Merge tag 'ib-mfd-spi-tty-v4.20' of...

Merge tag 'ib-mfd-spi-tty-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into tty-next

Immutable branch between MFD, SPI and TTY due for the v4.20 merge window