diff options
Diffstat (limited to 'include/regmap.h')
-rw-r--r-- | include/regmap.h | 146 |
1 files changed, 30 insertions, 116 deletions
diff --git a/include/regmap.h b/include/regmap.h index 3bcd9fe038..f2c395a896 100644 --- a/include/regmap.h +++ b/include/regmap.h @@ -2,121 +2,35 @@ #ifndef __REGMAP_H #define __REGMAP_H -/** - * 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. - * @reg_stride: The register address stride. Valid register addresses are a - * multiple of this value. If set to 0, a value of 1 will be - * used. - * @pad_bits: Number of bits of padding between register and value. - * @val_bits: Number of bits in a register value, mandatory. - * - * @max_register: Optional, specifies the maximum valid register index. - */ -struct regmap_config { - const char *name; - - int reg_bits; - int reg_stride; - int pad_bits; - int val_bits; - - unsigned int max_register; -}; - -typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg, - unsigned int *val); -typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg, - unsigned int val); - -struct regmap_bus { - regmap_hw_reg_write reg_write; - regmap_hw_reg_read reg_read; -}; - -struct device_d; -struct device_node; - -struct regmap *regmap_init(struct device_d *dev, - const struct regmap_bus *bus, - void *bus_context, - const struct regmap_config *config); - -struct clk; - -/** - * of_regmap_init_mmio_clk() - Initialise register map with register clock - * - * @np: Device node that will be interacted with - * @clk_id: register clock consumer ID - * @regs: Pointer to memory-mapped IO region - * @config: Configuration for register map - * - * The return value will be an ERR_PTR() on error or a valid pointer to - * a struct regmap. - */ -struct regmap *of_regmap_init_mmio_clk(struct device_node *np, const char *clk_id, - void __iomem *regs, - const struct regmap_config *config); - -/** - * regmap_init_mmio_clk() - Initialise register map with register clock - * - * @dev: Device that will be interacted with - * @clk_id: register clock consumer ID - * @regs: Pointer to memory-mapped IO region - * @config: Configuration for register map - * - * The return value will be an ERR_PTR() on error or a valid pointer to - * a struct regmap. - */ -struct regmap *regmap_init_mmio_clk(struct device_d *dev, const char *clk_id, - void __iomem *regs, - const struct regmap_config *config); - -/** - * regmap_init_mmio() - Initialise register map - * - * @dev: Device that will be interacted with - * @regs: Pointer to memory-mapped IO region - * @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_mmio(dev, regs, config) \ - regmap_init_mmio_clk(dev, NULL, regs, config) - - -int regmap_mmio_attach_clk(struct regmap *map, struct clk *clk); -void regmap_mmio_detach_clk(struct regmap *map); - -void regmap_exit(struct regmap *map); - -struct regmap *dev_get_regmap(struct device_d *dev, const char *name); -struct regmap *of_node_to_regmap(struct device_node *node); - -int regmap_register_cdev(struct regmap *map, const char *name); - -int regmap_write(struct regmap *map, unsigned int reg, unsigned int val); -int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val); - -int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, - size_t val_len); -int regmap_bulk_write(struct regmap *map, unsigned int reg, - const void *val, size_t val_len); - -int regmap_get_val_bytes(struct regmap *map); -int regmap_get_max_register(struct regmap *map); -int regmap_get_reg_stride(struct regmap *map); - -int regmap_write_bits(struct regmap *map, unsigned int reg, - unsigned int mask, unsigned int val); -int regmap_update_bits(struct regmap *map, unsigned int reg, - unsigned int mask, unsigned int val); +#include <linux/compiler.h> +#include <linux/types.h> + +extern void __compiletime_error("Last argument is now number of registers, not bytes. Fix " + "it and include <linux/regmap.h> instead") +__regmap_bulk_api_changed(void); + +struct regmap; + +#ifndef regmap_bulk_read +#define regmap_bulk_read regmap_bulk_read +static inline int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val, + size_t val_bytes) +{ + __regmap_bulk_api_changed(); + return -1; +} +#endif + +#ifndef regmap_bulk_write +#define regmap_bulk_write regmap_bulk_write +static inline int regmap_bulk_write(struct regmap *map, unsigned int reg, + const void *val, size_t val_bytes) +{ + __regmap_bulk_api_changed(); + return -1; +} +#endif + +#include <linux/regmap.h> #endif /* __REGMAP_H */ |