[PATCH 0/1][SRU][I/U] New fix for jack detection after resume on CS8409 sound driver

[Chris Chiu]

BugLink: https://bugs.launchpad.net/bugs/1954773

[Impact]
On some platforms with Cirrus CS8409 audio codec, the external headset will fail to be detected after system resume.

[Fix]
Cirrus released a new fix commit 65cc4ad62a9e ('ALSA: hda/cs8409: Set PMSG_ON earlier inside cs8409 driver'). It sets the power_state to ON before the unsolicited event arrives to make sure the jack detection can be invoked after resume.

[Test]
Plug-in an external headset in front headset port, suspend/resume the system then check whether the headset function works as expected.

[Where problem could occur]
Low. It only affect the platforms with Cirrus codec CS8409 which used to have problem.

Stefan Binding (1):
  ALSA: hda/cs8409: Set PMSG_ON earlier inside cs8409 driver

 sound/pci/hda/hda_local.h    | 9 +++++++++
 sound/pci/hda/patch_cs8409.c | 5 +++++
 2 files changed, 14 insertions(+)

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2.25.1