Commit 221ad7f2 authored by Mark Brown's avatar Mark Brown
Browse files

regmap: core: Provide regmap_can_raw_write() operation 



Mainly useful internally but exported since this is a public API that's
being checked for.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 8817796b

drivers/base/regmap/regmap.c

+12 −3
Original line number Diff line number Diff line
@@ -1097,6 +1097,17 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg, 
	return ret;

}



/**

 * regmap_can_raw_write - Test if regmap_raw_write() is supported

 *

 * @map: Map to check.

 */

bool regmap_can_raw_write(struct regmap *map)

{

	return map->bus && map->format.format_val && map->format.format_reg;

}

EXPORT_SYMBOL_GPL(regmap_can_raw_write);



static int _regmap_bus_formatted_write(void *context, unsigned int reg,

				       unsigned int val)

{
@@ -1220,12 +1231,10 @@ int regmap_raw_write(struct regmap *map, unsigned int reg, 
{

	int ret;



	if (!map->bus)

	if (!regmap_can_raw_write(map))

		return -EINVAL;

	if (val_len % map->format.val_bytes)

		return -EINVAL;

	if (reg % map->reg_stride)

		return -EINVAL;



	map->lock(map->lock_arg);

include/linux/regmap.h

+1 −0
Original line number Diff line number Diff line
@@ -389,6 +389,7 @@ int regmap_update_bits_check(struct regmap *map, unsigned int reg, 
			     bool *change);

int regmap_get_val_bytes(struct regmap *map);

int regmap_async_complete(struct regmap *map);

bool regmap_can_raw_write(struct regmap *map);



int regcache_sync(struct regmap *map);

int regcache_sync_region(struct regmap *map, unsigned int min,