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Message-Id: <20250905065503.3022107-1-primoz.fiser@norik.com>
Date: Fri,  5 Sep 2025 08:55:02 +0200
From: Primoz Fiser <primoz.fiser@...ik.com>
To: Peter Rosin <peda@...ntia.se>,
	Jonathan Cameron <jic23@...nel.org>,
	David Lechner <dlechner@...libre.com>,
	Nuno Sa <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>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>
Cc: linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	upstream@...ts.phytec.de
Subject: [PATCH v2 1/2] dt-bindings: iio: afe: current-sense-amplifier: Add io-channel-cells

The current-sense-amplifier is an IIO provider thus can be referenced by
IIO consumers (via "io-channels" property in consumer device node). Such
provider is required to describe number of cells used in phandle lookup
with "io-channel-cells" property.

Signed-off-by: Primoz Fiser <primoz.fiser@...ik.com>
---
Changes in v2:
- refactor commit msg drop warnings introduced by commit #2
- drop Fixes: tag

Link to v1: https://lore.kernel.org/all/20250903113700.3079626-1-primoz.fiser@norik.com/

 .../devicetree/bindings/iio/afe/current-sense-amplifier.yaml  | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/afe/current-sense-amplifier.yaml b/Documentation/devicetree/bindings/iio/afe/current-sense-amplifier.yaml
index 527501c1d695..bcf4ddcfd13b 100644
--- a/Documentation/devicetree/bindings/iio/afe/current-sense-amplifier.yaml
+++ b/Documentation/devicetree/bindings/iio/afe/current-sense-amplifier.yaml
@@ -24,6 +24,9 @@ properties:
     description: |
       Channel node of a voltage io-channel.
 
+  "#io-channel-cells":
+    const: 0
+
   sense-resistor-micro-ohms:
     description: The sense resistance.
 
@@ -46,6 +49,7 @@ examples:
   - |
     sysi {
         compatible = "current-sense-amplifier";
+        #io-channel-cells = <0>;
         io-channels = <&tiadc 0>;
 
         sense-resistor-micro-ohms = <20000>;
-- 
2.34.1


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