Commit Graph

3 Commits

Author SHA1 Message Date
Tomi Valkeinen
67d8ffdd68 drm/omap: HDMI: support double-pixel pixel clock
We need double-pixel mode (pixel repetition) for interlace modes. This
patch adds the necessary support to HDMI to double the pixel clock when
double-pixel mode is used.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-03-03 17:36:42 +02:00
Tomi Valkeinen
4e4b53ceb5 drm/omap: HDMI: change enable/disable to avoid sync-losts
We occasionally see DISPC sync-lost errors when enabling and disabling
HDMI. Sometimes we get only a few, which get handled (ignored) by the
driver, but sometimes there's a flood of the errors which doesn't seem
to stop.

The HW team has root caused this to the order in which HDMI and DISPC
are enabled/disabled. Currently we enable HDMI first, and then DISPC,
and vice versa when disabling. HW team's suggestion is to do it the
other way around.

This patch changes the order, but this has two side effects as the pixel
clock is produced by HDMI, and the clock is not running when we
enable/disable DISPC:

* When enabling DISPC first, we don't get vertical sync events
* When disabling DISPC last, we don't get FRAMEDONE event

At the moment we use both of those to verify that DISPC has been
enabled/disabled properly. Thus this patch also needs to change the
omapdrm and omapdss which handle the DISPC side.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-03-03 17:36:40 +02:00
Tomi Valkeinen
9960aa7cb5 drm/omap: move omapdss & displays under omapdrm
Now that omapfb has its own copy of omapdss and display drivers, we can
move omapdss and display drivers which omapdrm uses to omapdrm's
directory.

We also need to change the main drm Makefile so that omapdrm directory
is always entered, because omapdss has a file that can't be built as a
module.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Acked-by: Rob Clark <robdclark@gmail.com>
2015-12-29 11:07:48 +02:00