diff mbox

[2/2,v2] serial: imx: remove the redundant code

Message ID 1400634587-513-1-git-send-email-b32955@freescale.com (mailing list archive)
State New, archived
Headers show

Commit Message

Huang Shijie May 21, 2014, 1:09 a.m. UTC 
In the imx_startup(), we will reset the uart port which will reset all
the FIFOs, including the URXD.

So the code to clear the RX FIFO is redundant. Just remove it.

Signed-off-by: Huang Shijie <b32955@freescale.com>
---
fix the typo.
---
 drivers/tty/serial/imx.c |    9 ---------
 1 files changed, 0 insertions(+), 9 deletions(-)
diff mbox

Patch

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 64901d0..febf400 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1161,15 +1161,6 @@  static int imx_startup(struct uart_port *port)
 		temp |= UCR2_IRTS;
 	writel(temp, sport->port.membase + UCR2);
 
-	if (USE_IRDA(sport)) {
-		/* clear RX-FIFO */
-		int i = 64;
-		while ((--i > 0) &&
-			(readl(sport->port.membase + URXD0) & URXD_CHARRDY)) {
-			barrier();
-		}
-	}
-
 	if (!is_imx1_uart(sport)) {
 		temp = readl(sport->port.membase + UCR3);
 		temp |= IMX21_UCR3_RXDMUXSEL;