linux-kernel - Re: [PATCH v3 3/9] ALSA: hda/i915: Add an allow_modprobe argument to snd_hdac_i915

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Date:   Sat, 12 Aug 2023 10:21:24 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Cc:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        alsa-devel@...a-project.org, Maarten Lankhorst <dev@...khorst.se>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Cezary Rojewski <cezary.rojewski@...el.com>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Daniel Baluta <daniel.baluta@....com>,
        linux-kernel@...r.kernel.org, sound-open-firmware@...a-project.org
Subject: Re: [PATCH v3 3/9] ALSA: hda/i915: Add an allow_modprobe argument to snd_hdac_i915_init

On Mon, 07 Aug 2023 16:08:32 +0200,
Pierre-Louis Bossart wrote:
> 
> 
> 
> On 8/7/23 04:00, Maarten Lankhorst wrote:
> > Xe is a new GPU driver that re-uses the display (and sound) code from
> > i915. It's no longer possible to load i915, as the GPU can be driven
> > by the xe driver instead.
> > 
> > The new behavior will return -EPROBE_DEFER, and wait for a compatible
> > driver to be loaded instead of modprobing i915.
> > 
> > Converting all drivers at the same time is a lot of work, instead we
> > will convert each user one by one.
> > 
> > Changes since v1:
> > - Use dev_err_probe to set a probe reason for debugfs' deferred_devices.
> 
> You want the changes below the --- line ...

Note that there are subsystems preferring keeping the version change
logs in the commit log (typically found in drm trees), although
majority of subsystems (including sound) want rather cleaner logs,
AFAIK.


Takashi