Re: [PATCH v6 06/12] dt-bindings: display/msm: split dpu-sc7180 into DPU and MDSS parts

Krzysztof Kozlowski
2022-09-08T13:44:07Z

On 01/09/2022 12:23, 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@linaro.org>

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

> - #address-cells = <1>;
> - #size-cells = <0>;
> -
> - port@0 {
> - reg = <0>;
> - dpu_intf1_out: endpoint {
> - remote-endpoint = <&dsi0_in>;
> - };
> - };
> -
> - port@2 {
> - reg = <2>;
> - dpu_intf0_out: endpoint {
> - remote-endpoint = <&dp_in>;
> - };
> - };
> - };
> - };
> + display-controller@ae01000 {
> + compatible = "qcom,sc7180-dpu";
> + reg = <0x0ae01000 0x8f000>,

You need to fix up the indentation.

> + <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@0 {
> + reg = <0>;
> + dpu_intf1_out: endpoint {
> + remote-endpoint = <&dsi0_in>;
> + };
> + };
> +
> + port@2 {
> + reg = <2>;
> + dpu_intf0_out: endpoint {
> + remote-endpoint = <&dp_in>;
> + };
> + };
> + };
> };
> ...
> diff --git a/Documentation/devicetree/bindings/display/msm/mdss-sc7180.yaml b/Documentation/devicetree/bindings/display/msm/mdss-sc7180.yaml
> new file mode 100644
> index 000000000000..27d944f0e471
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/msm/mdss-sc7180.yaml
> @@ -0,0 +1,85 @@
> +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/msm/mdss-sc7180.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Display MDSS dt properties for SC7180 target
> +
> +maintainers:
> + - Krishna Manikandan <quic_mkrishn@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.
> +
> +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

You have now schema for qcom,sc7180-dpu so just reference it here instead.

> +
> +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@ae00000 {
> + #address-cells = <1>;

Fix indentation to four spaces.

Best regards,
Krzysztof