linux-kernel - Re: [PATCH] counter: stm32-lptimer-cnt: remove iio counter abi

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Date:   Sun, 24 Jan 2021 15:52:31 +0900
From:   William Breathitt Gray <vilhelm.gray@...il.com>
To:     Fabrice Gasnier <fabrice.gasnier@...s.st.com>
Cc:     jic23@...nel.org, mchehab+huawei@...nel.org,
        lukas.bulwahn@...il.com, linux-doc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        alexandre.torgue@...com, fabrice.gasnier@...com,
        olivier.moysan@...com, linux-iio@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH] counter: stm32-lptimer-cnt: remove iio counter abi

On Fri, Jan 22, 2021 at 04:03:23PM +0100, Fabrice Gasnier wrote:
> Currently, the STM32 LP Timer counter driver registers into both IIO and
> counter subsystems, which is redundant.
> 
> Remove the IIO counter ABI and IIO registration from the STM32 LP Timer
> counter driver since it's been superseded by the Counter subsystem
> as discussed in [1].
> 
> Keep only the counter subsystem related part.
> Move a part of the ABI documentation into a driver comment.
> 
> This also removes a duplicate ABI warning
> $ scripts/get_abi.pl validate
> ...
> /sys/bus/iio/devices/iio:deviceX/in_count0_preset is defined 2 times:
>   ./Documentation/ABI/testing/sysfs-bus-iio-timer-stm32:100
>   ./Documentation/ABI/testing/sysfs-bus-iio-lptimer-stm32:0
> 
> [1] https://lkml.org/lkml/2021/1/19/347
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...s.st.com>

Acked-by: William Breathitt Gray <vilhelm.gray@...il.com>

I'll also submit a patchset removing the IIO code from the 104-quad-8
driver and the rest of the IIO counter ABI documentation.

William Breathitt Gray

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