dmaengine: dw-axi-dmac: Remove free slot check algorithm in dw_axi_dma_set_hw_channel

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Removed free slot check algorithm in dw_axi_dma_set_hw_channel. For 8
DMA channels, use respective handshake slot in DMA_HS_SEL APB register.

For every channel, an dedicated slot is provided in  hardware handshake
register AXIDMA_CTRL_DMA_HS_SEL_n. Peripheral source number is
programmed in respective channel slots.

Signed-off-by: Pandith N <pandith.n@intel.com>
Tested-by: Pan Kris <kris.pan@intel.com>
Link: https://lore.kernel.org/r/20210802055454.15192-2-pandith.n@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Pandith N 2021-08-02 11:24:52 +05:30 • committed by Vinod Koul

parent 5eea6c9712

commit 32286e2793

2 changed files with 21 additions and 30 deletions

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49

drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c

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2

drivers/dma/dw-axi-dmac/dw-axi-dmac.h

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