dt-bindings: interrupt-controller: Add i.MX8qxp Display Controller interrupt controller

i.MX8qxp Display Controller has a built-in interrupt controller to support
Enable/Status/Preset/Clear interrupt bit.

Signed-off-by: Liu Ying <[e-mail]>
Reviewed-by: Rob Herring (Arm) <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

Documentation/devicetree/bindings/interrupt-controller/fsl,imx8qxp-dc-intc.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/fsl,imx8qxp-dc-intc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller interrupt controller
+
+description: |
+  The Display Controller has a built-in interrupt controller with the following
+  features for all relevant HW events:
+
+  * Enable bit (mask)
+  * Status bit (set by an HW event)
+  * Preset bit (can be used by SW to set status)
+  * Clear bit (used by SW to reset the status)
+
+  Each interrupt can be connected as IRQ (maskable) and/or NMI (non-maskable).
+  Alternatively the un-masked trigger signals for all HW events are provided,
+  allowing it to use a global interrupt controller instead.
+
+  Each interrupt can be protected against SW running in user mode. In that case,
+  only privileged AHB access can control the interrupt status.
+
+maintainers:
+  - Liu Ying <[e-mail]>
+
+properties:
+  compatible:
+    const: fsl,imx8qxp-dc-intc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 1
+
+  interrupts:
+    items:
+      - description: store9 shadow load interrupt(blit engine)
+      - description: store9 frame complete interrupt(blit engine)
+      - description: store9 sequence complete interrupt(blit engine)
+      - description:
+          extdst0 shadow load interrupt
+          (display controller, content stream 0)
+      - description:
+          extdst0 frame complete interrupt
+          (display controller, content stream 0)
+      - description:
+          extdst0 sequence complete interrupt
+          (display controller, content stream 0)
+      - description:
+          extdst4 shadow load interrupt
+          (display controller, safety stream 0)
+      - description:
+          extdst4 frame complete interrupt
+          (display controller, safety stream 0)
+      - description:
+          extdst4 sequence complete interrupt
+          (display controller, safety stream 0)
+      - description:
+          extdst1 shadow load interrupt
+          (display controller, content stream 1)
+      - description:
+          extdst1 frame complete interrupt
+          (display controller, content stream 1)
+      - description:
+          extdst1 sequence complete interrupt
+          (display controller, content stream 1)
+      - description:
+          extdst5 shadow load interrupt
+          (display controller, safety stream 1)
+      - description:
+          extdst5 frame complete interrupt
+          (display controller, safety stream 1)
+      - description:
+          extdst5 sequence complete interrupt
+          (display controller, safety stream 1)
+      - description:
+          disengcfg0 shadow load interrupt
+          (display controller, display stream 0)
+      - description:
+          disengcfg0 frame complete interrupt
+          (display controller, display stream 0)
+      - description:
+          disengcfg0 sequence complete interrupt
+          (display controller, display stream 0)
+      - description:
+          framegen0 programmable interrupt0
+          (display controller, display stream 0)
+      - description:
+          framegen0 programmable interrupt1
+          (display controller, display stream 0)
+      - description:
+          framegen0 programmable interrupt2
+          (display controller, display stream 0)
+      - description:
+          framegen0 programmable interrupt3
+          (display controller, display stream 0)
+      - description:
+          signature0 shadow load interrupt
+          (display controller, display stream 0)
+      - description:
+          signature0 measurement valid interrupt
+          (display controller, display stream 0)
+      - description:
+          signature0 error condition interrupt
+          (display controller, display stream 0)
+      - description:
+          disengcfg1 shadow load interrupt
+          (display controller, display stream 1)
+      - description:
+          disengcfg1 frame complete interrupt
+          (display controller, display stream 1)
+      - description:
+          disengcfg1 sequence complete interrupt
+          (display controller, display stream 1)
+      - description:
+          framegen1 programmable interrupt0
+          (display controller, display stream 1)
+      - description:
+          framegen1 programmable interrupt1
+          (display controller, display stream 1)
+      - description:
+          framegen1 programmable interrupt2
+          (display controller, display stream 1)
+      - description:
+          framegen1 programmable interrupt3
+          (display controller, display stream 1)
+      - description:
+          signature1 shadow load interrupt
+          (display controller, display stream 1)
+      - description:
+          signature1 measurement valid interrupt
+          (display controller, display stream 1)
+      - description:
+          signature1 error condition interrupt
+          (display controller, display stream 1)
+      - description: reserved
+      - description:
+          command sequencer error condition interrupt(command sequencer)
+      - description:
+          common control software interrupt0(common control)
+      - description:
+          common control software interrupt1(common control)
+      - description:
+          common control software interrupt2(common control)
+      - description:
+          common control software interrupt3(common control)
+      - description:
+          framegen0 synchronization status activated interrupt
+          (display controller, safety stream 0)
+      - description:
+          framegen0 synchronization status deactivated interrupt
