Commits
Fugang Duan committed 926ebffe569
tty: serial: imx: add busfreq and pm qos support for DMA mode Add busfreq and pm qos support for DMA mode. DMA mode cannot work stablely at low busfreq mode, so request high busfreq once DMA is enabled. Signed-off-by: Fugang Duan <fugang.duan@nxp.com>