This series of patches is to add DMA Support that improves SPI Performance in PCI1xxxx. With DMA Support in 20MHz clock, the performance is improved from 6Mbps to 17Mbps. Thangaraj Samynathan (3): spi: mchp-pci1xxxx: Add support for DMA in SPI spi: mchp-pci1xxxx: DMA Read support for copying data into SPI Buf spi: mchp-pci1xxxx: DMA Write Support for copying data from SPI Buf drivers/spi/spi-pci1xxxx.c | 441 +++++++++++++++++++++++++++++++++++-- 1 file changed, 419 insertions(+), 22 deletions(-) -- 2.25.1