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

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Message-ID: <20250518220707.669515-9-jonas@kwiboo.se>
Date: Sun, 18 May 2025 22:06:55 +0000
From: Jonas Karlman <jonas@...boo.se>
To: Heiko Stuebner <heiko@...ech.de>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Jonathan Cameron <jic23@...nel.org>,
	David Lechner <dlechner@...libre.com>,
	Nuno Sá <nuno.sa@...log.com>,
	Andy Shevchenko <andy@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Yao Zi <ziyao@...root.org>,
	Chukun Pan <amadeus@....edu.cn>,
	linux-rockchip@...ts.infradead.org,
	linux-pm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Jonas Karlman <jonas@...boo.se>,
	linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 8/9] dt-bindings: iio: adc: rockchip-saradc: Allow use of a power-domain

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@...boo.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