Hi Boojin,
On 27 July 2011 11:01, Boojin Kim <boojin.kim@xxxxxxxxxxx> wrote:
> This patch makes Samsung EXYNOS4 to use DMA PL330 driver
> on DMADEVICE. The EXYNOS4 uses DMA generic APIs instead of
> SAMSUNG specific S3C-PL330 APIs.
>
> Signed-off-by: Boojin Kim <boojin.kim@xxxxxxxxxxx>
> Signed-off-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
> ---
> arch/arm/mach-exynos4/Kconfig | 2 +-
> arch/arm/mach-exynos4/clock.c | 16 ++-
> arch/arm/mach-exynos4/dma.c | 299 ++++++++++++++++++++++++++---------------
> 3 files changed, 198 insertions(+), 119 deletions(-)
>
[...]
> diff --git a/arch/arm/mach-exynos4/dma.c b/arch/arm/mach-exynos4/dma.c
> index 564bb53..d57d662 100644
[...]
> +struct dma_pl330_peri pdma0_peri[28] = {
> + {
> + .peri_id = (u8)DMACH_PCM0_RX,
> + .rqtype = DEVTOMEM,
> + }, {
The client driver specifies the direction of the transfer
(DMA_TO_DEVICE or DMA_FROM_DEVICE) when requesting for a dma channel.
So, is the rqtype parameter required in the platform data for the dma
driver?
Thanks,
Thomas.
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