Commit d12d0cb1 authored Sep 02, 2016 by Shawn Lin Committed by Ulf Hansson Sep 26, 2016

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>

parent 3b2a067b

drivers/mmc/host/dw_mmc.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -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;
		}