Unverified Commit e8c19201 authored Jan 14, 2020 by Reto Schneider Committed by Paul Burton Jan 14, 2020

MIPS: ralink: dts: gardena_smart_gateway_mt7688: Limit UART1



The radio module asserts CTS when its RX buffer has 10 bytes left.
Putting just 8 instead of 16 bytes into the UART1 TX buffer on the Linux
side ensures to not overflow the RX buffer on the radio module side.

Signed-off-by: Reto Schneider <reto.schneider@husqvarnagroup.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Paul Burton <paul.burton@mips.com>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: linux-mips@vger.kernel.org

parent a5d193cb

arch/mips/boot/dts/ralink/gardena_smart_gateway_mt7688.dts

+3 −0

Original line number	Diff line number	Diff line
		@@ -177,6 +177,9 @@
		pinctrl-names = "default";
		pinctrl-0 = <&pinmux_i2s_gpio>; /* GPIO0..3 */

		fifo-size = <8>;
		tx-threshold = <8>;

		rts-gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
		cts-gpios = <&gpio 2 GPIO_ACTIVE_LOW>;
		};

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