diff options
Diffstat (limited to 'drivers/gpu/drm/mcde/mcde_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/mcde/mcde_dsi.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/gpu/drm/mcde/mcde_dsi.c b/drivers/gpu/drm/mcde/mcde_dsi.c index 981923caa7e6..a342e898298b 100644 --- a/drivers/gpu/drm/mcde/mcde_dsi.c +++ b/drivers/gpu/drm/mcde/mcde_dsi.c @@ -148,9 +148,22 @@ static void mcde_dsi_attach_to_mcde(struct mcde_dsi *d) { d->mcde->mdsi = d->mdsi; - d->mcde->video_mode = !!(d->mdsi->mode_flags & MIPI_DSI_MODE_VIDEO); - /* Enable use of the TE signal for all command mode panels */ - d->mcde->te_sync = !d->mcde->video_mode; + /* + * Select the way the DSI data flow is pushing to the display: + * currently we just support video or command mode depending + * on the type of display. Video mode defaults to using the + * formatter itself for synchronization (stateless video panel). + * + * FIXME: add flags to struct mipi_dsi_device .flags to indicate + * displays that require BTA (bus turn around) so we can handle + * such displays as well. Figure out how to properly handle + * single frame on-demand updates with DRM for command mode + * displays (MCDE_COMMAND_ONESHOT_FLOW). + */ + if (d->mdsi->mode_flags & MIPI_DSI_MODE_VIDEO) + d->mcde->flow_mode = MCDE_VIDEO_FORMATTER_FLOW; + else + d->mcde->flow_mode = MCDE_COMMAND_TE_FLOW; } static int mcde_dsi_host_attach(struct mipi_dsi_host *host, |