V4L/DVB: mx2_camera: add informative camera clock frequency printout

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/mx2_camera.c

@@ -1433,6 +1433,9 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
 	if (err)
 		goto exit_free_emma;
 
+	dev_info(&pdev->dev, "MX2 Camera (CSI) driver probed, clock frequency: %ld\n",
+			clk_get_rate(pcdev->clk_csi));
+
 	return 0;
 
 exit_free_emma: