOMAIN_RK3588("sdio",    0x4, BIT(10), 0,       0x4, BIT(2),  BIT(24), 0x4, BIT(3),  BIT(19), false),
+	[RK3588_PD_USB]		= DOMAIN_RK3588("usb",     0x4, BIT(11), 0,       0x4, BIT(3),  BIT(25), 0x4, BIT(4),  BIT(20), true),
+	[RK3588_PD_SDMMC]	= DOMAIN_RK3588("sdmmc",   0x4, BIT(13), 0,       0x4, BIT(5),  BIT(26), 0x0, 0,       0,       false),
 };
 
 static const struct rockchip_pmu_info px30_pmu = {
···
 	.req_offset = 0x10c,
 	.idle_offset = 0x120,
 	.ack_offset = 0x118,
+	.mem_pwr_offset = 0x1a0,
+	.chain_status_offset = 0x1f0,
+	.mem_status_offset = 0x1f8,
 	.repair_status_offset = 0x290,
 
 	.num_domains = ARRAY_SIZE(rk3588_pm_domains),

drivers/soc/samsung/exynos-pmu.c

···
 
 	if (pmu_data->powerdown_conf_extra)
 		pmu_data->powerdown_conf_extra(mode);
+
+	if (pmu_data->pmu_config_extra) {
+		for (i = 0; pmu_data->pmu_config_extra[i].offset != PMU_TABLE_END; i++)
+			pmu_raw_writel(pmu_data->pmu_config_extra[i].val[mode],
+				       pmu_data->pmu_config_extra[i].offset);
+	}
 }
 
 /*
···
 	}, {
 		.compatible = "samsung,exynos4210-pmu",
 		.data = exynos_pmu_data_arm_ptr(exynos4210_pmu_data),
+	}, {
+		.compatible = "samsung,exynos4212-pmu",
+		.data = exynos_pmu_data_arm_ptr(exynos4212_pmu_data),
 	}, {
 		.compatible = "samsung,exynos4412-pmu",
 		.data = exynos_pmu_data_arm_ptr(exynos4412_pmu_data),

drivers/soc/samsung/exynos-pmu.h

···
 
 struct exynos_pmu_data {
 	const struct exynos_pmu_conf *pmu_config;
+	const struct exynos_pmu_conf *pmu_config_extra;
 
 	void (*pmu_init)(void);
 	void (*powerdown_conf)(enum sys_powerdown);
···
 /* list of all exported SoC specific data */
 extern const struct exynos_pmu_data exynos3250_pmu_data;
 extern const struct exynos_pmu_data exynos4210_pmu_data;
+extern const struct exynos_pmu_data exynos4212_pmu_data;
 extern const struct exynos_pmu_data exynos4412_pmu_data;
 extern const struct exynos_pmu_data exynos5250_pmu_data;
 extern const struct exynos_pmu_data exynos5420_pmu_data;

drivers/soc/samsung/exynos4-pmu.c

···
 	{ PMU_TABLE_END,},
 };
 
-static const struct exynos_pmu_conf exynos4412_pmu_config[] = {
+static const struct exynos_pmu_conf exynos4x12_pmu_config[] = {
 	{ S5P_ARM_CORE0_LOWPWR,			{ 0x0, 0x0, 0x2 } },
 	{ S5P_DIS_IRQ_CORE0,			{ 0x0, 0x0, 0x0 } },
 	{ S5P_DIS_IRQ_CENTRAL0,			{ 0x0, 0x0, 0x0 } },
···
 	{ S5P_GPS_ALIVE_LOWPWR,			{ 0x7, 0x0, 0x0 } },
 	{ S5P_CMU_SYSCLK_ISP_LOWPWR,		{ 0x1, 0x0, 0x0 } },
 	{ S5P_CMU_SYSCLK_GPS_LOWPWR,		{ 0x1, 0x0, 0x0 } },
+	{ PMU_TABLE_END,},
+};
+
+static const struct exynos_pmu_conf exynos4412_pmu_config[] = {
 	{ S5P_ARM_CORE2_LOWPWR,			{ 0x0, 0x0, 0x2 } },
 	{ S5P_DIS_IRQ_CORE2,			{ 0x0, 0x0, 0x0 } },
 	{ S5P_DIS_IRQ_CENTRAL2,			{ 0x0, 0x0, 0x0 } },
···
 	.pmu_config	= exynos4210_pmu_config,
 };
 
+const struct exynos_pmu_data exynos4212_pmu_data = {
+	.pmu_config	= exynos4x12_pmu_config,
+};
+
 const struct exynos_pmu_data exynos4412_pmu_data = {
-	.pmu_config		= exynos4412_pmu_config,
+	.pmu_config		= exynos4x12_pmu_config,
+	.pmu_config_extra	= exynos4412_pmu_config,
 };

drivers/soc/tegra/fuse/fuse-tegra30.c

···
 
 static const struct tegra_fuse_info tegra234_fuse_info = {
 	.read = tegra30_fuse_read,
-	.size = 0x98c,
+	.size = 0xf90,
 	.spare = 0x280,
 };
 

drivers/soc/tegra/fuse/tegra-apbmisc.c

···
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2014, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2023, NVIDIA CORPORATION.  All rights reserved.
  */
 
