| Message ID | 20230330180448.269635-1-lars@metafoo.de |
|---|---|
| State | New |
| Headers | show |
| Series | [1/2] dt-bindings: i2c: cadence: Document reset property | expand |
diff --git a/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml b/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml index 9187015d9702..76e2b9a10de8 100644 --- a/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml +++ b/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml @@ -24,6 +24,9 @@ properties: clocks: minItems: 1 + resets: + maxItems: 1 + interrupts: maxItems: 1
The Cadence I2C controller has an external reset that needs to be de-asserted before the I2C controller can be accessed. Document the `resets` devicetree property that can be used to describe how the reset signal is connected. While the reset signal will always be present in hardware the devicetree property is kept optional for backwards compatibility with existing systems that do not specify the reset property and where the reset signal might not be controlled by operating system. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> --- Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml | 3 +++ 1 file changed, 3 insertions(+)