On Fri, Oct 19, 2012 at 16:45:58, Porter, Matt wrote:

On Fri, Oct 19, 2012 at 10:26:20AM +0000, Bedia, Vaibhav wrote:

[...]

quoted

I didn't see all the patches that you posted on edma-dmaengine-v3
but I do seem them on edma-dmaengine-am33xx-v3 branch.

I see I referenced the wrong branch in the cover letter. Thanks for
testing and noticing this. Sorry to make you hunt for the correct
branch in that repo. ;) 

No problem.

https://github.com/ohporter/linux/tree/edma-dmaengine-am33xx-v3
is indeed the correct branch for those wanting to pull this in or
grab some of the not-to-be-merged drivers I used for testing.

quoted

I added a couple of patches to enable earlyprintk and build the DTB
appended kernel image uImage-dtb.am335x-evm

Here's what i see

[...]

<snip>

quoted

[    0.175354] edma: probe of 49000000.edma failed with error -16

I missed an uninitialized pdata case in the bug fixes mentioned in
the changelog and the folks previously failing the same way didn't
hit the case I suspect you are hitting. Can you try this and let me
know how it works?

That doesn't help :(

Looking at the original crash log, I suspect something is not correct
with the irq portion, probably in the DT or the driver. 

"genirq: Flags mismatch irq 28. 00000000 (edma) vs. 00000000 (edma)"

The warning below that is coming due to fail case in edma_probe not tracking
the request_irq status properly and but IMO that's a separate issue.

BTW, I am trying this on the EVM.

Regards,
Vaibhav