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Commit 6d7bdd32 authored by Sebastian Reichel's avatar Sebastian Reichel Committed by Tony Lindgren
Browse files

ARM: dts: omap4-droid4: update touchscreen 



Update the Droid 4 devicetree to properly describe the reset
GPIO. Also rename the node to touchscreen instead of tsp,
which seems to be commonly used for touchscreens.

Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent f88bf4fc

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

+6 −16
Original line number Diff line number Diff line
@@ -124,13 +124,6 @@ 
};



&gpio6 {

	touchscreen_reset {

		gpio-hog;

		gpios = <13 0>;

		output-high;

		line-name = "touchscreen-reset";

	};



	pwm8: dmtimer-pwm-8 {

		pinctrl-names = "default";

		pinctrl-0 = <&vibrator_direction_pin>;
@@ -362,22 +355,18 @@ 
	};

};



/*

 * REVISIT: Add gpio173 reset pin handling to the driver, see gpio-hog above.

 * If the GPIO reset is used, we probably need to have /lib/firmware/maxtouch.fw

 * available. See "mxt-app" and "droid4-touchscreen-firmware" tools for more

 * information.

 */

&i2c2 {

	tsp@4a {

	touchscreen@4a {

		compatible = "atmel,maxtouch";

		reg = <0x4a>;

		pinctrl-names = "default";

		pinctrl-0 = <&touchscreen_pins>;



		reset-gpios = <&gpio6 13 GPIO_ACTIVE_HIGH>; /* gpio173 */



		/* gpio_183 with sys_nirq2 pad as wakeup */

		interrupts-extended = <&gpio6 23 IRQ_TYPE_EDGE_FALLING

				       &omap4_pmx_core 0x160>;

		interrupts-extended = <&gpio6 23 IRQ_TYPE_EDGE_FALLING>,

				      <&omap4_pmx_core 0x160>;

		interrupt-names = "irq", "wakeup";

		wakeup-source;

	};
@@ -435,6 +424,7 @@ 


	touchscreen_pins: pinmux_touchscreen_pins {

		pinctrl-single,pins = <

		OMAP4_IOPAD(0x180, PIN_OUTPUT | MUX_MODE3)

		OMAP4_IOPAD(0x1a0, PIN_INPUT_PULLUP | MUX_MODE3)

		>;

	};