The M3800 is very minor workstation variant of the XPS 15 which has
already been patched for this issue. I figured it's probably more
important for this version of the laptop to be patched than the
regular XPS as Dell sells is pre-configured with Ubuntu to be used as
a Linux workstation. I have tested the patch on my the hardware on
Linux 4.2.0.
Signed-off-by: Niranjan Sivakumar <ns253@cornell.edu>
Cc: <stable@vger.kernel.org> # v4.1+
Signed-off-by: Takashi Iwai <tiwai@suse.de>
It turned out that the machine has a bass speaker, so take a correct
fixup entry.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=102501
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
According to the bug report, FSC Amilo laptops with ALC880 can detect
the headphone jack but currently the driver disables it. It's partly
intentionally, as non-working jack detect was reported in the past.
Let's enable now.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=102501
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Dell laptop has a series model to use the same codec but different subsystem ID.
At the same time they happens the white noise by login screen and headphone;
for fixing them together, I only can add these IDs to FIXUP function ALC292_FIXUP_DISABLE_AAMIX,
then try to solve such the similar issues.
Codec: Realtek ALC3235
Vendor Id: 0x10ec0293
Subsystem Id: 0x102806dd
Subsystem Id: 0x102806df
Subsystem Id: 0x102806e0
Cc: <stable@vger.kernel.org>
BugLink: https://bugs.launchpad.net/bugs/1492132
Signed-off-by: Woodrow Shen <woodrow.shen@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The port_mst_index parameter was reserved for future use, but
maintainers prefer to add it later when it is actually used.
[Note: this is an update patch to commit [51e1d83cab99: drm/i915: Call
audio pin/ELD notify function] where I mistakenly applied the older
version. Jani and Daniel's review tags were to the latest version,
so I add them below, too -- tiwai]
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Whenever there is an event from the i915 driver, wake the codec
and recheck plug/unplug + ELD status.
This fixes the issue with lost unsol events in power save mode,
the codec and controller can now sleep in D3 and still know when
the HDMI monitor has been connected.
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The variable pcm can be never NULL since it was rewritten with
list_for_each_entry().
Suggested-by: Markus Osterhoff <linux-kernel@k-raum.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In the commit [fa4f18b4f402: ALSA: hda - Refresh widgets sysfs at
probing Haswell+ HDMI codecs], snd_hdac_refresh_widget_sysfs() is
explicitly called in the codec driver. But this results in refreshing
twice, as snd_hdac_refresh_widget_sysfs() itself calls
snd_hdac_refresh_widgets() function.
Instead, we can replace the call in snd_hda_codec_update_widgets()
with snd_hdac_refresh_widget_sysfs(). This also fixes the missing
sysfs update for ca0132, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The widget power-saving code tries to turn up/down the power of each
widget in the I/O paths that are modified at each jack plug/unplug.
The recent report revealed that the power activation leaves some
widgets unpowered after plugging. This is because
snd_hda_activate_path() turns on path->active flag at the end of the
function while the path power management is done before that. Then
it's regarded as if nothing is active, and the driver turns off the
power.
The fix is simply to set the flag at the beginning of the function,
before trying to power up.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=102521
Cc: <stable@vger.kernel.org> [v4.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The is_active_nid_for_any() function in the generic parser is supposed
to check all connections from/to the given widget, but the current
code checks only the first input connection (index = 0).
This patch corrects the code to check all inputs by passing -1 to
index argument.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=102521
Cc: <stable@vger.kernel.org> [v4.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
After a for-loop was replaced by list_for_each_entry, see
Commit bbbc7e8502 ("ALSA: hda - Allocate hda_pcm objects dynamically"),
Commit 751e221689 ("ALSA: hda: fix possible null dereference"),
a possible NULL pointer dereference has been introduced; this patch adds
the NULL check on pcm->pcm, while leaving a potentially superfluous
check on pcm itself untouched.
Signed-off-by: Markus Osterhoff <linux-kernel@k-raum.org>
Cc: <stable@vger.kernel.org> #v4.1+
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Intel Haswell (and later) codec refreshes the widgets tree to expose
the whole widget nodes at probing. However, this refresh was missing
for sysfs tree.
This patch adds the missing piece, as we have now a proper API.
Reported-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
On shutdown/reboot of CX20722, first shut down all EAPDs, then
shut down the afg node to D3.
Failure to do so can lead to spurious noises from the internal speaker
directly after reboot (and before the codec is reinitialized again, i e
in BIOS setup or GRUB menus).
