BMC/Intel-BMC/linux.git/drivers/usb, branch dev-5.8-intel

usb: gadget: aspeed: fix stop dma register setting.

2021-01-21T00:45:15+00:00

The vhub engine has two dma mode, one is descriptor list, another is single stage DMA. Each mode has different stop register setting. Descriptor list operation (bit2) : 0 disable reset, 1: enable reset Single mode operation (bit0) : 0 : disable, 1: enable Signed-off-by: Ryan Chen Acked-by: Joel Stanley Change-Id: Ie4f4fa3e517580ba090d5fa3aef8729a5c8bb692

Merge v5.8.17, commit '6d07b544ce203a684d9ca52635dcf2f4fc89b7d4' into dev-5.8-intel

2020-11-05T01:31:53+00:00

usb: gadget: f_ncm: allow using NCM in SuperSpeed Plus gadgets.

2020-10-29T09:08:30+00:00

[ Upstream commit 7974ecd7d3c0f42a98566f281e44ea8573a2ad88 ] Currently, enabling f_ncm at SuperSpeed Plus speeds results in an oops in config_ep_by_speed because ncm_set_alt passes in NULL ssp_descriptors. Fix this by re-using the SuperSpeed descriptors. This is safe because usb_assign_descriptors calls usb_copy_descriptors. Tested: enabled f_ncm on a dwc3 gadget and 10Gbps link, ran iperf Reviewed-by: Maciej Żenczykowski Signed-off-by: Lorenzo Colitti Signed-off-by: Felipe Balbi Signed-off-by: Sasha Levin

usb: cdns3: gadget: free interrupt after gadget has deleted

2020-10-29T09:08:30+00:00

commit 98df91f8840cf750a0bc7c4c5d6b6085bac945b3 upstream. The interrupt may occur during the gadget deletion, it fixes the below oops. [ 2394.974604] configfs-gadget gadget: suspend [ 2395.042578] configfs-gadget 5b130000.usb: unregistering UDC driver [g1] [ 2395.382562] irq 229: nobody cared (try booting with the "irqpoll" option) [ 2395.389362] CPU: 0 PID: 301 Comm: kworker/u12:6 Not tainted 5.8.0-rc3-next-20200703-00060-g2f13b83cbf30-dirty #456 [ 2395.399712] Hardware name: Freescale i.MX8QM MEK (DT) [ 2395.404782] Workqueue: 2-0051 tcpm_state_machine_work [ 2395.409832] Call trace: [ 2395.412289] dump_backtrace+0x0/0x1d0 [ 2395.415950] show_stack+0x1c/0x28 [ 2395.419271] dump_stack+0xbc/0x118 [ 2395.422678] __report_bad_irq+0x50/0xe0 [ 2395.426513] note_interrupt+0x2cc/0x38c [ 2395.430355] handle_irq_event_percpu+0x88/0x90 [ 2395.434800] handle_irq_event+0x4c/0xe8 [ 2395.438640] handle_fasteoi_irq+0xbc/0x168 [ 2395.442740] generic_handle_irq+0x34/0x48 [ 2395.446752] __handle_domain_irq+0x68/0xc0 [ 2395.450846] gic_handle_irq+0x64/0x150 [ 2395.454596] el1_irq+0xb8/0x180 [ 2395.457733] __do_softirq+0xac/0x3b8 [ 2395.461310] irq_exit+0xc0/0xe0 [ 2395.464448] __handle_domain_irq+0x6c/0xc0 [ 2395.468540] gic_handle_irq+0x64/0x150 [ 2395.472295] el1_irq+0xb8/0x180 [ 2395.475436] _raw_spin_unlock_irqrestore+0x14/0x48 [ 2395.480232] usb_gadget_disconnect+0x120/0x140 [ 2395.484678] usb_gadget_remove_driver+0xb4/0xd0 [ 2395.489208] usb_del_gadget+0x6c/0xc8 [ 2395.492872] cdns3_gadget_exit+0x5c/0x120 [ 2395.496882] cdns3_role_stop+0x60/0x90 [ 2395.500634] cdns3_role_set+0x64/0xd8 [ 2395.504301] usb_role_switch_set_role.part.0+0x3c/0x90 [ 2395.509444] usb_role_switch_set_role+0x20/0x30 [ 2395.513978] tcpm_mux_set+0x60/0xf8 [ 2395.517470] tcpm_reset_port+0xa4/0xf0 [ 2395.521222] tcpm_detach.part.0+0x44/0x50 [ 2395.525227] tcpm_state_machine_work+0x8b0/0x2360 [ 2395.529932] process_one_work+0x1c8/0x470 [ 2395.533939] worker_thread+0x50/0x420 [ 2395.537603] kthread+0x148/0x168 [ 2395.540830] ret_from_fork+0x10/0x18 [ 2395.544399] handlers: [ 2395.546671] [<000000008dea28da>] cdns3_wakeup_irq [ 2395.551375] [<000000009fee5c61>] cdns3_drd_irq threaded [<000000005148eaec>] cdns3_drd_thread_irq [ 2395.560255] Disabling IRQ #229 [ 2395.563454] configfs-gadget gadget: unbind function 'Mass Storage Function'/000000000132f835 [ 2395.563657] configfs-gadget gadget: unbind [ 2395.563917] udc 5b130000.usb: releasing '5b130000.usb' Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver") Cc: Acked-by: Roger Quadros Signed-off-by: Peter Chen Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman

