[PATCH 8/9] dt-bindings: iio: adc: rockchip-saradc: Allow use of a power-domain

[Jonas Karlman]

The SARADC controller in most Rockchip SoCs are part or power domains
that are always powered on, i.e. PD_BUS or PD_PERI.

On RK3528 the SARADC controller is part of the PD_VPU power domain.

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

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

diff --git a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
index 41e0c56ef8e3..f776041fd08f 100644
--- a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
@@ -47,6 +47,9 @@ properties:
       - const: saradc
       - const: apb_pclk
 
+  power-domains:
+    maxItems: 1
+
   resets:
     maxItems: 1
 
-- 
2.49.0