On 3/18/2015 8:45 AM, Kaukab, Yousaf wrote: > > >> -----Original Message----- >> From: John Youn [mailto:John.Youn@xxxxxxxxxxxx] >> Sent: Wednesday, March 18, 2015 3:33 AM >> To: Kaukab, Yousaf; linux-usb@xxxxxxxxxxxxxxx; balbi@xxxxxx; >> john.youn@xxxxxxxxxxxx >> Cc: Herrero, Gregory; r.baldyga@xxxxxxxxxxx; >> dinguyen@xxxxxxxxxxxxxxxxxxxxx; zhangfei.gao@xxxxxxxxxx >> Subject: Re: [PATCH v1 00/20] usb: third series of updates for dwc2 driver >> >> On 3/17/2015 2:54 AM, Mian Yousaf Kaukab wrote: >>> Hi, >>> This patchset consists of some bug fixes and feature enhancements for >>> the dwc2 driver. All the patches are verified on dwc2 v3.0a with >>> dedicated fifos. Main focus of testing was with dma enabled. Although >>> basic testing without dma was also done. >>> >>> This is based on testing/next branch in Felipe's git. >>> >>> Thank you, >>> >>> Best regards, >>> Yousaf >>> >> >> Hi Yousaf, >> >> Patch 15 and 16 introduce regressions in two systems that I tested with. > > :( sorry for that. I will try to fix this asap. > >> >> After patch 15, the host fails to work at all. > > My understanding is that functionality can break within the patchset but it should build at any point. If that's not correct, is merging patch 15 and 16 OK for you? > Ok that's fine. Just thought I'd point out where the breakage started. >> >> After patch 16, the host works but the device fails enumeration whenever >> switching from an A to B cable, going from host to peripheral. After this fails, if >> you unplug and replug the B cable it will enumerate. But whenever you switch >> from A to B it always fails. >> >> Tested on a Synopsys (2.94a) and Altera (2.93a) system. >> >> I don't have any logs right now but I can get those tomorrow if you need them. > > It will be very helpful if you can provide log after CONFUG_USB_DWC2_DEBUG enabled and also function trace of dwc2 driver. > Logs attached. First is device connection after driver load. Second is after role switch. Seems to fail both times with similar error. Relevant snippet: [ 77.814073] dwc2 dwc2.1.auto: gintsts=44008020 gintmsk=d08c3cd4 [ 77.814079] dwc2 dwc2.1.auto: ++Session Request Interrupt++ [ 77.814091] dwc2 dwc2.1.auto: s3c_hsotg_irq: 04008020 00000000 (d08c3cd4) retry 8 [ 77.817097] dwc2 dwc2.1.auto: s3c_hsotg_irq: 04008420 00000400 (d08c3cd4) retry 8 [ 77.817102] dwc2 dwc2.1.auto: GINTSTS_ErlySusp [ 77.820189] dwc2 dwc2.1.auto: gintsts=04008820 gintmsk=d08c3cd4 [ 77.820194] dwc2 dwc2.1.auto: USB SUSPEND [ 77.820202] dwc2 dwc2.1.auto: DSTS=0x3 [ 77.820204] dwc2 dwc2.1.auto: DSTS.Suspend Status=1 HWCFG4.Power Optimize=0 [ 77.820213] dwc2 dwc2.1.auto: s3c_hsotg_irq: 04008020 00000000 (d08c3cd4) retry 8 [ 78.074297] dwc2 dwc2.1.auto: s3c_hsotg_irq: 04009020 00001000 (d08c3cd4) retry 8 [ 78.074305] dwc2 dwc2.1.auto: s3c_hsotg_irq: USBRst [ 78.074310] dwc2 dwc2.1.auto: GNPTXSTS=00040400 [ 78.074314] dwc2 dwc2.1.auto: complete: ep ffff8800d50ce618 ep0, req ffff8800d524ae80, -104 => ffffffffa042be00 [ 78.074317] dwc2 dwc2.1.auto: s3c_hsotg_complete_setup: failed -104 [ 78.074326] dwc2 dwc2.1.auto: FIFOs reset, timeout at 100 [ 78.074343] dwc2 dwc2.1.auto: EP0: DIEPCTL0=0x00008000, DOEPCTL0=0x80008000 [ 78.074347] dwc2 dwc2.1.auto: gsintmsk now 0xd08c3cc4 [ 78.074351] dwc2 dwc2.1.auto: gsintmsk now 0xd08c3cd4 [ 78.074361] dwc2 dwc2.1.auto: DCTL=0x00000000 [ 78.074362] dwc2 dwc2.1.auto: s3c_hsotg_enqueue_setup: queueing setup request [ 78.074363] dwc2 dwc2.1.auto: ep0: req ffff8800d524ae80: 8@ffff8801199df798, noi=0, zero=0, snok=0 [ 78.074364] dwc2 dwc2.1.auto: s3c_hsotg_ep_queue: don't submit request while suspended [ 78.074365] dwc2 dwc2.1.auto: s3c_hsotg_enqueue_setup: failed queue (-11) [ 78.074372] dwc2 dwc2.1.auto: EP0: DIEPCTL0=0x00008000, DOEPCTL0=0x80008000 [ 78.085364] dwc2 dwc2.1.auto: s3c_hsotg_irq: 04002020 00002000 (d08c3cd4) retry 8 [ 78.085372] dwc2 dwc2.1.auto: EnumDone (DSTS=0x00000000) [ 78.085375] dwc2 dwc2.1.auto: new device is high-speed [ 78.085415] dwc2 dwc2.1.auto: s3c_hsotg_enqueue_setup: queueing setup request [ 78.085416] dwc2 dwc2.1.auto: ep0: req ffff8800d524ae80: 8@ffff8801199df798, noi=0, zero=0, snok=0 [ 78.085417] dwc2 dwc2.1.auto: s3c_hsotg_ep_queue: don't submit request while suspended [ 78.085418] dwc2 dwc2.1.auto: s3c_hsotg_enqueue_setup: failed queue (-11) [ 78.085424] dwc2 dwc2.1.auto: EP0: DIEPCTL0=0x00008000, DOEPCTL0=0x80008000 John
<<attachment: traces.zip>>
