| Message ID | 20250307171036.7276-1-johan+linaro@kernel.org |
|---|---|
| State | New |
| Headers | show |
| Series | arm64: dts: qcom: sc8280xp-crd: add support for volume-up key | expand |
On 7.03.2025 6:10 PM, Johan Hovold wrote: > Add support for the keypad volume-up key on the debug extension board. > > This is useful to have when testing PMIC interrupt handling, and the key > can also be used to wake up from deep suspend states (CX shutdown). > > Signed-off-by: Johan Hovold <johan+linaro@kernel.org> I'm lukewarm about this since there is no "actual" button for that. Does the power button not work here? If systemd induces a shutdown, try setting HandlePowerKey=ignore in /etc/systemd/logind.conf Konrad
diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts index 75adaa19d1c3..8badf7f49b95 100644 --- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts +++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts @@ -37,6 +37,20 @@ chosen { stdout-path = "serial0:115200n8"; }; + gpio-keys { + compatible = "gpio-keys"; + + pinctrl-0 = <&kypd_vol_up_n>; + pinctrl-names = "default"; + + key-vol-up { + label = "volume_up"; + gpios = <&pmc8280_1_gpios 6 GPIO_ACTIVE_LOW>; + linux,code = <KEY_VOLUMEUP>; + wakeup-source; + }; + }; + pmic-glink { compatible = "qcom,sc8280xp-pmic-glink", "qcom,pmic-glink"; @@ -885,6 +899,14 @@ edp_bl_reg_en: edp-bl-reg-en-state { function = "normal"; }; + kypd_vol_up_n: kypd-vol-up-n-state { + pins = "gpio6"; + function = "normal"; + power-source = <0>; /* 3.3 V */ + bias-pull-up; + input-enable; + }; + misc_3p3_reg_en: misc-3p3-reg-en-state { pins = "gpio2"; function = "normal";
Add support for the keypad volume-up key on the debug extension board. This is useful to have when testing PMIC interrupt handling, and the key can also be used to wake up from deep suspend states (CX shutdown). Signed-off-by: Johan Hovold <johan+linaro@kernel.org> --- arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)