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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2020-10-20 10:32:42 +0300
committerMarc Zyngier <maz@kernel.org>2020-11-01 12:00:50 +0000
commitbb2bd7c7f3d0946acc2104db31df228d10f7b598 (patch)
tree386ada05bcc0d0ada63b09f768d451656117140a /Documentation
parentb388bdf2bac7aedac9bde5ab63eaf7646f29fc00 (diff)
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
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml b/Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml
index c7cd05656a3e..cc795498488f 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml
@@ -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