From d78dd8472e52ecbfe3b37233ce02e6d94dbb57d3 Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Mon, 18 Dec 2023 13:54:42 +0100 Subject: [PATCH] ARM: dts: imx7-mba7: Mark gpio-buttons as wakeup-source I2C expander is capable of generating an IRQ during powersave, so the attached buttons can be used for waking up the system. Signed-off-by: Alexander Stein Signed-off-by: Shawn Guo --- arch/arm/boot/dts/nxp/imx/imx7-mba7.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/boot/dts/nxp/imx/imx7-mba7.dtsi b/arch/arm/boot/dts/nxp/imx/imx7-mba7.dtsi index 2aef830cf1f23..bc5d2e4f0eb1a 100644 --- a/arch/arm/boot/dts/nxp/imx/imx7-mba7.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx7-mba7.dtsi @@ -32,11 +32,18 @@ gpio_buttons: gpio-keys { compatible = "gpio-keys"; + /* + * NOTE: These buttons are attached to a GPIO-expander. + * Enabling wakeup-source, enables wakeup on all inputs. + * If PE_GPIO[3..6] are used as inputs, they cause a + * wakeup as well. + */ button-0 { /* #SWITCH_A */ label = "S11"; linux,code = ; gpios = <&pca9555 13 GPIO_ACTIVE_LOW>; + wakeup-source; }; button-1 { @@ -44,6 +51,7 @@ label = "S12"; linux,code = ; gpios = <&pca9555 14 GPIO_ACTIVE_LOW>; + wakeup-source; }; button-2 { @@ -51,6 +59,7 @@ label = "S13"; linux,code = ; gpios = <&pca9555 15 GPIO_ACTIVE_LOW>; + wakeup-source; }; }; -- 2.30.2