On Tue, Apr 05, 2016 at 09:06:25PM +0200, Lluís Batlle i Rossell wrote: > On Tue, Apr 05, 2016 at 12:39:30PM +0200, Lluís Batlle i Rossell wrote: > > On Tue, Apr 05, 2016 at 12:03:44PM +0530, Kumar, Shobhit wrote: > > > On Thursday 31 March 2016 03:57 PM, Lluís Batlle i Rossell wrote: > > > >Hello, > > > > > > > >I saw that you did some work for LPSS PWM: > > > >https://lists.freedesktop.org/archives/intel-gfx/2016-January/085006.html > > > > Definitely I was quite blind in my initial attempts at applying the > > patches, and gave me the idea that they did not apply in any recent tree. > > I've checked that they apply and build over the released 4.5, so I will go > > testing that, maybe today. I will report. > > The screen goes black, as before. > > I attach the dmesg after applying the four patches (3 + 1) to 4.5. > PWM_LPSS=y and PWM_LPSS_PLATFORM=y > > I also attach a dmesg of a panicked kernel that actually does run in that > board, so you can see that it is actually a lpss-pwm case. I don't see any trace of pwm/lpss in dmesg, so it's normal that i915 fails to find it. I wonder if there may be a problem in the ACPI table. I have the DSDT and it clearly reports the: Name (_CID, "80860F09") // _CID: Compatible ID Name (_DDN, "Intel(R) PWM Controller #2 - 80860F09") // _DDN: DOS Device Name Which should be the lpss pwm. But somehow it is not loaded, so I guess it fails the probing. Maybe the DSDT is broken, and I should fix and recompile a new one for the pwm controller to work? I don't really know how this things work, and whether the kernel should report anything special if it were the case of a broken DSDT. Regards, Lluḉis. -- (Escriu-me xifrat si saps PGP / Write ciphered if you know PGP) PGP key D4831A8A - https://emailselfdefense.fsf.org/ _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
