gpu: ipu-di: silence videomode logspam

Adapting the videomode to the hardware constraints is something that
can and must happen during normal operation and isn't something that
the user can avoid. So printing a warning each time it happens isn't
helpful.

Demote this message to the debug level.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

drivers/gpu/ipu-v3/ipu-di.c

@@ -535,7 +535,7 @@ int ipu_di_adjust_videomode(struct ipu_di *di, struct videomode *mode)
 		return -EINVAL;
 	}
 
-	dev_warn(di->ipu->dev, "videomode adapted for IPU restrictions\n");
+	dev_dbg(di->ipu->dev, "videomode adapted for IPU restrictions\n");
 	return 0;
 }
 EXPORT_SYMBOL_GPL(ipu_di_adjust_videomode);