 #include <linux/export.h>
···
 	switch (tegra_get_chip_id()) {
 	case TEGRA194:
 	case TEGRA234:
+	case TEGRA264:
 		if (tegra_get_platform() == 0)
 			return true;
 

drivers/soc/tegra/pmc.c

···
  * @clk: pointer to pclk clock
  * @soc: pointer to SoC data structure
  * @tz_only: flag specifying if the PMC can only be accessed via TrustZone
- * @debugfs: pointer to debugfs entry
  * @rate: currently configured rate of pclk
  * @suspend_mode: lowest suspend mode available
  * @cpu_good_time: CPU power good time (in microseconds)
···
 	void __iomem *aotag;
 	void __iomem *scratch;
 	struct clk *clk;
-	struct dentry *debugfs;
 
 	const struct tegra_pmc_soc *soc;
 	bool tz_only;
···
 }
 
 DEFINE_SHOW_ATTRIBUTE(powergate);
-
-static int tegra_powergate_debugfs_init(void)
-{
-	pmc->debugfs = debugfs_create_file("powergate", S_IRUGO, NULL, NULL,
-					   &powergate_fops);
-	if (!pmc->debugfs)
-		return -ENOMEM;
-
-	return 0;
-}
 
 static int tegra_powergate_of_get_clks(struct tegra_powergate *pg,
 				       struct device_node *np)
···
 	 */
 	if (pmc->clk) {
 		pmc->clk_nb.notifier_call = tegra_pmc_clk_notify_cb;
-		err = clk_notifier_register(pmc->clk, &pmc->clk_nb);
+		err = devm_clk_notifier_register(&pdev->dev, pmc->clk,
+						 &pmc->clk_nb);
 		if (err) {
 			dev_err(&pdev->dev,
 				"failed to register clk notifier\n");
···
 
 	tegra_pmc_reset_sysfs_init(pmc);
 
-	if (IS_ENABLED(CONFIG_DEBUG_FS)) {
-		err = tegra_powergate_debugfs_init();
-		if (err < 0)
-			goto cleanup_sysfs;
-	}
-
 	err = tegra_pmc_pinctrl_init(pmc);
 	if (err)
-		goto cleanup_debugfs;
+		goto cleanup_sysfs;
 
 	err = tegra_pmc_regmap_init(pmc);
 	if (err < 0)
-		goto cleanup_debugfs;
+		goto cleanup_sysfs;
 
 	err = tegra_powergate_init(pmc, pdev->dev.of_node);
 	if (err < 0)
···
 	if (pmc->soc->set_wake_filters)
 		pmc->soc->set_wake_filters(pmc);
 
+	debugfs_create_file("powergate", 0444, NULL, NULL, &powergate_fops);
+
 	return 0;
 
 cleanup_powergates:
 	tegra_powergate_remove_all(pdev->dev.of_node);
-cleanup_debugfs:
-	debugfs_remove(pmc->debugfs);
 cleanup_sysfs:
 	device_remove_file(&pdev->dev, &dev_attr_reset_reason);
 	device_remove_file(&pdev->dev, &dev_attr_reset_level);
-	clk_notifier_unregister(pmc->clk, &pmc->clk_nb);
 
 	return err;
 }
···
 	TEGRA_WAKE_GPIO("power", 29, 1, TEGRA234_AON_GPIO(EE, 4)),
 	TEGRA_WAKE_GPIO("mgbe", 56, 0, TEGRA234_MAIN_GPIO(Y, 3)),
 	TEGRA_WAKE_IRQ("rtc", 73, 10),
+	TEGRA_WAKE_IRQ("sw-wake", SW_WAKE_ID, 179),
 };
 
 static const struct tegra_pmc_soc tegra234_pmc_soc = {

drivers/soc/ti/Kconfig

···
 
 config TI_PRUSS
 	tristate "TI PRU-ICSS Subsystem Platform drivers"
-	depends on SOC_AM33XX || SOC_AM43XX || SOC_DRA7XX || ARCH_KEYSTONE || ARCH_K3
+	depends on SOC_AM33XX || SOC_AM43XX || SOC_DRA7XX || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST
 	select MFD_SYSCON
 	help
 	  TI PRU-ICSS Subsystem platform specific support.

drivers/soc/ti/pruss.c

···
  * Author(s):
  *	Suman Anna <[e-mail]>
  *	Andrew F. Davis <[e-mail]>
+ *	Tero Kristo <[e-mail]>
  */
 
 #include <linux/clk-provider.h>
···
 #include <linux/pm_runtime.h>
 #include <linux/pruss_driver.h>
 #include <linux/regmap.h>
+#include <linux/remoteproc.h>
 #include <linux/slab.h>
+#include "pruss.h"
 
 /**
  * struct pruss_private_data - PRUSS driver private data
···
 	bool has_core_mux_clock;
 };
 
