[PATCH v2 1/7] mmc: mxs-mmc: add mmc host driver for i.MX23/28

Shawn Guo shawn.guo at freescale.com
Tue Feb 15 17:39:42 EST 2011


Hi Wolfram,

On Mon, Feb 14, 2011 at 05:59:58PM +0100, Wolfram Sang wrote:
> On Mon, Feb 14, 2011 at 10:32:20AM +0800, Shawn Guo wrote:
> > This adds the mmc host driver for Freescale MXS-based SoC i.MX23/28.
> > The driver calls into mxs-dma via generic dmaengine api for both pio
> > and data transfer.
> > 
> > Signed-off-by: Shawn Guo <shawn.guo at freescale.com>
> 
> While trying, I got this lockdep-warning and BUG. It might be that my setup is
> wrong, causing all these timeouts. But they probably are meant to be handled
> more gracefully? I can continue testing tomorrow, maybe this report already
> helps identifying a problem?
> 
Ah, yes.  I can also see the problem here after turning on
DEBUG_SPINLOCK.  I really should always turn it on in daily
development.

Thanks for catching.  I will fix it in v3.

Regards,
Shawn




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