linux-kernel - Re: [PATCH v4] cpufreq: s5pv210: Defer probe if getting regulators fail

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Date:   Fri, 18 Jan 2019 10:40:10 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Krzysztof Kozlowski <krzk@...nel.org>
Cc:     Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>,
        kgene@...nel.org, rjw@...ysocki.net,
        linux-arm-kernel@...ts.infradead.org,
        "linux-samsung-soc@...r.kernel.org" 
        <linux-samsung-soc@...r.kernel.org>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4] cpufreq: s5pv210: Defer probe if getting regulators
 fail

On 14-01-19, 08:51, Krzysztof Kozlowski wrote:
> On Sun, 13 Jan 2019 at 20:58, Paweł Chmiel
> <pawel.mikolaj.chmiel@...il.com> wrote:
> >
> > There is possibility, that when probing driver, regulators are not yet
> > initialized. In this case we should return EPROBE_DEFER and wait till
> > they're initialized, since they're required currently for cpufreq driver
> > to work. Also move regulator initialization code at beginning of probe,
> > so we can defer as fast as posibble.
> >
> > Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>
> > ---
> > Changes from v3:
> >   - Zero dmc_base pointers after unmapping them
> >   - If getting vddarm regulator fails just return, no need to do goto
> >     jump which would do the same
> >
> > Changes from v2:
> >   - Handle all error paths in probe
> >
> > Changes from v1:
> >   - Fix compilation error
> >   - Reorganize code so it's smaller
> 
> Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>

Applied, thanks.

-- 
viresh