forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

regmap: Use reg_sequence for multi_reg_write / register_patch

Browse source 
Separate the functionality using sequences of register writes from the
functions that take register defaults. This change renames the arguments
in order to support the extension of reg_sequence to take an optional
delay to be applied after any given register in a sequence is written.
This avoids adding an int to all register defaults, which could
substantially increase memory usage for regmaps with large default tables.

This also updates all the clients of multi_reg_write/register_patch.

Signed-off-by: Nariman Poushin <nariman@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Nariman Poushin 2015-07-16 16:36:21 +01:00 • committed by Mark Brown
parent d770e558e2
commit 8019ff6cfc
27 changed files with 62 additions and 51 deletions
Download patch file Download diff file Expand all files Collapse all files

17
include/linux/regmap.h
View file

@ -50,6 +50,17 @@ struct reg_default {
unsigned int def;
};
/**
* Register/value pairs for sequences of writes
*
* @reg: Register address.
* @def: Register value.
*/
struct reg_sequence {
unsigned int reg;
unsigned int def;
};
#ifdef CONFIG_REGMAP
enum regmap_endian {
@ -410,10 +421,10 @@ int regmap_raw_write(struct regmap *map, unsigned int reg,
const void *val, size_t val_len);
int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
size_t val_count);
int regmap_multi_reg_write(struct regmap *map, const struct reg_default *regs,
int regmap_multi_reg_write(struct regmap *map, const struct reg_sequence *regs,
int num_regs);
int regmap_multi_reg_write_bypassed(struct regmap *map,
const struct reg_default *regs,
const struct reg_sequence *regs,
int num_regs);
int regmap_raw_write_async(struct regmap *map, unsigned int reg,
const void *val, size_t val_len);
@ -450,7 +461,7 @@ 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 regmap_register_patch(struct regmap *map, const struct reg_sequence *regs,
int num_regs);
int regmap_parse_val(struct regmap *map, const void *buf,
unsigned int *val);