media: v4l: fwnode: Use a less clash-prone name for MAX_DATA_LANES macro

Avoid using a generic name such as MAX_DATA_LANES in a header file widely
included in drivers. Instead, call it V4L2_FWNODE_CSI2_MAX_DATA_LANES.

Fixes: 4ee23621 ("media: v4l2-fwnode: suppress a warning at OF parsing logic")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/v4l2-core/v4l2-fwnode.c

@@ -48,9 +48,10 @@ static int v4l2_fwnode_endpoint_parse_csi2_bus(struct fwnode_handle *fwnode,
 
 	rval = fwnode_property_read_u32_array(fwnode, "data-lanes", NULL, 0);
 	if (rval > 0) {
-		u32 array[1 + MAX_DATA_LANES];
+		u32 array[1 + V4L2_FWNODE_CSI2_MAX_DATA_LANES];
 
-		bus->num_data_lanes = min_t(int, MAX_DATA_LANES, rval);
+		bus->num_data_lanes =
+			min_t(int, V4L2_FWNODE_CSI2_MAX_DATA_LANES, rval);
 
 		fwnode_property_read_u32_array(fwnode, "data-lanes", array,
 					       bus->num_data_lanes);

include/media/v4l2-fwnode.h

@@ -26,7 +26,7 @@
 
 struct fwnode_handle;
 
-#define MAX_DATA_LANES	4
+#define V4L2_FWNODE_CSI2_MAX_DATA_LANES	4
 
 /**
  * struct v4l2_fwnode_bus_mipi_csi2 - MIPI CSI-2 bus data structure
@@ -39,10 +39,10 @@ struct fwnode_handle;
  */
 struct v4l2_fwnode_bus_mipi_csi2 {
 	unsigned int flags;
-	unsigned char data_lanes[MAX_DATA_LANES];
+	unsigned char data_lanes[V4L2_FWNODE_CSI2_MAX_DATA_LANES];
 	unsigned char clock_lane;
 	unsigned short num_data_lanes;
-	bool lane_polarities[1 + MAX_DATA_LANES];
+	bool lane_polarities[1 + V4L2_FWNODE_CSI2_MAX_DATA_LANES];
 };
 
 /**