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

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Message-ID: <20250227184058.2964204-2-jonas@kwiboo.se>
Date: Thu, 27 Feb 2025 18:40:50 +0000
From: Jonas Karlman <jonas@...boo.se>
To: Heiko Stuebner <heiko@...ech.de>,
	Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Yao Zi <ziyao@...root.org>,
	linux-rockchip@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-iio@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Jonas Karlman <jonas@...boo.se>
Subject: [PATCH 1/4] dt-bindings: iio: adc: Add rockchip,rk3528-saradc variant

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@...boo.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