[PATCH V2 0/7] ARM: OMAP2+: Add device-tree support for timers
Hiremath, Vaibhav
hvaibhav at ti.com
Sat Sep 29 19:33:11 EST 2012
On Sat, Sep 29, 2012 at 03:17:51, Hunter, Jon wrote:
>
> On 09/28/2012 01:51 PM, Vaibhav Hiremath wrote:
> >
> >
> > On 9/26/2012 10:23 PM, Jon Hunter wrote:
> >>
> >> On 09/20/2012 06:53 PM, Tony Lindgren wrote:
> >>> * Benoit Cousson <b-cousson at ti.com> [120919 19:24]:
> >>>> Hi Tony,
> >>>>
> >>>> I was about to take the DTS patch, but was wondering if you will pull
> >>>> the driver changes for 3.7.
> >>>
> >>> I suggest that you do a separate branch on top of Paul's hwmod series
> >>> when he posts those if that works for you?
> >>
> >> Benoit, I see that you have pulled in the DTS patch.
> >>
> >> Do you guys want me to rebase the remaining patches with Rob's change on
> >> Tony's master branch and re-submit?
> >>
> >
> > Jon,
> >
> > Sorry for delayed response, But I tried using your omap_test application
> > to validate this patch series, but it is failing for me.
> >
> > How did you test it? Are you running same test application at your end?
>
> Sorry, I now see you are using the latest test code! I was too hasty
> when I saw the first error ;-)
>
Jon, have patience ;-)
I understand, sometimes it happens un-intentionally.
> > I am debugging this issue, i just thought I should tell you this before
> > its too late.
>
> Thanks.
>
> > Below is the log -
> >
> > [root at arago /]# echo 3 > /tmp/omap-test/timer/one
> > [ 79.612223] omap_dm_timer_request_specific: Please use
> > omap_dm_timer_request_by_cap()
> > [ 79.620636] Timer 3 not available!
>
> This is expected because omap_dm_timer_request_specific() is no longer
> supported. I should remove in the omap-test/timer/one going forward.
>
> > [root at arago /]#
> > [root at arago /]# echo 3 > /tmp/omap-test/timer/all
> > [ 135.111949] Testing 48042000.timer with 24000000 Hz clock ...
> > [root at arago /]# [ 137.457389] Timer read test PASSED! No errors, 100 loops
> > [ 137.463267] Timer interrupt test PASSED!
> > [ 137.467650] Testing 48042000.timer with 32768 Hz clock ...
> > [ 139.816892] Timer read test PASSED! No errors, 100 loops
> > [ 139.830776] Timer interrupt test PASSED!
> > [ 139.835245] Testing 48044000.timer with 24000000 Hz clock ...
> > [ 142.183912] Timer read test PASSED! No errors, 100 loops
> > [ 142.189734] Timer interrupt test PASSED!
> > [ 142.194076] Testing 48044000.timer with 32768 Hz clock ...
> > [ 144.543451] Timer read test PASSED! No errors, 100 loops
> > [ 144.557334] Timer interrupt test PASSED!
> > [ 144.561806] Testing 48046000.timer with 24000000 Hz clock ...
> > [ 146.910469] Timer read test PASSED! No errors, 100 loops
> > [ 147.910493] Timer interrupt test FAILED! No interrupt occurred in 1 sec
> > [ 147.917598] Testing 48046000.timer with 32768 Hz clock ...
> > [ 150.262203] Timer read test PASSED! No errors, 100 loops
> > [ 151.262049] Timer interrupt test FAILED! No interrupt occurred in 1 sec
> > [ 151.269298] Testing 48048000.timer with 24000000 Hz clock ...
> > [ 153.613596] Timer read test PASSED! No errors, 100 loops
> > [ 154.613618] Timer interrupt test FAILED! No interrupt occurred in 1 sec
> > [ 154.620725] Testing 48048000.timer with 32768 Hz clock ...
> > [ 156.965324] Timer read test PASSED! No errors, 100 loops
> > [ 157.965176] Timer interrupt test FAILED! No interrupt occurred in 1 sec
> > [ 157.972419] Testing 4804a000.timer with 24000000 Hz clock ...
> >
> > [root at arago /]# [ 160.316753] Timer read test PASSED! No errors, 100 loops
> >
> > [root at arago /]# [ 161.316728] Timer interrupt test FAILED! No interrupt
> > occurred in 1 sec
> > [ 161.323912] Testing 4804a000.timer with 32768 Hz clock ...
> >
> > [root at arago /]# [ 163.668490] Timer read test PASSED! No errors, 100 loops
> > [ 164.668328] Timer interrupt test FAILED! No interrupt occurred in 1 sec
> > [ 164.675545] Tested 5 timers, skipped 6 timers and detected 6 errors
> > [ 164.682202] Test iteration 0 complete in 29 secs
> > [ 164.687104] Test summary: Iterations 1, Errors 6
>
> What is interesting is that it is the interrupt test that is failing for
> timers 5-7. Any chance there is a problem with the interrupt mapping? I
> checked the documentation for AM335x and I don't see anything obvious
> that is wrong with the binding unless the documentation itself is wrong.
>
> Given that the interrupts work on timers 3 and 4 it appears to be a
> interrupt configuration problem somewhere. We could adapt the test to
> see if an interrupt is pending in the timer peripheral when it fails.
> This would tell us that the timer is working but the interrupt is not
> being enabled correctly in the interrupt controller.
>
I am also surprised to see this, and as you mentioned, nothing I looks
obviously wrong to me in timer5-7.
I have to debug this further and will keep you updated.
Thanks,
Vaibhav
> Cheers
> Jon
>
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