On Tue, Apr 4, 2023 at 12:13 AM Marek Vasut <marex@xxxxxxx> wrote:
>
> Do not generate the HS front and back porch gaps, the HSA gap and
> EOT packet, as these packets are not required. This makes the bridge
> work with Samsung DSIM on i.MX8MM and i.MX8MP.
>
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> ---
> Cc: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>
> Cc: Daniel Vetter <daniel@xxxxxxxx>
> Cc: David Airlie <airlied@xxxxxxxxx>
> Cc: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
> Cc: Jernej Skrabec <jernej.skrabec@xxxxxxxxx>
> Cc: Jonas Karlman <jonas@xxxxxxxxx>
> Cc: Laurent Pinchart <Laurent.pinchart@xxxxxxxxxxxxxxxx>
> Cc: Michael Walle <michael@xxxxxxxx>
> Cc: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> Cc: Robert Foss <rfoss@xxxxxxxxxx>
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> ---
> drivers/gpu/drm/bridge/lontium-lt9211.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/bridge/lontium-lt9211.c b/drivers/gpu/drm/bridge/lontium-lt9211.c
> index 3e19fff6547a2..00db681512385 100644
> --- a/drivers/gpu/drm/bridge/lontium-lt9211.c
> +++ b/drivers/gpu/drm/bridge/lontium-lt9211.c
> @@ -709,7 +709,9 @@ static int lt9211_host_attach(struct lt9211 *ctx)
> dsi->lanes = dsi_lanes;
> dsi->format = MIPI_DSI_FMT_RGB888;
> dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
> - MIPI_DSI_MODE_VIDEO_HSE;
> + MIPI_DSI_MODE_VIDEO_HSE | MIPI_DSI_MODE_VIDEO_NO_HSA |
> + MIPI_DSI_MODE_VIDEO_NO_HFP | MIPI_DSI_MODE_VIDEO_NO_HBP |
> + MIPI_DSI_MODE_NO_EOT_PACKET;
>
> ret = devm_mipi_dsi_attach(dev, dsi);
> if (ret < 0) {
> --
> 2.39.2
>
Reviewed-by: Robert Foss <rfoss@xxxxxxxxxx>
Snoozing this patch for a week before applying.
