I have tried to play music on usb headset on BeagleBone Black
but it doesn't work.
This series intend to fix it.
[ 12.476441] usb 1-1: new full-speed USB device number 2 using musb-hdrc
[ 12.896297] usb 1-1: New USB device found, idVendor=047f, idProduct=c035
[ 12.903413] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 12.911144] usb 1-1: Product: Plantronics C520
[ 12.915848] usb 1-1: Manufacturer: Plantronics
[ 12.920639] usb 1-1: SerialNumber: D6E3CB79C4662A4BA9D79F167CF83EC1
[ 13.938461] usbcore: registered new interface driver usbhid
[ 13.944322] usbhid: USB HID core driver
[ 14.020990] usb 1-1: Warning! Unlikely big volume range (=8192), cval->res is probably wrong.
[ 14.030018] usb 1-1: [11] FU [Sidetone Playback Volume] ch = 1, val = 0/8192/1
[ 14.061893] usbcore: registered new interface driver snd-usb-audio
[ 18.466596] cppi41-dma-engine 47400000.dma-controller: cppi41_irq pm runtime get: -115
[ 18.576263] ------------[ cut here ]------------
[ 18.581247] WARNING: CPU: 0 PID: 14 at drivers/dma/cppi41.c:1154 cppi41_runtime_suspend+0x28/0x34 [cppi41]
[ 18.591577] Modules linked in: snd_usb_audio snd_usbmidi_lib snd_rawmidi usbhid snd_hwdep evdev musb_dsps musb_hdrc usbcore phy_am335x cppi41 udc_core usb_common phy_generic phy_am335x_control snd_soc_simple_card snd_soc_simple_card_utils snd_soc_davinci_mcasp snd_soc_omap snd_soc_edma snd_soc_core omap_rng snd_pcm_dmaengine rng_core snd_pcm snd_timer snd soundcore at24 rtc_omap musb_am335x omap_wdt tps65218_pwrbutton cpufreq_dt nvmem_core leds_gpio thermal_sys led_class hwmon
[ 18.636684] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 4.10.0-rc2-next-20170103-00020-g0f64df3-dirty #202
[ 18.646944] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 18.653401] Workqueue: pm pm_runtime_work
[ 18.657694] [<c010f484>] (unwind_backtrace) from [<c010b5dc>] (show_stack+0x10/0x14)
[ 18.665873] [<c010b5dc>] (show_stack) from [<c04933d4>] (dump_stack+0xa0/0xd8)
[ 18.673519] [<c04933d4>] (dump_stack) from [<c013692c>] (__warn+0xd4/0xfc)
[ 18.680789] [<c013692c>] (__warn) from [<c0136974>] (warn_slowpath_null+0x20/0x28)
[ 18.688804] [<c0136974>] (warn_slowpath_null) from [<bf279134>] (cppi41_runtime_suspend+0x28/0x34 [cppi41])
[ 18.699218] [<bf279134>] (cppi41_runtime_suspend [cppi41]) from [<c0554b9c>] (pm_generic_runtime_suspend+0x2c/0x40)
[ 18.710225] [<c0554b9c>] (pm_generic_runtime_suspend) from [<c0558044>] (__rpm_callback+0x44/0x1ec)
[ 18.719769] [<c0558044>] (__rpm_callback) from [<c0558214>] (rpm_callback+0x28/0x88)
[ 18.727941] [<c0558214>] (rpm_callback) from [<c0556c20>] (rpm_suspend+0xf0/0x638)
[ 18.735931] [<c0556c20>] (rpm_suspend) from [<c05587ec>] (pm_runtime_work+0x7c/0x98)
[ 18.744119] [<c05587ec>] (pm_runtime_work) from [<c0153cd8>] (process_one_work+0x1e0/0x6d8)
[ 18.752936] [<c0153cd8>] (process_one_work) from [<c015436c>] (worker_thread+0x164/0x48c)
[ 18.761574] [<c015436c>] (worker_thread) from [<c015a5b4>] (kthread+0xf8/0x134)
[ 18.769299] [<c015a5b4>] (kthread) from [<c0107890>] (ret_from_fork+0x14/0x24)
[ 18.777153] ---[ end trace fc3a8cc6a95cb86f ]---
[ 28.650884] ------------[ cut here ]------------
[ 28.655867] WARNING: CPU: 0 PID: 14 at drivers/dma/cppi41.c:452 push_desc_queue+0x94/0x9c [cppi41]
