linux-kernel - Re: [RESEND PATCH] drm/panfrost: Reduce the amount of logs on deferred probe

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Date:   Mon, 23 Sep 2019 18:45:50 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Steven Price <steven.price@....com>
Cc:     Rob Herring <robh@...nel.org>,
        Tomeu Vizoso <tomeu.vizoso@...labora.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [RESEND PATCH] drm/panfrost: Reduce the amount of logs on
 deferred probe

On Thu, Sep 12, 2019 at 10:36:25AM +0100, Steven Price wrote:
> On 09/09/2019 16:51, Krzysztof Kozlowski wrote:
> > There is no point to print deferred probe (and its failures to get
> > resources) as an error.
> > 
> > In case of multiple probe tries this would pollute the dmesg.
> > 
> > Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> 
> Looks like a good idea, however from what I can tell you haven't
> completely silenced the 'error' as the return from
> panfrost_regulator_init() will be -EPROBE_DEFER causing another
> dev_err() output:
> 
>         err = panfrost_regulator_init(pfdev);
>         if (err) {
>                 dev_err(pfdev->dev, "regulator init failed %d\n", err);
>                 goto err_out0;
>         }
> 
> Can you fix that up as well? Or indeed drop it altogether since
> panfrost_regulator_init() already outputs an appropriate message.

I'll drop this error message then. Thanks for feedback!

Best regards,
Krzysztof