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@xxxxxxxxxx>
---
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
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