Merge tag 'arm-drivers-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
"Updates for SoC specific drivers include a few subsystems that have
their own maintainers but send them through the soc tree:

SCMI firmware:
- add support for a completion interrupt

Reset controllers:
- new driver for BCM4908
- new devm_reset_control_get_optional_exclusive_released() function

Memory controllers:
- Renesas RZ/G2 support
- Tegra124 interconnect support
- Allow more drivers to be loadable modules

TEE/optee firmware:
- minor code cleanup

The other half of this is SoC specific drivers that do not belong into
any other subsystem, most of them living in drivers/soc:

- Allwinner/sunxi power management work
- Allwinner H616 support

- ASpeed AST2600 system identification support

- AT91 SAMA7G5 SoC ID driver
- AT91 SoC driver cleanups

- Broadcom BCM4908 power management bus support

- Marvell mbus cleanups

- Mediatek MT8167 power domain support

- Qualcomm socinfo driver support for PMIC
- Qualcomm SoC identification for many more products

- TI Keystone driver cleanups for PRUSS and elsewhere"

* tag 'arm-drivers-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (89 commits)
soc: aspeed: socinfo: Add new systems
soc: aspeed: snoop: Add clock control logic
memory: tegra186-emc: Replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE
memory: samsung: exynos5422-dmc: Correct function names in kerneldoc
memory: ti-emif-pm: Drop of_match_ptr from of_device_id table
optee: simplify i2c access
drivers: soc: atmel: fix type for same7
tee: optee: remove need_resched() before cond_resched()
soc: qcom: ocmem: don't return NULL in of_get_ocmem
optee: sync OP-TEE headers
tee: optee: fix 'physical' typos
drivers: optee: use flexible-array member instead of zero-length array
tee: fix some comment typos in header files
soc: ti: k3-ringacc: Use of_device_get_match_data()
soc: ti: pruss: Refactor the CFG sub-module init
soc: mediatek: pm-domains: Don't print an error if child domain is deferred
soc: mediatek: pm-domains: Add domain regulator supply
dt-bindings: power: Add domain regulator supply
soc: mediatek: cmdq: Remove cmdq_pkt_flush()
soc: mediatek: pm-domains: Add support for mt8167
...

Documentation/devicetree/bindings/arm/arm,scmi.txt

···
 
 - mbox-names: shall be "tx" or "rx" depending on mboxes entries.
 
+- interrupts : when using smc or hvc transports, this optional
+	 property indicates that msg completion by the platform is indicated
+	 by an interrupt rather than by the return of the smc call. This
+	 should not be used except when the platform requires such behavior.
+
+- interrupt-names : if "interrupts" is present, interrupt-names must also
+	 be present and have the value "a2p".
+
 See Documentation/devicetree/bindings/mailbox/mailbox.txt for more details
 about the generic mailbox controller and client driver bindings.
 

Documentation/devicetree/bindings/arm/atmel-sysregs.txt

···
 Atmel system registers
 
 Chipid required properties:
-- compatible: Should be "atmel,sama5d2-chipid"
+- compatible: Should be "atmel,sama5d2-chipid" or "microchip,sama7g5-chipid"
 - reg : Should contain registers location and length
 
 PIT Timer required properties:

Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml

···
       - qcom,sc7180-llcc
       - qcom,sdm845-llcc
       - qcom,sm8150-llcc
+      - qcom,sm8250-llcc
 
   reg:
     items:

Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml

···
     oneOf:
       - const: allwinner,sun8i-a23-rsb
       - items:
-          - const: allwinner,sun8i-a83t-rsb
+          - enum:
+              - allwinner,sun8i-a83t-rsb
+              - allwinner,sun50i-h616-rsb
           - const: allwinner,sun8i-a23-rsb
 
   reg:

Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml

···
   compatible:
     items:
       - enum:
+          - renesas,r8a774a1-rpc-if       # RZ/G2M
+          - renesas,r8a774b1-rpc-if       # RZ/G2N
+          - renesas,r8a774c0-rpc-if       # RZ/G2E
+          - renesas,r8a774e1-rpc-if       # RZ/G2H
           - renesas,r8a77970-rpc-if       # R-Car V3M
           - renesas,r8a77980-rpc-if       # R-Car V3H
           - renesas,r8a77995-rpc-if       # R-Car D3
-      - const: renesas,rcar-gen3-rpc-if   # a generic R-Car gen3 device
+      - const: renesas,rcar-gen3-rpc-if   # a generic R-Car gen3 or RZ/G2 device
 
   reg:
     items:

Documentation/devicetree/bindings/power/brcm,bcm-pmb.yaml

···
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/brcm,bcm-pmb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom PMB (Power Management Bus) controller
+
+description: This document describes Broadcom's PMB controller. It supports
+  powering various types of connected devices (e.g. PCIe, USB, SATA).
+
+maintainers:
+  - Rafał Miłecki <[e-mail]>
+
+properties:
+  compatible:
+    enum:
+      - brcm,bcm4908-pmb
+
+  reg:
+    description: register space of one or more buses
+    maxItems: 1
+
+  big-endian:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: Flag to use for block working in big endian mode.
+
+  "#power-domain-cells":
+    description: cell specifies device ID (see bcm-pmb.h)
+    const: 1
+
+required:
+  - reg
+  - "#power-domain-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/soc/bcm-pmb.h>
+
+    pmb: power-controller@802800e0 {
+        compatible = "brcm,bcm4908-pmb";
+        reg = <0x802800e0 0x40>;
+        #power-domain-cells = <1>;
+    };
+
+    foo {
+        power-domains = <&pmb BCM_PMB_PCIE0>;
+    };

Documentation/devicetree/bindings/power/mediatek,power-controller.yaml

···
 
   compatible:
     enum:
+      - mediatek,mt8167-power-controller
       - mediatek,mt8173-power-controller
       - mediatek,mt8183-power-controller
       - mediatek,mt8192-power-controller
···
       reg:
         description: |
           Power domain index. Valid values are defined in:
+              "include/dt-bindings/power/mt8167-power.h" - for MT8167 type power domain.
               "include/dt-bindings/power/mt8173-power.h" - for MT8173 type power domain.
               "include/dt-bindings/power/mt8183-power.h" - for MT8183 type power domain.
               "include/dt-bindings/power/mt8192-power.h" - for MT8192 type power domain.
···
           In order to follow properly the power-up sequencing, the clocks must
           be specified by order, adding first the BASIC clocks followed by the
           SUSBSYS clocks.
+
+      domain-supply:
+        description: domain regulator supply.
 
       mediatek,infracfg:
         $ref: /schemas/types.yaml#/definitions/phandle
···
               be specified by order, adding first the BASIC clocks followed by the
               SUSBSYS clocks.
 
+          domain-supply:
+            description: domain regulator supply.
+
           mediatek,infracfg:
             $ref: /schemas/types.yaml#/definitions/phandle
             description: phandle to the device containing the INFRACFG register range.
···
                   In order to follow properly the power-up sequencing, the clocks must
                   be specified by order, adding first the BASIC clocks followed by the
                   SUSBSYS clocks.
+
+              domain-supply:
+                description: domain regulator supply.
 
               mediatek,infracfg:
                 $ref: /schemas/types.yaml#/definitions/phandle

Documentation/devicetree/bindings/power/qcom,rpmpd.yaml

···
       - qcom,msm8916-rpmpd
       - qcom,msm8939-rpmpd
       - qcom,msm8976-rpmpd
+      - qcom,msm8994-rpmpd
       - qcom,msm8996-rpmpd
       - qcom,msm8998-rpmpd
       - qcom,qcs404-rpmpd

Documentation/devicetree/bindings/reset/brcm,bcm4908-misc-pcie-reset.yaml

···
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/brcm,bcm4908-misc-pcie-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom MISC block PCIe reset controller
+
+description: This document describes reset controller handling PCIe PERST#
+  signals. On BCM4908 it's a part of the MISC block.
+
+maintainers:
+  - Rafał Miłecki <[e-mail]>
+
+properties:
+  compatible:
+    const: brcm,bcm4908-misc-pcie-reset
+
+  reg:
+    maxItems: 1
+
+  "#reset-cells":
+    description: PCIe core id
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    reset-controller@ff802644 {
+        compatible = "brcm,bcm4908-misc-pcie-reset";
+        reg = <0xff802644 0x04>;
+        #reset-cells = <1>;
+    };

Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt

···
-Hisilicon System Reset Controller
-======================================
-
-Please also refer to reset.txt in this directory for common reset
-controller binding usage.
-
-The reset controller registers are part of the system-ctl block on
-hi3660 and hi3670 SoCs.
-
-Required properties:
-- compatible: should be one of the following:
-		 "hisilicon,hi3660-reset" for HI3660
-		 "hisilicon,hi3670-reset", "hisilicon,hi3660-reset" for HI3670
-- hisi,rst-syscon: phandle of the reset's syscon.
-- #reset-cells : Specifies the number of cells needed to encode a
-  reset source.  The type shall be a <u32> and the value shall be 2.
-
-	 Cell #1 : offset of the reset assert control
-	           register from the syscon register base
-		   offset + 4: deassert control register
-		   offset + 8: status control register
-	 Cell #2 : bit position of the reset in the reset control register
-
-Example:
-	iomcu: iomcu@ffd7e000 {
-		compatible = "hisilicon,hi3660-iomcu", "syscon";
-		reg = <0x0 0xffd7e000 0x0 0x1000>;
-	};
-
-	iomcu_rst: iomcu_rst_controller {
-		compatible = "hisilicon,hi3660-reset";
-		hisi,rst-syscon = <&iomcu>;
-		#reset-cells = <2>;
-	};
-
-Specifying reset lines connected to IP modules
-==============================================
-example:
-
-        i2c0: i2c@..... {
-                ...
-		resets = <&iomcu_rst 0x20 3>; /* offset: 0x20; bit: 3 */
-                ...
-        };

Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/hisilicon,hi3660-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Hisilicon System Reset Controller
+
+maintainers:
+  - Wei Xu <[e-mail]>
+
+description: |
+  Please also refer to reset.txt in this directory for common reset
+  controller binding usage.
+  The reset controller registers are part of the system-ctl block on
+  hi3660 and hi3670 SoCs.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: hisilicon,hi3660-reset
+      - items:
+          - const: hisilicon,hi3670-reset
+          - const: hisilicon,hi3660-reset
+
+  hisilicon,rst-syscon:
+    description: phandle of the reset's syscon.
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  '#reset-cells':
+    description: |
+      Specifies the number of cells needed to encode a reset source.
+      Cell #1 : offset of the reset assert control register from the syscon
+                register base
+                offset + 4: deassert control register
+                offset + 8: status control register
+      Cell #2 : bit position of the reset in the reset control register
+    const: 2
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/hi3660-clock.h>
+
+    iomcu: iomcu@ffd7e000 {
+        compatible = "hisilicon,hi3660-iomcu", "syscon";
+        reg = <0xffd7e000 0x1000>;
+    };
+
+    iomcu_rst: iomcu_rst_controller {
+        compatible = "hisilicon,hi3660-reset";
+        hisilicon,rst-syscon = <&iomcu>;
+        #reset-cells = <2>;
+    };
+
+    /* Specifying reset lines connected to IP modules */
+    i2c@ffd71000 {
+        compatible = "snps,designware-i2c";
+        reg = <0xffd71000 0x1000>;
+        interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+        clock-frequency = <400000>;
+        clocks = <&crg_ctrl HI3660_CLK_GATE_I2C0>;
+        resets = <&iomcu_rst 0x20 3>;
+        pinctrl-names = "default";
+        pinctrl-0 = <&i2c0_pmx_func &i2c0_cfg_func>;
+        status = "disabled";
+    };
+...

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

···
 		    "qcom,sdm845-aoss-qmp"
 		    "qcom,sm8150-aoss-qmp"
 		    "qcom,sm8250-aoss-qmp"
+		    "qcom,sm8350-aoss-qmp"
 
 - reg:
 	Usage: required

Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt

···
-Qualcomm Shared Memory Manager binding
-
-This binding describes the Qualcomm Shared Memory Manager, used to share data
-between various subsystems and OSes in Qualcomm platforms.
-
-- compatible:
-	Usage: required
-	Value type: <stringlist>
-	Definition: must be:
-		    "qcom,smem"
-
-- memory-region:
-	Usage: required
-	Value type: <prop-encoded-array>
-	Definition: handle to memory reservation for main SMEM memory region.
-
-- qcom,rpm-msg-ram:
-	Usage: required
-	Value type: <prop-encoded-array>
-	Definition: handle to RPM message memory resource
-
-- hwlocks:
-	Usage: required
-	Value type: <prop-encoded-array>
-	Definition: reference to a hwspinlock used to protect allocations from
-		    the shared memory
-
-= EXAMPLE
-The following example shows the SMEM setup for MSM8974, with a main SMEM region
-at 0xfa00000 and the RPM message ram at 0xfc428000:
-
-	reserved-memory {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		smem_region: smem@fa00000 {
-			reg = <0xfa00000 0x200000>;
-			no-map;
-		};
-	};
-
-	smem@fa00000 {
-		compatible = "qcom,smem";
-
-		memory-region = <&smem_region>;
-		qcom,rpm-msg-ram = <&rpm_msg_ram>;
-
-		hwlocks = <&tcsr_mutex 3>;
-	};
-
-	soc {
-		rpm_msg_ram: memory@fc428000 {
-			compatible = "qcom,rpm-msg-ram";
-			reg = <0xfc428000 0x4000>;
-		};
-	};

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

···
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/soc/qcom/qcom,smem.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm Shared Memory Manager binding
+
+maintainers:
+  - Andy Gross <[e-mail]>
+  - Bjorn Andersson <[e-mail]>
+
+description: |
+  This binding describes the Qualcomm Shared Memory Manager, used to share data
+  between various subsystems and OSes in Qualcomm platforms.
+
+properties:
+  compatible:
+    const: qcom,smem
+
+  memory-region:
+    maxItems: 1
+    description: handle to memory reservation for main SMEM memory region.
+
+  hwlocks:
+    maxItems: 1
+
+  qcom,rpm-msg-ram:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: handle to RPM message memory resource
+
+required:
+  - compatible
+  - memory-region
+  - hwlocks
+
+additionalProperties: false
+
+examples:
+  - |
+    reserved-memory {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        ranges;
+
+        smem_region: smem@fa00000 {
+            reg = <0xfa00000 0x200000>;
+            no-map;
+        };
+    };
+
+    smem {
+        compatible = "qcom,smem";
+
+        memory-region = <&smem_region>;
+        qcom,rpm-msg-ram = <&rpm_msg_ram>;
+
+        hwlocks = <&tcsr_mutex 3>;
+    };
+
+    soc {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        ranges;
+
+        rpm_msg_ram: sram@fc428000 {
+            compatible = "qcom,rpm-msg-ram";
+            reg = <0xfc428000 0x4000>;
+        };
+    };
+
+...

Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml

···
   ranges:
     maxItems: 1
 
+  dma-ranges:
+    maxItems: 1
+
   power-domains:
     description: |
       This property is as per sci-pm-domain.txt.
···
       that is common to all the PRU cores. This should be represented as an
       interrupt-controller node.
 
+    allOf:
+      - $ref: /schemas/interrupt-controller/ti,pruss-intc.yaml#
+
     type: object
 
   mdio@[a-f0-9]+$:
···
       inactive by using the standard DT string property, "status". The ICSSG IP
       present on K3 SoCs have additional auxiliary PRU cores with slightly
       different IP integration.
+
+    allOf:
+      - $ref: /schemas/remoteproc/ti,pru-rproc.yaml#
 
     type: object
 
···
             reg = <0x32000 0x58>;
         };
 
+        pruss_intc: interrupt-controller@20000 {
+            compatible = "ti,pruss-intc";
+            reg = <0x20000 0x2000>;
+            interrupt-controller;
+            #interrupt-cells = <3>;
+            interrupts = <20 21 22 23 24 25 26 27>;
+            interrupt-names = "host_intr0", "host_intr1",
+                              "host_intr2", "host_intr3",
+                              "host_intr4", "host_intr5",
+                              "host_intr6", "host_intr7";
+        };
+
+        pru0: pru@34000 {
+            compatible = "ti,am3356-pru";
+            reg = <0x34000 0x2000>,
+                  <0x22000 0x400>,
+                  <0x22400 0x100>;
+            reg-names = "iram", "control", "debug";
+            firmware-name = "am335x-pru0-fw";
+        };
+
+        pru1: pru@38000 {
+            compatible = "ti,am3356-pru";
+            reg = <0x38000 0x2000>,
+                  <0x24000 0x400>,
+                  <0x24400 0x100>;
+            reg-names = "iram", "control", "debug";
+            firmware-name = "am335x-pru1-fw";
+        };
+
         pruss_mdio: mdio@32400 {
             compatible = "ti,davinci_mdio";
             reg = <0x32400 0x90>;
···
         pruss1_mii_rt: mii-rt@32000 {
             compatible = "ti,pruss-mii", "syscon";
             reg = <0x32000 0x58>;
+        };
+
+        pruss1_intc: interrupt-controller@20000 {
+            compatible = "ti,pruss-intc";
+            reg = <0x20000 0x2000>;
+            interrupt-controller;
+            #interrupt-cells = <3>;
+            interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-names = "host_intr0", "host_intr1",
+                              "host_intr2", "host_intr3",
+                              "host_intr4",
+                              "host_intr6", "host_intr7";
+            ti,irqs-reserved = /bits/ 8 <0x20>; /* BIT(5) */
+        };
+
+        pru1_0: pru@34000 {
+            compatible = "ti,am4376-pru";
+            reg = <0x34000 0x3000>,
+                  <0x22000 0x400>,
+                  <0x22400 0x100>;
+            reg-names = "iram", "control", "debug";
+            firmware-name = "am437x-pru1_0-fw";
+        };
+
+        pru1_1: pru@38000 {
+            compatible = "ti,am4376-pru";
+            reg = <0x38000 0x3000>,
+                  <0x24000 0x400>,
+                  <0x24400 0x100>;
+            reg-names = "iram", "control", "debug";
+            firmware-name = "am437x-pru1_1-fw";
         };
 
         pruss1_mdio: mdio@32400 {

Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml

···
       - items:
           - const: allwinner,suniv-f1c100s-system-control
           - const: allwinner,sun4i-a10-system-control
+      - const: allwinner,sun50i-h616-system-control
 
   reg:
     maxItems: 1

MAINTAINERS

···
 S:	Maintained
 F:	drivers/firmware/broadcom/*
 
+BROADCOM PMB (POWER MANAGEMENT BUS) DRIVER
+M:	Rafał Miłecki <[e-mail]>
+M:	Florian Fainelli <[e-mail]>
+M:	[e-mail]
+L:	[e-mail]
+S:	Maintained
+T:	git git://github.com/broadcom/stblinux.git
+F:	drivers/soc/bcm/bcm-pmb.c
+F:	include/dt-bindings/soc/bcm-pmb.h
+
 BROADCOM SPECIFIC AMBA DRIVER (BCMA)
 M:	Rafał Miłecki <[e-mail]>
 L:	[e-mail]
···
 
 SYSTEM CONTROL & POWER/MANAGEMENT INTERFACE (SCPI/SCMI) Message Protocol drivers
 M:	Sudeep Holla <[e-mail]>
+R:	Cristian Marussi <[e-mail]>
 L:	[e-mail]
 S:	Maintained
 F:	Documentation/devicetree/bindings/arm/arm,sc[mp]i.txt
···
 F:	drivers/cpufreq/sc[mp]i-cpufreq.c
 F:	drivers/firmware/arm_scmi/
 F:	drivers/firmware/arm_scpi.c
+F:	drivers/regulator/scmi-regulator.c
 F:	drivers/reset/reset-scmi.c
 F:	include/linux/sc[mp]i_protocol.h
 F:	include/trace/events/scmi.h

drivers/bus/mvebu-mbus.c

···
 
 	mbus->sdramwins_base = ioremap(sdramwins_phys_base, sdramwins_size);
 	if (!mbus->sdramwins_base) {
-		iounmap(mbus_state.mbuswins_base);
+		iounmap(mbus->mbuswins_base);
 		return -ENOMEM;
 	}
 

drivers/bus/sunxi-rsb.c

···
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 #include <linux/reset.h>
 #include <linux/slab.h>
···
 	struct completion complete;
 	struct mutex lock;
 	unsigned int status;
+	u32 clk_freq;
 };
 
 /* bus / slave device related functions */
···
 {
 	const struct sunxi_rsb_driver *drv = to_sunxi_rsb_driver(dev->driver);
 
-	return drv->remove(to_sunxi_rsb_device(dev));
+	drv->remove(to_sunxi_rsb_device(dev));
+
+	return 0;
 }
 
 static struct bus_type sunxi_rsb_bus = {
···
 		return -EINVAL;
 	}
 
+	ret = pm_runtime_resume_and_get(rsb->dev);
+	if (ret)
+		return ret;
+
 	mutex_lock(&rsb->lock);
 
 	writel(addr, rsb->regs + RSB_ADDR);
···
 
 unlock:
 	mutex_unlock(&rsb->lock);
+
+	pm_runtime_mark_last_busy(rsb->dev);
+	pm_runtime_put_autosuspend(rsb->dev);
 
 	return ret;
 }
···
 		return -EINVAL;
 	}
 
+	ret = pm_runtime_resume_and_get(rsb->dev);
+	if (ret)
+		return ret;
+
 	mutex_lock(&rsb->lock);
 
 	writel(addr, rsb->regs + RSB_ADDR);
···
 	ret = _sunxi_rsb_run_xfer(rsb);
 
 	mutex_unlock(&rsb->lock);
+
+	pm_runtime_mark_last_busy(rsb->dev);
+	pm_runtime_put_autosuspend(rsb->dev);
 
 	return ret;
 }
···
 	return 0;
 }
 
-static const struct of_device_id sunxi_rsb_of_match_table[] = {
-	{ .compatible = "allwinner,sun8i-a23-rsb" },
-	{}
-};
-MODULE_DEVICE_TABLE(of, sunxi_rsb_of_match_table);
+static int sunxi_rsb_hw_init(struct sunxi_rsb *rsb)
+{
+	struct device *dev = rsb->dev;
+	unsigned long p_clk_freq;
+	u32 clk_delay, reg;
+	int clk_div, ret;
+
+	ret = clk_prepare_enable(rsb->clk);
+	if (ret) {
+		dev_err(dev, "failed to enable clk: %d\n", ret);
+		return ret;
+	}
+
+	ret = reset_control_deassert(rsb->rstc);
+	if (ret) {
+		dev_err(dev, "failed to deassert reset line: %d\n", ret);
+		goto err_clk_disable;
+	}
+
+	/* reset the controller */
+	writel(RSB_CTRL_SOFT_RST, rsb->regs + RSB_CTRL);
+	readl_poll_timeout(rsb->regs + RSB_CTRL, reg,
+			   !(reg & RSB_CTRL_SOFT_RST), 1000, 100000);
+
+	/*
+	 * Clock frequency and delay calculation code is from
+	 * Allwinner U-boot sources.
+	 *
+	 * From A83 user manual:
+	 * bus clock frequency = parent clock frequency / (2 * (divider + 1))
+	 */
+	p_clk_freq = clk_get_rate(rsb->clk);
+	clk_div = p_clk_freq / rsb->clk_freq / 2;
+	if (!clk_div)
+		clk_div = 1;
+	else if (clk_div > RSB_CCR_MAX_CLK_DIV + 1)
+		clk_div = RSB_CCR_MAX_CLK_DIV + 1;
+
+	clk_delay = clk_div >> 1;
+	if (!clk_delay)
+		clk_delay = 1;
+
+	dev_info(dev, "RSB running at %lu Hz\n", p_clk_freq / clk_div / 2);
+	writel(RSB_CCR_SDA_OUT_DELAY(clk_delay) | RSB_CCR_CLK_DIV(clk_div - 1),
+	       rsb->regs + RSB_CCR);
+
+	return 0;
+
+err_clk_disable:
+	clk_disable_unprepare(rsb->clk);
+
+	return ret;
+}
+
+static void sunxi_rsb_hw_exit(struct sunxi_rsb *rsb)
+{
+	/* Keep the clock and PM reference counts consistent. */
+	if (pm_runtime_status_suspended(rsb->dev))
+		pm_runtime_resume(rsb->dev);
+	reset_control_assert(rsb->rstc);
+	clk_disable_unprepare(rsb->clk);
+}
+
+static int __maybe_unused sunxi_rsb_runtime_suspend(struct device *dev)
+{
+	struct sunxi_rsb *rsb = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(rsb->clk);
+
+	return 0;
+}
+
+static int __maybe_unused sunxi_rsb_runtime_resume(struct device *dev)
+{
+	struct sunxi_rsb *rsb = dev_get_drvdata(dev);
+
+	return clk_prepare_enable(rsb->clk);
+}
+
+static int __maybe_unused sunxi_rsb_suspend(struct device *dev)
+{
+	struct sunxi_rsb *rsb = dev_get_drvdata(dev);
+
+	sunxi_rsb_hw_exit(rsb);
+
+	return 0;
+}
+
+static int __maybe_unused sunxi_rsb_resume(struct device *dev)
+{
+	struct sunxi_rsb *rsb = dev_get_drvdata(dev);
+
+	return sunxi_rsb_hw_init(rsb);
+}
 
 static int sunxi_rsb_probe(struct platform_device *pdev)
 {
···
 	struct device_node *np = dev->of_node;
 	struct resource *r;
 	struct sunxi_rsb *rsb;
-	unsigned long p_clk_freq;
-	u32 clk_delay, clk_freq = 3000000;
-	int clk_div, irq, ret;
-	u32 reg;
+	u32 clk_freq = 3000000;
+	int irq, ret;
 
 	of_property_read_u32(np, "clock-frequency", &clk_freq);
 	if (clk_freq > RSB_MAX_FREQ) {
···
 		return -ENOMEM;
 
 	rsb->dev = dev;
+	rsb->clk_freq = clk_freq;
 	platform_set_drvdata(pdev, rsb);
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	rsb->regs = devm_ioremap_resource(dev, r);
···
 		return ret;
 	}
 
