Commit bb2bd7c7 authored Oct 20, 2020 by Peter Ujfalusi Committed by Marc Zyngier Nov 01, 2020

dt-bindings: irqchip: ti, sci-inta: Update for unmapped event handling



The new DMA architecture introduced with AM64 introduced new event types:
unampped events.

These events are mapped within INTA in contrast to other K3 devices where
the events with similar function was originating from the UDMAP or ringacc.

The ti,unmapped-event-sources should contain phandle array to the devices
in the system (typically DMA controllers) from where the unmapped events
originate.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201020073243.19255-2-peter.ujfalusi@ti.com

parent b388bdf2

Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml

+10 −0

Original line number	Diff line number	Diff line
		@@ -32,6 +32,11 @@ description: \|
		\| \| vint \| bit \| \| 0 \|.....\|63\| vintx \|
		\| +--------------+ +------------+ \|
		\| \|
		\| Unmap \|
		\| +--------------+ \|
		Unmapped events ----->\| \| umapidx \|-------------------------> Globalevents
		\| +--------------+ \|
		\| \|
		+-----------------------------------------+

		Configuration of these Intmap registers that maps global events to vint is
		@@ -70,6 +75,11 @@ properties:
		- description: \|
		"limit" specifies the limit for translation

		ti,unmapped-event-sources:
		$ref: /schemas/types.yaml#definitions/phandle-array
		description:
		Array of phandles to DMA controllers where the unmapped events originate.

		required:
		- compatible
		- reg

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