diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/pmbus/pmbus_core.c | 86 |
1 files changed, 38 insertions, 48 deletions
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index cb5e255..80eef50 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -298,29 +298,30 @@ static int pmbus_check_status_cml(struct i2c_client *client) return 0; } -bool pmbus_check_byte_register(struct i2c_client *client, int page, int reg) +static bool pmbus_check_register(struct i2c_client *client, + int (*func)(struct i2c_client *client, + int page, int reg), + int page, int reg) { int rv; struct pmbus_data *data = i2c_get_clientdata(client); - rv = _pmbus_read_byte_data(client, page, reg); + rv = func(client, page, reg); if (rv >= 0 && !(data->flags & PMBUS_SKIP_STATUS_CHECK)) rv = pmbus_check_status_cml(client); pmbus_clear_fault_page(client, -1); return rv >= 0; } + +bool pmbus_check_byte_register(struct i2c_client *client, int page, int reg) +{ + return pmbus_check_register(client, _pmbus_read_byte_data, page, reg); +} EXPORT_SYMBOL_GPL(pmbus_check_byte_register); bool pmbus_check_word_register(struct i2c_client *client, int page, int reg) { - int rv; - struct pmbus_data *data = i2c_get_clientdata(client); - - rv = _pmbus_read_word_data(client, page, reg); - if (rv >= 0 && !(data->flags & PMBUS_SKIP_STATUS_CHECK)) - rv = pmbus_check_status_cml(client); - pmbus_clear_fault_page(client, -1); - return rv >= 0; + return pmbus_check_register(client, _pmbus_read_word_data, page, reg); } EXPORT_SYMBOL_GPL(pmbus_check_word_register); @@ -332,6 +333,19 @@ const struct pmbus_driver_info *pmbus_get_driver_info(struct i2c_client *client) } EXPORT_SYMBOL_GPL(pmbus_get_driver_info); +static struct _pmbus_status { + u32 func; + u16 base; + u16 reg; +} pmbus_status[] = { + { PMBUS_HAVE_STATUS_VOUT, PB_STATUS_VOUT_BASE, PMBUS_STATUS_VOUT }, + { PMBUS_HAVE_STATUS_IOUT, PB_STATUS_IOUT_BASE, PMBUS_STATUS_IOUT }, + { PMBUS_HAVE_STATUS_TEMP, PB_STATUS_TEMP_BASE, + PMBUS_STATUS_TEMPERATURE }, + { PMBUS_HAVE_STATUS_FAN12, PB_STATUS_FAN_BASE, PMBUS_STATUS_FAN_12 }, + { PMBUS_HAVE_STATUS_FAN34, PB_STATUS_FAN34_BASE, PMBUS_STATUS_FAN_34 }, +}; + static struct pmbus_data *pmbus_update_device(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); @@ -341,45 +355,21 @@ static struct pmbus_data *pmbus_update_device(struct device *dev) mutex_lock(&data->update_lock); if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { - int i; + int i, j; - for (i = 0; i < info->pages; i++) + for (i = 0; i < info->pages; i++) { data->status[PB_STATUS_BASE + i] = _pmbus_read_byte_data(client, i, data->status_register); - for (i = 0; i < info->pages; i++) { - if (!(info->func[i] & PMBUS_HAVE_STATUS_VOUT)) - continue; - data->status[PB_STATUS_VOUT_BASE + i] - = _pmbus_read_byte_data(client, i, PMBUS_STATUS_VOUT); - } - for (i = 0; i < info->pages; i++) { - if (!(info->func[i] & PMBUS_HAVE_STATUS_IOUT)) - continue; - data->status[PB_STATUS_IOUT_BASE + i] - = _pmbus_read_byte_data(client, i, PMBUS_STATUS_IOUT); - } - for (i = 0; i < info->pages; i++) { - if (!(info->func[i] & PMBUS_HAVE_STATUS_TEMP)) - continue; - data->status[PB_STATUS_TEMP_BASE + i] - = _pmbus_read_byte_data(client, i, - PMBUS_STATUS_TEMPERATURE); - } - for (i = 0; i < info->pages; i++) { - if (!(info->func[i] & PMBUS_HAVE_STATUS_FAN12)) - continue; - data->status[PB_STATUS_FAN_BASE + i] - = _pmbus_read_byte_data(client, i, - PMBUS_STATUS_FAN_12); - } - - for (i = 0; i < info->pages; i++) { - if (!(info->func[i] & PMBUS_HAVE_STATUS_FAN34)) - continue; - data->status[PB_STATUS_FAN34_BASE + i] - = _pmbus_read_byte_data(client, i, - PMBUS_STATUS_FAN_34); + for (j = 0; j < ARRAY_SIZE(pmbus_status); j++) { + struct _pmbus_status *s = &pmbus_status[j]; + + if (!(info->func[i] & s->func)) + continue; + data->status[s->base + i] + = _pmbus_read_byte_data(client, i, + s->reg); + } } if (info->func[0] & PMBUS_HAVE_STATUS_INPUT) @@ -913,12 +903,12 @@ static int pmbus_add_label(struct pmbus_data *data, */ struct pmbus_limit_attr { u16 reg; /* Limit register */ + u16 sbit; /* Alarm attribute status bit */ bool update; /* True if register needs updates */ bool low; /* True if low limit; for limits with compare functions only */ const char *attr; /* Attribute name */ const char *alarm; /* Alarm attribute name */ - u32 sbit; /* Alarm attribute status bit */ }; /* @@ -927,6 +917,8 @@ struct pmbus_limit_attr { */ struct pmbus_sensor_attr { u16 reg; /* sensor register */ + u8 gbit; /* generic status bit */ + u8 nlimit; /* # of limit registers */ enum pmbus_sensor_classes class;/* sensor class */ const char *label; /* sensor label */ bool paged; /* true if paged sensor */ @@ -935,9 +927,7 @@ struct pmbus_sensor_attr { u32 func; /* sensor mask */ u32 sfunc; /* sensor status mask */ int sbase; /* status base register */ - u32 gbit; /* generic status bit */ const struct pmbus_limit_attr *limit;/* limit registers */ - int nlimit; /* # of limit registers */ }; /* |