-	ret = clk_prepare_enable(rsb->clk);
-	if (ret) {
-		dev_err(dev, "failed to enable clk: %d\n", ret);
-		return ret;
-	}
-
-	p_clk_freq = clk_get_rate(rsb->clk);
-
 	rsb->rstc = devm_reset_control_get(dev, NULL);
 	if (IS_ERR(rsb->rstc)) {
 		ret = PTR_ERR(rsb->rstc);
 		dev_err(dev, "failed to retrieve reset controller: %d\n", ret);
-		goto err_clk_disable;
-	}
-
-	ret = reset_control_deassert(rsb->rstc);
-	if (ret) {
-		dev_err(dev, "failed to deassert reset line: %d\n", ret);
-		goto err_clk_disable;
+		return ret;
 	}
 
 	init_completion(&rsb->complete);
 	mutex_init(&rsb->lock);
 
-	/* reset the controller */
-	writel(RSB_CTRL_SOFT_RST, rsb->regs + RSB_CTRL);
-	readl_poll_timeout(rsb->regs + RSB_CTRL, reg,
-			   !(reg & RSB_CTRL_SOFT_RST), 1000, 100000);
-
-	/*
-	 * Clock frequency and delay calculation code is from
-	 * Allwinner U-boot sources.
-	 *
-	 * From A83 user manual:
-	 * bus clock frequency = parent clock frequency / (2 * (divider + 1))
-	 */
-	clk_div = p_clk_freq / clk_freq / 2;
-	if (!clk_div)
-		clk_div = 1;
-	else if (clk_div > RSB_CCR_MAX_CLK_DIV + 1)
-		clk_div = RSB_CCR_MAX_CLK_DIV + 1;
-
-	clk_delay = clk_div >> 1;
-	if (!clk_delay)
-		clk_delay = 1;
-
-	dev_info(dev, "RSB running at %lu Hz\n", p_clk_freq / clk_div / 2);
-	writel(RSB_CCR_SDA_OUT_DELAY(clk_delay) | RSB_CCR_CLK_DIV(clk_div - 1),
-	       rsb->regs + RSB_CCR);
-
 	ret = devm_request_irq(dev, irq, sunxi_rsb_irq, 0, RSB_CTRL_NAME, rsb);
 	if (ret) {
 		dev_err(dev, "can't register interrupt handler irq %d: %d\n",
 			irq, ret);
-		goto err_reset_assert;
+		return ret;
 	}
+
+	ret = sunxi_rsb_hw_init(rsb);
+	if (ret)
+		return ret;
 
 	/* initialize all devices on the bus into RSB mode */
 	ret = sunxi_rsb_init_device_mode(rsb);
 	if (ret)
 		dev_warn(dev, "Initialize device mode failed: %d\n", ret);
 
+	pm_suspend_ignore_children(dev, true);
+	pm_runtime_set_active(dev);
+	pm_runtime_set_autosuspend_delay(dev, MSEC_PER_SEC);
+	pm_runtime_use_autosuspend(dev);
+	pm_runtime_enable(dev);
+
 	of_rsb_register_devices(rsb);
 
 	return 0;
-
-err_reset_assert:
-	reset_control_assert(rsb->rstc);
-
-err_clk_disable:
-	clk_disable_unprepare(rsb->clk);
-
-	return ret;
 }
 
 static int sunxi_rsb_remove(struct platform_device *pdev)
···
 	struct sunxi_rsb *rsb = platform_get_drvdata(pdev);
 
 	device_for_each_child(rsb->dev, NULL, sunxi_rsb_remove_devices);
-	reset_control_assert(rsb->rstc);
-	clk_disable_unprepare(rsb->clk);
+	pm_runtime_disable(&pdev->dev);
+	sunxi_rsb_hw_exit(rsb);
 
 	return 0;
 }
 
+static void sunxi_rsb_shutdown(struct platform_device *pdev)
+{
+	struct sunxi_rsb *rsb = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+	sunxi_rsb_hw_exit(rsb);
+}
+
+static const struct dev_pm_ops sunxi_rsb_dev_pm_ops = {
+	SET_RUNTIME_PM_OPS(sunxi_rsb_runtime_suspend,
+			   sunxi_rsb_runtime_resume, NULL)
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(sunxi_rsb_suspend, sunxi_rsb_resume)
+};
+
+static const struct of_device_id sunxi_rsb_of_match_table[] = {
+	{ .compatible = "allwinner,sun8i-a23-rsb" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, sunxi_rsb_of_match_table);
+
 static struct platform_driver sunxi_rsb_driver = {
 	.probe = sunxi_rsb_probe,
 	.remove	= sunxi_rsb_remove,
+	.shutdown = sunxi_rsb_shutdown,
 	.driver	= {
 		.name = RSB_CTRL_NAME,
 		.of_match_table = sunxi_rsb_of_match_table,
+		.pm = &sunxi_rsb_dev_pm_ops,
 	},
 };
 

drivers/clk/tegra/Kconfig

···
 	depends on ARCH_TEGRA_124_SOC || ARCH_TEGRA_210_SOC
 	select PM_OPP
 	def_bool y
+
+config TEGRA124_CLK_EMC
+	bool

drivers/clk/tegra/Makefile

···
 obj-$(CONFIG_ARCH_TEGRA_114_SOC)	+= clk-tegra114.o
 obj-$(CONFIG_ARCH_TEGRA_124_SOC)	+= clk-tegra124.o
 obj-$(CONFIG_TEGRA_CLK_DFLL)		+= clk-tegra124-dfll-fcpu.o
-obj-$(CONFIG_TEGRA124_EMC)		+= clk-tegra124-emc.o
+obj-$(CONFIG_TEGRA124_CLK_EMC)		+= clk-tegra124-emc.o
 obj-$(CONFIG_ARCH_TEGRA_132_SOC)	+= clk-tegra124.o
 obj-y					+= cvb.o
 obj-$(CONFIG_ARCH_TEGRA_210_SOC)	+= clk-tegra210.o

drivers/clk/tegra/clk-tegra124-emc.c

···
 #include <linux/clk-provider.h>
 #include <linux/clk.h>
 #include <linux/clkdev.h>
+#include <linux/clk/tegra.h>
 #include <linux/delay.h>
+#include <linux/export.h>
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of_address.h>
···
 #include <linux/string.h>
 
 #include <soc/tegra/fuse.h>
-#include <soc/tegra/emc.h>
 
 #include "clk.h"
 
···
 	int num_timings;
 	struct emc_timing *timings;
 	spinlock_t *lock;
+
+	tegra124_emc_prepare_timing_change_cb *prepare_timing_change;
+	tegra124_emc_complete_timing_change_cb *complete_timing_change;
 };
 
 /* Common clock framework callback implementations */
···
 	if (tegra->emc)
 		return tegra->emc;
 
+	if (!tegra->prepare_timing_change || !tegra->complete_timing_change)
+		return NULL;
+
 	if (!tegra->emc_node)
 		return NULL;
 
···
 
 	div = timing->parent_rate / (timing->rate / 2) - 2;
 
-	err = tegra_emc_prepare_timing_change(emc, timing->rate);
+	err = tegra->prepare_timing_change(emc, timing->rate);
 	if (err)
 		return err;
 
···
 
 	spin_unlock_irqrestore(tegra->lock, flags);
 
-	tegra_emc_complete_timing_change(emc, timing->rate);
+	tegra->complete_timing_change(emc, timing->rate);
 
 	clk_hw_reparent(&tegra->hw, __clk_get_hw(timing->parent));
 	clk_disable_unprepare(tegra->prev_parent);
···
 	.get_parent = emc_get_parent,
 };
 
-struct clk *tegra_clk_register_emc(void __iomem *base, struct device_node *np,
-				   spinlock_t *lock)
+struct clk *tegra124_clk_register_emc(void __iomem *base, struct device_node *np,
+				      spinlock_t *lock)
 {
 	struct tegra_clk_emc *tegra;
 	struct clk_init_data init;
···
 
 	return clk;
 };
+
+void tegra124_clk_set_emc_callbacks(tegra124_emc_prepare_timing_change_cb *prep_cb,
+				    tegra124_emc_complete_timing_change_cb *complete_cb)
+{
+	struct clk *clk = __clk_lookup("emc");
+	struct tegra_clk_emc *tegra;
+	struct clk_hw *hw;
+
+	if (clk) {
+		hw = __clk_get_hw(clk);
+		tegra = container_of(hw, struct tegra_clk_emc, hw);
+
+		tegra->prepare_timing_change = prep_cb;
+		tegra->complete_timing_change = complete_cb;
+	}
+}
+EXPORT_SYMBOL_GPL(tegra124_clk_set_emc_callbacks);
+
+bool tegra124_clk_emc_driver_available(struct clk_hw *hw)
+{
+	struct tegra_clk_emc *tegra = container_of(hw, struct tegra_clk_emc, hw);
+
+	return tegra->prepare_timing_change && tegra->complete_timing_change;
+}

drivers/clk/tegra/clk-tegra124.c

···
 	writel(plld_base, clk_base + PLLD_BASE);
 }
 
+static struct clk *tegra124_clk_src_onecell_get(struct of_phandle_args *clkspec,
+						void *data)
+{
+	struct clk_hw *hw;
+	struct clk *clk;
+
+	clk = of_clk_src_onecell_get(clkspec, data);
+	if (IS_ERR(clk))
+		return clk;
+
+	hw = __clk_get_hw(clk);
+
+	if (clkspec->args[0] == TEGRA124_CLK_EMC) {
+		if (!tegra124_clk_emc_driver_available(hw))
+			return ERR_PTR(-EPROBE_DEFER);
+	}
+
+	return clk;
+}
+
 /**
  * tegra124_132_clock_init_post - clock initialization postamble for T124/T132
  * @np: struct device_node * of the DT node for the SoC CAR IP block
···
 				  &pll_x_params);
 	tegra_init_special_resets(1, tegra124_reset_assert,
 				  tegra124_reset_deassert);
-	tegra_add_of_provider(np, of_clk_src_onecell_get);
+	tegra_add_of_provider(np, tegra124_clk_src_onecell_get);
 
-	clks[TEGRA124_CLK_EMC] = tegra_clk_register_emc(clk_base, np,
-							&emc_lock);
+	clks[TEGRA124_CLK_EMC] = tegra124_clk_register_emc(clk_base, np,
+							   &emc_lock);
 
 	tegra_register_devclks(devclks, ARRAY_SIZE(devclks));
 

drivers/clk/tegra/clk.h

···
 			void __iomem *pmc_base, struct tegra_clk *tegra_clks,
 			struct tegra_clk_pll_params *pll_params);
 
-#ifdef CONFIG_TEGRA124_EMC
-struct clk *tegra_clk_register_emc(void __iomem *base, struct device_node *np,
-				   spinlock_t *lock);
+#ifdef CONFIG_TEGRA124_CLK_EMC
+struct clk *tegra124_clk_register_emc(void __iomem *base, struct device_node *np,
+				      spinlock_t *lock);
+bool tegra124_clk_emc_driver_available(struct clk_hw *emc_hw);
 #else
-static inline struct clk *tegra_clk_register_emc(void __iomem *base,
-						 struct device_node *np,
-						 spinlock_t *lock)
+static inline struct clk *
+tegra124_clk_register_emc(void __iomem *base, struct device_node *np,
+			  spinlock_t *lock)
 {
 	return NULL;
+}
+
+static inline bool tegra124_clk_emc_driver_available(struct clk_hw *emc_hw)
+{
+	return false;
 }
 #endif
 

drivers/firmware/arm_scmi/driver.c

···
 	struct scmi_info *info = platform_get_drvdata(pdev);
 	struct idr *idr = &info->tx_idr;
 
-	scmi_notification_exit(&info->handle);
-
 	mutex_lock(&scmi_list_mutex);
 	if (info->users)
 		ret = -EBUSY;
···
 
 	if (ret)
 		return ret;
+
+	scmi_notification_exit(&info->handle);
 
 	/* Safe to free channels since no more users */
 	ret = idr_for_each(idr, info->desc->ops->chan_free, idr);

drivers/firmware/arm_scmi/smc.c

···
 #include <linux/arm-smccc.h>
 #include <linux/device.h>
 #include <linux/err.h>
+#include <linux/interrupt.h>
 #include <linux/mutex.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/slab.h>
 
 #include "common.h"
···
  * @shmem: Transmit/Receive shared memory area
  * @shmem_lock: Lock to protect access to Tx/Rx shared memory area
  * @func_id: smc/hvc call function id
+ * @irq: Optional; employed when platforms indicates msg completion by intr.
+ * @tx_complete: Optional, employed only when irq is valid.
  */
 
 struct scmi_smc {
···
 	struct scmi_shared_mem __iomem *shmem;
 	struct mutex shmem_lock;
 	u32 func_id;
+	int irq;
+	struct completion tx_complete;
 };
+
+static irqreturn_t smc_msg_done_isr(int irq, void *data)
+{
+	struct scmi_smc *scmi_info = data;
+
+	complete(&scmi_info->tx_complete);
+
+	return IRQ_HANDLED;
+}
 
 static bool smc_chan_available(struct device *dev, int idx)
 {
···
 	struct resource res;
 	struct device_node *np;
 	u32 func_id;
-	int ret;
+	int ret, irq;
 
 	if (!tx)
 		return -ENODEV;
···
 	ret = of_property_read_u32(dev->of_node, "arm,smc-id", &func_id);
 	if (ret < 0)
 		return ret;
+
+	/*
+	 * If there is an interrupt named "a2p", then the service and
+	 * completion of a message is signaled by an interrupt rather than by
+	 * the return of the SMC call.
+	 */
+	irq = of_irq_get_byname(cdev->of_node, "a2p");
+	if (irq > 0) {
+		ret = devm_request_irq(dev, irq, smc_msg_done_isr,
+				       IRQF_NO_SUSPEND,
+				       dev_name(dev), scmi_info);
+		if (ret) {
+			dev_err(dev, "failed to setup SCMI smc irq\n");
+			return ret;
+		}
+		init_completion(&scmi_info->tx_complete);
+		scmi_info->irq = irq;
+	}
 
 	scmi_info->func_id = func_id;
 	scmi_info->cinfo = cinfo;
···
 
 	shmem_tx_prepare(scmi_info->shmem, xfer);
 
+	if (scmi_info->irq)
+		reinit_completion(&scmi_info->tx_complete);
+
 	arm_smccc_1_1_invoke(scmi_info->func_id, 0, 0, 0, 0, 0, 0, 0, &res);
+
+	if (scmi_info->irq)
+		wait_for_completion(&scmi_info->tx_complete);
+
 	scmi_rx_callback(scmi_info->cinfo, shmem_read_header(scmi_info->shmem));
 
 	mutex_unlock(&scmi_info->shmem_lock);

drivers/memory/Kconfig

···
 	  memory devices such as NAND and SRAM.
 
 config MTK_SMI
-	bool "Mediatek SoC Memory Controller driver" if COMPILE_TEST
+	tristate "MediaTek SoC Memory Controller driver" if COMPILE_TEST
 	depends on ARCH_MEDIATEK || COMPILE_TEST
 	help
 	  This driver is for the Memory Controller module in MediaTek SoCs,
···
 	depends on ARCH_RENESAS || COMPILE_TEST
 	select REGMAP_MMIO
 	help
-	  This supports Renesas R-Car Gen3 RPC-IF which provides either SPI
-	  host or HyperFlash. You'll have to select individual components
-	  under the corresponding menu.
+	  This supports Renesas R-Car Gen3 or RZ/G2 RPC-IF which provides
+	  either SPI host or HyperFlash. You'll have to select individual
+	  components under the corresponding menu.
 
 config STM32_FMC2_EBI
 	tristate "Support for FMC2 External Bus Interface on STM32MP SoCs"

drivers/memory/emif.c

···
 };
 
 static struct emif_data *emif1;
-static spinlock_t	emif_lock;
+static DEFINE_SPINLOCK(emif_lock);
 static unsigned long	irq_state;
 static u32		t_ck; /* DDR clock period in ps */
 static LIST_HEAD(device_list);
···
 	/* One-time actions taken on probing the first device */
 	if (!emif1) {
 		emif1 = emif;
-		spin_lock_init(&emif_lock);
 
 		/*
 		 * TODO: register notifiers for frequency and voltage

drivers/memory/mtk-smi.c

···
 
 int mtk_smi_larb_get(struct device *larbdev)
 {
-	int ret = pm_runtime_get_sync(larbdev);
+	int ret = pm_runtime_resume_and_get(larbdev);
 
 	return (ret < 0) ? ret : 0;
 }
···
 	int ret;
 
 	/* Power on smi-common. */
-	ret = pm_runtime_get_sync(larb->smi_common_dev);
+	ret = pm_runtime_resume_and_get(larb->smi_common_dev);
 	if (ret < 0) {
 		dev_err(dev, "Failed to pm get for smi-common(%d).\n", ret);
 		return ret;
···
 	}
 };
 
+static struct platform_driver * const smidrivers[] = {
+	&mtk_smi_common_driver,
+	&mtk_smi_larb_driver,
+};
+
 static int __init mtk_smi_init(void)
 {
-	int ret;
-
-	ret = platform_driver_register(&mtk_smi_common_driver);
-	if (ret != 0) {
-		pr_err("Failed to register SMI driver\n");
-		return ret;
-	}
-
-	ret = platform_driver_register(&mtk_smi_larb_driver);
-	if (ret != 0) {
-		pr_err("Failed to register SMI-LARB driver\n");
-		goto err_unreg_smi;
-	}
-	return ret;
-
-err_unreg_smi:
-	platform_driver_unregister(&mtk_smi_common_driver);
-	return ret;
+	return platform_register_drivers(smidrivers, ARRAY_SIZE(smidrivers));
 }
-
 module_init(mtk_smi_init);
+
+static void __exit mtk_smi_exit(void)
+{
+	platform_unregister_drivers(smidrivers, ARRAY_SIZE(smidrivers));
+}
+module_exit(mtk_smi_exit);
+
+MODULE_DESCRIPTION("MediaTek SMI driver");
+MODULE_LICENSE("GPL v2");

drivers/memory/samsung/exynos5422-dmc.c

···
 }
 
 /**
- * find_target_freq_id() - Finds requested frequency in local DMC configuration
+ * find_target_freq_idx() - Finds requested frequency in local DMC configuration
  * @dmc:	device for which the information is checked
  * @target_rate:	requested frequency in KHz
  *
···
 };
 
 /**
- * exynos5_dmc_align_initial_frequency() - Align initial frequency value
+ * exynos5_dmc_align_init_freq() - Align initial frequency value
  * @dmc:	device for which the frequency is going to be set
  * @bootloader_init_freq:	initial frequency set by the bootloader in KHz
  *

drivers/memory/tegra/Kconfig

···
 	  external memory.
 
 config TEGRA124_EMC
-	bool "NVIDIA Tegra124 External Memory Controller driver"
+	tristate "NVIDIA Tegra124 External Memory Controller driver"
 	default y
 	depends on TEGRA_MC && ARCH_TEGRA_124_SOC
+	select TEGRA124_CLK_EMC
+	select PM_OPP
 	help
 	  This driver is for the External Memory Controller (EMC) found on
 	  Tegra124 chips. The EMC controls the external DRAM on the board.

drivers/memory/tegra/mc.c

···
 	if (!rst_ops)
 		return -ENODEV;
 
+	/* DMA flushing will fail if reset is already asserted */
+	if (rst_ops->reset_status) {
+		/* check whether reset is asserted */
+		if (rst_ops->reset_status(mc, rst))
+			return 0;
+	}
+
 	if (rst_ops->block_dma) {
 		/* block clients DMA requests */
 		err = rst_ops->block_dma(mc, rst);

drivers/memory/tegra/tegra124-emc.c

···
 #include <linux/clk-provider.h>
 #include <linux/clk.h>
 #include <linux/clkdev.h>
+#include <linux/clk/tegra.h>
 #include <linux/debugfs.h>
 #include <linux/delay.h>
+#include <linux/interconnect-provider.h>
 #include <linux/io.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
+#include <linux/pm_opp.h>
 #include <linux/sort.h>
 #include <linux/string.h>
 
-#include <soc/tegra/emc.h>
 #include <soc/tegra/fuse.h>
 #include <soc/tegra/mc.h>
+
+#include "mc.h"
 
 #define EMC_FBIO_CFG5				0x104
 #define	EMC_FBIO_CFG5_DRAM_TYPE_MASK		0x3
 #define	EMC_FBIO_CFG5_DRAM_TYPE_SHIFT		0
+#define EMC_FBIO_CFG5_DRAM_WIDTH_X64		BIT(4)
 
 #define EMC_INTSTATUS				0x0
 #define EMC_INTSTATUS_CLKCHANGE_COMPLETE	BIT(4)
···
 	u32 emc_zcal_interval;
 };
 
+enum emc_rate_request_type {
+	EMC_RATE_DEBUG,
+	EMC_RATE_ICC,
+	EMC_RATE_TYPE_MAX,
+};
+
+struct emc_rate_request {
+	unsigned long min_rate;
+	unsigned long max_rate;
+};
+
 struct tegra_emc {
 	struct device *dev;
 
···
 	struct clk *clk;
 
 	enum emc_dram_type dram_type;
+	unsigned int dram_bus_width;
 	unsigned int dram_num;
 
 	struct emc_timing last_timing;
···
 		unsigned long min_rate;
 		unsigned long max_rate;
 	} debugfs;
+
+	struct icc_provider provider;
+
+	/*
+	 * There are multiple sources in the EMC driver which could request
+	 * a min/max clock rate, these rates are contained in this array.
+	 */
+	struct emc_rate_request requested_rate[EMC_RATE_TYPE_MAX];
+
+	/* protect shared rate-change code path */
+	struct mutex rate_lock;
 };
 
 /* Timing change sequence functions */
···
 	return timing;
 }
 
-int tegra_emc_prepare_timing_change(struct tegra_emc *emc,
-				    unsigned long rate)
+static int tegra_emc_prepare_timing_change(struct tegra_emc *emc,
+					   unsigned long rate)
 {
 	struct emc_timing *timing = tegra_emc_find_timing(emc, rate);
 	struct emc_timing *last = &emc->last_timing;
···
 	return 0;
 }
 
-void tegra_emc_complete_timing_change(struct tegra_emc *emc,
-				      unsigned long rate)
+static void tegra_emc_complete_timing_change(struct tegra_emc *emc,
+					     unsigned long rate)
 {
 	struct emc_timing *timing = tegra_emc_find_timing(emc, rate);
 	struct emc_timing *last = &emc->last_timing;
···
 static int emc_init(struct tegra_emc *emc)
 {
 	emc->dram_type = readl(emc->regs + EMC_FBIO_CFG5);
+
+	if (emc->dram_type & EMC_FBIO_CFG5_DRAM_WIDTH_X64)
+		emc->dram_bus_width = 64;
+	else
+		emc->dram_bus_width = 32;
+
+	dev_info(emc->dev, "%ubit DRAM bus\n", emc->dram_bus_width);
+
 	emc->dram_type &= EMC_FBIO_CFG5_DRAM_TYPE_MASK;
 	emc->dram_type >>= EMC_FBIO_CFG5_DRAM_TYPE_SHIFT;
 
