linux-kernel - Re: [PATCH v2 2/3] dt-bindings: iio: adc: stm32: add optional st,min-sample-time-nsecs

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Message-ID: <20170803170154.bizlx2dvdbwtgmoy@rob-hp-laptop>
Date:   Thu, 3 Aug 2017 12:01:54 -0500
From:   Rob Herring <robh@...nel.org>
To:     Fabrice Gasnier <fabrice.gasnier@...com>
Cc:     jic23@...nel.org, 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
Subject: Re: [PATCH v2 2/3] dt-bindings: iio: adc: stm32: add optional
 st,min-sample-time-nsecs

On Mon, Jul 24, 2017 at 06:10:39PM +0200, Fabrice Gasnier wrote:
> STM32 ADC allows each channel to be sampled with a different sampling
> time. There's an application note that deals with this: 'How to get
> the best ADC accuracy in STM32...' It basically depends on analog input
> signal electrical properties (depends on board).
> 
> Add optional 'st,min-sample-time-nsecs' property so this can be tuned
> in dt.
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
> ---
> Changes in v2:
> - Use 'st,min-sample-time-nsecs' instead of 'min-sample-time'.
> ---
>  Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 5 +++++
>  1 file changed, 5 insertions(+)

Acked-by: Rob Herring <robh@...nel.org>