diff options
| author | Rudraksha Gupta <guptarud@gmail.com> | 2026-05-27 19:13:41 -0700 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2026-07-07 21:41:41 -0500 |
| commit | 346e9112f3dab91a5cf3100a99ec256ff0b7f0fe (patch) | |
| tree | 231142f142784048b97ed34ae6b2ad37e5755503 | |
| parent | 28236bb8f50216fe98f895b31d593e8d8ddb8a27 (diff) | |
ARM: dts: qcom: msm8960: expressatt: Add coreriver,tc360-touchkey
Add the tc360 touchkey. It's unknown if this is the actual model of the
touchkey, as downstream doesn't mention a variant, but this works.
Link:
https://github.com/LineageOS/android_kernel_samsung_d2/blob/stable/cm-12.0-YNG4N/drivers/input/keyboard/cypress_touchkey_236/Makefile#L5
Assisted-by: Claude:claude-opus-4.6
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Rudraksha Gupta <guptarud@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://github.com/LineageOS/android_kernel_samsung_d2/blob/stable/cm-12.0-YNG4N/drivers/input/keyboard/cypress_touchkey_236/Makefile#L5
Link: https://lore.kernel.org/r/20260527-expressatt-touchkey-v2-1-049dca41fc3a@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
| -rw-r--r-- | arch/arm/boot/dts/qcom/qcom-msm8960-samsung-expressatt.dts | 54 |
1 files changed, 54 insertions, 0 deletions
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 5a39abd6f3ce..5a3d88e31cf5 100644 --- a/arch/arm/boot/dts/qcom/qcom-msm8960-samsung-expressatt.dts +++ b/arch/arm/boot/dts/qcom/qcom-msm8960-samsung-expressatt.dts @@ -52,6 +52,40 @@ linux,code = <KEY_VOLUMEDOWN>; }; }; + + touchkey_enable: touchkey-enable { + compatible = "regulator-fixed"; + regulator-name = "touchkey_enable"; + gpio = <&tlmm 51 GPIO_ACTIVE_HIGH>; + enable-active-high; + regulator-boot-on; + }; + + i2c-gpio-touchkey { + compatible = "i2c-gpio"; + #address-cells = <1>; + #size-cells = <0>; + sda-gpios = <&tlmm 71 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + scl-gpios = <&tlmm 72 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + pinctrl-0 = <&touchkey_i2c_pins>; + pinctrl-names = "default"; + i2c-gpio,delay-us = <2>; + + touchkey@20 { + compatible = "coreriver,tc360-touchkey"; + reg = <0x20>; + + interrupts-extended = <&tlmm 52 IRQ_TYPE_EDGE_FALLING>; + pinctrl-0 = <&touchkey_irq_pin>; + pinctrl-names = "default"; + + vddio-supply = <&touchkey_enable>; + vdd-supply = <&pm8921_l29>; + vcc-supply = <&pm8921_l29>; + + linux,keycodes = <KEY_MENU KEY_BACK>; + }; + }; }; &gsbi2 { @@ -198,6 +232,20 @@ bias-disable; }; }; + + touchkey_i2c_pins: touchkey-i2c-state { + pins = "gpio71", "gpio72"; + function = "gpio"; + drive-strength = <2>; + bias-disable; + }; + + touchkey_irq_pin: touchkey-irq-state { + pins = "gpio52"; + function = "gpio"; + drive-strength = <2>; + bias-disable; + }; }; &pm8921 { @@ -420,6 +468,12 @@ bias-pull-down; }; + pm8921_l29: l29 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + bias-pull-down; + }; + /* Low Voltage Switch */ pm8921_lvs1: lvs1 { bias-pull-down; |