linux-kernel - Re: [PATCH 4/7] ARM: dts: ls1021a-tqmals1021a: Add LVDS overlay for Tianma TM070JVGH33

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Message-ID: <Z+VoEI9Ep3izRKBJ@lizhi-Precision-Tower-5810>
Date: Thu, 27 Mar 2025 11:00:32 -0400
From: Frank Li <Frank.li@....com>
To: Alexander Stein <alexander.stein@...tq-group.com>
Cc: Shawn Guo <shawnguo@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/7] ARM: dts: ls1021a-tqmals1021a: Add LVDS overlay for
 Tianma TM070JVGH33

On Thu, Mar 27, 2025 at 03:41:10PM +0100, Alexander Stein wrote:
> This adds an overlay for the supported LVDS display tianma tm070jvhg33.
> The on-board RGB-to-LVDS encoder and DCU graphics chain are configured
> accordingly. Add the missing power supply as well.

		      ^^^ missed?

>
> Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>
> ---
>  arch/arm/boot/dts/nxp/ls/Makefile             |  2 +
>  ...tqmls1021a-mbls1021a-lvds-tm070jvhg33.dtso | 47 +++++++++++++++++++
>  .../nxp/ls/ls1021a-tqmls1021a-mbls1021a.dts   |  1 +
>  3 files changed, 50 insertions(+)
>  create mode 100644 arch/arm/boot/dts/nxp/ls/ls1021a-tqmls1021a-mbls1021a-lvds-tm070jvhg33.dtso
>
> diff --git a/arch/arm/boot/dts/nxp/ls/Makefile b/arch/arm/boot/dts/nxp/ls/Makefile
> index 225a7665b8ad1..7f96de6f80224 100644
> --- a/arch/arm/boot/dts/nxp/ls/Makefile
> +++ b/arch/arm/boot/dts/nxp/ls/Makefile
> @@ -8,4 +8,6 @@ dtb-$(CONFIG_SOC_LS1021A) += \
>  	ls1021a-twr.dtb
>
>  ls1021a-tqmls1021a-mbls1021a-hdmi-dtbs += ls1021a-tqmls1021a-mbls1021a.dtb ls1021a-tqmls1021a-mbls1021a-hdmi.dtbo
> +ls1021a-tqmls1021a-mbls1021a-lvds-tm070jvhg33-dtbs += ls1021a-tqmls1021a-mbls1021a.dtb ls1021a-tqmls1021a-mbls1021a-lvds-tm070jvhg33.dtbo
>  dtb-$(CONFIG_SOC_LS1021A) += ls1021a-tqmls1021a-mbls1021a-hdmi.dtb
> +dtb-$(CONFIG_SOC_LS1021A) += ls1021a-tqmls1021a-mbls1021a-lvds-tm070jvhg33.dtb
> diff --git a/arch/arm/boot/dts/nxp/ls/ls1021a-tqmls1021a-mbls1021a-lvds-tm070jvhg33.dtso b/arch/arm/boot/dts/nxp/ls/ls1021a-tqmls1021a-mbls1021a-lvds-tm070jvhg33.dtso
> new file mode 100644
> index 0000000000000..e9708f3c67403
> --- /dev/null
> +++ b/arch/arm/boot/dts/nxp/ls/ls1021a-tqmls1021a-mbls1021a-lvds-tm070jvhg33.dtso
> @@ -0,0 +1,47 @@
> +// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
> +/*
> + * Copyright 2013-2014 Freescale Semiconductor, Inc.
> + * Copyright 2018-2025 TQ-Systems GmbH <linux@...tq-group.com>,
> + * D-82229 Seefeld, Germany.
> + * Author: Alexander Stein
> + */
> +
> +#include <dt-bindings/gpio/gpio.h>
> +
> +/dts-v1/;
> +/plugin/;
> +
> +&backlight_dcu {
> +	status = "okay";
> +};
> +
> +&dcu {
> +	status = "okay";
> +
> +	port {
> +		dcu_out: endpoint {
> +			remote-endpoint = <&lvds_encoder_in>;
> +		};
> +	};
> +};
> +
> +&display {
> +	compatible = "tianma,tm070jvhg33";
> +	status = "okay";
> +};
> +
> +&lvds_encoder {
> +	status = "okay";
> +};
> +
> +&lvds_encoder_in {
> +	remote-endpoint = <&dcu_out>;
> +};
> +
> +&lvds_encoder_out {
> +	remote-endpoint = <&panel_in>;
> +};
> +
> +&panel_in {
> +	remote-endpoint = <&lvds_encoder_out>;
> +};
> diff --git a/arch/arm/boot/dts/nxp/ls/ls1021a-tqmls1021a-mbls1021a.dts b/arch/arm/boot/dts/nxp/ls/ls1021a-tqmls1021a-mbls1021a.dts
> index 27a55fa638128..80dae0c09542d 100644
> --- a/arch/arm/boot/dts/nxp/ls/ls1021a-tqmls1021a-mbls1021a.dts
> +++ b/arch/arm/boot/dts/nxp/ls/ls1021a-tqmls1021a-mbls1021a.dts
> @@ -147,6 +147,7 @@ hdmi_in: endpoint {
>  	display: panel {
>  		backlight = <&backlight_dcu>;
>  		enable-gpios = <&pca9554_1 3 GPIO_ACTIVE_HIGH>;
> +		power-supply = <&reg_3p3v>;
>  		status = "disabled";
>
>  		port {
> --
> 2.43.0
>