[PATCH 00/10] patch set about the MXS-DMA
Shawn Guo
shawn.guo at linaro.org
Thu Jan 19 04:10:37 EST 2012
On Thu, Jan 19, 2012 at 02:15:57PM +0800, Huang Shijie wrote:
> This patch set does two things about the MXS-DMA:
> [1] patch 1 ~ patch 5: move the mxs dma header to a more common place.
> Beside the mx23/mx28, the APBH-DMA is also used by MX50 and MX6Q.
> So move the mxs dma header file to a more common place, and rename
> it to mxs-dma.h
>
For the sake of bitsec, these 5 patches need to be one.
> [2] patch 6 ~ patch 10: rewrite the last parameter of mxs_dma_prep_slave_sg().
For the sake of bitsec, at least patches #7 and #8 need to be one patch.
That said, if I apply the series and then check out the commit at patch
#7, you need to all mxs-dma client drivers, mxs-mmc, gpmi do not break.
> In the new GPMI version, some hardware behavior changes.
> The WAIT4END bit should be set in the middle one of the ECC READ page DMA chain.
> The DMA chain should be set like this:
>
> +-----+ +-----+ +-----+
> | cmd | ------------> | cmd | ------------------> | cmd |
> +-----+ +-----+ +-----+
> ^ ^
> | |
> | |
> set WAIT4END here too set WAIT4END here
>
> Please read the comment in patch "MXS-DMA : add more flags for MXS-DMA".
>
> Huang Shijie (10):
> MXS-DMA : move the mxs-dma.h to a more common place
> MXS-DMA : change the header
> MXS-MMC : change the DMA header file
> MTD/GPMI : change the DMA header file
> ASoc : change the DMA header file
> MXS-DMA : add more flags for MXS-DMA
> MXS-DMA : change the last parameter of mxs_dma_prep_slave_sg()
> MXS-MMC : use the new DMA flags
> MTD/GPMI : add a new field `gpmi_version`
> MTD/GPMI : change the code for new DMA interface
>
Please try to make these subject prefix consistent with the existing
ones in the tree. You can get them from 'git log' output. For example
"mxs-dma: ..." is better than "MXS-DMA : ...".
--
Regards,
Shawn
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