mmcspi_set_up_command
err = mmcspi_set_up_command(dev, &stop, &mmc_stop);
err = mmcspi_set_up_command(dev, &cmd, &mmc_cmd);
err = mmcspi_set_up_command(dev, &cmd, &mmc_cmd);
err = mmcspi_set_up_command(brdev, &cmd, mmc_cmd);