linux-kernel - Re: [PATCH] watchdog: da9062: make restart handler atomic safe

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Message-ID: <20200114200034.nbk6vf77ucngfs6o@porty>
Date:   Tue, 14 Jan 2020 21:00:34 +0100
From:   Stefan Lengfeld <contact@...fanchrist.eu>
To:     Marco Felsch <m.felsch@...gutronix.de>
Cc:     support.opensource@...semi.com, linux@...ck-us.net,
        Adam.Thomson.Opensource@...semi.com,
        linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...gutronix.de
Subject: Re: [PATCH] watchdog: da9062: make restart handler atomic safe

Hi Marco,

On Mon, Jan 13, 2020 at 10:15:21AM +0100, Marco Felsch wrote:
> The restart handler is executed during the shutdown phase which is
> atomic/irq-less. The i2c framework supports atomic transfers since
> commit 63b96983a5dd ("i2c: core: introduce callbacks for atomic
> transfers") but unfortunately the regmap framework doesn't support it
> yet. Hard coding the i2c stuff can be done without worries since the
> DA9062 is an i2c-only device.
> 
> Signed-off-by: Marco Felsch <m.felsch@...gutronix.de>

Reviewed-by: Stefan Lengfeld <contact@...fanchrist.eu>

Thanks for picking up the patch and submitting it.

Kind regards,
    Stefan