media: v4l: Add support for CSI-1 and CCP2 busses
CCP2 and CSI-1, are older single data lane serial busses.
[mchehab@s-opensource.com: don't use spaces for identation]
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
index d71dd39..ca755a4 100644
--- a/drivers/media/v4l2-core/v4l2-fwnode.c
+++ b/drivers/media/v4l2-core/v4l2-fwnode.c
@@ -154,6 +154,31 @@ static void v4l2_fwnode_endpoint_parse_parallel_bus(
}
+void v4l2_fwnode_endpoint_parse_csi1_bus(struct fwnode_handle *fwnode,
+ struct v4l2_fwnode_endpoint *vep,
+ u32 bus_type)
+{
+ struct v4l2_fwnode_bus_mipi_csi1 *bus = &vep->bus.mipi_csi1;
+ u32 v;
+
+ if (!fwnode_property_read_u32(fwnode, "clock-inv", &v))
+ bus->clock_inv = v;
+
+ if (!fwnode_property_read_u32(fwnode, "strobe", &v))
+ bus->strobe = v;
+
+ if (!fwnode_property_read_u32(fwnode, "data-lanes", &v))
+ bus->data_lane = v;
+
+ if (!fwnode_property_read_u32(fwnode, "clock-lanes", &v))
+ bus->clock_lane = v;
+
+ if (bus_type == V4L2_FWNODE_BUS_TYPE_CCP2)
+ vep->bus_type = V4L2_MBUS_CCP2;
+ else
+ vep->bus_type = V4L2_MBUS_CSI1;
+}
+
/**
* v4l2_fwnode_endpoint_parse() - parse all fwnode node properties
* @fwnode: pointer to the endpoint's fwnode handle
@@ -187,17 +212,28 @@ int v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwnode,
fwnode_property_read_u32(fwnode, "bus-type", &bus_type);
- rval = v4l2_fwnode_endpoint_parse_csi2_bus(fwnode, vep);
- if (rval)
- return rval;
- /*
- * Parse the parallel video bus properties only if none
- * of the MIPI CSI-2 specific properties were found.
- */
- if (vep->bus.mipi_csi2.flags == 0)
- v4l2_fwnode_endpoint_parse_parallel_bus(fwnode, vep);
+ switch (bus_type) {
+ case V4L2_FWNODE_BUS_TYPE_GUESS:
+ rval = v4l2_fwnode_endpoint_parse_csi2_bus(fwnode, vep);
+ if (rval)
+ return rval;
+ /*
+ * Parse the parallel video bus properties only if none
+ * of the MIPI CSI-2 specific properties were found.
+ */
+ if (vep->bus.mipi_csi2.flags == 0)
+ v4l2_fwnode_endpoint_parse_parallel_bus(fwnode, vep);
- return 0;
+ return 0;
+ case V4L2_FWNODE_BUS_TYPE_CCP2:
+ case V4L2_FWNODE_BUS_TYPE_CSI1:
+ v4l2_fwnode_endpoint_parse_csi1_bus(fwnode, vep, bus_type);
+
+ return 0;
+ default:
+ pr_warn("unsupported bus type %u\n", bus_type);
+ return -EINVAL;
+ }
}
EXPORT_SYMBOL_GPL(v4l2_fwnode_endpoint_parse);