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ARM: dts: Add support Atmel touchpad for exynos5800-peach-pi 

The Peach Pi 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: 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:
Javier Martinez Canillas 2014-09-14 01:33:20 +09:00 committed by Kukjin Kim
parent 6a9e7318f2
commit 132fd5be70
1 changed files with 28 additions and 0 deletions
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28
arch/arm/boot/dts/exynos5800-peach-pi.dts
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@ -505,6 +505,27 @@
};
};
&hsi2c_8 {
status = "okay";
clock-frequency = <333000>;
/* Atmel mXT540S */
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 /* GPIO 0 */
KEY_RESERVED /* GPIO 1 */
BTN_LEFT /* GPIO 2 */
KEY_RESERVED>; /* GPIO 3 */
};
};
&hsi2c_9 {
status = "okay";
clock-frequency = <400000>;
@ -589,6 +610,13 @@
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>;