USB: cdc-wdm: Make wdm_flush() interruptible and add wdm_fsync().

2020-10-29T09:08:30+00:00

commit 37d2a36394d954413a495da61da1b2a51ecd28ab upstream. syzbot is reporting hung task at wdm_flush() [1], for there is a circular dependency that wdm_flush() from flip_close() for /dev/cdc-wdm0 forever waits for /dev/raw-gadget to be closed while close() for /dev/raw-gadget cannot be called unless close() for /dev/cdc-wdm0 completes. Tetsuo Handa considered that such circular dependency is an usage error [2] which corresponds to an unresponding broken hardware [3]. But Alan Stern responded that we should be prepared for such hardware [4]. Therefore, this patch changes wdm_flush() to use wait_event_interruptible_timeout() which gives up after 30 seconds, for hardware that remains silent must be ignored. The 30 seconds are coming out of thin air. Changing wait_event() to wait_event_interruptible_timeout() makes error reporting from close() syscall less reliable. To compensate it, this patch also implements wdm_fsync() which does not use timeout. Those who want to be very sure that data has gone out to the device are now advised to call fsync(), with a caveat that fsync() can return -EINVAL when running on older kernels which do not implement wdm_fsync(). This patch also fixes three more problems (listed below) found during exhaustive discussion and testing. Since multiple threads can concurrently call wdm_write()/wdm_flush(), we need to use wake_up_all() whenever clearing WDM_IN_USE in order to make sure that all waiters are woken up. Also, error reporting needs to use fetch-and-clear approach in order not to report same error for multiple times. Since wdm_flush() checks WDM_DISCONNECTING, wdm_write() should as well check WDM_DISCONNECTING. In wdm_flush(), since locks are not held, it is not safe to dereference desc->intf after checking that WDM_DISCONNECTING is not set [5]. Thus, remove dev_err() from wdm_flush(). [1] https://syzkaller.appspot.com/bug?id=e7b761593b23eb50855b9ea31e3be5472b711186 [2] https://lkml.kernel.org/r/27b7545e-8f41-10b8-7c02-e35a08eb1611@i-love.sakura.ne.jp [3] https://lkml.kernel.org/r/79ba410f-e0ef-2465-b94f-6b9a4a82adf5@i-love.sakura.ne.jp [4] https://lkml.kernel.org/r/20200530011040.GB12419@rowland.harvard.edu [5] https://lkml.kernel.org/r/c85331fc-874c-6e46-a77f-0ef1dc075308@i-love.sakura.ne.jp Reported-by: syzbot Cc: stable Co-developed-by: Tetsuo Handa Signed-off-by: Tetsuo Handa Signed-off-by: Oliver Neukum Cc: Alan Stern Link: https://lore.kernel.org/r/20200928141755.3476-1-penguin-kernel@I-love.SAKURA.ne.jp Signed-off-by: Greg Kroah-Hartman

