Messages in this thread | | | From | Giulio Benetti <> | Subject | [PATCH 0/8] serial: 8250: Add 485 emulation to 8250_dw. | Date | Fri, 1 Jun 2018 14:40:13 +0200 |
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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.
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(-)
-- 2.17.0
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