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Message-ID: <c868e55d-b808-0ca9-4e84-baf94c469182@linaro.org>
Date:   Fri, 28 Oct 2022 18:01:27 -0400
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Subject: Re: [PATCH v1 7/9] arm64: dts: qcom: sm8350: Add display system nodes
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To:     Robert Foss <robert.foss@linaro.org>, agross@kernel.org,
        bjorn.andersson@linaro.org, konrad.dybcio@somainline.org,
        robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
        robdclark@gmail.com, quic_abhinavk@quicinc.com,
        dmitry.baryshkov@linaro.org, sean@poorly.run, airlied@linux.ie,
        daniel@ffwll.ch, quic_kalyant@quicinc.com, swboyd@chromium.org,
        angelogioacchino.delregno@somainline.org, loic.poulain@linaro.org,
        quic_vpolimer@quicinc.com, vkoul@kernel.org, dianders@chromium.org,
        linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        freedreno@lists.freedesktop.org,
        Jonathan Marek <jonathan@marek.ca>, vinod.koul@linaro.org,
        quic_jesszhan@quicinc.com,
        Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
References: <20221028120812.339100-1-robert.foss@linaro.org>
 <20221028120812.339100-8-robert.foss@linaro.org>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <20221028120812.339100-8-robert.foss@linaro.org>
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Precedence: bulk

On 28/10/2022 08:08, Robert Foss wrote:
> Add mdss, mdss_mdp, dsi0, dsi0_phy nodes. With these
> nodes the display subsystem is configured to support
> one DSI output.
> 
> Signed-off-by: Robert Foss <robert.foss@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/sm8350.dtsi | 196 ++++++++++++++++++++++++++-
>  1 file changed, 192 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi
> index b6e44cd3b394..eaa3cdee1860 100644
> --- a/arch/arm64/boot/dts/qcom/sm8350.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi
> @@ -3,6 +3,7 @@
>   * Copyright (c) 2020, Linaro Limited
>   */
>  
> +#include <dt-bindings/interconnect/qcom,sm8350.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
>  #include <dt-bindings/clock/qcom,dispcc-sm8350.h>
>  #include <dt-bindings/clock/qcom,gcc-sm8350.h>
> @@ -2535,14 +2536,200 @@ usb_2_dwc3: usb@a800000 {
>  			};
>  		};
>  
> +		mdss: mdss@ae00000 {
> +			compatible = "qcom,sm8350-mdss";
> +			reg = <0 0x0ae00000 0 0x1000>;
> +			reg-names = "mdss";
> +
> +			interconnects = <&mmss_noc MASTER_MDP0 0 &mc_virt SLAVE_EBI1 0>,
> +					<&mmss_noc MASTER_MDP1 0 &mc_virt SLAVE_EBI1 0>;
> +			interconnect-names = "mdp0-mem", "mdp1-mem";
> +
> +			power-domains = <&dispcc MDSS_GDSC>;
> +			resets = <&dispcc DISP_CC_MDSS_CORE_BCR>;
> +
> +			clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +				 <&gcc GCC_DISP_HF_AXI_CLK>,
> +				 <&gcc GCC_DISP_SF_AXI_CLK>,
> +				 <&dispcc DISP_CC_MDSS_MDP_CLK>;
> +			clock-names = "iface", "bus", "nrt_bus", "core";
> +
> +			interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-controller;
> +			#interrupt-cells = <1>;
> +
> +			status = "ok";

No need for this.

> +
> +			#address-cells = <2>;
> +			#size-cells = <2>;
> +			ranges;
> +
> +			mdss_mdp: mdp@ae01000 {

