[alsa-devel] [PATCH] ALSA: hda - apply CS420X erratum fix for CS4207 only

[Arun Raghavan]

From: Arun Raghavan <arun at accosted.net>

The commit a769cbcf60cee51f4431c0938acd39e7e5b76b8d
    ALSA: hda - Add errata initverb sequence for CS42xx codecs
applies a fix for a chip erratum that is specific to CS4207
unconditionally. On CS4206, this causes digital output to never be
activated.
---
 sound/pci/hda/patch_cirrus.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
index a07b031..9804b09 100644
--- a/sound/pci/hda/patch_cirrus.c
+++ b/sound/pci/hda/patch_cirrus.c
@@ -1065,8 +1065,9 @@ static int cs_init(struct hda_codec *codec)
 {
 	struct cs_spec *spec = codec->spec;
 
-	/* init_verb sequence for C0/C1/C2 errata*/
-	snd_hda_sequence_write(codec, cs_errata_init_verbs);
+	/* init_verb sequence for CS4207 C0/C1/C2 errata */
+	if (codec->vendor_id == 0x10134207)
+		snd_hda_sequence_write(codec, cs_errata_init_verbs);
 
 	snd_hda_sequence_write(codec, cs_coef_init_verbs);
 
-- 
1.7.4.1