The split of Realtek HD-audio codec driver may cause confusions
especially when migrating from the previous kernel configurations
because it's hard to know which driver to be enabled.
Although we've already set default=y for those codec drivers, it may
still make people changing the stuff unnecessarily without knowing its
side effect.
This patch is for avoiding such pitfalls by marking the prompt of each
Realtek codec driver with CONFIG_EXPERT. For "normal" users (that is,
unless CONFIG_EXPERT is set), all Realtek HD-audio codecs are enabled
together with CONFIG_SND_HDA_CODEC_REALTEK; this is the very same
situation like the previous kernels, after all.
For users who really care about the minimalistic configuration, they
can turn each driver on/off individually after setting
CONFIG_EXPERT=y.
The patch also adds the missing help text to the top-level
CONFIG_SND_HDA_CODEC_REALTEK together with the explanation of
individual choices, too.
Fixes: aeeb85f26c ("ALSA: hda: Split Realtek HD-audio codec driver")
Link: https://lore.kernel.org/10172c80-daec-4e20-ab57-a483cf1afc02@molgen.mpg.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250806192541.21949-2-tiwai@suse.de
The recent split of Realtek HD-audio driver forced users to choose the
right Kconfigs, but most users have no idea which ones to enable.
Although the distros tend to enable all of them, individual users may
have their own favorites and miss something needed via the version
upgrade.
For smoother upgrade path from the previous kernel configuration, now
we take the following changes:
- CONFIG_SND_HDA_CODEC_REALTEK (which is a menuconfig) is changed from
bool to tristate again, so that it can take over from the previous
config gracefully.
- CONFIG_SND_HDA_CODEC_ALC* receive "default y", so that they are
enabled as default as long as CONFIG_SND_HDA_CODEC_REALTEK is set.
Those can be still disabled if users want to reduce the size, too.
At least this allows users to run "make oldconfig" and push RETURN
blindly.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250730064639.25617-2-tiwai@suse.de
The snd-hda-codec-realtek driver supports many different codec models
and accumulated lots of quirks. Now let's split it to multiple
modules per probe function, i.e. for ALC260, ALC262, ALC269, etc.
The common code and quirks are provided by the common library module,
snd-hda-codec-realtek-lib now. One drawback of this action is that
many symbols have to be exported. But they are limited with
SND_HDA_CODEC_REALTEK namespace, at least.
This patch tries to be idiomatic and doesn't try to rewrite the
existing code. We can move the codec model-specific code into each
codec driver later.
The HD-audio sub-codec component binding is currently specific to
ALC269, hence the management is moved into alc269.c.
After that, alc_free() became identical with snd_hda_gen_free(), and
it's replaced as a macro just to call snd_hda_gen_free().
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-8-tiwai@suse.de