Node name: display-controller
> +				compatible = "qcom,sm8350-dpu";
> +				reg = <0 0x0ae01000 0 0x8f000>,
> +				      <0 0x0aeb0000 0 0x2008>;
> +				reg-names = "mdp", "vbif";
> +				iommus = <&apps_smmu 0x820 0x402>;
> +
> +				clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
> +					<&gcc GCC_DISP_SF_AXI_CLK>,
> +					<&dispcc DISP_CC_MDSS_AHB_CLK>,
> +					<&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
> +					<&dispcc DISP_CC_MDSS_MDP_CLK>,
> +					<&dispcc DISP_CC_MDSS_VSYNC_CLK>;
> +				clock-names = "bus",
> +					      "nrt_bus",
> +					      "iface",
> +					      "lut",
> +					      "core",
> +					      "vsync";
> +
> +				assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
> +				assigned-clock-rates = <19200000>;
> +
> +				operating-points-v2 = <&mdp_opp_table>;
> +				power-domains = <&rpmhpd SM8350_MMCX>;
> +
> +				interrupt-parent = <&mdss>;
> +				interrupts = <0>;
> +
> +				status = "ok";
> +
> +				ports {
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					port@0 {
> +						reg = <0>;
> +						dpu_intf1_out: endpoint {
> +							remote-endpoint = <&dsi0_in>;
> +						};
> +					};
> +				};
> +
> +				mdp_opp_table: mdp-opp-table {

I have doubts that it passes dtbs_checks... opp-table

> +					compatible = "operating-points-v2";
> +
> +					opp-200000000 {
> +						opp-hz = /bits/ 64 <200000000>;
> +						required-opps = <&rpmhpd_opp_low_svs>;
> +					};
> +
> +					opp-300000000 {
> +						opp-hz = /bits/ 64 <300000000>;
> +						required-opps = <&rpmhpd_opp_svs>;
> +					};
> +
> +					opp-345000000 {
> +						opp-hz = /bits/ 64 <345000000>;
> +						required-opps = <&rpmhpd_opp_svs_l1>;
> +					};
> +
> +					opp-460000000 {
> +						opp-hz = /bits/ 64 <460000000>;
> +						required-opps = <&rpmhpd_opp_nom>;
> +					};
> +				};
> +			};
> +
> +			dsi0: dsi@ae94000 {
> +				compatible = "qcom,mdss-dsi-ctrl";
> +				reg = <0 0x0ae94000 0 0x400>;
> +				reg-names = "dsi_ctrl";
> +
> +				interrupt-parent = <&mdss>;
> +				interrupts = <4>;
> +
> +				clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
> +					 <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
> +					 <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
> +					 <&dispcc DISP_CC_MDSS_ESC0_CLK>,
> +					 <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +					 <&gcc GCC_DISP_HF_AXI_CLK>;
> +				clock-names = "byte",
> +					      "byte_intf",
> +					      "pixel",
> +					      "core",
> +					      "iface",
> +					      "bus";
> +
> +				assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK_SRC>,
> +						  <&dispcc DISP_CC_MDSS_PCLK0_CLK_SRC>;
> +				assigned-clock-parents = <&dsi0_phy 0>,
> +							 <&dsi0_phy 1>;
> +
> +				operating-points-v2 = <&dsi_opp_table>;
> +				power-domains = <&rpmhpd SM8350_MMCX>;
> +
> +				phys = <&dsi0_phy>;
> +				phy-names = "dsi";
> +
> +				status = "disabled";
> +
> +				ports {
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					port@0 {
> +						reg = <0>;
> +						dsi0_in: endpoint {
> +							remote-endpoint = <&dpu_intf1_out>;
> +						};
> +					};
> +
> +					port@1 {
> +						reg = <1>;
> +						dsi0_out: endpoint {
> +						};
> +					};
> +				};
> +			};
> +
> +			dsi0_phy: dsi-phy@ae94400 {

Just "phy". I think Dmitry was renaming all of these.

> +				compatible = "qcom,dsi-phy-5nm-8350";
> +				reg = <0 0x0ae94400 0 0x200>,
> +				      <0 0x0ae94600 0 0x280>,
> +				      <0 0x0ae94900 0 0x260>;
> +				reg-names = "dsi_phy",
> +					    "dsi_phy_lane",
> +					    "dsi_pll";
> +
> +				#clock-cells = <1>;
> +				#phy-cells = <0>;
> +
> +				clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +					 <&rpmhcc RPMH_CXO_CLK>;
> +				clock-names = "iface", "ref";
> +
> +				status = "disabled";
> +
> +				dsi_opp_table: dsi-opp-table {

opp-table

Run `make dtbs_check`


Best regards,
Krzysztof