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dt-bindings: exynos-dp: update ports node binding for panel 

This patch updates a ports node binding for panel.

With this, dp node can have a ports node which describes
a remote endpoint node that can be connected to panel or bridge
node.

Changelog v2:
- remove unnecessary properties and numbering.
- update description about eDP device.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Inki Dae 2015-12-03 16:54:45 +09:00 committed by Inki Dae
parent a9fa852886
commit 2400fc14f7
1 changed files with 37 additions and 4 deletions
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41
Documentation/devicetree/bindings/display/exynos/exynos_dp.txt
View File

@ -1,3 +1,20 @@
Device-Tree bindings for Samsung Exynos Embedded DisplayPort Transmitter(eDP)
DisplayPort is industry standard to accommodate the growing board adoption
of digital display technology within the PC and CE industries.
It consolidates the internal and external connection methods to reduce device
complexity and cost. It also supports necessary features for important cross
industry applications and provides performance scalability to enable the next
generation of displays that feature higher color depths, refresh rates, and
display resolutions.
eDP (embedded display port) device is compliant with Embedded DisplayPort
standard as follows,
- DisplayPort standard 1.1a for Exynos5250 and Exynos5260.
- DisplayPort standard 1.3 for Exynos5422s and Exynos5800.
eDP resides between FIMD and panel or FIMD and bridge such as LVDS.
The Exynos display port interface should be configured based on
the type of panel connected to it.
@ -66,8 +83,15 @@ Optional properties for dp-controller:
Hotplug detect GPIO.
Indicates which GPIO should be used for hotplug
detection
-video interfaces: Device node can contain video interface port
nodes according to [1].
Video interfaces:
Device node can contain video interface port nodes according to [1].
The following are properties specific to those nodes:
endpoint node connected to bridge or panel node:
- remote-endpoint: specifies the endpoint in panel or bridge node.
This node is required in all kinds of exynos dp
to represent the connection between dp and bridge
or dp and panel.
[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
@ -111,9 +135,18 @@ Board Specific portion:
};
ports {
port@0 {
port {
dp_out: endpoint {
remote-endpoint = <&bridge_in>;
remote-endpoint = <&dp_in>;
};
};
};
panel {
...
port {
dp_in: endpoint {
remote-endpoint = <&dp_out>;
};
};
};