ARM: dts: sun4i: inet97fv2: Enable support for tablet keys

Enable support for the tablet keys which are connected via the lradc.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts b/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
index 309a0daa31cd473db267a63ab1ed13587fdc2362..909fde9edfed32c5d0822da9c2ca5c4fa1776c96 100644 (file)
--- a/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
+++ b/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
@@ -47,6 +47,7 @@
 #include "sunxi-common-regulators.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 
 / {
        model = "INet-97F Rev 02";
@@ -82,6 +83,46 @@
 
 #include "axp209.dtsi"
 
+&lradc {
+       vref-supply = <&reg_ldo2>;
+       status = "okay";
+
+       button@200 {
+               label = "Menu";
+               linux,code = <KEY_MENU>;
+               channel = <0>;
+               voltage = <200000>;
+       };
+
+       button@600 {
+               label = "Volume Up";
+               linux,code = <KEY_VOLUMEUP>;
+               channel = <0>;
+               voltage = <600000>;
+       };
+
+       button@800 {
+               label = "Volume Down";
+               linux,code = <KEY_VOLUMEDOWN>;
+               channel = <0>;
+               voltage = <800000>;
+       };
+
+       button@1000 {
+               label = "Home";
+               linux,code = <KEY_HOMEPAGE>;
+               channel = <0>;
+               voltage = <1000000>;
+       };
+
+       button@1200 {
+               label = "Esc";
+               linux,code = <KEY_ESC>;
+               channel = <0>;
+               voltage = <1200000>;
+       };
+};
+
 &mmc0 {
        pinctrl-names = "default";
        pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;