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Merge branches 'regmap-core', 'regmap-mmio' and 'regmap-naming' into regmap-stride

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This commit is contained in:
Mark Brown 2012-04-10 11:01:07 +01:00
commit c0cc6fe1d0
11 changed files with 394 additions and 69 deletions
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24
include/linux/regmap.h
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@ -46,6 +46,9 @@ struct reg_default {
/**
* Configuration for the register map of a device.
*
* @name: Optional name of the regmap. Useful when a device has multiple
* register regions.
*
* @reg_bits: Number of bits in a register address, mandatory.
* @pad_bits: Number of bits of padding between register and value.
* @val_bits: Number of bits in a register value, mandatory.
@ -77,6 +80,8 @@ struct reg_default {
* @num_reg_defaults_raw: Number of elements in reg_defaults_raw.
*/
struct regmap_config {
const char *name;
int reg_bits;
int pad_bits;
int val_bits;
@ -97,18 +102,21 @@ struct regmap_config {
u8 write_flag_mask;
};
typedef int (*regmap_hw_write)(struct device *dev, const void *data,
typedef int (*regmap_hw_write)(void *context, const void *data,
size_t count);
typedef int (*regmap_hw_gather_write)(struct device *dev,
typedef int (*regmap_hw_gather_write)(void *context,
const void *reg, size_t reg_len,
const void *val, size_t val_len);
typedef int (*regmap_hw_read)(struct device *dev,
typedef int (*regmap_hw_read)(void *context,
const void *reg_buf, size_t reg_size,
void *val_buf, size_t val_size);
typedef void (*regmap_hw_free_context)(void *context);
/**
* Description of a hardware bus for the register map infrastructure.
*
* @fast_io: Register IO is fast. Use a spinlock instead of a mutex
* to perform locking.
* @write: Write operation.
* @gather_write: Write operation with split register/value, return -ENOTSUPP
* if not implemented on a given device.
@ -118,27 +126,37 @@ typedef int (*regmap_hw_read)(struct device *dev,
* a read.
*/
struct regmap_bus {
bool fast_io;
regmap_hw_write write;
regmap_hw_gather_write gather_write;
regmap_hw_read read;
regmap_hw_free_context free_context;
u8 read_flag_mask;
};
struct regmap *regmap_init(struct device *dev,
const struct regmap_bus *bus,
void *bus_context,
const struct regmap_config *config);
struct regmap *regmap_init_i2c(struct i2c_client *i2c,
const struct regmap_config *config);
struct regmap *regmap_init_spi(struct spi_device *dev,
const struct regmap_config *config);
struct regmap *regmap_init_mmio(struct device *dev,
void __iomem *regs,
const struct regmap_config *config);
struct regmap *devm_regmap_init(struct device *dev,
const struct regmap_bus *bus,
void *bus_context,
const struct regmap_config *config);
struct regmap *devm_regmap_init_i2c(struct i2c_client *i2c,
const struct regmap_config *config);
struct regmap *devm_regmap_init_spi(struct spi_device *dev,
const struct regmap_config *config);
struct regmap *devm_regmap_init_mmio(struct device *dev,
void __iomem *regs,
const struct regmap_config *config);
void regmap_exit(struct regmap *map);
int regmap_reinit_cache(struct regmap *map,