BugLink: https://bugs.launchpad.net/bugs/1487345
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The power states in a proc file are printed in a racy manner on a
single static string buffer. Fix it by calling snd_iprintf() directly
for each state instead of processing on a temporary buffer.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Many arrays in hda_proc.c are string arrays that should be covered by
const prefix for increasing the safety and reducing the size.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A few helper functions to convert the pin information to strings have
been exported with assumption that they were used by other drivers.
But they are referred only in the proc interface in the end.
Let's make them local so that we can get rid of a few exports.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Dell laptop causes the white noise by login screen and headphone,
and the fixup function ALC292_FIXUP_DISABLE_AAMIX can eliminate this
noise.
Codec: Realtek ALC3235
Vendor Id: 0x10ec0293
Subsystem Id: 0x102806db
Cc: <stable@vger.kernel.org>
BugLink: https://bugs.launchpad.net/bugs/1484334
Signed-off-by: Woodrow Shen <woodrow.shen@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Alienware 15 has CA0132 codec for its onboard sound, but the pin
config and mapping seem quite different from other Creative boards.
This patch corrects them, at least, for providing the right headphone
and mic jack notification, as well as removing the non-existing SPDIF
pins.
Even with this fix, not all stuff works perfectly yet, mainly because
of the badly written ca0132 driver code -- it has too many implicit
assumptions of pin configs and maps. Nevertheless, this is a small
good step forward.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=101981
Signed-off-by: Takashi Iwai <tiwai@suse.de>
It turned out that there are three variants of pin config values of
NID 0x17 on Dell laptops with ALC3266 (alias of ALC298): 0x90170110,
0x90170140 and 0x90170150. The first two have been already covered by
commits 703867e2f2 and 977e627684, so this commit adds the missing
last entry.
While we're at it, rearrange the three entries in the order of pincfg
values.
Reported-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The fixup ALC292_FIXUP_DISABLE_AAMIX can fix the white noise of
the headphone on this Dell machine.
Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The new Dell laptop with ALC3266 can't use internal microphone to
record. Also, the 3 ring headset mic doesn't work on it. For src of
patch_realtek.c, only the pin cfg of Nid 0x17 is different, so the
Nid 0x17 is added into pin quirk, and others are defined to macro
ALC298_STANDARD_PINS in common use.
Codec: Realtek ALC3266
Vendor Id: 0x10ec0298
Subsystem Id: 0x102806e5
BugLink: https://bugs.launchpad.net/bugs/1481575
Signed-off-by: Woodrow Shen <woodrow.shen@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
To cleanup the pin_quirk table:
- rewrite the pin_config_match(), comparing all pins on the machine
with the corresponding pins in the quirk table.
- remove all 0x4xxxxxxx pin configurations from pin_quirk table
- after removing the 0x4xxxxxxx pin configurations, some pin tables
are exactly same, so removing the redudant pin tables.
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
MacBook Pro 5,2 with ALC889 codec had already a fixup entry, but this
seems not working correctly, a fix for pin NID 0x15 is needed in
addition. It's equivalent with the fixup for MacBook Air 1,1, so use
this instead.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=102131
Reported-and-tested-by: Jeffery Miller <jefferym@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
PM ops could be triggered before HDA is done initializing
and cause PM to set HDA controller to D3Hot. This can result
in "CORB reset timeout#2, CORBRP = 65535" and "no codecs
initialized". Additionally, PM ops can be triggered before
azx_probe_continue finishes (async probe). This can result
in a NULL deref kernel crash.
To fix this, avoid PM ops if !chip->running.
Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Dell Vostro 5480 (1028:069a) needs the very same quirk used for Vostro
5470 model to make bass speakers properly working.
Reported-and-tested-by: Paulo Roberto de Oliveira Castro <p.oliveira.castro@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The new Dell laptop with codec 256 can't detect headset mic when
headset was inserted on the machine. From alsa-info, we check
init_pin_configs and need to define the new register value for pin
0x1d & 0x1e because the original macro ALC256_STANDARD_PINS can't
match pin definition. Also, the macro ALC256_STANDARD_PINS is
simplified by removing them. This makes headset mic works on laptop.
Codec: Realtek ALC256
Vendor Id: 0x10ec0256
Subsystem Id: 0x102806f2
BugLink: https://bugs.launchpad.net/bugs/1478497
Signed-off-by: Woodrow Shen <woodrow.shen@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Toshiba Satellite S50D has another model with a different PCI SSID
(1179:fa93) while the previous fixup was for 1179:fa91. Adjust the
fixup entry with SND_PCI_QUIRK_MASK() to match with both devices.
