arm64: hi6220: Document devicetree bindings for Hisilicon hi6220 SoC

This patch adds documentation for the devicetree bindings used by the
DT files of Hisilicon hi6220 SoC mobile platforms.

Signed-off-by: Bintian Wang <bintian.wang@huawei.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt b/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
index f717c7b48603..22c3aaa210ee 100644
--- a/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
+++ b/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
@@ -9,6 +9,9 @@ HiP04 D01 Board
 Required root node properties:
 	- compatible = "hisilicon,hip04-d01";
 
+HiKey Board
+Required root node properties:
+	- compatible = "hisilicon,hikey";
 
 Hisilicon system controller
 
@@ -62,6 +65,36 @@ Example:
 	};
 
 -----------------------------------------------------------------------
+Hisilicon Power Always ON domain controller
+
+Required properties:
+- compatible : "hisilicon,aoctrl"
+- reg : Register address and size
+
+Some clock registers are defined in power always on system controller,
+especially in Hi6220 SoC which is used for mobile platform.
+
+-----------------------------------------------------------------------
+Hisilicon Media domain controller
+
+Required properties:
+- compatible : "hisilicon,mediactrl"
+- reg : Register address and size
+
+Some clock registers of media module are defined in media system
+controller, especially in Hi6220 SoC which is used for mobile platform.
+
+-----------------------------------------------------------------------
+Hisilicon Power Management domain controller
+
+Required properties:
+- compatible : "hisilicon,pmctrl"
+- reg : Register address and size
+
+Some clock registers and PMU registers are defined in power management
+controller, especially in Hin6220 SoC which is used for mobile platform.
+
+-----------------------------------------------------------------------
 Fabric:
 
 Required Properties: