On Mon, Mar 02, 2015 at 08:15:59PM +0200, Andy Shevchenko wrote: > The logic of DMA completion is broken now since test_and_clear_bit() never > returns the other bit is set. It means condition are always false and we have > spi_finalize_current_transfer() called per each DMA completion which is wrong. > > The patch fixes logic by clearing BUSY bit first and then check for the other > one. > > Fixes: 30c8eb52cc4a (spi: dw-mid: split rx and tx callbacks when DMA) The commit this is fixing is in v3.19 so this should go to stable but I can't apply this against my fix/dw branch. Can you generate a version that can be applied there please? We'll need to work out the merge issues with the current code I gues...
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