Commit 752ddcd2 authored by Marcel Ziswiler's avatar Marcel Ziswiler Committed by Shawn Guo
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ARM: dts: colibri-imx6: improve wake-up with gpio key 



The pin GPIO2_IO22 externally pulls down, it is required to sequentially
connect this pin (signal WAKE_MICO#) to +3v3 and then disconnect it to
trigger a wakeup interrupt.
Adding the flag GPIO_PULL_DOWN allows the system to be woken up just
connecting the pin GPIO2_IO22 to +3v3.

Signed-off-by: default avatarMarcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 9a1bee3f

arch/arm/boot/dts/imx6qdl-colibri.dtsi

+1 −1
Original line number Diff line number Diff line
@@ -38,7 +38,7 @@ 


		wakeup {

			debounce-interval = <10>;

			gpios = <&gpio2 22 GPIO_ACTIVE_HIGH>; /* SODIMM 45 */

			gpios = <&gpio2 22 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>; /* SODIMM 45 */

			label = "Wake-Up";

			linux,code = <KEY_WAKEUP>;

			wakeup-source;