On Fri, Apr 03, 2020 at 01:57:15PM +0200, Greg KH wrote: > > > If the property is not there, the type will be uninitialized and no > > > warning will be spit out, are you sure you want to do that? > > > > The default value from initial ourport will be used, which is UPIO_MEM. > > This way it is backward compatible. > > Where is iotype set to UPIO_MEM as a default? Here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/tty/serial/samsung_tty.c?h=v5.6#n1626 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/tty/serial/samsung_tty.c?h=v5.6#n1989 Best regards, Krzysztof
