This is a note to let you know that I've just added the patch titled
drm/bridge: ti-sn65dsi83: Do not generate HFP/HBP/HSA and EOT packet
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-bridge-ti-sn65dsi83-do-not-generate-hfp-hbp-hsa-.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7f988529a14f2137765cb28674aa049640bc2391
Author: Marek Vasut <marex@xxxxxxx>
Date: Mon Apr 3 21:02:42 2023 +0200
drm/bridge: ti-sn65dsi83: Do not generate HFP/HBP/HSA and EOT packet
[ Upstream commit f4d324fb5628773907dd90342d18f978bd9a6d09 ]
[ Upstream commit ca161b259cc84fe1f4a2ce4c73c3832cf6f713f1 ]
Do not generate the HS front and back porch gaps, the HSA gap and
EOT packet, as per "SN65DSI83 datasheet SLLSEC1I - SEPTEMBER 2012
- REVISED OCTOBER 2020", page 22, these packets are not required.
This makes the TI SN65DSI83 bridge work with Samsung DSIM on i.MX8MN.
Signed-off-by: Marek Vasut <marex@xxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Robert Foss <rfoss@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230403190242.224490-1-marex@xxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi83.c b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
index b3cb910b30852..f96c0a89854b8 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
@@ -272,7 +272,9 @@ static int sn65dsi83_attach(struct drm_bridge *bridge,
dsi->lanes = ctx->dsi_lanes;
dsi->format = MIPI_DSI_FMT_RGB888;
- dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST;
+ dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+ MIPI_DSI_MODE_VIDEO_NO_HFP | MIPI_DSI_MODE_VIDEO_NO_HBP |
+ MIPI_DSI_MODE_VIDEO_NO_HSA | MIPI_DSI_MODE_NO_EOT_PACKET;
ret = mipi_dsi_attach(dsi);
if (ret < 0) {
