diff options
| -rw-r--r-- | drivers/hwmon/w83795.c | 107 |
1 files changed, 24 insertions, 83 deletions
diff --git a/drivers/hwmon/w83795.c b/drivers/hwmon/w83795.c index c8f62044ac1..07e8de58dcd 100644 --- a/drivers/hwmon/w83795.c +++ b/drivers/hwmon/w83795.c @@ -66,23 +66,6 @@ MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended"); #define W83795_REG_FANIN_CTRL2 0x07 #define W83795_REG_VMIGB_CTRL 0x08 -#define TEMP_CTRL_DISABLE 0 -#define TEMP_CTRL_TD 1 -#define TEMP_CTRL_VSEN 2 -#define TEMP_CTRL_TR 3 -#define TEMP_CTRL_SHIFT 4 -#define TEMP_CTRL_HASIN_SHIFT 5 -/* temp mode may effect VSEN17-12 (in20-15) */ -static const u16 W83795_REG_TEMP_CTRL[][6] = { - /* Disable, TD, VSEN, TR, register shift value, has_in shift num */ - {0x00, 0x01, 0x02, 0x03, 0, 17}, /* TR1 */ - {0x00, 0x04, 0x08, 0x0C, 2, 18}, /* TR2 */ - {0x00, 0x10, 0x20, 0x30, 4, 19}, /* TR3 */ - {0x00, 0x40, 0x80, 0xC0, 6, 20}, /* TR4 */ - {0x00, 0x00, 0x02, 0x03, 0, 15}, /* TR5 */ - {0x00, 0x00, 0x08, 0x0C, 2, 16}, /* TR6 */ -}; - #define TEMP_READ 0 #define TEMP_CRIT 1 #define TEMP_CRIT_HYST 2 @@ -359,7 +342,7 @@ struct w83795_data { u8 has_temp; /* Enable monitor temp6-1 or not */ s8 temp[6][5]; /* current, crit, crit_hyst, warn, warn_hyst */ u8 temp_read_vrlsb[6]; - u8 temp_mode; /* bit 0: TR mode, bit 1: TD mode */ + u8 temp_mode; /* Bit vector, 0 = TR, 1 = TD */ u8 temp_src[3]; /* Register value */ u8 enable_dts; /* Enable PECI and SB-TSI, @@ -509,13 +492,6 @@ static struct w83795_data *w83795_update_device(struct device *dev) /* Update temperature */ for (i = 0; i < ARRAY_SIZE(data->temp); i++) { - /* even stop monitor, register still keep value, just read out - * it */ - if (!(data->has_temp & (1 << i))) { - data->temp[i][TEMP_READ] = 0; - data->temp_read_vrlsb[i] = 0; - continue; - } data->temp[i][TEMP_READ] = w83795_read(client, W83795_REG_TEMP[i][TEMP_READ]); data->temp_read_vrlsb[i] = @@ -1163,22 +1139,12 @@ show_dts_mode(struct device *dev, struct device_attribute *attr, char *buf) { struct i2c_client *client = to_i2c_client(dev); struct w83795_data *data = i2c_get_clientdata(client); - struct sensor_device_attribute_2 *sensor_attr = - to_sensor_dev_attr_2(attr); - int index = sensor_attr->index; - u8 tmp; + int tmp; - if (data->enable_dts == 0) - return sprintf(buf, "%d\n", 0); - - if ((data->has_dts >> index) & 0x01) { - if (data->enable_dts & 2) - tmp = 5; - else - tmp = 6; - } else { - tmp = 0; - } + if (data->enable_dts & 2) + tmp = 5; + else + tmp = 6; return sprintf(buf, "%d\n", tmp); } @@ -1231,14 +1197,6 @@ store_dts_ext(struct device *dev, struct device_attribute *attr, } -/* - Type 3: Thermal diode - Type 4: Thermistor - - Temp5-6, default TR - Temp1-4, default TD -*/ - static ssize_t show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1247,20 +1205,17 @@ show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf) struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); int index = sensor_attr->index; - u8 tmp; + int tmp; - if (data->has_temp >> index & 0x01) { - if (data->temp_mode >> index & 0x01) - tmp = 3; - else - tmp = 4; - } else { - tmp = 0; - } + if (data->temp_mode & (1 << index)) + tmp = 3; /* Thermal diode */ + else + tmp = 4; /* Thermistor */ return sprintf(buf, "%d\n", tmp); } +/* Only for temp1-4 (temp5-6 can only be thermistor) */ static ssize_t store_temp_mode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -1270,45 +1225,31 @@ store_temp_mode(struct device *dev, struct device_attribute *attr, struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr); int index = sensor_attr->index; + int reg_shift; unsigned long val; u8 tmp; - u32 mask; if (strict_strtoul(buf, 10, &val) < 0) return -EINVAL; if ((val != 4) && (val != 3)) return -EINVAL; - if ((index > 3) && (val == 3)) - return -EINVAL; mutex_lock(&data->update_lock); if (val == 3) { - val = TEMP_CTRL_TD; - data->has_temp |= 1 << index; + /* Thermal diode */ + val = 0x01; data->temp_mode |= 1 << index; } else if (val == 4) { - val = TEMP_CTRL_TR; - data->has_temp |= 1 << index; - tmp = 1 << index; - data->temp_mode &= ~tmp; + /* Thermistor */ + val = 0x03; + data->temp_mode &= ~(1 << index); } - if (index > 3) - tmp = w83795_read(client, W83795_REG_TEMP_CTRL1); - else - tmp = w83795_read(client, W83795_REG_TEMP_CTRL2); - - mask = 0x03 << W83795_REG_TEMP_CTRL[index][TEMP_CTRL_SHIFT]; - tmp &= ~mask; - tmp |= W83795_REG_TEMP_CTRL[index][val]; - - mask = 1 << W83795_REG_TEMP_CTRL[index][TEMP_CTRL_HASIN_SHIFT]; - data->has_in &= ~mask; - - if (index > 3) - w83795_write(client, W83795_REG_TEMP_CTRL1, tmp); - else - w83795_write(client, W83795_REG_TEMP_CTRL2, tmp); + reg_shift = 2 * index; + tmp = w83795_read(client, W83795_REG_TEMP_CTRL2); + tmp &= ~(0x03 << reg_shift); + tmp |= val << reg_shift; + w83795_write(client, W83795_REG_TEMP_CTRL2, tmp); mutex_unlock(&data->update_lock); return count; @@ -1506,7 +1447,7 @@ store_sf_setup(struct device *dev, struct device_attribute *attr, show_alarm_beep, store_beep, BEEP_ENABLE, index + 17) } #define SENSOR_ATTR_TEMP(index) { \ - SENSOR_ATTR_2(temp##index##_type, S_IRUGO | S_IWUSR, \ + SENSOR_ATTR_2(temp##index##_type, S_IRUGO | (index < 4 ? S_IWUSR : 0), \ show_temp_mode, store_temp_mode, NOT_USED, index - 1), \ SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp, \ NULL, TEMP_READ, index - 1), \ |