Message-ID: <010fd5c2-9357-c43f-7beb-b6d29a7b93da@quicinc.com>
Date:   Wed, 8 Mar 2023 15:51:11 -0800
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Subject: Re: [PATCH v4 09/11] arm64: dts: qcom: sm8350: Add display system
 nodes
Content-Language: en-US
To:     Robert Foss <robert.foss@linaro.org>, <robdclark@gmail.com>,
        <quic_abhinavk@quicinc.com>, <dmitry.baryshkov@linaro.org>,
        <sean@poorly.run>, <airlied@gmail.com>, <daniel@ffwll.ch>,
        <robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>,
        <agross@kernel.org>, <andersson@kernel.org>,
        <konrad.dybcio@somainline.org>,
        <angelogioacchino.delregno@somainline.org>,
        <loic.poulain@linaro.org>, <vkoul@kernel.org>, <a39.skl@gmail.com>,
        <quic_khsieh@quicinc.com>, <quic_vpolimer@quicinc.com>,
        <swboyd@chromium.org>, <dianders@chromium.org>,
        <liushixin2@huawei.com>, <linux-arm-msm@vger.kernel.org>,
        <dri-devel@lists.freedesktop.org>,
        <freedreno@lists.freedesktop.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, Jonathan Marek <jonathan@marek.ca>,
        <vinod.koul@linaro.org>
References: <20221230153554.105856-1-robert.foss@linaro.org>
 <20221230153554.105856-10-robert.foss@linaro.org>
From:   Jessica Zhang <quic_jesszhan@quicinc.com>
In-Reply-To: <20221230153554.105856-10-robert.foss@linaro.org>
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On 12/30/2022 7:35 AM, 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>

Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Tested-by: Jessica Zhang <quic_jesszhan@quicinc.com> #SM8350 (HDK)

> ---
>   arch/arm64/boot/dts/qcom/sm8350.dtsi | 297 ++++++++++++++++++++++++++-
>   1 file changed, 293 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi
> index bdefbbb2e38f..a80c0bf6d7fd 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 +2536,302 @@ usb_2_dwc3: usb@a800000 {
>   			};
>   		};
>   
> +		mdss: display-subsystem@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>;
> +
> +			iommus = <&apps_smmu 0x820 0x402>;
> +
> +			status = "disabled";
> +
> +			#address-cells = <2>;
> +			#size-cells = <2>;
> +			ranges;
> +
> +			dpu_opp_table: opp-table {
> +				compatible = "operating-points-v2";
> +
> +				/* TODO: opp-200000000 should work with
> +				 * &rpmhpd_opp_low_svs, but one some of
> +				 * sm8350_hdk boards reboot using this
> +				 * opp.
> +				 */
> +				opp-200000000 {
> +					opp-hz = /bits/ 64 <200000000>;
> +					required-opps = <&rpmhpd_opp_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>;
> +				};
> +			};
> +
> +			mdss_mdp: display-controller@ae01000 {
> +				compatible = "qcom,sm8350-dpu";
> +				reg = <0 0x0ae01000 0 0x8f000>,
> +				      <0 0x0aeb0000 0 0x2008>;
> +				reg-names = "mdp", "vbif";
> +
> +				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 = <&dpu_opp_table>;
> +				power-domains = <&rpmhpd SM8350_MMCX>;
> +
> +				interrupt-parent = <&mdss>;
> +				interrupts = <0>;
> +
> +				ports {
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					port@0 {
> +						reg = <0>;
> +						dpu_intf1_out: endpoint {
> +							remote-endpoint = <&dsi0_in>;
> +						};
> +					};
> +				};
> +			};
> +
> +			mdss_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 = <&mdss_dsi0_phy 0>,
> +							 <&mdss_dsi0_phy 1>;
> +
> +				operating-points-v2 = <&dsi0_opp_table>;
> +				power-domains = <&rpmhpd SM8350_MMCX>;
> +
> +				phys = <&mdss_dsi0_phy>;
> +
> +				status = "disabled";
> +
> +				dsi0_opp_table: opp-table {
> +					compatible = "operating-points-v2";
> +
> +					/* TODO: opp-187500000 should work with
> +					 * &rpmhpd_opp_low_svs, but one some of
> +					 * sm8350_hdk boards reboot using this
> +					 * opp.
