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We used to write the root port state changes in turn for every port,
sleeping 20ms after every port state change. Suspended usb2 ports need
two state changes, taking minimun 40ms per port.
Now instead poll the Port Link State Change (PLC) bit as
the state change to U0 will set this bit.
Suspended usb2 ports still need the extra 20ms delay, but we now change
all the port states at once so we only need to sleep 20ms once all together
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In the OTG case, the controller might not yet have been
added or is removed before the system suspends.
Assign xhci->main_hcd during probe to prevent NULL
pointer de-reference in xhci_suspend/resume().
Use the hcd->state flag to check if HCD is halted
and if that is so do nothing for xhci_suspend/resume().
[Only for xhci-plat devices, pci devices need it in gen_setup -Mathias]
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The problem seems to be that if a new device is detected
while we have already removed the shared HCD, then many of the
xhci operations (e.g. xhci_alloc_dev(), xhci_setup_device())
hang as command never completes.
I don't think XHCI can operate without the shared HCD as we've
already called xhci_halt() in xhci_only_stop_hcd() when shared HCD
goes away. We need to prevent new commands from being queued
not only when HCD is dying but also when HCD is halted.
The following lockup was detected while testing the otg state
machine.
[ 178.199951] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[ 178.205799] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
[ 178.214458] xhci-hcd xhci-hcd.0.auto: hcc params 0x0220f04c hci version 0x100 quirks 0x00010010
[ 178.223619] xhci-hcd xhci-hcd.0.auto: irq 400, io mem 0x48890000
[ 178.230677] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 178.237796] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 178.245358] usb usb1: Product: xHCI Host Controller
[ 178.250483] usb usb1: Manufacturer: Linux 4.0.0-rc1-00024-g6111320 xhci-hcd
[ 178.257783] usb usb1: SerialNumber: xhci-hcd.0.auto
[ 178.267014] hub 1-0:1.0: USB hub found
[ 178.272108] hub 1-0:1.0: 1 port detected
[ 178.278371] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[ 178.284171] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2
[ 178.294038] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
[ 178.301183] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 178.308776] usb usb2: Product: xHCI Host Controller
[ 178.313902] usb usb2: Manufacturer: Linux 4.0.0-rc1-00024-g6111320 xhci-hcd
[ 178.321222] usb usb2: SerialNumber: xhci-hcd.0.auto
[ 178.329061] hub 2-0:1.0: USB hub found
[ 178.333126] hub 2-0:1.0: 1 port detected
[ 178.567585] dwc3 48890000.usb: usb_otg_start_host 0
[ 178.572707] xhci-hcd xhci-hcd.0.auto: remove, state 4
[ 178.578064] usb usb2: USB disconnect, device number 1
[ 178.586565] xhci-hcd xhci-hcd.0.auto: USB bus 2 deregistered
[ 178.592585] xhci-hcd xhci-hcd.0.auto: remove, state 1
[ 178.597924] usb usb1: USB disconnect, device number 1
[ 178.603248] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[ 190.597337] INFO: task kworker/u4:0:6 blocked for more than 10 seconds.
