[PATCH 7/9] dt-bindings: i2c: i2c-rk3x: Allow use of a power-domain

[Jonas Karlman]

The I2C controllers in most Rockchip SoCs are part or power domains that
are always powered on, i.e. PD_BUS or PD_PMU.

On RK3528 the I2C controllers are spread out among the PD_RKVENC, PD_VO
and PD_VPU power domains.

Add support to describe power-domains for the I2C controllers.

Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
---
 Documentation/devicetree/bindings/i2c/i2c-rk3x.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-rk3x.yaml b/Documentation/devicetree/bindings/i2c/i2c-rk3x.yaml
index 2f1e97969c3f..4ac5a40a3886 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-rk3x.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-rk3x.yaml
@@ -105,6 +105,9 @@ properties:
       (t(f) in the I2C specification). If not specified we will use the SCL
       value since they are the same in nearly all cases.
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg
-- 
2.49.0