media: dt-bindings: media: venus: Add msm8939 dt schema

Add a schema description for the Venus video decoder/encoder IP in
MSM8939.

Signed-off-by: André Apitzsch <git@apitzsch.eu>

Author: André Apitzsch

Documentation/devicetree/bindings/media/qcom,msm8939-venus.yaml

@@ -0,0 +1,126 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/qcom,msm8939-venus.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm MSM8939 Venus video encode and decode accelerators
+
+maintainers:
+  - Stanimir Varbanov <stanimir.varbanov@linaro.org>
+
+description: |
+  The Venus IP is a video encode and decode accelerator present
+  on Qualcomm platforms
+
+allOf:
+  - $ref: qcom,venus-common.yaml#
+
+properties:
+  compatible:
+    const: qcom,msm8939-venus
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    maxItems: 3
+
+  clock-names:
+    items:
+      - const: core
+      - const: iface
+      - const: bus
+
+  iommus:
+    maxItems: 1
+
+  video-decoder:
+    type: object
+
+    properties:
+      compatible:
+        const: venus-decoder
+
+      clocks:
+        maxItems: 1
+
+      clock-names:
+        items:
+          - const: core
+
+      power-domains:
+        maxItems: 1
+
+    required:
+      - compatible
+      - clocks
+      - clock-names
+      - power-domains
+
+    additionalProperties: false
+
+  video-encoder:
+    type: object
+
+    properties:
+      compatible:
+        const: venus-encoder
+
+      clocks:
+        maxItems: 1
+
+      clock-names:
+        items:
+          - const: core
+
+      power-domains:
+        maxItems: 1
+
+    required:
+      - compatible
+      - clocks
+      - clock-names
+      - power-domains
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - iommus
+  - video-decoder
+  - video-encoder
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/qcom,gcc-msm8939.h>
+
+    video-codec@1d00000 {
+        compatible = "qcom,msm8939-venus";
+        reg = <0x01d00000 0xff000>;
+        interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&gcc GCC_VENUS0_VCODEC0_CLK>,
+                 <&gcc GCC_VENUS0_AHB_CLK>,
+                 <&gcc GCC_VENUS0_AXI_CLK>;
+        clock-names = "core", "iface", "bus";
+        power-domains = <&gcc VENUS_GDSC>;
+        iommus = <&apps_iommu 5>;
+        memory-region = <&venus_mem>;
+
+        video-decoder {
+          compatible = "venus-decoder";
+          clocks = <&gcc GCC_VENUS0_CORE0_VCODEC0_CLK>;
+          clock-names = "core";
+          power-domains = <&gcc VENUS_CORE0_GDSC>;
+        };
+
+        video-encoder {
+          compatible = "venus-encoder";
+          clocks = <&gcc GCC_VENUS0_CORE1_VCODEC0_CLK>;
+          clock-names = "core";
+          power-domains = <&gcc VENUS_CORE1_GDSC>;
+        };
+    };