[PATCH v7 1/2] dt-bindings: serial: Add rx-tx-swap to stm32-usart
From: Martin Devera <hidden>
Date: 2021-03-12 15:40:18
Also in:
linux-devicetree, linux-serial, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest, tty layer and serial drivers · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
Add new rx-tx-swap property to allow for RX & TX pin swapping.
Signed-off-by: Martin Devera <redacted>
Acked-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
---
v7:
- fix yaml linter warning
v6:
- add version changelog
v5:
- yaml fixes based on Rob Herring comments
- add serial.yaml reference
- move compatible from 'then' to 'if'
v3:
- don't allow rx-tx-swap for st,stm32-uart (suggested
by Fabrice Gasnier)
v2:
- change st,swap to rx-tx-swap (suggested by Rob Herring)
---
.../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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