mmc_can_retune    875 drivers/mmc/host/sdhci-pci-core.c 	if (intel_host->rpm_retune_ok || !mmc_can_retune(host->mmc))
mmc_can_retune   1331 drivers/mmc/host/tmio_mmc_core.c 	return host->tap_num && mmc_can_retune(host->mmc);