linux/sound/pci/hda
Hans de Goede 1ba8f9d308 ALSA: hda: Add a power_save blacklist
On some boards setting power_save to a non 0 value leads to clicking /
popping sounds when ever we enter/leave powersaving mode. Ideally we would
figure out how to avoid these sounds, but that is not always feasible.

This commit adds a blacklist for devices where powersaving is known to
cause problems and disables it on these devices.

Note I tried to put this blacklist in userspace first:
https://github.com/systemd/systemd/pull/8128

But the systemd maintainers rightfully pointed out that it would be
impossible to then later remove entries once we actually find a way to
make power-saving work on listed boards without issues. Having this list
in the kernel will allow removal of the blacklist entry in the same commit
which fixes the clicks / plops.

The blacklist only applies to the default power_save module-option value,
if a user explicitly sets the module-option then the blacklist is not
used.

[ added an ifdef CONFIG_PM for the build error -- tiwai]

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1525104
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=198611
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-24 11:27:31 +01:00
..
ca0132_regs.h
dell_wmi_helper.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hda_auto_parser.c ALSA: hda - A new flag to enforce prefix to each pin 2017-04-10 17:44:39 +02:00
hda_auto_parser.h
hda_beep.c ALSA: hda-beep: Update authors dead email address 2015-06-13 09:13:26 +02:00
hda_beep.h ALSA: hda-beep: Update authors dead email address 2015-06-20 09:24:40 +02:00
hda_bind.c ALSA: hda: Fix forget to free resource in error handling code path in hda_codec_driver_probe 2017-09-04 17:33:53 +02:00
hda_codec.c ALSA: hda - Fix yet remaining issue with vmaster 0dB initialization 2017-11-22 12:34:56 +01:00
hda_codec.h ALSA: hda: Fix regression of hdmi eld control created based on invalid pcm 2017-09-03 16:33:42 +02:00
hda_controller_trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hda_controller.c ALSA: hda - Skip card registration when no codec is found 2017-06-28 12:45:34 +02:00
hda_controller.h ALSA: hda - Fix doubly initialization of i915 component 2017-06-30 08:58:53 +02:00
hda_eld.c ALSA: hda - Use snd_hdac namespace prefix for chmap exported APIs 2016-03-07 15:46:06 +01:00
hda_generic.c ALSA: hda - silence uninitialized variable warning in activate_amp_in() 2017-10-13 15:14:44 +02:00
hda_generic.h ALSA: hda - Allow to enable/disable vmaster build explicitly 2017-04-10 17:45:27 +02:00
hda_hwdep.c
hda_intel_trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hda_intel.c ALSA: hda: Add a power_save blacklist 2018-02-24 11:27:31 +01:00
hda_intel.h ALSA: hda - Spell vga_switcheroo consistently 2015-10-19 11:00:45 +02:00
hda_jack.c ALSA: hda - Fix bad dereference of jack object 2016-02-09 12:16:31 +01:00
hda_jack.h ALSA: hda - Fix bad dereference of jack object 2016-02-09 12:16:31 +01:00
hda_local.h ALSA: hda - Remove the generic bind ctl helpers 2017-05-17 07:13:10 +02:00
hda_proc.c ALSA: hda/proc - Fix racy string access for power states 2015-08-17 15:12:04 +02:00
hda_sysfs.c ALSA: hda: constify attribute_group structures. 2017-06-29 18:20:21 +02:00
hda_tegra.c ALSA: hda/tegra: iomem fixups for sparse warnings 2016-06-22 15:19:10 +02:00
Kconfig ALSA: hda - Use IS_REACHABLE() for dependency on input 2018-01-15 20:16:54 +01:00
local.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
patch_analog.c ALSA: hda: make snd_kcontrol_new const 2017-08-16 14:29:08 +02:00
patch_ca0110.c ALSA: hda - convert to hda_device_id 2015-10-20 10:15:20 +02:00
patch_ca0132.c ALSA: hda/ca0132 - use ARRAY_SIZE 2017-10-13 15:14:08 +02:00
patch_cirrus.c ALSA: hda - Apply the existing quirk to iMac 14,1 2018-01-10 11:11:54 +01:00
patch_cmedia.c ALSA: hda - convert to hda_device_id 2015-10-20 10:15:20 +02:00
patch_conexant.c ALSA: hda - Add MIC_NO_PRESENCE fixup for 2 HP machines 2017-12-22 10:25:00 +01:00
patch_hdmi.c ALSA: hda - Add vendor id for Cannonlake HDMI codec 2017-12-07 13:42:28 +01:00
patch_realtek.c ALSA: hda/realtek: PCI quirk for Fujitsu U7x7 2018-02-14 12:02:26 +01:00
patch_si3054.c ALSA: hda: Constify hw_constraints 2017-06-09 10:42:52 +02:00
patch_sigmatel.c ALSA: hda: make snd_kcontrol_new const 2017-08-16 14:29:08 +02:00
patch_via.c ALSA: hda - convert to hda_device_id 2015-10-20 10:15:20 +02:00
thinkpad_helper.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00