Re: PM branch rebased to 2.6.29

[Peter Barada <peterb@logicpd.com>]

On Mon, 2009-03-30 at 10:57 -0700, Kevin Hilman wrote:
> Russ Dill <russ.dill@gmail.com> writes:
> 
> > On Mon, Mar 30, 2009 at 3:08 AM, Premi, Sanjeev <premi@ti.com> wrote:
> [...]
> 
> >> I had found that two drivers that could prevent clocks_off are
> >> USB and DSS because of the way they use clk_enable().
> >>
> >> Can you try building without theses drivers just for verification?
> >>
> >
> > Building without dss makes things worse:
> >
> > Powerdomain (dss_pwrdm) didn't enter target state 0
> >
> > Maybe by looking at what the dss driver is doing I can get core and
> > per to turn off.
> 
> Peter,
> 
> Have you tried with the debug patch I sent?  If you can test with that
> patch, and send the output, I can tell you what is preventing you from
> hitting RET.

No, not yet.  After comments by Kevin and others regarding my DPLL
setting being wrong from u-boot, I'm currently trying to bring up u-boot
from the Beagle on the LV SOM.  Then I can get the timings for the SDRC
correct, and then work on getting the lates PM rebase (2.6.29) to boot.
When I tried it with my current u-boot (based on 1.1.4 labrador), it
would sporadically hang in rtc_hctosys and other functions that tried to
talk to the twl4030 via i2c...

I'm running into problems with u-boot (cloned the Beagle config) where
I2C to setup power domains fails after the first write (bus gets stuck
busy).

> FWIW, the latest HEAD of the PM branch has that debug patch included.
> 
> After doing the suspend/resume, just
> 
> # cat /debug/pm_debug/registers/1
> 
> and attach the output.
> 
> Kevin
> 
-- 
Peter Barada <peterb@logicpd.com>