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authorYoulin Wang <wwx575822@notesmail.huawei.com>2019-01-24 12:24:18 -0800
committerVinod Koul <vkoul@kernel.org>2019-02-04 14:30:40 +0530
commitd4bdc39f5bd00a2fbeb0fbd29c9cb3b595df38a2 (patch)
tree1afcae7e6d80cb771a3ac53aa02966e93a566d08 /Documentation/iio
parente2d896c08ca3136f1f4c0cd225cdf09f87fa528b (diff)
dmaengine: k3dma: Upgrade k3dma driver to support hisi_asp_dma hardware
On the hi3660 hardware there are two (at least) DMA controllers, the DMA-P (Peripheral DMA) and the DMA-A (Audio DMA). The two blocks are similar, but have some slight differences. This resulted in the vendor implementing two separate drivers, which after review, they have been able to condense and re-use the existing k3dma driver. Thus, this patch adds support for the new "hisi-pcm-asp-dma-1.0" compatible string in the binding. One difference with the DMA-A controller, is that it does not need to initialize a clock. So we skip this by adding and using soc data flags. After above this driver will support both k3 and hisi_asp dma hardware. Cc: Dan Williams <dan.j.williams@intel.com> Cc: Vinod Koul <vkoul@kernel.org> Cc: Zhuangluan Su <suzhuangluan@hisilicon.com> Cc: Ryan Grachek <ryan@edited.us> Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Cc: dmaengine@vger.kernel.org Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Youlin Wang <wwx575822@notesmail.huawei.com> Signed-off-by: Tanglei Han <hantanglei@huawei.com> [jstultz: Reworked to use of_match_data, commit msg improvements] Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
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