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authorJonathan McDowell <noodles@earth.li>2020-11-14 14:02:33 +0000
committerVinod Koul <vkoul@kernel.org>2020-11-24 21:41:15 +0530
commit5c9f8c2dbdbe53818bcde6aa6695e1331e5f841f (patch)
treed5e4d2fd3ac8e546e237fa52e7d0991b086ea190 /include/linux/dmaengine.h
parentf74faa0ca3d56df7d135602bca80f6e39be9f4ad (diff)
dmaengine: qcom: Add ADM driver
Add the DMA engine driver for the QCOM Application Data Mover (ADM) DMA controller found in the MSM8x60 and IPQ/APQ8064 platforms. The ADM supports both memory to memory transactions and memory to/from peripheral device transactions. The controller also provides flow control capabilities for transactions to/from peripheral devices. The initial release of this driver supports slave transfers to/from peripherals and also incorporates CRCI (client rate control interface) flow control. The hardware only supports a 32 bit physical address, so specifying !PHYS_ADDR_T_64BIT gives maximum COMPILE_TEST coverage without having to spend effort on kludging things in the code that will never actually be needed on real hardware. Signed-off-by: Andy Gross <agross@codeaurora.org> Signed-off-by: Thomas Pedersen <twp@codeaurora.org> Signed-off-by: Jonathan McDowell <noodles@earth.li> Link: https://lore.kernel.org/r/20201114140233.GM32650@earth.li Signed-off-by: Vinod Koul <vkoul@kernel.org>
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