Hello Giuseppe,

On Wed, 10 May 2017 09:18:17 +0200, Thomas Petazzoni wrote:

On Wed, 10 May 2017 09:03:12 +0200, Giuseppe CAVALLARO wrote:

quoted

quoted

Please, read again my patch and the description of the problem that I
have sent. But basically, any solution that does not allow to set the
PS bit between asserting the DMA reset bit and polling for it to clear
will not work for MII PHYs.    

yes your point was clear to me, I was just wondering if we could find an 
easier way
to solve it w/o changing the API, adding  the set_ps and propagating the 
"interface"
inside the DMA reset.

Maybe this could be fixed in the glue-logic in some way. Let me know 
what do you think.  

Well, it's more up to you to tell me how you would like this be solved.
We figured out what the problem was, but I don't know well enough the
architecture of the driver to decide how the solution to this problem
should be designed. I made an initial simple proposal to show what is
needed, but I'm definitely open to suggestions.

Do you have any suggestion on how to move forward with this?

Thanks a lot,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com