| Commit message (Collapse) | Author | Age | Files | Lines |
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au88x0 hardware seems returning the current pointer at the buffer
boundary instead of going back to zero. This results in spewing
warnings from PCM core.
This patch corrects the return value from the pointer callback within
the proper value range, just returning zero if the position is equal
or above the buffer size.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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This patch tries to address the still remaining issues in ALSA hrtimer
driver:
- Spurious use-after-free was detected in hrtimer callback
- Incorrect rescheduling due to delayed start
- WARN_ON() is triggered in hrtimer_forward() invoked in hrtimer
callback
The first issue happens only when the new timer is scheduled even
while hrtimer is being closed. It's related with the second and third
items; since ALSA timer core invokes hw.start callback during hrtimer
interrupt, this may result in the explicit call of hrtimer_start().
Also, the similar problem is seen for the stop; ALSA timer core
invokes hw.stop callback even in the hrtimer handler, too. Since we
must not call the synced hrtimer_cancel() in such a context, it's just
a hrtimer_try_to_cancel() call that doesn't properly work.
Another culprit of the second and third items is the call of
hrtimer_forward_now() before snd_timer_interrupt(). The timer->stick
value may change during snd_timer_interrupt() call, but this
possibility is ignored completely.
For covering these subtle and messy issues, the following changes have
been done in this patch:
- A new flag, in_callback, is introduced in the private data to
indicate that the hrtimer handler is being processed.
- Both start and stop callbacks skip when called from (during)
in_callback flag.
- The hrtimer handler returns properly HRTIMER_RESTART and NORESTART
depending on the running state now.
- The hrtimer handler reprograms the expiry properly after
snd_timer_interrupt() call, instead of before.
- The close callback clears running flag and sets in_callback flag
to block any further start/stop calls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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There are no users of rtctimer left. Remove its code as this is the
in-kernel user of the legacy PC RTC driver that will hopefully be removed
at some point.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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When some tascam units are connected sequentially, userspace
applications are involved at bus-reset state on IEEE 1394 bus. In the
state, any communications can be canceled. Therefore, sound card
registration should be delayed till the bus gets calm.
This commit achieves it.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The "Line In->Rear Out Switch" control on ens1371 driver returns a
bogus value, always true, as its check is totally broken. Fix it to
check the proper GPIO bit mask.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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lx_pipe_state() checks the return value from lx_message_send_atomic()
and breaks the loop only when it's a negative value. However,
lx_message_send_atomic() may return a positive error code (as the
return code from the hardware), and then lx_pipe_state() tries to
compare the uninitialized current_state variable.
Fix this behavior by checking the positive non-zero error code as
well.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Currently kill_fasync() is called outside the stream lock in
snd_pcm_period_elapsed(). This is potentially racy, since the stream
may get released even during the irq handler is running. Although
snd_pcm_release_substream() calls snd_pcm_drop(), this doesn't
guarantee that the irq handler finishes, thus the kill_fasync() call
outside the stream spin lock may be invoked after the substream is
detached, as recently reported by KASAN.
As a quick workaround, move kill_fasync() call inside the stream
lock. The fasync is rarely used interface, so this shouldn't have a
big impact from the performance POV.
Ideally, we should implement some sync mechanism for the proper finish
of stream and irq handler. But this oneliner should suffice for most
cases, so far.
Reported-by: Baozeng Ding <sploving1@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The calls for capture_hook were missing in dyn_adc_capture_pcm_prepare
and cleanup callbacks. Luckily there are no users of the capture
hooks with dyn-adc PCM, so far, thus this doesn't change the behavior
of existing devices, but it's a fix for a future usage.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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miniDSP USBStreamer UAC2 devices send clock validity changes with the
control field set to zero. The current interrupt handler ignores all
packets if the control field does not match the mixer element's, but
it really should only do that in case that field is needed to
distinguish multiple elements with the same ID.
This patch implements a logic that lets notifications packets pass
if the element ID is unique for a given device.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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UAC2 specifies clock sources that optionally have validity controls.
This patch exposes them as mixer controls, so they can be read (and
at least in theory even be written) by userspace applications in order
to make clock selection policy decisions.
This implementation does nothing if the device is not UAC2 compliant,
or if the clock source does not define said validity control bits.
Tested with a miniDSP USBStreamer (0x2752/0x0016).
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The ct_timer_ops structures are never modified, so declare them as const.
Done with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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intel8x0 driver has the inside_vm check for skipping a buggy hardware
workaround in the PCM pointer callback in the commit [228cf79376f1:
ALSA: intel8x0: Improve performance in virtual environment]. This was
originally applied to all devices on known VMs, but the code was
switched to use the PCI ID matching for applying to only known
devices (KVM and Parallels), in order to avoid applying wrongly to
VT-d and other such cases, in the commit [7fb4f392bd27: ALSA:
intel8x0: improve virtual environment detection].
