[RFC] ARM: dts: imx6qdl-gw560x: Remove incorrect 'uart-has-rtscts'

[Fabio Estevam <festevam@gmail.com>]

From: Fabio Estevam <festevam@denx.de>

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@denx.de>
---
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.

 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