[PATCH v2 3/3] arm64: dts: qcom: milos-fairphone-fp6: Add touchscreen

[Luca Weiss]

Add a node for the ESWIN EPH8621 touchscreen connected via SPI and the
pinctrl state for the two GPIOs connected to the touchscreen.

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
Signed-off-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts | 29 +++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts b/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts
index 4b7ae87270ac..498fde3d3d18 100644
--- a/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts
+++ b/arch/arm64/boot/dts/qcom/milos-fairphone-fp6.dts
@@ -983,7 +983,27 @@ &sdhc_2 {
 };
 
 &spi0 {
-	/* Eswin EPH8621 touchscreen @ 0 */
+	status = "okay";
+
+	touchscreen@0 {
+		compatible = "eswin,eph8621";
+		reg = <0>;
+
+		avdd-supply = <&vreg_l22b>;
+		vddio-supply = <&vreg_l9b>;
+
+		interrupts-extended = <&tlmm 19 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&tlmm 20 GPIO_ACTIVE_LOW>;
+
+		pinctrl-0 = <&touchscreen_default>;
+		pinctrl-names = "default";
+
+		spi-max-frequency = <2000000>;
+
+		touchscreen-size-x = <1116>;
+		touchscreen-size-y = <2484>;
+		touchscreen-inverted-x;
+	};
 };
 
 &tlmm {
@@ -991,6 +1011,13 @@ &tlmm {
 			       <13 1>, /* NC */
 			       <63 2>; /* WLAN UART */
 
+	touchscreen_default: touchscreen-default-state {
+		pins = "gpio19", "gpio20";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	sdc2_card_det_n: sdc2-card-det-state {
 		pins = "gpio65";
 		function = "gpio";

-- 
2.55.0