Message ID | 1502776547-30542-4-git-send-email-oza.oza@broadcom.com |
---|---|
State | Not Applicable, archived |
Headers | show |
On Tue, Aug 15, 2017 at 11:25:47AM +0530, Oza Pawandeep wrote: > Add description for optional device tree property > 'prsnt-gpios' for PCI hotplug feature. > > Signed-off-by: Oza Pawandeep <oza.oza@broadcom.com> > Reviewed-by: Ray Jui <ray.jui@broadcom.com> Acked-by: Rob Herring <robh@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt index b8e48b4..0c5f631 100644 --- a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt +++ b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt @@ -72,6 +72,20 @@ Optional properties: - brcm,pcie-msi-inten: Needs to be present for some older iProc platforms that require the interrupt enable registers to be set explicitly to enable MSI +Optional properties: +- slot-pluggable: PCI hotplug feature is supported. +- prsnt-gpios: Array of gpios, needs to be present if Hotplug is supported. + +Refer to the following binding documents for more detailed description on +the use of 'slot-pluggable' and 'prsnt-gpios'. + Documentation/devicetree/bindings/pci/pci.txt + +Example: +prsnt-gpios: <&pca9505 32 1>, <&pca9505 33 1>; +This is x4 connector: monitoring max 2 present lines. +prsnt-gpios: <&pca9505 32 1>, <&pca9505 33 1>, <&pca9505 34 1>; +This is x8 connector: monitoring max 3 present lines. + Example: pcie0: pcie@18012000 { compatible = "brcm,iproc-pcie";