On Mon, Nov 20, 2017 at 06:51:37PM +0100, Heiko St?bner wrote: > Also, the rk3188 uarts are definitly not fixed at 24MHz and can use other > sources as well. So I'm puzzled because at least the serial console on my > rk3188 radxarock works without issues. > > Can you tell us which uart you are failing to control correctly? > > > I do remember that I ran into problems when the set_termios change > was introduced originally, resulting in the patch > "serial: 8250_dw: Honor clk_round_rate errors in dw8250_set_termios" [0] > but that is in mainline for quite some time now. > > [0] https://patchwork.kernel.org/patch/9594657/ > > > Heiko Hi Heiko, I'm using ttyS2(uart2). My board starts to fail on mainline since the exact commit 37c8596, that's why I try to remove dw8250_set_termios() and it worked.
