linux-kernel - [PATCH v4 06/21] ARM: dts: imx7-colibri: add GPIO wakeup key

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Date:   Mon, 12 Aug 2019 14:21:23 +0000
From:   Philippe Schenker <philippe.schenker@...adex.com>
To:     Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Max Krummenacher <max.krummenacher@...adex.com>,
        "stefan@...er.ch" <stefan@...er.ch>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Michal Vokáč <michal.vokac@...ft.com>,
        Fabio Estevam <festevam@...il.com>
CC:     Stefan Agner <stefan.agner@...adex.com>,
        Philippe Schenker <philippe.schenker@...adex.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        Sascha Hauer <s.hauer@...gutronix.de>
Subject: [PATCH v4 06/21] ARM: dts: imx7-colibri: add GPIO wakeup key

From: Stefan Agner <stefan.agner@...adex.com>

Add wakeup GPIO key which is able to wake the system from sleep
modes (e.g. Suspend-to-Memory).

Signed-off-by: Stefan Agner <stefan.agner@...adex.com>
Signed-off-by: Philippe Schenker <philippe.schenker@...adex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>

---

Changes in v4:
- Add Marcel Ziswiler's Ack

Changes in v3: None
Changes in v2: None

 arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi | 14 ++++++++++++++
 arch/arm/boot/dts/imx7-colibri.dtsi         |  7 ++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi b/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi
index 3f2746169181..d4dbc4fc1adf 100644
--- a/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi
+++ b/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi
@@ -52,6 +52,20 @@
 		clock-frequency = <16000000>;
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpiokeys>;
+
+		power {
+			label = "Wake-Up";
+			gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
+			linux,code = <KEY_WAKEUP>;
+			debounce-interval = <10>;
+			gpio-key,wakeup;
+		};
+	};
+
 	panel: panel {
 		compatible = "edt,et057090dhu";
 		backlight = <&bl>;
diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi b/arch/arm/boot/dts/imx7-colibri.dtsi
index cab40d22d24e..5347ed38acb2 100644
--- a/arch/arm/boot/dts/imx7-colibri.dtsi
+++ b/arch/arm/boot/dts/imx7-colibri.dtsi
@@ -741,12 +741,17 @@
 
 	pinctrl_gpio_lpsr: gpio1-grp {
 		fsl,pins = <
-			MX7D_PAD_LPSR_GPIO1_IO01__GPIO1_IO1	0x59
 			MX7D_PAD_LPSR_GPIO1_IO02__GPIO1_IO2	0x59
 			MX7D_PAD_LPSR_GPIO1_IO03__GPIO1_IO3	0x59
 		>;
 	};
 
+	pinctrl_gpiokeys: gpiokeysgrp {
+		fsl,pins = <
+			MX7D_PAD_LPSR_GPIO1_IO01__GPIO1_IO1	0x19
+		>;
+	};
+
 	pinctrl_i2c1: i2c1-grp {
 		fsl,pins = <
 			MX7D_PAD_LPSR_GPIO1_IO05__I2C1_SDA	0x4000007f
-- 
2.22.0