* [PATCH] Docs: dt: add #msi-cells to GICv3 ITS binding
@ 2015-09-07 9:49 ` Mark Rutland
0 siblings, 0 replies; 4+ messages in thread
From: Mark Rutland @ 2015-09-07 9:49 UTC (permalink / raw)
To: linux-arm-kernel
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 <marc.zyngier@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
---
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>;
};
};
--
1.9.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH] Docs: dt: add #msi-cells to GICv3 ITS binding
@ 2015-09-07 9:49 ` Mark Rutland
0 siblings, 0 replies; 4+ messages in thread
From: Mark Rutland @ 2015-09-07 9:49 UTC (permalink / raw)
To: devicetree-u79uwXL29TY76Z2rM5mHXA
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
marc.zyngier-5wv7dgnIgG8, Mark Rutland, Rob Herring
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-5wv7dgnIgG8@public.gmane.org>
Acked-by: Marc Zyngier <marc.zyngier-5wv7dgnIgG8@public.gmane.org>
Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
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>;
};
};
--
1.9.1
--
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^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH] Docs: dt: add #msi-cells to GICv3 ITS binding
@ 2015-09-17 19:39 ` Rob Herring
0 siblings, 0 replies; 4+ messages in thread
From: Rob Herring @ 2015-09-17 19:39 UTC (permalink / raw)
To: linux-arm-kernel
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 <marc.zyngier@arm.com>
> Cc: Rob Herring <robh+dt@kernel.org>
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 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>;
> };
> };
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] Docs: dt: add #msi-cells to GICv3 ITS binding
@ 2015-09-17 19:39 ` Rob Herring
0 siblings, 0 replies; 4+ messages in thread
From: Rob Herring @ 2015-09-17 19:39 UTC (permalink / raw)
To: Mark Rutland
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
marc.zyngier-5wv7dgnIgG8, Rob Herring
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-5wv7dgnIgG8@public.gmane.org>
> Acked-by: Marc Zyngier <marc.zyngier-5wv7dgnIgG8@public.gmane.org>
> Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
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>;
> };
> };
>
--
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^ permalink raw reply [flat|nested] 4+ messages in thread
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2015-09-07 9:49 [PATCH] Docs: dt: add #msi-cells to GICv3 ITS binding Mark Rutland
2015-09-07 9:49 ` Mark Rutland
2015-09-17 19:39 ` Rob Herring
2015-09-17 19:39 ` Rob Herring
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