Thread (36 messages) 36 messages, 5 authors, 2024-01-22

Re: [PATCH 1/6] media: dt-bindings: Document SC8280XP/SM8350 Venus

From: Krzysztof Kozlowski <hidden>
Date: 2023-08-05 19:29:21
Also in: linux-arm-msm, linux-media, lkml

On 04/08/2023 22:09, Konrad Dybcio wrote:
Both of these SoCs implement an IRIS2 block, with SC8280XP being able
to clock it a bit higher.
...
+
+  iommus:
+    maxItems: 1
+
+  video-decoder:
+    type: object
+
+    properties:
+      compatible:
+        const: venus-decoder
That's not how compatibles are constructed... missing vendor prefix, SoC
or IP block name.
+
+    required:
+      - compatible
+
+    additionalProperties: false
Why do you need this child node? Child nodes without properties are
usually useless.
+
+  video-encoder:
+    type: object
+
+    properties:
+      compatible:
+        const: venus-encoder
+
+    required:
+      - compatible
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - power-domain-names
+  - iommus
+  - video-decoder
+  - video-encoder
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/qcom,gcc-sm8350.h>
+    #include <dt-bindings/clock/qcom,sm8350-videocc.h>
+    #include <dt-bindings/interconnect/qcom,sm8350.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+
+    venus: video-codec@aa00000 {
+        compatible = "qcom,sm8350-venus";
+        reg = <0x0aa00000 0x100000>;
+        interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
+
+        clocks = <&gcc GCC_VIDEO_AXI0_CLK>,
+                 <&videocc VIDEO_CC_MVS0C_CLK>,
+                 <&videocc VIDEO_CC_MVS0_CLK>;
+        clock-names = "iface",
+                      "core",
+                      "vcodec0_core";
+
+        resets = <&gcc GCC_VIDEO_AXI0_CLK_ARES>;
+        reset-names = "core";
+
+        power-domains = <&videocc MVS0C_GDSC>,
+                        <&videocc MVS0_GDSC>,
+                        <&rpmhpd SM8350_MX>;
+        power-domain-names = "venus",
+                             "vcodec0",
+                             "mx";
+
+        interconnects = <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_VENUS_CFG 0>,
+                        <&mmss_noc MASTER_VIDEO_P0 0 &mc_virt SLAVE_EBI1 0>,
+                        <&mmss_noc MASTER_VIDEO_P0 0 &gem_noc SLAVE_LLCC 0>;
+        interconnect-names = "cpu-cfg",
+                             "video-mem",
+                             "video-llcc";
+
+        operating-points-v2 = <&venus_opp_table>;
+        iommus = <&apps_smmu 0x2100 0x400>;
+        memory-region = <&pil_video_mem>;
+
+        status = "disabled";
Drop status.
+
+        video-decoder {
Best regards,
Krzysztof
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