linux-kernel - Re: [PATCH v4 7/9] arm64: dts: freescale: Add the BOE av101hdt-a10 variant of the Moduline Displayy

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Message-ID: <Z+2RZGGkhkxMOEQI@lizhi-Precision-Tower-5810>
Date: Wed, 2 Apr 2025 15:35:00 -0400
From: Frank Li <Frank.li@....com>
To: maudspierings@...ontroll.com
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>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 7/9] arm64: dts: freescale: Add the BOE av101hdt-a10
 variant of the Moduline Displayy

On Wed, Apr 02, 2025 at 09:07:10AM +0200, Maud Spierings via B4 Relay wrote:
> From: Maud Spierings <maudspierings@...ontroll.com>
>
> Add the BOE av101hdt-a10 variant of the Moduline Display, this variant
> comes with a 10.1 1280x720 display with a touchscreen (not working in
> mainline).
>
> Signed-off-by: Maud Spierings <maudspierings@...ontroll.com>
>
> ---
> Currently the backlight driver is not available, this will be upstreamed
> in a future patch series. It is a Maxim max25014atg.
>
> The touchscreen has a Cypress CYAT81658-64AS48 controller which as far as
> I know is not supported upstream, the driver we currently use for this is
> a mess and I doubt we will be able to get it in an upstreamable state.
> ---
>  ...x8p-ml81-moduline-display-106-av101hdt-a10.dtso | 102 +++++++++++++++++++++
>  1 file changed, 102 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106-av101hdt-a10.dtso b/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106-av101hdt-a10.dtso
> new file mode 100644
> index 0000000000000000000000000000000000000000..2855d7090988380ca0d4df8459cd1a67049f1080
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-tx8p-ml81-moduline-display-106-av101hdt-a10.dtso
> @@ -0,0 +1,102 @@
> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> +/*
> + * Copyright 2025 GOcontroll B.V.
> + * Author: Maud Spierings <maudspierings@...ontroll.com>
> + */
> +
> +#include <dt-bindings/clock/imx8mp-clock.h>
> +#include <dt-bindings/gpio/gpio.h>
> +
> +#include "imx8mp-pinfunc.h"
> +
> +/dts-v1/;
> +/plugin/;
> +
> +/ {
> +	model = "GOcontroll Moduline Display with BOE av101hdt-a10 display";
> +
> +	panel {
> +		compatible = "boe,av101hdt-a10";
> +		enable-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
> +		pinctrl-0 = <&pinctrl_panel>;
> +		pinctrl-names = "default";
> +		power-supply = <&reg_3v3_per>;
> +		reset-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
> +
> +		port {
> +			panel_lvds_in: endpoint {
> +				remote-endpoint = <&ldb_lvds_ch0>;
> +			};
> +		};
> +	};
> +
> +	reg_vbus: regulator-vbus {
> +		compatible = "regulator-fixed";
> +		power-supply = <&reg_6v4>;
> +		regulator-always-on;
> +		regulator-max-microvolt = <5000000>;
> +		regulator-min-microvolt = <5000000>;
> +		regulator-name = "usb-c-vbus";
> +	};
> +};
> +
> +&iomuxc {
> +	pinctrl_panel: panelgrp {
> +		fsl,pins = <
> +			MX8MP_IOMUXC_GPIO1_IO07__GPIO1_IO07
> +			MX8MP_DSE_X1
> +			MX8MP_IOMUXC_GPIO1_IO09__GPIO1_IO09
> +			MX8MP_DSE_X1
> +		>;
> +	};
> +};
> +
> +&lcdif2 {
> +	status = "okay";
> +};
> +
> +&lvds_bridge {
> +	assigned-clocks = <&clk IMX8MP_CLK_MEDIA_LDB>, <&clk IMX8MP_VIDEO_PLL1>;
> +	/* IMX8MP_VIDEO_PLL1 = IMX8MP_CLK_MEDIA_DISP2_PIX * 2 * 7 */
> +	assigned-clock-rates = <0>, <1054620000>;
> +	status = "okay";
> +
> +	ports {
> +		port@1 {
> +			ldb_lvds_ch0: endpoint {
> +				remote-endpoint = <&panel_lvds_in>;
> +			};
> +		};
> +	};
> +};
> +
> +&usb3_1 {
> +	status = "okay";
> +};
> +
> +&usb3_phy1 {
> +	status = "okay";
> +};
> +
> +&usb_dwc3_1 {
> +	dr_mode = "host";
> +
> +	connector {
> +		compatible = "usb-c-connector";
> +		data-role = "host";
> +		pd-disable;
> +		vbus-supply = <&reg_vbus>;
> +
> +		port {
> +			high_speed_ep: endpoint {
> +				remote-endpoint = <&usb1_hs_ep>;
> +			};
> +		};
> +	};
> +
> +	port {
> +		usb1_hs_ep: endpoint {
> +			remote-endpoint = <&high_speed_ep>;
> +		};
> +	};
> +};

why need enable usb3 in overlay file, I suppose it should be already enabled
at base dtb file.

Frank
>
> --
> 2.49.0
>
>