From: Primoz Fiser <primoz.fiser@norik.com>
To: Peter Rosin <peda@axentia.se>,
Jonathan Cameron <jic23@kernel.org>,
David Lechner <dlechner@baylibre.com>,
Nuno Sa <nuno.sa@analog.com>, Andy Shevchenko <andy@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>
Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org, upstream@lists.phytec.de
Subject: [PATCH 1/2] dt-bindings: iio: afe: current-sense-amplifier: Add io-channel-cells
Date: Wed, 3 Sep 2025 13:36:59 +0200 [thread overview]
Message-ID: <20250903113700.3079626-1-primoz.fiser@norik.com> (raw)
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, otherwise the following kernel error
is present:
OF: /iio-hwmon: could not get #io-channel-cells for /current-sense
Also fixes the following dtbs_check warning:
current-sense: '#io-channel-cells' does not match any of the regexes:
'pinctrl-[0-9]+' from schema $id:
http://devicetree.org/schemas/iio/afe/current-sense-amplifier.yaml#
Fixes: fbac26b9ad21 ("dt-bindings:iio:afe:current-sense-amplifier: txt to yaml conversion.")
Signed-off-by: Primoz Fiser <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
next reply other threads:[~2025-09-03 14:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-03 11:36 Primoz Fiser [this message]
2025-09-03 11:37 ` [PATCH 2/2] arm64: dts: freescale: imx93-phyboard-nash: Current sense via iio-hwmon Primoz Fiser
2025-09-04 9:16 ` [PATCH 1/2] dt-bindings: iio: afe: current-sense-amplifier: Add io-channel-cells Krzysztof Kozlowski
2025-09-04 9:17 ` Krzysztof Kozlowski
2025-09-04 10:15 ` Primoz Fiser
2025-09-04 10:44 ` Krzysztof Kozlowski
2025-09-04 11:20 ` Peter Rosin
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