On Mon, Dec 07, 2015 at 09:52:37PM +0900, Inki Dae wrote:
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
.../bindings/display/exynos/exynos_dp.txt | 41 +++++++++++++++++++--- 1 file changed, 37 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt b/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt index 64693f2..22efeba 100644 --- a/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt +++ b/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt @@ -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 dpto represent the connection between dp and bridgeor dp and panel.@@ -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>; }; };-- 1.9.1