dt-bindings: i2c: cadence: Describe power-domains property

ZynqMP Cadence I2c IP core has own power domain that's why describe it as
optional property.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/8774dba53cae5508f9f7aa173fbaf814d97898b1.1691047405.git.michal.simek@amd.com
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>

diff --git a/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml b/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml
index ff57c5416ebcb732cb1765738bc3bcdb8ef6ccc9..9f1d35ce1fe8acf7864f47e4a0e1dba0e74342ee 100644 (file)
--- a/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml
+++ b/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml
@@ -48,6 +48,9 @@ properties:
     default: 16
     enum: [2, 4, 8, 16, 32, 64, 128, 256]
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg