drm/omap: fix panel/encoder probes

The recent changes which removed platform data support from panels &
encoders had a few mistakes, causing probes of DVI connector and DSI
command mode panels to fail every time due to missing '!'. Fix the
if()s.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/omapdrm/displays/connector-dvi.c

@@ -279,7 +279,7 @@ static int dvic_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, ddata);
 
-	if (pdev->dev.of_node)
+	if (!pdev->dev.of_node)
 		return -ENODEV;
 
 	r = dvic_probe_of(pdev);

drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c

@@ -1180,7 +1180,7 @@ static int dsicm_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, ddata);
 	ddata->pdev = pdev;
 
-	if (pdev->dev.of_node)
+	if (!pdev->dev.of_node)
 		return -ENODEV;
 
 	r = dsicm_probe_of(pdev);