]> git.baikalelectronics.ru Git - kernel.git/commit
ALSA: hda: fix jack detection with Realtek codecs when in D3
authorKai Vehmanen <kai.vehmanen@linux.intel.com>
Mon, 12 Oct 2020 10:27:04 +0000 (13:27 +0300)
committerTakashi Iwai <tiwai@suse.de>
Mon, 12 Oct 2020 11:00:22 +0000 (13:00 +0200)
commit12d59254501139c9ee3eb91a1c9dd2d18cad66ba
tree63cb1052a84db0dbe1919034d3ed7f43e4d26b68
parentb7e0bb2f48927f12a593868014777ca004d733d1
ALSA: hda: fix jack detection with Realtek codecs when in D3

In case HDA controller becomes active, but codec is runtime suspended,
jack detection is not successful and no interrupt is raised. This has
been observed with multiple Realtek codecs and HDA controllers from
different vendors. Bug does not occur if both codec and controller are
active, or both are in suspend. Bug can be easily hit on desktop systems
with no built-in speaker.

The problem can be fixed by powering up the codec once after every
controller runtime resume. Even if codec goes back to suspend later, the
jack detection will continue to work. Add a flag to 'hda_codec' to
describe codecs that require this flow from the controller driver.
Modify __azx_runtime_resume() to use pm_request_resume() to make the
intent clearer.

Mark all Realtek codecs with the new forced_resume flag.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=209379
Cc: Kailang Yang <kailang@realtek.com>
Co-developed-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201012102704.794423-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
include/sound/hda_codec.h
sound/pci/hda/hda_intel.c
sound/pci/hda/patch_realtek.c