[PATCH 04/13] dt-bindings: serial: samsung: gs101: make reg-io-width required property

Tudor Ambarus
2023-12-14T10:52:57Z

GS101 only allows 32-bit register accesses. When using 8-bit reg
accesses on gs101, a SError Interrupt is raised causing the system
unusable.

Make reg-io-width a required property and expect for it a value of 4.

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
---
Documentation/devicetree/bindings/serial/samsung_uart.yaml | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
index 133259ed3a34..cc896d7e2a3d 100644
--- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml
+++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
@@ -143,6 +143,10 @@ allOf:
then:
required:
- samsung,uart-fifosize
+ - reg-io-width
+ properties:
+ reg-io-width:
+ const: 4

unevaluatedProperties: false

--
2.43.0.472.g3155946c3a-goog