linux/Documentation/devicetree
Douglas Anderson cb028e4912 dt-bindings: drm/panel: simple: Add no-hpd property
Some eDP panels that are designed to be always connected to a board
use their HPD signal to signal that they've finished powering on and
they're ready to be talked to.

However, for various reasons it's possible that the HPD signal from
the panel isn't actually hooked up.  In the case where the HPD isn't
hooked up you can look at the timing diagram on the panel datasheet
and insert a delay for the maximum amount of time that the HPD might
take to come up.

Let's add a property in the device tree for this concept.

Reviewed-by: Sean Paul <sean@poorly.run>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20181025222134.174583-1-dianders@chromium.org
2018-10-29 11:53:27 -04:00
..
bindings dt-bindings: drm/panel: simple: Add no-hpd property 2018-10-29 11:53:27 -04:00
00-INDEX
booting-without-of.txt
changesets.txt
dynamic-resolution-notes.txt Documentation: remove dynamic-resolution-notes reference to non-existent file 2018-08-13 08:20:10 -06:00
of_unittest.txt
overlay-notes.txt
todo.txt
usage-model.txt