From 8620d3e5382a3c172a7885fa67a70955ca930425 Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Wed, 10 Sep 2014 15:06:28 -0400 Subject: [PATCH] serial: bfin-uart: Fix auto CTS Commit 64851636d568ae9f167cd5d1dcdbfe17e6eef73c, 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 Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/bfin_uart.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c index fc9fbf3f24a7..7da9911e95f0 100644 --- a/drivers/tty/serial/bfin_uart.c +++ b/drivers/tty/serial/bfin_uart.c @@ -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; }