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Groups > linux.kernel > #1343130
| From | Zhen Lei <thunder.leizhen@huawei.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 2/2] PCI: generic: add description of property "interrupt-skip-mask" |
| Date | 2016-02-25 13:00 +0100 |
| Message-ID | <r62Km-3eF-7@gated-at.bofh.it> (permalink) |
| References | <r62Kl-3eF-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Interrupt Pin register is read-only and optional. Some pci devices may use msi/msix but leave the value of Interrupt Pin non-zero. In this case, the driver will print information as below: pci 0000:40:00.0: of_irq_parse_pci() failed with rc=-22 It's easily lead to misinterpret. Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> --- Documentation/devicetree/bindings/pci/host-generic-pci.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/host-generic-pci.txt b/Documentation/devicetree/bindings/pci/host-generic-pci.txt index 3f1d3fc..0f10978 100644 --- a/Documentation/devicetree/bindings/pci/host-generic-pci.txt +++ b/Documentation/devicetree/bindings/pci/host-generic-pci.txt @@ -70,6 +70,8 @@ Practice: Interrupt Mapping' and requires the following properties: - interrupt-map-mask : <see aforementioned specification> +- interrupt-skip-mask: Explicitly declare which pci devices only use msi/msix +but leave the value of Interrupt Pin non-zero. Example: -- 2.5.0
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[PATCH 1/2] pci/of: to support explicitly declare interrupt pins unused Zhen Lei <thunder.leizhen@huawei.com> - 2016-02-25 13:00 +0100
[PATCH 2/2] PCI: generic: add description of property "interrupt-skip-mask" Zhen Lei <thunder.leizhen@huawei.com> - 2016-02-25 13:00 +0100
Re: [PATCH 2/2] PCI: generic: add description of property "interrupt-skip-mask" Mark Rutland <mark.rutland@arm.com> - 2016-02-25 13:30 +0100
Re: [PATCH 2/2] PCI: generic: add description of property "interrupt-skip-mask" "Leizhen (ThunderTown)" <thunder.leizhen@huawei.com> - 2016-02-26 08:30 +0100
Re: [PATCH 2/2] PCI: generic: add description of property "interrupt-skip-mask" Mark Rutland <mark.rutland@arm.com> - 2016-02-26 12:50 +0100
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