tty: serial: imx: remove the use of MXC_INTERNAL_IRQS

As the part of the effort to enable SPARE_IRQ for imx platform,
the macro MXC_INTERNAL_IRQS will be removed.  The imx serial driver
has a references to it for a decision on flags of request_irq call
based on rtsirq is beyond MXC_INTERNAL_IRQS.  However the searching
on imx platform code tells that rtsirq will never be beyond
MXC_INTERNAL_IRQS.  That said, the check, consequently the reference
to MXC_INTERNAL_IRQS are not needed, so remove them.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: linux-serial@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 4ef747307ecbb51a8ae195191243000e16c51795..d5c689d6217e3a2eb46223fa1ffd01b77e15e0df 100644 (file)
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -169,7 +169,6 @@
 #define SERIAL_IMX_MAJOR        207
 #define MINOR_START            16
 #define DEV_NAME               "ttymxc"
-#define MAX_INTERNAL_IRQ       MXC_INTERNAL_IRQS
 
 /*
  * This determines how often we check the modem status signals
@@ -741,10 +740,7 @@ static int imx_startup(struct uart_port *port)
 
                /* do not use RTS IRQ on IrDA */
                if (!USE_IRDA(sport)) {
-                       retval = request_irq(sport->rtsirq, imx_rtsint,
-                                    (sport->rtsirq < MAX_INTERNAL_IRQ) ? 0 :
-                                      IRQF_TRIGGER_FALLING |
-                                      IRQF_TRIGGER_RISING,
+                       retval = request_irq(sport->rtsirq, imx_rtsint, 0,
                                        DRIVER_NAME, sport);
                        if (retval)
                                goto error_out3;