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SubjectRe: [PATCH v2 4/9] arm64: dts: librem5-devkit: allow modem to wake the system from suspend
On Tue, Feb 18, 2020 at 09:49:37AM +0100, Martin Kepplinger wrote:
> 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 ec12477d925d..9c81b07f43f3 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 {

We prefer to use hyphen over underscore in node name.

Shawn

> + label = "WWAN_WAKE";
> + gpios = <&gpio3 8 GPIO_ACTIVE_LOW>;
> + interrupt-parent = <&gpio3>;
> + interrupts = <8 GPIO_ACTIVE_LOW>;
> + wakeup-source;
> + linux,code = <KEY_PHONE>;
> + };
> };
>
> leds {
> @@ -574,6 +583,7 @@
> 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
>

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