[media] media: davinci: vpif: display: separate out subdev from output

vpif_display relied on a 1-1 mapping of output and subdev. This is not
necessarily the case. Separate the two. So there is a list of subdevs
and a list of outputs. Each output refers to a subdev and has routing
information. An output does not have to have a subdev.
The initial output for each channel is set to the fist output.
Currently missing is support for associating multiple subdevs with
an output.

Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

include/media/davinci/vpif_types.h

@@ -20,6 +20,7 @@
 #include <linux/i2c.h>
 
 #define VPIF_CAPTURE_MAX_CHANNELS	2
+#define VPIF_DISPLAY_MAX_CHANNELS	2
 
 enum vpif_if_type {
 	VPIF_IF_BT656,
@@ -39,15 +40,25 @@ struct vpif_subdev_info {
 	struct i2c_board_info board_info;
 };
 
+struct vpif_output {
+	struct v4l2_output output;
+	const char *subdev_name;
+	u32 input_route;
+	u32 output_route;
+};
+
+struct vpif_display_chan_config {
+	const struct vpif_output *outputs;
+	int output_count;
+	bool clip_en;
+};
+
 struct vpif_display_config {
 	int (*set_clock)(int, int);
 	struct vpif_subdev_info *subdevinfo;
 	int subdev_count;
-	const char **output;
-	int output_count;
+	struct vpif_display_chan_config chan_config[VPIF_DISPLAY_MAX_CHANNELS];
 	const char *card_name;
-	bool ch2_clip_en;
-	bool ch3_clip_en;
 };
 
 struct vpif_input {