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[1/3] dt-bindings: designware-pcie: document optional msi-parent property

Message ID 1472561830-20932-2-git-send-email-thomas.petazzoni@free-electrons.com (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Thomas Petazzoni Aug. 30, 2016, 12:57 p.m. UTC
This commit updates the Designware PCIe Device Tree binding
documentation to document the optional msi-parent property. This
property allows to point to an external MSI controller, which can
optionally be provided. If provided, this external MSI controller is
used in preference over the internal MSI controller of the Designware
PCIe IP.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 Documentation/devicetree/bindings/pci/designware-pcie.txt | 2 ++
 1 file changed, 2 insertions(+)

Comments

Rob Herring Sept. 2, 2016, 3:01 p.m. UTC | #1
On Tue, Aug 30, 2016 at 02:57:08PM +0200, Thomas Petazzoni wrote:
> This commit updates the Designware PCIe Device Tree binding
> documentation to document the optional msi-parent property. This
> property allows to point to an external MSI controller, which can
> optionally be provided. If provided, this external MSI controller is
> used in preference over the internal MSI controller of the Designware
> PCIe IP.
> 
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> ---
>  Documentation/devicetree/bindings/pci/designware-pcie.txt | 2 ++
>  1 file changed, 2 insertions(+)

Acked-by: Rob Herring <robh@kernel.org>
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diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt
index 6c5322c..7a729bb 100644
--- a/Documentation/devicetree/bindings/pci/designware-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt
@@ -28,6 +28,8 @@  Optional properties:
 - clock-names: Must include the following entries:
 	- "pcie"
 	- "pcie_bus"
+- msi-parent: Pointer to an external MSI controller. If not provided,
+  the built-in MSI controller is used.
 
 Example configuration: