Subject: [patch V2 0/6] dma: edma: Provide granular residue accounting

From: [email-masked] (Joel Fernandes)
Date: Tue, 29 Apr 2014 23:25:02 -0500

On 04/29/2014 03:46 AM, Vinod Koul wrote:
[..]
> commit 770f0f3a20188b7e17db2790803b9da925dc0b94
> Author: Thomas Gleixner <[email-masked]>
> Date:   Mon Apr 28 10:49:43 2014 +0000
> 
>     dmaengine: edma: Make reading the position of active channels work
> 
>     As Joel pointed out, edma_read_position() uses memcpy_fromio() to read
>     the parameter ram. That's not synchronized with the internal update as
>     it does a byte by byte copy. We need to do a 32bit read to get a
>     consistent value.
> 
>     Further reading destination and source is pointless. In DEV_TO_MEM
>     transfers we are only interested in the destination, in MEM_TO_DEV we
>     care about the source. In MEM_TO_MEM it really does not matter which
>     one you read.
> 
>     Simple solution: Remove the pointers, select dest/source via a bool
>     and return the read value.
> 
>     Remove the export of this function while at it. The only potential
>     user is the dmaengine and that's always builtin.
> 
>     Signed-off-by: Thomas Gleixner <[email-masked]>
> 
> You s-o-b missing in this one, also ack from Sekhar missing. Do you want to redo
> this or prefer me to cherry-pick patches adding acks and your s-o-b, since I
> already fetched your branch
> 
> Either way is fine with me...
> 

If its Ok with you, it would great if you could add my Ack and Sob.
Thanks a lot. Let me know if you'd want me to do anything else here.

Regards,
-Joel