[PATCH] arm64: dts: qcom: msm8916-samsung-fortuna: Add touchscreen

[Raymond Hackley <raymondhackley@xxxxxxxxxxxxxx>]

From: Joe Mason <buddyjojo06@xxxxxxxxxxx>

Like msm8916-samsung-a3u-eur, the Grand Prime uses a Zinitix BT541
touchscreen. Add it together with the necessary fixed-regulator to the
device tree.

Signed-off-by: Joe Mason <buddyjojo06@xxxxxxxxxxx>
[Raymond: Move to fortuna-common. Use interrupts-extended]
Signed-off-by: Raymond Hackley <raymondhackley@xxxxxxxxxxxxxx>
---
 .../qcom/msm8916-samsung-fortuna-common.dtsi  | 49 +++++++++++++++++++
 .../qcom/msm8916-samsung-rossa-common.dtsi    |  7 +++
 2 files changed, 56 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi b/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi
index c2800ad2dd5b..6fe0a08db08e 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-fortuna-common.dtsi
@@ -66,6 +66,19 @@ reg_motor_vdd: regulator-motor-vdd {
 		pinctrl-0 = <&motor_en_default>;
 		pinctrl-names = "default";
 	};
+
+	reg_vdd_tsp_a: regulator-vdd-tsp-a {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_tsp_a";
+		regulator-min-microvolt = <3000000>;
+		regulator-max-microvolt = <3000000>;
+
+		gpio = <&tlmm 73 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&tsp_en_default>;
+		pinctrl-names = "default";
+	};
 };
 
 &blsp_i2c1 {
@@ -94,6 +107,28 @@ fuel-gauge@35 {
 	};
 };
 
+&blsp_i2c5 {
+	status = "okay";
+
+	touchscreen@20 {
+		compatible = "zinitix,bt541";
+		reg = <0x20>;
+
+		interrupts-extended = <&tlmm 13 IRQ_TYPE_EDGE_FALLING>;
+
+		touchscreen-size-x = <540>;
+		touchscreen-size-y = <960>;
+
+		vcca-supply = <&reg_vdd_tsp_a>;
+		vdd-supply = <&pm8916_l6>;
+
+		pinctrl-0 = <&tsp_int_default>;
+		pinctrl-names = "default";
+
+		linux,keycodes = <KEY_APPSELECT KEY_BACK>;
+	};
+};
+
 &blsp_uart2 {
 	status = "okay";
 };
@@ -200,4 +235,18 @@ sdc2_cd_default: sdc2-cd-default-state {
 		drive-strength = <2>;
 		bias-disable;
 	};
+
+	tsp_en_default: tsp-en-default-state {
+		pins = "gpio73";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	tsp_int_default: tsp-int-default-state {
+		pins = "gpio13";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
 };
diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi b/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi
index 42843771ae2a..ee55c4669e5f 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-rossa-common.dtsi
@@ -14,3 +14,10 @@ muic: extcon@14 {
 		pinctrl-names = "default";
 	};
 };
+
+&blsp_i2c5 {
+	status = "disabled";
+
+	/* Touchscreen varies depending on model variant */
+	/delete-node/ touchscreen@20;
+};
-- 
2.39.2