ALSA: hda - Move codec suspend/resume to codec driver

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This patch moves the suspend/resume mechanisms down to each codec
driver level, as we have a proper codec driver bound on the bus now.
Then we get the asynchronous PM gratis without fiddling much in the
driver level.

As a soft-landing transition, implement the common suspend/resume pm
ops for hda_codec_driver and keep the each codec driver intact.  Only
the callers of suspend/resume in the controller side (azx_suspend()
and azx_resume()) are removed.

Another involved place is azx_bus_reset() calling the temporary
suspend and resume as a hackish method of bus reset.  The HD-audio
core provide a helper function snd_hda_bus_reset() instead.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

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This commit is contained in:

Takashi Iwai 2015-02-18 15:39:59 +01:00

parent d8a766a16e

commit 59ed1eade1

6 changed files with 39 additions and 86 deletions

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3

sound/pci/hda/hda_bind.c

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93

sound/pci/hda/hda_codec.c

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6

sound/pci/hda/hda_codec.h

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11

sound/pci/hda/hda_controller.c

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6

sound/pci/hda/hda_intel.c

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6

sound/pci/hda/hda_tegra.c

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