linux-kernel - Re: [PATCH 6/7] ARM: dts: ls1021a-tqmals1021a: Add overlay for CDTech DC44 RGB display

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Message-ID: <Z+VoxVoRVKM3dMAC@lizhi-Precision-Tower-5810>
Date: Thu, 27 Mar 2025 11:03:33 -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 6/7] ARM: dts: ls1021a-tqmals1021a: Add overlay for
 CDTech DC44 RGB display

On Thu, Mar 27, 2025 at 03:41:12PM +0100, Alexander Stein wrote:
> This adds an overlay for the supported RGB display CDTech DC44.
> DCU graphics chain is configured accordingly.
>
> Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>

Reviewed-by: Frank Li <Frank.Li@....com>

> ---
>  arch/arm/boot/dts/nxp/ls/Makefile             |  2 +
>  ...-tqmls1021a-mbls1021a-rgb-cdtech-dc44.dtso | 55 +++++++++++++++++++
>  2 files changed, 57 insertions(+)
>  create mode 100644 arch/arm/boot/dts/nxp/ls/ls1021a-tqmls1021a-mbls1021a-rgb-cdtech-dc44.dtso
>
> diff --git a/arch/arm/boot/dts/nxp/ls/Makefile b/arch/arm/boot/dts/nxp/ls/Makefile
> index 7b97b718ebc16..53240b04c9688 100644
> --- a/arch/arm/boot/dts/nxp/ls/Makefile
> +++ b/arch/arm/boot/dts/nxp/ls/Makefile
> @@ -9,7 +9,9 @@ dtb-$(CONFIG_SOC_LS1021A) += \
>
>  ls1021a-tqmls1021a-mbls1021a-hdmi-dtbs += ls1021a-tqmls1021a-mbls1021a.dtb ls1021a-tqmls1021a-mbls1021a-hdmi.dtbo
>  ls1021a-tqmls1021a-mbls1021a-lvds-tm070jvhg33-dtbs += ls1021a-tqmls1021a-mbls1021a.dtb ls1021a-tqmls1021a-mbls1021a-lvds-tm070jvhg33.dtbo
> +ls1021a-tqmls1021a-mbls1021a-rgb-cdtech-dc44-dtbs += ls1021a-tqmls1021a-mbls1021a.dtb ls1021a-tqmls1021a-mbls1021a-rgb-cdtech-dc44.dtbo
>  ls1021a-tqmls1021a-mbls1021a-rgb-cdtech-fc21-dtbs += ls1021a-tqmls1021a-mbls1021a.dtb ls1021a-tqmls1021a-mbls1021a-rgb-cdtech-fc21.dtbo
>  dtb-$(CONFIG_SOC_LS1021A) += ls1021a-tqmls1021a-mbls1021a-hdmi.dtb
>  dtb-$(CONFIG_SOC_LS1021A) += ls1021a-tqmls1021a-mbls1021a-lvds-tm070jvhg33.dtb
> +dtb-$(CONFIG_SOC_LS1021A) += ls1021a-tqmls1021a-mbls1021a-rgb-cdtech-dc44.dtb
>  dtb-$(CONFIG_SOC_LS1021A) += ls1021a-tqmls1021a-mbls1021a-rgb-cdtech-fc21.dtb
> diff --git a/arch/arm/boot/dts/nxp/ls/ls1021a-tqmls1021a-mbls1021a-rgb-cdtech-dc44.dtso b/arch/arm/boot/dts/nxp/ls/ls1021a-tqmls1021a-mbls1021a-rgb-cdtech-dc44.dtso
> new file mode 100644
> index 0000000000000..146d45601f693
> --- /dev/null
> +++ b/arch/arm/boot/dts/nxp/ls/ls1021a-tqmls1021a-mbls1021a-rgb-cdtech-dc44.dtso
> @@ -0,0 +1,55 @@
> +// 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>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +/dts-v1/;
> +/plugin/;
> +
> +&backlight_dcu {
> +	status = "okay";
> +};
> +
> +&dcu {
> +	status = "okay";
> +
> +	port {
> +		dcu_out: endpoint {
> +			remote-endpoint = <&panel_in>;
> +		};
> +	};
> +};
> +
> +&display {
> +	compatible = "cdtech,s070swv29hg-dc44";
> +	status = "okay";
> +};
> +
> +&i2c0 {
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +
> +	polytouch: touchscreen@38 {
> +		compatible = "edt,edt-ft5406", "edt,edt-ft5x06";
> +		reg = <0x38>;
> +		interrupt-parent = <&pca9554_0>;
> +		interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
> +		/* LCD_PWR_EN -> TSC_WAKE */
> +		wake-gpios = <&pca9554_1 4 GPIO_ACTIVE_HIGH>;
> +		iovcc-supply = <&reg_3p3v>;
> +		vcc-supply = <&reg_3p3v>;
> +		gain = <20>;
> +		touchscreen-size-x = <800>;
> +		touchscreen-size-y = <480>;
> +	};
> +};
> +
> +&panel_in {
> +	remote-endpoint = <&dcu_out>;
> +};
> --
> 2.43.0
>