Reported-by: Tim Sample <timsample@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When the headset was plugged in the Dell desktop, the mic of headset
can't be detected and workable.
According to the alsa-info, we found the differece between alsa and
init_pin_configs on the machine, so we need to add the pin configs to
make headset work.
Codec: Realtek ALC3234
Vendor Id: 0x10ec0255
Subsystem Id: 0x102806bb
BugLink: https://bugs.launchpad.net/bugs/1477900
Signed-off-by: Woodrow Shen <woodrow.shen@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Smatch complains that we have nested checks for "spdif_present". It
turns out the current behavior isn't correct, we should remove the first
check and keep the second.
Fixes: 1077a02481 ('ALSA: hda - Use generic parser for Cirrus codec driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A lot of small fixes here, a few to the core:
- Fix for binding DAPM stream widgets on devices with prefixes assigned
to them
- Minor fixes for the newly added topology interfaces
- Locking and memory leak fixes for DAPM
- Driver specific fixes
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJVsnNFAAoJECTWi3JdVIfQH9cH/1ddueDFikvXSCyntuJcHAwJ
a7X5kCVdegMnaMK5fnAbTlJBpDIX/F1UBvsFQQ38eKWeneP44XnkXeh/32fGJzQO
L730dqy0tkgQdWJkQg0yxaP5/k0BfhnXeRc3ATUG3LBgUBrWRYLTIvaM+G+H3Kf5
K88QL7cKmeY0Kt6+cms3nnBj9x5oFgbHIW7Y3K/pza+XPVecZ7N3/5gpV+VQDUXh
Oz3cZOsC5h4+IpxkOrLXY7zgLvrt/HfRTO2QF/3Ntub81anAk190pVAquM+r/CTn
tQ3sPNGLglQ4VRXNP6yBKJOp5CUTBLt5XWlJ+Kg9p2OiiuOPla4wkhuGDS5AM64=
=nJJl
-----END PGP SIGNATURE-----
Merge tag 'asoc-fix-v4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.2
A lot of small fixes here, a few to the core:
- Fix for binding DAPM stream widgets on devices with prefixes assigned
to them
- Minor fixes for the newly added topology interfaces
- Locking and memory leak fixes for DAPM
- Driver specific fixes
Without this patch, the headset mic will not work on this machine.
BugLink: https://bugs.launchpad.net/bugs/1476987
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
One more Dell laptop with alc293 codec needs
ALC293_FIXUP_DELL1_MIC_NO_PRESENCE, but the pin 0x1e does not match
the corresponding one in the ALC292_STANDARD_PINS. To use this macro
for this machine, we need to remove pin 0x1e from it.
BugLink: https://bugs.launchpad.net/bugs/1476888
Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Vendor ID 0x10de007d is used by a yet-to-be-named GPU chip.
This chip also has the 2-ch audio swapping bug, so patch_nvhdmi is
appropriate here.
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When the controller is powered up but the HDMI codec is powered down
on Skylake, the power well is turned off. When the codec is then
powered up again, we need to poke the codec a little extra to make
sure it wakes up. Otherwise we'll get sad "no response from codec"
messages and broken audio.
This also changes azx_runtime_resume to actually call
snd_hdac_set_codec_wakeup for Skylake (before STATETS read).
(Otherwise it would only have been called for Haswell and Broadwell,
which both do not need it, so this probably was not the author's
intention.)
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Reviewed-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acer Aspire V5 with the ALC282 codec is given the wrong value for the
0x19 PIN by the laptop's BIOS. Overriding it with the correct value
adds support for the headset microphone which would not otherwise be
visible in the system.
The fix is based on commit 7819717b11 with a similar quirk for Acer
Aspire with the ALC269 codec.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=96201
Cc: <stable@vger.kernel.org>
Signed-off-by: Mateusz Sylwestrzak <matisec7@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
There are two small fixes for HD-audio and USB LINE6, and the rest are
a few new quirks and device ID addition that are good enough to get
into 4.2.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=EgRm
-----END PGP SIGNATURE-----
Merge tag 'sound-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"There are two small fixes for HD-audio and USB LINE6, and the rest are
a few new quirks and device ID addition that are good enough to get
into 4.2"
* tag 'sound-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: Enable HP amp and mute LED on HP Folio 9480m [v3]
ALSA: line6: Fix -EBUSY error during active monitoring
ALSA: hda - Fix a wrong busy check in alt PCM open
ALSA: hda - add codec ID for Broxton display audio codec
ALSA: usb-audio: Add MIDI support for Steinberg MI2/MI4
In kstrdup we should return -ENOMEM when it reports an
memory allocation failure, while the -ENODEV is referred
to a failure in finding the cpu node in the device tree.
