static void bq27520_cntl_cmd(struct bq27520_device_info *di,
				int subcmd)
{
	bq27520_i2c_txsubcmd(BQ27520_REG_CNTL, subcmd, di);
}
static int bq27520_cntl_cmd(struct i2c_client *client,
                u16 sub_cmd)
{
    return bq27520_i2c_txsubcmd(client, BQ27520_REG_CNTL, sub_cmd);
}