ASoC: SOF: Intel: hda: use hdac_ext fine-grained link management

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Opt-in to use snd_hdac_ext_bus_link_power() to manage HDA link
power up/down events.

This allows to reduce power consumption in cases where some HDA codecs
are suspended, but other child devices (HDA or non-HDA codecs) remain
active and controller itself remains in active state.

By using snd_hdac_ext_bus_link_power(), the individual HDA links can be
powered off and if all HDA codecs are powered down, the command DMA can
also be shut down.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210205184630.1938761-3-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Kai Vehmanen 2021-02-05 20:46:29 +02:00 • committed by Takashi Iwai

parent f9e5fd1b66

commit 87fc20e4a0

1 changed files with 9 additions and 1 deletions

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sound/soc/sof/intel/hda-bus.c

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