First patch, adds can_dma() like interface for spi_flash_read() interface, this will enable controller drivers to selectively use DMA based on buffer type, alignment, size or other limitations. Second patch implements bounce buffer support for ti-qspi driver to handle buffers that are not DMA'able, like vmalloc'd buffers that belong to LPAE region. This is required to work with UBIFS
Vignesh R (2): spi: Add can_dma like interface for spi_flash_read spi: spi-ti-qspi: Use bounce buffer if read buffer is not DMA'ble drivers/spi/spi-ti-qspi.c | 64 +++++++++++++++++++++++++++++++++++++++++------ drivers/spi/spi.c | 2 +- include/linux/spi/spi.h | 4 +++ 3 files changed, 62 insertions(+), 8 deletions(-) -- 2.11.0
