diff options
Diffstat (limited to 'include/linux/regmap.h')
| -rw-r--r-- | include/linux/regmap.h | 55 |
1 files changed, 52 insertions, 3 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 02d84e2..a10380b 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -15,6 +15,8 @@ #include <linux/list.h> #include <linux/rbtree.h> +#include <linux/err.h> +#include <linux/bug.h> struct module; struct device; @@ -23,6 +25,7 @@ struct irq_domain; struct spi_device; struct regmap; struct regmap_range_cfg; +struct regmap_field; /* An enum of all the supported cache types */ enum regcache_type { @@ -394,10 +397,15 @@ bool regmap_can_raw_write(struct regmap *map); int regcache_sync(struct regmap *map); int regcache_sync_region(struct regmap *map, unsigned int min, unsigned int max); +int regcache_drop_region(struct regmap *map, unsigned int min, + unsigned int max); void regcache_cache_only(struct regmap *map, bool enable); void regcache_cache_bypass(struct regmap *map, bool enable); void regcache_mark_dirty(struct regmap *map); +bool regmap_check_range_table(struct regmap *map, unsigned int reg, + const struct regmap_access_table *table); + int regmap_register_patch(struct regmap *map, const struct reg_default *regs, int num_regs); @@ -412,6 +420,36 @@ bool regmap_reg_in_ranges(unsigned int reg, unsigned int nranges); /** + * Description of an register field + * + * @reg: Offset of the register within the regmap bank + * @lsb: lsb of the register field. + * @reg: msb of the register field. + */ +struct reg_field { + unsigned int reg; + unsigned int lsb; + unsigned int msb; +}; + +#define REG_FIELD(_reg, _lsb, _msb) { \ + .reg = _reg, \ + .lsb = _lsb, \ + .msb = _msb, \ + } + +struct regmap_field *regmap_field_alloc(struct regmap *regmap, + struct reg_field reg_field); +void regmap_field_free(struct regmap_field *field); + +struct regmap_field *devm_regmap_field_alloc(struct device *dev, + struct regmap *regmap, struct reg_field reg_field); +void devm_regmap_field_free(struct device *dev, struct regmap_field *field); + +int regmap_field_read(struct regmap_field *field, unsigned int *val); +int regmap_field_write(struct regmap_field *field, unsigned int val); + +/** * Description of an IRQ for the generic regmap irq_chip. * * @reg_offset: Offset of the status/mask register within the bank @@ -434,6 +472,9 @@ struct regmap_irq { * @ack_base: Base ack address. If zero then the chip is clear on read. * @wake_base: Base address for wake enables. If zero unsupported. * @irq_reg_stride: Stride to use for chips where registers are not contiguous. + * @init_ack_masked: Ack all masked interrupts once during initalization. + * @mask_invert: Inverted mask register: cleared bits are masked out. + * @wake_invert: Inverted wake register: cleared bits are wake enabled. * @runtime_pm: Hold a runtime PM lock on the device when accessing it. * * @num_regs: Number of registers in each control bank. @@ -449,9 +490,10 @@ struct regmap_irq_chip { unsigned int ack_base; unsigned int wake_base; unsigned int irq_reg_stride; - unsigned int mask_invert; - unsigned int wake_invert; - bool runtime_pm; + bool init_ack_masked:1; + bool mask_invert:1; + bool wake_invert:1; + bool runtime_pm:1; int num_regs; @@ -562,6 +604,13 @@ static inline int regcache_sync_region(struct regmap *map, unsigned int min, return -EINVAL; } +static inline int regcache_drop_region(struct regmap *map, unsigned int min, + unsigned int max) +{ + WARN_ONCE(1, "regmap API is disabled"); + return -EINVAL; +} + static inline void regcache_cache_only(struct regmap *map, bool enable) { WARN_ONCE(1, "regmap API is disabled"); |