diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hwmon/nct7904.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/drivers/hwmon/nct7904.c b/drivers/hwmon/nct7904.c index 95b447cfa24c..b26419dbe840 100644 --- a/drivers/hwmon/nct7904.c +++ b/drivers/hwmon/nct7904.c @@ -99,6 +99,8 @@ struct nct7904_data { u8 enable_dts; u8 has_dts; u8 temp_mode; /* 0: TR mode, 1: TD mode */ + u8 fan_alarm[2]; + u8 vsen_alarm[3]; }; /* Access functions */ @@ -214,7 +216,15 @@ static int nct7904_read_fan(struct device *dev, u32 attr, int channel, SMI_STS5_REG + (channel >> 3)); if (ret < 0) return ret; - *val = (ret >> (channel & 0x07)) & 1; + if (!data->fan_alarm[channel >> 3]) + data->fan_alarm[channel >> 3] = ret & 0xff; + else + /* If there is new alarm showing up */ + data->fan_alarm[channel >> 3] |= (ret & 0xff); + *val = (data->fan_alarm[channel >> 3] >> (channel & 0x07)) & 1; + /* Needs to clean the alarm if alarm existing */ + if (*val) + data->fan_alarm[channel >> 3] ^= 1 << (channel & 0x07); return 0; default: return -EOPNOTSUPP; @@ -298,7 +308,15 @@ static int nct7904_read_in(struct device *dev, u32 attr, int channel, SMI_STS1_REG + (index >> 3)); if (ret < 0) return ret; - *val = (ret >> (index & 0x07)) & 1; + if (!data->vsen_alarm[index >> 3]) + data->vsen_alarm[index >> 3] = ret & 0xff; + else + /* If there is new alarm showing up */ + data->vsen_alarm[index >> 3] |= (ret & 0xff); + *val = (data->vsen_alarm[index >> 3] >> (index & 0x07)) & 1; + /* Needs to clean the alarm if alarm existing */ + if (*val) + data->vsen_alarm[index >> 3] ^= 1 << (index & 0x07); return 0; default: return -EOPNOTSUPP; @@ -915,12 +933,15 @@ static int nct7904_probe(struct i2c_client *client, data->temp_mode = 0; for (i = 0; i < 4; i++) { - val = (ret & (0x03 << i)) >> (i * 2); + val = (ret >> (i * 2)) & 0x03; bit = (1 << i); - if (val == 0) + if (val == 0) { data->tcpu_mask &= ~bit; - else if (val == 0x1 || val == 0x2) - data->temp_mode |= bit; + } else { + if (val == 0x1 || val == 0x2) + data->temp_mode |= bit; + data->vsen_mask &= ~(0x06 << (i * 2)); + } } /* PECI */ |