diff options
Diffstat (limited to 'include/linux/regmap.h')
| -rw-r--r-- | include/linux/regmap.h | 64 |
1 files changed, 61 insertions, 3 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h index fd41baccbf3e..3a96d068915f 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -506,6 +506,32 @@ struct regmap_range_cfg { unsigned int window_len; }; +/** + * struct regmap_sdw_mbq_cfg - Configuration for Multi-Byte Quantities + * + * @mbq_size: Callback returning the actual size of the given register. + * @deferrable: Callback returning true if the hardware can defer + * transactions to the given register. Deferral should + * only be used by SDCA parts and typically which controls + * are deferrable will be specified in either as a hard + * coded list or from the DisCo tables in the platform + * firmware. + * + * @timeout_us: The time in microseconds after which waiting for a deferred + * transaction should time out. + * @retry_us: The time in microseconds between polls of the function busy + * status whilst waiting for an opportunity to retry a deferred + * transaction. + * + * Provides additional configuration required for SoundWire MBQ register maps. + */ +struct regmap_sdw_mbq_cfg { + int (*mbq_size)(struct device *dev, unsigned int reg); + bool (*deferrable)(struct device *dev, unsigned int reg); + unsigned long timeout_us; + unsigned long retry_us; +}; + struct regmap_async; typedef int (*regmap_hw_write)(void *context, const void *data, @@ -652,6 +678,7 @@ struct regmap *__regmap_init_sdw(struct sdw_slave *sdw, const char *lock_name); struct regmap *__regmap_init_sdw_mbq(struct sdw_slave *sdw, const struct regmap_config *config, + const struct regmap_sdw_mbq_cfg *mbq_config, struct lock_class_key *lock_key, const char *lock_name); struct regmap *__regmap_init_spi_avmm(struct spi_device *spi, @@ -713,6 +740,7 @@ struct regmap *__devm_regmap_init_sdw(struct sdw_slave *sdw, const char *lock_name); struct regmap *__devm_regmap_init_sdw_mbq(struct sdw_slave *sdw, const struct regmap_config *config, + const struct regmap_sdw_mbq_cfg *mbq_config, struct lock_class_key *lock_key, const char *lock_name); struct regmap *__devm_regmap_init_slimbus(struct slim_device *slimbus, @@ -942,7 +970,22 @@ bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg); */ #define regmap_init_sdw_mbq(sdw, config) \ __regmap_lockdep_wrapper(__regmap_init_sdw_mbq, #config, \ - sdw, config) + sdw, config, NULL) + +/** + * regmap_init_sdw_mbq_cfg() - Initialise MBQ SDW register map with config + * + * @sdw: Device that will be interacted with + * @config: Configuration for register map + * @mbq_config: Properties for the MBQ registers + * + * 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 regmap_init_sdw_mbq_cfg(sdw, config, mbq_config) \ + __regmap_lockdep_wrapper(__regmap_init_sdw_mbq, #config, \ + sdw, config, mbq_config) /** * regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave @@ -1155,7 +1198,22 @@ bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg); */ #define devm_regmap_init_sdw_mbq(sdw, config) \ __regmap_lockdep_wrapper(__devm_regmap_init_sdw_mbq, #config, \ - sdw, config) + sdw, config, NULL) + +/** + * devm_regmap_init_sdw_mbq_cfg() - Initialise managed MBQ SDW register map with config + * + * @sdw: Device that will be interacted with + * @config: Configuration for register map + * @mbq_config: Properties for the MBQ registers + * + * 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_mbq_cfg(sdw, config, mbq_config) \ + __regmap_lockdep_wrapper(__devm_regmap_init_sdw_mbq, \ + #config, sdw, config, mbq_config) /** * devm_regmap_init_slimbus() - Initialise managed register map @@ -1244,7 +1302,7 @@ int regmap_noinc_read(struct regmap *map, unsigned int reg, void *val, size_t val_len); int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, size_t val_count); -int regmap_multi_reg_read(struct regmap *map, unsigned int *reg, void *val, +int regmap_multi_reg_read(struct regmap *map, const unsigned int *reg, void *val, size_t val_count); int regmap_update_bits_base(struct regmap *map, unsigned int reg, unsigned int mask, unsigned int val, |