Re: [PATCH v3 3/3] arm64: dts: qcom: sm8550-mtp: add DSI panel

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On 18.01.2023 09:55, Neil Armstrong wrote:
> Add nodes for the Visionox VTDR6130 found on the SM8550-MTP
> device.
> 
> TLMM states are also added for the Panel reset GPIO and
> Tearing Effect signal for when the panel is running in
> DSI Command mode.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/qcom/sm8550-mtp.dts | 56 +++++++++++++++++++++++++++++++++
>  1 file changed, 56 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
> index 0dfd1d3db86c..2de387aa2c2d 100644
> --- a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
> +++ b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
> @@ -370,6 +370,34 @@ &mdss {
>  &mdss_dsi0 {
>  	vdda-supply = <&vreg_l3e_1p2>;
>  	status = "okay";
> +
> +	panel@0 {
> +		compatible = "visionox,vtdr6130";
> +		reg = <0>;
> +
> +		pinctrl-names = "default", "sleep";
> +		pinctrl-0 = <&sde_dsi_active>, <&sde_te_active>;
> +		pinctrl-1 = <&sde_dsi_suspend>, <&sde_te_suspend>;
Hm.. I've just realized there are two styles of specifying
phandle arrays: <&a &b> and <&a>, <&b>.. even worse, we
have both of them in our tree.. Krzysztof, Bjorn, which one
should we go with, going forward?


> +
> +		vddio-supply = <&vreg_l12b_1p8>;
> +		vci-supply = <&vreg_l13b_3p0>;
> +		vdd-supply = <&vreg_l11b_1p2>;
> +
> +		reset-gpios = <&tlmm 133 GPIO_ACTIVE_LOW>;
> +
> +		status = "okay";
Superfluous, it's enabled by default, drop

Konrad
> +
> +		port {
> +			panel0_in: endpoint {
> +				remote-endpoint = <&mdss_dsi0_out>;
> +			};
> +		};
> +	};
> +};
> +
> +&mdss_dsi0_out {
> +	remote-endpoint = <&panel0_in>;
> +	data-lanes = <0 1 2 3>;
>  };
>  
>  &mdss_dsi0_phy {
> @@ -415,6 +443,34 @@ &sleep_clk {
>  
>  &tlmm {
>  	gpio-reserved-ranges = <32 8>;
> +
> +	sde_dsi_active: sde-dsi-active-state {
> +		pins = "gpio133";
> +		function = "gpio";
> +		drive-strength = <8>;
> +		bias-disable;
> +	};
> +
> +	sde_dsi_suspend: sde-dsi-suspend-state {
> +		pins = "gpio133";
> +		function = "gpio";
> +		drive-strength = <2>;
> +		bias-pull-down;
> +	};
> +
> +	sde_te_active: sde-te-active-state {
> +		pins = "gpio86";
> +		function = "mdp_vsync";
> +		drive-strength = <2>;
> +		bias-pull-down;
> +	};
> +
> +	sde_te_suspend: sde-te-suspend-state {
> +		pins = "gpio86";
> +		function = "mdp_vsync";
> +		drive-strength = <2>;
> +		bias-pull-down;
> +	};
>  };
>  
>  &uart7 {
> 



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