+/**
+ * pruss_get() - get the pruss for a given PRU remoteproc
+ * @rproc: remoteproc handle of a PRU instance
+ *
+ * Finds the parent pruss device for a PRU given the @rproc handle of the
+ * PRU remote processor. This function increments the pruss device's refcount,
+ * so always use pruss_put() to decrement it back once pruss isn't needed
+ * anymore.
+ *
+ * This API doesn't check if @rproc is valid or not. It is expected the caller
+ * will have done a pru_rproc_get() on @rproc, before calling this API to make
+ * sure that @rproc is valid.
+ *
+ * Return: pruss handle on success, and an ERR_PTR on failure using one
+ * of the following error values
+ *    -EINVAL if invalid parameter
+ *    -ENODEV if PRU device or PRUSS device is not found
+ */
+struct pruss *pruss_get(struct rproc *rproc)
+{
+	struct pruss *pruss;
+	struct device *dev;
+	struct platform_device *ppdev;
+
+	if (IS_ERR_OR_NULL(rproc))
+		return ERR_PTR(-EINVAL);
+
+	dev = &rproc->dev;
+
+	/* make sure it is PRU rproc */
+	if (!dev->parent || !is_pru_rproc(dev->parent))
+		return ERR_PTR(-ENODEV);
+
+	ppdev = to_platform_device(dev->parent->parent);
+	pruss = platform_get_drvdata(ppdev);
+	if (!pruss)
+		return ERR_PTR(-ENODEV);
+
+	get_device(pruss->dev);
+
+	return pruss;
+}
+EXPORT_SYMBOL_GPL(pruss_get);
+
+/**
+ * pruss_put() - decrement pruss device's usecount
+ * @pruss: pruss handle
+ *
+ * Complimentary function for pruss_get(). Needs to be called
+ * after the PRUSS is used, and only if the pruss_get() succeeds.
+ */
+void pruss_put(struct pruss *pruss)
+{
+	if (IS_ERR_OR_NULL(pruss))
+		return;
+
+	put_device(pruss->dev);
+}
+EXPORT_SYMBOL_GPL(pruss_put);
+
+/**
+ * pruss_request_mem_region() - request a memory resource
+ * @pruss: the pruss instance
+ * @mem_id: the memory resource id
+ * @region: pointer to memory region structure to be filled in
+ *
+ * This function allows a client driver to request a memory resource,
+ * and if successful, will let the client driver own the particular
+ * memory region until released using the pruss_release_mem_region()
+ * API.
+ *
+ * Return: 0 if requested memory region is available (in such case pointer to
+ * memory region is returned via @region), an error otherwise
+ */
+int pruss_request_mem_region(struct pruss *pruss, enum pruss_mem mem_id,
+			     struct pruss_mem_region *region)
+{
+	if (!pruss || !region || mem_id >= PRUSS_MEM_MAX)
+		return -EINVAL;
+
+	mutex_lock(&pruss->lock);
+
+	if (pruss->mem_in_use[mem_id]) {
+		mutex_unlock(&pruss->lock);
+		return -EBUSY;
+	}
+
+	*region = pruss->mem_regions[mem_id];
+	pruss->mem_in_use[mem_id] = region;
+
+	mutex_unlock(&pruss->lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(pruss_request_mem_region);
+
+/**
+ * pruss_release_mem_region() - release a memory resource
+ * @pruss: the pruss instance
+ * @region: the memory region to release
+ *
+ * This function is the complimentary function to
+ * pruss_request_mem_region(), and allows the client drivers to
+ * release back a memory resource.
+ *
+ * Return: 0 on success, an error code otherwise
+ */
+int pruss_release_mem_region(struct pruss *pruss,
+			     struct pruss_mem_region *region)
+{
+	int id;
+
+	if (!pruss || !region)
+		return -EINVAL;
+
+	mutex_lock(&pruss->lock);
+
+	/* find out the memory region being released */
+	for (id = 0; id < PRUSS_MEM_MAX; id++) {
+		if (pruss->mem_in_use[id] == region)
+			break;
+	}
+
+	if (id == PRUSS_MEM_MAX) {
+		mutex_unlock(&pruss->lock);
+		return -EINVAL;
+	}
+
+	pruss->mem_in_use[id] = NULL;
+
+	mutex_unlock(&pruss->lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(pruss_release_mem_region);
+
+/**
+ * pruss_cfg_get_gpmux() - get the current GPMUX value for a PRU device
+ * @pruss: pruss instance
+ * @pru_id: PRU identifier (0-1)
+ * @mux: pointer to store the current mux value into
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+int pruss_cfg_get_gpmux(struct pruss *pruss, enum pruss_pru_id pru_id, u8 *mux)
+{
+	int ret;
+	u32 val;
+
+	if (pru_id >= PRUSS_NUM_PRUS || !mux)
+		return -EINVAL;
+
+	ret = pruss_cfg_read(pruss, PRUSS_CFG_GPCFG(pru_id), &val);
+	if (!ret)
+		*mux = (u8)((val & PRUSS_GPCFG_PRU_MUX_SEL_MASK) >>
+			    PRUSS_GPCFG_PRU_MUX_SEL_SHIFT);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(pruss_cfg_get_gpmux);
+
+/**
+ * pruss_cfg_set_gpmux() - set the GPMUX value for a PRU device
+ * @pruss: pruss instance
+ * @pru_id: PRU identifier (0-1)
+ * @mux: new mux value for PRU
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+int pruss_cfg_set_gpmux(struct pruss *pruss, enum pruss_pru_id pru_id, u8 mux)
+{
+	if (mux >= PRUSS_GP_MUX_SEL_MAX ||
+	    pru_id >= PRUSS_NUM_PRUS)
+		return -EINVAL;
+
+	return pruss_cfg_update(pruss, PRUSS_CFG_GPCFG(pru_id),
+				PRUSS_GPCFG_PRU_MUX_SEL_MASK,
+				(u32)mux << PRUSS_GPCFG_PRU_MUX_SEL_SHIFT);
+}
+EXPORT_SYMBOL_GPL(pruss_cfg_set_gpmux);
+
+/**
+ * pruss_cfg_gpimode() - set the GPI mode of the PRU
+ * @pruss: the pruss instance handle
+ * @pru_id: id of the PRU core within the PRUSS
+ * @mode: GPI mode to set
+ *
+ * Sets the GPI mode for a given PRU by programming the
+ * corresponding PRUSS_CFG_GPCFGx register
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+int pruss_cfg_gpimode(struct pruss *pruss, enum pruss_pru_id pru_id,
+		      enum pruss_gpi_mode mode)
+{
+	if (pru_id >= PRUSS_NUM_PRUS || mode >= PRUSS_GPI_MODE_MAX)
+		return -EINVAL;
+
+	return pruss_cfg_update(pruss, PRUSS_CFG_GPCFG(pru_id),
+				PRUSS_GPCFG_PRU_GPI_MODE_MASK,
+				mode << PRUSS_GPCFG_PRU_GPI_MODE_SHIFT);
+}
+EXPORT_SYMBOL_GPL(pruss_cfg_gpimode);
+
+/**
+ * pruss_cfg_miirt_enable() - Enable/disable MII RT Events
+ * @pruss: the pruss instance
+ * @enable: enable/disable
+ *
+ * Enable/disable the MII RT Events for the PRUSS.
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+int pruss_cfg_miirt_enable(struct pruss *pruss, bool enable)
+{
+	u32 set = enable ? PRUSS_MII_RT_EVENT_EN : 0;
+
+	return pruss_cfg_update(pruss, PRUSS_CFG_MII_RT,
+				PRUSS_MII_RT_EVENT_EN, set);
+}
+EXPORT_SYMBOL_GPL(pruss_cfg_miirt_enable);
+
+/**
+ * pruss_cfg_xfr_enable() - Enable/disable XIN XOUT shift functionality
+ * @pruss: the pruss instance
+ * @pru_type: PRU core type identifier
+ * @enable: enable/disable
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+int pruss_cfg_xfr_enable(struct pruss *pruss, enum pru_type pru_type,
+			 bool enable)
+{
+	u32 mask, set;
+
+	switch (pru_type) {
+	case PRU_TYPE_PRU:
+		mask = PRUSS_SPP_XFER_SHIFT_EN;
+		break;
+	case PRU_TYPE_RTU:
+		mask = PRUSS_SPP_RTU_XFR_SHIFT_EN;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	set = enable ? mask : 0;
+
+	return pruss_cfg_update(pruss, PRUSS_CFG_SPP, mask, set);
+}
+EXPORT_SYMBOL_GPL(pruss_cfg_xfr_enable);
+
 static void pruss_of_free_clk_provider(void *data)
 {
 	struct device_node *clk_mux_np = data;
 
