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Subject[PATCH 3/7] ARM: dts: qcom: msm8974-klte: Add support for touchscreen
Date
Add support for the touchscreen found on the Samsung Galaxy S5.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
---
.../boot/dts/qcom-msm8974-samsung-klte.dts | 54 +++++++++++++++++++
1 file changed, 54 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
index 750e2f261139a..085636f182d01 100644
--- a/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
@@ -284,6 +284,16 @@ cmd-data {
};
};

+ i2c2_pins: i2c2 {
+ mux {
+ pins = "gpio6", "gpio7";
+ function = "blsp_i2c2";
+
+ drive-strength = <2>;
+ bias-disable;
+ };
+ };
+
i2c6_pins: i2c6 {
mux {
pins = "gpio29", "gpio30";
@@ -342,6 +352,42 @@ phy@a {
};
};

+ i2c@f9924000 {
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins>;
+
+ touchscreen@20 {
+ compatible = "syna,rmi4-i2c";
+ reg = <0x20>;
+
+ interrupt-parent = <&pma8084_gpios>;
+ interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
+
+ vdd-supply = <&max77826_ldo13>;
+ vio-supply = <&pma8084_lvs2>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&touch_pin>;
+
+ syna,startup-delay-ms = <100>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rmi4-f01@1 {
+ reg = <0x1>;
+ syna,nosleep-mode = <1>;
+ };
+
+ rmi4-f12@12 {
+ reg = <0x12>;
+ syna,sensor-type = <1>;
+ };
+ };
+ };
+
i2c@f9928000 {
status = "okay";

@@ -460,6 +506,14 @@ touchkey_pin: touchkey-int-pin {
input-enable;
power-source = <PMA8084_GPIO_S4>;
};
+
+ touch_pin: touchscreen-int-pin {
+ pins = "gpio8";
+ function = "normal";
+ bias-disable;
+ input-enable;
+ power-source = <PMA8084_GPIO_S4>;
+ };
};
};
};
--
2.27.0
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