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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2015-06-16 08:52:39 +0000
committerMark Brown <broonie@kernel.org>2015-07-10 11:38:00 +0100
commitfd4b7286ccc469bf5dde22db6b8fcc455c3c4a66 (patch)
tree04b3b7a077e81f1e8036c723963396b62bb91340 /drivers/base/regmap/regmap.c
parent7ff0589c7bff4ca31b255ac2028f633f14047762 (diff)
downloadlinux-linaro-stable-fd4b7286ccc469bf5dde22db6b8fcc455c3c4a66.tar.gz
regmap: add regmap_write_bits()
regmap_write_bits() is similar to regmap_update_bits(), but regmap_write_bits() write data to register even though it is same value. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/base/regmap/regmap.c')
-rw-r--r--drivers/base/regmap/regmap.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 69ec411ce722..d93bb9a8ab98 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -2375,6 +2375,29 @@ int regmap_update_bits(struct regmap *map, unsigned int reg,
EXPORT_SYMBOL_GPL(regmap_update_bits);
/**
+ * regmap_write_bits: Perform a read/modify/write cycle on the register map
+ *
+ * @map: Register map to update
+ * @reg: Register to update
+ * @mask: Bitmask to change
+ * @val: New value for bitmask
+ *
+ * Returns zero for success, a negative number on error.
+ */
+int regmap_write_bits(struct regmap *map, unsigned int reg,
+ unsigned int mask, unsigned int val)
+{
+ int ret;
+
+ map->lock(map->lock_arg);
+ ret = _regmap_update_bits(map, reg, mask, val, NULL, true);
+ map->unlock(map->lock_arg);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regmap_write_bits);
+
+/**
* regmap_update_bits_async: Perform a read/modify/write cycle on the register
* map asynchronously
*