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ASoC: soc-cache: Introduce raw bulk write support

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As it has become more common to have to write firmware or similar
large chunks of data to the hardware, add a function to perform
raw bulk writes that bypass the cache.  This only handles volatile
registers as we should avoid getting out of sync with the actual
cache.

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Dimitris Papastamos
2011-03-22 10:37:03 +00:00
committed by Mark Brown
parent f3594f5c5c
commit 5fb609d435
3 changed files with 49 additions and 0 deletions
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3
include/sound/soc.h
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@@ -543,6 +543,7 @@ struct snd_soc_codec {
unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
unsigned int (*read)(struct snd_soc_codec *, unsigned int);
int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
int (*bulk_write_raw)(struct snd_soc_codec *, unsigned int, const void *, size_t);
void *reg_cache;
const void *reg_def_copy;
const struct snd_soc_cache_ops *cache_ops;
@@ -814,6 +815,8 @@ struct soc_enum {
unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
unsigned int snd_soc_write(struct snd_soc_codec *codec,
unsigned int reg, unsigned int val);
unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
unsigned int reg, const void *data, size_t len);
/* device driver data */