[PATCH] Docs: dt: add #msi-cells to GICv3 ITS binding
From: robh@kernel.org (Rob Herring)
Date: 2015-09-17 19:39:25
Also in:
linux-devicetree
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 <mark.rutland@arm.com>
Acked-by: Marc Zyngier <redacted>
Cc: Rob Herring <robh+dt@kernel.org>Applied, thanks. Rob
quoted hunk
--- 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 at 2c200000 { compatible = "arm,gic-v3-its"; msi-controller; + #msi-cells = <1>; reg = <0x0 0x2c200000 0 0x200000>; }; };@@ -107,12 +110,14 @@ Examples: gic-its at 2c200000 { compatible = "arm,gic-v3-its"; msi-controller; + #msi-cells = <1>; reg = <0x0 0x2c200000 0 0x200000>; }; gic-its at 2c400000 { compatible = "arm,gic-v3-its"; msi-controller; + #msi-cells = <1>; reg = <0x0 0x2c400000 0 0x200000>; }; };