dt-bindings: phy: rockchip: naneng-combphy: Add power-domains property

Though isn't described in existing devicetrees, most Rockchip combphys
belong to a specific power-domain of the SoC. Taking RK3588 as example,
combphy 0 and combphy 2 belong to the PD_BUS domain. Document the
power-domains property to allow describing the information correctly
in devicetree.

Signed-off-by: Yao Zi <ziyao@disroot.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250728102947.38984-4-ziyao@disroot.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-naneng-combphy.yaml b/Documentation/devicetree/bindings/phy/phy-rockchip-naneng-combphy.yaml
index 3e101c3c5ea998474621e5cd6a483102a2d4fefc..db293d2fbf1a9d0d14551e7c74e6028e62823138 100644 (file)
--- a/Documentation/devicetree/bindings/phy/phy-rockchip-naneng-combphy.yaml
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-naneng-combphy.yaml
@@ -45,6 +45,9 @@ properties:
   phy-supply:
     description: Single PHY regulator
 
+  power-domains:
+    maxItems: 1
+
   rockchip,enable-ssc:
     type: boolean
     description: