From c1289b6fe3aeb40a48da4b1b6035263b2b73af06 Mon Sep 17 00:00:00 2001 From: Annette Kobou Date: Tue, 8 Jul 2025 14:24:41 +0200 Subject: [PATCH] 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 Signed-off-by: Frieder Schrempf Fixes: 1ea4b76cdfde ("ARM: dts: imx6ul-kontron-n6310: Add Kontron i.MX6UL N6310 SoM and boards") Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- arch/arm/boot/dts/imx6ul-kontron-n6310-s.dts | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6ul-kontron-n6310-s.dts b/arch/arm/boot/dts/imx6ul-kontron-n6310-s.dts index 4e99e6c79a68..9b347029c2f6 100644 --- a/arch/arm/boot/dts/imx6ul-kontron-n6310-s.dts +++ b/arch/arm/boot/dts/imx6ul-kontron-n6310-s.dts @@ -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"; };