ARM: dts: sun8i: Add touchscreen node for sun8i-a23-polaroid-mid2407pxe03

Add a node enabling the gsl1680 touchscreen controller found on
sun8i-a23-polaroid-mid2407pxe03 tablets.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/sun8i-a23-polaroid-mid2407pxe03.dts b/arch/arm/boot/dts/sun8i-a23-polaroid-mid2407pxe03.dts
index 4789aac89955..6662127c688f 100644
--- a/arch/arm/boot/dts/sun8i-a23-polaroid-mid2407pxe03.dts
+++ b/arch/arm/boot/dts/sun8i-a23-polaroid-mid2407pxe03.dts
@@ -90,3 +90,22 @@
                 allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
         };
 };
+
+&reg_ldo_io1 {
+        regulator-min-microvolt = <3300000>;
+        regulator-max-microvolt = <3300000>;
+        regulator-name = "vcc-touchscreen";
+        status = "okay";
+};
+
+&touchscreen {
+        reg = <0x40>;
+        compatible = "silead,gsl1680";
+        firmware-name = "gsl1680-polaroid-mid2407pxe03.fw";
+        touchscreen-size-x = <960>;
+        touchscreen-size-y = <640>;
+        touchscreen-inverted-x;
+        touchscreen-inverted-y;
+        vddio-supply = <&reg_ldo_io1>;
+        status = "okay";
+};