Messages in this thread | | | Subject | Re: [PATCH 0/8] serial: 8250: Add 485 emulation to 8250_dw. | From | Andy Shevchenko <> | Date | Mon, 04 Jun 2018 13:12:07 +0300 |
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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@linux.intel.com> Intel Finland Oy
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