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authorJean Delvare <khali@linux-fr.org>2011-11-04 11:00:47 (GMT)
committerJean Delvare <khali@endymion.delvare>2011-11-04 11:00:47 (GMT)
commit90f4102ce59226954edbe960b2434d8b3da5f086 (patch)
tree93fd275039932253b16ea125c1ba5eea2995b719 /drivers/hwmon/ads1015.c
parent371f2e083b9b081adf68d04fba4978a27dc4e618 (diff)
downloadlinux-90f4102ce59226954edbe960b2434d8b3da5f086.tar.xz
hwmon: Use i2c_smbus_{read,write}_word_swapped
Make use of the new i2c_smbus_{read,write}_word_swapped functions. This makes the driver code more compact and readable. It also ensures proper error handling. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Dirk Eibach <eibach@gdsys.de> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Guillaume Ligneul <guillaume.ligneul@gmail.com>
Diffstat (limited to 'drivers/hwmon/ads1015.c')
-rw-r--r--drivers/hwmon/ads1015.c21
1 files changed, 4 insertions, 17 deletions
diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c
index e9beeda..eedca3c 100644
--- a/drivers/hwmon/ads1015.c
+++ b/drivers/hwmon/ads1015.c
@@ -59,19 +59,6 @@ struct ads1015_data {
struct ads1015_channel_data channel_data[ADS1015_CHANNELS];
};
-static s32 ads1015_read_reg(struct i2c_client *client, unsigned int reg)
-{
- s32 data = i2c_smbus_read_word_data(client, reg);
-
- return (data < 0) ? data : swab16(data);
-}
-
-static s32 ads1015_write_reg(struct i2c_client *client, unsigned int reg,
- u16 val)
-{
- return i2c_smbus_write_word_data(client, reg, swab16(val));
-}
-
static int ads1015_read_value(struct i2c_client *client, unsigned int channel,
int *value)
{
@@ -87,7 +74,7 @@ static int ads1015_read_value(struct i2c_client *client, unsigned int channel,
mutex_lock(&data->update_lock);
/* get channel parameters */
- res = ads1015_read_reg(client, ADS1015_CONFIG);
+ res = i2c_smbus_read_word_swapped(client, ADS1015_CONFIG);
if (res < 0)
goto err_unlock;
config = res;
@@ -101,13 +88,13 @@ static int ads1015_read_value(struct i2c_client *client, unsigned int channel,
config |= (pga & 0x0007) << 9;
config |= (data_rate & 0x0007) << 5;
- res = ads1015_write_reg(client, ADS1015_CONFIG, config);
+ res = i2c_smbus_write_word_swapped(client, ADS1015_CONFIG, config);
if (res < 0)
goto err_unlock;
/* wait until conversion finished */
msleep(conversion_time_ms);
- res = ads1015_read_reg(client, ADS1015_CONFIG);
+ res = i2c_smbus_read_word_swapped(client, ADS1015_CONFIG);
if (res < 0)
goto err_unlock;
config = res;
@@ -117,7 +104,7 @@ static int ads1015_read_value(struct i2c_client *client, unsigned int channel,
goto err_unlock;
}
- res = ads1015_read_reg(client, ADS1015_CONVERSION);
+ res = i2c_smbus_read_word_swapped(client, ADS1015_CONVERSION);
if (res < 0)
goto err_unlock;
conversion = res;