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From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: <nm@ti.com>, <t-kristo@ti.com>, <ssantosh@kernel.org>,
	<tglx@linutronix.de>, <jason@lakedaemon.net>, <maz@kernel.org>,
	<robh+dt@kernel.org>, <lokeshvutla@ti.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 1/2] dt-bindings: irqchip: ti, sci-inta: Update for unmapped event handling
Date: Tue, 20 Oct 2020 10:32:42 +0300	[thread overview]
Message-ID: <20201020073243.19255-2-peter.ujfalusi@ti.com> (raw)
In-Reply-To: <20201020073243.19255-1-peter.ujfalusi@ti.com>

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>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../bindings/interrupt-controller/ti,sci-inta.yaml     | 10 ++++++++++
 1 file changed, 10 insertions(+)

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
-- 
Peter

Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki


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  reply	other threads:[~2020-10-20  7:33 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-20  7:32 [PATCH v3 0/2] irqchip/ti-sci-inta: Support for unmapped events Peter Ujfalusi
2020-10-20  7:32 ` Peter Ujfalusi [this message]
2020-10-20  7:32 ` [PATCH v3 2/2] irqchip/ti-sci-inta: Add support for unmapped event handling Peter Ujfalusi
2020-11-01 12:10 ` [PATCH v3 0/2] irqchip/ti-sci-inta: Support for unmapped events Marc Zyngier

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