Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752531AbaKZLah (ORCPT ); Wed, 26 Nov 2014 06:30:37 -0500 Received: from foss-mx-na.foss.arm.com ([217.140.108.86]:39591 "EHLO foss-mx-na.foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752116AbaKZLaf (ORCPT ); Wed, 26 Nov 2014 06:30:35 -0500 Message-ID: <5475B9D4.30103@arm.com> Date: Wed, 26 Nov 2014 11:30:28 +0000 From: Marc Zyngier User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.2.0 MIME-Version: 1.0 To: Mark Rutland CC: Thomas Gleixner , Jason Cooper , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "suravee.suthikulpanit@amd.com" , Jiang Liu , Yingjoe Chen Subject: Re: [PATCH v11 2/2] irqchip: gicv2m: Add DT bindings for GICv2m References: <1416941243-7181-1-git-send-email-marc.zyngier@arm.com> <1416941243-7181-3-git-send-email-marc.zyngier@arm.com> <20141126111246.GB4340@leverpostej> In-Reply-To: <20141126111246.GB4340@leverpostej> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 >> >> Update the GIC DT bindings to support GICv2m. >> >> Signed-off-by: Suravee Suthikulpanit >> [maz: split DT patch from main driver, updated changelog] >> Signed-off-by: Marc Zyngier >> --- >> 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... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/