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Date: Mon, 4 Mar 2013 09:14:40 +0800 From: Mark Brown <broonie@...nsource.wolfsonmicro.com> To: linux-kernel@...r.kernel.org Cc: Mark Brown <broonie@...nsource.wolfsonmicro.com> Subject: [PATCH 2/2] 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: Mark Brown <broonie@...nsource.wolfsonmicro.com> --- drivers/base/regmap/regcache.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 6948996..0f4fb8b 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -45,8 +45,8 @@ 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, - map->num_reg_defaults_raw); + ret = regmap_raw_read(map, 0, tmp_buf, + map->num_reg_defaults_raw); map->cache_bypass = cache_bypass; if (ret < 0) { kfree(tmp_buf); @@ -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; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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