From cfcc14ca6de0d666ad38114699cbd6f9f161f72a Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Tue, 24 May 2022 03:05:14 +0200
Subject: drm/bridge: icn6211: Convert to drm_of_get_data_lanes_count_ep
Git-commit: 4af48f1d1d0a6f050ffcfe83e939c9455d51267f
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: Jagan Teki <jagan@amarulasolutions.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/20220524010522.528569-3-marex@denx.de
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/bridge/chipone-icn6211.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/bridge/chipone-icn6211.c b/drivers/gpu/drm/bridge/chipone-icn6211.c
index 2b8cf64cbd80..d25bc62bfebd 100644
--- a/drivers/gpu/drm/bridge/chipone-icn6211.c
+++ b/drivers/gpu/drm/bridge/chipone-icn6211.c
@@ -498,21 +498,18 @@ static int chipone_dsi_attach(struct chipone *icn)
{
struct mipi_dsi_device *dsi = icn->dsi;
struct device *dev = icn->dev;
- struct device_node *endpoint;
int dsi_lanes, ret;
- endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, 0);
- dsi_lanes = of_property_count_u32_elems(endpoint, "data-lanes");
- of_node_put(endpoint);
+ dsi_lanes = drm_of_get_data_lanes_count_ep(dev->of_node, 0, 0, 1, 4);
/*
* If the 'data-lanes' property does not exist in DT or is invalid,
* default to previously hard-coded behavior, which was 4 data lanes.
*/
- if (dsi_lanes >= 1 && dsi_lanes <= 4)
- icn->dsi->lanes = dsi_lanes;
- else
+ if (dsi_lanes < 0)
icn->dsi->lanes = 4;
+ else
+ icn->dsi->lanes = dsi_lanes;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
--
2.38.1