From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 10 Sep 2014 19:06:28 +0000 (-0400)
Subject: serial: bfin-uart: Fix auto CTS
X-Git-Tag: v3.18-rc1~129^2~32
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8620d3e5382a3c172a7885fa67a70955ca930425;p=karo-tx-linux.git

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 <sonic.zhang@analog.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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;
 }