[22/32] media: rcar-vin: add chsel information to rvin_info

Commit Message

Niklas Söderlund Nov. 2, 2016, 1:23 p.m. UTC

Each Gen3 SoC have a limited set of predefined routing possibilities for
which CSI2 device and virtual channel can be routed to which VIN
instance.  Prepare to store this information in the struct rvin_info.

Signed-off-by: Niklas Söderlund <[e-mail]>
---
 drivers/media/platform/rcar-vin/rcar-vin.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

Patch

diff --git a/drivers/media/platform/rcar-vin/rcar-vin.h b/drivers/media/platform/rcar-vin/rcar-vin.h
index 90c28a7..cd7d959 100644
--- a/drivers/media/platform/rcar-vin/rcar-vin.h
+++ b/drivers/media/platform/rcar-vin/rcar-vin.h
@@ -35,6 +35,9 @@ 
 /* Max number on VIN instances that can be in a system */
 #define RCAR_VIN_NUM 8
 
+/* Max number of CHSEL values for any Gen3 SoC */
+#define RCAR_CHSEL_MAX 6
+
 enum chip_id {
 	RCAR_H1,
 	RCAR_M1,
@@ -111,6 +114,16 @@  struct rvin_graph_entity {
 
 struct rvin_group;
 
+
+/** struct rvin_group_chsel - Map a CSI2 device and channel for a CHSEL value
+ * @csi:		VIN internal number for CSI2 device
+ * @chan:		CSI2 VC number on remote
+ */
+struct rvin_group_chsel {
+	enum rvin_csi_id csi;
+	int chan;
+};
+
 /**
  * struct rvin_info- Information about the particular VIN implementation
  * @chip:		type of VIN chip
@@ -123,6 +136,9 @@  struct rvin_info {
 
 	unsigned int max_width;
 	unsigned int max_height;
+
+	unsigned int num_chsels;
+	struct rvin_group_chsel chsels[RCAR_VIN_NUM][RCAR_CHSEL_MAX];
 };
 
 /**