linux-kernel - Re: [PATCH 06/10] arm64: dts: imx8mp-skov: describe LVDS display pipeline

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Message-ID: <Z2RZ1o6AWGRe0ww9@lizhi-Precision-Tower-5810>
Date: Thu, 19 Dec 2024 12:37:26 -0500
From: Frank Li <Frank.li@....com>
To: Ahmad Fatoum <a.fatoum@...gutronix.de>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Oleksij Rempel <o.rempel@...gutronix.de>,
	devicetree@...r.kernel.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 06/10] arm64: dts: imx8mp-skov: describe LVDS display
 pipeline

On Thu, Dec 19, 2024 at 08:25:30AM +0100, Ahmad Fatoum wrote:
> From: Oleksij Rempel <o.rempel@...gutronix.de>
>
> The Skov i.MX8MP LT6 device tree so far described the touch screen, but
> didn't describe the screen itself. Fill out these missing pieces.

Add "ti,sn65lvds822" touch screen description for i.MX8MP LT6 board.

Frank

> Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
> Signed-off-by: Ahmad Fatoum <a.fatoum@...gutronix.de>
> ---
>  .../boot/dts/freescale/imx8mp-skov-revb-lt6.dts    | 60 ++++++++++++++++++++++
>  1 file changed, 60 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-skov-revb-lt6.dts b/arch/arm64/boot/dts/freescale/imx8mp-skov-revb-lt6.dts
> index ccbd3abedd69..baecf768a2ee 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-skov-revb-lt6.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-skov-revb-lt6.dts
> @@ -8,6 +8,45 @@ / {
>  	model = "SKOV IMX8MP CPU revB - LT6";
>  	compatible = "skov,imx8mp-skov-revb-lt6", "fsl,imx8mp";
>
> +	lvds-decoder {
> +		compatible = "ti,sn65lvds822", "lvds-decoder";
> +		power-supply = <&reg_3v3>;
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +
> +				in_lvds1: endpoint {
> +					data-mapping = "vesa-24";
> +					remote-endpoint = <&ldb_lvds_ch1>;
> +				};
> +			};
> +
> +			port@1 {
> +				reg = <1>;
> +
> +				lvds_decoder_out: endpoint {
> +					remote-endpoint = <&panel_in>;
> +				};
> +			};
> +		};
> +	};
> +
> +	panel {
> +		compatible = "logictechno,lttd800480070-l6wh-rt";
> +		backlight = <&backlight>;
> +		power-supply = <&reg_tft_vcom>;
> +
> +		port {
> +			panel_in: endpoint {
> +				remote-endpoint = <&lvds_decoder_out>;
> +			};
> +		};
> +	};
> +
>  	touchscreen {
>  		compatible = "resistive-adc-touch";
>  		io-channels = <&adc_ts 1>, <&adc_ts 3>, <&adc_ts 4>, <&adc_ts 5>;
> @@ -78,6 +117,27 @@ channel@5 {
>  	};
>  };
>
> +&lcdif2 {
> +	status = "okay";
> +};
> +
> +&lvds_bridge {
> +	assigned-clocks = <&clk IMX8MP_CLK_MEDIA_LDB>,
> +				 <&clk IMX8MP_VIDEO_PLL1>;
> +	assigned-clock-parents = <&clk IMX8MP_VIDEO_PLL1_OUT>;
> +	/* IMX8MP_VIDEO_PLL1 = IMX8MP_CLK_MEDIA_DISP2_PIX * 2 * 7 */
> +	assigned-clock-rates = <0>, <462000000>;
> +	status = "okay";
> +
> +	ports {
> +		port@2 {
> +			ldb_lvds_ch1: endpoint {
> +				remote-endpoint = <&in_lvds1>;
> +			};
> +		};
> +	};
> +};
> +
>  &pwm1 {
>  	status = "okay";
>  };
>
> --
> 2.39.5
>