[ 190.604273] Not tainted 4.0.0-rc1-00024-g6111320 #1058
[ 190.610228] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 190.618443] kworker/u4:0 D c05c0ac0 0 6 2 0x00000000
[ 190.625120] Workqueue: usb_otg usb_otg_work
[ 190.629533] [<c05c0ac0>] (__schedule) from [<c05c10ac>] (schedule+0x34/0x98)
[ 190.636915] [<c05c10ac>] (schedule) from [<c05c1318>] (schedule_preempt_disabled+0xc/0x10)
[ 190.645591] [<c05c1318>] (schedule_preempt_disabled) from [<c05c23d0>] (mutex_lock_nested+0x1ac/0x3fc)
[ 190.655353] [<c05c23d0>] (mutex_lock_nested) from [<c046cf8c>] (usb_disconnect+0x3c/0x208)
[ 190.664043] [<c046cf8c>] (usb_disconnect) from [<c0470cf0>] (_usb_remove_hcd+0x98/0x1d8)
[ 190.672535] [<c0470cf0>] (_usb_remove_hcd) from [<c0485da8>] (usb_otg_start_host+0x50/0xf4)
[ 190.681299] [<c0485da8>] (usb_otg_start_host) from [<c04849a4>] (otg_set_protocol+0x5c/0xd0)
[ 190.690153] [<c04849a4>] (otg_set_protocol) from [<c0484b88>] (otg_set_state+0x170/0xbfc)
[ 190.698735] [<c0484b88>] (otg_set_state) from [<c0485740>] (otg_statemachine+0x12c/0x470)
[ 190.707326] [<c0485740>] (otg_statemachine) from [<c0053c84>] (process_one_work+0x1b4/0x4a0)
[ 190.716162] [<c0053c84>] (process_one_work) from [<c00540f8>] (worker_thread+0x154/0x44c)
[ 190.724742] [<c00540f8>] (worker_thread) from [<c0058f88>] (kthread+0xd4/0xf0)
[ 190.732328] [<c0058f88>] (kthread) from [<c000e810>] (ret_from_fork+0x14/0x24)
[ 190.739898] 5 locks held by kworker/u4:0/6:
[ 190.744274] #0: ("%s""usb_otg"){.+.+.+}, at: [<c0053bf4>] process_one_work+0x124/0x4a0
[ 190.752799] #1: ((&otgd->work)){+.+.+.}, at: [<c0053bf4>] process_one_work+0x124/0x4a0
[ 190.761326] #2: (&otgd->fsm.lock){+.+.+.}, at: [<c048562c>] otg_statemachine+0x18/0x470
[ 190.769934] #3: (usb_bus_list_lock){+.+.+.}, at: [<c0470ce8>] _usb_remove_hcd+0x90/0x1d8
[ 190.778635] #4: (&dev->mutex){......}, at: [<c046cf8c>] usb_disconnect+0x3c/0x208
[ 190.786700] INFO: task kworker/1:0:14 blocked for more than 10 seconds.
[ 190.793633] Not tainted 4.0.0-rc1-00024-g6111320 #1058
[ 190.799567] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 190.807783] kworker/1:0 D c05c0ac0 0 14 2 0x00000000
[ 190.814457] Workqueue: usb_hub_wq hub_event
[ 190.818866] [<c05c0ac0>] (__schedule) from [<c05c10ac>] (schedule+0x34/0x98)
[ 190.826252] [<c05c10ac>] (schedule) from [<c05c4e40>] (schedule_timeout+0x13c/0x1ec)
[ 190.834377] [<c05c4e40>] (schedule_timeout) from [<c05c19f0>] (wait_for_common+0xbc/0x150)
[ 190.843062] [<c05c19f0>] (wait_for_common) from [<bf068a3c>] (xhci_setup_device+0x164/0x5cc [xhci_hcd])
[ 190.852986] [<bf068a3c>] (xhci_setup_device [xhci_hcd]) from [<c046b7f4>] (hub_port_init+0x3f4/0xb10)
[ 190.862667] [<c046b7f4>] (hub_port_init) from [<c046eb64>] (hub_event+0x704/0x1018)
[ 190.870704] [<c046eb64>] (hub_event) from [<c0053c84>] (process_one_work+0x1b4/0x4a0)
[ 190.878919] [<c0053c84>] (process_one_work) from [<c00540f8>] (worker_thread+0x154/0x44c)
[ 190.887503] [<c00540f8>] (worker_thread) from [<c0058f88>] (kthread+0xd4/0xf0)
[ 190.895076] [<c0058f88>] (kthread) from [<c000e810>] (ret_from_fork+0x14/0x24)
[ 190.902650] 5 locks held by kworker/1:0/14:
[ 190.907023] #0: ("usb_hub_wq"){.+.+.+}, at: [<c0053bf4>] process_one_work+0x124/0x4a0
[ 190.915454] #1: ((&hub->events)){+.+.+.}, at: [<c0053bf4>] process_one_work+0x124/0x4a0
[ 190.924070] #2: (&dev->mutex){......}, at: [<c046e490>] hub_event+0x30/0x1018
[ 190.931768] #3: (&port_dev->status_lock){+.+.+.}, at: [<c046eb50>] hub_event+0x6f0/0x1018
[ 190.940558] #4: (&bus->usb_address0_mutex){+.+.+.}, at: [<c046b458>] hub_port_init+0x58/0xb10
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Don't set xhci->shared_hcd to NULL in xhci_stop() as we have
still not de-allocated it. It was resulting in a NULL pointer
de-reference if usb_add/remove_hcd() is called repeatedly.
