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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-02-01 18:46:10 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-02-03 18:03:37 +0000
commit8c961bcca1d10be4f2c06375eb561679167653a0 (patch)
tree568e0371807f25bf09d5948db1b798eb1ec49e01 /include/sound/soc.h
parent0f69d9782c6e6a7b0e60113a850845bc642c3f4e (diff)
ASoC: Allow CODECs to ask soc-cache to suppress physical writes
Currently the soc-cache code will always write to the device, meaning that we need the device to be powered and active at pretty much all times the system is active. Allowing cache only writes lays some groundwork for future enhancements to allow devices to be put into a full off state when the audio subsystem is idle. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'include/sound/soc.h')
-rw-r--r--include/sound/soc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 4bbeb9f83ece..4e8f14bc8ed3 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -423,6 +423,7 @@ struct snd_soc_codec {
short reg_cache_step;
unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */
+ unsigned int cache_only:1; /* Suppress writes to hardware */
/* dapm */
u32 pop_time;