netdev - Re: [PATCH v3 14/42] power: reset: Add a driver for the ep93xx reset

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Date: Mon, 13 Nov 2023 12:22:56 +0200
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Alexander Sverdlin <alexander.sverdlin@...il.com>
Cc: Andy Shevchenko <andy@...nel.org>, nikita.shubin@...uefel.me, 
	Hartley Sweeten <hsweeten@...ionengravers.com>, Lennert Buytenhek <kernel@...tstofly.org>, 
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Subject: Re: [PATCH v3 14/42] power: reset: Add a driver for the ep93xx reset

On Mon, Nov 13, 2023 at 12:07 PM Alexander Sverdlin
<alexander.sverdlin@...il.com> wrote:
> On Fri, 2023-07-21 at 19:37 +0300, Andy Shevchenko wrote:
> > > +       /* Issue the reboot */
>             ^^^^^^^^^^^^^^^^^^^^^^
> This is the relevant comment, one can extend it, but looks already quite
> informative considering EP93XX_SYSCON_DEVCFG_SWRST register name.

This does not explain the necessity of the mdelay() below.

> But Nikita would be able to include more verbose comment if
> you'd have a suggestion.

Please,add one.

> > > +       ep93xx_devcfg_set_clear(priv->map, EP93XX_SYSCON_DEVCFG_SWRST, 0x00);
> > > +       ep93xx_devcfg_set_clear(priv->map, 0x00, EP93XX_SYSCON_DEVCFG_SWRST);
> >
> >
> > > +       mdelay(1000);
> >
> > Atomic?! Such a huge delay must be explained, esp. why it's atomic.

-- 
With Best Regards,
Andy Shevchenko