[PATCH 6.6 025/204] arm64: tegra: Remove the Orin NX/Nano suspend key

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

6.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ninad Malwade <nmalwade@nvidia.com>

[ Upstream commit bb8a3ad25f098b6ea9b1d0f522427b4ad53a7bba ]

As per the Orin Nano Dev Kit schematic, GPIO_G.02 is not available
on this device family. It should not be used at all on Orin NX/Nano.
Having this unused pin mapped as the suspend key can lead to
unpredictable behavior for low power modes.

Orin NX/Nano uses GPIO_EE.04 as both a "power" button and a "suspend"
button. However, we cannot have two gpio-keys mapped to the same
GPIO. Therefore remove the "suspend" key.

Cc: stable@vger.kernel.org
Fixes: e63472eda5ea ("arm64: tegra: Support Jetson Orin NX reference platform")
Signed-off-by: Ninad Malwade <nmalwade@nvidia.com>
Signed-off-by: Ivy Huang <yijuh@nvidia.com>
Link: https://lore.kernel.org/r/20250206224034.3691397-1-yijuh@nvidia.com
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi
index 39110c1232e0d..db10b4b46cca9 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000.dtsi
@@ -196,13 +196,6 @@ key-power {
 			wakeup-event-action = <EV_ACT_ASSERTED>;
 			wakeup-source;
 		};
-
-		key-suspend {
-			label = "Suspend";
-			gpios = <&gpio TEGRA234_MAIN_GPIO(G, 2) GPIO_ACTIVE_LOW>;
-			linux,input-type = <EV_KEY>;
-			linux,code = <KEY_SLEEP>;
-		};
 	};
 
 	fan: pwm-fan {
-- 
2.39.5