5.15-stable review patch. If anyone has any objections, please let me know.
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From: Marek Vasut marex@denx.de
[ 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@denx.de Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Signed-off-by: Robert Foss rfoss@kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20230403190242.224490-1-marex@... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/bridge/ti-sn65dsi83.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
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) {