ADP8870_CFGR
ret = adp8870_write(client, ADP8870_CFGR,
error = adp8870_read(data->client, ADP8870_CFGR, ®_val);
ret = adp8870_read(data->client, ADP8870_CFGR, ®_val);
adp8870_write(data->client, ADP8870_CFGR, reg_val);