usb: cdc-acm: add quirk to blacklist ETAS ES58X devices

2020-10-29T09:08:30+00:00

commit a4f88430af896bf34ec25a7a5f0e053fb3d928e0 upstream. The ES58X devices has a CDC ACM interface (used for debug purpose). During probing, the device is thus recognized as USB Modem (CDC ACM), preventing the etas-es58x module to load: usbcore: registered new interface driver etas_es58x usb 1-1.1: new full-speed USB device number 14 using xhci_hcd usb 1-1.1: New USB device found, idVendor=108c, idProduct=0159, bcdDevice= 1.00 usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1.1: Product: ES581.4 usb 1-1.1: Manufacturer: ETAS GmbH usb 1-1.1: SerialNumber: 2204355 cdc_acm 1-1.1:1.0: No union descriptor, testing for castrated device cdc_acm 1-1.1:1.0: ttyACM0: USB ACM device Thus, these have been added to the ignore list in drivers/usb/class/cdc-acm.c N.B. Future firmware release of the ES58X will remove the CDC-ACM interface. `lsusb -v` of the three devices variant (ES581.4, ES582.1 and ES584.1): Bus 001 Device 011: ID 108c:0159 Robert Bosch GmbH ES581.4 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 2 Communications bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x108c Robert Bosch GmbH idProduct 0x0159 bcdDevice 1.00 iManufacturer 1 ETAS GmbH iProduct 2 ES581.4 iSerial 3 2204355 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0035 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 5 Bus Powered Configuration bmAttributes 0x80 (Bus Powered) MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 2 Communications bInterfaceSubClass 2 Abstract (modem) bInterfaceProtocol 0 iInterface 4 ACM Control Interface CDC Header: bcdCDC 1.10 CDC Call Management: bmCapabilities 0x01 call management bDataInterface 0 CDC ACM: bmCapabilities 0x06 sends break line coding and serial state Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 10 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Device Status: 0x0000 (Bus Powered) Bus 001 Device 012: ID 108c:0168 Robert Bosch GmbH ES582 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 2 Communications bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x108c Robert Bosch GmbH idProduct 0x0168 bcdDevice 1.00 iManufacturer 1 ETAS GmbH iProduct 2 ES582 iSerial 3 0108933 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0043 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 2 Communications bInterfaceSubClass 2 Abstract (modem) bInterfaceProtocol 1 AT-commands (v.25ter) iInterface 0 CDC Header: bcdCDC 1.10 CDC ACM: bmCapabilities 0x02 line coding and serial state CDC Union: bMasterInterface 0 bSlaveInterface 1 CDC Call Management: bmCapabilities 0x03 call management use DataInterface bDataInterface 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 16 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 10 CDC Data bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 2 Communications bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered) Bus 001 Device 013: ID 108c:0169 Robert Bosch GmbH ES584.1 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 2 Communications bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x108c Robert Bosch GmbH idProduct 0x0169 bcdDevice 1.00 iManufacturer 1 ETAS GmbH iProduct 2 ES584.1 iSerial 3 0100320 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0043 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 2 Communications bInterfaceSubClass 2 Abstract (modem) bInterfaceProtocol 1 AT-commands (v.25ter) iInterface 0 CDC Header: bcdCDC 1.10 CDC ACM: bmCapabilities 0x02 line coding and serial state CDC Union: bMasterInterface 0 bSlaveInterface 1 CDC Call Management: bmCapabilities 0x03 call management use DataInterface bDataInterface 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 16 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 10 CDC Data bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 2 Communications bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered) Signed-off-by: Vincent Mailhol Cc: stable Link: https://lore.kernel.org/r/20201002154219.4887-8-mailhol.vincent@wanadoo.fr Signed-off-by: Greg Kroah-Hartman

usb: gadget: bcm63xx_udc: fix up the error of undeclared usb_debug_root

2020-10-29T09:08:30+00:00

commit 5b35dd1a5a666329192a9616ec21098591259058 upstream. Fix up the build error caused by undeclared usb_debug_root Cc: stable Fixes: a66ada4f241c ("usb: gadget: bcm63xx_udc: create debugfs directory under usb root") Reported-by: kernel test robot Signed-off-by: Chunfeng Yun Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman

