[PATCH v7 06/12] dt-bindings: display/msm: split dpu-sc7180 into DPU and MDSS parts

[Krzysztof Kozlowski]

On 15/09/2022 15:37, Dmitry Baryshkov wrote:
> In order to make the schema more readable, split dpu-sc7180 into the DPU
> and MDSS parts, each one describing just a single device binding.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>


Thank you for your patch. There is something to discuss/improve.

> +---
> +$id: http://devicetree.org/schemas/display/msm/qcom,sc7180-dpu.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Display DPU dt properties for SC7180 target
> +
> +maintainers:
> +  - Krishna Manikandan <quic_mkrishn at quicinc.com>
> +

missing allOf

> +$ref: /schemas/display/msm/dpu-common.yaml#
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: qcom,sc7180-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
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
> +    #include <dt-bindings/clock/qcom,gcc-sc7180.h>
> +    #include <dt-bindings/power/qcom-rpmpd.h>
> +
> +    display-controller at ae01000 {
> +        compatible = "qcom,sc7180-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";
> +
> +        interrupt-parent = <&mdss>;
> +        interrupts = <0>;
> +        power-domains = <&rpmhpd SC7180_CX>;
> +        operating-points-v2 = <&mdp_opp_table>;
> +
> +        ports {
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +
> +            port at 0 {
> +                reg = <0>;
> +                endpoint {
> +                    remote-endpoint = <&dsi0_in>;
> +                };
> +            };
> +
> +            port at 2 {
> +                reg = <2>;
> +                endpoint {
> +                    remote-endpoint = <&dp_in>;
> +                };
> +            };
> +        };
> +    };
> +...
> diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc7180-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc7180-mdss.yaml
> new file mode 100644
> index 000000000000..e507c091b60f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/msm/qcom,sc7180-mdss.yaml
> @@ -0,0 +1,84 @@
> +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/msm/qcom,sc7180-mdss.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm SC7180 Display MDSS
> +
> +maintainers:
> +  - Krishna Manikandan <quic_mkrishn at quicinc.com>
> +
> +description:
> +  Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates
> +  sub-blocks like DPU display controller, DSI and DP interfaces etc. Device tree
> +  bindings of MDSS are mentioned for SC7180 target.
> +

missing allOf.

> +$ref: /schemas/display/msm/mdss-common.yaml#
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: qcom,sc7180-mdss
> +
> +  clocks:
> +    items:
> +      - description: Display AHB clock from gcc
> +      - description: Display AHB clock from dispcc
> +      - description: Display core clock
> +
> +  clock-names:
> +    items:
> +      - const: iface
> +      - const: ahb
> +      - const: core
> +
> +  iommus:
> +    maxItems: 1
> +
> +  interconnects:
> +    maxItems: 1
> +
> +  interconnect-names:
> +    maxItems: 1
> +
> +patternProperties:
> +  "^display-controller@[0-9a-f]+$":
> +    type: object
> +    properties:
> +      compatible:
> +        const: qcom,sc7180-dpu
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
> +    #include <dt-bindings/clock/qcom,gcc-sc7180.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/interconnect/qcom,sdm845.h>
> +    #include <dt-bindings/power/qcom-rpmpd.h>
> +
> +    display-subsystem at ae00000 {
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +        compatible = "qcom,sc7180-mdss";
> +        reg = <0xae00000 0x1000>;
> +        reg-names = "mdss";
> +        power-domains = <&dispcc MDSS_GDSC>;
> +        clocks = <&gcc GCC_DISP_AHB_CLK>,
> +                 <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +                 <&dispcc DISP_CC_MDSS_MDP_CLK>;
> +        clock-names = "iface", "ahb", "core";
> +
> +        interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
> +        interrupt-controller;
> +        #interrupt-cells = <1>;
> +
> +        interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>;
> +        interconnect-names = "mdp0-mem";
> +
> +        iommus = <&apps_smmu 0x800 0x2>;
> +        ranges;

This should come with full example, so with display-controller child
(unless Rob asked not to?)

> +    };
> +...

Best regards,
Krzysztof