Commit 1aff0310 authored by Mark Brown's avatar Mark Brown

Merge remote-tracking branches 'regmap/topic/ac97', 'regmap/topic/doc' and...

Merge remote-tracking branches 'regmap/topic/ac97', 'regmap/topic/doc' and 'regmap/topic/smbus' into regmap-next
......@@ -235,6 +235,10 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg,
void regmap_async_complete_cb(struct regmap_async *async, int ret);
enum regmap_endian regmap_get_val_endian(struct device *dev,
const struct regmap_bus *bus,
const struct regmap_config *config);
extern struct regcache_ops regcache_rbtree_ops;
extern struct regcache_ops regcache_lzo_ops;
extern struct regcache_ops regcache_flat_ops;
......
......@@ -74,8 +74,8 @@ static int regmap_ac97_reg_write(void *context, unsigned int reg,
}
static const struct regmap_bus ac97_regmap_bus = {
.reg_write = regmap_ac97_reg_write,
.reg_read = regmap_ac97_reg_read,
.reg_write = regmap_ac97_reg_write,
.reg_read = regmap_ac97_reg_read,
};
/**
......
......@@ -14,6 +14,7 @@
#include <linux/i2c.h>
#include <linux/module.h>
#include "internal.h"
static int regmap_smbus_byte_reg_read(void *context, unsigned int reg,
unsigned int *val)
......@@ -87,6 +88,42 @@ static struct regmap_bus regmap_smbus_word = {
.reg_read = regmap_smbus_word_reg_read,
};
static int regmap_smbus_word_read_swapped(void *context, unsigned int reg,
unsigned int *val)
{
struct device *dev = context;
struct i2c_client *i2c = to_i2c_client(dev);
int ret;
if (reg > 0xff)
return -EINVAL;
ret = i2c_smbus_read_word_swapped(i2c, reg);
if (ret < 0)
return ret;
*val = ret;
return 0;
}
static int regmap_smbus_word_write_swapped(void *context, unsigned int reg,
unsigned int val)
{
struct device *dev = context;
struct i2c_client *i2c = to_i2c_client(dev);
if (val > 0xffff || reg > 0xff)
return -EINVAL;
return i2c_smbus_write_word_swapped(i2c, reg, val);
}
static struct regmap_bus regmap_smbus_word_swapped = {
.reg_write = regmap_smbus_word_write_swapped,
.reg_read = regmap_smbus_word_read_swapped,
};
static int regmap_i2c_write(void *context, const void *data, size_t count)
{
struct device *dev = context;
......@@ -180,7 +217,14 @@ static const struct regmap_bus *regmap_get_i2c_bus(struct i2c_client *i2c,
else if (config->val_bits == 16 && config->reg_bits == 8 &&
i2c_check_functionality(i2c->adapter,
I2C_FUNC_SMBUS_WORD_DATA))
return &regmap_smbus_word;
switch (regmap_get_val_endian(&i2c->dev, NULL, config)) {
case REGMAP_ENDIAN_LITTLE:
return &regmap_smbus_word;
case REGMAP_ENDIAN_BIG:
return &regmap_smbus_word_swapped;
default: /* everything else is not supported */
break;
}
else if (config->val_bits == 8 && config->reg_bits == 8 &&
i2c_check_functionality(i2c->adapter,
I2C_FUNC_SMBUS_BYTE_DATA))
......
......@@ -473,9 +473,9 @@ static enum regmap_endian regmap_get_reg_endian(const struct regmap_bus *bus,
return REGMAP_ENDIAN_BIG;
}
static enum regmap_endian regmap_get_val_endian(struct device *dev,
const struct regmap_bus *bus,
const struct regmap_config *config)
enum regmap_endian regmap_get_val_endian(struct device *dev,
const struct regmap_bus *bus,
const struct regmap_config *config)
{
struct device_node *np;
enum regmap_endian endian;
......@@ -513,6 +513,7 @@ static enum regmap_endian regmap_get_val_endian(struct device *dev,
/* Use this if no other value was found */
return REGMAP_ENDIAN_BIG;
}
EXPORT_SYMBOL_GPL(regmap_get_val_endian);
/**
* regmap_init(): Initialise register map
......
......@@ -468,7 +468,7 @@ bool regmap_reg_in_ranges(unsigned int reg,
*
* @reg: Offset of the register within the regmap bank
* @lsb: lsb of the register field.
* @reg: msb of the register field.
* @msb: msb of the register field.
* @id_size: port size if it has some ports
* @id_offset: address offset for each ports
*/
......
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