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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-07-05 15:12:22 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-07-05 15:12:22 +0100 |
| commit | 096e49d5e6f7bd93395e7ddf7e0239e1644d0505 (patch) | |
| tree | 8247ad9e691171481fa00fd3cb301bb4f03779d8 /include/sound/soc.h | |
| parent | af0adf3e81dbcf782388b8a7d0d7094ef5e70f50 (diff) | |
| download | lwn-096e49d5e6f7bd93395e7ddf7e0239e1644d0505.tar.gz lwn-096e49d5e6f7bd93395e7ddf7e0239e1644d0505.zip | |
ASoC: Add CODEC volatile register operation
Add a volatile_register() operation to the CODEC structure providing a
standard operation to query if a register is volatile. This will be used
to factor out the register cache I/O operations for the CODECs.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/sound/soc.h')
| -rw-r--r-- | include/sound/soc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h index e6704c0a4404..94fcc65609b6 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -191,6 +191,7 @@ int snd_soc_register_platform(struct snd_soc_platform *platform); void snd_soc_unregister_platform(struct snd_soc_platform *platform); int snd_soc_register_codec(struct snd_soc_codec *codec); void snd_soc_unregister_codec(struct snd_soc_codec *codec); +int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg); #ifdef CONFIG_PM int snd_soc_suspend_device(struct device *dev); @@ -361,6 +362,7 @@ struct snd_soc_codec { int (*write)(struct snd_soc_codec *, unsigned int, unsigned int); int (*display_register)(struct snd_soc_codec *, char *, size_t, unsigned int); + int (*volatile_register)(unsigned int); hw_write_t hw_write; hw_read_t hw_read; void *reg_cache; |