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Commit 6a9e7318 authored by Sjoerd Simons's avatar Sjoerd Simons Committed by Kukjin Kim
Browse files

ARM: dts: Add support Atmel touchpad for exynos5420-peach-pit 



The Peach Pit board has an Atmel maXTouch trackpad device.
Add the needed Device Tree nodes to support it.

This Device Tree change is based on the Chrome OS 3.8 tree
but adapted to use the mainline Atmel maXTouch DT binding.

Signed-off-by: default avatarSjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: default avatarJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 8be6a6d0

arch/arm/boot/dts/exynos5420-peach-pit.dts

+29 −0
Original line number Diff line number Diff line
@@ -507,6 +507,28 @@ 
	};

};



&hsi2c_8 {

	status = "okay";

	clock-frequency = <333000>;



	/* Atmel mXT336S */

	trackpad@4b {

		compatible = "atmel,maxtouch";

		reg = <0x4b>;

		interrupt-parent = <&gpx1>;

		interrupts = <1 IRQ_TYPE_EDGE_FALLING>;

		wakeup-source;

		pinctrl-names = "default";

		pinctrl-0 = <&trackpad_irq>;

		linux,gpio-keymap = <KEY_RESERVED

				     KEY_RESERVED

				     KEY_RESERVED	/* GPIO0 */

				     KEY_RESERVED	/* GPIO1 */

				     KEY_RESERVED	/* GPIO2 */

				     BTN_LEFT>;		/* GPIO3 */

	};

};



&hsi2c_9 {

	status = "okay";

	clock-frequency = <400000>;
@@ -591,6 +613,13 @@ 
		samsung,pin-drv = <0>;

	};



	trackpad_irq: trackpad-irq {

		samsung,pins = "gpx1-1";

		samsung,pin-function = <0xf>;

		samsung,pin-pud = <0>;

		samsung,pin-drv = <0>;

	};



	power_key_irq: power-key-irq {

		samsung,pins = "gpx1-2";

		samsung,pin-function = <0>;