linux.git/sound, branch v3.18.72

ALSA: msnd: Optimize / harden DSP and MIDI loops

2017-09-13T21:03:47+00:00

commit 20e2b791796bd68816fa115f12be5320de2b8021 upstream.

The ISA msnd drivers have loops fetching the ring-buffer head, tail
and size values inside the loops.  Such codes are inefficient and
fragile.

This patch optimizes it, and also adds the sanity check to avoid the
endless loops.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196131
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196133
Signed-off-by: Takashi Iwai 
Signed-off-by: grygorii tertychnyi 
Signed-off-by: Greg Kroah-Hartman

ALSA: au88x0: Fix zero clear of stream->resources

2017-09-02T05:05:45+00:00

commit 639db596165746ca87bbcb56559b094fd9042890 upstream.

There are a few calls of memset() to stream->resources, but they all
are called in a wrong size, sizeof(unsigned char) * VORTEX_RESOURCE_LAST,
while this field is a u32 array.  This may leave the memories not
zero-cleared.

Fix it by replacing them with a simpler sizeof(stream->resources)
instead.

Reported-by: David Binderman 
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ALSA: hda - Add stereo mic quirk for Lenovo G50-70 (17aa:3978)

2017-08-30T08:16:55+00:00

commit bbba6f9d3da357bbabc6fda81e99ff5584500e76 upstream.

Lenovo G50-70 (17aa:3978) with Conexant codec chip requires the
similar workaround for the inverted stereo dmic like other Lenovo
models.

Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1020657
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ALSA: core: Fix unexpected error at replacing user TLV

2017-08-30T08:16:55+00:00

commit 88c54cdf61f508ebcf8da2d819f5dfc03e954d1d upstream.

When user tries to replace the user-defined control TLV, the kernel
checks the change of its content via memcmp().  The problem is that
the kernel passes the return value from memcmp() as is.  memcmp()
gives a non-zero negative value depending on the comparison result,
and this shall be recognized as an error code.

The patch covers that corner-case, return 1 properly for the changed
TLV.

Fixes: 8aa9b586e420 ("[ALSA] Control API - more robust TLV implementation")
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ALSA: usb-audio: Apply sample rate quirk to Sennheiser headset

2017-08-25T00:00:10+00:00

commit a8e800fe0f68bc28ce309914f47e432742b865ed upstream.

A Senheisser headset requires the typical sample-rate quirk for
avoiding spurious errors from inquiring the current sample rate like:
 usb 1-1: 2:1: cannot get freq at ep 0x4
 usb 1-1: 3:1: cannot get freq at ep 0x83

The USB ID 1395:740a has to be added to the entries in
snd_usb_get_sample_rate_quirk().

Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1052580
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ASoC: do not close shared backend dailink

2017-08-11T16:30:13+00:00

commit b1cd2e34c69a2f3988786af451b6e17967c293a0 upstream.

Multiple frontend dailinks may be connected to a backend
dailink at the same time. When one of frontend dailinks is
closed, the associated backend dailink should not be closed
if it is connected to other active frontend dailinks. Change
ensures that backend dailink is closed only after all
connected frontend dailinks are closed.

Signed-off-by: Gopikrishnaiah Anandan 
Signed-off-by: Banajit Goswami 
Signed-off-by: Patrick Lai 
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

ALSA: hda - Fix speaker output from VAIO VPCL14M1R

2017-08-11T16:30:13+00:00

commit 3f3c371421e601fa93b6cb7fb52da9ad59ec90b4 upstream.

Sony VAIO VPCL14M1R needs the quirk to make the speaker working properly.

Tested-by: Dmitriy 
Signed-off-by: Sergei A. Trusov 
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ASoC: tlv320aic3x: Mark the RESET register as volatile

2017-08-11T16:30:12+00:00

[ Upstream commit 63c3194b82530bd71fd49db84eb7ab656b8d404a ]

The RESET register only have one self clearing bit and it should not be
cached. If it is cached, when we sync the registers back to the chip we
will initiate a software reset as well, which is not desirable.

Signed-off-by: Peter Ujfalusi 
Reviewed-by: Jarkko Nikula 
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

ASoC: compress: Derive substream from stream based on direction

2017-07-27T22:03:25+00:00

commit 01b8cedfd0422326caae308641dcadaa85e0ca72 upstream.

Currently compress driver hardcodes direction as playback to get
substream from the stream. This results in getting the incorrect
substream for compressed capture usecase.
To fix this, remove the hardcoding and derive substream based on
the stream direction.

Signed-off-by: Satish Babu Patakokila 
Signed-off-by: Banajit Goswami 
Acked-By: Vinod Koul 
Signed-off-by: Mark Brown 
Signed-off-by: Greg Kroah-Hartman

ALSA: hda - set input_path bitmap to zero after moving it to new place

2017-07-05T12:35:13+00:00

commit a8f20fd25bdce81a8e41767c39f456d346b63427 upstream.

Recently we met a problem, the codec has valid adcs and input pins,
and they can form valid input paths, but the driver does not build
valid controls for them like "Mic boost", "Capture Volume" and
"Capture Switch".

Through debugging, I found the driver needs to shrink the invalid
adcs and input paths for this machine, so it will move the whole
column bitmap value to the previous column, after moving it, the
driver forgets to set the original column bitmap value to zero, as a
result, the driver will invalidate the path whose index value is the
original colume bitmap value. After executing this function, all
valid input paths are invalidated by a mistake, there are no any
valid input paths, so the driver won't build controls for them.

Fixes: 3a65bcdc577a ("ALSA: hda - Fix inconsistent input_paths after ADC reduction")
Signed-off-by: Hui Wang 
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman