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Commit eb4cb76f authored by Mark Brown's avatar Mark Brown
Browse files

regmap: cache: Store caches in native register format where possible 



This allows the cached data to be sent directly to the device when
we sync it.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 8a819ff8

drivers/base/regmap/regcache.c

+14 −2
Original line number Diff line number Diff line
@@ -45,7 +45,7 @@ static int regcache_hw_init(struct regmap *map) 
		tmp_buf = kmalloc(map->cache_size_raw, GFP_KERNEL);

		if (!tmp_buf)

			return -EINVAL;

		ret = regmap_bulk_read(map, 0, tmp_buf,

		ret = regmap_raw_read(map, 0, tmp_buf,

				      map->num_reg_defaults_raw);

		map->cache_bypass = cache_bypass;

		if (ret < 0) {
@@ -421,6 +421,13 @@ bool regcache_set_val(struct regmap *map, void *base, unsigned int idx, 
	if (regcache_get_val(map, base, idx) == val)

		return true;



	/* Use device native format if possible */

	if (map->format.format_val) {

		map->format.format_val(base + (map->cache_word_size * idx),

				       val, 0);

		return false;

	}



	switch (map->cache_word_size) {

	case 1: {

		u8 *cache = base;
@@ -449,6 +456,11 @@ unsigned int regcache_get_val(struct regmap *map, const void *base, 
	if (!base)

		return -EINVAL;



	/* Use device native format if possible */

	if (map->format.parse_val)

		return map->format.parse_val(base +

					     (map->cache_word_size * idx));



	switch (map->cache_word_size) {

	case 1: {

		const u8 *cache = base;