From: Rudraksha Gupta <guptarud@xxxxxxxxx> Add mXT224S touchscreen Signed-off-by: Rudraksha Gupta <guptarud@xxxxxxxxx> --- .../dts/qcom/qcom-msm8960-samsung-expressatt.dts | 31 +++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) 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 47e0e26ad9f0..af6cc6393d74 100644 --- 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 @@ &gsbi1_spi { 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 @@ gpio_keys_pin_a: gpio-keys-active-state { 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_l16: l16 { }; pm8921_l17: l17 { - regulator-min-microvolt = <1800000>; + regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; bias-pull-down; }; -- 2.43.0