linux-kernel - Re: [PATCH] dt-bindings: iio: adc: sd-modulator: fix io-channel-cells

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Date:   Fri, 23 Feb 2018 14:46:19 +0100
From:   Arnaud Pouliquen <arnaud.pouliquen@...com>
To:     Fabrice Gasnier <fabrice.gasnier@...com>, <jic23@...nel.org>,
        <robh+dt@...nel.org>
CC:     <linux@...linux.org.uk>, <mark.rutland@....com>,
        <mcoquelin.stm32@...il.com>, <alexandre.torgue@...com>,
        <lars@...afoo.de>, <knaack.h@....de>, <pmeerw@...erw.net>,
        <linux-iio@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <benjamin.gaignard@...aro.org>
Subject: Re: [PATCH] dt-bindings: iio: adc: sd-modulator: fix io-channel-cells

Hello,

Acked-by: Arnaud Pouliquen <arnaud.pouliquen@...com>

Regards,
Arnaud

On 02/23/2018 12:07 PM, Fabrice Gasnier wrote:
> io-channel-cells should be <0> since sigma delta modulator exports only
> one channel, as described in ../iio/iio-bindings.txt "IIO providers"
> section. Only the phandle is necessary for IIO consumers in this case.
> 
> Fixes: af11143757b7 ("IIO: Add DT bindings for sigma delta adc modulator")
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
> ---
>  Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt
> index e9ebb8a..ba24ca7 100644
> --- a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt
> +++ b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt
> @@ -3,11 +3,11 @@ Device-Tree bindings for sigma delta modulator
>  Required properties:
>  - compatible: should be "ads1201", "sd-modulator". "sd-modulator" can be use
>  	as a generic SD modulator if modulator not specified in compatible list.
> -- #io-channel-cells = <1>: See the IIO bindings section "IIO consumers".
> +- #io-channel-cells = <0>: See the IIO bindings section "IIO consumers".
>  
>  Example node:
>  
>  	ads1202: adc@0 {
>  		compatible = "sd-modulator";
> -		#io-channel-cells = <1>;
> +		#io-channel-cells = <0>;
>  	};
>