linux-kernel - Re: [PATCH 2/2] mfd: add regulator cell to Cherry Trail Whiskey Cove PMIC

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Message-ID: <20191025104925.GR32742@smile.fi.intel.com>
Date:   Fri, 25 Oct 2019 13:49:25 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andrey Zhizhikin <andrey.z@...il.com>
Cc:     lgirdwood@...il.com, broonie@...nel.org, lee.jones@...aro.org,
        linux-kernel@...r.kernel.org,
        Andrey Zhizhikin <andrey.zhizhikin@...ca-geosystems.com>
Subject: Re: [PATCH 2/2] mfd: add regulator cell to Cherry Trail Whiskey Cove
 PMIC

On Fri, Oct 25, 2019 at 11:16:22AM +0200, Andrey Zhizhikin wrote:
> On Fri, Oct 25, 2019 at 10:07 AM Andy Shevchenko
> <andriy.shevchenko@...ux.intel.com> wrote:
> > On Thu, Oct 24, 2019 at 02:29:39PM +0000, Andrey Zhizhikin wrote:
> > > Add a regulator mfd cell to Whiskey Cove PMIC driver, which is used to
> > > supply various voltage rails.
> > >
> > > In addition, make the initialization of this mfd driver early enough in
> > > order to provide regulator cell to mmc sub-system when it is initialized.
> >
> > Doesn't deferred probe mechanism work for you?
> > MMC core returns that error till we have the driver initialized.
> 
> This would work for mmc sub-system, but my idea was that later when
> more cells are added to this mfd - it might turn out that we would
> require an early initialization anyway. So I decided to take an
> opportunity to adjust it with this patch as well, and this is what I
> roughly explained in the commit message. When I'm reading it now,
> exactly this point was not mentioned in commit message at all, and I
> rather coupled the early init with mmc sub-system, which creates a
> source of confusion here. I guess if there would be no other
> objections about early init - I'd go with v2 of this patch, where I
> would clean-up the point below and adjust the commit description.
> 
> Thanks a lot for pointing this out!

> > > -static struct i2c_driver cht_wc_driver = {
> > > +static struct i2c_driver cht_wc_i2c_driver = {
> >
> > Renaming is not explained in the commit message.
> 
> True, this point I forgot to mention. Actually, this is tightly
> coupled with the fact that mfd driver has been moved to an earlier
> init stage and since it does belong to I2C sub-system (and represented
> by i2c_device structure) - I decided to make a name sound more
> logical.

So, seems you have three changes in one patch. Please, split accordingly.

In v2 also Cc all stakeholders I mentioned.

-- 
With Best Regards,
Andy Shevchenko