Hi, Vignesh R <vigneshr@xxxxxx> writes: > On Wednesday 28 June 2017 04:00 PM, Tony Lindgren wrote: >> Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> [170628 01:32]: >>> Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> writes: >>>> On Tue, Jun 27, 2017 at 02:28:56PM -0400, Carlos Hernandez wrote: >>>>> Still seeing AM57xx/DRA72/DRA7x usb-related boot failures on linux-next... >>>> >>>> Is this a regression? If so, any specific commit that caused it? >>> >>> I did ask for a bisection last time but nobody from TI replied ;-) >>> >>> https://marc.info/?i=87h8zi4gmx.fsf@xxxxxxxxxxxxxxx >>> >>> Can't really help without bisection logs :-) >> >> Seems this warning got add with 04c848d39879 ("genirq: Warn when >> IRQ_NOAUTOEN is used with shared interrupts"). The fix is to get >> rid of IRQ_NOAUTOEN and enable_irq for a shared interrupt. Hard >> to say as the warning line does not match the version of next I >> have so this should be verified. >> > > There seems to be two different problems here. > One is what Tony is pointing to above that throws a first warn dump > during dwc3_omap_probe(). > > Second one is the imprecise external abort that happens later: > [ 24.809939] Unhandled fault: imprecise external abort (0x1406) at > 0x00000000 > > Bisecting the second issue lead to the first bad commit as: > commit f54edb539c1167e7a96073848d0afad100df4580 > Author: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> > Date: Mon Jun 5 17:03:18 2017 +0300 > > usb: dwc3: core: initialize ULPI before trying to get the PHY > > If don't reorder initialization like this, we will never be able to > get a reference to ULPI PHYs. > > Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> > > > > Reverting above commit from -next seems to help. reverting will break other things. Seems like we should move pm_runtime_* operations a little earlier to ensure clocks are enabled early enough. -- balbi -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
