Commit eef0dce2 authored by Yang Yingliang's avatar Yang Yingliang Committed by Yuntao Liu
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dt-bindings/irqchip/mbigen: add example of MBIGEN generate SPIs 

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8NULW


CVE: N/A

-------------------------------------------------

Now MBIGEN can support to generate SPIs by writing
GICD_SETSPIR. Add dt example to help document.

Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarYuntao Liu <liuyuntao12@huawei.com>
parent 4f8d22b1

Documentation/devicetree/bindings/interrupt-controller/hisilicon,mbigen-v2.txt

+16 −1
Original line number Original line Diff line number Diff line
@@ -10,7 +10,7 @@ Hisilicon designed mbigen to collect and generate interrupt. 








Non-pci devices can connect to mbigen and generate the

Non-pci devices can connect to mbigen and generate the

interrupt by writing ITS register.

interrupt by writing GICD or ITS register.





The mbigen chip and devices connect to mbigen have the following properties:

The mbigen chip and devices connect to mbigen have the following properties:
@@ -64,6 +64,13 @@ Examples: 
				num-pins = <2>;

				num-pins = <2>;

				#interrupt-cells = <2>;

				#interrupt-cells = <2>;

			};

			};



			mbigen_spi_example:spi_example {

				interrupt-controller;

				msi-parent = <&gic>;

				num-pins = <2>;

				#interrupt-cells = <2>;

			};

	};

	};





Devices connect to mbigen required properties:

Devices connect to mbigen required properties:
@@ -82,3 +89,11 @@ Examples: 
		interrupts =	<656 1>,

		interrupts =	<656 1>,

				<657 1>;

				<657 1>;

	};

	};



	spi_example: spi0@0 {

		compatible = "spi,example";

		reg = <0 0 0 0>;

		interrupt-parent = <&mbigen_spi_example>;

		interrupts = <13 4>,

			     <14 4>;

	};