arch/arm/boot/dts/ti/omap/omap4-droid4-xt894.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/ti/omap/omap4-droid4-xt894.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/ti/omap/omap4-droid4-xt894.dts
Extension
.dts
Size
3511 bytes
Lines
165
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-only
/dts-v1/;

#include "motorola-mapphone-xt8xx.dtsi"

/ {
	model = "Motorola Droid 4 XT894";
	compatible = "motorola,droid4", "ti,omap4430", "ti,omap4";

	chosen {
		stdout-path = &uart3;
	};

	aliases {
		display0 = &lcd0;
		display1 = &hdmi0;
	};

	gpio_keys {
		compatible = "gpio-keys";

		volume_down {
			label = "Volume Down";
			gpios = <&gpio5 26 GPIO_ACTIVE_LOW>; /* gpio154 */
			linux,code = <KEY_VOLUMEDOWN>;
			linux,can-disable;
			/* Value above 7.95ms for no GPIO hardware debounce */
			debounce-interval = <10>;
		};

		/*
		 * We use pad 0x4a100116 abe_dmic_din3.gpio_122 as the irq instead
		 * of the gpio interrupt to avoid lost events in deeper idle states.
		*/
		slider {
			label = "Keypad Slide";
			interrupts-extended = <&omap4_pmx_core 0xd6>;
			gpios = <&gpio4 26 GPIO_ACTIVE_HIGH>; /* gpio122 */
			linux,input-type = <EV_SW>;
			linux,code = <SW_KEYPAD_SLIDE>;
			linux,can-disable;
			/* Value above 7.95ms for no GPIO hardware debounce */
			debounce-interval = <10>;
		};
	};
};

&keypad {
	keypad,num-rows = <8>;
	keypad,num-columns = <8>;
	linux,keymap = <

	/* Row 1 */
	MATRIX_KEY(0, 2, KEY_1)
	MATRIX_KEY(0, 6, KEY_2)
	MATRIX_KEY(2, 3, KEY_3)
	MATRIX_KEY(0, 7, KEY_4)
	MATRIX_KEY(0, 4, KEY_5)
	MATRIX_KEY(5, 5, KEY_6)
	MATRIX_KEY(0, 1, KEY_7)
	MATRIX_KEY(0, 5, KEY_8)
	MATRIX_KEY(0, 0, KEY_9)
	MATRIX_KEY(1, 6, KEY_0)

	/* Row 2 */
	MATRIX_KEY(3, 4, KEY_APOSTROPHE)
	MATRIX_KEY(7, 6, KEY_Q)
	MATRIX_KEY(7, 7, KEY_W)
	MATRIX_KEY(7, 2, KEY_E)
	MATRIX_KEY(1, 0, KEY_R)

Annotation

Implementation Notes