ALSA: hda - Sync node attributes at resume from widget power saving
So far we assumed that the node attributes like amp values remain during the power state transition of the node itself. While this is true for IDT/STAC codecs I've tested, but some other codecs don't seem behaving in that way. This patch implements a partial sync mechanism specific to the given widget node. Now we've merged the regmap support, and it can be easily written with regcache_sync_region(). Tested-by:Hui Wang <hui.wang@canonical.com> Signed-off-by:
Takashi Iwai <tiwai@suse.de>
parent
664bc5c5
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