diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
index 345f465aa28887101f6849f00520c1a0b984b1eb..de559923454c24c7f25930d8b461cc73c578ead4 100644
--- a/drivers/hwmon/f71882fg.c
+++ b/drivers/hwmon/f71882fg.c
@@ -68,8 +68,7 @@
#define F71882FG_REG_TEMP_HIGH(nr) (0x81 + 2 * (nr))
#define F71882FG_REG_TEMP_STATUS 0x62
#define F71882FG_REG_TEMP_BEEP 0x63
-#define F71882FG_REG_TEMP_HYST1 0x6C
-#define F71882FG_REG_TEMP_HYST23 0x6D
+#define F71882FG_REG_TEMP_HYST(nr) (0x6C + (nr))
#define F71882FG_REG_TEMP_TYPE 0x6B
#define F71882FG_REG_TEMP_DIODE_OPEN 0x6F
@@ -77,8 +76,7 @@
#define F71882FG_REG_PWM_TYPE 0x94
#define F71882FG_REG_PWM_ENABLE 0x96
-#define F71882FG_REG_FAN_HYST0 0x98
-#define F71882FG_REG_FAN_HYST1 0x99
+#define F71882FG_REG_FAN_HYST(nr) (0x98 + (nr))
#define F71882FG_REG_POINT_PWM(pwm, point) (0xAA + (point) + (16 * (pwm)))
#define F71882FG_REG_POINT_TEMP(pwm, point) (0xA6 + (point) + (16 * (pwm)))
@@ -144,7 +142,7 @@ struct f71882fg_data {
u8 temp[4];
u8 temp_ovt[4];
u8 temp_high[4];
- u8 temp_hyst[4];
+ u8 temp_hyst[2]; /* 2 hysts stored per reg */
u8 temp_type[4];
u8 temp_status;
u8 temp_beep;
@@ -688,13 +686,11 @@ static struct f71882fg_data *f71882fg_update_device(struct device *dev)
F71882FG_REG_TEMP_HIGH(nr));
}
- /* Have to hardcode hyst*/
- data->temp_hyst[1] = f71882fg_read8(data,
- F71882FG_REG_TEMP_HYST1) >> 4;
- /* Hyst temps 2 & 3 stored in same register */
- reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST23);
- data->temp_hyst[2] = reg & 0x0F;
- data->temp_hyst[3] = reg >> 4;
+ /* hyst */
+ data->temp_hyst[0] =
+ f71882fg_read8(data, F71882FG_REG_TEMP_HYST(0));
+ data->temp_hyst[1] =
+ f71882fg_read8(data, F71882FG_REG_TEMP_HYST(1));
/* Have to hardcode type, because temp1 is special */
reg = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE);
@@ -715,10 +711,11 @@ static struct f71882fg_data *f71882fg_update_device(struct device *dev)
data->pwm_enable = f71882fg_read8(data,
F71882FG_REG_PWM_ENABLE);
- data->pwm_auto_point_hyst[0] = f71882fg_read8(data,
- F71882FG_REG_FAN_HYST0);
- data->pwm_auto_point_hyst[1] = f71882fg_read8(data,
- F71882FG_REG_FAN_HYST1);
+ data->pwm_auto_point_hyst[0] =
+ f71882fg_read8(data, F71882FG_REG_FAN_HYST(0));
+ data->pwm_auto_point_hyst[1] =
+ f71882fg_read8(data, F71882FG_REG_FAN_HYST(1));
+
for (nr = 0; nr < nr_fans; nr++) {
data->pwm_auto_point_mapping[nr] =
f71882fg_read8(data,
@@ -1011,7 +1008,11 @@ static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute
int temp_max_hyst;
mutex_lock(&data->update_lock);
- temp_max_hyst = (data->temp_high[nr] - data->temp_hyst[nr]) * 1000;
+ if (nr & 1)
+ temp_max_hyst = data->temp_hyst[nr / 2] >> 4;
+ else
+ temp_max_hyst = data->temp_hyst[nr / 2] & 0x0f;
+ temp_max_hyst = (data->temp_high[nr] - temp_max_hyst) * 1000;
mutex_unlock(&data->update_lock);
return sprintf(buf, "%d\n", temp_max_hyst);
@@ -1033,26 +1034,15 @@ static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute
val = SENSORS_LIMIT(val, data->temp_high[nr] - 15,
data->temp_high[nr]);
val = data->temp_high[nr] - val;
- data->temp_hyst[nr] = val;
/* convert value to register contents */
- switch (nr) {
- case 1:
- reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST1);
- reg = (reg & 0x0f) | (val << 4);
- break;
- case 2:
- reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST23);
- reg = (reg & 0xf0) | val;
- break;
- case 3:
- reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST23);
- reg = (reg & 0x0f) | (val << 4);
- break;
- }
-
- f71882fg_write8(data, (nr <= 1) ? F71882FG_REG_TEMP_HYST1 :
- F71882FG_REG_TEMP_HYST23, reg);
+ reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST(nr / 2));
+ if (nr & 1)
+ reg = (reg & 0x0f) | (val << 4);
+ else
+ reg = (reg & 0xf0) | val;
+ f71882fg_write8(data, F71882FG_REG_TEMP_HYST(nr / 2), reg);
+ data->temp_hyst[nr / 2] = reg;
mutex_unlock(&data->update_lock);
return ret;
@@ -1091,7 +1081,11 @@ static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute
int temp_crit_hyst;
mutex_lock(&data->update_lock);
- temp_crit_hyst = (data->temp_ovt[nr] - data->temp_hyst[nr]) * 1000;
+ if (nr & 1)
+ temp_crit_hyst = data->temp_hyst[nr / 2] >> 4;
+ else
+ temp_crit_hyst = data->temp_hyst[nr / 2] & 0x0f;
+ temp_crit_hyst = (data->temp_ovt[nr] - temp_crit_hyst) * 1000;
mutex_unlock(&data->update_lock);
return sprintf(buf, "%d\n", temp_crit_hyst);
@@ -1320,20 +1314,10 @@ static ssize_t show_pwm_auto_point_temp_hyst(struct device *dev,
int point = to_sensor_dev_attr_2(devattr)->nr;
mutex_lock(&data->update_lock);
- switch (nr) {
- case 0:
- result = data->pwm_auto_point_hyst[0] & 0x0f;
- break;
- case 1:
- result = data->pwm_auto_point_hyst[0] >> 4;
- break;
- case 2:
- result = data->pwm_auto_point_hyst[1] & 0x0f;
- break;
- case 3:
- result = data->pwm_auto_point_hyst[1] >> 4;
- break;
- }
+ if (nr & 1)
+ result = data->pwm_auto_point_hyst[nr / 2] >> 4;
+ else
+ result = data->pwm_auto_point_hyst[nr / 2] & 0x0f;
result = 1000 * (data->pwm_auto_point_temp[nr][point] - result);
mutex_unlock(&data->update_lock);
@@ -1348,6 +1332,7 @@ static ssize_t store_pwm_auto_point_temp_hyst(struct device *dev,
int nr = to_sensor_dev_attr_2(devattr)->index;
int point = to_sensor_dev_attr_2(devattr)->nr;
long val = simple_strtol(buf, NULL, 10) / 1000;
+ u8 reg;
mutex_lock(&data->update_lock);
data->pwm_auto_point_temp[nr][point] =
@@ -1356,34 +1341,14 @@ static ssize_t store_pwm_auto_point_temp_hyst(struct device *dev,
data->pwm_auto_point_temp[nr][point]);
val = data->pwm_auto_point_temp[nr][point] - val;
- if (nr == 0 || nr == 1) {
- data->pwm_auto_point_hyst[0] =
- f71882fg_read8(data, F71882FG_REG_FAN_HYST0);
- } else {
- data->pwm_auto_point_hyst[1] =
- f71882fg_read8(data, F71882FG_REG_FAN_HYST1);
- }
- switch (nr) {
- case 0:
- val = (data->pwm_auto_point_hyst[0] & 0xf0) | val;
- break;
- case 1:
- val = (data->pwm_auto_point_hyst[0] & 0x0f) | (val << 4);
- break;
- case 2:
- val = (data->pwm_auto_point_hyst[1] & 0xf0) | val;
- break;
- case 3:
- val = (data->pwm_auto_point_hyst[1] & 0x0f) | (val << 4);
- break;
- }
- if (nr == 0 || nr == 1) {
- f71882fg_write8(data, F71882FG_REG_FAN_HYST0, val);
- data->pwm_auto_point_hyst[0] = val;
- } else {
- f71882fg_write8(data, F71882FG_REG_FAN_HYST1, val);
- data->pwm_auto_point_hyst[1] = val;
- }
+ reg = f71882fg_read8(data, F71882FG_REG_FAN_HYST(nr / 2));
+ if (nr & 1)
+ reg = (reg & 0x0f) | (val << 4);
+ else
+ reg = (reg & 0xf0) | val;
+
+ f71882fg_write8(data, F71882FG_REG_FAN_HYST(nr / 2), reg);
+ data->pwm_auto_point_hyst[nr / 2] = reg;
mutex_unlock(&data->update_lock);
return count;