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From: Arnd Bergmann <arnd@arndb.de>
To: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: vinod.koul@intel.com, tony@atomide.com, linux@arm.linux.org.uk,
	grant.likely@linaro.org, dmaengine@vger.kernel.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	robh+dt@kernel.org, nm@ti.com
Subject: Re: [PATCH v3 1/7] dmaengine: of_dma: Support for DMA routers
Date: Sat, 28 Mar 2015 02:44:46 +0100	[thread overview]
Message-ID: <201503280244.46961.arnd@arndb.de> (raw)
In-Reply-To: <1427459213-14611-2-git-send-email-peter.ujfalusi@ti.com>

On Friday 27 March 2015, Peter Ujfalusi wrote:
> +Required property:
> +- dma-device:          phandle of the DMA controller. The router is modifying
> +                       the DMA requests for this controller.

This property seems rather specific to the case at hand, I would expect that
one might also see routers like this that are connected to more than one
dma-device, so maybe make it a list?

It might also be better to name this as 'dma-controllers' or 'dma-masters',
as it is not entirely obvious (without referencing the binding document)
whether a dma device refers to the slave or the master.

	Arnd

  reply	other threads:[~2015-03-28  1:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-27 12:26 [PATCH v3 0/7] dmaengine/dra7x: DMA router (crossbar support) Peter Ujfalusi
2015-03-27 12:26 ` [PATCH v3 1/7] dmaengine: of_dma: Support for DMA routers Peter Ujfalusi
2015-03-28  1:44   ` Arnd Bergmann [this message]
2015-03-31 16:48     ` Peter Ujfalusi
2015-03-27 12:26 ` [PATCH v3 2/7] Documentation: devicetree: dma: Binding documentation for TI DMA crossbar Peter Ujfalusi
2015-03-27 12:26 ` [PATCH v3 3/7] dmaengine: Add driver for TI DMA crossbar on DRA7x Peter Ujfalusi
2015-03-27 12:26 ` [PATCH v3 4/7] dmaengine: omap-dma: Use defines for dma channels and request count Peter Ujfalusi
2015-03-27 12:26 ` [PATCH v3 5/7] dmaengine: omap-dma: Take DMA request number from DT if it is available Peter Ujfalusi
2015-03-27 20:24   ` Russell King - ARM Linux
2015-03-31 14:47     ` Peter Ujfalusi
2015-03-27 12:26 ` [PATCH v3 6/7] dmaengine: omap-dma: Remove mapping between virtual channels and requests Peter Ujfalusi
2015-03-27 20:22   ` Russell King - ARM Linux
2015-03-31 15:44     ` Peter Ujfalusi
2015-03-27 12:26 ` [PATCH v3 7/7] ARM: DTS: dra7x: Integrate sDMA crossbar Peter Ujfalusi

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