Meanwhile, the original VM check was kept even after switching to the
PCI ID matching. It was partly because we weren't 100% sure whether
we had covered all well, and partly because this would help
identifying the issue once when a user of another VM hit the same
problem or a regression. Currently the VM check is used only for
showing the kernel message that the VM-optimization isn't applied, and
the VM check itself doesn't change the actual driver behavior at all.
Despite the relatively safe driver behavior, the code caught attention
of developers badly and brought many confusion / misunderstanding.
Since we've got neither regression nor enhancement report for other
VMs for five years long, it's likely safe to drop this superfluous VM
check now.
The module option is still kept, so if a user still needs to adjust,
it can be applied as was.
Acked-by: Konstantin Ozerkov <kozerkov@parallels.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The existing TLV callback implementation copies all of the
cea_channel_speaker_allocation map table to the TLV container
irrespective of what is reported by sink. This is of little use
to the userspace application.
With this patch, it parses the spk_alloc block as queried from
the ELD, and copies only the corresponding mapping channel
allocation entries from the cea channel speaker allocation table.
Thus the user can parse the TLV container to identify sink's
capability and set the channel map accordingly.
It shouldn't impact the behavior in AMD chipset, as this makes
use of already parsed spk alloc block to calculate the channel
map.
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Conflicts:
sound/hda/hdac_i915.c
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Phoenix Audio TMX320 gives the similar error when the sample rate is
asked:
usb 2-1.3: 2:1: cannot get freq at ep 0x85
usb 2-1.3: 1:1: cannot get freq at ep 0x2
....
Add the corresponding USB-device ID (1de7:0014) to
snd_usb_get_sample_rate_quirk() list.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=110221
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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On Skylake and onwards, the HD-audio controller driver needs to bind
with i915 for having the control of power well audio domain before
actually probing the codec. This leads to the load of i915 driver
from the audio driver side. But, there are systems that have no Intel
graphics but Nvidia or AMD GPU, although they still use HD-audio bus
for the onboard audio codecs. On these, loading the i915 driver is
nothing but a useless memory and CPU consumption.
A simple way to avoid it is just to look for the Intel graphics PCI
entry beforehand, and try to bind with i915 only when such an entry is
found. Currently, it assumes the PCI display class. If another class
appears, this needs to be extended (although it's very unlikely).
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes:
- a fix in ALSA timer core to avoid possible BUG() trigger
- a fix in ALSA timer core 32bit compat layer
- a few HD-audio quirks for ASUS and HP machines
- AMD HD-audio HDMI controller quirks
- fixes of USB-audio double-free at some error paths
- a fix for memory leak in DICE driver at hotunplug"
* tag 'sound-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: timer: Use mod_timer() for rearming the system timer
ALSA: hda - fix front mic problem for a HP desktop
ALSA: usb-audio: Fix double-free in error paths after snd_usb_add_audio_stream() call
ALSA: hda: add AMD Polaris-10/11 AZ PCI IDs with proper driver caps
ALSA: dice: fix memory leak when unplugging
ALSA: hda - Apply fix for white noise on Asus N550JV, too
ALSA: hda - Fix white noise on Asus N750JV headphone
ALSA: hda - Asus N750JV external subwoofer fixup
ALSA: timer: fix gparams ioctl compatibility for different architectures
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ALSA system timer backend stops the timer via del_timer() without sync
and leaves del_timer_sync() at the close instead. This is because of
the restriction by the design of ALSA timer: namely, the stop callback
may be called from the timer handler, and calling the sync shall lead
to a hangup. However, this also triggers a kernel BUG() when the
timer is rearmed immediately after stopping without sync:
kernel BUG at kernel/time/timer.c:966!
Call Trace:
<IRQ>
[<ffffffff8239c94e>] snd_timer_s_start+0x13e/0x1a0
[<ffffffff8239e1f4>] snd_timer_interrupt+0x504/0xec0
[<ffffffff8122fca0>] ? debug_check_no_locks_freed+0x290/0x290
[<ffffffff8239ec64>] snd_timer_s_function+0xb4/0x120
[<ffffffff81296b72>] call_timer_fn+0x162/0x520
[<ffffffff81296add>] ? call_timer_fn+0xcd/0x520
[<ffffffff8239ebb0>] ? snd_timer_interrupt+0xec0/0xec0
....
It's the place where add_timer() checks the pending timer. It's clear
that this may happen after the immediate restart without sync in our
cases.
So, the workaround here is just to use mod_timer() instead of
add_timer(). This looks like a band-aid fix, but it's a right move,
as snd_timer_interrupt() takes care of the continuous rearm of timer.
