linux-toradex.git/sound, branch v3.18.14

ASoC: rt5677: fixed wrong DMIC ref clock

2015-05-17T23:12:39+00:00

[ Upstream commit 60a8d62b8497c23eb3d48149af7e55dac2dd83a2 ]

DMIC clock source is not from codec system clock directly. it is
generated from the division of system clock. And it should be 256 *
sample rate of AIF1.

Signed-off-by: Bard Liao 
Signed-off-by: Mark Brown 
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin

ASoC: samsung: s3c24xx-i2s: Fix return value check in s3c24xx_iis_dev_probe()

2015-05-17T23:12:38+00:00

[ Upstream commit c479163a1b6ab424786fbcd9225b4e3c1c58eb0b ]

In case of error, the function devm_ioremap_resource() returns
ERR_PTR() and never returns NULL. The NULL test in the return
value check should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun 
Reviewed-by: Krzysztof Kozlowski 
Signed-off-by: Mark Brown 
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin

ALSA: hda - Add mute-LED mode control to Thinkpad

2015-05-17T23:12:36+00:00

[ Upstream commit 7290006d8c0900c56d8c58428134f02c35109d17 ]

This patch adds the missing flag to enable "Mute-LED Mode" mixer enum
ctl for Thinkpads that have also the software mute-LED control.

Reported-and-tested-by: Pali Rohár 
Cc: 
Signed-off-by: Takashi Iwai 
Signed-off-by: Sasha Levin

ALSA: emu10k1: Emu10k2 32 bit DMA mode

2015-05-17T23:12:36+00:00

[ Upstream commit 7241ea558c6715501e777396b5fc312c372e11d9 ]

Looks like audigy emu10k2 (probably emu10k1 - sb live too) support two
modes for DMA. Second mode is useful for 64 bit os with more then 2 GB
of ram (fixes problems with big soundfont loading)

1) 32MB from 2 GB address space using 8192 pages (used now as default)
2) 16MB from 4 GB address space using 4096 pages

Mode is set using HCFG_EXPANDED_MEM flag in HCFG register.
Also format of emu10k2 page table is then different.

Signed-off-by: Peter Zubaj 
Tested-by: Takashi Iwai 
Cc: 
Signed-off-by: Takashi Iwai 
Signed-off-by: Sasha Levin

ALSA: emu10k1: Fix card shortname string buffer overflow

2015-05-17T23:12:36+00:00

[ Upstream commit d02260824e2cad626fb2a9d62e27006d34b6dedc ]

Some models provide too long string for the shortname that has 32bytes
including the terminator, and it results in a non-terminated string
exposed to the user-space.  This isn't too critical, though, as the
string is stopped at the succeeding longname string.

This patch fixes such entries by dropping "SB" prefix (it's enough to
fit within 32 bytes, so far).  Meanwhile, it also changes strcpy()
with strlcpy() to make sure that this kind of problem won't happen in
future, too.

Cc: 
Signed-off-by: Takashi Iwai 
Signed-off-by: Sasha Levin

ALSA: emux: Fix mutex deadlock in OSS emulation

2015-05-17T23:12:36+00:00

[ Upstream commit 1c94e65c668f44d2c69ae7e7fc268ab3268fba3e ]

The OSS emulation in synth-emux helper has a potential AB/BA deadlock
at the simultaneous closing and opening:

  close ->
    snd_seq_release() ->
      sne_seq_free_client() ->
        snd_seq_delete_all_ports(): takes client->ports_mutex ->
	  port_delete() ->
	    snd_emux_unuse(): takes emux->register_mutex

  open ->
    snd_seq_oss_open() ->
      snd_emux_open_seq_oss(): takes emux->register_mutex ->
        snd_seq_event_port_attach() ->
	  snd_seq_create_port(): takes client->ports_mutex

This patch addresses the deadlock by reducing the rance taking
emux->register_mutex in snd_emux_open_seq_oss().  The lock is needed
for the refcount handling, so move it locally.  The calls in
emux_seq.c are already with the mutex, thus they are replaced with the
version without mutex lock/unlock.

Cc: 
Signed-off-by: Takashi Iwai 
Signed-off-by: Sasha Levin

ALSA: emux: Fix mutex deadlock at unloading

2015-05-17T23:12:36+00:00

[ Upstream commit 07b0e5d49d227e3950cb13a3e8caf248ef2a310e ]

The emux-synth driver has a possible AB/BA mutex deadlock at unloading
the emu10k1 driver:

  snd_emux_free() ->
    snd_emux_detach_seq(): mutex_lock(&emu->register_mutex) ->
      snd_seq_delete_kernel_client() ->
        snd_seq_free_client(): mutex_lock(®ister_mutex)

  snd_seq_release() ->
    snd_seq_free_client(): mutex_lock(®ister_mutex) ->
      snd_seq_delete_all_ports() ->
        snd_emux_unuse(): mutex_lock(&emu->register_mutex)

Basically snd_emux_detach_seq() doesn't need a protection of
emu->register_mutex as it's already being unregistered.  So, we can
get rid of this for avoiding the deadlock.

Cc: 
Signed-off-by: Takashi Iwai 
Signed-off-by: Sasha Levin

ASoC: pcm512x: Add 'Analogue' prefix to analogue volume controls

2015-05-17T23:12:15+00:00

[ Upstream commit 4d9b13c7cc803fbde59d7e998f7de2b9a2101c7e ]

This is to ensure that 'alsactl restore' does not apply default
initialisation as the chip reset defaults are preferred.

Signed-off-by: Howard Mitchell 
Signed-off-by: Mark Brown 
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin

ASoC: davinci-evm: drop un-necessary remove function

2015-05-17T23:12:15+00:00

[ Upstream commit a57069e33fbc6625f39e1b09c88ea44629a35206 ]

As davinci card gets registered using 'devm_' api
there is no need to unregister the card in 'remove'
function.
Hence drop the 'remove' function.

Fixes: ee2f615d6e59c (ASoC: davinci-evm: Add device tree binding)
Signed-off-by: Manish Badarkhe 
Signed-off-by: Jyri Sarha 
Signed-off-by: Mark Brown 
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin

ASoC: wm8741: Fix rates constraints values

2015-05-17T23:12:15+00:00

[ Upstream commit 8787041d9bb832b9449b1eb878cedcebce42c61a ]

The WM8741 DAC supports the following typical audio sampling rates:
  44.1kHz, 88.2kHz, 176.4kHz (eg: with a master clock of 22.5792MHz)
  32kHz, 48kHz, 96kHz, 192kHz (eg: with a master clock of 24.576MHz)

For the rates lists, we should use 82000 instead of 88235, 176400
instead of 1764000 and 192000 instead of 19200 (seems to be a typo).

Signed-off-by: Sergej Sawazki 
Acked-by: Charles Keepax 
Signed-off-by: Mark Brown 
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin