dt-bindings: media: venus: Add sm8250 dt schema

Add a schema description for the venus video encoder/decoder on the sm8250.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210215160254.1572615-3-bryan.odonoghue@linaro.org

Documentation/devicetree/bindings/media/qcom,sm8250-venus.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/media/qcom,sm8250-venus.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm 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
+
+properties:
+  compatible:
+    const: qcom,sm8250-venus
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  power-domains:
+    minItems: 2
+    maxItems: 3
+
+  power-domain-names:
+    minItems: 2
+    maxItems: 3
+    items:
+      - const: venus
+      - const: vcodec0
+      - const: mx
+
+  clocks:
+    maxItems: 3
+
+  clock-names:
+    items:
+      - const: iface
+      - const: core
+      - const: vcodec0_core
+
+  iommus:
+    maxItems: 1
+
+  memory-region:
+    maxItems: 1
+
+  interconnects:
+    maxItems: 2
+
+  interconnect-names:
+    items:
+      - const: cpu-cfg
+      - const: video-mem
+
+  resets:
+    maxItems: 2
+
+  reset-names:
+    items:
+      - const: bus
+      - const: core
+
+  video-decoder:
+    type: object
+
+    properties:
+      compatible:
+        const: venus-decoder
+
+    required:
+      - compatible
+
+    additionalProperties: false
+
+  video-encoder:
+    type: object
+
+    properties:
+      compatible:
+        const: venus-encoder
+
+    required:
+      - compatible
+
+    additionalProperties: false
+
+  video-firmware:
+    type: object
+
+    description: |
+      Firmware subnode is needed when the platform does not
+      have TrustZone.
+
+    properties:
+      iommus:
+        maxItems: 1
+
+    required:
+      - iommus
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - power-domains
+  - power-domain-names
+  - clocks
+  - clock-names
+  - interconnects
+  - interconnect-names
+  - iommus
+  - memory-region
+  - resets
+  - reset-names
+  - video-decoder
+  - video-encoder
+
+additionalProperties: false
+
+examples:
+  - |
+        #include <dt-bindings/interrupt-controller/arm-gic.h>
+        #include <dt-bindings/clock/qcom,videocc-sm8250.h>
+        #include <dt-bindings/interconnect/qcom,sm8250.h>
+        #include <dt-bindings/clock/qcom,gcc-sm8250.h>
+        #include <dt-bindings/power/qcom-rpmpd.h>
+
+        venus: video-codec@aa00000 {
+            compatible = "qcom,sm8250-venus";
+            reg = <0x0aa00000 0xff000>;
+            interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
+            power-domains = <&videocc MVS0C_GDSC>,
+                            <&videocc MVS0_GDSC>,
+                            <&rpmhpd SM8250_MX>;
+            power-domain-names = "venus", "vcodec0", "mx";
+
+            clocks = <&gcc GCC_VIDEO_AXI0_CLK>,
+                     <&videocc VIDEO_CC_MVS0C_CLK>,
+                     <&videocc VIDEO_CC_MVS0_CLK>;
+            clock-names = "iface", "core", "vcodec0_core";
+
+            interconnects = <&gem_noc MASTER_AMPSS_M0 &config_noc SLAVE_VENUS_CFG>,
+                            <&mmss_noc MASTER_VIDEO_P0 &mc_virt SLAVE_EBI_CH0>;
+            interconnect-names = "cpu-cfg", "video-mem";
+
+            iommus = <&apps_smmu 0x2100 0x0400>;
+            memory-region = <&video_mem>;
+
+            resets = <&gcc GCC_VIDEO_AXI0_CLK_ARES>,
+                     <&videocc VIDEO_CC_MVS0C_CLK_ARES>;
+            reset-names = "bus", "core";
+
+            video-decoder {
+                compatible = "venus-decoder";
+            };
+
+            video-encoder {
+                compatible = "venus-encoder";
+            };
+        };