Reported-by: Jiri Slaby <jslaby@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The front mic jack (pink color) can't detect any plug or unplug. After
applying this fix, both detecting function and recording function
work well.
BugLink: https://bugs.launchpad.net/bugs/1564712
Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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snd_usb_add_audio_stream() call
create_fixed_stream_quirk(), snd_usb_parse_audio_interface() and
create_uaxx_quirk() functions allocate the audioformat object by themselves
and free it upon error before returning. However, once the object is linked
to a stream, it's freed again in snd_usb_audio_pcm_free(), thus it'll be
double-freed, eventually resulting in a memory corruption.
This patch fixes these failures in the error paths by unlinking the audioformat
object before freeing it.
Based on a patch by Takashi Iwai <tiwai@suse.de>
[Note for stable backports:
this patch requires the commit 902eb7fd1e4a ('ALSA: usb-audio: Minor
code cleanup in create_fixed_stream_quirk()')]
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1283358
Reported-by: Ralf Spenneberg <ralf@spenneberg.net>
Cc: <stable@vger.kernel.org> # see the note above
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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This commit fixes garbled audio on Polaris-10/11 variants
Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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When some digi00x units are connected sequentially, userspace
applications are involved at bus-reset state on IEEE 1394 bus. In the
state, any communications can be canceled. Therefore, sound card
registration should be delayed till the bus gets calm.
This commit achieves it.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Some oxfw based units tends to fail asynchronous communication when
IEEE 1394 bus is under bus-reset state. When registering sound card
instance at unit probe callback, userspace applications can be involved
to the state.
This commit postpones the registration till the bus is calm.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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When some fireworks units are connected sequentially, userspace
applications are involved at bus-reset state on IEEE 1394 bus. In the
state, any communications can be canceled. Therefore, sound card
registration should be delayed till the bus gets calm.
This commit achieves it.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Some bebob based units tends to fail asynchronous communication when
IEEE 1394 bus is under bus-reset state. When registering sound card
instance at unit probe callback, userspace applications can be involved
to the state.
This commit postpones the registration till the bus is calm.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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registration
In former commit, ALSA dice driver postpone sound card registration after
IEEE 1394 bus is calm. This idea has advantages for the other drivers.
This commit adds a helper function for it to firewire-lib module. The
function is really for the specific purpose. Callers should initialize
delayed work structure with callback function.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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In former commit, ALSA dice driver doesn't generate kernel warnings
when unplugging units before initializing stream data.
This commit moves the initialization to delayed registration of sound
card, to simplify unit probe processing.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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stream data
When any of AMDTP stream data are not initialized and private data is
going to be released, WARN_ON() in amdtp_stream_destroy() is hit and
dump messages. This may take users irritated.
This commit fixes the bug to skip releasing when it's not initialized.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The hdac_acomp object in hdac_i915.c is left as assigned even after
binding with i915 actually fails, and this leads to the WARN_ON() at
the next load of the module.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94736
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The commit [d745f5e7b8b2: ALSA: hda - Add the pin / port mapping on
Intel ILK and VLV] introduced a WARN_ON() to check the pointer for
avoiding the double initializations. But hdac_acomp pointer wasn't
cleared at snd_hdac_i915_exit(), thus after reloading the HD-audio
driver, it may result in the false positive warning. This patch makes
sure to clear the leftover pointer at exit.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94736
Reported-by: Daniela Doras-prodan <daniela.doras-prodan@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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I forgot it.
Fixes: 3e78e1518e12('ALSA: firewire-tascam: add support for FW-1804')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Currently, model-specific quirks are detected out of information parser,
however it's natural to detect it in the parser.
This commit applies the idea.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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In former commit, 'struct device_info' is obsoleted, whereas private
structure still keeps a pointer to it.
This commit remove the member.
d6ce6bbd7d83('ALSA: oxfw: rename a structure so that it means backward compatibility to old drivers')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The 'vendor_id' argument is not used in the local function. Let's remove
it.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Since we have the fixed pin-port mapping for Intel IronLake (IbexPeak)
and Baytrail (ValleyView) platforms in the code side, now it's time to
add the support in the codec driver side. This patch simply enables
the i915 ELD notifier for these in addition with the fix of the
mapping from the port to NID in the callback.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Intel IronLake and ValleyView platforms have different HDMI widget pin
and digital port mapping from other newer ones. The recent ones
(HSW+) have NID 0x05 to 0x07 for port B to port D, while these chips
have NID 0x04 to 0x06.
For adapting this mapping, pass the codec object instead of the bus
object to snd_hdac_sync_audio_rate() and snd_hdac_acomp_get_eld() so
that they can check the codec ID and calculate the mapping properly.