usb: core: Solve race condition in anchor cleanup functions

2020-10-29T09:08:28+00:00

[ Upstream commit fbc299437c06648afcc7891e6e2e6638dd48d4df ] usb_kill_anchored_urbs() is commonly used to cancel all URBs on an anchor just before releasing resources which the URBs rely on. By doing so, users of this function rely on that no completer callbacks will take place from any URB on the anchor after it returns. However if this function is called in parallel with __usb_hcd_giveback_urb processing a URB on the anchor, the latter may call the completer callback after usb_kill_anchored_urbs() returns. This can lead to a kernel panic due to use after release of memory in interrupt context. The race condition is that __usb_hcd_giveback_urb() first unanchors the URB and then makes the completer callback. Such URB is hence invisible to usb_kill_anchored_urbs(), allowing it to return before the completer has been called, since the anchor's urb_list is empty. Even worse, if the racing completer callback resubmits the URB, it may remain in the system long after usb_kill_anchored_urbs() returns. Hence list_empty(&anchor->urb_list), which is used in the existing while-loop, doesn't reliably ensure that all URBs of the anchor are gone. A similar problem exists with usb_poison_anchored_urbs() and usb_scuttle_anchored_urbs(). This patch adds an external do-while loop, which ensures that all URBs are indeed handled before these three functions return. This change has no effect at all unless the race condition occurs, in which case the loop will busy-wait until the racing completer callback has finished. This is a rare condition, so the CPU waste of this spinning is negligible. The additional do-while loop relies on usb_anchor_check_wakeup(), which returns true iff the anchor list is empty, and there is no __usb_hcd_giveback_urb() in the system that is in the middle of the unanchor-before-complete phase. The @suspend_wakeups member of struct usb_anchor is used for this purpose, which was introduced to solve another problem which the same race condition causes, in commit 6ec4147e7bdb ("usb-anchor: Delay usb_wait_anchor_empty_timeout wake up till completion is done"). The surely_empty variable is necessary, because usb_anchor_check_wakeup() must be called with the lock held to prevent races. However the spinlock must be released and reacquired if the outer loop spins with an empty URB list while waiting for the unanchor-before-complete passage to finish: The completer callback may very well attempt to take the very same lock. To summarize, using usb_anchor_check_wakeup() means that the patched functions can return only when the anchor's list is empty, and there is no invisible URB being processed. Since the inner while loop finishes on the empty list condition, the new do-while loop will terminate as well, except for when the said race condition occurs. Signed-off-by: Eli Billauer Acked-by: Oliver Neukum Acked-by: Alan Stern Link: https://lore.kernel.org/r/20200731054650.30644-1-eli.billauer@gmail.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

usb: ohci: Default to per-port over-current protection

2020-10-29T09:08:25+00:00

[ Upstream commit b77d2a0a223bc139ee8904991b2922d215d02636 ] Some integrated OHCI controller hubs do not expose all ports of the hub to pins on the SoC. In some cases the unconnected ports generate spurious over-current events. For example the Broadcom 56060/Ranger 2 SoC contains a nominally 3 port hub but only the first port is wired. Default behaviour for ohci-platform driver is to use global over-current protection mode (AKA "ganged"). This leads to the spurious over-current events affecting all ports in the hub. We now alter the default to use per-port over-current protection. This patch results in the following configuration changes depending on quirks: - For quirk OHCI_QUIRK_SUPERIO no changes. These systems remain set up for ganged power switching and no over-current protection. - For quirk OHCI_QUIRK_AMD756 or OHCI_QUIRK_HUB_POWER power switching remains at none, while over-current protection is now guaranteed to be set to per-port rather than the previous behaviour where it was either none or global over-current protection depending on the value at function entry. Suggested-by: Alan Stern Acked-by: Alan Stern Signed-off-by: Hamish Martin Link: https://lore.kernel.org/r/20200910212512.16670-1-hamish.martin@alliedtelesis.co.nz Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin

usb: dwc3: simple: add support for Hikey 970

2020-10-29T09:08:23+00:00

[ Upstream commit b68d9251561f33661e53dd618f1cafe7ec9ec3c2 ] This binding driver is needed for Hikey 970 to work, as otherwise a Serror is produced: [ 1.837458] SError Interrupt on CPU0, code 0xbf000002 -- SError [ 1.837462] CPU: 0 PID: 74 Comm: kworker/0:1 Not tainted 5.8.0+ #205 [ 1.837463] Hardware name: HiKey970 (DT) [ 1.837465] Workqueue: events deferred_probe_work_func [ 1.837467] pstate: 20000005 (nzCv daif -PAN -UAO BTYPE=--) [ 1.837468] pc : _raw_spin_unlock_irqrestore+0x18/0x50 [ 1.837469] lr : regmap_unlock_spinlock+0x14/0x20 [ 1.837470] sp : ffff8000124dba60 [ 1.837471] x29: ffff8000124dba60 x28: 0000000000000000 [ 1.837474] x27: ffff0001b7e854c8 x26: ffff80001204ea18 [ 1.837476] x25: 0000000000000005 x24: ffff800011f918f8 [ 1.837479] x23: ffff800011fbb588 x22: ffff0001b7e40e00 [ 1.837481] x21: 0000000000000100 x20: 0000000000000000 [ 1.837483] x19: ffff0001b767ec00 x18: 00000000ff10c000 [ 1.837485] x17: 0000000000000002 x16: 0000b0740fdb9950 [ 1.837488] x15: ffff8000116c1198 x14: ffffffffffffffff [ 1.837490] x13: 0000000000000030 x12: 0101010101010101 [ 1.837493] x11: 0000000000000020 x10: ffff0001bf17d130 [ 1.837495] x9 : 0000000000000000 x8 : ffff0001b6938080 [ 1.837497] x7 : 0000000000000000 x6 : 000000000000003f [ 1.837500] x5 : 0000000000000000 x4 : 0000000000000000 [ 1.837502] x3 : ffff80001096a880 x2 : 0000000000000000 [ 1.837505] x1 : ffff0001b7e40e00 x0 : 0000000100000001 [ 1.837507] Kernel panic - not syncing: Asynchronous SError Interrupt [ 1.837509] CPU: 0 PID: 74 Comm: kworker/0:1 Not tainted 5.8.0+ #205 [ 1.837510] Hardware name: HiKey970 (DT) [ 1.837511] Workqueue: events deferred_probe_work_func [ 1.837513] Call trace: [ 1.837514] dump_backtrace+0x0/0x1e0 [ 1.837515] show_stack+0x18/0x24 [ 1.837516] dump_stack+0xc0/0x11c [ 1.837517] panic+0x15c/0x324 [ 1.837518] nmi_panic+0x8c/0x90 [ 1.837519] arm64_serror_panic+0x78/0x84 [ 1.837520] do_serror+0x158/0x15c [ 1.837521] el1_error+0x84/0x100 [ 1.837522] _raw_spin_unlock_irqrestore+0x18/0x50 [ 1.837523] regmap_write+0x58/0x80 [ 1.837524] hi3660_reset_deassert+0x28/0x34 [ 1.837526] reset_control_deassert+0x50/0x260 [ 1.837527] reset_control_deassert+0xf4/0x260 [ 1.837528] dwc3_probe+0x5dc/0xe6c [ 1.837529] platform_drv_probe+0x54/0xb0 [ 1.837530] really_probe+0xe0/0x490 [ 1.837531] driver_probe_device+0xf4/0x160 [ 1.837532] __device_attach_driver+0x8c/0x114 [ 1.837533] bus_for_each_drv+0x78/0xcc [ 1.837534] __device_attach+0x108/0x1a0 [ 1.837535] device_initial_probe+0x14/0x20 [ 1.837537] bus_probe_device+0x98/0xa0 [ 1.837538] deferred_probe_work_func+0x88/0xe0 [ 1.837539] process_one_work+0x1cc/0x350 [ 1.837540] worker_thread+0x2c0/0x470 [ 1.837541] kthread+0x154/0x160 [ 1.837542] ret_from_fork+0x10/0x30 [ 1.837569] SMP: stopping secondary CPUs [ 1.837570] Kernel Offset: 0x1d0000 from 0xffff800010000000 [ 1.837571] PHYS_OFFSET: 0x0 [ 1.837572] CPU features: 0x240002,20882004 [ 1.837573] Memory Limit: none Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Felipe Balbi Signed-off-by: Sasha Levin