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SubjectRe: [PATCH 0/8] serial: 8250: Add 485 emulation to 8250_dw.
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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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