Hi Dinh, On 12/14/2021 12:40 AM, Dinh Nguyen wrote: > > > On 12/13/21 10:13 AM, Dinh Nguyen wrote: >> Hi Minas, >> >> Thanks for replying! >> >> On 12/13/21 3:47 AM, Minas Harutyunyan wrote: >>> Hi Dinh, >>> >>> On 12/9/2021 1:44 AM, Dinh Nguyen wrote: >>>> Hi Arthur, >>>> >>>> The usb driver is getting this error: >>>> >>>> [ 1.539856] Hardware name: SoCFPGA Agilex SoCDK (DT) >>>> [ 1.544799] Call trace: >>>> [ 1.547233] dump_backtrace+0x0/0x1c0 >>>> [ 1.550897] show_stack+0x18/0x68 >>>> [ 1.554202] dump_stack+0xd8/0x134 >>>> [ 1.557597] __report_bad_irq+0x38/0xf0 >>>> [ 1.561423] note_interrupt+0x31c/0x3e8 >>>> [ 1.565244] handle_irq_event_percpu+0x60/0x90 >>>> [ 1.569671] handle_irq_event+0x48/0xe0 >>>> [ 1.573491] handle_fasteoi_irq+0xb0/0x138 >>>> [ 1.577574] generic_handle_irq+0x30/0x48 >>>> [ 1.581567] __handle_domain_irq+0x60/0xb8 >>>> [ 1.585646] gic_handle_irq+0xb4/0xd0 >>>> [ 1.589300] el1_irq+0xb8/0x150 >>>> [ 1.592428] arch_cpu_idle+0x18/0x28 >>>> [ 1.595992] default_idle_call+0x24/0x5c >>>> [ 1.599899] do_idle+0x1f4/0x290 >>>> [ 1.603118] cpu_startup_entry+0x28/0x68 >>>> [ 1.607026] rest_init+0xd8/0xe8 >>>> [ 1.610242] arch_call_rest_init+0x10/0x1c >>>> [ 1.614329] start_kernel+0x50c/0x544 >>>> [ 1.617980] handlers: >>>> [ 1.620241] [<00000000ae601aac>] dwc2_handle_common_intr >>>> [ 1.625541] [<00000000255d793a>] dwc2_hsotg_irq >>>> [ 1.630056] [<000000000bc68ab4>] usb_hcd_irq >>>> [ 1.634312] Disabling IRQ #33 >>>> >>>> After a git-bisect, the result is this commit: >>>> >>>> >>>> commit 50fb0c128b6e8df62200ba85c05ecd6b1396476d >>>> Author: Artur Petrosyan<Arthur.Petrosyan@xxxxxxxxxxxx> >>>> Date: Tue Apr 13 11:37:15 2021 +0400 >>>> >>>> usb: dwc2: Add clock gating entering flow by system suspend >>>> If not hibernation nor partial power down are supported, >>>> clock gating is used to save power. >>>> Adds a new flow of entering clock gating when PC is >>>> suspended. >>>> Signed-off-by: Artur Petrosyan<Arthur.Petrosyan@xxxxxxxxxxxx> >>>> Link:https://urldefense.com/v3/__https://lore.kernel.org/r/20210413073716.30C13A0094@mailhost.synopsys.com__;!!A4F2R9G_pg!IjGS70cMXB9miMnPdcoGriUpDvARm7ScwrlQXAiH9qN-ZnpcaiM_gD-KWp___MVyvEPm_djJ$ >>>> >>>> Signed-off-by: Greg Kroah-Hartman<gregkh@xxxxxxxxxxxxxxxxxxx> >>>> >>>> The DWC2 USB version on the Agilex platform is >>>> 0x4F54330A >>>> >>> Could you please provide HW configuration registers values (GHWCFG1-4). >>> >> >> [ 0.987779] dwc2 ffb00000.usb: GHWCFG1 @0xFFFF800012940044 : >> 0x00000000 >> [ 0.994644] dwc2 ffb00000.usb: GHWCFG2 @0xFFFF800012940048 : >> 0x238FFC90 >> [ 1.001498] dwc2 ffb00000.usb: GHWCFG3 @0xFFFF80001294004C : >> 0x1F8002E8 >> [ 1.008350] dwc2 ffb00000.usb: GHWCFG4 @0xFFFF800012940050 : >> 0xFE0F0020 >> >> >> I did a little debugging, and noticed that the GINTSTS_PRTINT is >> firing, so the dwc2_handle_common_intr() is getting called >> continuously. There's doesn't seem to be way to handle the >> GINTSTS_PRTINT bit, because there's a check for device_mode(). >> > > It looks like the LPMMode bit is disabled in the GHWCFG3. Could that be > the reason why? > > Dinh Could you please disable clock gating by adding to dwc2_set_default_params() function follow line: p->no_clock_gating = true; like in dwc2_set_s3c6400_params() function. Thanks, Minas
