arch/arm64/boot/dts/freescale/imx8mp-hummingboard-iiot-panel-lvds-WF70A8SYJHLNGA.dtso

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mp-hummingboard-iiot-panel-lvds-WF70A8SYJHLNGA.dtso

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mp-hummingboard-iiot-panel-lvds-WF70A8SYJHLNGA.dtso
Extension
.dtso
Size
1883 bytes
Lines
98
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: arch/arm64
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright 2025 Josua Mayer <josua@solid-run.com>
 *
 * Overlay for enabling HummingBoard IIoT LVDS connector
 * with Winstar WF70A8SYJHLNGA panel.
 */

/dts-v1/;
/plugin/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>

&{/} {
	lvds_backlight: lvds-backlight {
		compatible = "gpio-backlight";
		gpios = <&tca6408_u37 3 GPIO_ACTIVE_LOW>;
	};

	panel-lvds {
		compatible = "winstar,wf70a8syjhlnga", "panel-lvds";
		backlight = <&lvds_backlight>;
		data-mapping = "vesa-24";
		enable-gpios = <&tca6408_u37 2 GPIO_ACTIVE_HIGH>;
		height-mm = <86>;
		power-supply = <&reg_dsi_panel>;
		reset-gpios = <&tca6408_u37 1 GPIO_ACTIVE_HIGH>;
		width-mm = <154>;

		panel-timing {
			/*
			 * Note: NXP BSP hard-codes 74MHz clock in ldb driver:
			 * drivers/gpu/drm/imx/imx8mp-ldb.c
			 * SolidRun BSP carries patch.
			 */
			clock-frequency = <49500000>;
			de-active = <1>;
			hactive = <1024>;
			hback-porch = <144>;
			hfront-porch = <40>;
			hsync-active = <0>;
			hsync-len = <104>;
			vactive = <600>;
			vback-porch = <11>;
			vfront-porch = <3>;
			vsync-active = <1>;
			vsync-len = <10>;
		};

		port {
			panel_from_lvds: endpoint {
				remote-endpoint = <&ldb_lvds_ch0>;
			};
		};
	};
};

&i2c_lvds {
	#address-cells = <1>;
	#size-cells = <0>;

	touchscreen@41 {
		compatible = "ilitek,ili2130";
		reg = <0x41>;
		interrupts-extended = <&tca6416_u21 13 IRQ_TYPE_LEVEL_LOW>;
		reset-gpios = <&tca6408_u37 6 GPIO_ACTIVE_LOW>;
	};
};

Annotation

Implementation Notes