 	of_clk_del_provider(clk_mux_np);
 	of_node_put(clk_mux_np);
+}
+
+static void pruss_clk_unregister_mux(void *data)
+{
+	clk_unregister_mux(data);
 }
 
 static int pruss_clk_mux_setup(struct pruss *pruss, struct clk *clk_mux,
···
 		goto put_clk_mux_np;
 	}
 
-	ret = devm_add_action_or_reset(dev, (void(*)(void *))clk_unregister_mux,
-				       clk_mux);
+	ret = devm_add_action_or_reset(dev, pruss_clk_unregister_mux, clk_mux);
 	if (ret) {
 		dev_err(dev, "failed to add clkmux unregister action %d", ret);
 		goto put_clk_mux_np;
···
 		return -ENOMEM;
 
 	pruss->dev = dev;
+	mutex_init(&pruss->lock);
 
 	child = of_get_child_by_name(np, "memories");
 	if (!child) {

drivers/soc/ti/pruss.h

···
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * PRU-ICSS Subsystem user interfaces
+ *
+ * Copyright (C) 2015-2023 Texas Instruments Incorporated - http://www.ti.com
+ *	MD Danish Anwar <[e-mail]>
+ */
+
+#ifndef _SOC_TI_PRUSS_H_
+#define _SOC_TI_PRUSS_H_
+
+#include <linux/bits.h>
+#include <linux/regmap.h>
+
+/*
+ * PRU_ICSS_CFG registers
+ * SYSCFG, ISRP, ISP, IESP, IECP, SCRP applicable on AMxxxx devices only
+ */
+#define PRUSS_CFG_REVID         0x00
+#define PRUSS_CFG_SYSCFG        0x04
+#define PRUSS_CFG_GPCFG(x)      (0x08 + (x) * 4)
+#define PRUSS_CFG_CGR           0x10
+#define PRUSS_CFG_ISRP          0x14
+#define PRUSS_CFG_ISP           0x18
+#define PRUSS_CFG_IESP          0x1C
+#define PRUSS_CFG_IECP          0x20
+#define PRUSS_CFG_SCRP          0x24
+#define PRUSS_CFG_PMAO          0x28
+#define PRUSS_CFG_MII_RT        0x2C
+#define PRUSS_CFG_IEPCLK        0x30
+#define PRUSS_CFG_SPP           0x34
+#define PRUSS_CFG_PIN_MX        0x40
+
+/* PRUSS_GPCFG register bits */
+#define PRUSS_GPCFG_PRU_GPI_MODE_MASK           GENMASK(1, 0)
+#define PRUSS_GPCFG_PRU_GPI_MODE_SHIFT          0
+
+#define PRUSS_GPCFG_PRU_MUX_SEL_SHIFT           26
+#define PRUSS_GPCFG_PRU_MUX_SEL_MASK            GENMASK(29, 26)
+
+/* PRUSS_MII_RT register bits */
+#define PRUSS_MII_RT_EVENT_EN                   BIT(0)
+
+/* PRUSS_SPP register bits */
+#define PRUSS_SPP_XFER_SHIFT_EN                 BIT(1)
+#define PRUSS_SPP_PRU1_PAD_HP_EN                BIT(0)
+#define PRUSS_SPP_RTU_XFR_SHIFT_EN              BIT(3)
+
+/**
+ * pruss_cfg_read() - read a PRUSS CFG sub-module register
+ * @pruss: the pruss instance handle
+ * @reg: register offset within the CFG sub-module
+ * @val: pointer to return the value in
+ *
+ * Reads a given register within the PRUSS CFG sub-module and
+ * returns it through the passed-in @val pointer
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+static int pruss_cfg_read(struct pruss *pruss, unsigned int reg, unsigned int *val)
+{
+	if (IS_ERR_OR_NULL(pruss))
+		return -EINVAL;
+
+	return regmap_read(pruss->cfg_regmap, reg, val);
+}
+
+/**
+ * pruss_cfg_update() - configure a PRUSS CFG sub-module register
+ * @pruss: the pruss instance handle
+ * @reg: register offset within the CFG sub-module
+ * @mask: bit mask to use for programming the @val
+ * @val: value to write
+ *
+ * Programs a given register within the PRUSS CFG sub-module
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+static int pruss_cfg_update(struct pruss *pruss, unsigned int reg,
+			    unsigned int mask, unsigned int val)
+{
+	if (IS_ERR_OR_NULL(pruss))
+		return -EINVAL;
+
+	return regmap_update_bits(pruss->cfg_regmap, reg, mask, val);
+}
+
+#endif  /* _SOC_TI_PRUSS_H_ */

drivers/soc/ti/smartreflex.c

···
 {
 	struct omap_sr *sr_info;
 	struct omap_sr_data *pdata = pdev->dev.platform_data;
-	struct resource *mem;
 	struct dentry *nvalue_dir;
 	int i, ret = 0;
 
