diff mbox series

[06/11] drm/bridge: tc358767: Convert to drm_of_get_data_lanes

Message ID 20220519112657.62283-6-marex@denx.de (mailing list archive)
State New, archived
Headers show
Series [01/11] drm: of: Add drm_of_get_data_lanes and drm_of_get_data_lanes_ep | expand

Commit Message

Marek Vasut May 19, 2022, 11:26 a.m. UTC 
Convert driver to use this new helper to standardize
OF "data-lanes" parsing.

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>
To: dri-devel@lists.freedesktop.org
---
 drivers/gpu/drm/bridge/tc358767.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index 8e210b1176906..a6990a8c08a8b 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -1892,18 +1892,18 @@  static int tc_mipi_dsi_host_attach(struct tc_data *tc)
 	int dsi_lanes, ret;
 
 	endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1);
-	dsi_lanes = of_property_count_u32_elems(endpoint, "data-lanes");
+	dsi_lanes = drm_of_get_data_lanes(endpoint, 1, 4);
 	host_node = of_graph_get_remote_port_parent(endpoint);
 	host = of_find_mipi_dsi_host_by_node(host_node);
 	of_node_put(host_node);
 	of_node_put(endpoint);
 
-	if (dsi_lanes <= 0 || dsi_lanes > 4)
-		return -EINVAL;
-
 	if (!host)
 		return -EPROBE_DEFER;
 
+	if (dsi_lanes < 0)
+		return dsi_lanes;
+
 	dsi = mipi_dsi_device_register_full(host, &info);
 	if (IS_ERR(dsi))
 		return dev_err_probe(dev, PTR_ERR(dsi),