On Sat, Nov 19, 2022 at 06:24:36PM -0300, Fabio Estevam wrote:
> From: Fabio Estevam <festevam@xxxxxxx>
>
> The following build warning is seen when running:
> make dtbs_check DT_SCHEMA_FILES=fsl-imx-uart.yaml
>
> arch/arm/boot/dts/imx6dl-gw560x.dtb: serial@2020000: rts-gpios: False schema does not allow [[20, 1, 0]]
> From schema: Documentation/devicetree/bindings/serial/fsl-imx-uart.yaml
>
> The imx6qdl-gw560x board does not expose the UART RTS and CTS
> as native pins, so 'uart-has-rtscts' should not be used.
>
> Fix the problem by removing the 'uart-has-rtscts' property.
>
> Fixes: b8a559feffb2 ("ARM: dts: imx: add Gateworks Ventana GW5600 support")
> Signed-off-by: Fabio Estevam <festevam@xxxxxxx>
> ---
> Hi,
>
> My understanding is that uart-has-rtscts indicates that the UART RTS
> and CTS pins are used natively and we cannot use uart-has-rtscts with
> rts-gpios.
>
> If this is correct, then I can also submit a patch fixing the arm64 Gateworks
> boards too.
Tim,
Any comments?
Shawn
>
> arch/arm/boot/dts/imx6qdl-gw560x.dtsi | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/imx6qdl-gw560x.dtsi b/arch/arm/boot/dts/imx6qdl-gw560x.dtsi
> index 4bc4371e6bae..4b81a975c979 100644
> --- a/arch/arm/boot/dts/imx6qdl-gw560x.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-gw560x.dtsi
> @@ -632,7 +632,6 @@ &ssi1 {
> &uart1 {
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_uart1>;
> - uart-has-rtscts;
> rts-gpios = <&gpio7 1 GPIO_ACTIVE_HIGH>;
> status = "okay";
> };
> --
> 2.25.1
>
