| Message ID | 1315295914-6862-1-git-send-email-tomoya-linux@dsn.okisemi.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c index 540c290..1b98b7e 100644 --- a/drivers/spi/spi-topcliff-pch.c +++ b/drivers/spi/spi-topcliff-pch.c @@ -839,6 +839,11 @@ static void pch_spi_start_transfer(struct pch_spi_data *data) dma_sync_sg_for_cpu(&data->master->dev, dma->sg_rx_p, dma->nent, DMA_FROM_DEVICE); + + dma_sync_sg_for_cpu(&data->master->dev, dma->sg_tx_p, dma->nent, + DMA_FROM_DEVICE); + memset(data->dma.tx_buf_virt, 0, PAGE_SIZE); + async_tx_ack(dma->desc_rx); async_tx_ack(dma->desc_tx); kfree(dma->sg_tx_p);
Currently, in case of reading date from SPI flash, command is sent twice. The cause is that tx-memory clear processing is missing . This patch adds the tx-momory clear processing. Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> --- drivers/spi/spi-topcliff-pch.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)