[PATCH v4 17/27] rcar-vin: prepare digital notifier for group notifier

[Niklas Söderlund]

The media bus parsing functions used by the digital subdevice V4L2
notifier can be shared with the upcoming CSI-2 notifier. To prepare for
this move and rename the function to reflect it's generic.

Signed-off-by: Niklas Söderlund <niklas.soderlund+rene...@ragnatech.se>
---
 drivers/media/platform/rcar-vin/rcar-core.c | 70 +++++++++++++++--------------
 1 file changed, 37 insertions(+), 33 deletions(-)

diff --git a/drivers/media/platform/rcar-vin/rcar-core.c 
b/drivers/media/platform/rcar-vin/rcar-core.c
index ed99b1abb99e9ef9..adc38696a0ba70b9 100644
--- a/drivers/media/platform/rcar-vin/rcar-core.c
+++ b/drivers/media/platform/rcar-vin/rcar-core.c
@@ -45,6 +45,42 @@ static int rvin_find_pad(struct v4l2_subdev *sd, int 
direction)
        return -EINVAL;
 }
 
+static int rvin_parse_v4l2(struct rvin_dev *vin,
+                          struct device_node *ep,
+                          struct v4l2_mbus_config *mbus_cfg)
+{
+       struct v4l2_of_endpoint v4l2_ep;
+       int ret;
+
+       ret = v4l2_of_parse_endpoint(ep, &v4l2_ep);
+       if (ret) {
+               vin_err(vin, "Could not parse v4l2 endpoint\n");
+               return -EINVAL;
+       }
+
+       mbus_cfg->type = v4l2_ep.bus_type;
+
+       switch (mbus_cfg->type) {
+       case V4L2_MBUS_PARALLEL:
+               vin_dbg(vin, "Found PARALLEL media bus\n");
+               mbus_cfg->flags = v4l2_ep.bus.parallel.flags;
+               break;
+       case V4L2_MBUS_BT656:
+               vin_dbg(vin, "Found BT656 media bus\n");
+               mbus_cfg->flags = 0;
+               break;
+       default:
+               vin_err(vin, "Unknown media bus type\n");
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+/* 
-----------------------------------------------------------------------------
+ * Digital async notifier
+ */
+
 static bool rvin_mbus_supported(struct rvin_dev *vin)
 {
        struct v4l2_subdev *sd = vin->digital.subdev;
@@ -145,38 +181,6 @@ static int rvin_digital_notify_bound(struct 
v4l2_async_notifier *notifier,
        return -EINVAL;
 }
 
-static int rvin_digitial_parse_v4l2(struct rvin_dev *vin,
-                                   struct device_node *ep,
-                                   struct v4l2_mbus_config *mbus_cfg)
-{
-       struct v4l2_of_endpoint v4l2_ep;
-       int ret;
-
-       ret = v4l2_of_parse_endpoint(ep, &v4l2_ep);
-       if (ret) {
-               vin_err(vin, "Could not parse v4l2 endpoint\n");
-               return -EINVAL;
-       }
-
-       mbus_cfg->type = v4l2_ep.bus_type;
-
-       switch (mbus_cfg->type) {
-       case V4L2_MBUS_PARALLEL:
-               vin_dbg(vin, "Found PARALLEL media bus\n");
-               mbus_cfg->flags = v4l2_ep.bus.parallel.flags;
-               break;
-       case V4L2_MBUS_BT656:
-               vin_dbg(vin, "Found BT656 media bus\n");
-               mbus_cfg->flags = 0;
-               break;
-       default:
-               vin_err(vin, "Unknown media bus type\n");
-               return -EINVAL;
-       }
-
-       return 0;
-}
-
 static int rvin_digital_graph_parse(struct rvin_dev *vin)
 {
        struct device_node *ep, *np;
@@ -201,7 +205,7 @@ static int rvin_digital_graph_parse(struct rvin_dev *vin)
        }
        of_node_put(np);
 
-       ret = rvin_digitial_parse_v4l2(vin, ep, &vin->mbus_cfg);
+       ret = rvin_parse_v4l2(vin, ep, &vin->mbus_cfg);
        of_node_put(ep);
        if (ret)
                return ret;
-- 
2.12.2