linux-kernel - Re: [RFC 2/8] cpufreq: imx6q: Fix handling EPROBE

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Date:   Thu, 23 Mar 2017 10:03:34 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Leonard Crestez <leonard.crestez@....com>
Cc:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Robin Gong <yibin.gong@....com>,
        Anson Huang <Anson.Huang@....com>,
        Irina Tirdea <irina.tirdea@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Fabio Estevam <fabio.estevam@....com>,
        Octavian Purdila <octavian.purdila@....com>,
        linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC 2/8] cpufreq: imx6q: Fix handling EPROBE_DEFER from
 regulator

On 22-03-17, 18:53, Leonard Crestez wrote:
> From: Irina Tirdea <irina.tirdea@....com>
> 
> If there are any errors in getting the cpu0 regulators, the driver returns
> -ENOENT. In case the regulators are not yet available, the devm_regulator_get
> calls will return -EPROBE_DEFER, so that the driver can be probed later.
> If we return -ENOENT, the driver will fail its initialization and will
> not try to probe again (when the regulators become available).
> 
> Return the actual error received from regulator_get in probe. Print a
> differentiated message in case we need to probe the device later and
> in case we actually failed. Also add a message to inform when the
> driver has been successfully registered.
> 
> Signed-off-by: Irina Tirdea <irina.tirdea@....com>
> Signed-off-by: Leonard Crestez <leonard.crestez@....com>
> ---
>  drivers/cpufreq/imx6q-cpufreq.c | 7 +++++++
>  1 file changed, 7 insertions(+)

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

-- 
viresh