linux-kernel - Re: [v2] arm64: dts: sc7180: add display dt nodes

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Date:   Thu, 23 Jan 2020 10:41:29 -0800
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Harigovindan P <harigovi@...eaurora.org>
Cc:     dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, robdclark@...il.com,
        seanpaul@...omium.org, hoegsberg@...omium.org,
        kalyan_t@...eaurora.org, nganji@...eaurora.org
Subject: Re: [v2] arm64: dts: sc7180: add display dt nodes

On Thu 23 Jan 04:15 PST 2020, Harigovindan P wrote:

> Add display, DSI hardware DT nodes for sc7180.
> 
> Changes in v1:
> 	-Added display DT nodes for sc7180
> Changes in v2:
> 	-Renamed node names
> 	-Corrected code alignments
> 	-Removed extra new line

Please keep the changelist after the '---' for the dts patches.

> 
> Signed-off-by: Harigovindan P <harigovi@...eaurora.org>
> ---
>  arch/arm64/boot/dts/qcom/sc7180-idp.dts |  57 +++++++++++++++
>  arch/arm64/boot/dts/qcom/sc7180.dtsi    | 125 ++++++++++++++++++++++++++++++++
>  2 files changed, 182 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7180-idp.dts b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
> index 388f50a..f410614 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180-idp.dts
> +++ b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
> @@ -232,6 +232,50 @@
>  	};
>  };
>  
> +&dsi_controller {
> +	status = "okay";
> +
> +	vdda-supply = <&vreg_l3c_1p2>;
> +
> +	panel@0 {
> +		compatible = "visionox,rm69299-1080p-display";
> +		reg = <0>;
> +
> +		vdda-supply = <&vreg_l8c_1p8>;
> +		vdd3p3-supply = <&vreg_l18a_2p8>;
> +
> +		pinctrl-names = "default", "suspend";
> +		pinctrl-0 = <&disp_pins_default>;
> +		pinctrl-1 = <&disp_pins_default>;
> +
> +		reset-gpios = <&pm6150l_gpio 3 0>;

Please replace the 0 here with GPIO_ACTIVE_HIGH

> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			port@0 {
> +				reg = <0>;
> +				panel0_in: endpoint {
> +					remote-endpoint = <&dsi0_out>;
> +				};
> +			};
> +		};
> +	};
[..]
> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> index 3bc3f64..81c3aab 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> @@ -1184,6 +1184,131 @@
>  			#power-domain-cells = <1>;
>  		};
>  
> +		display_subsystem: mdss@...0000 {

It was the name, not the label, that Stephen asked you to make generic.

> +			compatible = "qcom,sc7180-mdss";
> +			reg = <0 0x0ae00000 0 0x1000>;
> +			reg-names = "mdss";
> +
[..]
> +			display_controller: mdp@...0000 {

mdp: display-controller@...0000 {

[..]
> +			};
> +
> +			dsi_controller: qcom,mdss_dsi_ctrl0@...4000 {

In particular you shouldn't have qcom, in the node name.

[..]
> +
> +			dsi_phy: dsi-phy0@...4400 {

phy@...4400

Regards,
Bjorn