···
 		return -EINVAL;
 	}
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	sr_info->base = devm_ioremap_resource(&pdev->dev, mem);
+	sr_info->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(sr_info->base))
 		return PTR_ERR(sr_info->base);
 

drivers/soc/ti/wkup_m3_ipc.c

···
 {
 	m3_ipc->dbg_path = debugfs_create_dir("wkup_m3_ipc", NULL);
 
-	if (!m3_ipc->dbg_path)
+	if (IS_ERR(m3_ipc->dbg_path))
 		return -EINVAL;
 
 	(void)debugfs_create_file("enable_late_halt", 0644,

drivers/soc/xilinx/xlnx_event_manager.c

···
 	struct registered_event_data *eve_data;
 	struct agent_cb *cb_pos;
 	struct agent_cb *cb_next;
+	struct hlist_node *tmp;
 
 	is_need_to_unregister = false;
 
 	/* Check for existing entry in hash table for given cb_type */
-	hash_for_each_possible(reg_driver_map, eve_data, hentry, PM_INIT_SUSPEND_CB) {
+	hash_for_each_possible_safe(reg_driver_map, eve_data, tmp, hentry, PM_INIT_SUSPEND_CB) {
 		if (eve_data->cb_type == PM_INIT_SUSPEND_CB) {
 			/* Delete the list of callback */
 			list_for_each_entry_safe(cb_pos, cb_next, &eve_data->cb_list_head, list) {
···
 	u64 key = ((u64)node_id << 32U) | (u64)event;
 	struct agent_cb *cb_pos;
 	struct agent_cb *cb_next;
+	struct hlist_node *tmp;
 
 	is_need_to_unregister = false;
 
 	/* Check for existing entry in hash table for given key id */
-	hash_for_each_possible(reg_driver_map, eve_data, hentry, key) {
+	hash_for_each_possible_safe(reg_driver_map, eve_data, tmp, hentry, key) {
 		if (eve_data->key == key) {
 			/* Delete the list of callback */
 			list_for_each_entry_safe(cb_pos, cb_next, &eve_data->cb_list_head, list) {

drivers/soc/xilinx/zynqmp_power.c

···
 	} else if (ret != -EACCES && ret != -ENODEV) {
 		dev_err(&pdev->dev, "Failed to Register with Xilinx Event manager %d\n", ret);
 		return ret;
-	} else if (of_find_property(pdev->dev.of_node, "mboxes", NULL)) {
+	} else if (of_property_present(pdev->dev.of_node, "mboxes")) {
 		zynqmp_pm_init_suspend_work =
 			devm_kzalloc(&pdev->dev,
 				     sizeof(struct zynqmp_pm_work_struct),
···
 			dev_err(&pdev->dev, "Failed to request rx channel\n");
 			return PTR_ERR(rx_chan);
 		}
-	} else if (of_find_property(pdev->dev.of_node, "interrupts", NULL)) {
+	} else if (of_property_present(pdev->dev.of_node, "interrupts")) {
 		irq = platform_get_irq(pdev, 0);
 		if (irq <= 0)
 			return -ENXIO;

drivers/tee/optee/smc_abi.c

···
 	 * This uses the GFP_DMA flag to ensure we are allocated memory in the
 	 * 32-bit space since TF-A cannot map memory beyond the 32-bit boundary.
 	 */
-	data_buf = kmalloc(fw->size, GFP_KERNEL | GFP_DMA);
+	data_buf = kmemdup(fw->data, fw->size, GFP_KERNEL | GFP_DMA);
 	if (!data_buf) {
 		rc = -ENOMEM;
 		goto fw_err;
 	}
-	memcpy(data_buf, fw->data, fw->size);
 	data_pa = virt_to_phys(data_buf);
 	reg_pair_from_64(&data_pa_high, &data_pa_low, data_pa);
 	reg_pair_from_64(&data_size_high, &data_size_low, data_size);

drivers/vfio/fsl-mc/vfio_fsl_mc.c

···
 	mutex_destroy(&vdev->igate);
 }
 
-static int vfio_fsl_mc_remove(struct fsl_mc_device *mc_dev)
+static void vfio_fsl_mc_remove(struct fsl_mc_device *mc_dev)
 {
 	struct device *dev = &mc_dev->dev;
 	struct vfio_fsl_mc_device *vdev = dev_get_drvdata(dev);
···
 	vfio_unregister_group_dev(&vdev->vdev);
 	dprc_remove_devices(mc_dev, NULL, 0);
 	vfio_put_device(&vdev->vdev);
-	return 0;
 }
 
 static const struct vfio_device_ops vfio_fsl_mc_ops = {

include/dt-bindings/arm/qcom,ids.h

···
 #define QCOM_ID_SM8350			439
 #define QCOM_ID_QCM2290			441
 #define QCOM_ID_SM6115			444
+#define QCOM_ID_IPQ5010			446
+#define QCOM_ID_IPQ5018			447
+#define QCOM_ID_IPQ5028			448
 #define QCOM_ID_SC8280XP		449
 #define QCOM_ID_IPQ6005			453
 #define QCOM_ID_QRB5165			455
···
 #define QCOM_ID_SM8450_3		482
 #define QCOM_ID_SC7280			487
 #define QCOM_ID_SC7180P			495
+#define QCOM_ID_IPQ5000			503
+#define QCOM_ID_IPQ0509			504
+#define QCOM_ID_IPQ0518			505
 #define QCOM_ID_SM6375			507
 #define QCOM_ID_IPQ9514			510
 #define QCOM_ID_IPQ9550			511
···
 #define QCOM_ID_IPQ9570			513
 #define QCOM_ID_IPQ9574			514
 #define QCOM_ID_SM8550			519
+#define QCOM_ID_IPQ5016			520
 #define QCOM_ID_IPQ9510			521
 #define QCOM_ID_QRB4210			523
 #define QCOM_ID_QRB2210			524
···
 #define QCOM_ID_QRU1000			539
 #define QCOM_ID_QDU1000			545
 #define QCOM_ID_QDU1010			587
+#define QCOM_ID_IPQ5019			569
 #define QCOM_ID_QRU1032			588
 #define QCOM_ID_QRU1052			589
 #define QCOM_ID_QRU1062			590
 #define QCOM_ID_IPQ5332			592
 #define QCOM_ID_IPQ5322			593
+#define QCOM_ID_IPQ5312			594
+#define QCOM_ID_IPQ5302			595
+#define QCOM_ID_IPQ5300			624
 
