drm/bridge: anx7625: Convert to drm_of_get_data_lanes_count

Convert driver to use this new helper to standardize
OF "data-lanes" parsing.
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Xin Ji <xji@analogixsemi.com>
To: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20220524010522.528569-2-marex@denx.de

drivers/gpu/drm/bridge/analogix/anx7625.c

@@ -1637,16 +1637,16 @@ static int anx7625_parse_dt(struct device *dev,
 		if (of_property_read_u32(ep0, "bus-type", &bus_type))
 			bus_type = 0;
 
-		mipi_lanes = of_property_count_u32_elems(ep0, "data-lanes");
+		mipi_lanes = drm_of_get_data_lanes_count(ep0, 1, MAX_LANES_SUPPORT);
 		of_node_put(ep0);
 	}
 
 	if (bus_type == V4L2_FWNODE_BUS_TYPE_PARALLEL) /* bus type is Parallel(DSI) */
 		pdata->is_dpi = 0;
 
-	pdata->mipi_lanes = mipi_lanes;
-	if (pdata->mipi_lanes > MAX_LANES_SUPPORT || pdata->mipi_lanes <= 0)
-		pdata->mipi_lanes = MAX_LANES_SUPPORT;
+	pdata->mipi_lanes = MAX_LANES_SUPPORT;
+	if (mipi_lanes > 0)
+		pdata->mipi_lanes = mipi_lanes;
 
 	if (pdata->is_dpi)
 		DRM_DEV_DEBUG_DRIVER(dev, "found MIPI DPI host node.\n");