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

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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: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Sjoerd Simons 2014-09-14 01:33:15 +09:00 committed by Kukjin Kim
parent 8be6a6d04c
commit 6a9e7318f2
1 changed files with 29 additions and 0 deletions
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29
arch/arm/boot/dts/exynos5420-peach-pit.dts
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@ -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>;