diff options
| author | Josua Mayer <josua@solid-run.com> | 2024-05-04 13:35:54 +0200 |
|---|---|---|
| committer | Vignesh Raghavendra <vigneshr@ti.com> | 2024-06-12 21:31:27 +0530 |
| commit | 9dcc0e1065f3c40d0b2ad79a858bb4ebaba33167 (patch) | |
| tree | f2ba91d22737c6e761db8ca6265849588bb0eaff /arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts | |
| parent | f3841b6a22f1a7635dc73b94b98596b94d153ed1 (diff) | |
arm64: dts: ti: k3-am642-hummingboard-t: correct rs485 rts polarity
The RS485 transceiver RE (Receiver enable) and DE (Driver enable) are
shorted and connected to both RTS/CTS of the SoC UART.
RE is active-low, DE is active-high.
Remove the "rs485-rts-active-low" flag to match RTS polarity with DE,
and fix communication in both transmit and receive directions.
Fixes: d60483faf914 ("arm64: dts: add description for solidrun am642 som and evaluation board")
Signed-off-by: Josua Mayer <josua@solid-run.com>
Link: https://lore.kernel.org/r/20240504-ti-rs485-rts-v1-1-e88ef1c96f34@solid-run.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Diffstat (limited to 'arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts')
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts index 234d76e4e944..5b5e9eeec5ac 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-hummingboard-t.dts @@ -282,7 +282,6 @@ pinctrl-names = "default"; pinctrl-0 = <&main_uart3_default_pins>; uart-has-rtscts; - rs485-rts-active-low; linux,rs485-enabled-at-boot-time; status = "okay"; }; |