···
 	{ .compatible = "nvidia,tegra132-emc" },
 	{}
 };
+MODULE_DEVICE_TABLE(of, tegra_emc_of_match);
 
 static struct device_node *
 tegra_emc_find_node_by_ram_code(struct device_node *node, u32 ram_code)
···
 	}
 
 	return NULL;
+}
+
+static void tegra_emc_rate_requests_init(struct tegra_emc *emc)
+{
+	unsigned int i;
+
+	for (i = 0; i < EMC_RATE_TYPE_MAX; i++) {
+		emc->requested_rate[i].min_rate = 0;
+		emc->requested_rate[i].max_rate = ULONG_MAX;
+	}
+}
+
+static int emc_request_rate(struct tegra_emc *emc,
+			    unsigned long new_min_rate,
+			    unsigned long new_max_rate,
+			    enum emc_rate_request_type type)
+{
+	struct emc_rate_request *req = emc->requested_rate;
+	unsigned long min_rate = 0, max_rate = ULONG_MAX;
+	unsigned int i;
+	int err;
+
+	/* select minimum and maximum rates among the requested rates */
+	for (i = 0; i < EMC_RATE_TYPE_MAX; i++, req++) {
+		if (i == type) {
+			min_rate = max(new_min_rate, min_rate);
+			max_rate = min(new_max_rate, max_rate);
+		} else {
+			min_rate = max(req->min_rate, min_rate);
+			max_rate = min(req->max_rate, max_rate);
+		}
+	}
+
+	if (min_rate > max_rate) {
+		dev_err_ratelimited(emc->dev, "%s: type %u: out of range: %lu %lu\n",
+				    __func__, type, min_rate, max_rate);
+		return -ERANGE;
+	}
+
+	/*
+	 * EMC rate-changes should go via OPP API because it manages voltage
+	 * changes.
+	 */
+	err = dev_pm_opp_set_rate(emc->dev, min_rate);
+	if (err)
+		return err;
+
+	emc->requested_rate[type].min_rate = new_min_rate;
+	emc->requested_rate[type].max_rate = new_max_rate;
+
+	return 0;
+}
+
+static int emc_set_min_rate(struct tegra_emc *emc, unsigned long rate,
+			    enum emc_rate_request_type type)
+{
+	struct emc_rate_request *req = &emc->requested_rate[type];
+	int ret;
+
+	mutex_lock(&emc->rate_lock);
+	ret = emc_request_rate(emc, rate, req->max_rate, type);
+	mutex_unlock(&emc->rate_lock);
+
+	return ret;
+}
+
+static int emc_set_max_rate(struct tegra_emc *emc, unsigned long rate,
+			    enum emc_rate_request_type type)
+{
+	struct emc_rate_request *req = &emc->requested_rate[type];
+	int ret;
+
+	mutex_lock(&emc->rate_lock);
+	ret = emc_request_rate(emc, req->min_rate, rate, type);
+	mutex_unlock(&emc->rate_lock);
+
+	return ret;
 }
 
 /*
···
 	if (!tegra_emc_validate_rate(emc, rate))
 		return -EINVAL;
 
-	err = clk_set_min_rate(emc->clk, rate);
+	err = emc_set_min_rate(emc, rate, EMC_RATE_DEBUG);
 	if (err < 0)
 		return err;
 
···
 	if (!tegra_emc_validate_rate(emc, rate))
 		return -EINVAL;
 
-	err = clk_set_max_rate(emc->clk, rate);
+	err = emc_set_max_rate(emc, rate, EMC_RATE_DEBUG);
 	if (err < 0)
 		return err;
 
···
 {
 	unsigned int i;
 	int err;
-
-	emc->clk = devm_clk_get(dev, "emc");
-	if (IS_ERR(emc->clk)) {
-		if (PTR_ERR(emc->clk) != -ENODEV) {
-			dev_err(dev, "failed to get EMC clock: %ld\n",
-				PTR_ERR(emc->clk));
-			return;
-		}
-	}
 
 	emc->debugfs.min_rate = ULONG_MAX;
 	emc->debugfs.max_rate = 0;
···
 			    emc, &tegra_emc_debug_max_rate_fops);
 }
 
+static inline struct tegra_emc *
+to_tegra_emc_provider(struct icc_provider *provider)
+{
+	return container_of(provider, struct tegra_emc, provider);
+}
+
+static struct icc_node_data *
+emc_of_icc_xlate_extended(struct of_phandle_args *spec, void *data)
+{
+	struct icc_provider *provider = data;
+	struct icc_node_data *ndata;
+	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;
+
+		ndata = kzalloc(sizeof(*ndata), GFP_KERNEL);
+		if (!ndata)
+			return ERR_PTR(-ENOMEM);
+
+		/*
+		 * SRC and DST nodes should have matching TAG in order to have
+		 * it set by default for a requested path.
+		 */
+		ndata->tag = TEGRA_MC_ICC_TAG_ISO;
+		ndata->node = node;
+
+		return ndata;
+	}
+
+	return ERR_PTR(-EPROBE_DEFER);
+}
+
+static int emc_icc_set(struct icc_node *src, struct icc_node *dst)
+{
+	struct tegra_emc *emc = to_tegra_emc_provider(dst->provider);
+	unsigned long long peak_bw = icc_units_to_bps(dst->peak_bw);
+	unsigned long long avg_bw = icc_units_to_bps(dst->avg_bw);
+	unsigned long long rate = max(avg_bw, peak_bw);
+	unsigned int dram_data_bus_width_bytes;
+	const unsigned int ddr = 2;
+	int err;
+
+	/*
+	 * Tegra124 EMC runs on a clock rate of SDRAM bus. This means that
+	 * EMC clock rate is twice smaller than the peak data rate because
+	 * data is sampled on both EMC clock edges.
+	 */
+	dram_data_bus_width_bytes = emc->dram_bus_width / 8;
+	do_div(rate, ddr * dram_data_bus_width_bytes);
+	rate = min_t(u64, rate, U32_MAX);
+
+	err = emc_set_min_rate(emc, rate, EMC_RATE_ICC);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static int tegra_emc_interconnect_init(struct tegra_emc *emc)
+{
+	const struct tegra_mc_soc *soc = emc->mc->soc;
+	struct icc_node *node;
+	int err;
+
+	emc->provider.dev = emc->dev;
+	emc->provider.set = emc_icc_set;
+	emc->provider.data = &emc->provider;
+	emc->provider.aggregate = soc->icc_ops->aggregate;
+	emc->provider.xlate_extended = emc_of_icc_xlate_extended;
+
+	err = icc_provider_add(&emc->provider);
+	if (err)
+		goto err_msg;
+
+	/* create External Memory Controller node */
+	node = icc_node_create(TEGRA_ICC_EMC);
+	if (IS_ERR(node)) {
+		err = PTR_ERR(node);
+		goto del_provider;
+	}
+
+	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);
+
+	return 0;
+
+remove_nodes:
+	icc_nodes_remove(&emc->provider);
+del_provider:
+	icc_provider_del(&emc->provider);
+err_msg:
+	dev_err(emc->dev, "failed to initialize ICC: %d\n", err);
+
+	return err;
+}
+
+static int tegra_emc_opp_table_init(struct tegra_emc *emc)
+{
+	u32 hw_version = BIT(tegra_sku_info.soc_speedo_id);
+	struct opp_table *hw_opp_table;
+	int err;
+
+	hw_opp_table = dev_pm_opp_set_supported_hw(emc->dev, &hw_version, 1);
+	err = PTR_ERR_OR_ZERO(hw_opp_table);
+	if (err) {
+		dev_err(emc->dev, "failed to set OPP supported HW: %d\n", err);
+		return err;
+	}
+
+	err = dev_pm_opp_of_add_table(emc->dev);
+	if (err) {
+		if (err == -ENODEV)
+			dev_err(emc->dev, "OPP table not found, please update your device tree\n");
+		else
+			dev_err(emc->dev, "failed to add OPP table: %d\n", err);
+
+		goto put_hw_table;
+	}
+
+	dev_info(emc->dev, "OPP HW ver. 0x%x, current clock rate %lu MHz\n",
+		 hw_version, clk_get_rate(emc->clk) / 1000000);
+
+	/* first dummy rate-set initializes voltage state */
+	err = dev_pm_opp_set_rate(emc->dev, clk_get_rate(emc->clk));
+	if (err) {
+		dev_err(emc->dev, "failed to initialize OPP clock: %d\n", err);
+		goto remove_table;
+	}
+
+	return 0;
+
+remove_table:
+	dev_pm_opp_of_remove_table(emc->dev);
+put_hw_table:
+	dev_pm_opp_put_supported_hw(hw_opp_table);
+
+	return err;
+}
+
+static void devm_tegra_emc_unset_callback(void *data)
+{
+	tegra124_clk_set_emc_callbacks(NULL, NULL);
+}
+
 static int tegra_emc_probe(struct platform_device *pdev)
 {
 	struct device_node *np;
···
 	if (!emc)
 		return -ENOMEM;
 
+	mutex_init(&emc->rate_lock);
 	emc->dev = &pdev->dev;
 
 	emc->regs = devm_platform_ioremap_resource(pdev, 0);
···
 	ram_code = tegra_read_ram_code();
 
 	np = tegra_emc_find_node_by_ram_code(pdev->dev.of_node, ram_code);
-	if (!np) {
-		dev_err(&pdev->dev,
-			"no memory timings for RAM code %u found in DT\n",
-			ram_code);
-		return -ENOENT;
-	}
-
-	err = tegra_emc_load_timings_from_dt(emc, np);
-	of_node_put(np);
-	if (err)
-		return err;
-
-	if (emc->num_timings == 0) {
-		dev_err(&pdev->dev,
-			"no memory timings for RAM code %u registered\n",
-			ram_code);
-		return -ENOENT;
+	if (np) {
+		err = tegra_emc_load_timings_from_dt(emc, np);
+		of_node_put(np);
+		if (err)
+			return err;
+	} else {
+		dev_info(&pdev->dev,
+			 "no memory timings for RAM code %u found in DT\n",
+			 ram_code);
 	}
 
 	err = emc_init(emc);
···
 
 	platform_set_drvdata(pdev, emc);
 
+	tegra124_clk_set_emc_callbacks(tegra_emc_prepare_timing_change,
+				       tegra_emc_complete_timing_change);
+
+	err = devm_add_action_or_reset(&pdev->dev, devm_tegra_emc_unset_callback,
+				       NULL);
+	if (err)
+		return err;
+
+	emc->clk = devm_clk_get(&pdev->dev, "emc");
+	if (IS_ERR(emc->clk)) {
+		err = PTR_ERR(emc->clk);
+		dev_err(&pdev->dev, "failed to get EMC clock: %d\n", err);
+		return err;
+	}
+
+	err = tegra_emc_opp_table_init(emc);
+	if (err)
+		return err;
+
+	tegra_emc_rate_requests_init(emc);
+
 	if (IS_ENABLED(CONFIG_DEBUG_FS))
 		emc_debugfs_init(&pdev->dev, emc);
+
+	tegra_emc_interconnect_init(emc);
+
+	/*
+	 * Don't allow the kernel module to be unloaded. Unloading adds some
+	 * extra complexity which doesn't really worth the effort in a case of
+	 * this driver.
+	 */
+	try_module_get(THIS_MODULE);
 
 	return 0;
 };
···
 		.name = "tegra-emc",
 		.of_match_table = tegra_emc_of_match,
 		.suppress_bind_attrs = true,
+		.sync_state = icc_sync_state,
 	},
 };
+module_platform_driver(tegra_emc_driver);
 
-static int tegra_emc_init(void)
-{
-	return platform_driver_register(&tegra_emc_driver);
-}
-subsys_initcall(tegra_emc_init);
+MODULE_AUTHOR("Mikko Perttunen <[e-mail]>");
+MODULE_DESCRIPTION("NVIDIA Tegra124 EMC driver");
+MODULE_LICENSE("GPL v2");

drivers/memory/tegra/tegra124.c

···
  */
 
 #include <linux/of.h>
-#include <linux/mm.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
 
 #include <dt-bindings/memory/tegra124-mc.h>
 
···
 	TEGRA124_MC_RESET(GPU,       0x970, 0x974,  2),
 };
 
+static int tegra124_mc_icc_set(struct icc_node *src, struct icc_node *dst)
+{
+	/* TODO: program PTSA */
+	return 0;
+}
+
+static int tegra124_mc_icc_aggreate(struct icc_node *node, u32 tag, u32 avg_bw,
+				    u32 peak_bw, u32 *agg_avg, u32 *agg_peak)
+{
+	/*
+	 * ISO clients need to reserve extra bandwidth up-front because
+	 * there could be high bandwidth pressure during initial filling
+	 * of the client's FIFO buffers.  Secondly, we need to take into
+	 * account impurities of the memory subsystem.
+	 */
+	if (tag & TEGRA_MC_ICC_TAG_ISO)
+		peak_bw = tegra_mc_scale_percents(peak_bw, 400);
+
+	*agg_avg += avg_bw;
+	*agg_peak = max(*agg_peak, peak_bw);
+
+	return 0;
+}
+
+static struct icc_node_data *
+tegra124_mc_of_icc_xlate_extended(struct of_phandle_args *spec, void *data)
+{
+	struct tegra_mc *mc = icc_provider_to_tegra_mc(data);
+	const struct tegra_mc_client *client;
+	unsigned int i, idx = spec->args[0];
+	struct icc_node_data *ndata;
+	struct icc_node *node;
+
+	list_for_each_entry(node, &mc->provider.nodes, node_list) {
+		if (node->id != idx)
+			continue;
+
+		ndata = kzalloc(sizeof(*ndata), GFP_KERNEL);
+		if (!ndata)
+			return ERR_PTR(-ENOMEM);
+
+		client = &mc->soc->clients[idx];
+		ndata->node = node;
+
+		switch (client->swgroup) {
+		case TEGRA_SWGROUP_DC:
+		case TEGRA_SWGROUP_DCB:
+		case TEGRA_SWGROUP_PTC:
+		case TEGRA_SWGROUP_VI:
+			/* these clients are isochronous by default */
+			ndata->tag = TEGRA_MC_ICC_TAG_ISO;
+			break;
+
+		default:
+			ndata->tag = TEGRA_MC_ICC_TAG_DEFAULT;
+			break;
+		}
+
+		return ndata;
+	}
+
+	for (i = 0; i < mc->soc->num_clients; i++) {
+		if (mc->soc->clients[i].id == idx)
+			return ERR_PTR(-EPROBE_DEFER);
+	}
+
+	dev_err(mc->dev, "invalid ICC client ID %u\n", idx);
+
+	return ERR_PTR(-EINVAL);
+}
+
+static const struct tegra_mc_icc_ops tegra124_mc_icc_ops = {
+	.xlate_extended = tegra124_mc_of_icc_xlate_extended,
+	.aggregate = tegra124_mc_icc_aggreate,
+	.set = tegra124_mc_icc_set,
+};
+
 #ifdef CONFIG_ARCH_TEGRA_124_SOC
 static const unsigned long tegra124_mc_emem_regs[] = {
 	MC_EMEM_ARB_CFG,
···
 	.reset_ops = &tegra_mc_reset_ops_common,
 	.resets = tegra124_mc_resets,
 	.num_resets = ARRAY_SIZE(tegra124_mc_resets),
+	.icc_ops = &tegra124_mc_icc_ops,
 };
 #endif /* CONFIG_ARCH_TEGRA_124_SOC */
 
···
 	.reset_ops = &tegra_mc_reset_ops_common,
 	.resets = tegra124_mc_resets,
 	.num_resets = ARRAY_SIZE(tegra124_mc_resets),
+	.icc_ops = &tegra124_mc_icc_ops,
 };
 #endif /* CONFIG_ARCH_TEGRA_132_SOC */

drivers/memory/tegra/tegra186-emc.c

···
 	return 0;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(tegra186_emc_debug_min_rate_fops,
-			tegra186_emc_debug_min_rate_get,
-			tegra186_emc_debug_min_rate_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(tegra186_emc_debug_min_rate_fops,
+			  tegra186_emc_debug_min_rate_get,
+			  tegra186_emc_debug_min_rate_set, "%llu\n");
 
 static int tegra186_emc_debug_max_rate_get(void *data, u64 *rate)
 {
···
 	return 0;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(tegra186_emc_debug_max_rate_fops,
-			tegra186_emc_debug_max_rate_get,
-			tegra186_emc_debug_max_rate_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(tegra186_emc_debug_max_rate_fops,
+			  tegra186_emc_debug_max_rate_get,
+			  tegra186_emc_debug_max_rate_set, "%llu\n");
 
 static int tegra186_emc_probe(struct platform_device *pdev)
 {

drivers/memory/tegra/tegra20-emc.c

···
 static int tegra_emc_opp_table_init(struct tegra_emc *emc)
 {
 	u32 hw_version = BIT(tegra_sku_info.soc_process_id);
-	struct opp_table *clk_opp_table, *hw_opp_table;
+	struct opp_table *hw_opp_table;
 	int err;
-
-	clk_opp_table = dev_pm_opp_set_clkname(emc->dev, NULL);
-	err = PTR_ERR_OR_ZERO(clk_opp_table);
-	if (err) {
-		dev_err(emc->dev, "failed to set OPP clk: %d\n", err);
-		return err;
-	}
 
 	hw_opp_table = dev_pm_opp_set_supported_hw(emc->dev, &hw_version, 1);
 	err = PTR_ERR_OR_ZERO(hw_opp_table);
 	if (err) {
 		dev_err(emc->dev, "failed to set OPP supported HW: %d\n", err);
-		goto put_clk_table;
+		return err;
 	}
 
 	err = dev_pm_opp_of_add_table(emc->dev);
···
 	dev_pm_opp_of_remove_table(emc->dev);
 put_hw_table:
 	dev_pm_opp_put_supported_hw(hw_opp_table);
-put_clk_table:
-	dev_pm_opp_put_clkname(clk_opp_table);
 
 	return err;
 }

drivers/memory/tegra/tegra30-emc.c

···
 static int tegra_emc_opp_table_init(struct tegra_emc *emc)
 {
 	u32 hw_version = BIT(tegra_sku_info.soc_speedo_id);
-	struct opp_table *clk_opp_table, *hw_opp_table;
+	struct opp_table *hw_opp_table;
 	int err;
-
-	clk_opp_table = dev_pm_opp_set_clkname(emc->dev, NULL);
-	err = PTR_ERR_OR_ZERO(clk_opp_table);
-	if (err) {
-		dev_err(emc->dev, "failed to set OPP clk: %d\n", err);
-		return err;
-	}
 
 	hw_opp_table = dev_pm_opp_set_supported_hw(emc->dev, &hw_version, 1);
 	err = PTR_ERR_OR_ZERO(hw_opp_table);
 	if (err) {
 		dev_err(emc->dev, "failed to set OPP supported HW: %d\n", err);
-		goto put_clk_table;
+		return err;
 	}
 
 	err = dev_pm_opp_of_add_table(emc->dev);
···
 	dev_pm_opp_of_remove_table(emc->dev);
 put_hw_table:
 	dev_pm_opp_put_supported_hw(hw_opp_table);
-put_clk_table:
-	dev_pm_opp_put_clkname(clk_opp_table);
 
 	return err;
 }

drivers/memory/ti-aemif.c

···
 		 */
 		for_each_available_child_of_node(np, child_np) {
 			ret = of_aemif_parse_abus_config(pdev, child_np);
-			if (ret < 0)
+			if (ret < 0) {
+				of_node_put(child_np);
 				goto error;
+			}
 		}
 	} else if (pdata && pdata->num_abus_data > 0) {
 		for (i = 0; i < pdata->num_abus_data; i++, aemif->num_cs++) {
···
 		for_each_available_child_of_node(np, child_np) {
 			ret = of_platform_populate(child_np, NULL,
 						   dev_lookup, dev);
-			if (ret < 0)
+			if (ret < 0) {
+				of_node_put(child_np);
 				goto error;
+			}
 		}
 	} else if (pdata) {
 		for (i = 0; i < pdata->num_sub_devices; i++) {

drivers/memory/ti-emif-pm.c

···
 	.remove = ti_emif_remove,
 	.driver = {
 		.name = KBUILD_MODNAME,
-		.of_match_table = of_match_ptr(ti_emif_of_match),
+		.of_match_table = ti_emif_of_match,
 		.pm = &ti_emif_pm_ops,
 	},
 };

drivers/mfd/axp20x-i2c.c

···
 {
 	struct axp20x_dev *axp20x = i2c_get_clientdata(i2c);
 
-	return axp20x_device_remove(axp20x);
+	axp20x_device_remove(axp20x);
+
+	return 0;
 }
 
 #ifdef CONFIG_OF

drivers/mfd/axp20x-rsb.c

···
 	return axp20x_device_probe(axp20x);
 }
 
-static int axp20x_rsb_remove(struct sunxi_rsb_device *rdev)
+static void axp20x_rsb_remove(struct sunxi_rsb_device *rdev)
 {
 	struct axp20x_dev *axp20x = sunxi_rsb_device_get_drvdata(rdev);
 
-	return axp20x_device_remove(axp20x);
+	axp20x_device_remove(axp20x);
 }
 
 static const struct of_device_id axp20x_rsb_of_match[] = {

drivers/mfd/axp20x.c

···
 }
 EXPORT_SYMBOL(axp20x_device_probe);
 
-int axp20x_device_remove(struct axp20x_dev *axp20x)
+void axp20x_device_remove(struct axp20x_dev *axp20x)
 {
 	if (axp20x == axp20x_pm_power_off) {
 		axp20x_pm_power_off = NULL;
···
 
 	mfd_remove_devices(axp20x->dev);
 	regmap_del_irq_chip(axp20x->irq, axp20x->regmap_irqc);
-
-	return 0;
 }
 EXPORT_SYMBOL(axp20x_device_remove);
 

drivers/reset/Kconfig

···
 
 config RESET_SIMPLE
 	bool "Simple Reset Controller Driver" if COMPILE_TEST
-	default ARCH_AGILEX || ARCH_ASPEED || ARCH_BITMAIN || ARCH_REALTEK || ARCH_STM32 || ARCH_STRATIX10 || ARCH_SUNXI || ARC
+	default ARCH_AGILEX || ARCH_ASPEED || ARCH_BCM4908 || ARCH_BITMAIN || ARCH_REALTEK || ARCH_STM32 || ARCH_STRATIX10 || ARCH_SUNXI || ARC
 	help
 	  This enables a simple reset controller driver for reset lines that
 	  that can be asserted and deasserted by toggling bits in a contiguous,

drivers/reset/core.c

···
 EXPORT_SYMBOL_GPL(__devm_reset_control_get);
 
 /**
- * device_reset - find reset controller associated with the device
- *                and perform reset
+ * __device_reset - find reset controller associated with the device
+ *                  and perform reset
  * @dev: device to be reset by the controller
  * @optional: whether it is optional to reset the device
  *

drivers/reset/hisilicon/reset-hi3660.c

···
 	if (!rc)
 		return -ENOMEM;
 
-	rc->map = syscon_regmap_lookup_by_phandle(np, "hisi,rst-syscon");
+	rc->map = syscon_regmap_lookup_by_phandle(np, "hisilicon,rst-syscon");
+	if (rc->map == ERR_PTR(-ENODEV)) {
+		/* fall back to the deprecated compatible */
+		rc->map = syscon_regmap_lookup_by_phandle(np,
+							  "hisi,rst-syscon");
+	}
 	if (IS_ERR(rc->map)) {
-		dev_err(dev, "failed to get hi3660,rst-syscon\n");
+		dev_err(dev, "failed to get hisilicon,rst-syscon\n");
 		return PTR_ERR(rc->map);
 	}
 

drivers/reset/reset-simple.c

···
 	{ .compatible = "aspeed,ast2500-lpc-reset" },
 	{ .compatible = "bitmain,bm1880-reset",
 		.data = &reset_simple_active_low },
+	{ .compatible = "brcm,bcm4908-misc-pcie-reset",
+		.data = &reset_simple_active_low },
 	{ .compatible = "snps,dw-high-reset" },
 	{ .compatible = "snps,dw-low-reset",
 		.data = &reset_simple_active_low },

drivers/soc/aspeed/aspeed-lpc-snoop.c

···
  */
 
 #include <linux/bitops.h>
+#include <linux/clk.h>
 #include <linux/interrupt.h>
 #include <linux/fs.h>
 #include <linux/kfifo.h>
···
 struct aspeed_lpc_snoop {
 	struct regmap		*regmap;
 	int			irq;
+	struct clk		*clk;
 	struct aspeed_lpc_snoop_channel chan[NUM_SNOOP_CHANNELS];
 };
 
···
 		return -ENODEV;
 	}
 
+	lpc_snoop->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(lpc_snoop->clk)) {
+		rc = PTR_ERR(lpc_snoop->clk);
+		if (rc != -EPROBE_DEFER)
+			dev_err(dev, "couldn't get clock\n");
+		return rc;
+	}
+	rc = clk_prepare_enable(lpc_snoop->clk);
+	if (rc) {
+		dev_err(dev, "couldn't enable clock\n");
+		return rc;
+	}
+
 	rc = aspeed_lpc_snoop_config_irq(lpc_snoop, pdev);
 	if (rc)
-		return rc;
+		goto err;
 
 	rc = aspeed_lpc_enable_snoop(lpc_snoop, dev, 0, port);
 	if (rc)
-		return rc;
+		goto err;
 
