This patch updates samsung pmu (power management unit) binding information.

CC: Leela Krishna Amudala <l.kris...@samsung.com>
CC: Guenter Roeck <li...@roeck-us.net>
CC: Rob Landley <r...@landley.net>
Signed-off-by: Pankaj Dubey <pankaj.du...@samsung.com>
---
 Documentation/devicetree/bindings/arm/samsung/pmu.txt |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/samsung/pmu.txt 
b/Documentation/devicetree/bindings/arm/samsung/pmu.txt
index f1f1552..ac9b45c 100644
--- a/Documentation/devicetree/bindings/arm/samsung/pmu.txt
+++ b/Documentation/devicetree/bindings/arm/samsung/pmu.txt
@@ -2,14 +2,21 @@ SAMSUNG Exynos SoC series PMU Registers
 
 Properties:
  - compatible : should contain two values. First value must be one from 
following list:
+                  - "samsung,exynos4210-pmu" - for Exynos4210 SoC,
+                  - "samsung,exynos4212-pmu" - for Exynos4212 SoC,
+                  - "samsung,exynos4412-pmu" - for Exynos4412 SoC,
                   - "samsung,exynos5250-pmu" - for Exynos5250 SoC,
                   - "samsung,exynos5420-pmu" - for Exynos5420 SoC.
                second value must be always "syscon".
 
  - reg : offset and length of the register set.
 
+ - samsung,syscon-phandle : reference to syscon node. This property points to 
syscon node
+               holding the PMU base address.
+
 Example :
 pmu_system_controller: system-controller@10040000 {
        compatible = "samsung,exynos5250-pmu", "syscon";
        reg = <0x10040000 0x5000>;
+       samsung,syscon-phandle = <&pmu_system_controller>;
 };
-- 
1.7.10.4

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