Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [PATCH v5] spi: spi-imx: add DMA support | Date | Wed, 10 Sep 2014 10:17:14 +0200 |
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On Wednesday 10 September 2014 09:30:04 Robin Gong wrote: > Enable DMA support on i.mx6. The read speed can increase from 600KB/s > to 1.2MB/s on i.mx6q. You can disable or enable dma function in dts. > If not set "dma-names" in dts, spi will use PIO mode. This patch only > validate on i.mx6, not i.mx5, but encourage ones to apply this patch > on i.mx5 since they share the same IP. > > Note: > Sometime, there is a weid data in rxfifo after one full tx/rx > transfer finish by DMA on i.mx6dl, so we disable dma functhion on > i.mx6dl. > > Signed-off-by: Frank Li <Frank.Li@freescale.com> > Signed-off-by: Robin Gong <b38343@freescale.com> > >
The patch looks good to me, but you need to also update the Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt file to document the additional optional properties.
Arnd
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