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mmc: dw_mmc: fix misleading error print if failing to do DMA transfer 

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.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Shawn Lin 2016-09-02 12:14:38 +08:00 committed by Ulf Hansson
parent 3b2a067b98
commit d12d0cb1d7
1 changed files with 4 additions and 2 deletions
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6
drivers/mmc/host/dw_mmc.c
View File

@ -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;
}