mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2025-01-10 07:00:48 +00:00
5c9f8c2dbd
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>