sc16is7xx: remove useless "uart_handle_cts_change"

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SC16is7xx has feature for auto hardware flow control using RTS/CTS,
so we don't need "uart_handle_cts_change" to invoke "start_tx/stop_tx"
for flow control.

In addition, for software CTS, interrupt "SC16IS7XX_IIR_CTSRTS_SRC"
just report the nCTS change of state from active(low) to inactive(high),
driver don't know when the state of nCTS change from incactive to active,
so can't resume the transmission when a peer device is again ready and
re-assert nRTS signal.

Signed-off-by: Wills Wang <wills.wang@live.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Wills Wang 2016-03-05 22:09:05 +08:00 • committed by Greg Kroah-Hartman

parent 03e970bba4

commit e69ef01ff0

1 changed files with 3 additions and 10 deletions

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drivers/tty/serial/sc16is7xx.c

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