[ 28.665304] Modules linked in: snd_usb_audio snd_usbmidi_lib snd_rawmidi usbhid snd_hwdep evdev musb_dsps musb_hdrc usbcore phy_am335x cppi41 udc_core usb_common phy_generic phy_am335x_control snd_soc_simple_card snd_soc_simple_card_utils snd_soc_davinci_mcasp snd_soc_omap snd_soc_edma snd_soc_core omap_rng snd_pcm_dmaengine rng_core snd_pcm snd_timer snd soundcore at24 rtc_omap musb_am335x omap_wdt tps65218_pwrbutton cpufreq_dt nvmem_core leds_gpio thermal_sys led_class hwmon
[ 28.710225] CPU: 0 PID: 14 Comm: kworker/0:1 Tainted: G W 4.10.0-rc2-next-20170103-00020-g0f64df3-dirty #202
[ 28.721757] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 28.728213] Workqueue: pm pm_runtime_work
[ 28.732507] [<c010f484>] (unwind_backtrace) from [<c010b5dc>] (show_stack+0x10/0x14)
[ 28.740687] [<c010b5dc>] (show_stack) from [<c04933d4>] (dump_stack+0xa0/0xd8)
[ 28.748333] [<c04933d4>] (dump_stack) from [<c013692c>] (__warn+0xd4/0xfc)
[ 28.755603] [<c013692c>] (__warn) from [<c0136974>] (warn_slowpath_null+0x20/0x28)
[ 28.763617] [<c0136974>] (warn_slowpath_null) from [<bf278250>] (push_desc_queue+0x94/0x9c [cppi41])
[ 28.773440] [<bf278250>] (push_desc_queue [cppi41]) from [<bf27857c>] (cppi41_runtime_resume+0x44/0x88 [cppi41])
[ 28.784197] [<bf27857c>] (cppi41_runtime_resume [cppi41]) from [<c0554bdc>] (pm_generic_runtime_resume+0x2c/0x40)
[ 28.795024] [<c0554bdc>] (pm_generic_runtime_resume) from [<c0558044>] (__rpm_callback+0x44/0x1ec)
[ 28.804476] [<c0558044>] (__rpm_callback) from [<c0558214>] (rpm_callback+0x28/0x88)
[ 28.812650] [<c0558214>] (rpm_callback) from [<c0557a68>] (rpm_resume+0x3d4/0x6e8)
[ 28.820641] [<c0557a68>] (rpm_resume) from [<c05587d8>] (pm_runtime_work+0x68/0x98)
[ 28.828738] [<c05587d8>] (pm_runtime_work) from [<c0153cd8>] (process_one_work+0x1e0/0x6d8)
[ 28.837558] [<c0153cd8>] (process_one_work) from [<c015436c>] (worker_thread+0x164/0x48c)
[ 28.846196] [<c015436c>] (worker_thread) from [<c015a5b4>] (kthread+0xf8/0x134)
[ 28.853924] [<c015a5b4>] (kthread) from [<c0107890>] (ret_from_fork+0x14/0x24)
[ 28.861537] ---[ end trace fc3a8cc6a95cb870 ]---
[ 28.866456] Unable to handle kernel NULL pointer dereference at virtual address 00000104
[ 28.874979] pgd = c0004000
[ 28.877841] [00000104] *pgd=00000000
[ 28.881647] Internal error: Oops: 817 [#1] SMP ARM
[ 28.886706] Modules linked in: snd_usb_audio snd_usbmidi_lib snd_rawmidi usbhid snd_hwdep evdev musb_dsps musb_hdrc usbcore phy_am335x cppi41 udc_core usb_common phy_generic phy_am335x_control snd_soc_simple_card snd_soc_simple_card_utils snd_soc_davinci_mcasp snd_soc_omap snd_soc_edma snd_soc_core omap_rng snd_pcm_dmaengine rng_core snd_pcm snd_timer snd soundcore at24 rtc_omap musb_am335x omap_wdt tps65218_pwrbutton cpufreq_dt nvmem_core leds_gpio thermal_sys led_class hwmon
[ 28.931576] CPU: 0 PID: 14 Comm: kworker/0:1 Tainted: G W 4.10.0-rc2-next-20170103-00020-g0f64df3-dirty #202
[ 28.943107] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 28.949543] Workqueue: pm pm_runtime_work
[ 28.953791] task: de1321c0 task.stack: de176000
[ 28.958593] PC is at cppi41_runtime_resume+0x50/0x88 [cppi41]
[ 28.964661] LR is at warn_slowpath_null+0x20/0x28
