Commit c1289b6f authored Jul 08, 2025 by Annette Kobou Committed by Greg Kroah-Hartman Aug 28, 2025

ARM: dts: imx6ul-kontron-bl-common: Fix RTS polarity for RS485 interface



[ Upstream commit 47ef5256124fb939d8157b13ca048c902435cf23 ]

The polarity of the DE signal of the transceiver is active-high for
sending. Therefore rs485-rts-active-low is wrong and needs to be
removed to make RS485 transmissions work.

Signed-off-by: Annette Kobou <annette.kobou@kontron.de>
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Fixes: 1ea4b76c ("ARM: dts: imx6ul-kontron-n6310: Add Kontron i.MX6UL N6310 SoM and boards")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent d12d31cd

arch/arm/boot/dts/imx6ul-kontron-n6310-s.dts

+0 −1

Original line number	Diff line number	Diff line
		@@ -168,7 +168,6 @@
		pinctrl-0 = <&pinctrl_uart2>;
		linux,rs485-enabled-at-boot-time;
		rs485-rx-during-tx;
		rs485-rts-active-low;
		uart-has-rtscts;
		status = "okay";
		};