The changes in the HDMI codec driver side will follow in the later
patch.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Intel SandyBridge and IvyBridge (CougarPoint and PantherPoint
platforms) have also the same digital port vs audio widget mapping
(from port B = NID 0x05 to port D = NID 0x07) as Haswell & co.
So, we can reuse the existing functions for HSW+ for these platforms
without changing there, but just by re-adding the on-demand i915
binding in HDMI codec driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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For reducing the splat of is_haswell_plus() or such macros, this patch
introduces pin_cvt_fixup() ops to hdmi_spec. For HSW+ and VLV+
codecs, set this ops so that the driver can call the Intel-specific
workarounds appropriately.
A gratis bonus that we can remove the mux_id argument from
hdmi_choose_cvt(), too, since the fixup function always refers the
mux_idx from the given per_pin object.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Instead of checking at each time with is_haswell_plus() macro,
override the setup_stream ops itself for HSW+ chips.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The need for reprogramming the AMP mute bit at each audio info frame
setup isn't always specific to Intel chips. It's safer to set it
generically for all codecs with the amp bit, as this verb execution
itself isn't too much load. This eliminates one usage of
is_haswell_plus() macro, after all.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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We have too many Intel-specific codes in patch_hdmi_generic() despite
its function name. And this makes it difficult to adjust per chipset,
e.g. for allowing the audio notifier on an old chipset, one would need
to add an explicit if() check.
This patch attempts some code refactoring and cleanups in this regard;
the Intel-specific codes are moved out of patch_generic_hdmi() into
the new functions, patch_i915_hsw_hdmi() and patch_i915_byt_hdmi(),
depending on the chipset. The other old Intel chipsets keep using
patch_generic_hdmi() without Intel hacks. The existing
patch_generic_hdmi() is also split to a few components so that they
can be called from the Intel codec parsers.
There are still many is_haswell*() and is_valleyview*() macro usages
in the code. They will be cleaned up later. For the time being, only
the entry are concerned.
Along with this change, the i915_bound flag and the on-demand i915
component binding have been removed as a cleanup, since there is no
user at this moment. This will be added back later once when Cougar
Point and else start using the i915 eld notifier.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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When sound card is going to be released, dice private data is
also released. Then all of data should be released. However,
stream data is not released. This causes memory leak when
unplugging dice unit.
This commit fixes the bug.
Fixes: 4bdc495c87b3('ALSA: dice: handle several PCM substreams when any isochronous streams are available')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Apply the new fixup that is used for ASUS N750JV to another similar
model, N500JV, too, for reducing the headphone noise.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=115181
Signed-off-by: Bobi Mihalca <bobbymihalca@touchtech.ro>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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For reducing the noise from the headphone output on ASUS N750JV,
call the existing fixup, alc_fixup_auto_mute_via_amp(), additionally.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=115181
Signed-off-by: Bobi Mihalca <bobbymihalca@touchtech.ro>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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ASUS N750JV needs the same fixup as N550 for enabling its subwoofer.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=115181
Signed-off-by: Bobi Mihalca <bobbymihalca@touchtech.ro>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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'struct snd_timer_gparams' includes some members with 'unsigned long',
therefore its size differs depending on data models of architecture. As
a result, x86/x32 applications fail to execute ioctl(2) with
SNDRV_TIMER_GPARAMS command on x86_64 machine.
This commit fixes this bug by adding a pair of structure and ioctl
command for the compatibility.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The previous pull request introduced a few WARN_ON() for Intel
HD-audio HDMI. Indeed it caught bugs, and now users get annoyed. So
this request came up: a collection of small fixes to paper over the
inconsistencies on (mostly) old Intel chipsets.
In addition, a trivial USB-audio quirk is included, too"
* tag 'sound-fix-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix missing ELD update at unplugging
ALSA: usb-audio: add Microsoft HD-5001 to quirks
ALSA: hda - Workaround for unbalanced i915 power refcount by concurrent probe
ALSA: hda - Fix spurious kernel WARNING on Baytrail HDMI
ALSA: hda - Fix forgotten HDMI monitor_present update
ALSA: hda - Really restrict i915 notifier to HSW+
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i915 get_eld ops may return an error when no encoder is connected, and
currently we regard the error as fatal and skip the whole ELD
handling. This ended up with the missing ELD update at unplugging.
This patch fixes the issue by treating the error as the unplugged
state, instead of skipping the rest.
Reported-by: Libin Yang <libin.yang@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.5
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The Microsoft HD-5001 webcam microphone does not support sample rate
reading as the HD-5000 one.
This results in dmesg errors and sound hanging with pulseaudio.
Signed-off-by: Victor Clément <victor.clement@openmailbox.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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