mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-06 16:49:22 +00:00
Code Issues Releases Wiki Activity

drm/omap: don't check dispc timings for DSI

Browse source 
While most display types only forward their VM to the DISPC, this
is not true for DSI. DSI calculates the VM for DISPC based on its
own, but it's not identical. Actually the DSI VM is not even a valid
DISPC VM making this check fail. Let's restore the old behaviour
and avoid checking the DISPC VM for DSI here.

Fixes: 7c27fa57ef ("drm/omap: Call dispc timings check operation directly")
Acked-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Sebastian Reichel 2019-05-23 22:07:54 +02:00 committed by Tomi Valkeinen
parent 81f2ca2499
commit ad9df7d91b
1 changed files with 14 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
drivers/gpu/drm/omapdrm/omap_crtc.c
View file

@ -395,10 +395,20 @@ static enum drm_mode_status omap_crtc_mode_valid(struct drm_crtc *crtc,
int r;
drm_display_mode_to_videomode(mode, &vm);
r = priv->dispc_ops->mgr_check_timings(priv->dispc, omap_crtc->channel,
&vm);
if (r)
return r;
/*
* DSI might not call this, since the supplied mode is not a
* valid DISPC mode. DSI will calculate and configure the
* proper DISPC mode later.
*/
if (omap_crtc->pipe->output->next == NULL ||
omap_crtc->pipe->output->next->type != OMAP_DISPLAY_TYPE_DSI) {
r = priv->dispc_ops->mgr_check_timings(priv->dispc,
omap_crtc->channel,
&vm);
if (r)
return r;
}
/* Check for bandwidth limit */
if (priv->max_bandwidth) {