From: s.hauer@pengutronix.de (Sascha Hauer)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] mmc mxcmmc: fix falling back to PIO
Date: Thu, 25 Aug 2011 11:31:33 +0200 [thread overview]
Message-ID: <20110825093133.GA7526@pengutronix.de> (raw)
In-Reply-To: <1314263172-18657-1-git-send-email-s.hauer@pengutronix.de>
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
>
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> Cc: Chris Ball <cjb@laptop.org>
> 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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next prev parent reply other threads:[~2011-08-25 9:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-25 9:06 [PATCH] mmc mxcmmc: fix falling back to PIO Sascha Hauer
2011-08-25 9:31 ` Sascha Hauer [this message]
-- strict thread matches above, loose matches on Subject: below --
2011-11-11 15:28 Sascha Hauer
2011-11-11 16:13 ` Chris Ball
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