On Wed, 2014-09-24 at 09:44 +0100, Mark Brown wrote: > On Thu, Sep 18, 2014 at 08:08:54PM +0300, Andy Shevchenko wrote: > > Though intel-mid-dma does not follow a new DMA workflow let's prepare SPI DW > > driver for that. > > I don't understand what this change is supposed to do - what is "a new > DMA workflow"? The client is obliged to call dma_async_issue_pending() which starts the actual transfers. Old DMA drivers do not follow this, since requirement was introduced in 2011 IIRC. Current DMA driver for spi-dw doesn't follow this, but dw_dmac does. -- Andy Shevchenko <andriy.shevchenko@xxxxxxxxx> Intel Finland Oy -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 04/10] spi: dw-mid: follow new DMAengine workflow
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- Subject: Re: [PATCH 04/10] spi: dw-mid: follow new DMAengine workflow
- From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
- Date: Wed, 24 Sep 2014 13:35:38 +0300
- In-reply-to: <20140924084453.GG4015@sirena.org.uk>
- Organization: Intel Finland Oy
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