 /*
  * The board type and revision information, used by Qualcomm bootloaders and

include/linux/arm-cci.h

···
 }
 #endif
 
+void cci_enable_port_for_self(void);
+
 #define cci_disable_port_by_device(dev) \
 	__cci_control_port_by_device(dev, false)
 #define cci_enable_port_by_device(dev) \

include/linux/fsl/mc.h

···
 	struct device_driver driver;
 	const struct fsl_mc_device_id *match_id_table;
 	int (*probe)(struct fsl_mc_device *dev);
-	int (*remove)(struct fsl_mc_device *dev);
+	void (*remove)(struct fsl_mc_device *dev);
 	void (*shutdown)(struct fsl_mc_device *dev);
 	int (*suspend)(struct fsl_mc_device *dev, pm_message_t state);
 	int (*resume)(struct fsl_mc_device *dev);

include/linux/pruss_driver.h

···
 #ifndef _PRUSS_DRIVER_H_
 #define _PRUSS_DRIVER_H_
 
+#include <linux/mutex.h>
+#include <linux/remoteproc/pruss.h>
 #include <linux/types.h>
+#include <linux/err.h>
+
+/*
+ * enum pruss_gp_mux_sel - PRUSS GPI/O Mux modes for the
+ * PRUSS_GPCFG0/1 registers
+ *
+ * NOTE: The below defines are the most common values, but there
+ * are some exceptions like on 66AK2G, where the RESERVED and MII2
+ * values are interchanged. Also, this bit-field does not exist on
+ * AM335x SoCs
+ */
+enum pruss_gp_mux_sel {
+	PRUSS_GP_MUX_SEL_GP,
+	PRUSS_GP_MUX_SEL_ENDAT,
+	PRUSS_GP_MUX_SEL_RESERVED,
+	PRUSS_GP_MUX_SEL_SD,
+	PRUSS_GP_MUX_SEL_MII2,
+	PRUSS_GP_MUX_SEL_MAX,
+};
+
+/*
+ * enum pruss_gpi_mode - PRUSS GPI configuration modes, used
+ *			 to program the PRUSS_GPCFG0/1 registers
+ */
+enum pruss_gpi_mode {
+	PRUSS_GPI_MODE_DIRECT,
+	PRUSS_GPI_MODE_PARALLEL,
+	PRUSS_GPI_MODE_28BIT_SHIFT,
+	PRUSS_GPI_MODE_MII,
+	PRUSS_GPI_MODE_MAX,
+};
+
+/**
+ * enum pru_type - PRU core type identifier
+ *
+ * @PRU_TYPE_PRU: Programmable Real-time Unit
+ * @PRU_TYPE_RTU: Auxiliary Programmable Real-Time Unit
+ * @PRU_TYPE_TX_PRU: Transmit Programmable Real-Time Unit
+ * @PRU_TYPE_MAX: just keep this one at the end
+ */
+enum pru_type {
+	PRU_TYPE_PRU,
+	PRU_TYPE_RTU,
+	PRU_TYPE_TX_PRU,
+	PRU_TYPE_MAX,
+};
 
 /*
  * enum pruss_mem - PRUSS memory range identifiers
···
  * @cfg_base: base iomap for CFG region
  * @cfg_regmap: regmap for config region
  * @mem_regions: data for each of the PRUSS memory regions
+ * @mem_in_use: to indicate if memory resource is in use
+ * @lock: mutex to serialize access to resources
  * @core_clk_mux: clk handle for PRUSS CORE_CLK_MUX
  * @iep_clk_mux: clk handle for PRUSS IEP_CLK_MUX
  */
···
 	void __iomem *cfg_base;
 	struct regmap *cfg_regmap;
 	struct pruss_mem_region mem_regions[PRUSS_MEM_MAX];
+	struct pruss_mem_region *mem_in_use[PRUSS_MEM_MAX];
+	struct mutex lock; /* PRU resource lock */
 	struct clk *core_clk_mux;
 	struct clk *iep_clk_mux;
 };
+
+#if IS_ENABLED(CONFIG_TI_PRUSS)
+
+struct pruss *pruss_get(struct rproc *rproc);
+void pruss_put(struct pruss *pruss);
+int pruss_request_mem_region(struct pruss *pruss, enum pruss_mem mem_id,
+			     struct pruss_mem_region *region);
+int pruss_release_mem_region(struct pruss *pruss,
+			     struct pruss_mem_region *region);
+int pruss_cfg_get_gpmux(struct pruss *pruss, enum pruss_pru_id pru_id, u8 *mux);
+int pruss_cfg_set_gpmux(struct pruss *pruss, enum pruss_pru_id pru_id, u8 mux);
+int pruss_cfg_gpimode(struct pruss *pruss, enum pruss_pru_id pru_id,
+		      enum pruss_gpi_mode mode);
+int pruss_cfg_miirt_enable(struct pruss *pruss, bool enable);
+int pruss_cfg_xfr_enable(struct pruss *pruss, enum pru_type pru_type,
+			 bool enable);
+
+#else
+
+static inline struct pruss *pruss_get(struct rproc *rproc)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline void pruss_put(struct pruss *pruss) { }
+
+static inline int pruss_request_mem_region(struct pruss *pruss,
+					   enum pruss_mem mem_id,
+					   struct pruss_mem_region *region)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int pruss_release_mem_region(struct pruss *pruss,
+					   struct pruss_mem_region *region)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int pruss_cfg_get_gpmux(struct pruss *pruss,
+				      enum pruss_pru_id pru_id, u8 *mux)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline int pruss_cfg_set_gpmux(struct pruss *pruss,
+				      enum pruss_pru_id pru_id, u8 mux)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline int pruss_cfg_gpimode(struct pruss *pruss,
+				    enum pruss_pru_id pru_id,
+				    enum pruss_gpi_mode mode)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline int pruss_cfg_miirt_enable(struct pruss *pruss, bool enable)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline int pruss_cfg_xfr_enable(struct pruss *pruss,
+				       enum pru_type pru_type,
+				       bool enable);
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+#endif /* CONFIG_TI_PRUSS */
 
