[PATCH 1/3] docs: dts: Add documentation for hi6220 SoC ION node

[Chen Feng <puck.chen@xxxxxxxxxxxxx>]

Documentation for hi6220 SoC ION node

Signed-off-by: Chen Feng <puck.chen@xxxxxxxxxxxxx>
Signed-off-by: Yu Dongbin <yudongbin@xxxxxxxxxxxxx>
---
 .../devicetree/bindings/staging/ion/hi6220-ion.txt | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt

diff --git a/Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt b/Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt
new file mode 100644
index 0000000..5f969d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt
@@ -0,0 +1,27 @@
+Hi6220 SoC ION
+
+Required properties:
+- compatible : "hisilicon,hi6220-ion"
+- list of the ION heaps
+
+Example:
+        hi6220-ion {
+                compatible = "hisilicon,hi6220-ion";
+
+                heap_sys_user@0 {
+                        heap-name = "sys_user";
+                        heap-id   = <0x0>;
+                        heap-base = <0x0>;
+                        heap-size = <0x0>;
+                        heap-type = "ion_system";
+                };
+
+                heap_sys_contig@0 {
+                        heap-name = "sys_contig";
+                        heap-id   = <0x1>;
+                        heap-base = <0x0>;
+                        heap-size = <0x0>;
+                        heap-type = "ion_system_contig";
+                };
+        };
+
-- 
1.9.1

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