We want repeated add/remove to work for the OTG use case.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As xhci_hcd is now allocated by usb_create_hcd(), we don't
need to add the primary HCD before creating the shared HCD.
Creating the shared HCD before adding the primary HCD is particularly
useful for the OTG use case so that we know at the OTG core if
the HCD is in single configuration or dual (primary + shared)
configuration.
Signed-off-by: Roger Quadros <rogerq@ti.com>
[Mathias: rearranged to fit on top of the Marvell Armada 385 phy changes]
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
HCD core allocates memory for HCD private data in
usb_create_[shared_]hcd() so make use of that
mechanism to allocate the struct xhci_hcd.
Introduce struct xhci_driver_overrides to provide
the size of HCD private data and hc_driver operation
overrides. As of now we only need to override the
reset and start methods.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Increase the minor range to enable support for up to 256 devices.
Some people are hitting the current 32 device limit. Hopefully 256
minors will be enough for while still.
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the idr-interface rather than a static table to manage minor-number
allocations.
This allows us to easily switch over to fully dynamic minor allocations
when the TTY-layer can handle that.
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Static checkers complain that the current condition is never true. It
seems pretty likely that it's a typo and "URB" was intended instead of
"USB".
Fixes: 3d97ff63f8 ('usbdevfs: Use scatter-gather lists for large bulk transfers')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some EHCI controllers have a Transaction Translator built into
the root hub. Support this feature in device tree when using
the ehci-platform driver by adding a feature flag for it.
This is needed to get USB working on NXP LPC18xx/43xx platforms.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Make Freescale EHCI driver an independent entity from ehci-hcd.c.
This involves
- using module_init/module_exit functions
- using overrides structure
- some necessary code cleanup
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here are a few device-id changes removing a duplicate entry, refining
another and adding a third.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for v4.1-rc4
Here are a few device-id changes removing a duplicate entry, refining
another and adding a third.
Signed-off-by: Johan Hovold <johan@kernel.org>
While accessing a unusual usb storage (ums-alauda, ums-cypress, ...),
the module reference count is not incremented. Because these drivers
allocate scsi hosts with usb_stor_host_template defined in usb-storage
module. So these drivers always can be unloaded.
This fixes it by preparing scsi host template which is initialized
at module_init() for each ums-* driver. In order to minimize the
difference in ums-* drivers, introduce module_usb_stor_driver() helper
macro which is same as module_usb_driver() except that it also
initializes scsi host template.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Vinayak Holikatti <vinholikatti@gmail.com>
Cc: Dolev Raviv <draviv@codeaurora.org>
Cc: Sujit Reddy Thumma <sthumma@codeaurora.org>
Cc: Subhash Jadavani <subhashj@codeaurora.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Hannes Reinecke <hare@suse.de>
Cc: linux-usb@vger.kernel.org
Cc: usb-storage@lists.one-eyed-alien.net
Cc: linux-scsi@vger.kernel.org
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The platform_device_id is not modified by the driver and core uses it as
const.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
Acked-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
CC: Duncan Sands <duncan.sands@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
CC: Duncan Sands <duncan.sands@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
CC: Thomas Winischhofer <thomas@winischhofer.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
CC: Thomas Winischhofer <thomas@winischhofer.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
CC: Olav Kongas <ok@artecdesign.ee>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
CC: Al Viro <viro@zeniv.linux.org.uk>
CC: Peter Chen <peter.chen@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
CC: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
CC: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
CC: Dan Williams <dan.j.williams@intel.com>
CC: Petr Mladek <pmladek@suse.cz>
CC: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
CC: Dan Williams <dan.j.williams@intel.com>
CC: Antoine Tenart <antoine.tenart@free-electrons.com>
CC: Petr Mladek <pmladek@suse.cz>
CC: Michal Sojka <sojka@merica.cz>
CC: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
CC: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
CC: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
CC: Petr Mladek <pmladek@suse.cz>
CC: Randy Dunlap <rdunlap@infradead.org>
CC: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
We should not be doing assignments within an if () block
so fix up the code to not do this.
change was created using Coccinelle.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Fixed two warnings sizeof name and Blank line after declaration
Signed-off-by: Nizam Haider <nizamhaider786@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The phy-rcar-gen2-usb driver, which supports legacy platform data only,
is no longer used since commit a483dcbfa2 ("ARM: shmobile: lager:
Remove legacy board support").
