linux-kernel - Re: [PATCH 1/2] dt-bindings: display/msm: document DPU on SM7150

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Date:   Thu, 3 Aug 2023 23:50:21 +0200
From:   Marijn Suijten <marijn.suijten@...ainline.org>
To:     Danila Tikhonov <danila@...xyga.com>
Cc:     robdclark@...il.com, quic_abhinavk@...cinc.com,
        dmitry.baryshkov@...aro.org, sean@...rly.run, airlied@...il.com,
        daniel@...ll.ch, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        konrad.dybcio@...aro.org, neil.armstrong@...aro.org,
        rfoss@...nel.org, andersson@...nel.org, quic_khsieh@...cinc.com,
        quic_vpolimer@...cinc.com, quic_rmccann@...cinc.com,
        quic_jesszhan@...cinc.com, liushixin2@...wei.com,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, davidwronek@...il.com
Subject: Re: [PATCH 1/2] dt-bindings: display/msm: document DPU on SM7150

On 2023-08-03 22:47:23, Danila Tikhonov wrote:
> Document the DPU hardware found on the Qualcomm SM7150 platform.
> 
> Signed-off-by: Danila Tikhonov <danila@...xyga.com>
> ---
>  .../bindings/display/msm/qcom,sm7150-dpu.yaml | 116 ++++++++++++++++++
>  1 file changed, 116 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/msm/qcom,sm7150-dpu.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm7150-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm7150-dpu.yaml
> new file mode 100644
> index 000000000000..0d86997ae09f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/msm/qcom,sm7150-dpu.yaml
> @@ -0,0 +1,116 @@
> +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/msm/qcom,sm7150-dpu.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm SM7150 Display DPU
> +
> +maintainers:
> +  - Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> +  - Danila Tikhonov <danila@...xyga.com>
> +
> +$ref: /schemas/display/msm/dpu-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: qcom,sm7150-dpu
> +
> +  reg:
> +    items:
> +      - description: Address offset and size for mdp register set
> +      - description: Address offset and size for vbif register set
> +
> +  reg-names:
> +    items:
> +      - const: mdp
> +      - const: vbif
> +
> +  clocks:
> +    items:
> +      - description: Display hf axi clock
> +      - description: Display ahb clock
> +      - description: Display rotator clock
> +      - description: Display lut clock
> +      - description: Display core clock
> +      - description: Display vsync clock
> +
> +  clock-names:
> +    items:
> +      - const: bus
> +      - const: iface
> +      - const: rot
> +      - const: lut
> +      - const: core
> +      - const: vsync
> +
> +required:
> +  - compatible
> +  - reg
> +  - reg-names
> +  - clocks
> +  - clock-names
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/qcom,sm7150-dispcc.h>
> +    #include <dt-bindings/clock/qcom,sm7150-gcc.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/power/qcom-rpmpd.h>
> +
> +    display-controller@...1000 {
> +        compatible = "qcom,sm7150-dpu";
> +        reg = <0x0ae01000 0x8f000>,
> +              <0x0aeb0000 0x2008>;
> +        reg-names = "mdp", "vbif";
> +
> +        clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
> +                 <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +                 <&dispcc DISP_CC_MDSS_ROT_CLK>,
> +                 <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
> +                 <&dispcc DISP_CC_MDSS_MDP_CLK>,
> +                 <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
> +        clock-names = "bus", "iface", "rot", "lut", "core",
> +                      "vsync";
> +
> +        assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>,
> +                          <&dispcc DISP_CC_MDSS_ROT_CLK>,
> +                          <&dispcc DISP_CC_MDSS_AHB_CLK>;
> +        assigned-clock-rates = <19200000>,
> +                               <19200000>,
> +                               <19200000>;
> +
> +        operating-points-v2 = <&mdp_opp_table>;
> +        power-domains = <&rpmhpd SM7150_CX>;
> +
> +        interrupt-parent = <&mdss>;
> +        interrupts = <0>;
> +
> +        ports {
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +
> +            port@0 {
> +                reg = <0>;
> +                endpoint {
> +                    remote-endpoint = <&dsi0_in>;
> +                };
> +            };
> +
> +            port@1 {
> +                reg = <1>;
> +                endpoint {
> +                    remote-endpoint = <&dsi1_in>;
> +                };

I don't think this compiles with a missing closing bracket.  Did you
test the bindings?

- Marijn

> +
> +            port@2 {
> +                reg = <2>;
> +                endpoint {
> +                    remote-endpoint = <&dp_in>;
> +                };
> +            };
> +        };
> +    };
> +...
> -- 
> 2.41.0
>