overlays: Add timeout_ms parameter to gpio-poweroff

The timeout_ms parameter specifies in milliseconds how long the kernel waits for power-down before issuing a WARN. The default value is 3000 ms. Signed-off-by: Phil Elwell <phil@raspberrypi.com>
raspberrypi · Mar 3, 2020 · 669e1a0 · 669e1a0
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diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
@@ -821,6 +821,8 @@ Params: gpiopin                 GPIO for signalling (default 26)
         input                   Set if the gpio pin should be configured as
                                 an input.
         export                  Set to export the configured pin to sysfs
+        timeout_ms              Specify (in ms) how long the kernel waits for
+                                power-down before issuing a WARN (default 3000).
 
 
 Name:   gpio-shutdown

diff --git a/arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts b/arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts
@@ -32,5 +32,6 @@
 		active_low =    <&power_ctrl>,"gpios:8";
 		input =         <&power_ctrl>,"input?";
 		export =        <&power_ctrl>,"export?";
+		timeout_ms =    <&power_ctrl>,"timeout-ms:0";
 	};
 };