Re: [PATCH 1/2] mmc: mxcmmc: fix race condition when dma finish a data transfer

From: Sascha Hauer
Date: Wed Oct 08 2014 - 02:49:14 EST

On Tue, Sep 30, 2014 at 04:59:37PM +0200, Matteo Facchinetti wrote:
> From: Matteo Facchinetti <matteo.facchinetti@xxxxxxxxxxxx>
> In accordance with the other drivers that using the dma engine,
> fix it, leaving *only* to dma driver the complete control to
> ending the read operation.
> Removing STATUS_READ_OP_DONE event activation, has as effect
> to force mxcmci driver to handle the finish data transfer only
> by mxcmci dma callback.
> Signed-off-by: Matteo Facchinetti <matteo.facchinetti@xxxxxxxxxxxx>

I can't test this currently, but it looks sane to me and I assume you
invested quite some time to make sure the patch behaves correctly.

Acked-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>


Pengutronix e.K. | |
Industrial Linux Solutions | |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at