diff options
Diffstat (limited to 'drivers/hwmon/adm9240.c')
| -rw-r--r-- | drivers/hwmon/adm9240.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c index 98114cef1e43..72bf2489511e 100644 --- a/drivers/hwmon/adm9240.c +++ b/drivers/hwmon/adm9240.c @@ -98,13 +98,15 @@ static inline unsigned int IN_FROM_REG(u8 reg, int n) static inline u8 IN_TO_REG(unsigned long val, int n) { - return clamp_val(SCALE(val, 192, nom_mv[n]), 0, 255); + val = clamp_val(val, 0, nom_mv[n] * 255 / 192); + return SCALE(val, 192, nom_mv[n]); } /* temperature range: -40..125, 127 disables temperature alarm */ static inline s8 TEMP_TO_REG(long val) { - return clamp_val(SCALE(val, 1, 1000), -40, 127); + val = clamp_val(val, -40000, 127000); + return SCALE(val, 1, 1000); } /* two fans, each with low fan speed limit */ @@ -122,7 +124,8 @@ static inline unsigned int FAN_FROM_REG(u8 reg, u8 div) /* analog out 0..1250mV */ static inline u8 AOUT_TO_REG(unsigned long val) { - return clamp_val(SCALE(val, 255, 1250), 0, 255); + val = clamp_val(val, 0, 1250); + return SCALE(val, 255, 1250); } static inline unsigned int AOUT_FROM_REG(u8 reg) @@ -194,10 +197,10 @@ static struct adm9240_data *adm9240_update_device(struct device *dev) * 0.5'C per two measurement cycles thus ignore possible * but unlikely aliasing error on lsb reading. --Grant */ - data->temp = ((i2c_smbus_read_byte_data(client, + data->temp = (i2c_smbus_read_byte_data(client, ADM9240_REG_TEMP) << 8) | i2c_smbus_read_byte_data(client, - ADM9240_REG_TEMP_CONF)) / 128; + ADM9240_REG_TEMP_CONF); for (i = 0; i < 2; i++) { /* read fans */ data->fan[i] = i2c_smbus_read_byte_data(client, @@ -263,7 +266,7 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *dummy, char *buf) { struct adm9240_data *data = adm9240_update_device(dev); - return sprintf(buf, "%d\n", data->temp * 500); /* 9-bit value */ + return sprintf(buf, "%d\n", data->temp / 128 * 500); /* 9-bit value */ } static ssize_t show_max(struct device *dev, struct device_attribute *devattr, |