> +					 */
> +					opp-187500000 {
> +						opp-hz = /bits/ 64 <187500000>;
> +						required-opps = <&rpmhpd_opp_svs>;
> +					};
> +
> +					opp-300000000 {
> +						opp-hz = /bits/ 64 <300000000>;
> +						required-opps = <&rpmhpd_opp_svs>;
> +					};
> +
> +					opp-358000000 {
> +						opp-hz = /bits/ 64 <358000000>;
> +						required-opps = <&rpmhpd_opp_svs_l1>;
> +					};
> +				};
> +
> +				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 {
> +						};
> +					};
> +				};
> +			};
> +
> +			mdss_dsi0_phy: phy@ae94400 {
> +				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";
> +			};
> +
> +			mdss_dsi1: dsi@ae96000 {
> +				compatible = "qcom,mdss-dsi-ctrl";
> +				reg = <0 0x0ae96000 0 0x400>;
> +				reg-names = "dsi_ctrl";
> +
> +				interrupt-parent = <&mdss>;
> +				interrupts = <4>;
> +
> +				clocks = <&dispcc DISP_CC_MDSS_BYTE1_CLK>,
> +					 <&dispcc DISP_CC_MDSS_BYTE1_INTF_CLK>,
> +					 <&dispcc DISP_CC_MDSS_PCLK1_CLK>,
> +					 <&dispcc DISP_CC_MDSS_ESC1_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_BYTE1_CLK_SRC>,
> +						  <&dispcc DISP_CC_MDSS_PCLK1_CLK_SRC>;
> +				assigned-clock-parents = <&mdss_dsi1_phy 0>,
> +							 <&mdss_dsi1_phy 1>;
> +
> +				operating-points-v2 = <&dsi1_opp_table>;
> +				power-domains = <&rpmhpd SM8350_MMCX>;
> +
> +				phys = <&mdss_dsi1_phy>;
> +
> +				status = "disabled";
> +
> +				dsi1_opp_table: opp-table {
> +					compatible = "operating-points-v2";
> +
> +					/* TODO: opp-187500000 should work with
> +					 * &rpmhpd_opp_low_svs, but one some of
> +					 * sm8350_hdk boards reboot using this
> +					 * opp.
> +					 */
> +					opp-187500000 {
> +						opp-hz = /bits/ 64 <187500000>;
> +						required-opps = <&rpmhpd_opp_svs>;
> +					};
> +
> +					opp-300000000 {
> +						opp-hz = /bits/ 64 <300000000>;
> +						required-opps = <&rpmhpd_opp_svs>;
> +					};
> +
> +					opp-358000000 {
> +						opp-hz = /bits/ 64 <358000000>;
> +						required-opps = <&rpmhpd_opp_svs_l1>;
> +					};
> +				};
> +
> +				ports {
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					port@0 {
> +						reg = <0>;
> +						dsi1_in: endpoint {
> +						};
> +					};
> +
> +					port@1 {
> +						reg = <1>;
> +						dsi1_out: endpoint {
> +						};
> +					};
> +				};
> +			};
> +
> +			mdss_dsi1_phy: phy@ae96400 {
> +				compatible = "qcom,dsi-phy-5nm-8350";
> +				reg = <0 0x0ae96400 0 0x200>,
> +				      <0 0x0ae96600 0 0x280>,
> +				      <0 0x0ae96900 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";
> +			};
> +		};
> +
>   		dispcc: clock-controller@af00000 {
>   			compatible = "qcom,sm8350-dispcc";
>   			reg = <0 0x0af00000 0 0x10000>;
>   			clocks = <&rpmhcc RPMH_CXO_CLK>,
> -				 <0>,
> -				 <0>,
> -				 <0>,
> -				 <0>,
> +				 <&mdss_dsi0_phy 0>, <&mdss_dsi0_phy 1>,
> +				 <0>, <0>,
>   				 <0>,
>   				 <0>;
>   			clock-names = "bi_tcxo",
> -- 
> 2.34.1
>