ALSA: hda: Fix max PCM level to 0 dB for Fujitsu-Siemens laptops using CX20549 (Venice)

commit 0b587fc4d35afb1bc0fc3d890084bb14c78372dc upstream.

BugLink: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4792
Cristian reported that these models have really bad sound above 6 dB
and proposed the original patch. I've updated the comment to reflect
this change.

Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Reported-by: Cristian Klein
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 79afb46a0fbc94070c497a3fff202904955eb562..e90466745c302ef5fc8100b42c9823899cbce456 100644 (file)
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -1175,9 +1175,10 @@ static int patch_cxt5045(struct hda_codec *codec)
 
        switch (codec->subsystem_id >> 16) {
        case 0x103c:
-               /* HP laptop has a really bad sound over 0dB on NID 0x17.
-                * Fix max PCM level to 0 dB
-                * (originall it has 0x2b steps with 0dB offset 0x14)
+       case 0x1734:
+               /* HP & Fujitsu-Siemens laptops have really bad sound over 0dB
+                * on NID 0x17. Fix max PCM level to 0 dB
+                * (originally it has 0x2b steps with 0dB offset 0x14)
                 */
                snd_hda_override_amp_caps(codec, 0x17, HDA_INPUT,
                                          (0x14 << AC_AMPCAP_OFFSET_SHIFT) |