diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/pmbus/zl6100.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/hwmon/pmbus/zl6100.c b/drivers/hwmon/pmbus/zl6100.c index 7a72b6e4ff1..48c7b4a716a 100644 --- a/drivers/hwmon/pmbus/zl6100.c +++ b/drivers/hwmon/pmbus/zl6100.c @@ -38,8 +38,11 @@ struct zl6100_data { #define to_zl6100_data(x) container_of(x, struct zl6100_data, info) +#define ZL6100_MFR_CONFIG 0xd0 #define ZL6100_DEVICE_ID 0xe4 +#define ZL6100_MFR_XTEMP_ENABLE (1 << 7) + #define ZL6100_WAIT_TIME 1000 /* uS */ static ushort delay = ZL6100_WAIT_TIME; @@ -162,7 +165,7 @@ static int zl6100_probe(struct i2c_client *client, const struct i2c_device_id *mid; if (!i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_READ_BYTE_DATA + I2C_FUNC_SMBUS_READ_WORD_DATA | I2C_FUNC_SMBUS_READ_BLOCK_DATA)) return -ENODEV; @@ -210,12 +213,9 @@ static int zl6100_probe(struct i2c_client *client, /* * Since there was a direct I2C device access above, wait before * accessing the chip again. - * Set the timestamp, wait, then set it again. This should provide - * enough buffer time to be safe. */ data->access = ktime_get(); zl6100_wait(data); - data->access = ktime_get(); info = &data->info; @@ -223,7 +223,16 @@ static int zl6100_probe(struct i2c_client *client, info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT - | PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP; + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; + + ret = i2c_smbus_read_word_data(client, ZL6100_MFR_CONFIG); + if (ret < 0) + goto err_mem; + if (ret & ZL6100_MFR_XTEMP_ENABLE) + info->func[0] |= PMBUS_HAVE_TEMP2; + + data->access = ktime_get(); + zl6100_wait(data); info->read_word_data = zl6100_read_word_data; info->read_byte_data = zl6100_read_byte_data; |