This series ports some of the patches from fsl_esdhc to fsl_esdhc_imx. Because these drivers share a common lineage, many of these patches apply with minor changes. For each one, I have noted the originating commit in the style of linux stable backports.
In fa33d20749 ("mmc: split fsl_esdhc driver for i.MX"), Yangbo says
For the two series processors, the eSDHCs are becoming more and more different
However, these drivers are still extremely similar; the differences between them are not major. NXP has not done a good job of porting patches which apply to both drivers. This causes the fsl_esdhc_imx driver to rot, as the fsl_esdhc gets more general fixes. For this reason, I think that the fsl_esdhc_imx driver should be removed unless NXP can commit to creating series like this which port patches which apply to both drivers.
Changes in v2: - Use a switch statement instead of ifs for max_bus_width - Only default to 8 bit width when max_bus_width is not set
Sean Anderson (11): mmc: fsl_esdhc_imx: make BLK as hard requirement of DM_MMC mmc: fsl_esdhc_imx: remove redundant DM_MMC checking mmc: fsl_esdhc_imx: fix voltage validation mmc: fsl_esdhc_imx: clean up bus width configuration code mmc: fsl_esdhc_imx: drop redundant code for non-removable feature mmc: fsl_esdhc_imx: fix mmc->clock with actual clock mmc: fsl_esdhc_imx: simplify 64bit check for SDMA transfers mmc: fsl_esdhc_imx: use dma-mapping API mmc: fsl_esdhc_imx: simplify esdhc_setup_data() mmc: fsl_esdhc_imx: replace most #ifdefs by IS_ENABLED() mmc: fsl_esdhc_imx: set sysctl register for clock initialization
drivers/mmc/Kconfig | 2 + drivers/mmc/fsl_esdhc_imx.c | 487 ++++++++++++++---------------------- include/fsl_esdhc_imx.h | 14 +- 3 files changed, 194 insertions(+), 309 deletions(-)