[PATCH V6 1/2] of: Add generic device tree DMA helpers
From: Matt Porter <hidden>
Date: 2012-09-19 14:07:05
Also in:
linux-devicetree, linux-omap
On Fri, Sep 14, 2012 at 05:41:56PM -0500, Jon Hunter wrote:
quoted hunk ↗ jump to hunk
diff --git a/Documentation/devicetree/bindings/dma/dma.txt b/Documentation/devicetree/bindings/dma/dma.txt new file mode 100644 index 0000000..a4f59a5 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/dma.txt@@ -0,0 +1,81 @@ +* Generic DMA Controller and DMA request bindings + +Generic binding to provide a way for a driver using DMA Engine to retrieve the +DMA request or channel information that goes from a hardware device to a DMA +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. + +Optional properties: +- #dma-channels: Number of DMA channels supported by the controller. +- #dma-requests: Number of DMA requests signals supported by the + controller.
Shouldn't these two optional properties drop the prefix #? By convention adopted from the various original OF/ePAPR/etc specs, the only properties I would expect to see with this prefix are the "*-cells" cell sizes. A quick search indicates this is the case throughout all the current bindings. -Matt