Commit 048177ce3b3962852fd34a7e04938959271c7e70 (spi: spi-davinci: convert to DMA engine API) introduced a regression: dma_map_single() is called with direction DMA_FROM_DEVICE for rx and for tx.
Signed-off-by: Christian Eggers <[email protected]> Cc: [email protected] # v3.7.x+ Acked-by: Matt Porter <[email protected]> --- --- drivers/spi/spi-davinci.c.orig 2013-04-18 20:54:02.728719412 +0200 +++ drivers/spi/spi-davinci.c 2013-04-18 20:54:51.900623956 +0200 @@ -608,7 +608,7 @@ static int davinci_spi_bufs(struct spi_d else buf = (void *)t->tx_buf; t->tx_dma = dma_map_single(&spi->dev, buf, - t->len, DMA_FROM_DEVICE); + t->len, DMA_TO_DEVICE); if (!t->tx_dma) { ret = -EFAULT; goto err_tx_map; ------------------------------------------------------------------------------ How ServiceNow helps IT people transform IT departments: 1. A cloud service to automate IT design, transition and operations 2. Dashboards that offer high-level views of enterprise services 3. A single system of record for all IT processes http://p.sf.net/sfu/servicenow-d2d-j _______________________________________________ spi-devel-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/spi-devel-general
