linux-kernel - Re: [PATCH] arm64: dts: qcom: msm8916-samsung-serranove: Add display panel

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Message-ID: <d377405e-4cad-4c2e-ad38-8c0323384c41@rocketmail.com>
Date: Wed, 11 Dec 2024 01:32:50 +0100
From: Jakob Hauser <jahau@...ketmail.com>
To: Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konradybcio@...nel.org>
Cc: Stephan Gerhold <stephan@...hold.net>, linux-arm-msm@...r.kernel.org,
 linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org,
 ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH] arm64: dts: qcom: msm8916-samsung-serranove: Add display
 panel

Hi Bjorn, Hi Konrad,

gentle reminder that this patch is still open.

Link: 
https://lore.kernel.org/linux-arm-msm/20241114220718.12248-1-jahau@rocketmail.com/T/#u

On 14.11.24 23:07, Jakob Hauser wrote:
> From: Stephan Gerhold <stephan@...hold.net>
> 
> Add the Samsung S6E88A0-AMS427AP24 panel to the device tree for the
> Samsung Galaxy S4 Mini Value Edition. By default the panel displays
> everything horizontally flipped, so add "flip-horizontal" to the panel
> node to correct that.
> 
> Signed-off-by: Stephan Gerhold <stephan@...hold.net>
> Co-developed-by: Jakob Hauser <jahau@...ketmail.com>
> Signed-off-by: Jakob Hauser <jahau@...ketmail.com>
> ---
> Patch base is kernel/git/qcom/linux.git current branch "arm64-for-6.13".
> 
> The panel driver was recently added to linux-next:
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/log/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams427ap24.c?h=next-20241101
> 
> The associated dt-binding in linux-next is:
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/Documentation/devicetree/bindings/display/panel/samsung,s6e88a0-ams427ap24.yaml?h=next-20241101
> ---
>   .../dts/qcom/msm8916-samsung-serranove.dts    | 58 +++++++++++++++++++
>   1 file changed, 58 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-serranove.dts b/arch/arm64/boot/dts/qcom/msm8916-samsung-serranove.dts
> index 5ce8f1350abc..caad1dead2e0 100644
> --- a/arch/arm64/boot/dts/qcom/msm8916-samsung-serranove.dts
> +++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-serranove.dts
> @@ -321,6 +321,41 @@ &blsp_uart2 {
>   	status = "okay";
>   };
>   
> +&gpu {
> +	status = "okay";
> +};
> +
> +&mdss {
> +	status = "okay";
> +};
> +
> +&mdss_dsi0 {
> +	pinctrl-names = "default", "sleep";
> +	pinctrl-0 = <&mdss_default>;
> +	pinctrl-1 = <&mdss_sleep>;
> +
> +	panel@0 {
> +		compatible = "samsung,s6e88a0-ams427ap24";
> +		reg = <0>;
> +
> +		vdd3-supply = <&pm8916_l17>;
> +		vci-supply = <&pm8916_l6>;
> +		reset-gpios = <&tlmm 25 GPIO_ACTIVE_LOW>;
> +		flip-horizontal;
> +
> +		port {
> +			panel_in: endpoint {
> +				remote-endpoint = <&mdss_dsi0_out>;
> +			};
> +		};
> +	};
> +};
> +
> +&mdss_dsi0_out {
> +	data-lanes = <0 1>;
> +	remote-endpoint = <&panel_in>;
> +};
> +
>   &mpss_mem {
>   	reg = <0x0 0x86800000 0x0 0x5a00000>;
>   };
> @@ -330,6 +365,13 @@ &pm8916_resin {
>   	linux,code = <KEY_VOLUMEDOWN>;
>   };
>   
> +&pm8916_rpm_regulators {
> +	pm8916_l17: l17 {
> +		regulator-min-microvolt = <2850000>;
> +		regulator-max-microvolt = <2850000>;
> +	};
> +};
> +
>   &pm8916_vib {
>   	status = "okay";
>   };
> @@ -425,6 +467,22 @@ imu_irq_default: imu-irq-default-state {
>   		bias-disable;
>   	};
>   
> +	mdss_default: mdss-default-state {
> +		pins = "gpio25";
> +		function = "gpio";
> +
> +		drive-strength = <8>;
> +		bias-disable;
> +	};
> +
> +	mdss_sleep: mdss-sleep-state {
> +		pins = "gpio25";
> +		function = "gpio";
> +
> +		drive-strength = <2>;
> +		bias-pull-down;
> +	};
> +
>   	muic_i2c_default: muic-i2c-default-state {
>   		pins = "gpio105", "gpio106";
>   		function = "gpio";

Kind regards,
Jakob