It is recommended that the SPFI controller be enabled (i.e. setting SPFI_EN in SPFI_CONTROL) before TX DMA begins.
Signed-off-by: Andrew Bresticker <[email protected]> --- drivers/spi/spi-img-spfi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c index 43781c9..e7e79e6 100644 --- a/drivers/spi/spi-img-spfi.c +++ b/drivers/spi/spi-img-spfi.c @@ -390,14 +390,14 @@ static int img_spfi_start_dma(struct spi_master *master, dma_async_issue_pending(spfi->rx_ch); } + spfi_start(spfi); + if (xfer->tx_buf) { spfi->tx_dma_busy = true; dmaengine_submit(txdesc); dma_async_issue_pending(spfi->tx_ch); } - spfi_start(spfi); - return 1; stop_dma: -- 2.2.0.rc0.207.ga3a616c -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