 	/* Configuration of 2nd snoop channel port is optional */
 	if (of_property_read_u32_index(dev->of_node, "snoop-ports",
 				       1, &port) == 0) {
 		rc = aspeed_lpc_enable_snoop(lpc_snoop, dev, 1, port);
-		if (rc)
+		if (rc) {
 			aspeed_lpc_disable_snoop(lpc_snoop, 0);
+			goto err;
+		}
 	}
+
+	return 0;
+
+err:
+	clk_disable_unprepare(lpc_snoop->clk);
 
 	return rc;
 }
···
 	/* Disable both snoop channels */
 	aspeed_lpc_disable_snoop(lpc_snoop, 0);
 	aspeed_lpc_disable_snoop(lpc_snoop, 1);
+
+	clk_disable_unprepare(lpc_snoop->clk);
 
 	return 0;
 }

drivers/soc/aspeed/aspeed-socinfo.c

···
 	/* AST2600 */
 	{ "AST2600", 0x05000303 },
 	{ "AST2620", 0x05010203 },
+	{ "AST2605", 0x05030103 },
 };
 
 static const char *siliconid_to_name(u32 siliconid)
···
 static const char *siliconid_to_rev(u32 siliconid)
 {
 	unsigned int rev = (siliconid >> 16) & 0xff;
+	unsigned int gen = (siliconid >> 24) & 0xff;
 
-	switch (rev) {
-	case 0:
-		return "A0";
-	case 1:
-		return "A1";
-	case 3:
-		return "A2";
+	if (gen < 0x5) {
+		/* AST2500 and below */
+		switch (rev) {
+		case 0:
+			return "A0";
+		case 1:
+			return "A1";
+		case 3:
+			return "A2";
+		}
+	} else {
+		/* AST2600 */
+		switch (rev) {
+		case 0:
+			return "A0";
+		case 1:
+			return "A1";
+		case 2:
+			return "A2";
+		case 3:
+			return "A3";
+		}
 	}
 
 	return "??";

drivers/soc/atmel/soc.c

···
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2015 Atmel
  *
  * Alexandre Belloni <[e-mail]
  * Boris Brezillon <[e-mail]
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2.  This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- *
  */
 
 #define pr_fmt(fmt)	"AT91: " fmt
···
 #define AT91_DBGU_EXID			0x44
 #define AT91_CHIPID_CIDR		0x00
 #define AT91_CHIPID_EXID		0x04
-#define AT91_CIDR_VERSION(x)		((x) & 0x1f)
+#define AT91_CIDR_VERSION(x, m)		((x) & (m))
+#define AT91_CIDR_VERSION_MASK		GENMASK(4, 0)
+#define AT91_CIDR_VERSION_MASK_SAMA7G5	GENMASK(3, 0)
 #define AT91_CIDR_EXT			BIT(31)
-#define AT91_CIDR_MATCH_MASK		0x7fffffe0
+#define AT91_CIDR_MATCH_MASK		GENMASK(30, 5)
+#define AT91_CIDR_MASK_SAMA7G5		GENMASK(27, 5)
 
-static const struct at91_soc __initconst socs[] = {
+static const struct at91_soc socs[] __initconst = {
 #ifdef CONFIG_SOC_AT91RM9200
-	AT91_SOC(AT91RM9200_CIDR_MATCH, 0, "at91rm9200 BGA", "at91rm9200"),
+	AT91_SOC(AT91RM9200_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, 0, "at91rm9200 BGA", "at91rm9200"),
 #endif
 #ifdef CONFIG_SOC_AT91SAM9
-	AT91_SOC(AT91SAM9260_CIDR_MATCH, 0, "at91sam9260", NULL),
-	AT91_SOC(AT91SAM9261_CIDR_MATCH, 0, "at91sam9261", NULL),
-	AT91_SOC(AT91SAM9263_CIDR_MATCH, 0, "at91sam9263", NULL),
-	AT91_SOC(AT91SAM9G20_CIDR_MATCH, 0, "at91sam9g20", NULL),
-	AT91_SOC(AT91SAM9RL64_CIDR_MATCH, 0, "at91sam9rl64", NULL),
-	AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91SAM9M11_EXID_MATCH,
+	AT91_SOC(AT91SAM9260_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, 0, "at91sam9260", NULL),
+	AT91_SOC(AT91SAM9261_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, 0, "at91sam9261", NULL),
+	AT91_SOC(AT91SAM9263_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, 0, "at91sam9263", NULL),
+	AT91_SOC(AT91SAM9G20_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, 0, "at91sam9g20", NULL),
+	AT91_SOC(AT91SAM9RL64_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, 0, "at91sam9rl64", NULL),
+	AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, AT91SAM9M11_EXID_MATCH,
 		 "at91sam9m11", "at91sam9g45"),
-	AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91SAM9M10_EXID_MATCH,
+	AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, AT91SAM9M10_EXID_MATCH,
 		 "at91sam9m10", "at91sam9g45"),
-	AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91SAM9G46_EXID_MATCH,
+	AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, AT91SAM9G46_EXID_MATCH,
 		 "at91sam9g46", "at91sam9g45"),
-	AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91SAM9G45_EXID_MATCH,
+	AT91_SOC(AT91SAM9G45_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, AT91SAM9G45_EXID_MATCH,
 		 "at91sam9g45", "at91sam9g45"),
-	AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9G15_EXID_MATCH,
+	AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, AT91SAM9G15_EXID_MATCH,
 		 "at91sam9g15", "at91sam9x5"),
-	AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9G35_EXID_MATCH,
+	AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, AT91SAM9G35_EXID_MATCH,
 		 "at91sam9g35", "at91sam9x5"),
-	AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9X35_EXID_MATCH,
+	AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, AT91SAM9X35_EXID_MATCH,
 		 "at91sam9x35", "at91sam9x5"),
-	AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9G25_EXID_MATCH,
+	AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, AT91SAM9G25_EXID_MATCH,
 		 "at91sam9g25", "at91sam9x5"),
-	AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91SAM9X25_EXID_MATCH,
+	AT91_SOC(AT91SAM9X5_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, AT91SAM9X25_EXID_MATCH,
 		 "at91sam9x25", "at91sam9x5"),
-	AT91_SOC(AT91SAM9N12_CIDR_MATCH, AT91SAM9CN12_EXID_MATCH,
+	AT91_SOC(AT91SAM9N12_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, AT91SAM9CN12_EXID_MATCH,
 		 "at91sam9cn12", "at91sam9n12"),
-	AT91_SOC(AT91SAM9N12_CIDR_MATCH, AT91SAM9N12_EXID_MATCH,
+	AT91_SOC(AT91SAM9N12_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, AT91SAM9N12_EXID_MATCH,
 		 "at91sam9n12", "at91sam9n12"),
-	AT91_SOC(AT91SAM9N12_CIDR_MATCH, AT91SAM9CN11_EXID_MATCH,
+	AT91_SOC(AT91SAM9N12_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, AT91SAM9CN11_EXID_MATCH,
 		 "at91sam9cn11", "at91sam9n12"),
-	AT91_SOC(AT91SAM9XE128_CIDR_MATCH, 0, "at91sam9xe128", "at91sam9xe128"),
-	AT91_SOC(AT91SAM9XE256_CIDR_MATCH, 0, "at91sam9xe256", "at91sam9xe256"),
-	AT91_SOC(AT91SAM9XE512_CIDR_MATCH, 0, "at91sam9xe512", "at91sam9xe512"),
+	AT91_SOC(AT91SAM9XE128_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, 0, "at91sam9xe128", "at91sam9xe128"),
+	AT91_SOC(AT91SAM9XE256_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, 0, "at91sam9xe256", "at91sam9xe256"),
+	AT91_SOC(AT91SAM9XE512_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, 0, "at91sam9xe512", "at91sam9xe512"),
 #endif
 #ifdef CONFIG_SOC_SAM9X60
-	AT91_SOC(SAM9X60_CIDR_MATCH, SAM9X60_EXID_MATCH, "sam9x60", "sam9x60"),
+	AT91_SOC(SAM9X60_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAM9X60_EXID_MATCH,
+		 "sam9x60", "sam9x60"),
 	AT91_SOC(SAM9X60_CIDR_MATCH, SAM9X60_D5M_EXID_MATCH,
+		 AT91_CIDR_VERSION_MASK, SAM9X60_EXID_MATCH,
 		 "sam9x60 64MiB DDR2 SiP", "sam9x60"),
 	AT91_SOC(SAM9X60_CIDR_MATCH, SAM9X60_D1G_EXID_MATCH,
+		 AT91_CIDR_VERSION_MASK, SAM9X60_EXID_MATCH,
 		 "sam9x60 128MiB DDR2 SiP", "sam9x60"),
 	AT91_SOC(SAM9X60_CIDR_MATCH, SAM9X60_D6K_EXID_MATCH,
+		 AT91_CIDR_VERSION_MASK, SAM9X60_EXID_MATCH,
 		 "sam9x60 8MiB SDRAM SiP", "sam9x60"),
 #endif
 #ifdef CONFIG_SOC_SAMA5
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D21CU_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D21CU_EXID_MATCH,
 		 "sama5d21", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D22CU_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D22CU_EXID_MATCH,
 		 "sama5d22", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D225C_D1M_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D225C_D1M_EXID_MATCH,
 		 "sama5d225c 16MiB SiP", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D23CU_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D23CU_EXID_MATCH,
 		 "sama5d23", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D24CX_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D24CX_EXID_MATCH,
 		 "sama5d24", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D24CU_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D24CU_EXID_MATCH,
 		 "sama5d24", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D26CU_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D26CU_EXID_MATCH,
 		 "sama5d26", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27CU_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D27CU_EXID_MATCH,
 		 "sama5d27", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27CN_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D27CN_EXID_MATCH,
 		 "sama5d27", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27C_D1G_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D27C_D1G_EXID_MATCH,
 		 "sama5d27c 128MiB SiP", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27C_D5M_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D27C_D5M_EXID_MATCH,
 		 "sama5d27c 64MiB SiP", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27C_LD1G_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D27C_LD1G_EXID_MATCH,
 		 "sama5d27c 128MiB LPDDR2 SiP", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27C_LD2G_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D27C_LD2G_EXID_MATCH,
 		 "sama5d27c 256MiB LPDDR2 SiP", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28CU_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D28CU_EXID_MATCH,
 		 "sama5d28", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28CN_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D28CN_EXID_MATCH,
 		 "sama5d28", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28C_D1G_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D28C_D1G_EXID_MATCH,
 		 "sama5d28c 128MiB SiP", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28C_LD1G_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D28C_LD1G_EXID_MATCH,
 		 "sama5d28c 128MiB LPDDR2 SiP", "sama5d2"),
-	AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D28C_LD2G_EXID_MATCH,
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D28C_LD2G_EXID_MATCH,
 		 "sama5d28c 256MiB LPDDR2 SiP", "sama5d2"),
-	AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D31_EXID_MATCH,
+	AT91_SOC(SAMA5D3_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D31_EXID_MATCH,
 		 "sama5d31", "sama5d3"),
-	AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D33_EXID_MATCH,
+	AT91_SOC(SAMA5D3_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D33_EXID_MATCH,
 		 "sama5d33", "sama5d3"),
-	AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D34_EXID_MATCH,
+	AT91_SOC(SAMA5D3_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D34_EXID_MATCH,
 		 "sama5d34", "sama5d3"),
-	AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D35_EXID_MATCH,
+	AT91_SOC(SAMA5D3_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D35_EXID_MATCH,
 		 "sama5d35", "sama5d3"),
-	AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D36_EXID_MATCH,
+	AT91_SOC(SAMA5D3_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D36_EXID_MATCH,
 		 "sama5d36", "sama5d3"),
-	AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D41_EXID_MATCH,
+	AT91_SOC(SAMA5D4_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D41_EXID_MATCH,
 		 "sama5d41", "sama5d4"),
-	AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D42_EXID_MATCH,
+	AT91_SOC(SAMA5D4_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D42_EXID_MATCH,
 		 "sama5d42", "sama5d4"),
-	AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D43_EXID_MATCH,
+	AT91_SOC(SAMA5D4_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D43_EXID_MATCH,
 		 "sama5d43", "sama5d4"),
-	AT91_SOC(SAMA5D4_CIDR_MATCH, SAMA5D44_EXID_MATCH,
+	AT91_SOC(SAMA5D4_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D44_EXID_MATCH,
 		 "sama5d44", "sama5d4"),
 #endif
 #ifdef CONFIG_SOC_SAMV7
-	AT91_SOC(SAME70Q21_CIDR_MATCH, SAME70Q21_EXID_MATCH,
+	AT91_SOC(SAME70Q21_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAME70Q21_EXID_MATCH,
 		 "same70q21", "same7"),
-	AT91_SOC(SAME70Q20_CIDR_MATCH, SAME70Q20_EXID_MATCH,
+	AT91_SOC(SAME70Q20_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAME70Q20_EXID_MATCH,
 		 "same70q20", "same7"),
-	AT91_SOC(SAME70Q19_CIDR_MATCH, SAME70Q19_EXID_MATCH,
+	AT91_SOC(SAME70Q19_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAME70Q19_EXID_MATCH,
 		 "same70q19", "same7"),
-	AT91_SOC(SAMS70Q21_CIDR_MATCH, SAMS70Q21_EXID_MATCH,
+	AT91_SOC(SAMS70Q21_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMS70Q21_EXID_MATCH,
 		 "sams70q21", "sams7"),
-	AT91_SOC(SAMS70Q20_CIDR_MATCH, SAMS70Q20_EXID_MATCH,
+	AT91_SOC(SAMS70Q20_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMS70Q20_EXID_MATCH,
 		 "sams70q20", "sams7"),
-	AT91_SOC(SAMS70Q19_CIDR_MATCH, SAMS70Q19_EXID_MATCH,
+	AT91_SOC(SAMS70Q19_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMS70Q19_EXID_MATCH,
 		 "sams70q19", "sams7"),
-	AT91_SOC(SAMV71Q21_CIDR_MATCH, SAMV71Q21_EXID_MATCH,
+	AT91_SOC(SAMV71Q21_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMV71Q21_EXID_MATCH,
 		 "samv71q21", "samv7"),
-	AT91_SOC(SAMV71Q20_CIDR_MATCH, SAMV71Q20_EXID_MATCH,
+	AT91_SOC(SAMV71Q20_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMV71Q20_EXID_MATCH,
 		 "samv71q20", "samv7"),
-	AT91_SOC(SAMV71Q19_CIDR_MATCH, SAMV71Q19_EXID_MATCH,
+	AT91_SOC(SAMV71Q19_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMV71Q19_EXID_MATCH,
 		 "samv71q19", "samv7"),
-	AT91_SOC(SAMV70Q20_CIDR_MATCH, SAMV70Q20_EXID_MATCH,
+	AT91_SOC(SAMV70Q20_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMV70Q20_EXID_MATCH,
 		 "samv70q20", "samv7"),
-	AT91_SOC(SAMV70Q19_CIDR_MATCH, SAMV70Q19_EXID_MATCH,
+	AT91_SOC(SAMV70Q19_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMV70Q19_EXID_MATCH,
 		 "samv70q19", "samv7"),
+#endif
+#ifdef CONFIG_SOC_SAMA7
+	AT91_SOC(SAMA7G5_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK_SAMA7G5, SAMA7G51_EXID_MATCH,
+		 "sama7g51", "sama7g5"),
+	AT91_SOC(SAMA7G5_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK_SAMA7G5, SAMA7G52_EXID_MATCH,
+		 "sama7g52", "sama7g5"),
+	AT91_SOC(SAMA7G5_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK_SAMA7G5, SAMA7G53_EXID_MATCH,
+		 "sama7g53", "sama7g5"),
+	AT91_SOC(SAMA7G5_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK_SAMA7G5, SAMA7G54_EXID_MATCH,
+		 "sama7g54", "sama7g5"),
 #endif
 	{ /* sentinel */ },
 };
···
 {
 	struct device_node *np;
 	void __iomem *regs;
+	static const struct of_device_id chipids[] = {
+		{ .compatible = "atmel,sama5d2-chipid" },
+		{ .compatible = "microchip,sama7g5-chipid" },
+		{ },
+	};
 
-	np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-chipid");
+	np = of_find_matching_node(NULL, chipids);
 	if (!np)
 		return -ENODEV;
 
···
 	}
 
 	for (soc = socs; soc->name; soc++) {
-		if (soc->cidr_match != (cidr & AT91_CIDR_MATCH_MASK))
+		if (soc->cidr_match != (cidr & soc->cidr_mask))
 			continue;
 
 		if (!(cidr & AT91_CIDR_EXT) || soc->exid_match == exid)
···
 	soc_dev_attr->family = soc->family;
 	soc_dev_attr->soc_id = soc->name;
 	soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%X",
-					   AT91_CIDR_VERSION(cidr));
+					   AT91_CIDR_VERSION(cidr, soc->version_mask));
 	soc_dev = soc_device_register(soc_dev_attr);
 	if (IS_ERR(soc_dev)) {
 		kfree(soc_dev_attr->revision);
···
 	if (soc->family)
 		pr_info("Detected SoC family: %s\n", soc->family);
 	pr_info("Detected SoC: %s, revision %X\n", soc->name,
-		AT91_CIDR_VERSION(cidr));
+		AT91_CIDR_VERSION(cidr, soc->version_mask));
 
 	return soc_dev;
 }
···
 	{ .compatible = "atmel,at91sam9", },
 	{ .compatible = "atmel,sama5", },
 	{ .compatible = "atmel,samv7", },
+	{ .compatible = "microchip,sama7g5", },
 	{ }
 };
 

drivers/soc/atmel/soc.h

···
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2015 Atmel
  *
  * Boris Brezillon <[e-mail]
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2.  This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- *
  */
 
 #ifndef __AT91_SOC_H
···
 
 struct at91_soc {
 	u32 cidr_match;
+	u32 cidr_mask;
+	u32 version_mask;
 	u32 exid_match;
 	const char *name;
 	const char *family;
 };
 
-#define AT91_SOC(__cidr, __exid, __name, __family)		\
+#define AT91_SOC(__cidr, __cidr_mask, __version_mask, __exid,	\
+		 __name, __family)				\
 	{							\
 		.cidr_match = (__cidr),				\
+		.cidr_mask = (__cidr_mask),			\
+		.version_mask = (__version_mask),		\
 		.exid_match = (__exid),				\
 		.name = (__name),				\
 		.family = (__family),				\
···
 #define AT91SAM9X5_CIDR_MATCH		0x019a05a0
 #define AT91SAM9N12_CIDR_MATCH		0x019a07a0
 #define SAM9X60_CIDR_MATCH		0x019b35a0
+#define SAMA7G5_CIDR_MATCH		0x00162100
 
 #define AT91SAM9M11_EXID_MATCH		0x00000001
 #define AT91SAM9M10_EXID_MATCH		0x00000002
···
 #define SAM9X60_D5M_EXID_MATCH		0x00000001
 #define SAM9X60_D1G_EXID_MATCH		0x00000010
 #define SAM9X60_D6K_EXID_MATCH		0x00000011
+
+#define SAMA7G51_EXID_MATCH		0x3
+#define SAMA7G52_EXID_MATCH		0x2
+#define SAMA7G53_EXID_MATCH		0x1
+#define SAMA7G54_EXID_MATCH		0x0
 
 #define AT91SAM9XE128_CIDR_MATCH	0x329973a0
 #define AT91SAM9XE256_CIDR_MATCH	0x329a93a0

drivers/soc/bcm/Makefile

···
 # SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_BCM2835_POWER)	+= bcm2835-power.o
 obj-$(CONFIG_RASPBERRYPI_POWER)	+= raspberrypi-power.o
-obj-$(CONFIG_SOC_BCM63XX)	+= bcm63xx/
+obj-y				+= bcm63xx/
 obj-$(CONFIG_SOC_BRCMSTB)	+= brcmstb/

drivers/soc/bcm/bcm63xx/Kconfig

···
 	  BCM6318, BCM6328, BCM6362 and BCM63268 SoCs.
 
 endif # SOC_BCM63XX
+
+config BCM_PMB
+	bool "Broadcom PMB (Power Management Bus) driver"
+	depends on ARCH_BCM4908 || (COMPILE_TEST && OF)
+	default ARCH_BCM4908
+	select PM_GENERIC_DOMAINS if PM
+	help
+	  This enables support for the Broadcom's PMB (Power Management Bus) that
+	  is used for disabling and enabling SoC devices.

drivers/soc/bcm/bcm63xx/Makefile

···
 # SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_BCM63XX_POWER) += bcm63xx-power.o
+obj-$(CONFIG_BCM_PMB)		+= bcm-pmb.o

