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authorMax Krummenacher <max.krummenacher@toradex.com>2025-07-28 18:00:50 +0300
committerLuca Ceresoli <luca.ceresoli@bootlin.com>2026-05-04 13:36:32 +0300
commit9a56caf49525e8a0ee349fb69db101d018a95a66 (patch)
tree6f9ddd2b70b98905a3c6edb82f863e7d6b077de2
parent55a412e3a78104036bbb1036e2ebe8fa4fb41770 (diff)
downloadlinux-9a56caf49525e8a0ee349fb69db101d018a95a66.tar.xz
drm/bridge: lontium-lt8912b: Do not generate HFP
The datasheet of lontium-lt8912b doesn't require blanking during the HFP period. Thus use LP during HFP. Tested with a samsung-dsim (i.MX8 MM) and a tc358768 DPI to DSI bridge as the DSI host. Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://patch.msgid.link/20250728150059.2642055-1-max.oss.09@gmail.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
-rw-r--r--drivers/gpu/drm/bridge/lontium-lt8912b.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bridge/lontium-lt8912b.c
index 8a0b48efca58..729b12b67470 100644
--- a/drivers/gpu/drm/bridge/lontium-lt8912b.c
+++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c
@@ -493,6 +493,7 @@ static int lt8912_attach_dsi(struct lt8912 *lt)
dsi->mode_flags = MIPI_DSI_MODE_VIDEO |
MIPI_DSI_MODE_LPM |
+ MIPI_DSI_MODE_VIDEO_NO_HFP |
MIPI_DSI_MODE_NO_EOT_PACKET;
ret = devm_mipi_dsi_attach(dev, dsi);