ARM: dts: qcom: msm8960: expressatt: Add mXT224S touchscreen

Add mXT224S touchscreen

Signed-off-by: Rudraksha Gupta <guptarud@gmail.com>
Link: https://lore.kernel.org/r/20240131-expressatt_mxt224s_touchscreen-v2-2-4463ae0414b5@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm/boot/dts/qcom/qcom-msm8960-samsung-expressatt.dts b/arch/arm/boot/dts/qcom/qcom-msm8960-samsung-expressatt.dts
index 47e0e26ad9f05e1306a2f68021e848cc3fe700d3..af6cc6393d740d30f3555825175ea6851d406166 100644 (file)
--- a/arch/arm/boot/dts/qcom/qcom-msm8960-samsung-expressatt.dts
+++ b/arch/arm/boot/dts/qcom/qcom-msm8960-samsung-expressatt.dts
@@ -85,6 +85,27 @@
        status = "okay";
 };
 
+&gsbi3 {
+       qcom,mode = <GSBI_PROT_I2C>;
+       status = "okay";
+};
+
+&gsbi3_i2c {
+       status = "okay";
+
+       // Atmel mXT224S touchscreen
+       touchscreen@4a {
+               compatible = "atmel,maxtouch";
+               reg = <0x4a>;
+               interrupt-parent = <&msmgpio>;
+               interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
+               vdda-supply = <&pm8921_lvs6>;
+               vdd-supply = <&pm8921_l17>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&touchscreen>;
+       };
+};
+
 &msmgpio {
        spi1_default: spi1-default-state {
                mosi-pins {
@@ -123,6 +144,14 @@
                drive-strength = <8>;
                bias-disable;
        };
+
+       touchscreen: touchscreen-int-state {
+               pins = "gpio11";
+               function = "gpio";
+               output-enable;
+               bias-disable;
+               drive-strength = <2>;
+       };
 };
 
 &pm8921 {
@@ -285,7 +314,7 @@
                };
 
                pm8921_l17: l17 {
-                       regulator-min-microvolt = <1800000>;
+                       regulator-min-microvolt = <3300000>;
                        regulator-max-microvolt = <3300000>;
                        bias-pull-down;
                };