drivers/soc/bcm/bcm63xx/bcm-pmb.c

···
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2013 Broadcom
+ * Copyright (C) 2020 Rafał Miłecki <[e-mail]>
+ */
+
+#include <dt-bindings/soc/bcm-pmb.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/reset/bcm63xx_pmb.h>
+
+#define BPCM_ID_REG					0x00
+#define BPCM_CAPABILITIES				0x04
+#define  BPCM_CAP_NUM_ZONES				0x000000ff
+#define  BPCM_CAP_SR_REG_BITS				0x0000ff00
+#define  BPCM_CAP_PLLTYPE				0x00030000
+#define  BPCM_CAP_UBUS					0x00080000
+#define BPCM_CONTROL					0x08
+#define BPCM_STATUS					0x0c
+#define BPCM_ROSC_CONTROL				0x10
+#define BPCM_ROSC_THRESH_H				0x14
+#define BPCM_ROSC_THRESHOLD_BCM6838			0x14
+#define BPCM_ROSC_THRESH_S				0x18
+#define BPCM_ROSC_COUNT_BCM6838				0x18
+#define BPCM_ROSC_COUNT					0x1c
+#define BPCM_PWD_CONTROL_BCM6838			0x1c
+#define BPCM_PWD_CONTROL				0x20
+#define BPCM_SR_CONTROL_BCM6838				0x20
+#define BPCM_PWD_ACCUM_CONTROL				0x24
+#define BPCM_SR_CONTROL					0x28
+#define BPCM_GLOBAL_CONTROL				0x2c
+#define BPCM_MISC_CONTROL				0x30
+#define BPCM_MISC_CONTROL2				0x34
+#define BPCM_SGPHY_CNTL					0x38
+#define BPCM_SGPHY_STATUS				0x3c
+#define BPCM_ZONE0					0x40
+#define  BPCM_ZONE_CONTROL				0x00
+#define   BPCM_ZONE_CONTROL_MANUAL_CLK_EN		0x00000001
+#define   BPCM_ZONE_CONTROL_MANUAL_RESET_CTL		0x00000002
+#define   BPCM_ZONE_CONTROL_FREQ_SCALE_USED		0x00000004	/* R/O */
+#define   BPCM_ZONE_CONTROL_DPG_CAPABLE			0x00000008	/* R/O */
+#define   BPCM_ZONE_CONTROL_MANUAL_MEM_PWR		0x00000030
+#define   BPCM_ZONE_CONTROL_MANUAL_ISO_CTL		0x00000040
+#define   BPCM_ZONE_CONTROL_MANUAL_CTL			0x00000080
+#define   BPCM_ZONE_CONTROL_DPG_CTL_EN			0x00000100
+#define   BPCM_ZONE_CONTROL_PWR_DN_REQ			0x00000200
+#define   BPCM_ZONE_CONTROL_PWR_UP_REQ			0x00000400
+#define   BPCM_ZONE_CONTROL_MEM_PWR_CTL_EN		0x00000800
+#define   BPCM_ZONE_CONTROL_BLK_RESET_ASSERT		0x00001000
+#define   BPCM_ZONE_CONTROL_MEM_STBY			0x00002000
+#define   BPCM_ZONE_CONTROL_RESERVED			0x0007c000
+#define   BPCM_ZONE_CONTROL_PWR_CNTL_STATE		0x00f80000
+#define   BPCM_ZONE_CONTROL_FREQ_SCALAR_DYN_SEL		0x01000000	/* R/O */
+#define   BPCM_ZONE_CONTROL_PWR_OFF_STATE		0x02000000	/* R/O */
+#define   BPCM_ZONE_CONTROL_PWR_ON_STATE		0x04000000	/* R/O */
+#define   BPCM_ZONE_CONTROL_PWR_GOOD			0x08000000	/* R/O */
+#define   BPCM_ZONE_CONTROL_DPG_PWR_STATE		0x10000000	/* R/O */
+#define   BPCM_ZONE_CONTROL_MEM_PWR_STATE		0x20000000	/* R/O */
+#define   BPCM_ZONE_CONTROL_ISO_STATE			0x40000000	/* R/O */
+#define   BPCM_ZONE_CONTROL_RESET_STATE			0x80000000	/* R/O */
+#define  BPCM_ZONE_CONFIG1				0x04
+#define  BPCM_ZONE_CONFIG2				0x08
+#define  BPCM_ZONE_FREQ_SCALAR_CONTROL			0x0c
+#define  BPCM_ZONE_SIZE					0x10
+
+struct bcm_pmb {
+	struct device *dev;
+	void __iomem *base;
+	spinlock_t lock;
+	bool little_endian;
+	struct genpd_onecell_data genpd_onecell_data;
+};
+
+struct bcm_pmb_pd_data {
+	const char * const name;
+	int id;
+	u8 bus;
+	u8 device;
+};
+
+struct bcm_pmb_pm_domain {
+	struct bcm_pmb *pmb;
+	const struct bcm_pmb_pd_data *data;
+	struct generic_pm_domain genpd;
+};
+
+static int bcm_pmb_bpcm_read(struct bcm_pmb *pmb, int bus, u8 device,
+			     int offset, u32 *val)
+{
+	void __iomem *base = pmb->base + bus * 0x20;
+	unsigned long flags;
+	int err;
+
+	spin_lock_irqsave(&pmb->lock, flags);
+	err = bpcm_rd(base, device, offset, val);
+	spin_unlock_irqrestore(&pmb->lock, flags);
+
+	if (!err)
+		*val = pmb->little_endian ? le32_to_cpu(*val) : be32_to_cpu(*val);
+
+	return err;
+}
+
+static int bcm_pmb_bpcm_write(struct bcm_pmb *pmb, int bus, u8 device,
+			      int offset, u32 val)
+{
+	void __iomem *base = pmb->base + bus * 0x20;
+	unsigned long flags;
+	int err;
+
+	val = pmb->little_endian ? cpu_to_le32(val) : cpu_to_be32(val);
+
+	spin_lock_irqsave(&pmb->lock, flags);
+	err = bpcm_wr(base, device, offset, val);
+	spin_unlock_irqrestore(&pmb->lock, flags);
+
+	return err;
+}
+
+static int bcm_pmb_power_off_zone(struct bcm_pmb *pmb, int bus, u8 device,
+				  int zone)
+{
+	int offset;
+	u32 val;
+	int err;
+
+	offset = BPCM_ZONE0 + zone * BPCM_ZONE_SIZE + BPCM_ZONE_CONTROL;
+
+	err = bcm_pmb_bpcm_read(pmb, bus, device, offset, &val);
+	if (err)
+		return err;
+
+	val |= BPCM_ZONE_CONTROL_PWR_DN_REQ;
+	val &= ~BPCM_ZONE_CONTROL_PWR_UP_REQ;
+
+	err = bcm_pmb_bpcm_write(pmb, bus, device, offset, val);
+
+	return err;
+}
+
+static int bcm_pmb_power_on_zone(struct bcm_pmb *pmb, int bus, u8 device,
+				 int zone)
+{
+	int offset;
+	u32 val;
+	int err;
+
+	offset = BPCM_ZONE0 + zone * BPCM_ZONE_SIZE + BPCM_ZONE_CONTROL;
+
+	err = bcm_pmb_bpcm_read(pmb, bus, device, offset, &val);
+	if (err)
+		return err;
+
+	if (!(val & BPCM_ZONE_CONTROL_PWR_ON_STATE)) {
+		val &= ~BPCM_ZONE_CONTROL_PWR_DN_REQ;
+		val |= BPCM_ZONE_CONTROL_DPG_CTL_EN;
+		val |= BPCM_ZONE_CONTROL_PWR_UP_REQ;
+		val |= BPCM_ZONE_CONTROL_MEM_PWR_CTL_EN;
+		val |= BPCM_ZONE_CONTROL_BLK_RESET_ASSERT;
+
+		err = bcm_pmb_bpcm_write(pmb, bus, device, offset, val);
+	}
+
+	return err;
+}
+
+static int bcm_pmb_power_off_device(struct bcm_pmb *pmb, int bus, u8 device)
+{
+	int offset;
+	u32 val;
+	int err;
+
+	/* Entire device can be powered off by powering off the 0th zone */
+	offset = BPCM_ZONE0 + BPCM_ZONE_CONTROL;
+
+	err = bcm_pmb_bpcm_read(pmb, bus, device, offset, &val);
+	if (err)
+		return err;
+
+	if (!(val & BPCM_ZONE_CONTROL_PWR_OFF_STATE)) {
+		val = BPCM_ZONE_CONTROL_PWR_DN_REQ;
+
+		err = bcm_pmb_bpcm_write(pmb, bus, device, offset, val);
+	}
+
+	return err;
+}
+
+static int bcm_pmb_power_on_device(struct bcm_pmb *pmb, int bus, u8 device)
+{
+	u32 val;
+	int err;
+	int i;
+
+	err = bcm_pmb_bpcm_read(pmb, bus, device, BPCM_CAPABILITIES, &val);
+	if (err)
+		return err;
+
+	for (i = 0; i < (val & BPCM_CAP_NUM_ZONES); i++) {
+		err = bcm_pmb_power_on_zone(pmb, bus, device, i);
+		if (err)
+			return err;
+	}
+
+	return err;
+}
+
+static int bcm_pmb_power_on(struct generic_pm_domain *genpd)
+{
+	struct bcm_pmb_pm_domain *pd = container_of(genpd, struct bcm_pmb_pm_domain, genpd);
+	const struct bcm_pmb_pd_data *data = pd->data;
+	struct bcm_pmb *pmb = pd->pmb;
+
+	switch (data->id) {
+	case BCM_PMB_PCIE0:
+	case BCM_PMB_PCIE1:
+	case BCM_PMB_PCIE2:
+		return bcm_pmb_power_on_zone(pmb, data->bus, data->device, 0);
+	case BCM_PMB_HOST_USB:
+		return bcm_pmb_power_on_device(pmb, data->bus, data->device);
+	default:
+		dev_err(pmb->dev, "unsupported device id: %d\n", data->id);
+		return -EINVAL;
+	}
+}
+
+static int bcm_pmb_power_off(struct generic_pm_domain *genpd)
+{
+	struct bcm_pmb_pm_domain *pd = container_of(genpd, struct bcm_pmb_pm_domain, genpd);
+	const struct bcm_pmb_pd_data *data = pd->data;
+	struct bcm_pmb *pmb = pd->pmb;
+
+	switch (data->id) {
+	case BCM_PMB_PCIE0:
+	case BCM_PMB_PCIE1:
+	case BCM_PMB_PCIE2:
+		return bcm_pmb_power_off_zone(pmb, data->bus, data->device, 0);
+	case BCM_PMB_HOST_USB:
+		return bcm_pmb_power_off_device(pmb, data->bus, data->device);
+	default:
+		dev_err(pmb->dev, "unsupported device id: %d\n", data->id);
+		return -EINVAL;
+	}
+}
+
+static int bcm_pmb_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	const struct bcm_pmb_pd_data *table;
+	const struct bcm_pmb_pd_data *e;
+	struct resource *res;
+	struct bcm_pmb *pmb;
+	int max_id;
+	int err;
+
+	pmb = devm_kzalloc(dev, sizeof(*pmb), GFP_KERNEL);
+	if (!pmb)
+		return -ENOMEM;
+
+	pmb->dev = dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	pmb->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(pmb->base))
+		return PTR_ERR(pmb->base);
+
+	spin_lock_init(&pmb->lock);
+
+	pmb->little_endian = !of_device_is_big_endian(dev->of_node);
+
+	table = of_device_get_match_data(dev);
+	if (!table)
+		return -EINVAL;
+
+	max_id = 0;
+	for (e = table; e->name; e++)
+		max_id = max(max_id, e->id);
+
+	pmb->genpd_onecell_data.num_domains = max_id + 1;
+	pmb->genpd_onecell_data.domains =
+		devm_kcalloc(dev, pmb->genpd_onecell_data.num_domains,
+			     sizeof(struct generic_pm_domain *), GFP_KERNEL);
+	if (!pmb->genpd_onecell_data.domains)
+		return -ENOMEM;
+
+	for (e = table; e->name; e++) {
+		struct bcm_pmb_pm_domain *pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
+
+		pd->pmb = pmb;
+		pd->data = e;
+		pd->genpd.name = e->name;
+		pd->genpd.power_on = bcm_pmb_power_on;
+		pd->genpd.power_off = bcm_pmb_power_off;
+
+		pm_genpd_init(&pd->genpd, NULL, true);
+		pmb->genpd_onecell_data.domains[e->id] = &pd->genpd;
+	}
+
+	err = of_genpd_add_provider_onecell(dev->of_node, &pmb->genpd_onecell_data);
+	if (err) {
+		dev_err(dev, "failed to add genpd provider: %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
+
+static const struct bcm_pmb_pd_data bcm_pmb_bcm4908_data[] = {
+	{ .name = "pcie2", .id = BCM_PMB_PCIE2, .bus = 0, .device = 2, },
+	{ .name = "pcie0", .id = BCM_PMB_PCIE0, .bus = 1, .device = 14, },
+	{ .name = "pcie1", .id = BCM_PMB_PCIE1, .bus = 1, .device = 15, },
+	{ .name = "usb", .id = BCM_PMB_HOST_USB, .bus = 1, .device = 17, },
+	{ },
+};
+
+static const struct of_device_id bcm_pmb_of_match[] = {
+	{ .compatible = "brcm,bcm4908-pmb", .data = &bcm_pmb_bcm4908_data, },
+	{ },
+};
+
+static struct platform_driver bcm_pmb_driver = {
+	.driver = {
+		.name = "bcm-pmb",
+		.of_match_table = bcm_pmb_of_match,
+	},
+	.probe  = bcm_pmb_probe,
+};
+
+builtin_platform_driver(bcm_pmb_driver);

drivers/soc/bcm/brcmstb/common.c

···
 #include <linux/soc/brcmstb/brcmstb.h>
 #include <linux/sys_soc.h>
 
-#include <soc/brcmstb/common.h>
-
 static u32 family_id;
 static u32 product_id;
 
···
 	{ .compatible = "brcm,brcmstb", },
 	{ }
 };
-
-bool soc_is_brcmstb(void)
-{
-	const struct of_device_id *match;
-	struct device_node *root;
-
-	root = of_find_node_by_path("/");
-	if (!root)
-		return false;
-
-	match = of_match_node(brcmstb_machine_match, root);
-	of_node_put(root);
-
-	return match != NULL;
-}
 
 u32 brcmstb_get_family_id(void)
 {

drivers/soc/imx/soc-imx8m.c

···
 
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/module.h>
+#include <linux/nvmem-consumer.h>
 #include <linux/of_address.h>
 #include <linux/slab.h>
 #include <linux/sys_soc.h>
···
 
 struct imx8_soc_data {
 	char *name;
-	u32 (*soc_revision)(void);
+	u32 (*soc_revision)(struct device *dev);
 };
 
 static u64 soc_uid;
···
 static inline u32 imx8mq_soc_revision_from_atf(void) { return 0; };
 #endif
 
-static u32 __init imx8mq_soc_revision(void)
+static u32 __init imx8mq_soc_revision(struct device *dev)
 {
 	struct device_node *np;
 	void __iomem *ocotp_base;
···
 			rev = REV_B1;
 	}
 
-	soc_uid = readl_relaxed(ocotp_base + OCOTP_UID_HIGH);
-	soc_uid <<= 32;
-	soc_uid |= readl_relaxed(ocotp_base + OCOTP_UID_LOW);
+	if (dev) {
+		int ret;
+
+		ret = nvmem_cell_read_u64(dev, "soc_unique_id", &soc_uid);
+		if (ret) {
+			iounmap(ocotp_base);
+			of_node_put(np);
+			return ret;
+		}
+	} else {
+		soc_uid = readl_relaxed(ocotp_base + OCOTP_UID_HIGH);
+		soc_uid <<= 32;
+		soc_uid |= readl_relaxed(ocotp_base + OCOTP_UID_LOW);
+	}
 
 	iounmap(ocotp_base);
 	of_node_put(np);
···
 	of_node_put(np);
 }
 
-static u32 __init imx8mm_soc_revision(void)
+static u32 __init imx8mm_soc_revision(struct device *dev)
 {
 	struct device_node *np;
 	void __iomem *anatop_base;
···
 	iounmap(anatop_base);
 	of_node_put(np);
 
-	imx8mm_soc_uid();
+	if (dev) {
+		int ret;
+
+		ret = nvmem_cell_read_u64(dev, "soc_unique_id", &soc_uid);
+		if (ret)
+			return ret;
+	} else {
+		imx8mm_soc_uid();
+	}
 
 	return rev;
 }
···
 	.soc_revision = imx8mm_soc_revision,
 };
 
-static __maybe_unused const struct of_device_id imx8_soc_match[] = {
+static __maybe_unused const struct of_device_id imx8_machine_match[] = {
 	{ .compatible = "fsl,imx8mq", .data = &imx8mq_soc_data, },
 	{ .compatible = "fsl,imx8mm", .data = &imx8mm_soc_data, },
 	{ .compatible = "fsl,imx8mn", .data = &imx8mn_soc_data, },
 	{ .compatible = "fsl,imx8mp", .data = &imx8mp_soc_data, },
+	{ }
+};
+
+static __maybe_unused const struct of_device_id imx8_soc_match[] = {
+	{ .compatible = "fsl,imx8mq-soc", .data = &imx8mq_soc_data, },
+	{ .compatible = "fsl,imx8mm-soc", .data = &imx8mm_soc_data, },
+	{ .compatible = "fsl,imx8mn-soc", .data = &imx8mn_soc_data, },
+	{ .compatible = "fsl,imx8mp-soc", .data = &imx8mp_soc_data, },
 	{ }
 };
 
···
 	kasprintf(GFP_KERNEL, "%d.%d", (soc_rev >> 4) & 0xf,  soc_rev & 0xf) : \
 	"unknown"
 
-static int __init imx8_soc_init(void)
+static int imx8_soc_info(struct platform_device *pdev)
 {
 	struct soc_device_attribute *soc_dev_attr;
 	struct soc_device *soc_dev;
···
 	if (ret)
 		goto free_soc;
 
-	id = of_match_node(imx8_soc_match, of_root);
+	if (pdev)
+		id = of_match_node(imx8_soc_match, pdev->dev.of_node);
+	else
+		id = of_match_node(imx8_machine_match, of_root);
 	if (!id) {
 		ret = -ENODEV;
 		goto free_soc;
···
 	data = id->data;
 	if (data) {
 		soc_dev_attr->soc_id = data->name;
-		if (data->soc_revision)
-			soc_rev = data->soc_revision();
+		if (data->soc_revision) {
+			if (pdev) {
+				soc_rev = data->soc_revision(&pdev->dev);
+				ret = soc_rev;
+				if (ret < 0)
+					goto free_soc;
+			} else {
+				soc_rev = data->soc_revision(NULL);
+			}
+		}
 	}
 
 	soc_dev_attr->revision = imx8_revision(soc_rev);
···
 	kfree(soc_dev_attr);
 	return ret;
 }
+
+/* Retain device_initcall is for backward compatibility with DTS. */
+static int __init imx8_soc_init(void)
+{
+	if (of_find_matching_node_and_match(NULL, imx8_soc_match, NULL))
+		return 0;
+
+	return imx8_soc_info(NULL);
+}
 device_initcall(imx8_soc_init);
+
+static struct platform_driver imx8_soc_info_driver = {
+	.probe = imx8_soc_info,
+	.driver = {
+		.name = "imx8_soc_info",
+		.of_match_table = imx8_soc_match,
+	},
+};
+
+module_platform_driver(imx8_soc_info_driver);
+MODULE_LICENSE("GPL v2");

drivers/soc/mediatek/mt8167-pm-domains.h

···
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __SOC_MEDIATEK_MT8167_PM_DOMAINS_H
+#define __SOC_MEDIATEK_MT8167_PM_DOMAINS_H
+
+#include "mtk-pm-domains.h"
+#include <dt-bindings/power/mt8167-power.h>
+
+#define MT8167_PWR_STATUS_MFG_2D	BIT(24)
+#define MT8167_PWR_STATUS_MFG_ASYNC	BIT(25)
+
+/*
+ * MT8167 power domain support
+ */
+
+static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = {
+	[MT8167_POWER_DOMAIN_MM] = {
+		.sta_mask = PWR_STATUS_DISP,
+		.ctl_offs = SPM_DIS_PWR_CON,
+		.sram_pdn_bits = GENMASK(11, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_UPDATE_TOPAXI(MT8167_TOP_AXI_PROT_EN_MM_EMI |
+					       MT8167_TOP_AXI_PROT_EN_MCU_MM),
+		},
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
+	},
+	[MT8167_POWER_DOMAIN_VDEC] = {
+		.sta_mask = PWR_STATUS_VDEC,
+		.ctl_offs = SPM_VDE_PWR_CON,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
+	},
+	[MT8167_POWER_DOMAIN_ISP] = {
+		.sta_mask = PWR_STATUS_ISP,
+		.ctl_offs = SPM_ISP_PWR_CON,
+		.sram_pdn_bits = GENMASK(11, 8),
+		.sram_pdn_ack_bits = GENMASK(13, 12),
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
+	},
+	[MT8167_POWER_DOMAIN_MFG_ASYNC] = {
+		.sta_mask = MT8167_PWR_STATUS_MFG_ASYNC,
+		.ctl_offs = SPM_MFG_ASYNC_PWR_CON,
+		.sram_pdn_bits = 0,
+		.sram_pdn_ack_bits = 0,
+		.bp_infracfg = {
+			BUS_PROT_UPDATE_TOPAXI(MT8167_TOP_AXI_PROT_EN_MCU_MFG |
+					       MT8167_TOP_AXI_PROT_EN_MFG_EMI),
+		},
+	},
+	[MT8167_POWER_DOMAIN_MFG_2D] = {
+		.sta_mask = MT8167_PWR_STATUS_MFG_2D,
+		.ctl_offs = SPM_MFG_2D_PWR_CON,
+		.sram_pdn_bits = GENMASK(11, 8),
+		.sram_pdn_ack_bits = GENMASK(15, 12),
+	},
+	[MT8167_POWER_DOMAIN_MFG] = {
+		.sta_mask = PWR_STATUS_MFG,
+		.ctl_offs = SPM_MFG_PWR_CON,
+		.sram_pdn_bits = GENMASK(11, 8),
+		.sram_pdn_ack_bits = GENMASK(15, 12),
+	},
+	[MT8167_POWER_DOMAIN_CONN] = {
+		.sta_mask = PWR_STATUS_CONN,
+		.ctl_offs = SPM_CONN_PWR_CON,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = 0,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
+		.bp_infracfg = {
+			BUS_PROT_UPDATE_TOPAXI(MT8167_TOP_AXI_PROT_EN_CONN_EMI |
+					       MT8167_TOP_AXI_PROT_EN_CONN_MCU |
+					       MT8167_TOP_AXI_PROT_EN_MCU_CONN),
+		},
+	},
+};
+
+static const struct scpsys_soc_data mt8167_scpsys_data = {
+	.domains_data = scpsys_domain_data_mt8167,
+	.num_domains = ARRAY_SIZE(scpsys_domain_data_mt8167),
+	.pwr_sta_offs = SPM_PWR_STATUS,
+	.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
+};
+
+#endif /* __SOC_MEDIATEK_MT8167_PM_DOMAINS_H */
+

drivers/soc/mediatek/mt8183-pm-domains.h

···
 		.ctl_offs = 0x0338,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_DOMAIN_SUPPLY,
 	},
 	[MT8183_POWER_DOMAIN_MFG_CORE0] = {
 		.sta_mask = BIT(7),

drivers/soc/mediatek/mtk-cmdq-helper.c

···
 }
 EXPORT_SYMBOL(cmdq_pkt_flush_async);
 
-struct cmdq_flush_completion {
-	struct completion cmplt;
-	bool err;
-};
-
-static void cmdq_pkt_flush_cb(struct cmdq_cb_data data)
-{
-	struct cmdq_flush_completion *cmplt;
-
-	cmplt = (struct cmdq_flush_completion *)data.data;
-	if (data.sta != CMDQ_CB_NORMAL)
-		cmplt->err = true;
-	else
-		cmplt->err = false;
-	complete(&cmplt->cmplt);
-}
-
-int cmdq_pkt_flush(struct cmdq_pkt *pkt)
-{
-	struct cmdq_flush_completion cmplt;
-	int err;
-
-	init_completion(&cmplt.cmplt);
-	err = cmdq_pkt_flush_async(pkt, cmdq_pkt_flush_cb, &cmplt);
-	if (err < 0)
-		return err;
-	wait_for_completion(&cmplt.cmplt);
-
-	return cmplt.err ? -EFAULT : 0;
-}
-EXPORT_SYMBOL(cmdq_pkt_flush);
-
 MODULE_LICENSE("GPL v2");

drivers/soc/mediatek/mtk-pm-domains.c

···
 #include <linux/platform_device.h>
 #include <linux/pm_domain.h>
 #include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
 #include <linux/soc/mediatek/infracfg.h>
 
+#include "mt8167-pm-domains.h"
 #include "mt8173-pm-domains.h"
 #include "mt8183-pm-domains.h"
 #include "mt8192-pm-domains.h"
···
 	struct clk_bulk_data *subsys_clks;
 	struct regmap *infracfg;
 	struct regmap *smi;
+	struct regulator *supply;
 };
 
 struct scpsys {
···
 	return _scpsys_bus_protect_disable(pd->data->bp_infracfg, pd->infracfg);
 }
 
+static int scpsys_regulator_enable(struct regulator *supply)
+{
+	return supply ? regulator_enable(supply) : 0;
+}
+
+static int scpsys_regulator_disable(struct regulator *supply)
+{
+	return supply ? regulator_disable(supply) : 0;
+}
+
 static int scpsys_power_on(struct generic_pm_domain *genpd)
 {
 	struct scpsys_domain *pd = container_of(genpd, struct scpsys_domain, genpd);
···
 	bool tmp;
 	int ret;
 
-	ret = clk_bulk_enable(pd->num_clks, pd->clks);
+	ret = scpsys_regulator_enable(pd->supply);
 	if (ret)
 		return ret;
+
+	ret = clk_bulk_enable(pd->num_clks, pd->clks);
+	if (ret)
+		goto err_reg;
 
 	/* subsys power on */
 	regmap_set_bits(scpsys->base, pd->data->ctl_offs, PWR_ON_BIT);
···
 	clk_bulk_disable(pd->num_subsys_clks, pd->subsys_clks);
 err_pwr_ack:
 	clk_bulk_disable(pd->num_clks, pd->clks);
+err_reg:
+	scpsys_regulator_disable(pd->supply);
 	return ret;
 }
 
···
 
 	clk_bulk_disable(pd->num_clks, pd->clks);
 
+	scpsys_regulator_disable(pd->supply);
+
 	return 0;
 }
 
···
 {
 	const struct scpsys_domain_data *domain_data;
 	struct scpsys_domain *pd;
+	struct device_node *root_node = scpsys->dev->of_node;
 	struct property *prop;
 	const char *clk_name;
 	int i, ret, num_clks;
···
 
 	pd->data = domain_data;
 	pd->scpsys = scpsys;
+
+	if (MTK_SCPD_CAPS(pd, MTK_SCPD_DOMAIN_SUPPLY)) {
+		/*
+		 * Find regulator in current power domain node.
+		 * devm_regulator_get() finds regulator in a node and its child
+		 * node, so set of_node to current power domain node then change
+		 * back to original node after regulator is found for current
+		 * power domain node.
+		 */
+		scpsys->dev->of_node = node;
+		pd->supply = devm_regulator_get(scpsys->dev, "domain");
+		scpsys->dev->of_node = root_node;
+		if (IS_ERR(pd->supply)) {
+			dev_err_probe(scpsys->dev, PTR_ERR(pd->supply),
+				      "%pOF: failed to get power supply.\n",
+				      node);
+			return ERR_CAST(pd->supply);
+		}
+	}
 
 	pd->infracfg = syscon_regmap_lookup_by_phandle_optional(node, "mediatek,infracfg");
 	if (IS_ERR(pd->infracfg))
···
 
 		child_pd = scpsys_add_one_domain(scpsys, child);
 		if (IS_ERR(child_pd)) {
-			ret = PTR_ERR(child_pd);
-			dev_err(scpsys->dev, "%pOF: failed to get child domain id\n", child);
+			dev_err_probe(scpsys->dev, PTR_ERR(child_pd),
+				      "%pOF: failed to get child domain id\n", child);
 			goto err_put_node;
 		}
 
···
 }
 
 static const struct of_device_id scpsys_of_match[] = {
+	{
+		.compatible = "mediatek,mt8167-power-controller",
+		.data = &mt8167_scpsys_data,
+	},
 	{
 		.compatible = "mediatek,mt8173-power-controller",
 		.data = &mt8173_scpsys_data,

drivers/soc/mediatek/mtk-pm-domains.h

···
 #define MTK_SCPD_FWAIT_SRAM		BIT(1)
 #define MTK_SCPD_SRAM_ISO		BIT(2)
 #define MTK_SCPD_KEEP_DEFAULT_OFF	BIT(3)
+#define MTK_SCPD_DOMAIN_SUPPLY		BIT(4)
 #define MTK_SCPD_CAPS(_scpd, _x)	((_scpd)->data->caps & (_x))
 
