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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /Documentation/devicetree/bindings/display/exynos
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'Documentation/devicetree/bindings/display/exynos')
-rw-r--r--Documentation/devicetree/bindings/display/exynos/exynos_dp.txt41
-rw-r--r--Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt7
2 files changed, 40 insertions, 8 deletions
diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt b/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt
index 64693f2eb..fe4a7a2de 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 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>;
};
};
};
diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt b/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
index 1fd8cf9cb..d474f59be 100644
--- a/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
+++ b/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
@@ -2,10 +2,9 @@ Device-Tree bindings for drm hdmi driver
Required properties:
- compatible: value should be one among the following:
- 1) "samsung,exynos5-hdmi" <DEPRECATED>
- 2) "samsung,exynos4210-hdmi"
- 3) "samsung,exynos4212-hdmi"
- 4) "samsung,exynos5420-hdmi"
+ 1) "samsung,exynos4210-hdmi"
+ 2) "samsung,exynos4212-hdmi"
+ 3) "samsung,exynos5420-hdmi"
- reg: physical base address of the hdmi and length of memory mapped
region.
- interrupts: interrupt number to the cpu.