Messages in this thread | | | Subject | Re: [PATCH 1/8] dt-bindings: tegra186-hsp: Add shared interrupts | From | Jon Hunter <> | Date | Tue, 22 May 2018 16:15:05 +0100 |
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On 08/05/18 12:43, Mikko Perttunen wrote: > Non-doorbell interrupts are routed through "shared interrupts". These > interrupts can be mapped to various internal interrupt lines. Add > interrupt properties for shared interrupts to the tegra186-hsp device > tree bindings.
Reading the Tegra documentation, although the doorbells have dedicated interrupts, it appears that the doorbell interrupts can also be routed via these shared interrupts.
> Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> > --- > Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.txt | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.txt b/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.txt > index b99d25fc2f26..9edcdf82d719 100644 > --- a/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.txt > +++ b/Documentation/devicetree/bindings/mailbox/nvidia,tegra186-hsp.txt > @@ -21,6 +21,8 @@ Required properties: > Contains a list of names for the interrupts described by the interrupt > property. May contain the following entries, in any order: > - "doorbell" > + - "sharedN", where 'N' is a number from zero up to the number of > + external interrupts supported by the HSP instance minus one. > Users of this binding MUST look up entries in the interrupt property > by name, using this interrupt-names property to do so. > - interrupts
How is the mapping of shared-mailboxes interrupts to the actual 'sharedN' interrupt managed?
Cheers Jon
-- nvpublic
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