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Commit 69d812f5 authored by Guo Ren's avatar Guo Ren
Browse files

dt-bindings: interrupt-controller: Update csky mpintc 



Add trigger type setting for csky,mpintc. The driver also could
support #interrupt-cells <1> and it wouldn't invalidate existing
DTs. Here we only show the complete format.

Signed-off-by: default avatarGuo Ren <ren_guo@c-sky.com>
Reviewed-by: default avatarRob Herring <robh+dt@kernel.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
parent e7534198

Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt

+16 −4
Original line number Diff line number Diff line
@@ -6,11 +6,16 @@ C-SKY Multi-processors Interrupt Controller is designed for ck807/ck810/ck860 
SMP soc, and it also could be used in non-SMP system.



Interrupt number definition:



  0-15  : software irq, and we use 15 as our IPI_IRQ.

 16-31  : private  irq, and we use 16 as the co-processor timer.

 31-1024: common irq for soc ip.



Interrupt triger mode: (Defined in dt-bindings/interrupt-controller/irq.h)

 IRQ_TYPE_LEVEL_HIGH (default)

 IRQ_TYPE_LEVEL_LOW

 IRQ_TYPE_EDGE_RISING

 IRQ_TYPE_EDGE_FALLING



=============================

intc node bindings definition

=============================
@@ -26,15 +31,22 @@ intc node bindings definition 
	- #interrupt-cells

		Usage: required

		Value type: <u32>

		Definition: must be <1>

		Definition: <2>

	- interrupt-controller:

		Usage: required



Examples:

Examples: ("interrupts = <irq_num IRQ_TYPE_XXX>")

---------

#include <dt-bindings/interrupt-controller/irq.h>



	intc: interrupt-controller {

		compatible = "csky,mpintc";

		#interrupt-cells = <1>;

		#interrupt-cells = <2>;

		interrupt-controller;

	};



	device: device-example {

		...

		interrupts = <34 IRQ_TYPE_EDGE_RISING>;

		interrupt-parent = <&intc>;

	};