[PATCH RFC v2 5/7] arm64: dts: imx: fix touchscreen reset GPIO polarity

Fabio Estevam festevam at gmail.com
Mon Nov 21 10:18:32 PST 2022


[Adding Angus and David]

On Mon, Nov 21, 2022 at 3:12 PM Quentin Schulz <foss+kernel at 0leil.net> wrote:
>
> From: Quentin Schulz <quentin.schulz at theobroma-systems.com>
>
> The reset line is active low for the Goodix touchscreen controller so
> let's fix the polarity in the Device Tree node.
>
> Signed-off-by: Quentin Schulz <quentin.schulz at theobroma-systems.com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mm-prt8mm.dts         | 2 +-
>  arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-prt8mm.dts b/arch/arm64/boot/dts/freescale/imx8mm-prt8mm.dts
> index 9fbbbb556c0b3..df7e5ae9698e1 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm-prt8mm.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-prt8mm.dts
> @@ -107,7 +107,7 @@ touchscreeen at 5d {
>                 interrupt-parent = <&gpio1>;
>                 interrupts = <8 IRQ_TYPE_NONE>;
>                 irq-gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
> -               reset-gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
> +               reset-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
>         };
>
>         temp-sense at 70 {
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> index 6445c6b90b5bb..b038300812b1e 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> @@ -542,7 +542,7 @@ touchscreen at 5d {
>                 pinctrl-0 = <&pinctrl_ts>;
>                 interrupt-parent = <&gpio3>;
>                 interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> -               reset-gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>;
> +               reset-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
>                 irq-gpios = <&gpio3 0 GPIO_ACTIVE_HIGH>;
>                 touchscreen-size-x = <720>;
>                 touchscreen-size-y = <1440>;
>
> --
> b4 0.10.1



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