[media] adv7604: Specify the default input through platform data

And set input routing when initializing the device.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index b14dc7d..342d73d 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -2441,6 +2441,13 @@
 
 	disable_input(sd);
 
+	if (pdata->default_input >= 0 &&
+	    pdata->default_input < state->source_pad) {
+		state->selected_input = pdata->default_input;
+		select_input(sd);
+		enable_input(sd);
+	}
+
 	/* power */
 	io_write(sd, 0x0c, 0x42);   /* Power up part and power down VDP */
 	io_write(sd, 0x0b, 0x44);   /* Power down ESDP block */