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| author | Kai Vehmanen <kai.vehmanen@linux.intel.com> | 2021-02-05 19:46:29 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-02-08 15:56:51 +0100 |
| commit | 87fc20e4a0cbc01fdfc23aeba93f8ce2fc3dccda (patch) | |
| tree | 176460b7a50aa3b8c1a82feb8b17e741e64f6049 /kernel/rseq.c | |
| parent | ALSA: hda: add link_power op to hdac_bus_ops (diff) | |
| download | linux-87fc20e4a0cbc01fdfc23aeba93f8ce2fc3dccda.tar.xz linux-87fc20e4a0cbc01fdfc23aeba93f8ce2fc3dccda.zip | |
ASoC: SOF: Intel: hda: use hdac_ext fine-grained link management
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>
Diffstat (limited to 'kernel/rseq.c')
0 files changed, 0 insertions, 0 deletions