 #define SPM_VDE_PWR_CON			0x0210
···
 #define SPM_VEN_PWR_CON			0x0230
 #define SPM_ISP_PWR_CON			0x0238
 #define SPM_DIS_PWR_CON			0x023c
+#define SPM_CONN_PWR_CON		0x0280
 #define SPM_VEN2_PWR_CON		0x0298
 #define SPM_AUDIO_PWR_CON		0x029c
 #define SPM_MFG_2D_PWR_CON		0x02c0

drivers/soc/qcom/llcc-qcom.c

···
  *
  */
 
+#include <linux/bitfield.h>
 #include <linux/bitmap.h>
 #include <linux/bitops.h>
 #include <linux/device.h>
···
 
 #define CACHE_LINE_SIZE_SHIFT         6
 
+#define LLCC_COMMON_HW_INFO           0x00030000
+#define LLCC_MAJOR_VERSION_MASK       GENMASK(31, 24)
+
 #define LLCC_COMMON_STATUS0           0x0003000c
 #define LLCC_LB_CNT_MASK              GENMASK(31, 28)
 #define LLCC_LB_CNT_SHIFT             28
···
 
 #define LLCC_TRP_SCID_DIS_CAP_ALLOC   0x21f00
 #define LLCC_TRP_PCB_ACT              0x21f04
+#define LLCC_TRP_WRSC_EN              0x21f20
 
 #define BANK_OFFSET_STRIDE	      0x80000
 
···
  *               then the ways assigned to this client are not flushed on power
  *               collapse.
  * @activate_on_init: Activate the slice immediately after it is programmed
+ * @write_scid_en: Bit enables write cache support for a given scid.
  */
 struct llcc_slice_config {
 	u32 usecase_id;
···
 	bool dis_cap_alloc;
 	bool retain_on_pc;
 	bool activate_on_init;
+	bool write_scid_en;
 };
 
 struct qcom_llcc_config {
···
 	{  LLCC_WRCACHE, 31, 128,  1, 1, 0xFFF, 0x0,   0, 0, 0, 0, 0 },
 };
 
+static const struct llcc_slice_config sm8250_data[] =  {
+	{ LLCC_CPUSS,    1, 3072, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 1, 0 },
+	{ LLCC_VIDSC0,   2, 512,  3, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+	{ LLCC_AUDIO,    6, 1024, 1, 0, 0xfff, 0x0, 0, 0, 0, 0, 0, 0 },
+	{ LLCC_CMPT,    10, 1024, 1, 0, 0xfff, 0x0, 0, 0, 0, 0, 0, 0 },
+	{ LLCC_GPUHTW,  11, 1024, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+	{ LLCC_GPU,     12, 1024, 1, 0, 0xfff, 0x0, 0, 0, 0, 1, 0, 1 },
+	{ LLCC_MMUHWT,  13, 1024, 1, 1, 0xfff, 0x0, 0, 0, 0, 0, 1, 0 },
+	{ LLCC_CMPTDMA, 15, 1024, 1, 0, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+	{ LLCC_DISP,    16, 3072, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+	{ LLCC_VIDFW,   17, 512,  1, 0, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+	{ LLCC_AUDHW,   22, 1024, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+	{ LLCC_NPU,     23, 3072, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+	{ LLCC_WLHW,    24, 1024, 1, 0, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+	{ LLCC_CVP,     28, 256,  3, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+	{ LLCC_APTCM,   30, 128,  3, 0, 0x0,   0x3, 1, 0, 0, 1, 0, 0 },
+	{ LLCC_WRCACHE, 31, 256,  1, 1, 0xfff, 0x0, 0, 0, 0, 0, 1, 0 },
+};
+
 static const struct qcom_llcc_config sc7180_cfg = {
 	.sct_data	= sc7180_data,
 	.size		= ARRAY_SIZE(sc7180_data),
···
 static const struct qcom_llcc_config sm8150_cfg = {
 	.sct_data       = sm8150_data,
 	.size           = ARRAY_SIZE(sm8150_data),
+};
+
+static const struct qcom_llcc_config sm8250_cfg = {
+	.sct_data       = sm8250_data,
+	.size           = ARRAY_SIZE(sm8250_data),
 };
 
 static struct llcc_drv_data *drv_data = (void *) -EPROBE_DEFER;
···
 			return ret;
 	}
 
+	if (drv_data->major_version == 2) {
+		u32 wren;
+
+		wren = config->write_scid_en << config->slice_id;
+		ret = regmap_update_bits(drv_data->bcast_regmap, LLCC_TRP_WRSC_EN,
+					 BIT(config->slice_id), wren);
+		if (ret)
+			return ret;
+	}
+
 	if (config->activate_on_init) {
 		desc.slice_id = config->slice_id;
 		ret = llcc_slice_activate(&desc);
···
 	const struct qcom_llcc_config *cfg;
 	const struct llcc_slice_config *llcc_cfg;
 	u32 sz;
+	u32 version;
 
 	drv_data = devm_kzalloc(dev, sizeof(*drv_data), GFP_KERNEL);
 	if (!drv_data) {
···
 		ret = PTR_ERR(drv_data->bcast_regmap);
 		goto err;
 	}
+
+	/* Extract major version of the IP */
+	ret = regmap_read(drv_data->bcast_regmap, LLCC_COMMON_HW_INFO, &version);
+	if (ret)
+		goto err;
+
+	drv_data->major_version = FIELD_GET(LLCC_MAJOR_VERSION_MASK, version);
 
 	ret = regmap_read(drv_data->regmap, LLCC_COMMON_STATUS0,
 						&num_banks);
···
 	{ .compatible = "qcom,sc7180-llcc", .data = &sc7180_cfg },
 	{ .compatible = "qcom,sdm845-llcc", .data = &sdm845_cfg },
 	{ .compatible = "qcom,sm8150-llcc", .data = &sm8150_cfg },
+	{ .compatible = "qcom,sm8250-llcc", .data = &sm8250_cfg },
 	{ }
 };
 

drivers/soc/qcom/ocmem.c

···
 {
 	struct platform_device *pdev;
 	struct device_node *devnode;
+	struct ocmem *ocmem;
 
 	devnode = of_parse_phandle(dev->of_node, "sram", 0);
 	if (!devnode || !devnode->parent) {
···
 		return ERR_PTR(-EPROBE_DEFER);
 	}
 
-	return platform_get_drvdata(pdev);
+	ocmem = platform_get_drvdata(pdev);
+	if (!ocmem) {
+		dev_err(dev, "Cannot get ocmem\n");
+		return ERR_PTR(-ENODEV);
+	}
+	return ocmem;
 }
 EXPORT_SYMBOL(of_get_ocmem);
 

drivers/soc/qcom/qcom_aoss.c

···
 	{ .compatible = "qcom,sdm845-aoss-qmp", },
 	{ .compatible = "qcom,sm8150-aoss-qmp", },
 	{ .compatible = "qcom,sm8250-aoss-qmp", },
+	{ .compatible = "qcom,sm8350-aoss-qmp", },
 	{}
 };
 MODULE_DEVICE_TABLE(of, qmp_dt_match);

drivers/soc/qcom/rpmh-rsc.c

···
 	if (bitmap_empty(tcs->slots, MAX_TCS_SLOTS))
 		return;
 
-	for (m = tcs->offset; m < tcs->offset + tcs->num_tcs; m++) {
+	for (m = tcs->offset; m < tcs->offset + tcs->num_tcs; m++)
 		write_tcs_reg_sync(drv, RSC_DRV_CMD_ENABLE, m, 0);
-		write_tcs_reg_sync(drv, RSC_DRV_CMD_WAIT_FOR_CMPL, m, 0);
-	}
+
 	bitmap_zero(tcs->slots, MAX_TCS_SLOTS);
 }
 
···
 		enable = TCS_AMC_MODE_ENABLE;
 		write_tcs_reg_sync(drv, RSC_DRV_CONTROL, tcs_id, enable);
 		enable |= TCS_AMC_MODE_TRIGGER;
-		write_tcs_reg_sync(drv, RSC_DRV_CONTROL, tcs_id, enable);
+		write_tcs_reg(drv, RSC_DRV_CONTROL, tcs_id, enable);
 	}
 }
 
···
 skip:
 		/* Reclaim the TCS */
 		write_tcs_reg(drv, RSC_DRV_CMD_ENABLE, i, 0);
-		write_tcs_reg(drv, RSC_DRV_CMD_WAIT_FOR_CMPL, i, 0);
 		writel_relaxed(BIT(i), drv->tcs_base + RSC_DRV_IRQ_CLEAR);
 		spin_lock(&drv->lock);
 		clear_bit(i, drv->tcs_in_use);
···
 static void __tcs_buffer_write(struct rsc_drv *drv, int tcs_id, int cmd_id,
 			       const struct tcs_request *msg)
 {
-	u32 msgid, cmd_msgid;
+	u32 msgid;
+	u32 cmd_msgid = CMD_MSGID_LEN | CMD_MSGID_WRITE;
 	u32 cmd_enable = 0;
-	u32 cmd_complete;
 	struct tcs_cmd *cmd;
 	int i, j;
 
-	cmd_msgid = CMD_MSGID_LEN;
+	/* Convert all commands to RR when the request has wait_for_compl set */
 	cmd_msgid |= msg->wait_for_compl ? CMD_MSGID_RESP_REQ : 0;
-	cmd_msgid |= CMD_MSGID_WRITE;
-
-	cmd_complete = read_tcs_reg(drv, RSC_DRV_CMD_WAIT_FOR_CMPL, tcs_id);
 
 	for (i = 0, j = cmd_id; i < msg->num_cmds; i++, j++) {
 		cmd = &msg->cmds[i];
 		cmd_enable |= BIT(j);
-		cmd_complete |= cmd->wait << j;
 		msgid = cmd_msgid;
+		/*
+		 * Additionally, if the cmd->wait is set, make the command
+		 * response reqd even if the overall request was fire-n-forget.
+		 */
 		msgid |= cmd->wait ? CMD_MSGID_RESP_REQ : 0;
 
 		write_tcs_cmd(drv, RSC_DRV_CMD_MSGID, tcs_id, j, msgid);
···
 		trace_rpmh_send_msg(drv, tcs_id, j, msgid, cmd);
 	}
 
-	write_tcs_reg(drv, RSC_DRV_CMD_WAIT_FOR_CMPL, tcs_id, cmd_complete);
 	cmd_enable |= read_tcs_reg(drv, RSC_DRV_CMD_ENABLE, tcs_id);
 	write_tcs_reg(drv, RSC_DRV_CMD_ENABLE, tcs_id, cmd_enable);
 }
···
 		 * cleaned from rpmh_flush() by invoking rpmh_rsc_invalidate()
 		 */
 		write_tcs_reg_sync(drv, RSC_DRV_CMD_ENABLE, tcs_id, 0);
-		write_tcs_reg_sync(drv, RSC_DRV_CMD_WAIT_FOR_CMPL, tcs_id, 0);
 		enable_tcs_irq(drv, tcs_id, true);
 	}
 	spin_unlock_irqrestore(&drv->lock, flags);

drivers/soc/qcom/rpmpd.c

···
  * RPMPD_X is X encoded as a little-endian, lower-case, ASCII string */
 #define RPMPD_SMPA 0x61706d73
 #define RPMPD_LDOA 0x616f646c
+#define RPMPD_SMPB 0x62706d73
+#define RPMPD_LDOB 0x626f646c
 #define RPMPD_RWCX 0x78637772
 #define RPMPD_RWMX 0x786d7772
 #define RPMPD_RWLC 0x636c7772
···
 	.max_state = RPM_SMD_LEVEL_TURBO_HIGH,
 };
 
+/* msm8994 RPM Power domains */
+DEFINE_RPMPD_PAIR(msm8994, vddcx, vddcx_ao, SMPA, CORNER, 1);
+DEFINE_RPMPD_PAIR(msm8994, vddmx, vddmx_ao, SMPA, CORNER, 2);
+/* Attention! *Some* 8994 boards with pm8004 may use SMPC here! */
+DEFINE_RPMPD_CORNER(msm8994, vddgfx, SMPB, 2);
+
+DEFINE_RPMPD_VFC(msm8994, vddcx_vfc, SMPA, 1);
+DEFINE_RPMPD_VFC(msm8994, vddgfx_vfc, SMPB, 2);
+
+static struct rpmpd *msm8994_rpmpds[] = {
+	[MSM8994_VDDCX] =	&msm8994_vddcx,
+	[MSM8994_VDDCX_AO] =	&msm8994_vddcx_ao,
+	[MSM8994_VDDCX_VFC] =	&msm8994_vddcx_vfc,
+	[MSM8994_VDDMX] =	&msm8994_vddmx,
+	[MSM8994_VDDMX_AO] =	&msm8994_vddmx_ao,
+	[MSM8994_VDDGFX] =	&msm8994_vddgfx,
+	[MSM8994_VDDGFX_VFC] =	&msm8994_vddgfx_vfc,
+};
+
+static const struct rpmpd_desc msm8994_desc = {
+	.rpmpds = msm8994_rpmpds,
+	.num_pds = ARRAY_SIZE(msm8994_rpmpds),
+	.max_state = MAX_CORNER_RPMPD_STATE,
+};
+
 /* msm8996 RPM Power domains */
 DEFINE_RPMPD_PAIR(msm8996, vddcx, vddcx_ao, SMPA, CORNER, 1);
 DEFINE_RPMPD_PAIR(msm8996, vddmx, vddmx_ao, SMPA, CORNER, 2);
···
 	{ .compatible = "qcom,msm8916-rpmpd", .data = &msm8916_desc },
 	{ .compatible = "qcom,msm8939-rpmpd", .data = &msm8939_desc },
 	{ .compatible = "qcom,msm8976-rpmpd", .data = &msm8976_desc },
+	{ .compatible = "qcom,msm8994-rpmpd", .data = &msm8994_desc },
 	{ .compatible = "qcom,msm8996-rpmpd", .data = &msm8996_desc },
 	{ .compatible = "qcom,msm8998-rpmpd", .data = &msm8998_desc },
 	{ .compatible = "qcom,qcs404-rpmpd", .data = &qcs404_desc },

drivers/soc/qcom/smem.c

···
 	header = smem->regions[0].virt_base + le32_to_cpu(entry->offset);
 
 	if (memcmp(header->magic, SMEM_PART_MAGIC, sizeof(header->magic))) {
-		dev_err(smem->dev, "bad partition magic %02x %02x %02x %02x\n",
-			header->magic[0], header->magic[1],
-			header->magic[2], header->magic[3]);
+		dev_err(smem->dev, "bad partition magic %4ph\n", header->magic);
 		return NULL;
 	}
 

drivers/soc/qcom/socinfo.c

···
 #include <linux/sys_soc.h>
 #include <linux/types.h>
 
+#include <asm/unaligned.h>
+
 /*
  * SoC version type with major number in the upper 16 bits and minor
  * number in the lower 16 bits.
···
 	[23] = "PM8038",
 	[24] = "PM8922",
 	[25] = "PM8917",
+	[30] = "PM8150",
+	[31] = "PM8150L",
+	[32] = "PM8150B",
+	[33] = "PMK8002",
+	[36] = "PM8009",
 };
 #endif /* CONFIG_DEBUG_FS */
 
···
 	{ 250, "MSM8616" },
 	{ 251, "MSM8992" },
 	{ 253, "APQ8094" },
+	{ 290, "MDM9607" },
 	{ 291, "APQ8096" },
+	{ 292, "MSM8998" },
 	{ 293, "MSM8953" },
+	{ 296, "MDM8207" },
+	{ 297, "MDM9207" },
+	{ 298, "MDM9307" },
+	{ 299, "MDM9628" },
 	{ 304, "APQ8053" },
 	{ 305, "MSM8996SG" },
 	{ 310, "MSM8996AU" },
 	{ 311, "APQ8096AU" },
 	{ 312, "APQ8096SG" },
+	{ 317, "SDM660" },
 	{ 318, "SDM630" },
+	{ 319, "APQ8098" },
 	{ 321, "SDM845" },
+	{ 322, "MDM9206" },
+	{ 324, "SDA660" },
+	{ 325, "SDM658" },
+	{ 326, "SDA658" },
+	{ 327, "SDA630" },
 	{ 338, "SDM450" },
 	{ 341, "SDA845" },
+	{ 345, "SDM636" },
+	{ 346, "SDA636" },
 	{ 349, "SDM632" },
 	{ 350, "SDA632" },
 	{ 351, "SDA450" },
 	{ 356, "SM8250" },
 	{ 402, "IPQ6018" },
 	{ 425, "SC7180" },
+	{ 455, "QRB5165" },
 };
 
 static const char *socinfo_machine(struct device *dev, unsigned int id)
···
 }
 
 #define DEBUGFS_ADD(info, name)						\
-	debugfs_create_file(__stringify(name), 0400,			\
+	debugfs_create_file(__stringify(name), 0444,			\
 			    qcom_socinfo->dbg_root,			\
 			    info, &qcom_ ##name## _ops)
 
···
 	if (model < 0)
 		return -EINVAL;
 
-	if (model <= ARRAY_SIZE(pmic_models) && pmic_models[model])
+	if (model < ARRAY_SIZE(pmic_models) && pmic_models[model])
 		seq_printf(seq, "%s\n", pmic_models[model]);
 	else
 		seq_printf(seq, "unknown (%d)\n", model);
+
+	return 0;
+}
+
+static int qcom_show_pmic_model_array(struct seq_file *seq, void *p)
+{
+	struct socinfo *socinfo = seq->private;
+	unsigned int num_pmics = le32_to_cpu(socinfo->num_pmics);
+	unsigned int pmic_array_offset = le32_to_cpu(socinfo->pmic_array_offset);
+	int i;
+	void *ptr = socinfo;
+
+	ptr += pmic_array_offset;
+
+	/* No need for bounds checking, it happened at socinfo_debugfs_init */
+	for (i = 0; i < num_pmics; i++) {
+		unsigned int model = SOCINFO_MINOR(get_unaligned_le32(ptr + 2 * i * sizeof(u32)));
+		unsigned int die_rev = get_unaligned_le32(ptr + (2 * i + 1) * sizeof(u32));
+
+		if (model < ARRAY_SIZE(pmic_models) && pmic_models[model])
+			seq_printf(seq, "%s %u.%u\n", pmic_models[model],
+				   SOCINFO_MAJOR(die_rev),
+				   SOCINFO_MINOR(die_rev));
+		else
+			seq_printf(seq, "unknown (%d)\n", model);
+	}
 
 	return 0;
 }
···
 
 QCOM_OPEN(build_id, qcom_show_build_id);
 QCOM_OPEN(pmic_model, qcom_show_pmic_model);
+QCOM_OPEN(pmic_model_array, qcom_show_pmic_model_array);
 QCOM_OPEN(pmic_die_rev, qcom_show_pmic_die_revision);
 QCOM_OPEN(chip_id, qcom_show_chip_id);
 
···
 DEFINE_IMAGE_OPS(oem);
 
 static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
-				 struct socinfo *info)
+				 struct socinfo *info, size_t info_size)
 {
 	struct smem_image_version *versions;
 	struct dentry *dentry;
 	size_t size;
 	int i;
+	unsigned int num_pmics;
+	unsigned int pmic_array_offset;
 
 	qcom_socinfo->dbg_root = debugfs_create_dir("qcom_socinfo", NULL);
 
 	qcom_socinfo->info.fmt = __le32_to_cpu(info->fmt);
 
-	debugfs_create_x32("info_fmt", 0400, qcom_socinfo->dbg_root,
+	debugfs_create_x32("info_fmt", 0444, qcom_socinfo->dbg_root,
 			   &qcom_socinfo->info.fmt);
 
 	switch (qcom_socinfo->info.fmt) {
 	case SOCINFO_VERSION(0, 15):
 		qcom_socinfo->info.nmodem_supported = __le32_to_cpu(info->nmodem_supported);
 
-		debugfs_create_u32("nmodem_supported", 0400, qcom_socinfo->dbg_root,
+		debugfs_create_u32("nmodem_supported", 0444, qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.nmodem_supported);
 		fallthrough;
 	case SOCINFO_VERSION(0, 14):
···
 		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);
 
-		debugfs_create_u32("num_clusters", 0400, qcom_socinfo->dbg_root,
+		debugfs_create_u32("num_clusters", 0444, qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.num_clusters);
-		debugfs_create_u32("ncluster_array_offset", 0400, qcom_socinfo->dbg_root,
+		debugfs_create_u32("ncluster_array_offset", 0444, qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.ncluster_array_offset);
-		debugfs_create_u32("num_defective_parts", 0400, qcom_socinfo->dbg_root,
+		debugfs_create_u32("num_defective_parts", 0444, qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.num_defective_parts);
-		debugfs_create_u32("ndefective_parts_array_offset", 0400, qcom_socinfo->dbg_root,
+		debugfs_create_u32("ndefective_parts_array_offset", 0444, qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.ndefective_parts_array_offset);
 		fallthrough;
 	case SOCINFO_VERSION(0, 13):
 		qcom_socinfo->info.nproduct_id = __le32_to_cpu(info->nproduct_id);
 
-		debugfs_create_u32("nproduct_id", 0400, qcom_socinfo->dbg_root,
+		debugfs_create_u32("nproduct_id", 0444, qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.nproduct_id);
 		DEBUGFS_ADD(info, chip_id);
 		fallthrough;
···
 		qcom_socinfo->info.raw_device_num =
 			__le32_to_cpu(info->raw_device_num);
 
-		debugfs_create_x32("chip_family", 0400, qcom_socinfo->dbg_root,
+		debugfs_create_x32("chip_family", 0444, qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.chip_family);
-		debugfs_create_x32("raw_device_family", 0400,
+		debugfs_create_x32("raw_device_family", 0444,
 				   qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.raw_device_family);
-		debugfs_create_x32("raw_device_number", 0400,
+		debugfs_create_x32("raw_device_number", 0444,
 				   qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.raw_device_num);
 		fallthrough;
 	case SOCINFO_VERSION(0, 11):
+		num_pmics = le32_to_cpu(info->num_pmics);
+		pmic_array_offset = le32_to_cpu(info->pmic_array_offset);
+		if (pmic_array_offset + 2 * num_pmics * sizeof(u32) <= info_size)
+			DEBUGFS_ADD(info, pmic_model_array);
+		fallthrough;
 	case SOCINFO_VERSION(0, 10):
 	case SOCINFO_VERSION(0, 9):
 		qcom_socinfo->info.foundry_id = __le32_to_cpu(info->foundry_id);
 
-		debugfs_create_u32("foundry_id", 0400, qcom_socinfo->dbg_root,
+		debugfs_create_u32("foundry_id", 0444, qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.foundry_id);
 		fallthrough;
 	case SOCINFO_VERSION(0, 8):
···
 		qcom_socinfo->info.hw_plat_subtype =
 			__le32_to_cpu(info->hw_plat_subtype);
 
-		debugfs_create_u32("hardware_platform_subtype", 0400,
+		debugfs_create_u32("hardware_platform_subtype", 0444,
 				   qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.hw_plat_subtype);
 		fallthrough;
···
 		qcom_socinfo->info.accessory_chip =
 			__le32_to_cpu(info->accessory_chip);
 
-		debugfs_create_u32("accessory_chip", 0400,
+		debugfs_create_u32("accessory_chip", 0444,
 				   qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.accessory_chip);
 		fallthrough;
 	case SOCINFO_VERSION(0, 4):
 		qcom_socinfo->info.plat_ver = __le32_to_cpu(info->plat_ver);
 
-		debugfs_create_u32("platform_version", 0400,
+		debugfs_create_u32("platform_version", 0444,
 				   qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.plat_ver);
 		fallthrough;
 	case SOCINFO_VERSION(0, 3):
 		qcom_socinfo->info.hw_plat = __le32_to_cpu(info->hw_plat);
 
-		debugfs_create_u32("hardware_platform", 0400,
+		debugfs_create_u32("hardware_platform", 0444,
 				   qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.hw_plat);
 		fallthrough;
 	case SOCINFO_VERSION(0, 2):
 		qcom_socinfo->info.raw_ver  = __le32_to_cpu(info->raw_ver);
 
-		debugfs_create_u32("raw_version", 0400, qcom_socinfo->dbg_root,
+		debugfs_create_u32("raw_version", 0444, qcom_socinfo->dbg_root,
 				   &qcom_socinfo->info.raw_ver);
 		fallthrough;
 	case SOCINFO_VERSION(0, 1):
···
 
 		dentry = debugfs_create_dir(socinfo_image_names[i],
 					    qcom_socinfo->dbg_root);
-		debugfs_create_file("name", 0400, dentry, &versions[i],
+		debugfs_create_file("name", 0444, dentry, &versions[i],
 				    &qcom_image_name_ops);
-		debugfs_create_file("variant", 0400, dentry, &versions[i],
+		debugfs_create_file("variant", 0444, dentry, &versions[i],
 				    &qcom_image_variant_ops);
-		debugfs_create_file("oem", 0400, dentry, &versions[i],
+		debugfs_create_file("oem", 0444, dentry, &versions[i],
 				    &qcom_image_oem_ops);
 	}
 }
···
 }
 #else
 static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
-				 struct socinfo *info)
+				 struct socinfo *info, size_t info_size)
 {
 }
 static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo) {  }
···
 	if (IS_ERR(qs->soc_dev))
 		return PTR_ERR(qs->soc_dev);
 
