[PATCH] mmc mxcmmc: fix falling back to PIO
From: s.hauer@pengutronix.de (Sascha Hauer)
Date: 2011-08-25 09:31:33
Also in:
linux-mmc
On Thu, Aug 25, 2011 at 11:06:12AM +0200, Sascha Hauer wrote:
When we can't configure the dma channel we want to fall back to PIO. We do this by setting host->do_dma to zero. This does not work as do_dma is used to see whether dma can be used for the current transfer. Instead, we have to set host->dma to NULL.
Sorry, forget this patch. We have to set host->do_dma to 0 also. Will send an updated patch. Sascha
quoted hunk ↗ jump to hunk
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: Chris Ball <redacted> Cc: linux-mmc at vger.kernel.org --- drivers/mmc/host/mxcmmc.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c index 14aa213..b050b2a 100644 --- a/drivers/mmc/host/mxcmmc.c +++ b/drivers/mmc/host/mxcmmc.c@@ -730,7 +730,7 @@ static void mxcmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) dev_err(mmc_dev(host->mmc), "failed to config DMA channel. Falling back to PIO\n"); dma_release_channel(host->dma); - host->do_dma = 0; + host->dma = NULL; } }-- 1.7.5.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel at lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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