From d5b9b22f7b070a422b630421fdcefade5bf577a5 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@amd.com>
Date: Wed, 11 May 2022 11:52:53 +0200
Subject: [PATCH] arm64: zynqmp: Add linux,code for fwuen button
BTN_MISC looks like the most reasonable option for this button.
Button is used by firmware to indicate (after reset, power up) that user
wants to do firmware upgrade via firmware update utility.
For bootloader or OS is this just user button which is worth to have it
mapped.
Also button can be used as a wakeup source and pressing it for more time
can generate more chars that's why also adding wakeup-source and autorepeat
properties.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Link: https://lore.kernel.org/r/7f6d627473632c3c3036ec9f6aaa36e00f4615e2.1652262769.git.michal.simek@amd.com
---
arch/arm/dts/zynqmp-sm-k26-revA.dts | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/dts/zynqmp-sm-k26-revA.dts b/arch/arm/dts/zynqmp-sm-k26-revA.dts
index 35fab91517..7c2bfa395d 100644
--- a/arch/arm/dts/zynqmp-sm-k26-revA.dts
+++ b/arch/arm/dts/zynqmp-sm-k26-revA.dts
@@ -56,6 +56,9 @@
fwuen {
label = "fwuen";
gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+ linux,code = <BTN_MISC>;
+ wakeup-source;
+ autorepeat;
};
};
--
2.39.5