On Thu, 1 Sep 2022, Kumaravel.Thiagarajan@xxxxxxxxxxxxx wrote: > > > + const unsigned int standard_baud_list[] = {50, 75, 110, 134, 150, 300, > > > + 600, 1200, 1800, 2000, 2400, 3600, > > > + 4800, 7200, 9600, 19200, 38400, 57600, > > > + 115200, 125000, 136400, 150000, 166700, > > > + 187500, 214300, 250000, 300000, 375000, > > > + 500000, 750000, > > > + 1000000, 1500000}; > > > > Why?! > > The standard baud rates are handled within serial8250_do_set_termios > which is invoked from within mchp_pci1xxxx_set_termios in first place. > Hence if it matches with any of the standard baudrates, > it can return immediately. Care to explain why the baudrates in your table don't match those in tty_baudrate.c? ...It makes no sense to me that you call these "standard baud rates". -- i.