+          (display controller, safety stream 0)
+      - description:
+          framegen0 synchronization status activated interrupt
+          (display controller, content stream 0)
+      - description:
+          framegen0 synchronization status deactivated interrupt
+          (display controller, content stream 0)
+      - description:
+          framegen1 synchronization status activated interrupt
+          (display controller, safety stream 1)
+      - description:
+          framegen1 synchronization status deactivated interrupt
+          (display controller, safety stream 1)
+      - description:
+          framegen1 synchronization status activated interrupt
+          (display controller, content stream 1)
+      - description:
+          framegen1 synchronization status deactivated interrupt
+          (display controller, content stream 1)
+    minItems: 49
+
+  interrupt-names:
+    items:
+      - const: store9_shdload
+      - const: store9_framecomplete
+      - const: store9_seqcomplete
+      - const: extdst0_shdload
+      - const: extdst0_framecomplete
+      - const: extdst0_seqcomplete
+      - const: extdst4_shdload
+      - const: extdst4_framecomplete
+      - const: extdst4_seqcomplete
+      - const: extdst1_shdload
+      - const: extdst1_framecomplete
+      - const: extdst1_seqcomplete
+      - const: extdst5_shdload
+      - const: extdst5_framecomplete
+      - const: extdst5_seqcomplete
+      - const: disengcfg_shdload0
+      - const: disengcfg_framecomplete0
+      - const: disengcfg_seqcomplete0
+      - const: framegen0_int0
+      - const: framegen0_int1
+      - const: framegen0_int2
+      - const: framegen0_int3
+      - const: sig0_shdload
+      - const: sig0_valid
+      - const: sig0_error
+      - const: disengcfg_shdload1
+      - const: disengcfg_framecomplete1
+      - const: disengcfg_seqcomplete1
+      - const: framegen1_int0
+      - const: framegen1_int1
+      - const: framegen1_int2
+      - const: framegen1_int3
+      - const: sig1_shdload
+      - const: sig1_valid
+      - const: sig1_error
+      - const: reserved
+      - const: cmdseq_error
+      - const: comctrl_sw0
+      - const: comctrl_sw1
+      - const: comctrl_sw2
+      - const: comctrl_sw3
+      - const: framegen0_primsync_on
+      - const: framegen0_primsync_off
+      - const: framegen0_secsync_on
+      - const: framegen0_secsync_off
+      - const: framegen1_primsync_on
+      - const: framegen1_primsync_off
+      - const: framegen1_secsync_on
+      - const: framegen1_secsync_off
+    minItems: 49
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - interrupt-controller
+  - "#interrupt-cells"
+  - interrupts
+  - interrupt-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx8-lpcg.h>
+
+    interrupt-controller@56180040 {
+        compatible = "fsl,imx8qxp-dc-intc";
+        reg = <0x56180040 0x60>;
+        clocks = <&dc0_lpcg IMX_LPCG_CLK_5>;
+        interrupt-controller;
+        interrupt-parent = <&dc0_irqsteer>;
+        #interrupt-cells = <1>;
+        interrupts = <448>, <449>, <450>,  <64>,
+                      <65>,  <66>,  <67>,  <68>,
+                      <69>,  <70>, <193>, <194>,
+                     <195>, <196>, <197>,  <72>,
+                      <73>,  <74>,  <75>,  <76>,
+                      <77>,  <78>,  <79>,  <80>,
+                      <81>, <199>, <200>, <201>,
+                     <202>, <203>, <204>, <205>,
+                     <206>, <207>, <208>,   <5>,
+                       <0>,   <1>,   <2>,   <3>,
+                       <4>,  <82>,  <83>,  <84>,
+                      <85>, <209>, <210>, <211>,
+                     <212>;
+        interrupt-names = "store9_shdload",
+                          "store9_framecomplete",
+                          "store9_seqcomplete",
+                          "extdst0_shdload",
+                          "extdst0_framecomplete",
+                          "extdst0_seqcomplete",
+                          "extdst4_shdload",
+                          "extdst4_framecomplete",
+                          "extdst4_seqcomplete",
+                          "extdst1_shdload",
+                          "extdst1_framecomplete",
+                          "extdst1_seqcomplete",
+                          "extdst5_shdload",
+                          "extdst5_framecomplete",
+                          "extdst5_seqcomplete",
+                          "disengcfg_shdload0",
+                          "disengcfg_framecomplete0",
+                          "disengcfg_seqcomplete0",
+                          "framegen0_int0",
+                          "framegen0_int1",
+                          "framegen0_int2",
+                          "framegen0_int3",
+                          "sig0_shdload",
+                          "sig0_valid",
+                          "sig0_error",
+                          "disengcfg_shdload1",
+                          "disengcfg_framecomplete1",
+                          "disengcfg_seqcomplete1",
+                          "framegen1_int0",
+                          "framegen1_int1",
+                          "framegen1_int2",
+                          "framegen1_int3",
+                          "sig1_shdload",
+                          "sig1_valid",
+                          "sig1_error",
+                          "reserved",
+                          "cmdseq_error",
+                          "comctrl_sw0",
+                          "comctrl_sw1",
+                          "comctrl_sw2",
+                          "comctrl_sw3",
+                          "framegen0_primsync_on",
+                          "framegen0_primsync_off",
+                          "framegen0_secsync_on",
+                          "framegen0_secsync_off",
+                          "framegen1_primsync_on",
+                          "framegen1_primsync_off",
+                          "framegen1_secsync_on",
+                          "framegen1_secsync_off";
+    };