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hwmon: (w83795) Get rid of VRLSB_SHIFT 

VRLSB_SHIFT is a non-sense, the actual shift depends on the sensor
type (fans need 4, other sensors need 6). Get rid of it to prevent
any confusion. Also get rid of the useless masking, the meaningful
bits are always the MSb so there's nothing to mask out after
shifting.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Jean Delvare 2010-10-28 20:31:47 +02:00 committed by Jean Delvare
parent c1a792a6ee
commit a654b9d4e7
1 changed files with 5 additions and 10 deletions
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15
drivers/hwmon/w83795.c
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@ -127,7 +127,6 @@ static const u16 W83795_REG_IN[][3] = {
{0x24, 0xa2, 0xa3}, /* VSEN17 */
};
#define W83795_REG_VRLSB 0x3C
#define VRLSB_SHIFT 6
static const u8 W83795_REG_IN_HL_LSB[] = {
0x8e, /* VSEN1-4 */
@ -485,8 +484,7 @@ static struct w83795_data *w83795_update_device(struct device *dev)
if (!(data->has_in & (1 << i)))
continue;
tmp = w83795_read(client, W83795_REG_IN[i][IN_READ]) << 2;
tmp |= (w83795_read(client, W83795_REG_VRLSB)
>> VRLSB_SHIFT) & 0x03;
tmp |= w83795_read(client, W83795_REG_VRLSB) >> 6;
data->in[i][IN_READ] = tmp;
}
@ -1140,8 +1138,7 @@ show_temp(struct device *dev, struct device_attribute *attr, char *buf)
long temp = temp_from_reg(data->temp[index][nr]);
if (TEMP_READ == nr)
temp += ((data->temp_read_vrlsb[index] >> VRLSB_SHIFT) & 0x03)
* 250;
temp += (data->temp_read_vrlsb[index] >> 6) * 250;
return sprintf(buf, "%ld\n", temp);
}
@ -1202,7 +1199,7 @@ show_dts(struct device *dev, struct device_attribute *attr, char *buf)
struct w83795_data *data = w83795_update_device(dev);
long temp = temp_from_reg(data->dts[index]);
temp += ((data->dts_read_vrlsb[index] >> VRLSB_SHIFT) & 0x03) * 250;
temp += (data->dts_read_vrlsb[index] >> 6) * 250;
return sprintf(buf, "%ld\n", temp);
}
@ -1981,8 +1978,7 @@ static int w83795_probe(struct i2c_client *client,
data->in[i][IN_LOW] =
w83795_read(client, W83795_REG_IN[i][IN_LOW]);
tmp = w83795_read(client, W83795_REG_IN[i][IN_READ]) << 2;
tmp |= (w83795_read(client, W83795_REG_VRLSB)
>> VRLSB_SHIFT) & 0x03;
tmp |= w83795_read(client, W83795_REG_VRLSB) >> 6;
data->in[i][IN_READ] = tmp;
}
for (i = 0; i < IN_LSB_REG_NUM; i++) {
@ -2010,8 +2006,7 @@ static int w83795_probe(struct i2c_client *client,
data->fan_min[i] |=
(tmp >> W83795_REG_FAN_MIN_LSB_SHIFT(i)) & 0x0F;
data->fan[i] = w83795_read(client, W83795_REG_FAN(i)) << 4;
data->fan[i] |=
(w83795_read(client, W83795_REG_VRLSB) >> 4) & 0x0F;
data->fan[i] |= w83795_read(client, W83795_REG_VRLSB) >> 4;
}
/* temperature and limits */