Messages in this thread | | | Date | Thu, 10 Oct 2013 21:54:28 +0800 | Subject | Re: [PATCH] dma: mmp_tdma: add multiple burst size support for 910-squ | From | zhangfei gao <> |
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On Wed, Oct 9, 2013 at 1:40 PM, Qiao Zhou <zhouqiao@marvell.com> wrote: > add multiple burst size support for 910-squ. > > Signed-off-by: Qiao Zhou <zhouqiao@marvell.com> > --- > drivers/dma/mmp_tdma.c | 25 ++++++++++++++++++++++++- > 1 files changed, 24 insertions(+), 1 deletions(-) > > diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c > index 38cb517..d84354b 100644 > --- a/drivers/dma/mmp_tdma.c > +++ b/drivers/dma/mmp_tdma.c > @@ -228,8 +228,31 @@ static int mmp_tdma_config_chan(struct mmp_tdma_chan *tdmac) > return -EINVAL; > } > } else if (tdmac->type == PXA910_SQU) { > - tdcr |= TDCR_BURSTSZ_SQU_32B; > tdcr |= TDCR_SSPMOD; > + > + switch (tdmac->burst_sz) { > + case 1: > + tdcr |= TDCR_BURSTSZ_SQU_1B; > + break; > + case 2: > + tdcr |= TDCR_BURSTSZ_SQU_2B; > + break; > + case 4: > + tdcr |= TDCR_BURSTSZ_SQU_4B; > + break; > + case 8: > + tdcr |= TDCR_BURSTSZ_SQU_8B; > + break; > + case 16: > + tdcr |= TDCR_BURSTSZ_SQU_16B; > + break; > + case 32: > + tdcr |= TDCR_BURSTSZ_SQU_32B; > + break; > + default: > + dev_err(tdmac->dev, "mmp_tdma: unknown burst size.\n"); > + return -EINVAL; > + }
Sorry, do I make mistake, Not find definition TDCR_BURSTSZ_SQU_16B ~ Only find #define TDCR_BURSTSZ_SQU_32B (0x7 << 6)
Thanks
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