[PATCH 2/2] arm64: tegra: Enable GPIO keys on Jetson AGX Thor

[Thierry Reding]

From: Thierry Reding <treding@xxxxxxxxxx>

The power and force-recovery keys are mapped to standard GPIOs so they
can be enabled for all derived boards. In addition, the power key can be
used to wake the system from sleep, so it needs to be marked as a wakeup
source.

Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
 .../boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi | 23 ++++++++++++++++++++++
 arch/arm64/boot/dts/nvidia/tegra264.dtsi           |  1 +
 2 files changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
index 45f8df9bbfd6..c4ba3322ed9a 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
@@ -1,5 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
 
+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/input/gpio-keys.h>
+
 / {
 	aliases {
 		serial0 = &{/bus@0/serial@c4e0000};
@@ -9,4 +12,24 @@ aliases {
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		key-force-recovery {
+			label = "Force Recovery";
+			gpios = <&gpio_aon TEGRA264_AON_GPIO(EE, 1) GPIO_ACTIVE_LOW>;
+			linux,input-type = <EV_KEY>;
+			linux,code = <KEY_SLEEP>;
+		};
+
+		key-power {
+			label = "Power";
+			gpios = <&gpio_aon TEGRA264_AON_GPIO(AA, 5) GPIO_ACTIVE_LOW>;
+			linux,input-type = <EV_KEY>;
+			linux,code = <KEY_POWER>;
+			wakeup-event-action = <EV_ACT_ASSERTED>;
+			wakeup-source;
+		};
+	};
 };
diff --git a/arch/arm64/boot/dts/nvidia/tegra264.dtsi b/arch/arm64/boot/dts/nvidia/tegra264.dtsi
index 013228a81723..a1a86022d638 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra264.dtsi
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
 
 #include <dt-bindings/clock/nvidia,tegra264.h>
+#include <dt-bindings/gpio/nvidia,tegra264-gpio.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/mailbox/tegra186-hsp.h>
 #include <dt-bindings/memory/nvidia,tegra264.h>

-- 
2.55.0