This driver was superseded by the DT-only phy-rcar-gen2 driver, which
was introduced in commit 1233f59f74 ("phy: Renesas R-Car Gen2 PHY
driver").
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Without this flag some versions of these enclosures do not work.
Cc: stable@vger.kernel.org
Reported-and-tested-by: Christian Schaller <cschalle@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
I've had the same issue as described in commit
c68929f75d
Except my touchscreen's ID is
ID 04f3:0125 Elan Microelectronics Corp.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If the xHCI host controller has died (ie, device removed) or suffered
other serious fatal error (STS_FATAL), then xhci_irq should handle this
condition with IRQ_HANDLED instead of -ESHUTDOWN.
Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Our event ring consists of only one segment, and we risk filling
the event ring in case we get isoc transfers with short intervals
such as webcams that fill a TD every microframe (125us)
With 64 TRB segment size one usb camera could fill the event ring in 8ms.
A setup with several cameras and other devices can fill up the
event ring as it is shared between all devices.
This has occurred when uvcvideo queues 5 * 32TD URBs which then
get cancelled when the video mode changes. The cancelled URBs are returned
in the xhci interrupt context and blocks the interrupt handler from
handling the new events.
A full event ring will block xhci from scheduling traffic and affect all
devices conneted to the xhci, will see errors such as Missed Service
Intervals for isoc devices, and and Split transaction errors for LS/FS
interrupt devices.
Increasing the TRB_PER_SEGMENT will also increase the default endpoint ring
size, which is welcome as for most isoc transfer we had to dynamically
expand the endpoint ring anyway to be able to queue the 5 * 32TDs uvcvideo
queues.
The default size used to be 64 TRBs per segment
Cc: <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Isoc TDs usually consist of one TRB, sometimes two. When all goes well we
receive only one success event for a TD, and move the dequeue pointer to
the next TD.
This fails if the TD consists of two TRBs and we get a transfer error
on the first TRB, we will then see two events for that TD.
Fix this by making sure the event we get is for the last TRB in that TD
before moving the dequeue pointer to the next TD. This will resolve some
of the uvc and dvb issues with the
"ERROR Transfer event TRB DMA ptr not part of current TD" error message
Cc: <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-ci-v4.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-linus
Peter writes:
Only a small fix for /sys entry
Here's the first pull request for v4.1-rc cycle,
it contains a few interesting fixes including a
fix to correct register offsets on dwc3, a fix
for Kconfig dependencies on isp1301 phy driver,
and a bug fix for our configfs gadget creation
interface.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'fixes-for-v4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v4.1-rc2
Here's the first pull request for v4.1-rc cycle,
it contains a few interesting fixes including a
fix to correct register offsets on dwc3, a fix
for Kconfig dependencies on isp1301 phy driver,
and a bug fix for our configfs gadget creation
interface.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Make sure only to copy any actual data rather than the whole buffer,
when releasing the temporary buffer used for unaligned non-isochronous
transfers.
Compile-tested only.
Signed-off-by: Johan Hovold <johan@kernel.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Make sure only to copy any actual data rather than the whole buffer,
when releasing the temporary buffer used for unaligned non-isochronous
transfers.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
USB 2.01+ full-speed devices can have extended descriptor as well
and can support LPM.
Signed-off-by: Rupesh Tatiya <rtatiya@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Single transform macros with hidden arguments are not
particularly useful. Just use seq_printf directly instead.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The USB PCI quirks code gets built into the kernel whenever CONFIG_PCI
is enabled, even if CONFIG_USB is not set. This can cause unnecessary
messages to show up in the kernel log, such as "CONFIG_USB_XHCI_HCD is
turned off, defaulting to EHCI" (which makes no sense when the kernel
has been configured without host-side USB support).
This patch addresses the problem by building pci-quirks.o only when
CONFIG_PCI and CONFIG_USB are both enabled.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Microsoft document "Using ACPI to Configure USB Ports on a Computer"
makes it clear that the removable flag will be cleared on ports that are
marked as unused by the firmware. Handle this case to match.
Signed-off-by: Matthew Garrett <mjg59@coreos.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
