From: Rob Herring <robherring2@gmail.com>
To: linux-kernel@vger.kernel.org, devicetree-discuss@lists.ozlabs.org
Cc: Rob Herring <rob.herring@calxeda.com>,
Vinod Koul <vinod.koul@intel.com>, Dan Williams <djbw@fb.com>,
Grant Likely <grant.likely@secretlab.ca>
Subject: [PATCH 1/2] of: dma: make #dma-cells optional
Date: Wed, 27 Feb 2013 18:57:57 -0600 [thread overview]
Message-ID: <1362013078-2213-1-git-send-email-robherring2@gmail.com> (raw)
From: Rob Herring <rob.herring@calxeda.com>
For controllers with no requests/clients (memory to memory only), the
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <djbw@fb.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
---
Documentation/devicetree/bindings/dma/dma.txt | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/dma/dma.txt b/Documentation/devicetree/bindings/dma/dma.txt
index 8f504e6..d388f06 100644
--- a/Documentation/devicetree/bindings/dma/dma.txt
+++ b/Documentation/devicetree/bindings/dma/dma.txt
@@ -8,9 +8,10 @@ controller.
* DMA controller
Required property:
-- #dma-cells: Must be at least 1. Used to provide DMA controller
- specific information. See DMA client binding below for
- more details.
+- #dma-cells: Required for controllers with requests. Optional for
+ memory to memory only DMA controllers. Must be at least
+ 1. Used to provide DMA controller specific information.
+ See DMA client binding below for more details.
Optional properties:
- dma-channels: Number of DMA channels supported by the controller.
--
1.7.10.4
next reply other threads:[~2013-02-28 0:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-28 0:57 Rob Herring [this message]
2013-02-28 0:57 ` [PATCH 2/2] dma: of: allow for non-existent #dma-cells property Rob Herring
[not found] ` <1362013078-2213-1-git-send-email-robherring2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-02-28 1:33 ` [PATCH 1/2] of: dma: make #dma-cells optional Jon Hunter
[not found] ` <512EB3FD.2000207-l0cyMroinI0@public.gmane.org>
2013-02-28 1:43 ` Jon Hunter
2013-03-07 6:34 ` Vinod Koul
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