[ 26/45] ALSA: hda - Fix missing mute controls for CX5051

From: Greg Kroah-Hartman
Date: Sun Aug 18 2013 - 16:43:28 EST


3.10-stable review patch. If anyone has any objections, please let me know.

------------------

From: Takashi Iwai <tiwai@xxxxxxx>

commit f69910ddbd8c29391958cf82b598dd78fe5c8640 upstream.

We've added a fake mute control (setting the amp volume to zero) for
CX5051 at commit [3868137e: ALSA: hda - Add a fake mute feature], but
this feature was overlooked in the generic parser implementation. Now
the driver lacks of mute controls on these codecs.

The fix is just to check both AC_AMPCAP_MUTE and AC_AMPCAP_MIN_MUTE
bits in each place checking the amp capabilities.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=59001
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
sound/pci/hda/hda_generic.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -519,7 +519,7 @@ static bool same_amp_caps(struct hda_cod
}

#define nid_has_mute(codec, nid, dir) \
- check_amp_caps(codec, nid, dir, AC_AMPCAP_MUTE)
+ check_amp_caps(codec, nid, dir, (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE))
#define nid_has_volume(codec, nid, dir) \
check_amp_caps(codec, nid, dir, AC_AMPCAP_NUM_STEPS)

@@ -621,7 +621,7 @@ static int get_amp_val_to_activate(struc
if (enable)
val = (caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
}
- if (caps & AC_AMPCAP_MUTE) {
+ if (caps & (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) {
if (!enable)
val |= HDA_AMP_MUTE;
}
@@ -645,7 +645,7 @@ static unsigned int get_amp_mask_to_modi
{
unsigned int mask = 0xff;

- if (caps & AC_AMPCAP_MUTE) {
+ if (caps & (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) {
if (is_ctl_associated(codec, nid, dir, idx, NID_PATH_MUTE_CTL))
mask &= ~0x80;
}


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