}
};
-static int max8998_i2c_device_read(struct max8998_dev *max8998, u8 reg, u8 *dest)
+int max8998_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest)
{
- struct i2c_client *client = max8998->i2c_client;
+ struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
int ret;
mutex_lock(&max8998->iolock);
- ret = i2c_smbus_read_byte_data(client, reg);
+ ret = i2c_smbus_read_byte_data(i2c, reg);
mutex_unlock(&max8998->iolock);
if (ret < 0)
return ret;
*dest = ret;
return 0;
}
+EXPORT_SYMBOL(max8998_read_reg);
-static int max8998_i2c_device_write(struct max8998_dev *max8998, u8 reg, u8 value)
+int max8998_write_reg(struct i2c_client *i2c, u8 reg, u8 value)
{
- struct i2c_client *client = max8998->i2c_client;
+ struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
int ret;
mutex_lock(&max8998->iolock);
- ret = i2c_smbus_write_byte_data(client, reg, value);
+ ret = i2c_smbus_write_byte_data(i2c, reg, value);
mutex_unlock(&max8998->iolock);
return ret;
}
+EXPORT_SYMBOL(max8998_write_reg);
-static int max8998_i2c_device_update(struct max8998_dev *max8998, u8 reg,
- u8 val, u8 mask)
+int max8998_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask)
{
- struct i2c_client *client = max8998->i2c_client;
+ struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
int ret;
mutex_lock(&max8998->iolock);
- ret = i2c_smbus_read_byte_data(client, reg);
+ ret = i2c_smbus_read_byte_data(i2c, reg);
if (ret >= 0) {
u8 old_val = ret & 0xff;
u8 new_val = (val & mask) | (old_val & (~mask));
- ret = i2c_smbus_write_byte_data(client, reg, new_val);
+ ret = i2c_smbus_write_byte_data(i2c, reg, new_val);
if (ret >= 0)
ret = 0;
}
mutex_unlock(&max8998->iolock);
return ret;
}
+EXPORT_SYMBOL(max8998_update_reg);
static int max8998_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
i2c_set_clientdata(i2c, max8998);
max8998->dev = &i2c->dev;
- max8998->i2c_client = i2c;
- max8998->dev_read = max8998_i2c_device_read;
- max8998->dev_write = max8998_i2c_device_write;
- max8998->dev_update = max8998_i2c_device_update;
+ max8998->i2c = i2c;
mutex_init(&max8998->iolock);
ret = mfd_add_devices(max8998->dev, -1,
static int max8998_ldo_is_enabled(struct regulator_dev *rdev)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8998->iodev->i2c;
int ret, reg, shift = 8;
u8 val;
if (ret)
return ret;
- ret = max8998_read_reg(max8998->iodev, reg, &val);
+ ret = max8998_read_reg(i2c, reg, &val);
if (ret)
return ret;
static int max8998_ldo_enable(struct regulator_dev *rdev)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8998->iodev->i2c;
int reg, shift = 8, ret;
ret = max8998_get_enable_register(rdev, ®, &shift);
if (ret)
return ret;
- return max8998_update_reg(max8998->iodev, reg, 1<<shift, 1<<shift);
+ return max8998_update_reg(i2c, reg, 1<<shift, 1<<shift);
}
static int max8998_ldo_disable(struct regulator_dev *rdev)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8998->iodev->i2c;
int reg, shift = 8, ret;
ret = max8998_get_enable_register(rdev, ®, &shift);
if (ret)
return ret;
- return max8998_update_reg(max8998->iodev, reg, 0, 1<<shift);
+ return max8998_update_reg(i2c, reg, 0, 1<<shift);
}
static int max8998_get_voltage_register(struct regulator_dev *rdev,
static int max8998_get_voltage(struct regulator_dev *rdev)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8998->iodev->i2c;
int reg, shift = 0, mask, ret;
u8 val;
if (ret)
return ret;
- ret = max8998_read_reg(max8998->iodev, reg, &val);
+ ret = max8998_read_reg(i2c, reg, &val);
if (ret)
return ret;
int min_uV, int max_uV)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8998->iodev->i2c;
int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
int previous_vol = 0;
const struct voltage_map_desc *desc;
/* wait for RAMP_UP_DELAY if rdev is BUCK1/2 and
* ENRAMP is ON */
if (ldo == MAX8998_BUCK1 || ldo == MAX8998_BUCK2) {
- max8998_read_reg(max8998->iodev, MAX8998_REG_ONOFF4, &val);
+ max8998_read_reg(i2c, MAX8998_REG_ONOFF4, &val);
if (val & (1 << 4)) {
en_ramp = true;
previous_vol = max8998_get_voltage(rdev);
}
}
- ret = max8998_update_reg(max8998->iodev, reg, i<<shift, mask<<shift);
+ ret = max8998_update_reg(i2c, reg, i<<shift, mask<<shift);
if (en_ramp == true) {
int difference = desc->min + desc->step*i - previous_vol/1000;
/**
* struct max8998_dev - max8998 master device for sub-drivers
* @dev: master device of the chip (can be used to access platform data)
- * @i2c_client: i2c client private data
- * @dev_read(): chip register read function
- * @dev_write(): chip register write function
- * @dev_update(): chip register update function
+ * @i2c: i2c client private data
* @iolock: mutex for serializing io access
*/
struct max8998_dev {
struct device *dev;
- struct i2c_client *i2c_client;
- int (*dev_read)(struct max8998_dev *max8998, u8 reg, u8 *dest);
- int (*dev_write)(struct max8998_dev *max8998, u8 reg, u8 val);
- int (*dev_update)(struct max8998_dev *max8998, u8 reg, u8 val, u8 mask);
+ struct i2c_client *i2c;
struct mutex iolock;
};
-static inline int max8998_read_reg(struct max8998_dev *max8998, u8 reg,
- u8 *value)
-{
- return max8998->dev_read(max8998, reg, value);
-}
-
-static inline int max8998_write_reg(struct max8998_dev *max8998, u8 reg,
- u8 value)
-{
- return max8998->dev_write(max8998, reg, value);
-}
-
-static inline int max8998_update_reg(struct max8998_dev *max8998, u8 reg,
- u8 value, u8 mask)
-{
- return max8998->dev_update(max8998, reg, value, mask);
-}
+extern int max8998_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest);
+extern int max8998_write_reg(struct i2c_client *i2c, u8 reg, u8 value);
+extern int max8998_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask);
#endif /* __LINUX_MFD_MAX8998_PRIV_H */