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

From: Andy Shevchenko
Date: Mon Nov 13 2023 - 05:23:36 EST


On Mon, Nov 13, 2023 at 12:07 PM Alexander Sverdlin
<alexander.sverdlin@xxxxxxxxx> 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