This series fixes some bugs I found while running spi-loopback-test with spi-s3c64xx. The first problem (which I actually noticed while trying to fix the second problem with transfers >64KiB) seems to be a generic issue which affects several drivers so I fixed it in the core. The series has been tested on ARTPEC-8, which has a version of the IP similar to Exynos 7 and with 64 byte FIFOs (compatible with "tesla,fsd-spi"). Cc: alim.akhtar@xxxxxxxxxxx Cc: linux-spi@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: linux-samsung-soc@xxxxxxxxxxxxxxx Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Vincent Whitchurch (4): spi: spi-loopback-test: Add test to trigger DMA/PIO mixing spi: Save current RX and TX DMA devices spi: Fix cache corruption due to DMA/PIO overlap spi: s3c64xx: Fix large transfers with DMA drivers/spi/spi-loopback-test.c | 27 +++++++ drivers/spi/spi-s3c64xx.c | 10 +++ drivers/spi/spi.c | 126 +++++++++++++++++++++++--------- include/linux/spi/spi.h | 4 + 4 files changed, 131 insertions(+), 36 deletions(-) -- 2.34.1
