Some bridge can't get tv edid such as rk1000 cvbs, but
at present bridge can't provide timing without edid. So
we add get_timing interface to provide timing.
Change-Id: Id74802a3bff8140e3677f6633788aacd021afc91
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
Both GPIOs are optional, so we shouldn't fail if any is missing.
Without this fix reset is not deasserted if sleep GPIO is missing.
Change-Id: I25f2d11d7df96a4a93fcd844bcf34c3fb5109336
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Tested-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Cc: Vagrant Cascadian <vagrant@debian.org>
(cherry-picked from 8336a43792a103c13d939b3925cb75322911f7fb)
Add an operation to read EDID, since bridge may have ability to read
EDID from the panel that is connected to it, for example LCD<->eDP bridge.
Change-Id: I03b711cd3a138f83c896ef656ffc5171b30eee40
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
(cherry-picked from fdb5525572ec7dc240ccc960888ae969253fede4)
We haven't quite got pinctrl ready to apply to mainline. We don't want to
GPIO pull-up/down support to the driver model GPIO layer either. So work
around this for now.
We can address this when pinctrl is complete.
Signed-off-by: Simon Glass <sjg@chromium.org>
A video bridge typically converts video from one format to another, e.g.
DisplayPort to LVDS. Add driver model support for these with a simple
interface to control activation and backlight. The uclass supports GPIO
control of power and reset lines.
Signed-off-by: Simon Glass <sjg@chromium.org>
Algea Cao
Vasily Khoruzhick
Simon Glass