serial/imx: make devdata member point to const data

This is only cosmetic for now. In case that

	http://mid.gmane.org/1335171381-24869-1-git-send-email-u.kleine-koenig@pengutronix.de

will be applied, it fixes a warning

	drivers/tty/serial/imx.c: In function 'serial_imx_probe_dt':
	drivers/tty/serial/imx.c:1430:17: warning: assignment discards 'const' qualifier from pointer target type [enabled by default]

though.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 4ef747307ecb..0af4eec8c7b1 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -207,7 +207,7 @@ struct imx_port {
         unsigned short          trcv_delay; /* transceiver delay */
         struct clk              *clk_ipg;
         struct clk              *clk_per;
-        struct imx_uart_data    *devdata;
+        const struct imx_uart_data *devdata;
 };
 
 struct imx_port_ucrs {