linux-kernel - Re: [PATCH v2] dmaengine: bcm2835: Add slave dma support

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Message-Id: <CF363C6E-B277-4CF0-BB99-19A5C2F1A9CD@martin.sperl.org>
Date:	Mon, 4 May 2015 08:59:09 +0200
From:	Martin Sperl <kernel@...tin.sperl.org>
To:	Noralf Trønnes <noralf@...nnes.org>
Cc:	dmaengine@...r.kernel.org, vinod.koul@...el.com,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	jonathan@...pberrypi.org,
	linux-rpi-kernel <linux-rpi-kernel@...ts.infradead.org>,
	dan.j.williams@...el.com, linux-spi <linux-spi@...r.kernel.org>,
	Mark Brown <broonie@...nel.org>
Subject: Re: [PATCH v2] dmaengine: bcm2835: Add slave dma support

I did tests with the (almost) finished dma-support of spi-bcm2835
against a TFT device and it work fine there.

Upstreaming this spi-bcm2835 patch obviously requires that the DMA
support is in the dma-engine driver first...

Please also see prior note about unnecessary interrupts when none
are requested for possible improvements.

> On 18.04.2015, at 13:06, Noralf Trønnes <noralf@...nnes.org> wrote:
> 
> Add slave transfer capability to BCM2835 dmaengine driver.
> This patch is pulled from the bcm2708-dmaengine driver in the
> Raspberry Pi repo. The work was done by Gellert Weisz.
> 
> Tested using the bcm2835-mmc driver from the same repo.
> 
> Signed-off-by: Noralf Trønnes <noralf@...nnes.org>

Tested-by: Martin Sperl <kernel@...tin.sperl.org>

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