Hi Uli. On Fri, Dec 9, 2016 at 1:36 PM, Ulrich Hecht <ulrich.hecht+renesas@xxxxxxxxx> wrote: > Implements support for FIFO fill thresholds greater than one with software > timeout. > > This mechanism is not possible (or at least not useful) on SCIF family > hardware other than SCIFA and SCIFB because they do not support turning off > the DR hardware timeout interrupt separately from the RI interrupt. What about HSCIF? Your code does handle HSCIF (cfr. HSRTRGR below)? > --- a/drivers/tty/serial/sh-sci.c > +++ b/drivers/tty/serial/sh-sci.c > @@ -1159,6 +1162,24 @@ static int scif_set_rtrg(struct uart_port *port, int rx_trig) > return rx_trig; > } > > +static int scif_rtrg_enabled(struct uart_port *port) > +{ > + if (sci_getreg(port, HSRTRGR)->size) > + return serial_port_in(port, HSRTRGR) != 0; > + else > + return (serial_port_in(port, SCFCR) & > + (SCFCR_RTRG0 | SCFCR_RTRG1)) != 0; > +} Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html