[ 28.969632] pc : [<bf278588>] lr : [<c0136974>] psr: 60070093
[ 28.969632] sp : de177e50 ip : 00000000 fp : dd0cf510
[ 28.981717] r10: de7d2b00 r9 : a0070013 r8 : 00000100
[ 28.987229] r7 : 00000200 r6 : de7d2af8 r5 : 00000078 r4 : dd008540
[ 28.994109] r3 : 00000078 r2 : 00000200 r1 : 00000100 r0 : 00000000
[ 29.000994] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none
[ 29.008606] Control: 10c5387d Table: 9d488019 DAC: 00000051
[ 29.014665] Process kworker/0:1 (pid: 14, stack limit = 0xde176218)
[ 29.021271] Stack: (0xde177e50 to 0xde178000)
[ 29.025881] 7e40: dd0cf410 de196810 dd0cf4b4 c0c04900
[ 29.034513] 7e60: 00000002 c0554bb0 00000000 c0554bdc de1321c0 c0558044 00000001 dd0cf4b4
[ 29.043143] 7e80: de1968b4 dd0cf410 de196810 c0554bb0 c0c04900 00000002 c01874ac 00000000
[ 29.051774] 7ea0: dd0cf510 c0558214 00000000 dd0cf410 de196810 c0557a68 c0558784 df946a40
[ 29.060405] 7ec0: df94da00 c0cc1970 00000001 de177f28 de1321c0 dd0cf4b4 dd0cf554 df946a40
[ 29.069037] 7ee0: df94da00 c0cc1970 00000001 de177f28 c0c0792c c05587d8 c0558770 de14b880
[ 29.077667] 7f00: dd0cf554 c0153cd8 00000001 00000000 c0153c18 c0c0792c 4d3c9129 df946a40
[ 29.086297] 7f20: 00000000 00000000 c1499dbc c0e013dc 00000000 c09e5d9c de1321c0 de14b880
[ 29.094928] 7f40: df946a40 df946a74 c0c04900 c0c4dc86 00000008 de14b898 df946a40 c015436c
[ 29.103559] 7f60: de1321c0 de14b580 00000000 de14b580 00000000 de158040 de14b5b8 de093e98
[ 29.112190] 7f80: c0154208 de14b880 00000000 c015a5b4 de158040 c015a4bc 00000000 00000000
[ 29.120819] 7fa0: 00000000 00000000 00000000 c0107890 00000000 00000000 00000000 00000000
[ 29.129448] 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 29.138078] 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000 b392d675 d669cbdc
[ 29.146731] [<bf278588>] (cppi41_runtime_resume [cppi41]) from [<c0554bdc>] (pm_generic_runtime_resume+0x2c/0x40)
[ 29.157555] [<c0554bdc>] (pm_generic_runtime_resume) from [<c0558044>] (__rpm_callback+0x44/0x1ec)
[ 29.167006] [<c0558044>] (__rpm_callback) from [<c0558214>] (rpm_callback+0x28/0x88)
[ 29.175178] [<c0558214>] (rpm_callback) from [<c0557a68>] (rpm_resume+0x3d4/0x6e8)
[ 29.183168] [<c0557a68>] (rpm_resume) from [<c05587d8>] (pm_runtime_work+0x68/0x98)
[ 29.191255] [<c05587d8>] (pm_runtime_work) from [<c0153cd8>] (process_one_work+0x1e0/0x6d8)
[ 29.200071] [<c0153cd8>] (process_one_work) from [<c015436c>] (worker_thread+0x164/0x48c)
[ 29.208703] [<c015436c>] (worker_thread) from [<c015a5b4>] (kthread+0xf8/0x134)
[ 29.216422] [<c015a5b4>] (kthread) from [<c0107890>] (ret_from_fork+0x14/0x24)
[ 29.224051] Code: ebffff0f e594208c e5941088 e1a03005 (e5812004)
[ 29.230492] ---[ end trace fc3a8cc6a95cb871 ]---
Note that with this series, I'm able to play music again but
I have a lot of underruns. These underruns doesn't happens when
the dma is not enabled.
Changes in v2:
- remove the condition and use list_empty to set the variable "active"
Alexandre Bailon (2):
dmaengine: cppi41: Fix list not empty warning on runtime suspend
dmaengine: cppi41: Ignore EINPROGRESS for PM runtime in interrupt
handler
drivers/dma/cppi41.c | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
--
2.10.2
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