-	socinfo_debugfs_init(qs, info);
+	socinfo_debugfs_init(qs, info, item_size);
 
 	/* Feed the soc specific unique data into entropy pool */
 	add_device_randomness(info, item_size);

drivers/soc/sunxi/sunxi_sram.c

···
 EXPORT_SYMBOL(sunxi_sram_release);
 
 struct sunxi_sramc_variant {
-	bool has_emac_clock;
+	int num_emac_clocks;
 };
 
 static const struct sunxi_sramc_variant sun4i_a10_sramc_variant = {
···
 };
 
 static const struct sunxi_sramc_variant sun8i_h3_sramc_variant = {
-	.has_emac_clock = true,
+	.num_emac_clocks = 1,
 };
 
 static const struct sunxi_sramc_variant sun50i_a64_sramc_variant = {
-	.has_emac_clock = true,
+	.num_emac_clocks = 1,
+};
+
+static const struct sunxi_sramc_variant sun50i_h616_sramc_variant = {
+	.num_emac_clocks = 2,
 };
 
 #define SUNXI_SRAM_EMAC_CLOCK_REG	0x30
 static bool sunxi_sram_regmap_accessible_reg(struct device *dev,
 					     unsigned int reg)
 {
-	if (reg == SUNXI_SRAM_EMAC_CLOCK_REG)
-		return true;
-	return false;
+	const struct sunxi_sramc_variant *variant;
+
+	variant = of_device_get_match_data(dev);
+
+	if (reg < SUNXI_SRAM_EMAC_CLOCK_REG)
+		return false;
+	if (reg > SUNXI_SRAM_EMAC_CLOCK_REG + variant->num_emac_clocks * 4)
+		return false;
+
+	return true;
 }
 
 static struct regmap_config sunxi_sram_emac_clock_regmap = {
···
 	.val_bits       = 32,
 	.reg_stride     = 4,
 	/* last defined register */
-	.max_register   = SUNXI_SRAM_EMAC_CLOCK_REG,
+	.max_register   = SUNXI_SRAM_EMAC_CLOCK_REG + 4,
 	/* other devices have no business accessing other registers */
 	.readable_reg	= sunxi_sram_regmap_accessible_reg,
 	.writeable_reg	= sunxi_sram_regmap_accessible_reg,
···
 	if (!d)
 		return -ENOMEM;
 
-	if (variant->has_emac_clock) {
+	if (variant->num_emac_clocks > 0) {
 		emac_clock = devm_regmap_init_mmio(&pdev->dev, base,
 						   &sunxi_sram_emac_clock_regmap);
 
···
 	{
 		.compatible = "allwinner,sun50i-h5-system-control",
 		.data = &sun50i_a64_sramc_variant,
+	},
+	{
+		.compatible = "allwinner,sun50i-h616-system-control",
+		.data = &sun50i_h616_sramc_variant,
 	},
 	{ },
 };

drivers/soc/ti/k3-ringacc.c

···
 #include <linux/io.h>
 #include <linux/init.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/sys_soc.h>
 #include <linux/dma/ti-cppi5.h>
···
 static int k3_ringacc_probe(struct platform_device *pdev)
 {
 	const struct ringacc_match_data *match_data;
-	const struct of_device_id *match;
 	struct device *dev = &pdev->dev;
 	struct k3_ringacc *ringacc;
 	int ret;
 
-	match = of_match_node(k3_ringacc_of_match, dev->of_node);
-	if (!match)
+	match_data = of_device_get_match_data(&pdev->dev);
+	if (!match_data)
 		return -ENODEV;
-	match_data = match->data;
 
 	ringacc = devm_kzalloc(dev, sizeof(*ringacc), GFP_KERNEL);
 	if (!ringacc)

drivers/soc/ti/knav_dma.c

···
 	for_each_child_of_node(node, child) {
 		ret = dma_init(node, child);
 		if (ret) {
+			of_node_put(child);
 			dev_err(&pdev->dev, "init failed with %d\n", ret);
 			break;
 		}

drivers/soc/ti/knav_qmss_queue.c

···
 	for_each_child_of_node(regions, child) {
 		region = devm_kzalloc(dev, sizeof(*region), GFP_KERNEL);
 		if (!region) {
+			of_node_put(child);
 			dev_err(dev, "out of memory allocating region\n");
 			return -ENOMEM;
 		}
···
 	for_each_child_of_node(qmgrs, child) {
 		qmgr = devm_kzalloc(dev, sizeof(*qmgr), GFP_KERNEL);
 		if (!qmgr) {
+			of_node_put(child);
 			dev_err(dev, "out of memory allocating qmgr\n");
 			return -ENOMEM;
 		}
···
 	for_each_child_of_node(pdsps, child) {
 		pdsp = devm_kzalloc(dev, sizeof(*pdsp), GFP_KERNEL);
 		if (!pdsp) {
+			of_node_put(child);
 			dev_err(dev, "out of memory allocating pdsp\n");
 			return -ENOMEM;
 		}

drivers/soc/ti/pm33xx.c

···
 
 	ret = am33xx_push_sram_idle();
 	if (ret)
-		goto err_free_sram;
+		goto err_unsetup_rtc;
 
 	am33xx_pm_set_ipc_ops();
 
···
 err_pm_runtime_disable:
 	pm_runtime_disable(dev);
 	wkup_m3_ipc_put(m3_ipc);
+err_unsetup_rtc:
+	iounmap(rtc_base_virt);
+	clk_put(rtc_fck);
 err_free_sram:
 	am33xx_pm_free_sram();
 	pm33xx_dev = NULL;

drivers/soc/ti/pruss.c

···
 	.reg_stride = 4,
 };
 
+static int pruss_cfg_of_init(struct device *dev, struct pruss *pruss)
+{
+	struct device_node *np = dev_of_node(dev);
+	struct device_node *child;
+	struct resource res;
+	int ret;
+
+	child = of_get_child_by_name(np, "cfg");
+	if (!child) {
+		dev_err(dev, "%pOF is missing its 'cfg' node\n", child);
+		return -ENODEV;
+	}
+
+	if (of_address_to_resource(child, 0, &res)) {
+		ret = -ENOMEM;
+		goto node_put;
+	}
+
+	pruss->cfg_base = devm_ioremap(dev, res.start, resource_size(&res));
+	if (!pruss->cfg_base) {
+		ret = -ENOMEM;
+		goto node_put;
+	}
+
+	regmap_conf.name = kasprintf(GFP_KERNEL, "%pOFn@%llx", child,
+				     (u64)res.start);
+	regmap_conf.max_register = resource_size(&res) - 4;
+
+	pruss->cfg_regmap = devm_regmap_init_mmio(dev, pruss->cfg_base,
+						  &regmap_conf);
+	kfree(regmap_conf.name);
+	if (IS_ERR(pruss->cfg_regmap)) {
+		dev_err(dev, "regmap_init_mmio failed for cfg, ret = %ld\n",
+			PTR_ERR(pruss->cfg_regmap));
+		ret = PTR_ERR(pruss->cfg_regmap);
+		goto node_put;
+	}
+
+	ret = pruss_clk_init(pruss, child);
+	if (ret)
+		dev_err(dev, "pruss_clk_init failed, ret = %d\n", ret);
+
+node_put:
+	of_node_put(child);
+	return ret;
+}
+
 static int pruss_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
···
 		goto rpm_disable;
 	}
 
-	child = of_get_child_by_name(np, "cfg");
-	if (!child) {
-		dev_err(dev, "%pOF is missing its 'cfg' node\n", child);
-		ret = -ENODEV;
+	ret = pruss_cfg_of_init(dev, pruss);
+	if (ret < 0)
 		goto rpm_put;
-	}
-
-	if (of_address_to_resource(child, 0, &res)) {
-		ret = -ENOMEM;
-		goto node_put;
-	}
-
-	pruss->cfg_base = devm_ioremap(dev, res.start, resource_size(&res));
-	if (!pruss->cfg_base) {
-		ret = -ENOMEM;
-		goto node_put;
-	}
-
-	regmap_conf.name = kasprintf(GFP_KERNEL, "%pOFn@%llx", child,
-				     (u64)res.start);
-	regmap_conf.max_register = resource_size(&res) - 4;
-
-	pruss->cfg_regmap = devm_regmap_init_mmio(dev, pruss->cfg_base,
-						  &regmap_conf);
-	kfree(regmap_conf.name);
-	if (IS_ERR(pruss->cfg_regmap)) {
-		dev_err(dev, "regmap_init_mmio failed for cfg, ret = %ld\n",
-			PTR_ERR(pruss->cfg_regmap));
-		ret = PTR_ERR(pruss->cfg_regmap);
-		goto node_put;
-	}
-
-	ret = pruss_clk_init(pruss, child);
-	if (ret) {
-		dev_err(dev, "failed to setup coreclk-mux\n");
-		goto node_put;
-	}
 
 	ret = devm_of_platform_populate(dev);
 	if (ret) {
 		dev_err(dev, "failed to register child devices\n");
-		goto node_put;
+		goto rpm_put;
 	}
-
-	of_node_put(child);
 
 	return 0;
 
-node_put:
-	of_node_put(child);
 rpm_put:
 	pm_runtime_put_sync(dev);
 rpm_disable:

drivers/tee/optee/call.c

···
 			 */
 			optee_cq_wait_for_completion(&optee->call_queue, &w);
 		} else if (OPTEE_SMC_RETURN_IS_RPC(res.a0)) {
-			if (need_resched())
-				cond_resched();
+			cond_resched();
 			param.a0 = res.a0;
 			param.a1 = res.a1;
 			param.a2 = res.a2;

drivers/tee/optee/optee_msg.h

···
 /* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */
 /*
- * Copyright (c) 2015-2019, Linaro Limited
+ * Copyright (c) 2015-2021, Linaro Limited
  */
 #ifndef _OPTEE_MSG_H
 #define _OPTEE_MSG_H
···
  * This file defines the OP-TEE message protocol used to communicate
  * with an instance of OP-TEE running in secure world.
  *
- * This file is divided into three sections.
+ * This file is divided into two sections.
  * 1. Formatting of messages.
  * 2. Requests from normal world
- * 3. Requests from secure world, Remote Procedure Call (RPC), handled by
- *    tee-supplicant.
  */
 
 /*****************************************************************************
···
  * Every entry in buffer should point to a 4k page beginning (12 least
  * significant bits must be equal to zero).
  *
- * 12 least significant bints of optee_msg_param.u.tmem.buf_ptr should hold page
- * offset of the user buffer.
+ * 12 least significant bits of optee_msg_param.u.tmem.buf_ptr should hold
+ * page offset of user buffer.
  *
  * So, entries should be placed like members of this structure:
  *
···
  * @params: the parameters supplied to the OS Command
  *
  * All normal calls to Trusted OS uses this struct. If cmd requires further
- * information than what these field holds it can be passed as a parameter
+ * information than what these fields hold it can be passed as a parameter
  * tagged as meta (setting the OPTEE_MSG_ATTR_META bit in corresponding
- * attrs field). All parameters tagged as meta has to come first.
- *
- * Temp memref parameters can be fragmented if supported by the Trusted OS
- * (when optee_smc.h is bearer of this protocol this is indicated with
- * OPTEE_SMC_SEC_CAP_UNREGISTERED_SHM). If a logical memref parameter is
- * fragmented then has all but the last fragment the
- * OPTEE_MSG_ATTR_FRAGMENT bit set in attrs. Even if a memref is fragmented
- * it will still be presented as a single logical memref to the Trusted
- * Application.
+ * attrs field). All parameters tagged as meta have to come first.
  */
 struct optee_msg_arg {
 	u32 cmd;
···
 	u32 num_params;
 
 	/* num_params tells the actual number of element in params */
-	struct optee_msg_param params[0];
+	struct optee_msg_param params[];
 };
 
 /**
···
  * OPTEE_MSG_CMD_REGISTER_SHM registers a shared memory reference. The
  * information is passed as:
  * [in] param[0].attr			OPTEE_MSG_ATTR_TYPE_TMEM_INPUT
- *					[| OPTEE_MSG_ATTR_FRAGMENT]
+ *					[| OPTEE_MSG_ATTR_NONCONTIG]
  * [in] param[0].u.tmem.buf_ptr		physical address (of first fragment)
  * [in] param[0].u.tmem.size		size (of first fragment)
  * [in] param[0].u.tmem.shm_ref		holds shared memory reference
- * ...
- * The shared memory can optionally be fragmented, temp memrefs can follow
- * each other with all but the last with the OPTEE_MSG_ATTR_FRAGMENT bit set.
  *
- * OPTEE_MSG_CMD_UNREGISTER_SHM unregisteres a previously registered shared
+ * OPTEE_MSG_CMD_UNREGISTER_SHM unregisters a previously registered shared
  * memory reference. The information is passed as:
  * [in] param[0].attr			OPTEE_MSG_ATTR_TYPE_RMEM_INPUT
  * [in] param[0].u.rmem.shm_ref		holds shared memory reference
···
 #define OPTEE_MSG_CMD_REGISTER_SHM	4
 #define OPTEE_MSG_CMD_UNREGISTER_SHM	5
 #define OPTEE_MSG_FUNCID_CALL_WITH_ARG	0x0004
-
-/*****************************************************************************
- * Part 3 - Requests from secure world, RPC
- *****************************************************************************/
-
-/*
- * All RPC is done with a struct optee_msg_arg as bearer of information,
- * struct optee_msg_arg::arg holds values defined by OPTEE_MSG_RPC_CMD_* below
- *
- * RPC communication with tee-supplicant is reversed compared to normal
- * client communication desribed above. The supplicant receives requests
- * and sends responses.
- */
-
-/*
- * Load a TA into memory, defined in tee-supplicant
- */
-#define OPTEE_MSG_RPC_CMD_LOAD_TA	0
-
-/*
- * Reserved
- */
-#define OPTEE_MSG_RPC_CMD_RPMB		1
-
-/*
- * File system access, defined in tee-supplicant
- */
-#define OPTEE_MSG_RPC_CMD_FS		2
-
-/*
- * Get time
- *
- * Returns number of seconds and nano seconds since the Epoch,
- * 1970-01-01 00:00:00 +0000 (UTC).
- *
- * [out] param[0].u.value.a	Number of seconds
- * [out] param[0].u.value.b	Number of nano seconds.
- */
-#define OPTEE_MSG_RPC_CMD_GET_TIME	3
-
-/*
- * Wait queue primitive, helper for secure world to implement a wait queue.
- *
- * If secure world need to wait for a secure world mutex it issues a sleep
- * request instead of spinning in secure world. Conversely is a wakeup
- * request issued when a secure world mutex with a thread waiting thread is
- * unlocked.
- *
- * Waiting on a key
- * [in] param[0].u.value.a OPTEE_MSG_RPC_WAIT_QUEUE_SLEEP
- * [in] param[0].u.value.b wait key
- *
- * Waking up a key
- * [in] param[0].u.value.a OPTEE_MSG_RPC_WAIT_QUEUE_WAKEUP
- * [in] param[0].u.value.b wakeup key
- */
-#define OPTEE_MSG_RPC_CMD_WAIT_QUEUE	4
-#define OPTEE_MSG_RPC_WAIT_QUEUE_SLEEP	0
-#define OPTEE_MSG_RPC_WAIT_QUEUE_WAKEUP	1
-
-/*
- * Suspend execution
- *
- * [in] param[0].value	.a number of milliseconds to suspend
- */
-#define OPTEE_MSG_RPC_CMD_SUSPEND	5
-
-/*
- * Allocate a piece of shared memory
- *
- * Shared memory can optionally be fragmented, to support that additional
- * spare param entries are allocated to make room for eventual fragments.
- * The spare param entries has .attr = OPTEE_MSG_ATTR_TYPE_NONE when
- * unused. All returned temp memrefs except the last should have the
- * OPTEE_MSG_ATTR_FRAGMENT bit set in the attr field.
- *
- * [in]  param[0].u.value.a		type of memory one of
- *					OPTEE_MSG_RPC_SHM_TYPE_* below
- * [in]  param[0].u.value.b		requested size
- * [in]  param[0].u.value.c		required alignment
- *
- * [out] param[0].u.tmem.buf_ptr	physical address (of first fragment)
- * [out] param[0].u.tmem.size		size (of first fragment)
- * [out] param[0].u.tmem.shm_ref	shared memory reference
- * ...
- * [out] param[n].u.tmem.buf_ptr	physical address
- * [out] param[n].u.tmem.size		size
- * [out] param[n].u.tmem.shm_ref	shared memory reference (same value
- *					as in param[n-1].u.tmem.shm_ref)
- */
-#define OPTEE_MSG_RPC_CMD_SHM_ALLOC	6
-/* Memory that can be shared with a non-secure user space application */
-#define OPTEE_MSG_RPC_SHM_TYPE_APPL	0
-/* Memory only shared with non-secure kernel */
-#define OPTEE_MSG_RPC_SHM_TYPE_KERNEL	1
-
-/*
- * Free shared memory previously allocated with OPTEE_MSG_RPC_CMD_SHM_ALLOC
- *
- * [in]  param[0].u.value.a		type of memory one of
- *					OPTEE_MSG_RPC_SHM_TYPE_* above
- * [in]  param[0].u.value.b		value of shared memory reference
- *					returned in param[0].u.tmem.shm_ref
- *					above
- */
-#define OPTEE_MSG_RPC_CMD_SHM_FREE	7
-
-/*
- * Access a device on an i2c bus
- *
- * [in]  param[0].u.value.a		mode: RD(0), WR(1)
- * [in]  param[0].u.value.b		i2c adapter
- * [in]  param[0].u.value.c		i2c chip
- *
- * [in]  param[1].u.value.a		i2c control flags
- *
- * [in/out] memref[2]			buffer to exchange the transfer data
- *					with the secure world
- *
- * [out]  param[3].u.value.a		bytes transferred by the driver
- */
-#define OPTEE_MSG_RPC_CMD_I2C_TRANSFER 21
-/* I2C master transfer modes */
-#define OPTEE_MSG_RPC_CMD_I2C_TRANSFER_RD 0
-#define OPTEE_MSG_RPC_CMD_I2C_TRANSFER_WR 1
-/* I2C master control flags */
-#define OPTEE_MSG_RPC_CMD_I2C_FLAGS_TEN_BIT  BIT(0)
 
 #endif /* _OPTEE_MSG_H */

drivers/tee/optee/optee_rpc_cmd.h

···
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (c) 2016-2021, Linaro Limited
+ */
+
+#ifndef __OPTEE_RPC_CMD_H
+#define __OPTEE_RPC_CMD_H
+
+/*
+ * All RPC is done with a struct optee_msg_arg as bearer of information,
+ * struct optee_msg_arg::arg holds values defined by OPTEE_RPC_CMD_* below.
+ * Only the commands handled by the kernel driver are defined here.
+ *
+ * RPC communication with tee-supplicant is reversed compared to normal
+ * client communication described above. The supplicant receives requests
+ * and sends responses.
+ */
+
+/*
+ * Get time
+ *
+ * Returns number of seconds and nano seconds since the Epoch,
+ * 1970-01-01 00:00:00 +0000 (UTC).
+ *
+ * [out]    value[0].a	    Number of seconds
+ * [out]    value[0].b	    Number of nano seconds.
+ */
+#define OPTEE_RPC_CMD_GET_TIME		3
+
+/*
+ * Wait queue primitive, helper for secure world to implement a wait queue.
+ *
+ * If secure world needs to wait for a secure world mutex it issues a sleep
+ * request instead of spinning in secure world. Conversely is a wakeup
+ * request issued when a secure world mutex with a thread waiting thread is
+ * unlocked.
+ *
+ * Waiting on a key
+ * [in]    value[0].a	    OPTEE_RPC_WAIT_QUEUE_SLEEP
+ * [in]    value[0].b	    Wait key
+ *
+ * Waking up a key
+ * [in]    value[0].a	    OPTEE_RPC_WAIT_QUEUE_WAKEUP
+ * [in]    value[0].b	    Wakeup key
+ */
+#define OPTEE_RPC_CMD_WAIT_QUEUE	4
+#define OPTEE_RPC_WAIT_QUEUE_SLEEP	0
+#define OPTEE_RPC_WAIT_QUEUE_WAKEUP	1
+
+/*
+ * Suspend execution
+ *
+ * [in]    value[0].a	Number of milliseconds to suspend
+ */
+#define OPTEE_RPC_CMD_SUSPEND		5
+
+/*
+ * Allocate a piece of shared memory
+ *
+ * [in]    value[0].a	    Type of memory one of
+ *			    OPTEE_RPC_SHM_TYPE_* below
+ * [in]    value[0].b	    Requested size
+ * [in]    value[0].c	    Required alignment
+ * [out]   memref[0]	    Buffer
+ */
+#define OPTEE_RPC_CMD_SHM_ALLOC		6
+/* Memory that can be shared with a non-secure user space application */
+#define OPTEE_RPC_SHM_TYPE_APPL		0
+/* Memory only shared with non-secure kernel */
+#define OPTEE_RPC_SHM_TYPE_KERNEL	1
+
+/*
+ * Free shared memory previously allocated with OPTEE_RPC_CMD_SHM_ALLOC
+ *
+ * [in]     value[0].a	    Type of memory one of
+ *			    OPTEE_RPC_SHM_TYPE_* above
+ * [in]     value[0].b	    Value of shared memory reference or cookie
+ */
+#define OPTEE_RPC_CMD_SHM_FREE		7
+
+/*
+ * Issue master requests (read and write operations) to an I2C chip.
+ *
+ * [in]     value[0].a	    Transfer mode (OPTEE_RPC_I2C_TRANSFER_*)
+ * [in]     value[0].b	    The I2C bus (a.k.a adapter).
+ *				16 bit field.
+ * [in]     value[0].c	    The I2C chip (a.k.a address).
+ *				16 bit field (either 7 or 10 bit effective).
+ * [in]     value[1].a	    The I2C master control flags (ie, 10 bit address).
+ *				16 bit field.
+ * [in/out] memref[2]	    Buffer used for data transfers.
+ * [out]    value[3].a	    Number of bytes transferred by the REE.
+ */
+#define OPTEE_RPC_CMD_I2C_TRANSFER	21
+
+/* I2C master transfer modes */
+#define OPTEE_RPC_I2C_TRANSFER_RD	0
+#define OPTEE_RPC_I2C_TRANSFER_WR	1
+
+/* I2C master control flags */
+#define OPTEE_RPC_I2C_FLAGS_TEN_BIT	BIT(0)
+
+#endif /*__OPTEE_RPC_CMD_H*/

drivers/tee/optee/optee_smc.h

···
 /* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */
 /*
- * Copyright (c) 2015-2019, Linaro Limited
+ * Copyright (c) 2015-2021, Linaro Limited
  */
 #ifndef OPTEE_SMC_H
 #define OPTEE_SMC_H
···
 /*
  * Function specified by SMC Calling convention
  *
- * Return one of the following UIDs if using API specified in this file
- * without further extentions:
- * 65cb6b93-af0c-4617-8ed6-644a8d1140f8
- * see also OPTEE_SMC_UID_* in optee_msg.h
+ * Return the following UID if using API specified in this file
+ * without further extensions:
+ * 384fb3e0-e7f8-11e3-af63-0002a5d5c51b.
+ * see also OPTEE_MSG_UID_* in optee_msg.h
  */
 #define OPTEE_SMC_FUNCID_CALLS_UID OPTEE_MSG_FUNCID_CALLS_UID
 #define OPTEE_SMC_CALLS_UID \
···
 /*
  * Function specified by SMC Calling convention
  *
- * Returns 2.0 if using API specified in this file without further extentions.
+ * Returns 2.0 if using API specified in this file without further extensions.
  * see also OPTEE_MSG_REVISION_* in optee_msg.h
  */
 #define OPTEE_SMC_FUNCID_CALLS_REVISION OPTEE_MSG_FUNCID_CALLS_REVISION
···
  *
  * Call register usage:
  * a0	SMC Function ID, OPTEE_SMC*CALL_WITH_ARG
- * a1	Upper 32bit of a 64bit physical pointer to a struct optee_msg_arg
- * a2	Lower 32bit of a 64bit physical pointer to a struct optee_msg_arg
+ * a1	Upper 32 bits of a 64-bit physical pointer to a struct optee_msg_arg
+ * a2	Lower 32 bits of a 64-bit physical pointer to a struct optee_msg_arg
  * a3	Cache settings, not used if physical pointer is in a predefined shared
  *	memory area else per OPTEE_SMC_SHM_*
  * a4-6	Not used
···
  *					optee_msg_arg.
  * OPTEE_SMC_RETURN_ETHREAD_LIMIT	Number of Trusted OS threads exceeded,
  *					try again later.
- * OPTEE_SMC_RETURN_EBADADDR		Bad physcial pointer to struct
+ * OPTEE_SMC_RETURN_EBADADDR		Bad physical pointer to struct
  *					optee_msg_arg.
  * OPTEE_SMC_RETURN_EBADCMD		Bad/unknown cmd in struct optee_msg_arg
  * OPTEE_SMC_RETURN_IS_RPC()		Call suspended by RPC call to normal
···
  * secure world accepts command buffers located in any parts of non-secure RAM
  */
 #define OPTEE_SMC_SEC_CAP_DYNAMIC_SHM		BIT(2)
-
-/* Secure world supports Shared Memory with a NULL buffer reference */
+/* Secure world is built with virtualization support */
+#define OPTEE_SMC_SEC_CAP_VIRTUALIZATION	BIT(3)
+/* Secure world supports Shared Memory with a NULL reference */
 #define OPTEE_SMC_SEC_CAP_MEMREF_NULL		BIT(4)
 
