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From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: <vkoul@kernel.org>, <robh+dt@kernel.org>
Cc: <dmaengine@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<dan.j.williams@intel.com>, <devicetree@vger.kernel.org>
Subject: [PATCH v2 1/3] dt-bindings: dmaengine: dma-common: Change dma-channel-mask to uint32-array
Date: Tue, 10 Sep 2019 14:45:57 +0300
Message-ID: <20190910114559.22810-2-peter.ujfalusi@ti.com> (raw)
In-Reply-To: <20190910114559.22810-1-peter.ujfalusi@ti.com>

Make the dma-channel-mask to be usable for controllers with more than 32
channels.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
 Documentation/devicetree/bindings/dma/dma-common.yaml | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/dma/dma-common.yaml b/Documentation/devicetree/bindings/dma/dma-common.yaml
index ed0a49a6f020..41460946be64 100644
--- a/Documentation/devicetree/bindings/dma/dma-common.yaml
+++ b/Documentation/devicetree/bindings/dma/dma-common.yaml
@@ -25,11 +25,19 @@ properties:
       Used to provide DMA controller specific information.
 
   dma-channel-mask:
-    $ref: /schemas/types.yaml#definitions/uint32
     description:
       Bitmask of available DMA channels in ascending order that are
       not reserved by firmware and are available to the
       kernel. i.e. first channel corresponds to LSB.
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32-array
+        items:
+          minItems = 1
+          maxItems = 255 # Should be enough
+          - description: Mask of channels 0-31
+          - description: Mask of channels 32-63
+          ...
+          - description: Mask of chnanels X-(X+31)
 
   dma-channels:
     $ref: /schemas/types.yaml#definitions/uint32
-- 
Peter

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


  reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-10 11:45 [PATCH v2 0/3] dmaengine: bindings/edma: dma-channel-mask to array Peter Ujfalusi
2019-09-10 11:45 ` Peter Ujfalusi [this message]
2019-09-18 13:28   ` [PATCH v2 1/3] dt-bindings: dmaengine: dma-common: Change dma-channel-mask to uint32-array Rob Herring
2019-09-18 14:04     ` Peter Ujfalusi
2019-09-18 14:21       ` Rob Herring
2019-09-19  8:42         ` Peter Ujfalusi
2019-09-10 11:45 ` [PATCH v2 2/3] dt-bindings: dma: ti-edma: Document dma-channel-mask for EDMA Peter Ujfalusi
2019-09-18 13:29   ` Rob Herring
2019-09-18 14:06     ` Peter Ujfalusi
2019-09-10 11:45 ` [PATCH v2 3/3] dmaengine: ti: edma: Add support for handling reserved channels Peter Ujfalusi

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