From: Sakari Ailus <sakari.ailus@xxxxxx>
Only try parsing bus specific properties in this case.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxx>
---
drivers/media/v4l2-core/v4l2-of.c | 42 +++++++++++++++++++++++++++++----------
1 file changed, 32 insertions(+), 10 deletions(-)
diff --git a/drivers/media/v4l2-core/v4l2-of.c b/drivers/media/v4l2-core/v4l2-of.c
index f2618fd..5304137 100644
--- a/drivers/media/v4l2-core/v4l2-of.c
+++ b/drivers/media/v4l2-core/v4l2-of.c
@@ -20,6 +20,11 @@
#include <media/v4l2-of.h>
+enum v4l2_of_bus_type {
+ V4L2_OF_BUS_TYPE_CSI2 = 0,
+ V4L2_OF_BUS_TYPE_PARALLEL,
+};
+
static int v4l2_of_parse_csi2_bus(const struct device_node *node,
struct v4l2_of_endpoint *endpoint)
{
@@ -151,6 +156,7 @@ static void v4l2_of_parse_parallel_bus(const struct device_node *node,
int v4l2_of_parse_endpoint(const struct device_node *node,
struct v4l2_of_endpoint *endpoint)
{
+ u32 bus_type;
int rval;
of_graph_parse_endpoint(node, &endpoint->base);
@@ -158,17 +164,33 @@ int v4l2_of_parse_endpoint(const struct device_node *node,
memset(&endpoint->bus_type, 0, sizeof(*endpoint) -
offsetof(typeof(*endpoint), bus_type));
- rval = v4l2_of_parse_csi2_bus(node, endpoint);
- if (rval)
- return rval;
- /*
- * Parse the parallel video bus properties only if none
- * of the MIPI CSI-2 specific properties were found.
- */
- if (endpoint->bus.mipi_csi2.flags == 0)
- v4l2_of_parse_parallel_bus(node, endpoint);
+ rval = of_property_read_u32(node, "bus-type", &bus_type);
+ if (rval < 0) {
+ endpoint->bus_type = 0;
+ rval = v4l2_of_parse_csi2_bus(node, endpoint);
+ if (rval)
+ return rval;
+ /*
+ * Parse the parallel video bus properties only if none
+ * of the MIPI CSI-2 specific properties were found.
+ */
+ if (endpoint->bus.mipi_csi2.flags == 0)
+ v4l2_of_parse_parallel_bus(node, endpoint);
+
+ return 0;
+ }
- return 0;
+ switch (bus_type) {
+ case V4L2_OF_BUS_TYPE_CSI2:
+ return v4l2_of_parse_csi2_bus(node, endpoint);
+ case V4L2_OF_BUS_TYPE_PARALLEL:
+ v4l2_of_parse_parallel_bus(node, endpoint);
+ return 0;
+ default:
+ pr_warn("bad bus-type %u, device_node \"%s\"\n",
+ bus_type, node->full_name);
+ return -EINVAL;
+ }
}
EXPORT_SYMBOL(v4l2_of_parse_endpoint);
--
1.9.1
--
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