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| author | Jean Delvare <khali@linux-fr.org> | 2011-11-04 12:00:47 +0100 |
|---|---|---|
| committer | Jean Delvare <khali@endymion.delvare> | 2011-11-04 12:00:47 +0100 |
| commit | 90f4102ce59226954edbe960b2434d8b3da5f086 (patch) | |
| tree | 93fd275039932253b16ea125c1ba5eea2995b719 /drivers/hwmon/lm73.c | |
| parent | 371f2e083b9b081adf68d04fba4978a27dc4e618 (diff) | |
| download | linux-90f4102ce59226954edbe960b2434d8b3da5f086.tar.bz2 | |
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/lm73.c')
| -rw-r--r-- | drivers/hwmon/lm73.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/hwmon/lm73.c b/drivers/hwmon/lm73.c index 24be17608fbb..9e64d96620d3 100644 --- a/drivers/hwmon/lm73.c +++ b/drivers/hwmon/lm73.c @@ -34,7 +34,7 @@ static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4c, #define LM73_REG_CTRL 0x04 #define LM73_REG_ID 0x07 -#define LM73_ID 0x9001 /* or 0x190 after a swab16() */ +#define LM73_ID 0x9001 /* 0x0190, byte-swapped */ #define DRVNAME "lm73" #define LM73_TEMP_MIN (-40) #define LM73_TEMP_MAX 150 @@ -57,7 +57,7 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da, /* Write value */ value = (short) SENSORS_LIMIT(temp/250, (LM73_TEMP_MIN*4), (LM73_TEMP_MAX*4)) << 5; - i2c_smbus_write_word_data(client, attr->index, swab16(value)); + i2c_smbus_write_word_swapped(client, attr->index, value); return count; } @@ -68,8 +68,8 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *da, struct i2c_client *client = to_i2c_client(dev); /* use integer division instead of equivalent right shift to guarantee arithmetic shift and preserve the sign */ - int temp = ((s16) (swab16(i2c_smbus_read_word_data(client, - attr->index)))*250) / 32; + int temp = ((s16) (i2c_smbus_read_word_swapped(client, + attr->index))*250) / 32; return sprintf(buf, "%d\n", temp); } |