arm64: dts: allwinner: a64-oceanic-5205-5inmfd: Enable GT911 CTP

Goodix GT911 CTP is bound with Oceanic 5205 5inMFD board.

The CTP connected to board with,
- SDA, SCK from i2c0
- GPIO-LD0 as AVDD28 supply
- PH4 gpio as interrupt pin
- PH11 gpio as reset pin
- X axis is inverted
- Y axis is inverted

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts
index 6a21545..787ebd8 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5205-5inmfd.dts
@@ -37,6 +37,22 @@
        status = "okay";
 };
 
+&i2c0 {
+       status = "okay";
+
+       touchscreen@5d {
+               compatible = "goodix,gt911";
+               reg = <0x5d>;
+               AVDD28-supply = <&reg_ldo_io0>;                 /* VDD_CTP: GPIO0-LDO */
+               interrupt-parent = <&pio>;
+               interrupts = <7 4 IRQ_TYPE_EDGE_FALLING>;
+               irq-gpios = <&pio 7 4 GPIO_ACTIVE_HIGH>;        /* CTP-INT: PH4 */
+               reset-gpios = <&pio 7 11 GPIO_ACTIVE_HIGH>;     /* CTP-RST: PH11 */
+               touchscreen-inverted-x;
+               touchscreen-inverted-y;
+       };
+};
+
 &mdio {
        ext_rgmii_phy: ethernet-phy@1 {
                compatible = "ethernet-phy-ieee802.3-c22";
@@ -52,6 +68,13 @@
        regulator-name = "vcc-phy";
 };
 
+&reg_ldo_io0 {
+       regulator-min-microvolt = <2800000>;
+       regulator-max-microvolt = <2800000>;
+       regulator-name = "vdd-ctp";
+       status = "okay";
+};
+
 &uart0 {
        pinctrl-names = "default";
        pinctrl-0 = <&uart0_pb_pins>;