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authorMark Brown <broonie@linaro.org>2014-06-02 17:07:42 +0100
committerMark Brown <broonie@linaro.org>2014-06-02 17:07:42 +0100
commitef98ae45e6b3ea17d3ed27cec9afdd7e46f916ae (patch)
tree2e6073737a0b056842d9137314c2ab43db75d862 /drivers/base/regmap/regmap.c
parent522168d178208ff821b9bc37ffcd2442b80f6e6d (diff)
parentb42261078a91db8a8307db42cad41a619077d1df (diff)
downloadlinux-linaro-stable-ef98ae45e6b3ea17d3ed27cec9afdd7e46f916ae.tar.gz
Merge remote-tracking branch 'regmap/topic/smbus' into regmap-next
Diffstat (limited to 'drivers/base/regmap/regmap.c')
-rw-r--r--drivers/base/regmap/regmap.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 2615cc180d35..74d8c0672cf6 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -35,10 +35,14 @@ static int _regmap_update_bits(struct regmap *map, unsigned int reg,
unsigned int mask, unsigned int val,
bool *change);
+static int _regmap_bus_reg_read(void *context, unsigned int reg,
+ unsigned int *val);
static int _regmap_bus_read(void *context, unsigned int reg,
unsigned int *val);
static int _regmap_bus_formatted_write(void *context, unsigned int reg,
unsigned int val);
+static int _regmap_bus_reg_write(void *context, unsigned int reg,
+ unsigned int val);
static int _regmap_bus_raw_write(void *context, unsigned int reg,
unsigned int val);
@@ -537,6 +541,12 @@ struct regmap *regmap_init(struct device *dev,
map->defer_caching = false;
goto skip_format_initialization;
+ } else if (!bus->read || !bus->write) {
+ map->reg_read = _regmap_bus_reg_read;
+ map->reg_write = _regmap_bus_reg_write;
+
+ map->defer_caching = false;
+ goto skip_format_initialization;
} else {
map->reg_read = _regmap_bus_read;
}
@@ -1336,6 +1346,14 @@ static int _regmap_bus_formatted_write(void *context, unsigned int reg,
return ret;
}
+static int _regmap_bus_reg_write(void *context, unsigned int reg,
+ unsigned int val)
+{
+ struct regmap *map = context;
+
+ return map->bus->reg_write(map->bus_context, reg, val);
+}
+
static int _regmap_bus_raw_write(void *context, unsigned int reg,
unsigned int val)
{
@@ -1980,6 +1998,14 @@ static int _regmap_raw_read(struct regmap *map, unsigned int reg, void *val,
return ret;
}
+static int _regmap_bus_reg_read(void *context, unsigned int reg,
+ unsigned int *val)
+{
+ struct regmap *map = context;
+
+ return map->bus->reg_read(map->bus_context, reg, val);
+}
+
static int _regmap_bus_read(void *context, unsigned int reg,
unsigned int *val)
{