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ARM: dts: qcom: msm8974-klte: Add support for touchkey

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Add support for the touchkey found on the Samsung Galaxy S5. The
touchkey is responsible for handling the application and back buttons
found around the home button.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
Link: https://lore.kernel.org/r/20200920144859.813032-3-iskren.chernev@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Iskren Chernev
2020-09-20 17:48:54 +03:00
committed by Bjorn Andersson
parent 486d499143
commit a193dc521c
1 changed files with 43 additions and 1 deletions
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44
arch/arm/boot/dts/qcom-msm8974-samsung-klte.dts
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@@ -145,7 +145,7 @@ pma8084_l18: l18 {
};
pma8084_l19: l19 {
regulator-min-microvolt = <2900000>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
@@ -203,6 +203,31 @@ pma8084_l27: l27 {
};
};
i2c-gpio-touchkey {
compatible = "i2c-gpio";
#address-cells = <1>;
#size-cells = <0>;
sda-gpios = <&msmgpio 95 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
scl-gpios = <&msmgpio 96 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
pinctrl-names = "default";
pinctrl-0 = <&i2c_touchkey_pins>;
touchkey@20 {
compatible = "cypress,tm2-touchkey";
reg = <0x20>;
interrupt-parent = <&pma8084_gpios>;
interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
pinctrl-names = "default";
pinctrl-0 = <&touchkey_pin>;
vcc-supply = <&max77826_ldo15>;
vdd-supply = <&pma8084_l19>;
linux,keycodes = <KEY_APPSELECT KEY_BACK>;
};
};
/delete-node/ vreg-boost;
};
@@ -268,6 +293,15 @@ mux {
bias-disable;
};
};
i2c_touchkey_pins: i2c-touchkey {
mux {
pins = "gpio95", "gpio96";
function = "gpio";
input-enable;
bias-pull-up;
};
};
};
sdhci@f9824900 {
@@ -418,6 +452,14 @@ gpio_keys_pin_a: gpio-keys-active {
bias-pull-up;
power-source = <PMA8084_GPIO_S4>;
};
touchkey_pin: touchkey-int-pin {
pins = "gpio6";
function = "normal";
bias-disable;
input-enable;
power-source = <PMA8084_GPIO_S4>;
};
};
};
};