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Subject[PATCH v5 1/2] dt-bindings: serial: Add rx-tx-swap to stm32-usart
Date
Add new rx-tx-swap property to allow for RX & TX pin swapping.

Signed-off-by: Martin Devera <devik@eaxlabs.cz>
Acked-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
---
.../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 8631678283f9..68a0f3ce8328 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
--
2.11.0
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