From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
To: Joel A Fernandes <joelagnel-l0cyMroinI0@public.gmane.org>
Cc: Linux DaVinci Kernel List
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Subject: Re: [PATCH v10 5/8] dmaengine: edma: Add TI EDMA device tree binding
Date: Mon, 17 Jun 2013 13:12:32 +0200 [thread overview]
Message-ID: <3940138.jZFEtfGGLz@wuerfel> (raw)
In-Reply-To: <1371263570-9323-5-git-send-email-joelagnel-l0cyMroinI0@public.gmane.org>
On Friday 14 June 2013 21:32:47 Joel A Fernandes wrote:
>
> diff --git a/Documentation/devicetree/bindings/dma/ti-edma.txt b/Documentation/devicetree/bindings/dma/ti-edma.txt
> new file mode 100644
> index 0000000..ada0018
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/dma/ti-edma.txt
> @@ -0,0 +1,26 @@
> +TI EDMA
> +
> +Required properties:
> +- compatible : "ti,edma3"
> +- ti,hwmods: Name of the hwmods associated to the EDMA
> +- ti,edma-regions: Number of regions
> +- ti,edma-slots: Number of slots
> +
> +Optional properties:
> +- ti,edma-xbar-event-map: Crossbar event to channel map
You need to list #dma-cells as required here, and which values are accepted by
the driver (I suppose only <1>). You should also explain the format of the
dma-specifier for a slave here for each possible value of #dma-cells.
For each of the standard properties (reg, interrupts, dma-channels), list
whether they are optional or required. Since the example has three interrupts,
you should probably list how many interrupts need to be specified (minimum
and maximum if the number is variable) and in what order to expect them.
Arnd
next prev parent reply other threads:[~2013-06-17 11:12 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-15 2:32 [PATCH v10 1/8] ARM: edma: Add AM33XX support to the private EDMA API Joel A Fernandes
2013-06-15 2:32 ` [PATCH v10 3/8] ARM: dts: add AM33XX EDMA support Joel A Fernandes
[not found] ` <1371263570-9323-1-git-send-email-joelagnel-l0cyMroinI0@public.gmane.org>
2013-06-15 2:32 ` [PATCH v10 2/8] ARM: edma: Add AM33XX EDMA crossbar event mux support Joel A Fernandes
2013-06-15 2:32 ` [PATCH v10 4/8] dmaengine: edma: enable build for AM33XX Joel A Fernandes
2013-06-15 2:32 ` [PATCH v10 5/8] dmaengine: edma: Add TI EDMA device tree binding Joel A Fernandes
[not found] ` <1371263570-9323-5-git-send-email-joelagnel-l0cyMroinI0@public.gmane.org>
2013-06-17 11:01 ` Sekhar Nori
2013-06-17 15:05 ` Fernandes, Joel A
2013-06-17 11:12 ` Arnd Bergmann [this message]
2013-06-17 15:40 ` Fernandes, Joel A
[not found] ` <083BC63EECB6FD41B8E81CF7FD87CC0F2E4E9395-YmePFLaaepqIQmiDNMet8wC/G2K4zDHf@public.gmane.org>
2013-06-17 16:19 ` Arnd Bergmann
[not found] ` <201306171819.57900.arnd-r2nGTMty4D4@public.gmane.org>
2013-06-17 16:25 ` Fernandes, Joel A
2013-06-18 4:40 ` Sekhar Nori
2013-06-15 2:32 ` [PATCH v10 6/8] spi: omap2-mcspi: add generic DMA request support to the DT binding Joel A Fernandes
2013-06-15 2:32 ` [PATCH v10 7/8] spi: omap2-mcspi: convert to dma_request_slave_channel_compat() Joel A Fernandes
2013-06-15 2:32 ` [PATCH v10 8/8] ARM: dts: add AM33XX SPI DMA support Joel A Fernandes
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