Re: [PATCH 3/4] serial: 8250: Make em485_rts_after_send() set mctrl according to rts state.

On Wed, 2018-06-06 at 11:49 +0200, Giulio Benetti wrote: > When rs485 enabled and RTS_AFTER_SEND set on startup, need to preserve > mctrl status, because later functions will call set_mctrl passing > port->mctrl=0 overriding rts status, resulting in rts pin in > transmission when idle. > > Make

Re: [PATCH 3/4] serial: 8250: Make em485_rts_after_send() set mctrl according to rts state.

On Wed, 2018-06-06 at 11:49 +0200, Giulio Benetti wrote: > When rs485 enabled and RTS_AFTER_SEND set on startup, need to preserve > mctrl status, because later functions will call set_mctrl passing > port->mctrl=0 overriding rts status, resulting in rts pin in > transmission when idle. > > Make

[PATCH 3/4] serial: 8250: Make em485_rts_after_send() set mctrl according to rts state.

When rs485 enabled and RTS_AFTER_SEND set on startup, need to preserve mctrl status, because later functions will call set_mctrl passing port->mctrl=0 overriding rts status, resulting in rts pin in transmission when idle. Make mctrl reflect rts pin state. Signed-off-by: Giulio Benetti ---

[PATCH 3/4] serial: 8250: Make em485_rts_after_send() set mctrl according to rts state.

When rs485 enabled and RTS_AFTER_SEND set on startup, need to preserve mctrl status, because later functions will call set_mctrl passing port->mctrl=0 overriding rts status, resulting in rts pin in transmission when idle. Make mctrl reflect rts pin state. Signed-off-by: Giulio Benetti ---