From 83f91a7720966a2b78c1ab51baa32b43f8fc5490 Mon Sep 17 00:00:00 2001 From: Christian Hohnstaedt Date: Mon, 13 Apr 2026 07:53:30 +0200 Subject: [PATCH] arm64: dts: k3-am623-pfc-rs485: remove term-gpio Disconnect the gpio from rs485-ioctl This way the BIAS network and termination-resistor configuration work the same way via "gpioset" from the commandline. Now the resistor may be configured without accessing the serial device, which may be blocked by an other user. Signed-off-by: Christian Hohnstaedt --- arch/arm64/boot/dts/ti/k3-am623-pfc-rs485.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/ti/k3-am623-pfc-rs485.dtsi b/arch/arm64/boot/dts/ti/k3-am623-pfc-rs485.dtsi index f6db62c560a5..cd35d0181ff6 100644 --- a/arch/arm64/boot/dts/ti/k3-am623-pfc-rs485.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am623-pfc-rs485.dtsi @@ -30,7 +30,7 @@ &main_uart4 { /* RS485 Interface */ rts-gpios = <&main_gpio0 38 GPIO_ACTIVE_HIGH>; - rs485-term-gpios = <&io_exp_8bit 0 GPIO_ACTIVE_HIGH>; + /* RS485 termination is controlled via GPIO userspace tools */ rs485-rts-active-high; linux,rs485-enabled-at-boot-time; };