linux-kernel - Re: [PATCH v2 2/4] arm64: dts: qcom: sm8250-xiaomi-elish: Add mdss and dsi node

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Date:   Wed, 22 Mar 2023 19:16:40 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Jianhua Lu <lujianhua000@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org
Subject: Re: [PATCH v2 2/4] arm64: dts: qcom: sm8250-xiaomi-elish: Add mdss
 and dsi node



On 22.03.2023 18:15, Jianhua Lu wrote:
> xiaomi-elish uses dual dsi mode panel and dsi phy type is cphy.
> 
> Signed-off-by: Jianhua Lu <lujianhua000@...il.com>
> ---
> Changes in v2:
>   - Include missing <dt-bindings/phy/phy.h> for phy-type property.
> 
>  .../dts/qcom/sm8250-xiaomi-elish-common.dtsi  | 73 +++++++++++++++++++
>  1 file changed, 73 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-common.dtsi b/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-common.dtsi
> index a43d4b73ffca..4ff8454d4abe 100644
> --- a/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-common.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-common.dtsi
> @@ -5,6 +5,7 @@
>  
>  #include <dt-bindings/arm/qcom,ids.h>
>  #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
> +#include <dt-bindings/phy/phy.h>
'p' < 'r'


>  #include "sm8250.dtsi"
>  #include "pm8150.dtsi"
>  #include "pm8150b.dtsi"
> @@ -469,6 +470,74 @@ &cdsp {
>  	status = "okay";
>  };
>  
> +&dsi0 {
> +	vdda-supply = <&vreg_l9a_1p2>;
> +	qcom,dual-dsi-mode;
> +	qcom,master-dsi;
Keep the master property after qcom,sync-dual-dsi so that we
get a nice reverse-Christmas-tree.

> +	qcom,sync-dual-dsi;
> +	status = "okay";
> +
> +	display_panel: panel@0 {
> +		reg = <0>;
> +		vddio-supply = <&vreg_l14a_1p88>;
> +		reset-gpios = <&tlmm 75 GPIO_ACTIVE_LOW>;
> +		backlight = <&backlight>;
> +
> +		status = "disabled";
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
Please add newlines before subnodes.

Konrad
> +				panel_in_0: endpoint {
> +					remote-endpoint = <&dsi0_out>;
> +				};
> +			};
> +
> +			port@1{
> +				reg = <1>;
> +				panel_in_1: endpoint {
> +					remote-endpoint = <&dsi1_out>;
> +				};
> +			};
> +
> +		};
> +	};
> +};
> +
> +&dsi0_out {
> +	data-lanes = <0 1 2>;
> +	remote-endpoint = <&panel_in_0>;
> +};
> +
> +&dsi0_phy {
> +	vdds-supply = <&vreg_l5a_0p88>;
> +	phy-type = <PHY_TYPE_CPHY>;
> +	status = "okay";
> +};
> +
> +&dsi1 {
> +	vdda-supply = <&vreg_l9a_1p2>;
> +	qcom,dual-dsi-mode;
> +	qcom,sync-dual-dsi;
> +	/* DSI1 is slave, so use DSI0 clocks */
> +	assigned-clock-parents = <&dsi0_phy 0>, <&dsi0_phy 1>;
> +	status = "okay";
> +};
> +
> +&dsi1_out {
> +	data-lanes = <0 1 2>;
> +	remote-endpoint = <&panel_in_1>;
> +};
> +
> +&dsi1_phy {
> +	vdds-supply = <&vreg_l5a_0p88>;
> +	phy-type = <PHY_TYPE_CPHY>;
> +	status = "okay";
> +};
> +
>  &gmu {
>  	status = "okay";
>  };
> @@ -533,6 +602,10 @@ fuel-gauge@55 {
>  	};
>  };
>  
> +&mdss {
> +	status = "okay";
> +};
> +
>  &pcie0 {
>  	status = "okay";
>  };