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From:   Martin Kepplinger <martin.kepplinger@puri.sm>
To:     robh@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org,
        s.hauer@pengutronix.de, kernel@pengutronix.de
Cc:     linux-imx@nxp.com, Anson.Huang@nxp.com, devicetree@vger.kernel.org,
        kernel@puri.sm, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org,
        "Angus Ainslie (Purism)" <angus@akkea.ca>,
        Martin Kepplinger <martin.kepplinger@puri.sm>
Subject: [PATCH v3 3/8] arm64: dts: librem5-devkit: allow modem to wake the system from suspend
Date:   Mon, 24 Feb 2020 07:29:12 +0100
Message-Id: <20200224062917.4895-4-martin.kepplinger@puri.sm>
In-Reply-To: <20200224062917.4895-1-martin.kepplinger@puri.sm>
References: <20200224062917.4895-1-martin.kepplinger@puri.sm>
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From: "Angus Ainslie (Purism)" <angus@akkea.ca>

Connect the WoWWAN signal to a gpio key to wake up the system from suspend.

Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
---
 .../arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
index ed4a10255bad..66d6b7c6dca7 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
@@ -55,6 +55,15 @@
 			wakeup-source;
 			linux,code = <KEY_HP>;
 		};
+
+		wwan-wake {
+			label = "WWAN_WAKE";
+			gpios = <&gpio3 8 GPIO_ACTIVE_LOW>;
+			interrupt-parent = <&gpio3>;
+			interrupts = <8 GPIO_ACTIVE_LOW>;
+			wakeup-source;
+			linux,code = <KEY_PHONE>;
+		};
 	};
 
 	leds {
@@ -576,6 +585,7 @@
 			MX8MQ_IOMUXC_SAI2_RXFS_GPIO4_IO21	0x16
 			MX8MQ_IOMUXC_SAI2_RXC_GPIO4_IO22	0x16
 			MX8MQ_IOMUXC_SAI5_RXC_GPIO3_IO20	0x180  /* HP_DET */
+			MX8MQ_IOMUXC_NAND_DATA02_GPIO3_IO8	0x80   /* nWoWWAN */
 		>;
 	};
 
-- 
2.20.1