[0/2] spi: spi-omap2-mcspi: Add DMA support for AM65x

Message

Vignesh Raghavendra Feb. 4, 2020, 12:48 p.m. UTC

This patch series adds DMA support for McSPI on AM65x.
First patch addresses a limitationn on AM65x where transfers have to be
<4K per DMA request and second patch handles possible EPROBE_DEFER when
requesting DMA channels

Vignesh Raghavendra (2):
  spi: spi-omap2-mcspi: Handle DMA size restriction on AM65x
  spi: spi-omap2-mcspi: Support probe deferral for DMA channels

 drivers/spi/spi-omap2-mcspi.c                 | 103 +++++++++++-------
 include/linux/platform_data/spi-omap2-mcspi.h |   1 +
 2 files changed, 65 insertions(+), 39 deletions(-)