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Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device

From Mark Brown <broonie@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device
Date 2017-01-26 18:10 +0100
Message-ID <t3VIC-1CL-23@gated-at.bofh.it> (permalink)
References (2 earlier) <t3sZY-wo-37@gated-at.bofh.it> <t3A1s-4Ol-13@gated-at.bofh.it> <t3V5U-1ao-13@gated-at.bofh.it> <t3Vpf-1gJ-1@gated-at.bofh.it> <t3VIC-1CL-25@gated-at.bofh.it>
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On Fri, Jan 27, 2017 at 12:52:15AM +0800, Daniel Kurtz wrote:
> On Fri, Jan 27, 2017 at 12:35 AM, Dmitry Torokhov <dtor@chromium.org> wrote:

> > Nobody doing DMA likes unaligned buffers. In fact, memory used for DMA
> > must be cacheline aligned, or you going to have trouble. What
> > component supplies unaligned buffers to SPI core for transfers?

> cros-ec-spi

That needs fixing then - I keep thinking we should add a warning to the
core for this, especially now we do DMA mapping in the core.

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[PATCH] spi: mediatek: Manually set dma_ops for spi_master device Daniel Kurtz <djkurtz@chromium.org> - 2017-01-24 14:30 +0100
  Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device Robin Murphy <robin.murphy@arm.com> - 2017-01-24 16:20 +0100
    Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device Daniel Kurtz <djkurtz@chromium.org> - 2017-01-25 11:30 +0100
      Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device Mark Brown <broonie@kernel.org> - 2017-01-25 13:40 +0100
      Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device Robin Murphy <robin.murphy@arm.com> - 2017-01-25 19:00 +0100
        Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device Daniel Kurtz <djkurtz@chromium.org> - 2017-01-26 17:30 +0100
          Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device Dmitry Torokhov <dtor@chromium.org> - 2017-01-26 17:50 +0100
            Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device Mark Brown <broonie@kernel.org> - 2017-01-26 18:10 +0100
              Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device Dmitry Torokhov <dtor@chromium.org> - 2017-01-26 18:30 +0100
                Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device Mark Brown <broonie@kernel.org> - 2017-01-27 14:40 +0100
            Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device Daniel Kurtz <djkurtz@chromium.org> - 2017-01-26 18:10 +0100
  Re: [PATCH] spi: mediatek: Manually set dma_ops for spi_master device Mark Brown <broonie@kernel.org> - 2017-01-24 16:50 +0100

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