drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c · f74b3025506046e8662ebb2026697d7755b1d6ff · Kirill Smelkov / linux

dmaengine: dw-axi-dmac: Add Intel KeemBay AxiDMA BYTE and HALFWORD registers · f74b3025

Sia Jee Heng authored Jan 25, 2021



Add support for Intel KeemBay AxiDMA BYTE and HALFWORD registers
programming.

Intel KeemBay AxiDMA supports data transfer between device to memory
and memory to device operations.

This code is needed by I2C, I3C, I2S, SPI and UART which uses FIFO
size of 8bits and 16bits to perform memory to device data transfer
operation. 0-padding functionality is provided to avoid
pre-processing of data on CPU.
Signed-off-by: Sia Jee Heng <jee.heng.sia@intel.com>
Tested-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Link: https://lore.kernel.org/r/20210125013255.25799-16-jee.heng.sia@intel.com

Signed-off-by: Vinod Koul <vkoul@kernel.org>

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