diff options
| -rw-r--r-- | drivers/hwmon/adt7475.c | 114 |
1 files changed, 99 insertions, 15 deletions
diff --git a/drivers/hwmon/adt7475.c b/drivers/hwmon/adt7475.c index 716dae9ff0f..d20130723d6 100644 --- a/drivers/hwmon/adt7475.c +++ b/drivers/hwmon/adt7475.c @@ -80,6 +80,8 @@ #define REG_EXTEND1 0x76 #define REG_EXTEND2 0x77 + +#define REG_CONFIG3 0x78 #define REG_CONFIG5 0x7C #define REG_CONFIG4 0x7D @@ -88,6 +90,10 @@ #define REG_VTT_MIN 0x84 /* ADT7490 only */ #define REG_VTT_MAX 0x86 /* ADT7490 only */ +#define CONFIG3_SMBALERT 0x01 +#define CONFIG3_THERM 0x02 + +#define CONFIG4_PINFUNC 0x03 #define CONFIG4_MAXDUTY 0x08 #define CONFIG5_TWOSCOMP 0x01 @@ -149,6 +155,8 @@ struct adt7475_data { u8 config4; u8 config5; u8 has_voltage; + u8 has_pwm2:1; + u8 has_fan4:1; u32 alarms; u16 voltage[3][6]; u16 temp[7][3]; @@ -1025,21 +1033,12 @@ static struct attribute *adt7475_attrs[] = { &sensor_dev_attr_fan3_input.dev_attr.attr, &sensor_dev_attr_fan3_min.dev_attr.attr, &sensor_dev_attr_fan3_alarm.dev_attr.attr, - &sensor_dev_attr_fan4_input.dev_attr.attr, - &sensor_dev_attr_fan4_min.dev_attr.attr, - &sensor_dev_attr_fan4_alarm.dev_attr.attr, &sensor_dev_attr_pwm1.dev_attr.attr, &sensor_dev_attr_pwm1_freq.dev_attr.attr, &sensor_dev_attr_pwm1_enable.dev_attr.attr, &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, - &sensor_dev_attr_pwm2.dev_attr.attr, - &sensor_dev_attr_pwm2_freq.dev_attr.attr, - &sensor_dev_attr_pwm2_enable.dev_attr.attr, - &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, - &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, - &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, &sensor_dev_attr_pwm3.dev_attr.attr, &sensor_dev_attr_pwm3_freq.dev_attr.attr, &sensor_dev_attr_pwm3_enable.dev_attr.attr, @@ -1050,12 +1049,33 @@ static struct attribute *adt7475_attrs[] = { NULL, }; +static struct attribute *fan4_attrs[] = { + &sensor_dev_attr_fan4_input.dev_attr.attr, + &sensor_dev_attr_fan4_min.dev_attr.attr, + &sensor_dev_attr_fan4_alarm.dev_attr.attr, + NULL +}; + +static struct attribute *pwm2_attrs[] = { + &sensor_dev_attr_pwm2.dev_attr.attr, + &sensor_dev_attr_pwm2_freq.dev_attr.attr, + &sensor_dev_attr_pwm2_enable.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, + NULL +}; + /* Attributes specific to the ADT7490 */ -static struct attribute *adt7490_attrs[] = { +static struct attribute *in0_attrs[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_alarm.dev_attr.attr, + NULL +}; + +static struct attribute *adt7490_attrs[] = { &sensor_dev_attr_in3_input.dev_attr.attr, &sensor_dev_attr_in3_max.dev_attr.attr, &sensor_dev_attr_in3_min.dev_attr.attr, @@ -1072,6 +1092,9 @@ static struct attribute *adt7490_attrs[] = { }; static struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs }; +static struct attribute_group fan4_attr_group = { .attrs = fan4_attrs }; +static struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs }; +static struct attribute_group in0_attr_group = { .attrs = in0_attrs }; static struct attribute_group adt7490_attr_group = { .attrs = adt7490_attrs }; static int adt7475_detect(struct i2c_client *client, int kind, @@ -1115,13 +1138,20 @@ static void adt7475_remove_files(struct i2c_client *client, sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group); if (data->has_voltage & 0x39) sysfs_remove_group(&client->dev.kobj, &adt7490_attr_group); + if (data->has_fan4) + sysfs_remove_group(&client->dev.kobj, &fan4_attr_group); + if (data->has_pwm2) + sysfs_remove_group(&client->dev.kobj, &pwm2_attr_group); + if (data->has_voltage & (1 << 0)) + sysfs_remove_group(&client->dev.kobj, &in0_attr_group); } static int adt7475_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct adt7475_data *data; - int i, ret = 0; + int i, ret = 0, revision; + u8 config3; data = kzalloc(sizeof(*data), GFP_KERNEL); if (data == NULL) @@ -1133,10 +1163,36 @@ static int adt7475_probe(struct i2c_client *client, /* Initialize device-specific values */ switch (id->driver_data) { case adt7490: - data->has_voltage = 0x3f; /* in0 to in5 */ + data->has_voltage = 0x3e; /* in1 to in5 */ + revision = adt7475_read(REG_DEVID2) & 0x03; break; default: data->has_voltage = 0x06; /* in1, in2 */ + revision = adt7475_read(REG_DEVID2) & 0x07; + } + + config3 = adt7475_read(REG_CONFIG3); + /* Pin PWM2 may alternatively be used for ALERT output */ + if (!(config3 & CONFIG3_SMBALERT)) + data->has_pwm2 = 1; + /* Meaning of this bit is inverted for the ADT7473-1 */ + if (id->driver_data == adt7473 && revision >= 1) + data->has_pwm2 = !data->has_pwm2; + + data->config4 = adt7475_read(REG_CONFIG4); + /* Pin TACH4 may alternatively be used for THERM */ + if ((data->config4 & CONFIG4_PINFUNC) == 0x0) + data->has_fan4 = 1; + + /* THERM configuration is more complex on the ADT7490, because 2 + different pins (TACH4 and +2.5 Vin) can be used for this function */ + if (id->driver_data == adt7490) { + if ((data->config4 & CONFIG4_PINFUNC) == 0x1 && + !(config3 & CONFIG3_THERM)) + data->has_fan4 = 1; + if (!(config3 & CONFIG3_THERM) || + (data->config4 & CONFIG4_PINFUNC) == 0x1) + data->has_voltage |= (1 << 0); /* in0 */ } /* Call adt7475_read_pwm for all pwm's as this will reprogram any @@ -1155,6 +1211,23 @@ static int adt7475_probe(struct i2c_client *client, goto eremove; } + /* Features that can be disabled individually */ + if (data->has_fan4) { + ret = sysfs_create_group(&client->dev.kobj, &fan4_attr_group); + if (ret) + goto eremove; + } + if (data->has_pwm2) { + ret = sysfs_create_group(&client->dev.kobj, &pwm2_attr_group); + if (ret) + goto eremove; + } + if (data->has_voltage & (1 << 0)) { + ret = sysfs_create_group(&client->dev.kobj, &in0_attr_group); + if (ret) + goto eremove; + } + data->hwmon_dev = hwmon_device_register(&client->dev); if (IS_ERR(data->hwmon_dev)) { ret = PTR_ERR(data->hwmon_dev); @@ -1293,13 +1366,19 @@ static struct adt7475_data *adt7475_update_device(struct device *dev) ((ext >> 4) & 3); } - for (i = 0; i < ADT7475_TACH_COUNT; i++) + for (i = 0; i < ADT7475_TACH_COUNT; i++) { + if (i == 3 && !data->has_fan4) + continue; data->tach[INPUT][i] = adt7475_read_word(client, TACH_REG(i)); + } /* Updated by hw when in auto mode */ - for (i = 0; i < ADT7475_PWM_COUNT; i++) + for (i = 0; i < ADT7475_PWM_COUNT; i++) { + if (i == 1 && !data->has_pwm2) + continue; data->pwm[INPUT][i] = adt7475_read(PWM_REG(i)); + } data->measure_updated = jiffies; } @@ -1340,11 +1419,16 @@ static struct adt7475_data *adt7475_update_device(struct device *dev) } adt7475_read_hystersis(client); - for (i = 0; i < ADT7475_TACH_COUNT; i++) + for (i = 0; i < ADT7475_TACH_COUNT; i++) { + if (i == 3 && !data->has_fan4) + continue; data->tach[MIN][i] = adt7475_read_word(client, TACH_MIN_REG(i)); + } for (i = 0; i < ADT7475_PWM_COUNT; i++) { + if (i == 1 && !data->has_pwm2) + continue; data->pwm[MAX][i] = adt7475_read(PWM_MAX_REG(i)); data->pwm[MIN][i] = adt7475_read(PWM_MIN_REG(i)); /* Set the channel and control information */ |