soc: samsung: chipid: Update DT bindings documentation

Document "samsung,exynos5433-chipid" compatible and add description
of 'reg' property for Exynos5433.

Change-Id: I9f22c76aabd46ea7aa31cfbecbb64131914e9938
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>

diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt
index 85c5dfd..3e30108 100644 (file)
--- a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt
+++ b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt
@@ -1,9 +1,13 @@
-SAMSUNG Exynos SoCs Chipid driver.
+SAMSUNG Exynos SoC series CHIPID subsystem
 
 Required properties:
-- compatible : Should at least contain "samsung,exynos4210-chipid".
+- compatible : Should at least contain "samsung,exynos4210-chipid";
+  For Exynos5433 SoC should also contain "samsung,exynos5433-chipid".
 
-- reg: offset and length of the register set
+- reg: Offset and length of the register set. For "samsung,exynos5433-chipid"
+  compatible this property should contain at least two entries, i.e. it should
+  describe two IO register regions, where the second one corresponds to
+  the ABB registers region.
 
 Example:
        chipid@10000000 {