On Fri, 2018-06-01 at 14:40 +0200, Giulio Benetti wrote: > Need to handle rs485 with 8250_dw port. > > Use existing em485 emulation layer for 8250 taking care to fix some > bug > and taking care especially of RTS_AFTER_SEND case. > I don't see in Cc list author of rs485 code, who might be interested in this. So, added him here. > Giulio Benetti (8): > serial: 8250_dw: add em485 support > serial: 8250_dw: allow enable rs485 at boot time > serial: 8250: Copy em485 from port to real port. > serial: 8250: Handle case port doesn't have TEMT interrupt using > em485. > serial: 8250_dw: treat rpm suspend with -EBUSY if RS485 ON and > RTS_AFTER_SEND > serial: 8250: Copy mctrl when register port. > serial: 8250: Make em485_rts_after_send() set mctrl according to rts > state. > serial: core: Mask mctrl with TIOCM_RTS too if rs485 on and > RTS_AFTER_SEND set. > > drivers/tty/serial/8250/8250.h | 2 +- > drivers/tty/serial/8250/8250_core.c | 2 ++ > drivers/tty/serial/8250/8250_dw.c | 41 > ++++++++++++++++++++++++++++- > drivers/tty/serial/8250/8250_omap.c | 2 +- > drivers/tty/serial/8250/8250_port.c | 33 ++++++++++++++++------- > drivers/tty/serial/serial_core.c | 12 ++++++++- > include/linux/serial_8250.h | 1 + > 7 files changed, 79 insertions(+), 14 deletions(-) > -- Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Intel Finland Oy -- 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
