Certain devices don't work well when a transmit FIFO underrun or receive FIFO overrun occurs. Example is the SAF400x radio chip when running at high speed which leads to garbage being sent to/received from the chip. In which case, it should stall waiting for further data to be available before proceeding. This patch add option to configure the SPI controller to allow stalling (unset NOSTALL bit in CFGR1). Hieu Tran Dang (2): dt-bindings: spi: fsl-lpspi: Option to allow stalling spi: fsl-lpspi: Option to prevent FIFO under/overrun .../devicetree/bindings/spi/spi-fsl-lpspi.txt | 2 ++ drivers/spi/spi-fsl-lpspi.c | 10 +++++++++- 2 files changed, 11 insertions(+), 1 deletion(-) -- 2.17.1
