From 7f5a28de049588a1a66d54e654bc860a7360f17d Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Tue, 24 May 2022 03:05:17 +0200
Subject: drm/bridge: tc358767: Convert to drm_of_get_data_lanes_count
Git-commit: d8609fd1e0742ba3ad2e51bba9dd489dd03d8599
Patch-mainline: v6.0-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
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>
To: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20220524010522.528569-6-marex@denx.de
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/bridge/tc358767.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index 6c6177028742..e4dd4f05f94b 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -1890,18 +1890,18 @@ 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_count(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),
--
2.38.1