tree 8f4865f1f888d612697452ab280922440e67e24f
parent 01751f54ff23b9d59e07f9c9ef189d4733525463
author Takashi Iwai <tiwai@suse.de> 1186758220 +0200
committer Jaroslav Kysela <perex@perex.cz> 1192543121 +0200

[ALSA] hda-codec - introduce command register cache

This patch adds the cache for codec command registers.
snd_hda_codec_write_cache() and snd_hda_sequence_write_cache() do
the write operations with caching, which values can be resumed via
snd_hda_codec_resume_cache().
The patch introduces only the framework, and no codec code is using
this cache yet.  It'll be implemented in the following patch.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>