From: Peter Rosin <peda@axentia.se>
Date: Fri, 8 Oct 2021 22:11:21 +0000 (+0200)
Subject: dt-bindings: iio: io-channel-mux: add optional #io-channel-cells
X-Git-Tag: v6.1-rc5~2728^2~15^2~4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=86477c231c16a41d9b9805ce43c7a140a0dae4c0;p=platform%2Fkernel%2Flinux-starfive.git

dt-bindings: iio: io-channel-mux: add optional #io-channel-cells

Needed for in-kernel use of the child channels of the mux.

Fixes problems like this, reported by dtbs_check:
adc0mux: '#io-channel-cells' does not match any of the regexes: 'pinctrl-[0-9]+'
	arch/arm/boot/dts/aspeed-bmc-ampere-mtjade.dt.yaml

Suggested-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---

diff --git a/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.yaml b/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.yaml
index 5a73280..80b6229 100644
--- a/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.yaml
+++ b/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.yaml
@@ -44,6 +44,9 @@ properties:
     description:
       Time required for analog signals to settle after muxing.
 
+  "#io-channel-cells":
+    const: 1
+
 required:
   - compatible
   - io-channels