From: Grant Likely <grant.likely@secretlab.ca>
To: Kyoungil Kim <ki0351.kim@samsung.com>,
spi-devel-general@lists.sourceforge.net,
linux-samsung-soc@vger.kernel.org
Cc: 'Kukjin Kim' <kgene.kim@samsung.com>,
'Kyoungil Kim' <ki0351.kim@samsung.com>
Subject: Re: [PATCH] spi: Compatibility with direction which is used in samsung DMA operation
Date: Fri, 09 Mar 2012 21:10:02 -0700 [thread overview]
Message-ID: <20120310041002.5AC7F3E06B6@localhost> (raw)
In-Reply-To: <003801ccfe57$8ccff2f0$a66fd8d0$%kim@samsung.com>
On Sat, 10 Mar 2012 09:48:46 +0900, Kyoungil Kim <ki0351.kim@samsung.com> wrote:
> I found that there are two kind of direction type.
> First one is dma_data_direction defined in include/linux/dma-direction.h.
> It is used for parameter of dma_map/unmap_single in spi-s3c64xx.
> The other one is dma_transter_direction defined in include/linux/dmaengine.h.
> It is used for direction of samsung DMA operation
> (arch/arm/plat-samsung/dma-ops.c).
> This patch is just some changes to use direction defines
> which is used in samsung DMA operation.
>
> Signed-off-by: Boojin Kim <boojin.kim@samsung.com>
> Signed-off-by: Kyoungil Kim <ki0351.kim@samsung.com>
Applied, thanks.
g.
> ---
> drivers/spi/spi-s3c64xx.c | 10 +++++-----
> 1 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
> index dcf7e10..003a1bf 100644
> --- a/drivers/spi/spi-s3c64xx.c
> +++ b/drivers/spi/spi-s3c64xx.c
> @@ -239,7 +239,7 @@ static void s3c64xx_spi_dmacb(void *data)
> struct s3c64xx_spi_dma_data *dma = data;
> unsigned long flags;
>
> - if (dma->direction == DMA_FROM_DEVICE)
> + if (dma->direction == DMA_DEV_TO_MEM)
> sdd = container_of(data,
> struct s3c64xx_spi_driver_data, rx_dma);
> else
> @@ -248,7 +248,7 @@ static void s3c64xx_spi_dmacb(void *data)
>
> spin_lock_irqsave(&sdd->lock, flags);
>
> - if (dma->direction == DMA_FROM_DEVICE) {
> + if (dma->direction == DMA_DEV_TO_MEM) {
> sdd->state &= ~RXBUSY;
> if (!(sdd->state & TXBUSY))
> complete(&sdd->xfer_completion);
> @@ -267,7 +267,7 @@ static void prepare_dma(struct s3c64xx_spi_dma_data *dma,
> struct s3c64xx_spi_driver_data *sdd;
> struct samsung_dma_prep_info info;
>
> - if (dma->direction == DMA_FROM_DEVICE)
> + if (dma->direction == DMA_DEV_TO_MEM) {
> sdd = container_of((void *)dma,
> struct s3c64xx_spi_driver_data, rx_dma);
> else
> @@ -1021,9 +1021,9 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
> sdd->pdev = pdev;
> sdd->sfr_start = mem_res->start;
> sdd->tx_dma.dmach = dmatx_res->start;
> - sdd->tx_dma.direction = DMA_TO_DEVICE;
> + sdd->tx_dma.direction = DMA_MEM_TO_DEV;
> sdd->rx_dma.dmach = dmarx_res->start;
> - sdd->rx_dma.direction = DMA_FROM_DEVICE;
> + sdd->rx_dma.direction = DMA_DEV_TO_MEM;
>
> sdd->cur_bpw = 8;
>
> --
> 1.7.1
>
--
Grant Likely, B.Sc, P.Eng.
Secret Lab Technologies,Ltd.
next prev parent reply other threads:[~2012-03-10 4:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-10 0:48 [PATCH] spi: Compatibility with direction which is used in samsung DMA operation Kyoungil Kim
2012-03-10 4:10 ` Grant Likely [this message]
-- strict thread matches above, loose matches on Subject: below --
2012-02-08 6:54 Kyoungil Kim
2012-03-09 21:58 ` Grant Likely
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