 #endif	/* _PRUSS_DRIVER_H_ */

include/linux/scmi_protocol.h

···
  * @num_domains_get: get the count of powercap domains provided by SCMI.
  * @info_get: get the information for the specified domain.
  * @cap_get: get the current CAP value for the specified domain.
+ *	     On SCMI platforms supporting powercap zone disabling, this could
+ *	     report a zero value for a zone where powercapping is disabled.
  * @cap_set: set the CAP value for the specified domain to the provided value;
  *	     if the domain supports setting the CAP with an asynchronous command
  *	     this request will finally trigger an asynchronous transfer, but, if
  *	     @ignore_dresp here is set to true, this call will anyway return
  *	     immediately without waiting for the related delayed response.
+ *	     Note that the powercap requested value must NOT be zero, even if
+ *	     the platform supports disabling a powercap by setting its cap to
+ *	     zero (since SCMI v3.2): there are dedicated operations that should
+ *	     be used for that. (@cap_enable_set/get)
+ * @cap_enable_set: enable or disable the powercapping on the specified domain,
+ *		    if supported by the SCMI platform implementation.
+ *		    Note that, by the SCMI specification, the platform can
+ *		    silently ignore our disable request and decide to enforce
+ *		    anyway some other powercap value requested by another agent
+ *		    on the system: for this reason @cap_get and @cap_enable_get
+ *		    will always report the final platform view of the powercaps.
+ * @cap_enable_get: get the current CAP enable status for the specified domain.
  * @pai_get: get the current PAI value for the specified domain.
  * @pai_set: set the PAI value for the specified domain to the provided value.
  * @measurements_get: retrieve the current average power measurements for the
···
 		       u32 *power_cap);
 	int (*cap_set)(const struct scmi_protocol_handle *ph, u32 domain_id,
 		       u32 power_cap, bool ignore_dresp);
+	int (*cap_enable_set)(const struct scmi_protocol_handle *ph,
+			      u32 domain_id, bool enable);
+	int (*cap_enable_get)(const struct scmi_protocol_handle *ph,
+			      u32 domain_id, bool *enable);
 	int (*pai_get)(const struct scmi_protocol_handle *ph, u32 domain_id,
 		       u32 *pai);
 	int (*pai_set)(const struct scmi_protocol_handle *ph, u32 domain_id,

include/linux/soc/mediatek/mtk-mmsys.h

···
 	DDP_COMPONENT_CCORR,
 	DDP_COMPONENT_COLOR0,
 	DDP_COMPONENT_COLOR1,
-	DDP_COMPONENT_DITHER,
-	DDP_COMPONENT_DITHER0 = DDP_COMPONENT_DITHER,
+	DDP_COMPONENT_DITHER0,
 	DDP_COMPONENT_DITHER1,
 	DDP_COMPONENT_DP_INTF0,
 	DDP_COMPONENT_DP_INTF1,

include/linux/soc/qcom/smem.h

···
 
 phys_addr_t qcom_smem_virt_to_phys(void *p);
 
+int qcom_smem_get_soc_id(u32 *id);
+
 #endif

include/linux/soc/qcom/socinfo.h

···
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __QCOM_SOCINFO_H__
+#define __QCOM_SOCINFO_H__
+
+/*
+ * SMEM item id, used to acquire handles to respective
+ * SMEM region.
+ */
+#define SMEM_HW_SW_BUILD_ID		137
+
+#define SMEM_SOCINFO_BUILD_ID_LENGTH	32
+#define SMEM_SOCINFO_CHIP_ID_LENGTH	32
+
+/* Socinfo SMEM item structure */
+struct socinfo {
+	__le32 fmt;
+	__le32 id;
+	__le32 ver;
+	char build_id[SMEM_SOCINFO_BUILD_ID_LENGTH];
+	/* Version 2 */
+	__le32 raw_id;
+	__le32 raw_ver;
+	/* Version 3 */
+	__le32 hw_plat;
+	/* Version 4 */
+	__le32 plat_ver;
+	/* Version 5 */
+	__le32 accessory_chip;
+	/* Version 6 */
+	__le32 hw_plat_subtype;
+	/* Version 7 */
+	__le32 pmic_model;
+	__le32 pmic_die_rev;
+	/* Version 8 */
+	__le32 pmic_model_1;
+	__le32 pmic_die_rev_1;
+	__le32 pmic_model_2;
+	__le32 pmic_die_rev_2;
+	/* Version 9 */
+	__le32 foundry_id;
+	/* Version 10 */
+	__le32 serial_num;
+	/* Version 11 */
+	__le32 num_pmics;
+	__le32 pmic_array_offset;
+	/* Version 12 */
+	__le32 chip_family;
+	__le32 raw_device_family;
+	__le32 raw_device_num;
+	/* Version 13 */
+	__le32 nproduct_id;
+	char chip_id[SMEM_SOCINFO_CHIP_ID_LENGTH];
+	/* Version 14 */
+	__le32 num_clusters;
+	__le32 ncluster_array_offset;
+	__le32 num_subset_parts;
+	__le32 nsubset_parts_array_offset;
+	/* Version 15 */
+	__le32 nmodem_supported;
+	/* Version 16 */
+	__le32  feature_code;
+	__le32  pcode;
+	__le32  npartnamemap_offset;
+	__le32  nnum_partname_mapping;
+	/* Version 17 */
+	__le32 oem_variant;
+	/* Version 18 */
+	__le32 num_kvps;
+	__le32 kvps_offset;
+	/* Version 19 */
+	__le32 num_func_clusters;
+	__le32 boot_cluster;
+	__le32 boot_core;
+};
+
+#endif

