Messages in this thread | | | Date | Wed, 26 Nov 2014 11:30:28 +0000 | From | Marc Zyngier <> | Subject | Re: [PATCH v11 2/2] irqchip: gicv2m: Add DT bindings for GICv2m |
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On 26/11/14 11:12, Mark Rutland wrote: > On Tue, Nov 25, 2014 at 06:47:23PM +0000, Marc Zyngier wrote: >> From: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> >> >> Update the GIC DT bindings to support GICv2m. >> >> Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> >> [maz: split DT patch from main driver, updated changelog] >> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> >> --- >> Documentation/devicetree/bindings/arm/gic.txt | 53 +++++++++++++++++++++++++++ >> 1 file changed, 53 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/arm/gic.txt b/Documentation/devicetree/bindings/arm/gic.txt >> index c7d2fa1..375147e 100644 >> --- a/Documentation/devicetree/bindings/arm/gic.txt >> +++ b/Documentation/devicetree/bindings/arm/gic.txt >> @@ -96,3 +96,56 @@ Example: >> <0x2c006000 0x2000>; >> interrupts = <1 9 0xf04>; >> }; >> + >> + >> +* GICv2m extension for MSI/MSI-x support (Optional) >> + >> +Certain revisions of GIC-400 supports MSI/MSI-x via V2M register frame(s). >> +This is enabled by specifying v2m sub-node(s). >> + >> +Required properties: >> + >> +- compatible : The value here should contain "arm,gic-v2m-frame". >> + >> +- msi-controller : Identifies the node as an MSI controller. >> + >> +- reg : GICv2m MSI interface register base and size > > It would be worth having a note that ranges, #address-cells, and > #size-cells are necessary in the GIC node to map this.
Makes sense. I'll queue a separate patch for this.
Thanks,
M. -- Jazz is not dead. It just smells funny...
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