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hwmon/w83793: Remove the description of AMDSI and update the voltage formula

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Fix the driver to match the information in datasheet 1.0. AMD 
SI interface is marked as reserved, computing formula for 5VDD
and 5VSB is updated.

Signed-off-by: Gong Jun <jgong@winbond.com>
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Gong Jun 2007-01-18 22:14:23 +01:00 committed by Jean Delvare
parent a8b3485287
commit ddca933bd5
1 changed files with 12 additions and 5 deletions
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17
drivers/hwmon/w83793.c
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@ -117,6 +117,7 @@ static const u16 W83793_REG_IN[][3] = {
/* Low Bits of Vcore A/B Vtt Read/High/Low */
static const u16 W83793_REG_IN_LOW_BITS[] = { 0x1b, 0x68, 0x69 };
static u8 scale_in[] = { 2, 2, 2, 16, 16, 16, 8, 24, 24, 16 };
static u8 scale_in_add[] = { 0, 0, 0, 0, 0, 0, 0, 150, 150, 0 };
#define W83793_REG_FAN(index) (0x23 + 2 * (index)) /* High byte */
#define W83793_REG_FAN_MIN(index) (0x90 + 2 * (index)) /* High byte */
@ -500,7 +501,7 @@ store_temp(struct device *dev, struct device_attribute *attr,
each has 4 mode:(2 bits)
0: Stop monitor
1: Use internal temp sensor(default)
2: Use sensor in AMD CPU and get result by AMDSI
2: Reserved
3: Use sensor in Intel CPU and get result by PECI
TR1-TR2
@ -509,8 +510,8 @@ store_temp(struct device *dev, struct device_attribute *attr,
1: To enable temp sensors monitor
*/
/* 0 disable, 5 AMDSI, 6 PECI */
static u8 TO_TEMP_MODE[] = { 0, 0, 5, 6 };
/* 0 disable, 6 PECI */
static u8 TO_TEMP_MODE[] = { 0, 0, 0, 6 };
static ssize_t
show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf)
@ -550,7 +551,7 @@ store_temp_mode(struct device *dev, struct device_attribute *attr,
u8 val = simple_strtoul(buf, NULL, 10);
/* transform the sysfs interface values into table above */
if ((val == 5 || val == 6) && (index < 4)) {
if ((val == 6) && (index < 4)) {
val -= 3;
} else if ((val == 3 && index < 4)
|| (val == 4 && index >= 4)
@ -839,7 +840,9 @@ show_in(struct device *dev, struct device_attribute *attr, char *buf)
val <<= 2;
val += (data->in_low_bits[nr] >> (index * 2)) & 0x3;
}
return sprintf(buf, "%d\n", val * scale_in[index]);
/* voltage inputs 5VDD and 5VSB needs 150mV offset */
val = val * scale_in[index] + scale_in_add[index];
return sprintf(buf, "%d\n", val);
}
static ssize_t
@ -859,6 +862,10 @@ store_in(struct device *dev, struct device_attribute *attr,
scale_in[index] / 2) / scale_in[index];
mutex_lock(&data->update_lock);
if (index > 2) {
/* fix the limit values of 5VDD and 5VSB to ALARM mechanism */
if (1 == nr || 2 == nr) {
val -= scale_in_add[index] / scale_in[index];
}
val = SENSORS_LIMIT(val, 0, 255);
} else {
val = SENSORS_LIMIT(val, 0, 0x3FF);