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drm/bridge: fsl-ldb: Enable split mode for LVDS dual link
author
Liu Ying
<victor.liu@nxp.com>
Fri, 1 Jul 2022 06:56:33 +0000
(14:56 +0800)
committer
Robert Foss
<robert.foss@linaro.org>
Wed, 6 Jul 2022 13:33:14 +0000
(15:33 +0200)
When LVDS dual link is used, we have to enable the LDB_CTRL_SPLIT_MODE bit.
Fixes:
463db5c2ed4a
("drm: bridge: ldb: Implement simple Freescale i.MX8MP LDB bridge")
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Marek Vasut <marex@denx.de>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link:
https://patchwork.freedesktop.org/patch/msgid/20220701065634.4027537-3-victor.liu@nxp.com
Link:
https://patchwork.freedesktop.org/patch/msgid/20220701065634.4027537-4-victor.liu@nxp.com
drivers/gpu/drm/bridge/fsl-ldb.c
patch
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diff --git
a/drivers/gpu/drm/bridge/fsl-ldb.c
b/drivers/gpu/drm/bridge/fsl-ldb.c
index
846cd06
..
f9e0f8d
100644
(file)
--- a/
drivers/gpu/drm/bridge/fsl-ldb.c
+++ b/
drivers/gpu/drm/bridge/fsl-ldb.c
@@
-138,7
+138,7
@@
static void fsl_ldb_atomic_enable(struct drm_bridge *bridge,
reg = LDB_CTRL_CH0_ENABLE;
if (fsl_ldb->lvds_dual_link)
- reg |= LDB_CTRL_CH1_ENABLE;
+ reg |= LDB_CTRL_CH1_ENABLE
| LDB_CTRL_SPLIT_MODE
;
if (lvds_format_24bpp) {
reg |= LDB_CTRL_CH0_DATA_WIDTH;