arch/arm/boot/dts/st/stm32mp15xx-dhcom-picoitx.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/st/stm32mp15xx-dhcom-picoitx.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/st/stm32mp15xx-dhcom-picoitx.dtsi
Extension
.dtsi
Size
2497 bytes
Lines
140
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: configuration, schema, or hardware description
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 BSD-3-Clause
/*
 * Copyright (C) 2020 Marek Vasut <marex@denx.de>
 */

#include <dt-bindings/input/input.h>
#include <dt-bindings/pwm/pwm.h>

/ {
	led {
		compatible = "gpio-leds";

		led-0 {
			label = "yellow:led";
			gpios = <&gpioi 3 GPIO_ACTIVE_HIGH>;
			default-state = "off";
		};
	};
};

&adc {
	status = "disabled";
};

&dac {
	status = "disabled";
};

&fmc {
	status = "disabled";
};

&gpioa {
	/*
	 * NOTE: The USB Port on the PicoITX needs a PWR_EN signal to enable
	 * port power. This signal should be handled by USB power sequencing
	 * in order to turn on port power when USB bus is powered up, but so
	 * far there is no such functionality.
	 */
	usb-port-power-hog {
		gpio-hog;
		gpios = <13 0>;
		output-low;
		line-name = "usb-port-power";
	};
};

&gpioc {
	gpio-line-names = "", "", "", "",
			  "", "", "PicoITX-In1", "",
			  "", "", "", "",
			  "", "", "", "";
};

&gpiod {
	gpio-line-names = "", "", "", "",
			  "", "", "DHCOM-B", "",
			  "", "", "", "PicoITX-Out1",
			  "PicoITX-Out2", "", "", "";
};

&gpiog {
	gpio-line-names = "PicoITX-In2", "", "", "",
			  "", "", "", "",
			  "DHCOM-L", "", "", "",
			  "", "", "", "";
};

&i2c2 {	/* On board-to-board connector (optional) */
	pinctrl-names = "default";

Annotation

Implementation Notes