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ALSA: hda - Check subdevice mask in snd_hda_check_board_codec_sid_config()

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In snd_hda_check_board_codec_sid_config(), not only comparing with the
exact value but allow the bit-mask comparison for vendor-only, etc.

Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: Dirk Hohndel <hohndel@infradead.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2011-11-22 19:58:56 +01:00
parent a370fc62b9
commit e2301a4de2
1 changed files with 3 additions and 3 deletions
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6
sound/pci/hda/hda_codec.c
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@ -4046,9 +4046,9 @@ int snd_hda_check_board_codec_sid_config(struct hda_codec *codec,
/* Search for codec ID */
for (q = tbl; q->subvendor; q++) {
unsigned long vendorid = (q->subdevice) | (q->subvendor << 16);
if (vendorid == codec->subsystem_id)
unsigned int mask = 0xffff0000 | q->subdevice_mask;
unsigned int id = (q->subdevice | (q->subvendor << 16)) & mask;
if ((codec->subsystem_id & mask) == id)
break;
}