of/documentation: Update G2D documentation

Exynos5250 G2D IP requires only the gate clock. Update the
binding documentation accordingly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Inki Dae <inki.dae@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>

diff --git a/Documentation/devicetree/bindings/gpu/samsung-g2d.txt b/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
index 3f454ff..c4f358d 100644 (file)
--- a/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
+++ b/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
@@ -11,8 +11,11 @@ Required properties:
 
   - interrupts : G2D interrupt number to the CPU.
   - clocks : from common clock binding: handle to G2D clocks.
-  - clock-names : from common clock binding: must contain "sclk_fimg2d" and
-                 "fimg2d", corresponding to entries in the clocks property.
+  - clock-names : names of clocks listed in clocks property, in the same
+                 order, depending on SoC type:
+                 - for S5PV210 and Exynos4 based SoCs: "fimg2d" and
+                   "sclk_fimg2d"
+                 - for Exynos5250 SoC: "fimg2d".
 
 Example:
        g2d@12800000 {