 #define OPTEE_SMC_FUNCID_EXCHANGE_CAPABILITIES	9
···
  *
  * Normal return register usage:
  * a0	OPTEE_SMC_RETURN_OK
- * a1	Upper 32bit of a 64bit Shared memory cookie
- * a2	Lower 32bit of a 64bit Shared memory cookie
+ * a1	Upper 32 bits of a 64-bit Shared memory cookie
+ * a2	Lower 32 bits of a 64-bit Shared memory cookie
  * a3-7	Preserved
  *
  * Cache empty return register usage:
···
 #define OPTEE_SMC_FUNCID_ENABLE_SHM_CACHE	11
 #define OPTEE_SMC_ENABLE_SHM_CACHE \
 	OPTEE_SMC_FAST_CALL_VAL(OPTEE_SMC_FUNCID_ENABLE_SHM_CACHE)
+
+/*
+ * Query OP-TEE about number of supported threads
+ *
+ * Normal World OS or Hypervisor issues this call to find out how many
+ * threads OP-TEE supports. That is how many standard calls can be issued
+ * in parallel before OP-TEE will return OPTEE_SMC_RETURN_ETHREAD_LIMIT.
+ *
+ * Call requests usage:
+ * a0	SMC Function ID, OPTEE_SMC_GET_THREAD_COUNT
+ * a1-6 Not used
+ * a7	Hypervisor Client ID register
+ *
+ * Normal return register usage:
+ * a0	OPTEE_SMC_RETURN_OK
+ * a1	Number of threads
+ * a2-7 Preserved
+ *
+ * Error return:
+ * a0	OPTEE_SMC_RETURN_UNKNOWN_FUNCTION   Requested call is not implemented
+ * a1-7	Preserved
+ */
+#define OPTEE_SMC_FUNCID_GET_THREAD_COUNT	15
+#define OPTEE_SMC_GET_THREAD_COUNT \
+	OPTEE_SMC_FAST_CALL_VAL(OPTEE_SMC_FUNCID_GET_THREAD_COUNT)
 
 /*
  * Resume from RPC (for example after processing a foreign interrupt)
···
  *
  * "Return" register usage:
  * a0	SMC Function ID, OPTEE_SMC_CALL_RETURN_FROM_RPC.
- * a1	Upper 32bits of 64bit physical pointer to allocated
+ * a1	Upper 32 bits of 64-bit physical pointer to allocated
  *	memory, (a1 == 0 && a2 == 0) if size was 0 or if memory can't
  *	be allocated.
- * a2	Lower 32bits of 64bit physical pointer to allocated
+ * a2	Lower 32 bits of 64-bit physical pointer to allocated
  *	memory, (a1 == 0 && a2 == 0) if size was 0 or if memory can't
  *	be allocated
  * a3	Preserved
- * a4	Upper 32bits of 64bit Shared memory cookie used when freeing
+ * a4	Upper 32 bits of 64-bit Shared memory cookie used when freeing
  *	the memory or doing an RPC
- * a5	Lower 32bits of 64bit Shared memory cookie used when freeing
+ * a5	Lower 32 bits of 64-bit Shared memory cookie used when freeing
  *	the memory or doing an RPC
  * a6-7	Preserved
  */
···
  *
  * "Call" register usage:
  * a0	This value, OPTEE_SMC_RETURN_RPC_FREE
- * a1	Upper 32bits of 64bit shared memory cookie belonging to this
+ * a1	Upper 32 bits of 64-bit shared memory cookie belonging to this
  *	argument memory
- * a2	Lower 32bits of 64bit shared memory cookie belonging to this
+ * a2	Lower 32 bits of 64-bit shared memory cookie belonging to this
  *	argument memory
  * a3-7	Resume information, must be preserved
  *
···
 	OPTEE_SMC_RPC_VAL(OPTEE_SMC_RPC_FUNC_FREE)
 
 /*
- * Deliver foreign interrupt to normal world.
+ * Deliver a foreign interrupt in normal world.
  *
  * "Call" register usage:
  * a0	OPTEE_SMC_RETURN_RPC_FOREIGN_INTR
···
  * a0	SMC Function ID, OPTEE_SMC_CALL_RETURN_FROM_RPC.
  * a1-7	Preserved
  */
-#define OPTEE_SMC_RPC_FUNC_FOREIGN_INTR		4
+#define OPTEE_SMC_RPC_FUNC_FOREIGN_INTR	4
 #define OPTEE_SMC_RETURN_RPC_FOREIGN_INTR \
 	OPTEE_SMC_RPC_VAL(OPTEE_SMC_RPC_FUNC_FOREIGN_INTR)
 
···
  *
  * "Call" register usage:
  * a0	OPTEE_SMC_RETURN_RPC_CMD
- * a1	Upper 32bit of a 64bit Shared memory cookie holding a
+ * a1	Upper 32 bits of a 64-bit Shared memory cookie holding a
  *	struct optee_msg_arg, must be preserved, only the data should
  *	be updated
- * a2	Lower 32bit of a 64bit Shared memory cookie holding a
+ * a2	Lower 32 bits of a 64-bit Shared memory cookie holding a
  *	struct optee_msg_arg, must be preserved, only the data should
  *	be updated
  * a3-7	Resume information, must be preserved

drivers/tee/optee/rpc.c

···
 #include <linux/tee_drv.h>
 #include "optee_private.h"
 #include "optee_smc.h"
+#include "optee_rpc_cmd.h"
 
 struct wq_entry {
 	struct list_head link;
···
 static void handle_rpc_func_cmd_i2c_transfer(struct tee_context *ctx,
 					     struct optee_msg_arg *arg)
 {
-	struct i2c_client client = { 0 };
 	struct tee_param *params;
+	struct i2c_adapter *adapter;
+	struct i2c_msg msg = { };
 	size_t i;
 	int ret = -EOPNOTSUPP;
 	u8 attr[] = {
···
 			goto bad;
 	}
 
-	client.adapter = i2c_get_adapter(params[0].u.value.b);
-	if (!client.adapter)
+	adapter = i2c_get_adapter(params[0].u.value.b);
+	if (!adapter)
 		goto bad;
 
-	if (params[1].u.value.a & OPTEE_MSG_RPC_CMD_I2C_FLAGS_TEN_BIT) {
-		if (!i2c_check_functionality(client.adapter,
+	if (params[1].u.value.a & OPTEE_RPC_I2C_FLAGS_TEN_BIT) {
+		if (!i2c_check_functionality(adapter,
 					     I2C_FUNC_10BIT_ADDR)) {
-			i2c_put_adapter(client.adapter);
+			i2c_put_adapter(adapter);
 			goto bad;
 		}
 
-		client.flags = I2C_CLIENT_TEN;
+		msg.flags = I2C_M_TEN;
 	}
 
-	client.addr = params[0].u.value.c;
-	snprintf(client.name, I2C_NAME_SIZE, "i2c%d", client.adapter->nr);
+	msg.addr = params[0].u.value.c;
+	msg.buf  = params[2].u.memref.shm->kaddr;
+	msg.len  = params[2].u.memref.size;
 
 	switch (params[0].u.value.a) {
-	case OPTEE_MSG_RPC_CMD_I2C_TRANSFER_RD:
-		ret = i2c_master_recv(&client, params[2].u.memref.shm->kaddr,
-				      params[2].u.memref.size);
+	case OPTEE_RPC_I2C_TRANSFER_RD:
+		msg.flags |= I2C_M_RD;
 		break;
-	case OPTEE_MSG_RPC_CMD_I2C_TRANSFER_WR:
-		ret = i2c_master_send(&client, params[2].u.memref.shm->kaddr,
-				      params[2].u.memref.size);
+	case OPTEE_RPC_I2C_TRANSFER_WR:
 		break;
 	default:
-		i2c_put_adapter(client.adapter);
+		i2c_put_adapter(adapter);
 		goto bad;
 	}
+
+	ret = i2c_transfer(adapter, &msg, 1);
 
 	if (ret < 0) {
 		arg->ret = TEEC_ERROR_COMMUNICATION;
 	} else {
-		params[3].u.value.a = ret;
+		params[3].u.value.a = msg.len;
 		if (optee_to_msg_param(arg->params, arg->num_params, params))
 			arg->ret = TEEC_ERROR_BAD_PARAMETERS;
 		else
 			arg->ret = TEEC_SUCCESS;
 	}
 
-	i2c_put_adapter(client.adapter);
+	i2c_put_adapter(adapter);
 	kfree(params);
 	return;
 bad:
···
 		goto bad;
 
 	switch (arg->params[0].u.value.a) {
-	case OPTEE_MSG_RPC_WAIT_QUEUE_SLEEP:
+	case OPTEE_RPC_WAIT_QUEUE_SLEEP:
 		wq_sleep(&optee->wait_queue, arg->params[0].u.value.b);
 		break;
-	case OPTEE_MSG_RPC_WAIT_QUEUE_WAKEUP:
+	case OPTEE_RPC_WAIT_QUEUE_WAKEUP:
 		wq_wakeup(&optee->wait_queue, arg->params[0].u.value.b);
 		break;
 	default:
···
 	struct tee_shm *shm;
 
 	param.attr = TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_INOUT;
-	param.u.value.a = OPTEE_MSG_RPC_SHM_TYPE_APPL;
+	param.u.value.a = OPTEE_RPC_SHM_TYPE_APPL;
 	param.u.value.b = sz;
 	param.u.value.c = 0;
 
-	ret = optee_supp_thrd_req(ctx, OPTEE_MSG_RPC_CMD_SHM_ALLOC, 1, &param);
+	ret = optee_supp_thrd_req(ctx, OPTEE_RPC_CMD_SHM_ALLOC, 1, &param);
 	if (ret)
 		return ERR_PTR(-ENOMEM);
 
···
 
 	sz = arg->params[0].u.value.b;
 	switch (arg->params[0].u.value.a) {
-	case OPTEE_MSG_RPC_SHM_TYPE_APPL:
+	case OPTEE_RPC_SHM_TYPE_APPL:
 		shm = cmd_alloc_suppl(ctx, sz);
 		break;
-	case OPTEE_MSG_RPC_SHM_TYPE_KERNEL:
+	case OPTEE_RPC_SHM_TYPE_KERNEL:
 		shm = tee_shm_alloc(ctx, sz, TEE_SHM_MAPPED);
 		break;
 	default:
···
 	struct tee_param param;
 
 	param.attr = TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_INOUT;
-	param.u.value.a = OPTEE_MSG_RPC_SHM_TYPE_APPL;
+	param.u.value.a = OPTEE_RPC_SHM_TYPE_APPL;
 	param.u.value.b = tee_shm_get_id(shm);
 	param.u.value.c = 0;
 
···
 	 */
 	tee_shm_put(shm);
 
-	optee_supp_thrd_req(ctx, OPTEE_MSG_RPC_CMD_SHM_FREE, 1, &param);
+	optee_supp_thrd_req(ctx, OPTEE_RPC_CMD_SHM_FREE, 1, &param);
 }
 
 static void handle_rpc_func_cmd_shm_free(struct tee_context *ctx,
···
 
 	shm = (struct tee_shm *)(unsigned long)arg->params[0].u.value.b;
 	switch (arg->params[0].u.value.a) {
-	case OPTEE_MSG_RPC_SHM_TYPE_APPL:
+	case OPTEE_RPC_SHM_TYPE_APPL:
 		cmd_free_suppl(ctx, shm);
 		break;
-	case OPTEE_MSG_RPC_SHM_TYPE_KERNEL:
+	case OPTEE_RPC_SHM_TYPE_KERNEL:
 		tee_shm_free(shm);
 		break;
 	default:
···
 	}
 
 	switch (arg->cmd) {
-	case OPTEE_MSG_RPC_CMD_GET_TIME:
+	case OPTEE_RPC_CMD_GET_TIME:
 		handle_rpc_func_cmd_get_time(arg);
 		break;
-	case OPTEE_MSG_RPC_CMD_WAIT_QUEUE:
+	case OPTEE_RPC_CMD_WAIT_QUEUE:
 		handle_rpc_func_cmd_wq(optee, arg);
 		break;
-	case OPTEE_MSG_RPC_CMD_SUSPEND:
+	case OPTEE_RPC_CMD_SUSPEND:
 		handle_rpc_func_cmd_wait(arg);
 		break;
-	case OPTEE_MSG_RPC_CMD_SHM_ALLOC:
+	case OPTEE_RPC_CMD_SHM_ALLOC:
 		free_pages_list(call_ctx);
 		handle_rpc_func_cmd_shm_alloc(ctx, arg, call_ctx);
 		break;
-	case OPTEE_MSG_RPC_CMD_SHM_FREE:
+	case OPTEE_RPC_CMD_SHM_FREE:
 		handle_rpc_func_cmd_shm_free(ctx, arg);
 		break;
-	case OPTEE_MSG_RPC_CMD_I2C_TRANSFER:
+	case OPTEE_RPC_CMD_I2C_TRANSFER:
 		handle_rpc_func_cmd_i2c_transfer(ctx, arg);
 		break;
 	default:

include/dt-bindings/power/mt8167-power.h

···
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (c) 2020 MediaTek Inc.
+ */
+
+#ifndef _DT_BINDINGS_POWER_MT8167_POWER_H
+#define _DT_BINDINGS_POWER_MT8167_POWER_H
+
+#define MT8167_POWER_DOMAIN_MM		0
+#define MT8167_POWER_DOMAIN_VDEC	1
+#define MT8167_POWER_DOMAIN_ISP		2
+#define MT8167_POWER_DOMAIN_CONN	3
+#define MT8167_POWER_DOMAIN_MFG_ASYNC	4
+#define MT8167_POWER_DOMAIN_MFG_2D	5
+#define MT8167_POWER_DOMAIN_MFG		6
+
+#endif /* _DT_BINDINGS_POWER_MT8167_POWER_H */

include/dt-bindings/power/qcom-rpmpd.h

···
 #define MSM8976_VDDMX_AO	4
 #define MSM8976_VDDMX_VFL	5
 
+/* MSM8994 Power Domain Indexes */
+#define MSM8994_VDDCX		0
+#define MSM8994_VDDCX_AO	1
+#define MSM8994_VDDCX_VFC	2
+#define MSM8994_VDDMX		3
+#define MSM8994_VDDMX_AO	4
+#define MSM8994_VDDGFX		5
+#define MSM8994_VDDGFX_VFC	6
+
 /* MSM8996 Power Domain Indexes */
 #define MSM8996_VDDCX		0
 #define MSM8996_VDDCX_AO	1

include/dt-bindings/soc/bcm-pmb.h

···
+/* SPDX-License-Identifier: GPL-2.0-or-later OR MIT */
+
+#ifndef __DT_BINDINGS_SOC_BCM_PMB_H
+#define __DT_BINDINGS_SOC_BCM_PMB_H
+
+#define BCM_PMB_PCIE0				0x01
+#define BCM_PMB_PCIE1				0x02
+#define BCM_PMB_PCIE2				0x03
+#define BCM_PMB_HOST_USB			0x04
+
+#endif

include/linux/clk/tegra.h

···
 extern void tegra210_clk_emc_update_setting(u32 emc_src_value);
 
 struct clk;
+struct tegra_emc;
 
 typedef long (tegra20_clk_emc_round_cb)(unsigned long rate,
 					unsigned long min_rate,
···
 void tegra20_clk_set_emc_round_callback(tegra20_clk_emc_round_cb *round_cb,
 					void *cb_arg);
 int tegra20_clk_prepare_emc_mc_same_freq(struct clk *emc_clk, bool same);
+
+typedef int (tegra124_emc_prepare_timing_change_cb)(struct tegra_emc *emc,
+						    unsigned long rate);
+typedef void (tegra124_emc_complete_timing_change_cb)(struct tegra_emc *emc,
+						      unsigned long rate);
+void tegra124_clk_set_emc_callbacks(tegra124_emc_prepare_timing_change_cb *prep_cb,
+				    tegra124_emc_complete_timing_change_cb *complete_cb);
 
 struct tegra210_clk_emc_config {
 	unsigned long rate;

include/linux/mfd/axp20x.h

···
  *
  * This tells the axp20x core to remove the associated mfd devices
  */
-int axp20x_device_remove(struct axp20x_dev *axp20x);
+void axp20x_device_remove(struct axp20x_dev *axp20x);
 
 #endif /* __LINUX_MFD_AXP20X_H */

include/linux/reset.h

···
 }
 
 /**
+ * devm_reset_control_get_optional_exclusive_released - resource managed
+ *                                                      reset_control_get_optional_exclusive_released()
+ * @dev: device to be reset by the controller
+ * @id: reset line name
+ *
+ * Managed-and-optional variant of reset_control_get_exclusive_released(). For
+ * reset controllers returned from this function, reset_control_put() is called
+ * automatically on driver detach.
+ *
+ * See reset_control_get_exclusive_released() for more information.
+ */
+static inline struct reset_control *
+__must_check devm_reset_control_get_optional_exclusive_released(struct device *dev,
+								const char *id)
+{
+	return __devm_reset_control_get(dev, id, 0, false, true, false);
+}
+
+/**
  * devm_reset_control_get_shared - resource managed reset_control_get_shared()
  * @dev: device to be reset by the controller
  * @id: reset line name

include/linux/soc/brcmstb/brcmstb.h

···
 #ifndef __BRCMSTB_SOC_H
 #define __BRCMSTB_SOC_H
 
+#include <linux/kconfig.h>
+
 static inline u32 BRCM_ID(u32 reg)
 {
 	return reg >> 28 ? reg >> 16 : reg >> 8;
···
 	return reg & 0xff;
 }
 
+#if IS_ENABLED(CONFIG_SOC_BRCMSTB)
+
 /*
  * Helper functions for getting family or product id from the
  * SoC driver.
  */
 u32 brcmstb_get_family_id(void);
 u32 brcmstb_get_product_id(void);
+
+#else
+static inline u32 brcmstb_get_family_id(void)
+{
+	return 0;
+}
+
+static inline u32 brcmstb_get_product_id(void)
+{
+	return 0;
+}
+#endif
 
 #endif /* __BRCMSTB_SOC_H */

include/linux/soc/mediatek/infracfg.h

···
 #define MT8173_TOP_AXI_PROT_EN_MFG_M1		BIT(22)
 #define MT8173_TOP_AXI_PROT_EN_MFG_SNOOP_OUT	BIT(23)
 
+#define MT8167_TOP_AXI_PROT_EN_MM_EMI		BIT(1)
+#define MT8167_TOP_AXI_PROT_EN_MCU_MFG		BIT(2)
+#define MT8167_TOP_AXI_PROT_EN_CONN_EMI		BIT(4)
+#define MT8167_TOP_AXI_PROT_EN_MFG_EMI		BIT(5)
+#define MT8167_TOP_AXI_PROT_EN_CONN_MCU		BIT(8)
+#define MT8167_TOP_AXI_PROT_EN_MCU_CONN		BIT(9)
+#define MT8167_TOP_AXI_PROT_EN_MCU_MM		BIT(11)
+
 #define MT2701_TOP_AXI_PROT_EN_MM_M0		BIT(1)
 #define MT2701_TOP_AXI_PROT_EN_CONN_M		BIT(2)
 #define MT2701_TOP_AXI_PROT_EN_CONN_S		BIT(8)

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

···
 int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, cmdq_async_flush_cb cb,
 			 void *data);
 
-/**
- * cmdq_pkt_flush() - trigger CMDQ to execute the CMDQ packet
- * @pkt:	the CMDQ packet
- *
- * Return: 0 for success; else the error code is returned
- *
- * Trigger CMDQ to execute the CMDQ packet. Note that this is a
- * synchronous flush function. When the function returned, the recorded
- * commands have been done.
- */
-int cmdq_pkt_flush(struct cmdq_pkt *pkt);
-
 #endif	/* __MTK_CMDQ_H__ */

include/linux/soc/qcom/llcc-qcom.h

···
 #define LLCC_AUDHW       22
 #define LLCC_NPU         23
 #define LLCC_WLHW        24
+#define LLCC_CVP         28
 #define LLCC_MODPE       29
 #define LLCC_APTCM       30
 #define LLCC_WRCACHE     31
···
  * @bitmap: Bit map to track the active slice ids
  * @offsets: Pointer to the bank offsets array
  * @ecc_irq: interrupt for llcc cache error detection and reporting
+ * @major_version: Indicates the LLCC major version
  */
 struct llcc_drv_data {
 	struct regmap *regmap;
···
 	unsigned long *bitmap;
 	u32 *offsets;
 	int ecc_irq;
+	u32 major_version;
 };
 
 #if IS_ENABLED(CONFIG_QCOM_LLCC)

include/linux/sunxi-rsb.h

···
 struct sunxi_rsb_driver {
 	struct device_driver driver;
 	int (*probe)(struct sunxi_rsb_device *rdev);
-	int (*remove)(struct sunxi_rsb_device *rdev);
+	void (*remove)(struct sunxi_rsb_device *rdev);
 };
 
 static inline struct sunxi_rsb_driver *to_sunxi_rsb_driver(struct device_driver *d)

include/linux/tee_drv.h

···
  * @close_session:	close a session
  * @invoke_func:	invoke a trusted function
  * @cancel_req:		request cancel of an ongoing invoke or open
- * @supp_revc:		called for supplicant to get a command
+ * @supp_recv:		called for supplicant to get a command
  * @supp_send:		called for supplicant to send a response
  * @shm_register:	register shared memory buffer in TEE
  * @shm_unregister:	unregister shared memory buffer in TEE

include/soc/brcmstb/common.h

···
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright © 2014 NVIDIA Corporation
- * Copyright © 2015 Broadcom Corporation
- */
-
-#ifndef __SOC_BRCMSTB_COMMON_H__
-#define __SOC_BRCMSTB_COMMON_H__
-
-bool soc_is_brcmstb(void);
-
-#endif /* __SOC_BRCMSTB_COMMON_H__ */

include/soc/mediatek/smi.h

···
 #include <linux/bitops.h>
 #include <linux/device.h>
 
-#ifdef CONFIG_MTK_SMI
+#if IS_ENABLED(CONFIG_MTK_SMI)
 
 #define MTK_LARB_NR_MAX		16
 

include/soc/qcom/tcs.h

···
  *
  * @addr: the address of the resource slv_id:18:16 | offset:0:15
  * @data: the resource state request
- * @wait: wait for this request to be complete before sending the next
+ * @wait: ensure that this command is complete before returning.
+ *        Setting "wait" here only makes sense during rpmh_write_batch() for
+ *        active-only transfers, this is because:
+ *        rpmh_write() - Always waits.
+ *                       (DEFINE_RPMH_MSG_ONSTACK will set .wait_for_compl)
+ *        rpmh_write_async() - Never waits.
+ *                       (There's no request completion callback)
  */
 struct tcs_cmd {
 	u32 addr;
···
  *
  * @state:          state for the request.
  * @wait_for_compl: wait until we get a response from the h/w accelerator
+ *                  (same as setting cmd->wait for all commands in the request)
  * @num_cmds:       the number of @cmds in this request
  * @cmds:           an array of tcs_cmds
  */

include/soc/tegra/emc.h

···
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2014 NVIDIA Corporation. All rights reserved.
- */
-
-#ifndef __SOC_TEGRA_EMC_H__
-#define __SOC_TEGRA_EMC_H__
-
-struct tegra_emc;
-
-int tegra_emc_prepare_timing_change(struct tegra_emc *emc,
-				    unsigned long rate);
-void tegra_emc_complete_timing_change(struct tegra_emc *emc,
-				      unsigned long rate);
-
-#endif /* __SOC_TEGRA_EMC_H__ */

include/uapi/linux/tee.h

···
 };
 
 /**
- * TEE_IOC_SUPPL_SEND - Receive a request for a supplicant function
+ * TEE_IOC_SUPPL_SEND - Send a response to a received request
  *
  * Takes a struct tee_ioctl_buf_data which contains a struct
  * tee_iocl_supp_send_arg followed by any array of struct tee_param