[RFC PATCH 1/1] arm64: dts: qcom: sdm845-oneplus-common: enable resin/volume down

[Petr Vorel <pvorel@suse.cz>]

OnePlus 6T (fajita) downstream device tree contains volume down GPIO key
and resin. I suppose it is also in OnePlus 6 (enchilada).

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
Hi

reason for RFC:
* Unfortunately untested on the real device.
* OnePlus 6 (enchilada) is nearly identical, but I haven't compared it's
  device tree.
* Other sdm845 based devices just enable resin/volume down key the same
  way. But what confuses me is "gpios = <0xe7 0x05 0x01>;", does it need
  to enable gpios like sm6375-sony-xperia-murray-pdx225.dts in
  795ee50e55f4 ("arm64: dts: qcom: sm6375-pdx225: Add volume down GPIO key") ?

Below is snipped of the OnePlus 6T (fajita) downstream device tree.

Kind regards,
Petr

gpio_keys {
		compatible = "gpio-keys";
		label = "gpio-keys";
		pinctrl-0 = <0x2f7>;
		pinctrl-names = "default";

		vol_down {
				gpios = <0xe7 0x05 0x01>;
				linux,can-disable;
				debounce-interval = <0x0f>;
				label = "volume_down";
				linux,input-type = <0x01>;
				linux,code = <0x72>;
		};

		vol_up {
				gpios = <0xe7 0x06 0x01>;
				linux,can-disable;
				debounce-interval = <0x0f>;
				label = "volume_up";
				linux,input-type = <0x01>;
				gpio-key,wakeup;
				linux,code = <0x73>;
		};

		cam_focus {
				status = "disabled";
		};

		hallsensor_key {
				gpios = <0x34 0x7c 0x01>;
				debounce-interval = <0x0f>;
				interrupt-parent = <0x34>;
				interrupts = <0x7c 0x00>;
				label = "hallsensor_key";
				linux,input-type = <0x05>;
				gpio-key,wakeup;
				linux,code = <0x00>;
		};

		cam_snapshot {
				status = "disabled";
		};
};

...
qcom,power-on@800 {
		qcom,system-reset;
		compatible = "qcom,qpnp-power-on";
		qcom,pon-dbc-delay = <0x3d09>;
		interrupts = <0x00 0x08 0x00 0x00 0x00 0x08 0x01 0x00 0x00 0x08 0x04 0x00 0x00 0x08 0x05 0x00>;
		qcom,kpdpwr-sw-debounce;
		reg = <0x800 0x100>;
		interrupt-names = "kpdpwr\0resin\0resin-bark\0kpdpwr-resin-bark";
		qcom,store-hard-reset-reason;

		qcom,pon_1 {
				qcom,support-reset = <0x00>;
				qcom,pull-up = <0x01>;
				qcom,pon-type = <0x00>;
				linux,code = <0x74>;
		};

		qcom,pon_2 {
				qcom,pull-up = <0x01>;
				qcom,pon-type = <0x01>;
				linux,code = <0x72>;
		};

 arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
index 46e25c53829a..6cb074de7696 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
@@ -847,6 +847,11 @@ speaker_default: speaker-default-state {
 	};
 };
 
+&pm8998_resin {
+	linux,code = <KEY_VOLUMEDOWN>;
+	status = "okay";
+};
+
 &venus {
 	status = "okay";
 	firmware-name = "qcom/sdm845/oneplus6/venus.mbn";
-- 
2.45.2