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serial: bfin-uart: Fix auto CTS

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Commit 64851636d5,
serial: bfin-uart: Remove ASYNC_CTS_FLOW flag for hardware automatic CTS,
open-codes uart_handle_cts_change() when CONFIG_SERIAL_BFIN_HARD_CTSRTS
to skip start and stop tx.

But the CTS interrupt handler _still_ calls uart_handle_cts_change();
only call uart_handle_cts_change() if !CONFIG_SERIAL_BFIN_HARD_CTSRTS.

cc: Sonic Zhang <[email protected]>
Signed-off-by: Peter Hurley <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Peter Hurley 2014-09-10 15:06:28 -04:00 • committed by Greg Kroah-Hartman
commit 8620d3e538
1 changed files with 2 additions and 1 deletions
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3
drivers/tty/serial/bfin_uart.c
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@ -122,8 +122,9 @@ static irqreturn_t bfin_serial_mctrl_cts_int(int irq, void *dev_id)
if (!status)
uport->hw_stopped = 1;
}
#endif
#else
uart_handle_cts_change(uport, status & TIOCM_CTS);
#endif
return IRQ_HANDLED;
}