diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/pmbus/pmbus_core.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index bb21f1e79289..156d22ad2ad0 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -441,6 +441,18 @@ int pmbus_update_byte_data(struct i2c_client *client, int page, u8 reg, } EXPORT_SYMBOL_NS_GPL(pmbus_update_byte_data, PMBUS); +static int pmbus_read_block_data(struct i2c_client *client, int page, u8 reg, + char *data_buf) +{ + int rv; + + rv = pmbus_set_page(client, page, 0xff); + if (rv < 0) + return rv; + + return i2c_smbus_read_block_data(client, reg, data_buf); +} + static struct pmbus_sensor *pmbus_find_sensor(struct pmbus_data *data, int page, int reg) { @@ -578,6 +590,22 @@ bool pmbus_check_word_register(struct i2c_client *client, int page, int reg) } EXPORT_SYMBOL_NS_GPL(pmbus_check_word_register, PMBUS); +static bool pmbus_check_block_register(struct i2c_client *client, int page, + int reg) +{ + int rv; + struct pmbus_data *data = i2c_get_clientdata(client); + char data_buf[I2C_SMBUS_BLOCK_MAX + 2]; + + rv = pmbus_read_block_data(client, page, reg, data_buf); + if (rv >= 0 && !(data->flags & PMBUS_SKIP_STATUS_CHECK)) + rv = pmbus_check_status_cml(client); + if (rv < 0 && (data->flags & PMBUS_READ_STATUS_AFTER_FAILED_CHECK)) + data->read_status(client, -1); + pmbus_clear_fault_page(client, -1); + return rv >= 0; +} + const struct pmbus_driver_info *pmbus_get_driver_info(struct i2c_client *client) { struct pmbus_data *data = i2c_get_clientdata(client); |