include/linux/tegra-icc.h

···
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2022-2023 NVIDIA CORPORATION.  All rights reserved.
+ */
+
+#ifndef LINUX_TEGRA_ICC_H
+#define LINUX_TEGRA_ICC_H
+
+enum tegra_icc_client_type {
+	TEGRA_ICC_NONE,
+	TEGRA_ICC_NISO,
+	TEGRA_ICC_ISO_DISPLAY,
+	TEGRA_ICC_ISO_VI,
+	TEGRA_ICC_ISO_AUDIO,
+	TEGRA_ICC_ISO_VIFAL,
+};
+
+/* ICC ID's for MC client's used in BPMP */
+#define TEGRA_ICC_BPMP_DEBUG		1
+#define TEGRA_ICC_BPMP_CPU_CLUSTER0	2
+#define TEGRA_ICC_BPMP_CPU_CLUSTER1	3
+#define TEGRA_ICC_BPMP_CPU_CLUSTER2	4
+#define TEGRA_ICC_BPMP_GPU		5
+#define TEGRA_ICC_BPMP_CACTMON		6
+#define TEGRA_ICC_BPMP_DISPLAY		7
+#define TEGRA_ICC_BPMP_VI		8
+#define TEGRA_ICC_BPMP_EQOS		9
+#define TEGRA_ICC_BPMP_PCIE_0		10
+#define TEGRA_ICC_BPMP_PCIE_1		11
+#define TEGRA_ICC_BPMP_PCIE_2		12
+#define TEGRA_ICC_BPMP_PCIE_3		13
+#define TEGRA_ICC_BPMP_PCIE_4		14
+#define TEGRA_ICC_BPMP_PCIE_5		15
+#define TEGRA_ICC_BPMP_PCIE_6		16
+#define TEGRA_ICC_BPMP_PCIE_7		17
+#define TEGRA_ICC_BPMP_PCIE_8		18
+#define TEGRA_ICC_BPMP_PCIE_9		19
+#define TEGRA_ICC_BPMP_PCIE_10		20
+#define TEGRA_ICC_BPMP_DLA_0		21
+#define TEGRA_ICC_BPMP_DLA_1		22
+#define TEGRA_ICC_BPMP_SDMMC_1		23
+#define TEGRA_ICC_BPMP_SDMMC_2		24
+#define TEGRA_ICC_BPMP_SDMMC_3		25
+#define TEGRA_ICC_BPMP_SDMMC_4		26
+#define TEGRA_ICC_BPMP_NVDEC		27
+#define TEGRA_ICC_BPMP_NVENC		28
+#define TEGRA_ICC_BPMP_NVJPG_0		29
+#define TEGRA_ICC_BPMP_NVJPG_1		30
+#define TEGRA_ICC_BPMP_OFAA		31
+#define TEGRA_ICC_BPMP_XUSB_HOST	32
+#define TEGRA_ICC_BPMP_XUSB_DEV		33
+#define TEGRA_ICC_BPMP_TSEC		34
+#define TEGRA_ICC_BPMP_VIC		35
+#define TEGRA_ICC_BPMP_APE		36
+#define TEGRA_ICC_BPMP_APEDMA		37
+#define TEGRA_ICC_BPMP_SE		38
+#define TEGRA_ICC_BPMP_ISP		39
+#define TEGRA_ICC_BPMP_HDA		40
+#define TEGRA_ICC_BPMP_VIFAL		41
+#define TEGRA_ICC_BPMP_VI2FAL		42
+#define TEGRA_ICC_BPMP_VI2		43
+#define TEGRA_ICC_BPMP_RCE		44
+#define TEGRA_ICC_BPMP_PVA		45
+
+#endif /* LINUX_TEGRA_ICC_H */

include/soc/tegra/fuse.h

···
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2012-2023, NVIDIA CORPORATION.  All rights reserved.
  */
 
 #ifndef __SOC_TEGRA_FUSE_H__
···
 #define TEGRA186	0x18
 #define TEGRA194	0x19
 #define TEGRA234	0x23
+#define TEGRA264	0x26
 
 #define TEGRA_FUSE_SKU_CALIB_0	0xf0
 #define TEGRA30_FUSE_SATA_CALIB	0x124

include/soc/tegra/mc.h

···
 #include <linux/irq.h>
 #include <linux/reset-controller.h>
 #include <linux/types.h>
+#include <linux/tegra-icc.h>
 
 struct clk;
 struct device;
···
 
 struct tegra_mc_client {
 	unsigned int id;
+	unsigned int bpmp_id;
+	enum tegra_icc_client_type type;
 	const char *name;
 	/*
 	 * For Tegra210 and earlier, this is the SWGROUP ID used for IOVA translations in the
···
 	int (*set)(struct icc_node *src, struct icc_node *dst);
 	int (*aggregate)(struct icc_node *node, u32 tag, u32 avg_bw,
 			 u32 peak_bw, u32 *agg_avg, u32 *agg_peak);
+	struct icc_node* (*xlate)(struct of_phandle_args *spec, void *data);
 	struct icc_node_data *(*xlate_extended)(struct of_phandle_args *spec,
 						void *data);
+	int (*get_bw)(struct icc_node *node, u32 *avg, u32 *peak);
 };
 
 struct tegra_mc_ops {
···
 };
 
 struct tegra_mc {
+	struct tegra_bpmp *bpmp;
 	struct device *dev;
 	struct tegra_smmu *smmu;
 	struct gart_device *gart;
···
 
 	struct tegra_mc_timing *timings;
 	unsigned int num_timings;
+	unsigned int num_channels;
 
+	bool bwmgr_mrq_supported;
 	struct reset_controller_dev reset;
 
 	struct icc_provider provider;