The rqtype parameter specified in platform data as part of the 'struct dma_pl330_peri' can be inferred from the direction of the transfer specified with transfer requests. So the rqtype parameter can be removed and 'struct dma_pl330_peri' is then left with only one field 'peri_id' which itself can be moved into 'struct dma_pl330_platdata' and the entire 'struct dma_pl330_peri' can be eliminated. This is first step towards adding device tree support for pl330 dma driver. With rqtype information inferred from transfer requests, it need not be included in device tree to describe each hardware dma request. This patchset is based on following tree. http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git and branch 'kgene/next/topic-dma-pl330'. This patchset has been implemented and tested only for Exynos4. If this patchset is acceptable, then pl330 driver platform data for other samsung platforms will also be modfied. Thomas Abraham (3): DMA: PL330: Infer transfer direction from transfer request instead of platform data ARM: SAMSUNG: Modify pl330 channel filter function ARM: EXYNOS4: Modify platform data for pl330 driver arch/arm/mach-exynos4/dma.c | 220 +++++++++++---------------------------- arch/arm/plat-samsung/dma-ops.c | 4 +- drivers/dma/pl330.c | 56 ++-------- include/linux/amba/pl330.h | 14 +-- 4 files changed, 75 insertions(+), 219 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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