linux-kernel - Re: [PATCH 0/2] iio: adc: stm32-adc: add checks on adc state

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Message-ID: <20220625142802.51ee9637@jic23-huawei>
Date:   Sat, 25 Jun 2022 14:28:02 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Olivier Moysan <olivier.moysan@...s.st.com>
Cc:     Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Fabrice Gasnier <fabrice.gasnier@...s.st.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Paul Cercueil <paul@...pouillou.net>,
        Wan Jiabing <wanjiabing@...o.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>
Subject: Re: [PATCH 0/2] iio: adc: stm32-adc: add checks on adc state

On Mon, 20 Jun 2022 17:47:36 +0200
Olivier Moysan <olivier.moysan@...s.st.com> wrote:

> On ADC startup a calibration is launched.
> A prerequisite for ADC calibration is to have ADC in disabled state.
> After kernel boot, the ADC state may be unknown as the ADC may have been left enabled by boot stage.
> 
> Call ADC disable routine systematically before launching calibration.
> Adapt ADC disable routine to perform disabling sequence according to current ADC state.
> 
> Olivier Moysan (2):
>   iio: adc: stm32-adc: make safe adc disable
>   iio: adc: stm32-adc: disable adc before calibration
> 
>  drivers/iio/adc/stm32-adc.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 

Series applied to the togreg branch and pushed out as testing
for all the normal reasons.

Thanks,

Jonathan