[v2] DMA Support for SPI in PCI1xxxx

[PATCH v2 SPI for-next 0/3] DMA Support for SPI in PCI1xxxx

Thangaraj Samynathan posted 3 patches 2 years ago

Diff against v1 v3
Download series mbox

There is a newer version of this series

drivers/spi/spi-pci1xxxx.c | 510 +++++++++++++++++++++++++++++++++++--
1 file changed, 483 insertions(+), 27 deletions(-)

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[PATCH v2 SPI for-next 0/3] DMA Support for SPI in PCI1xxxx

Posted by Thangaraj Samynathan 2 years ago

This series of patch 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.

v2:
-Added can_dma operation, so that the core can do all DMA mapping and
switch between DMA and PIO operation by itself.
-Added error messages for syslock acquire failure and DMA mask set
failures.

v1:
-Initial Submission


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 | 510 +++++++++++++++++++++++++++++++++++--
 1 file changed, 483 insertions(+), 27 deletions(-)

-- 
2.25.1