From 1b8dc3988dd204aef296047a02364b5ad823f1b4 Mon Sep 17 00:00:00 2001 From: Martin Devera Date: Sun, 28 Mar 2021 17:43:05 +0200 Subject: [PATCH] dt-bindings: serial: Add rx-tx-swap to stm32-usart Add new rx-tx-swap property to allow for RX & TX pin swapping. Reviewed-by: Rob Herring Acked-by: Fabrice Gasnier Signed-off-by: Martin Devera Link: https://lore.kernel.org/r/20210328154306.22674-1-devik@eaxlabs.cz Signed-off-by: Greg Kroah-Hartman --- .../devicetree/bindings/serial/st,stm32-uart.yaml | 29 ++++++++++++++-------- 1 file changed, 19 insertions(+), 10 deletions(-) diff --git a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml index 865be05..c69f846 100644 --- a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml +++ b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml @@ -9,9 +9,6 @@ maintainers: title: STMicroelectronics STM32 USART bindings -allOf: - - $ref: rs485.yaml - properties: compatible: enum: @@ -40,6 +37,8 @@ properties: uart-has-rtscts: true + rx-tx-swap: true + dmas: minItems: 1 maxItems: 2 @@ -66,13 +65,23 @@ properties: linux,rs485-enabled-at-boot-time: true rs485-rx-during-tx: true -if: - required: - - st,hw-flow-ctrl -then: - properties: - cts-gpios: false - rts-gpios: false +allOf: + - $ref: rs485.yaml# + - $ref: serial.yaml# + - if: + required: + - st,hw-flow-ctrl + then: + properties: + cts-gpios: false + rts-gpios: false + - if: + properties: + compatible: + const: st,stm32-uart + then: + properties: + rx-tx-swap: false required: - compatible -- 2.7.4