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regmap: Add SoundWire bus support

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SoundWire bus provides sdw_read() and sdw_write() APIs for Slave
devices to program the registers. Provide support in regmap for
SoundWire bus.

Signed-off-by: Hardik T Shah <hardik.t.shah@intel.com>
Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vinod Koul 2018-01-08 15:50:59 +05:30 • committed by Mark Brown
parent a4887813c3
commit 7c22ce6e21
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
4 changed files with 130 additions and 0 deletions
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37
include/linux/regmap.h
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@ -30,6 +30,7 @@ struct regmap;
struct regmap_range_cfg;
struct regmap_field;
struct snd_ac97;
struct sdw_slave;
/* An enum of all the supported cache types */
enum regcache_type {
@ -526,6 +527,10 @@ struct regmap *__regmap_init_ac97(struct snd_ac97 *ac97,
const struct regmap_config *config,
struct lock_class_key *lock_key,
const char *lock_name);
struct regmap *__regmap_init_sdw(struct sdw_slave *sdw,
const struct regmap_config *config,
struct lock_class_key *lock_key,
const char *lock_name);
struct regmap *__devm_regmap_init(struct device *dev,
const struct regmap_bus *bus,
@ -563,6 +568,10 @@ struct regmap *__devm_regmap_init_ac97(struct snd_ac97 *ac97,
const struct regmap_config *config,
struct lock_class_key *lock_key,
const char *lock_name);
struct regmap *__devm_regmap_init_sdw(struct sdw_slave *sdw,
const struct regmap_config *config,
struct lock_class_key *lock_key,
const char *lock_name);
/*
* Wrapper for regmap_init macros to include a unique lockdep key and name
@ -711,6 +720,20 @@ int regmap_attach_dev(struct device *dev, struct regmap *map,
ac97, config)
bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg);
/**
* regmap_init_sdw() - Initialise register map
*
* @sdw: Device that will be interacted with
* @config: Configuration for register map
*
* The return value will be an ERR_PTR() on error or a valid pointer to
* a struct regmap.
*/
#define regmap_init_sdw(sdw, config) \
__regmap_lockdep_wrapper(__regmap_init_sdw, #config, \
sdw, config)
/**
* devm_regmap_init() - Initialise managed register map
*
@ -841,6 +864,20 @@ bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg);
__regmap_lockdep_wrapper(__devm_regmap_init_ac97, #config, \
ac97, config)
/**
* devm_regmap_init_sdw() - Initialise managed register map
*
* @sdw: Device that will be interacted with
* @config: Configuration for register map
*
* The return value will be an ERR_PTR() on error or a valid pointer
* to a struct regmap. The regmap will be automatically freed by the
* device management code.
*/
#define devm_regmap_init_sdw(sdw, config) \
__regmap_lockdep_wrapper(__devm_regmap_init_sdw, #config, \
sdw, config)
void regmap_exit(struct regmap *map);
int regmap_reinit_cache(struct regmap *map,
const struct regmap_config *config);