[PATCH 11/11] drm/bridge: rcar: Convert to drm_of_get_data_lanes_ep

[Marek Vasut]

Convert driver to use this new helper to standardize
OF "data-lanes" parsing.

Signed-off-by: Marek Vasut <ma...@denx.de>
Cc: Andrzej Hajda <andrzej.ha...@intel.com>
Cc: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Cc: Lucas Stach <l.st...@pengutronix.de>
Cc: Maxime Ripard <max...@cerno.tech>
Cc: Robert Foss <robert.f...@linaro.org>
Cc: Sam Ravnborg <s...@ravnborg.org>
To: dri-devel@lists.freedesktop.org
---
 drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c 
b/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c
index 891bb956fd61b..915c74c0a37fd 100644
--- a/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c
+++ b/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c
@@ -683,19 +683,10 @@ static int rcar_mipi_dsi_parse_dt(struct rcar_mipi_dsi 
*dsi)
        u32 data_lanes[4];
        int ret;
 
-       ep = of_graph_get_endpoint_by_regs(dsi->dev->of_node, 1, 0);
-       if (!ep) {
-               dev_dbg(dsi->dev, "unconnected port@1\n");
-               return -ENODEV;
-       }
-
-       ret = of_property_read_variable_u32_array(ep, "data-lanes", data_lanes,
-                                                 1, 4);
-       of_node_put(ep);
-
+       ret = drm_of_get_data_lanes_ep(dsi->dev->of_node, 1, 0, 1, 4);
        if (ret < 0) {
                dev_err(dsi->dev, "missing or invalid data-lanes property\n");
-               return -ENODEV;
+               return ret;
        }
 
        dsi->num_data_lanes = ret;
-- 
2.35.1