linux-kernel - Re: [PATCH v2] counter: stm32-timer-cnt: add power management support

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Date:   Tue, 11 Feb 2020 17:30:28 -0500
From:   William Breathitt Gray <vilhelm.gray@...il.com>
To:     Fabrice Gasnier <fabrice.gasnier@...com>
Cc:     jic23@...nel.org, alexandre.torgue@...com,
        mcoquelin.stm32@...il.com, benjamin.gaignard@...com,
        linux-iio@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] counter: stm32-timer-cnt: add power management support

On Tue, Feb 11, 2020 at 11:54:17AM +0100, Fabrice Gasnier wrote:
> On 2/10/20 6:45 PM, William Breathitt Gray wrote:
> > On Mon, Feb 10, 2020 at 06:19:58PM +0100, Fabrice Gasnier wrote:
> >> Add suspend/resume PM sleep ops. When going to low power, enforce the
> >> counter isn't active. Gracefully restore its state upon resume in case
> >> it's been left enabled prior to suspend.
> >>
> >> Acked-by: William Breathitt Gray <vilhelm.gray@...il.com>
> >> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
> >> ---
> >> Changes in v2:
> >> - Don't refuse to suspend in case the counter has been left enabled.
> >>   Gracefully disable it and restore its state upon resume.
> >> ---
> >>  drivers/counter/stm32-timer-cnt.c | 63 +++++++++++++++++++++++++++++++++++++++
> >>  1 file changed, 63 insertions(+)
> >>
> >> diff --git a/drivers/counter/stm32-timer-cnt.c b/drivers/counter/stm32-timer-cnt.c
> >> index 3eafcce..50496f4 100644
> >> --- a/drivers/counter/stm32-timer-cnt.c
> >> +++ b/drivers/counter/stm32-timer-cnt.c
> >> @@ -12,6 +12,7 @@
> >>  #include <linux/iio/types.h>
> > 
> > Unrelated to your patch but it caught my eye: are iio headers necessary
> > for this file? I suspect they are not needed since this driver does not
> > make use of the IIO interface.
> 
> Hi William,
> 
> Yes, you're right. Thanks for pointing this!
> I'll push a patch on top of this one to fix it. BTW, I'm not sure if
> this needs to be a marked as a fix, as this seems a quite minor issue?
> 
> Best Regards,
> Fabrice

No need for a Fixes tag in this case since this is not a bug fix, but
rather just a minor clean up of the included headers.

Thanks,

William Breathitt Gray