Pull MMC fixes from Ulf Hansson:
"MMC host fixes:
- mxs: Fix flags passed to dmaengine_prep_slave_sg
- cqhci: Add a missing memory barrier
- sdhci-omap: Fix tuning procedure for temperatures < -20C"
* tag 'mmc-v5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: mxs: fix flags passed to dmaengine_prep_slave_sg
mmc: cqhci: Commit descriptors before setting the doorbell
mmc: sdhci-omap: Fix Tuning procedure for temperatures < -20C