Re: [PATCH v1 10/12] arm64: dts: librem5-devkit: configure VSELECT

From: Shawn Guo
Date: Sun Feb 16 2020 - 23:09:55 EST


On Wed, Feb 05, 2020 at 03:30:01PM +0100, Martin Kepplinger wrote:
> From: "Angus Ainslie (Purism)" <angus@xxxxxxxx>
>
> use vselect to set the io voltage to 1.8V
>
> Signed-off-by: Angus Ainslie (Purism) <angus@xxxxxxxx>
> ---
> arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> index fbc7062c4633..8f920c554ebd 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> @@ -789,6 +789,7 @@
> MX8MQ_IOMUXC_SD2_DATA1_USDHC2_DATA1 0xc3
> MX8MQ_IOMUXC_SD2_DATA2_USDHC2_DATA2 0xc3
> MX8MQ_IOMUXC_SD2_DATA3_USDHC2_DATA3 0xc3
> + MX8MQ_IOMUXC_GPIO1_IO04_GPIO1_IO4 0xc1

How is the pin working without a pinctrl handle pointing it?

Shawn

> >;
> };
>
> @@ -800,6 +801,7 @@
> MX8MQ_IOMUXC_SD2_DATA1_USDHC2_DATA1 0xcd
> MX8MQ_IOMUXC_SD2_DATA2_USDHC2_DATA2 0xcd
> MX8MQ_IOMUXC_SD2_DATA3_USDHC2_DATA3 0xcd
> + MX8MQ_IOMUXC_GPIO1_IO04_GPIO1_IO4 0xc1
> >;
> };
>
> @@ -811,6 +813,7 @@
> MX8MQ_IOMUXC_SD2_DATA1_USDHC2_DATA1 0xcf
> MX8MQ_IOMUXC_SD2_DATA2_USDHC2_DATA2 0xcf
> MX8MQ_IOMUXC_SD2_DATA3_USDHC2_DATA3 0xcf
> + MX8MQ_IOMUXC_GPIO1_IO04_GPIO1_IO4 0xc1
> >;
> };
>
> --
> 2.20.1
>