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Re: [PATCH 4/4] dmaengine: edma: Add support for DMA filter mapping to slave devices

From Arnd Bergmann <arnd@arndb.de>
Newsgroups linux.kernel
Subject Re: [PATCH 4/4] dmaengine: edma: Add support for DMA filter mapping to slave devices
Date 2015-12-03 16:40 +0100
Message-ID <qBE9b-6XG-1@gated-at.bofh.it> (permalink)
References <qBDd8-6lI-9@gated-at.bofh.it> <qBDd8-6lI-23@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thursday 03 December 2015 16:33:12 Peter Ujfalusi wrote:
> diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
> index 0675e268d577..46b305ea0d21 100644
> --- a/drivers/dma/edma.c
> +++ b/drivers/dma/edma.c
> @@ -2297,6 +2297,12 @@ static int edma_probe(struct platform_device *pdev)
>                 edma_set_chmap(&ecc->slave_chans[i], ecc->dummy_slot);
>         }
>  
> +       if (info->slave_map) {
> +               ecc->dma_slave.filter_map.map = info->slave_map;
> +               ecc->dma_slave.filter_map.mapcnt = info->slavecnt;
> +               ecc->dma_slave.filter_map.filter_fn = edma_filter_fn;
> +       }
> +
> 

Just a minor comment here: I think all three assignments can be done
unconditionally. As I mentioned before, I'd also remove 'struct dma_filter'
and put the three members in struct dma_device directly. In fact, the
filter function can go with the other function pointers for consistency.

	Arnd
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Thread

[PATCH 0/4] dmaengine: New 'universal' API for requesting channel Peter Ujfalusi <peter.ujfalusi@ti.com> - 2015-12-03 15:40 +0100
  [PATCH 4/4] dmaengine: edma: Add support for DMA filter mapping to slave devices Peter Ujfalusi <peter.ujfalusi@ti.com> - 2015-12-03 15:40 +0100
    Re: [PATCH 4/4] dmaengine: edma: Add support for DMA filter mapping to slave devices Arnd Bergmann <arnd@arndb.de> - 2015-12-03 16:40 +0100
      Re: [PATCH 4/4] dmaengine: edma: Add support for DMA filter mapping  to slave devices Peter Ujfalusi <peter.ujfalusi@ti.com> - 2015-12-03 16:50 +0100
        Re: [PATCH 4/4] dmaengine: edma: Add support for DMA filter mapping  to slave devices Peter Ujfalusi <peter.ujfalusi@ti.com> - 2015-12-08 14:20 +0100
  [PATCH 3/4] dmaengine: core: Introduce new, universal API to request a channel Peter Ujfalusi <peter.ujfalusi@ti.com> - 2015-12-03 15:40 +0100
    Re: [PATCH 3/4] dmaengine: core: Introduce new, universal API to request a channel Arnd Bergmann <arnd@arndb.de> - 2015-12-03 16:40 +0100
      Re: [PATCH 3/4] dmaengine: core: Introduce new, universal API to request a channel Arnd Bergmann <arnd@arndb.de> - 2015-12-03 16:50 +0100
      Re: [PATCH 3/4] dmaengine: core: Introduce new, universal API to  request a channel Peter Ujfalusi <peter.ujfalusi@ti.com> - 2015-12-03 16:50 +0100
    Re: [PATCH 3/4] dmaengine: core: Introduce new, universal API to  request a channel Andy Shevchenko <andy.shevchenko@gmail.com> - 2015-12-03 17:40 +0100
  Re: [PATCH 0/4] dmaengine: New 'universal' API for requesting channel Andy Shevchenko <andy.shevchenko@gmail.com> - 2015-12-03 17:40 +0100

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