[PATCH 1/4] dt-bindings: iio: adc: Add rockchip,rk3528-saradc variant

[Jonas Karlman]

The Successive Approximation ADC (SARADC) in RK3528 uses the v2
controller and support:
- 10-bit resolution
- Up to 1MS/s sampling rate
- 4 single-ended input channels
- Current consumption: 0.5mA @ 1MS/s

Add a rockchip,rk3562-saradc compatible string for the 4 channels of
10-bit resolution supported by SARADC in RK3528.

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

diff --git a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
index fd93ed3991e0..86eae9672c04 100644
--- a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
@@ -15,6 +15,7 @@ properties:
       - const: rockchip,saradc
       - const: rockchip,rk3066-tsadc
       - const: rockchip,rk3399-saradc
+      - const: rockchip,rk3528-saradc
       - const: rockchip,rk3588-saradc
       - items:
           - const: rockchip,rk3576-saradc
-- 
2.48.1