Thread (33 messages) read the whole thread 33 messages, 6 authors, 2020-07-17

Re: [PATCH v7 05/11] dmaengine: Introduce DMA-device device_caps callback

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: 2020-07-10 08:45:09
Also in: dmaengine, linux-mips, lkml

On Fri, Jul 10, 2020 at 01:45:44AM +0300, Serge Semin wrote:
There are DMA devices (like ours version of Synopsys DW DMAC) which have
DMA capabilities non-uniformly redistributed between the device channels.
In order to provide a way of exposing the channel-specific parameters to
the DMA engine consumers, we introduce a new DMA-device callback. In case
if provided it gets called from the dma_get_slave_caps() method and is
able to override the generic DMA-device capabilities.
In light of recent developments consider not to add 'slave' and a such words to the kernel.


-- 
With Best Regards,
Andy Shevchenko

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