From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH] Docs: dt: add #msi-cells to GICv3 ITS binding Date: Thu, 17 Sep 2015 14:39:25 -0500 Message-ID: <55FB16ED.5060407@kernel.org> References: <1441619343-12087-1-git-send-email-mark.rutland@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1441619343-12087-1-git-send-email-mark.rutland-5wv7dgnIgG8@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Mark Rutland Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, marc.zyngier-5wv7dgnIgG8@public.gmane.org, Rob Herring List-Id: devicetree@vger.kernel.org On 09/07/2015 04:49 AM, Mark Rutland wrote: > The GICv3 ITS uses sideband master identification data (known as a > DeviceID) to identify which master wrote to a doorbell, and this data is > used to determine how to react in response to the write. > > Commit 1e6db000482fa65a ("irqchip/gicv3-its: Add platform MSI support") > added support per this binding, but failed to update the documentation. > This patch fixes the documentation. > > Signed-off-by: Mark Rutland > Acked-by: Marc Zyngier > Cc: Rob Herring Applied, thanks. Rob > --- > Documentation/devicetree/bindings/arm/gic-v3.txt | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/Documentation/devicetree/bindings/arm/gic-v3.txt b/Documentation/devicetree/bindings/arm/gic-v3.txt > index ddfade4..7803e77 100644 > --- a/Documentation/devicetree/bindings/arm/gic-v3.txt > +++ b/Documentation/devicetree/bindings/arm/gic-v3.txt > @@ -57,6 +57,8 @@ used to route Message Signalled Interrupts (MSI) to the CPUs. > These nodes must have the following properties: > - compatible : Should at least contain "arm,gic-v3-its". > - msi-controller : Boolean property. Identifies the node as an MSI controller > +- #msi-cells: Must be <1>. The single msi-cell is the DeviceID of the device > + which will generate the MSI. > - reg: Specifies the base physical address and size of the ITS > registers. > > @@ -83,6 +85,7 @@ Examples: > gic-its@2c200000 { > compatible = "arm,gic-v3-its"; > msi-controller; > + #msi-cells = <1>; > reg = <0x0 0x2c200000 0 0x200000>; > }; > }; > @@ -107,12 +110,14 @@ Examples: > gic-its@2c200000 { > compatible = "arm,gic-v3-its"; > msi-controller; > + #msi-cells = <1>; > reg = <0x0 0x2c200000 0 0x200000>; > }; > > gic-its@2c400000 { > compatible = "arm,gic-v3-its"; > msi-controller; > + #msi-cells = <1>; > reg = <0x0 0x2c400000 0 0x200000>; > }; > }; > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html