On 09/02/2016 01:14 PM, Shawn Lin wrote:
> The original log didn't figure out that we could still
> finish this transfer by PIO mode even if failing to use
> DMA. And it should be kept for debug level instead of
> error one.
Applied on my tree. Thanks!
Best Regards,
Jaehoon Chung
>
> Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
> ---
>
> Changes in v2: None
>
> drivers/mmc/host/dw_mmc.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> index daa1c52..833b6ad 100644
> --- a/drivers/mmc/host/dw_mmc.c
> +++ b/drivers/mmc/host/dw_mmc.c
> @@ -1057,8 +1057,10 @@ static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data)
> spin_unlock_irqrestore(&host->irq_lock, irqflags);
>
> if (host->dma_ops->start(host, sg_len)) {
> - /* We can't do DMA */
> - dev_err(host->dev, "%s: failed to start DMA.\n", __func__);
> + /* We can't do DMA, try PIO for this one */
> + dev_dbg(host->dev,
> + "%s: fall back to PIO mode for current transfer\n",
> + __func__);
> return -ENODEV;
> }
>
>
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