Signed-off-by: Heloise NH <kernelpatch_update@163.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This laptop needs GPIO4 pulled high to enable the headphone amplifier,
and has a mute LED on GPIO3. I modelled the patch on the existing
GPIO4 code which pulls the line low for the same purpose; this time,
the HP amp line is pulled high.
v2: Disable the headphone amplifier when no headphone is connected.
Don't disable power savings to preserve the LED state.
v3: Remove headset-specific hooks and code; this is just a headphone.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Currently, the alt PCM open callback returns -EBUSY when an
independent HP is turned off, supposing that it conflicts with the
main PCM. However, obviously, this check is wrong when the
independent HP itself isn't enabled but the alt PCM was explicitly
created via alc_dac_nid by a codec driver.
Reported-and-tested-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch adds codec ID (0x8086280a) and module alias for Broxton
display codec.
Signed-off-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Here are a bunch of small fixes, mostly for HD-audio quirks, in
addition to a few regression fixes and trivial cleanups.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=DOli
-----END PGP SIGNATURE-----
Merge tag 'sound-fix-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are a bunch of small fixes, mostly for HD-audio quirks, in
addition to a few regression fixes and trivial cleanups"
* tag 'sound-fix-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: Fix uninintialized error return
ALSA: hda: Delete an unnecessary check before the function call "snd_info_free_entry"
ALSA: hda - Add a fixup for Dell E7450
ALSA: hda - Fix the dock headphone output on Fujitsu Lifebook E780
ALSA: hda - Add headset support to Acer Aspire V5
ALSA: hda - restore the MIC FIXUP for some Dell machines
ALSA: jack: Fix endless loop at unique index detection
ALSA: hda - set proper caps for newer AMD hda audio in KB/KV
ALSA: hda - Disable widget power-save for VIA codecs
ALSA: hda - Fix Dock Headphone on Thinkpad X250 seen as a Line Out
Main excitement here is Peter Zijlstra's lockless rbtree optimization to
speed module address lookup. He found some abusers of the module lock
doing that too.
A little bit of parameter work here too; including Dan Streetman's breaking
up the big param mutex so writing a parameter can load another module (yeah,
really). Unfortunately that broke the usual suspects, !CONFIG_MODULES and
!CONFIG_SYSFS, so those fixes were appended too.
Cheers,
Rusty.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=tWPQ
-----END PGP SIGNATURE-----
Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module updates from Rusty Russell:
"Main excitement here is Peter Zijlstra's lockless rbtree optimization
to speed module address lookup. He found some abusers of the module
lock doing that too.
A little bit of parameter work here too; including Dan Streetman's
breaking up the big param mutex so writing a parameter can load
another module (yeah, really). Unfortunately that broke the usual
suspects, !CONFIG_MODULES and !CONFIG_SYSFS, so those fixes were
appended too"
* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (26 commits)
modules: only use mod->param_lock if CONFIG_MODULES
param: fix module param locks when !CONFIG_SYSFS.
rcu: merge fix for Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE()
module: add per-module param_lock
module: make perm const
params: suppress unused variable error, warn once just in case code changes.
modules: clarify CONFIG_MODULE_COMPRESS help, suggest 'N'.
kernel/module.c: avoid ifdefs for sig_enforce declaration
kernel/workqueue.c: remove ifdefs over wq_power_efficient
kernel/params.c: export param_ops_bool_enable_only
kernel/params.c: generalize bool_enable_only
kernel/module.c: use generic module param operaters for sig_enforce
kernel/params: constify struct kernel_param_ops uses
sysfs: tightened sysfs permission checks
module: Rework module_addr_{min,max}
module: Use __module_address() for module_address_lookup()
module: Make the mod_tree stuff conditional on PERF_EVENTS || TRACING
module: Optimize __module_address() using a latched RB-tree
rbtree: Implement generic latch_tree
seqlock: Introduce raw_read_seqcount_latch()
...
The snd_info_free_entry() function tests whether its argument is NULL and
then returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>