Merge branch 'exynos-drm-next' of git://git.kernel.org:/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

- Support runtime pm
  . In case of most ARM SoC, each IP has each power domain which should be
    controlled by each IP driver using runtime pm interface. So this patch
    series makes each IP driver to control its own power domain when
    drm dpms is requested.
- Support of_graph based dt binding for DP panel.
  . This patch series adds of_graph based dt binding for DP panel.
    And also it keeps backward compatibility. This includes dt binding
    patch so I got Acked-by from Krzysztof Kozlowski who is a Exynos
    SoC maintainer and from Rob Herring who is a device tree maintainer.

- Cleanup for Exynos DRM IPP enhancement.
  . This patch series is a first step for enhancing existing IPP framework
    which will integrate existing IPP functions with DRM KMS part so that
    these can be transparent to userspace. For other portion of the patch
    series, we will have more times for the review.]

* 'exynos-drm-next' of git://git.kernel.org:/pub/scm/linux/kernel/git/daeinki/drm-exynos: (29 commits)
  drm/exynos: gem: remove old unused prototypes
  drm/exynos: fimd: fix dma burst size setting for small plane size
  drm/exynos: fix clipping when scaling is enabled
  drm/exynos: mixer: use ratio precalculated in exynos_state
  drm/exynos: add generic check for plane state
  drm/exynos: introduce exynos_drm_plane_config structure
  drm/exynos: mixer: enable video overlay plane only when VP is available
  drm/exynos: mixer: use crtc->state->adjusted_mode instead of crtc->mode
  drm/exynos: introduce exynos_drm_plane_state structure
  drm/exynos: move dma_addr attribute from exynos plane to exynos fb
  drm/exynos: exynos7-decon: remove excessive check
  drm/exynos: rotator: convert to common clock framework
  drm/exynos: gsc: add device tree support and remove usage of static mappings
  drm/exynos: gsc: fix wrong pm_runtime state
  drm/exynos: gsc: prepare and unprepare gsc clock
  ARM: dts: Use OF graph for DP to panel connection in exynos5800-peach-pi
  dt-bindings: exynos-dp: update ports node binding for panel
  drm/exynos: dp: add of_graph dt binding support for panel
  drm/exynos: decon: remove unused variables
  drm/exynos: dsi: modify a error type when getting a node failed
  ...

2 files changed, 41 insertions, 4 deletions

diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt b/Documentation/devicetree/bindings/display/exynos/exynos_dp.txt
index 64693f2ebc51..fe4a7a2dea9c 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/media/exynos5-gsc.txt b/Documentation/devicetree/bindings/media/exynos5-gsc.txt
index 0604d42f38d1..5fe9372abb37 100644
--- a/Documentation/devicetree/bindings/media/exynos5-gsc.txt
+++ b/Documentation/devicetree/bindings/media/exynos5-gsc.txt
@@ -7,6 +7,10 @@ Required properties:
 - reg: should contain G-Scaler physical address location and length.
 - interrupts: should contain G-Scaler interrupt number
 
+Optional properties:
+- samsung,sysreg: handle to syscon used to control the system registers to
+  set writeback input and destination
+
 Example:
 
 gsc_0:  gsc@0x13e00000 {