Re: [PATCH 1/8] dt-bindings: tegra186-hsp: Add shared interrupts

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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@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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