DT bindings for hisilicon HI655x PMIC chip.
Signed-off-by: Guodong Xu <guodong.xu@xxxxxxxxxx>
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.../bindings/mfd/hisilicon,hi6421v530.txt | 25 ++++++++++++++++++++++
1 file changed, 25 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/hisilicon,hi6421v530.txt
diff --git a/Documentation/devicetree/bindings/mfd/hisilicon,hi6421v530.txt b/Documentation/devicetree/bindings/mfd/hisilicon,hi6421v530.txt
new file mode 100644
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@@ -0,0 +1,25 @@
+Hisilicon Hi6421v530 Power Management Integrated Circuit (PMIC)
+
+The hardware layout for access PMIC Hi6421v530 from AP SoC Hi3660.
+Between PMIC Hi6421v530 and Hi3660, the physical signal channel is SSI.
+We can use memory-mapped I/O to communicate.
+
++----------------+ +-------------+
+| | | |
+| Hi3660 | SSI bus | Hi6421v530 |
+| |-------------| |
+| |(REGMAP_MMIO)| |
++----------------+ +-------------+
+
+Required properties:
+- compatible: Should be "hisilicon,hi6421v530-pmic".
+- reg: Base address of PMIC on Hi3660 SoC.
+- interrupt-controller: Hi6421v530 has internal IRQs (has own IRQ domain).
+
+Example:
+ pmic: pmic@fff34000 {
+ compatible = "hisilicon,hi6421v530-pmic";
+ reg = <0x0 0xfff34000 0x0 0x1000>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ }
--
2.10.2
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