On Tue, Oct 28, 2014 at 06:25:00PM +0200, Andy Shevchenko wrote: > In current shape the driver relies on both TX and RX transfers when DMA is > enabled. In case of simplex transfer the driver will stuck, since call back > function will never achieve the proper condition to finish the transfer. Applied both, thanks. Can you please also send a patch for Linus setting SPI_MASTER_MUST_RX and SPI_MASTER_MUST_TX - this is a bug which should be fixed in mainline but these seem a bit big for merge right now, those flags will cause the core to always ensure that both directions have data avoiding the issue?
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