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| author |   Takashi Iwai <tiwai@suse.de> | 2021-08-23 09:37:21 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-08-23 10:59:13 +0200 |
| commit | a235d5b8e550fac7520410440bcc8003fb4cf8d0 (patch) | |
| tree | 9cdc1af4aacff1959b02deb16fc298c89400eec4 /sound/pci | |
| parent | ALSA: hda: Code refactoring snd_hda_pick_fixup() (diff) | |
| download | linux-dev-a235d5b8e550fac7520410440bcc8003fb4cf8d0.tar.xz linux-dev-a235d5b8e550fac7520410440bcc8003fb4cf8d0.zip | |
ALSA: hda: Allow model option to specify PCI SSID alias
There are tons of quirks for HD-audio and many of them are without
model string, hence it's not trivial to apply the same quirk for a new
device. This patch makes it easier: namely, the model string accepts
a form as "XXXX:YYYY" (a pair of hex numbers of the subsystem-vendor
and subsystem-device IDs), to specify the alias of PCI (or codec)
SSID. e.g. passing model=1234:abcd would apply the quirk that matches
with the given SSID 1234:abcd instead of the actual SSID.
Link: https://lore.kernel.org/r/20210823073722.14873-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/hda_auto_parser.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_auto_parser.c b/sound/pci/hda/hda_auto_parser.c index dd050be7aefa..4a854475a0e6 100644 --- a/sound/pci/hda/hda_auto_parser.c +++ b/sound/pci/hda/hda_auto_parser.c @@ -971,6 +971,8 @@ EXPORT_SYMBOL_GPL(snd_hda_pick_pin_fixup); * When a special model string "nofixup" is given, also no fixup is applied. * * The function tries to find the matching model name at first, if given. + * If the model string contains the SSID alias, try to look up with the given + * alias ID. * If nothing matched, try to look up the PCI SSID. * If still nothing matched, try to look up the codec SSID. */ @@ -983,6 +985,7 @@ void snd_hda_pick_fixup(struct hda_codec *codec, int id = HDA_FIXUP_ID_NOT_SET; const char *name = NULL; const char *type = NULL; + int vendor, device; if (codec->fixup_id != HDA_FIXUP_ID_NOT_SET) return; @@ -1013,6 +1016,16 @@ void snd_hda_pick_fixup(struct hda_codec *codec, if (!quirk) return; + /* match with the SSID alias given by the model string "XXXX:YYYY" */ + if (codec->modelname && + sscanf(codec->modelname, "%04x:%04x", &vendor, &device) == 2) { + q = snd_pci_quirk_lookup_id(vendor, device, quirk); + if (q) { + type = "alias SSID"; + goto found_device; + } + } + /* match with the PCI SSID */ q = snd_pci_quirk_lookup(codec->bus->pci, quirk); if (q) { |