This patch describes each nodes of rotator and specifies a example how to bind
it.

Signed-off-by: Chanho Park <chanho61.p...@samsung.com>
Cc: Thomas Abraham <thomas.abra...@linaro.org>
Cc: Kukjin Kim <kgene....@samsung.com>
Cc: Inki Dae <inki....@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
---
 .../devicetree/bindings/gpu/samsung-rotator.txt    |   26 ++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpu/samsung-rotator.txt

diff --git a/Documentation/devicetree/bindings/gpu/samsung-rotator.txt 
b/Documentation/devicetree/bindings/gpu/samsung-rotator.txt
new file mode 100644
index 0000000..31ee7b5
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpu/samsung-rotator.txt
@@ -0,0 +1,26 @@
+* Samsung Image Rotator
+
+Required properties:
+  - compatible : value should be following:
+       (a) "samsung,exynos4210-rotator" for Rotator IP in Exynos4210
+       (b) "samsung,exynos4212-rotator" for Rotator IP in Exynos4212/4412
+       (c) "samsung,exynos5250-rotator" for Rotator IP in Exynos5250
+
+  - reg : Physical base address of the IP registers and length of memory
+         mapped region.
+
+  - interrupts : Interrupt number of Rotator
+
+  - clocks : Clock number described in Documentations/devicetree/binding/clock.
+
+  - clock-names : Clock name.
+
+Example:
+       rotator: rotator@12800000 {
+               compatible = "samsung,exynos4210-rotator";
+               reg = <0x12810000 0x1000>;
+               interrupts = <0 83 0>;
+               clocks = <&clock 278>;
+               clock-names = "rotator";
+               status = "disabled";
+       };
-- 
1.7.9.5

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