linux-kernel - Re: [PATCH] drm/tidss: Use dev_err_probe() over dev

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Date: Thu, 29 Feb 2024 00:11:59 +0100
From: Enric Balletbo i Serra <eballetb@...hat.com>
To: Javier Martinez Canillas <javierm@...hat.com>
Cc: Andrew Halaney <ahalaney@...hat.com>, Jyri Sarha <jyri.sarha@....fi>, 
	Tomi Valkeinen <tomi.valkeinen@...asonboard.com>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, 
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/tidss: Use dev_err_probe() over dev_dbg() when
 failing to probe the port

Hello Andrew,

Many thanks for proposing this.

On Wed, Feb 28, 2024 at 11:02 PM Javier Martinez Canillas
<javierm@...hat.com> wrote:
>
> Andrew Halaney <ahalaney@...hat.com> writes:
>
> Hello Andrew,
>
> > This gets logged out to /sys/kernel/debug/devices_deferred in the
> > -EPROBE_DEFER case and as an error otherwise. The message here provides
> > useful information to the user when troubleshooting why their display is
> > not working in either case, so let's make it output appropriately.
> >
> > Signed-off-by: Andrew Halaney <ahalaney@...hat.com>
> > ---
> > There's definitely more spots in this driver that could be upgraded from
> > dev_dbg() to something more appropriate, but this one burned me today so
> > I thought I'd send a patch for it specifically before I forget.
> > ---
>
> Makes sense to me and I agree that's useful to have that information there.
>
> Reviewed-by: Javier Martinez Canillas <javierm@...hat.com>
>

Logging in  /sys/kernel/debug/devices_deferred was useful for me, so

Tested-by: Enric Balletbo i Serra <eballetbo@...nel.org>

Cheers,
  Enric

> --
> Best regards,
>
> Javier Martinez Canillas
> Core Platforms
> Red Hat
>