From 096e49d5e6f7bd93395e7ddf7e0239e1644d0505 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sun, 5 Jul 2009 15:12:22 +0100 Subject: 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 --- include/sound/soc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/sound') diff --git a/include/sound/soc.h b/include/sound/soc.h index e6704c0a440..94fcc65609b 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; -- cgit v1.2.3