diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2014-11-18 19:45:52 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-11-19 10:46:03 +0000 |
| commit | 20feb881988cdf5f53304c355ae8ee3bf82e80ec (patch) | |
| tree | 195f81489bd8935cd1103d469b068c5181562bba /include/sound | |
| parent | f114040e3ea6e07372334ade75d1ee0775c355e1 (diff) | |
| download | linux-20feb881988cdf5f53304c355ae8ee3bf82e80ec.tar.bz2 | |
ASoC: Add helper functions for deferred regmap setup
Some drivers (most notably the AC'97 drivers) do not have access to their
regmap struct when the component/codec is registered. For those drivers the
automatic regmap setup will not work and needs to be done manually,
typically from the component/CODEC drivers probe callback.
This patch adds a set of helper function to handle deferred regmap
initialization as well as early regmap tear-down.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/soc.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h index 7ba7130037a0..342b43b3799e 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1277,6 +1277,41 @@ void snd_soc_component_async_complete(struct snd_soc_component *component); int snd_soc_component_test_bits(struct snd_soc_component *component, unsigned int reg, unsigned int mask, unsigned int value); +void snd_soc_component_init_regmap(struct snd_soc_component *component, + struct regmap *regmap); +void snd_soc_component_exit_regmap(struct snd_soc_component *component); + +/** + * snd_soc_codec_init_regmap() - Initialize regmap instance for the CODEC + * @codec: The CODEC for which to initialize the regmap instance + * @regmap: The regmap instance that should be used by the CODEC + * + * This function allows deferred assignment of the regmap instance that is + * associated with the CODEC. Only use this if the regmap instance is not yet + * ready when the CODEC is registered. The function must also be called before + * the first IO attempt of the CODEC. + */ +static inline void snd_soc_codec_init_regmap(struct snd_soc_codec *codec, + struct regmap *regmap) +{ + snd_soc_component_init_regmap(&codec->component, regmap); +} + +/** + * snd_soc_codec_exit_regmap() - De-initialize regmap instance for the CODEC + * @codec: The CODEC for which to de-initialize the regmap instance + * + * Calls regmap_exit() on the regmap instance associated to the CODEC and + * removes the regmap instance from the CODEC. + * + * This function should only be used if snd_soc_codec_init_regmap() was used to + * initialize the regmap instance. + */ +static inline void snd_soc_codec_exit_regmap(struct snd_soc_codec *codec) +{ + snd_soc_component_exit_regmap(&codec->component); +} + /* device driver data */ static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card, |