| Commit message (Collapse) | Author | Age | Files | Lines |
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The comment says function wa_nep_queue() should return 0 if ok, and <0
errno code on error. However, its implementation always returns 0, even
if the call to kzalloc() fails. As a result, the return value may be
inconsistent with the execution status, which may mislead the callers.
This patch fixes the bug, returning -ENOMEM when the call to kzalloc()
fails.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In function __wa_xfer_setup_segs(), variable result takes the return
value. Its value should be a negative errno on failures. Because result
may be reassigned in a loop, and its value is guaranteed to be not less
than 0 during the following repeats of the loop. So when the call to
kmalloc() or usb_alloc_urb() fails in the loop, the value of variable
result may be 0 (indicates no error), which is inconsistent with the
execution status. This patch fixes the bug, initializing variable result
with -ENOMEM in the loop.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In function wusb_dev_sec_add(), variable result takes the return value.
Its value should be negative on failures. When function krealloc() is
called, an earlier check of variable result guarantees that the value of
result must not be less than "sizeof(*secd)", and result is not
reassigned when krealloc() returns a NULL pointer. As a result, a
positive value may be returned, which makes it impossible for the caller
of wusb_dev_sec_add() to detect the error. This patch fixes the bug by
assigning -ENOMEM to result when krealloc() returns NULL.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The ehci_w90x900_probe function is not doing anything other than
calling usb_w90x900_probe function so ehci_w90x900_probe function
is unuseful that is why removed ehci_w90x900_probe functions and
renamed usb_w90x900_probe function to ehci_w90x900_probe for proper
naming.
The ehci_w90x900_remove function is also not doing anything other
than calling usb_w90x900_remove that is why removed ehci_w90x900_remove
function and renamed usb_w90x900_remove to ehci_w90x900_remove for proper
naming.
This also removes warning of checkpatch.pl script.
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: linux-usb@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Allows configuring Samsung's s3c2410 USB OHCI controller using a
devicetree.
Signed-off-by: Sergio Prado <sergio.prado@e-labworks.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The da8xx ohci controller is not working after suspend and resume.
This is because only the root hub is being resumed.
Balance the ohci_suspend of the suspend path with an ohci_resume
in the resume path so that we resume the entire controller, and not
just the root hub.
Also, while we are here, remove setting device power_state,
as this is no longer needed and scheduled for removal
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This adds the compatible string to the ohci driver
to be able to probe from DT
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using a regulator to handle VBUS will eliminate the need for
platform data and callbacks, and make the driver more generic
allowing different types of regulators to handle VBUS.
The regulator equivalents to the platform callbacks are:
set_power -> regulator_enable/regulator_disable
get_power -> regulator_is_enabled
get_oci -> regulator_get_error_flags
ocic_notify -> regulator event notification
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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To migrate to a DT based boot, we will remove the use of platform
callbacks, in favor of using the regulator framework to handle
vbus and over current.
In preparation to use a regulator instead of callbacks, move the platform
data callbacks into separate functions. This provides well defined place
to for the regulator API to coexist with the platform callbacks before
all users are converted.
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instead of global variables, use the extra_priv_size of
the ohci driver.
We cannot yet move the ocic mask because this is used on
the interrupt handler which is registered through platform
data and does not have an hcd pointer. This will be moved
on a later patch.
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next
Peter writes:
- Adding ULPI PHY support for imx53
- Properly mark little endian descriptors for udc
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The internal 60Mhz clock for host2 and host3 are useless in ULPI
phy mode, so we disable it when configuring ULPI PHY node for
those host.
Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.co.uk>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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In order to use ULPI phy with usb host 2 and 3, we need to configure
controller register to enable ULPI features.
Each USB controller have different behaviour, so in order to avoid to have
several "swicth(data->index)" and lock/unlock, we prefer to get the index
switch and then test for features if they exist for this index.
This patch also remove useless test of reg and val. Those two values cannot
be NULL.
Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.co.uk>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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The DMA descriptors are little endian, and we do a pretty good
job of handling them with the proper le32_to_cpu() markings, but
we don't actually mark them as __le32. This means checkers like
sparse can't easily find new bugs. Let's mark the members of
structures properly and fix the few places where we're missing
conversions.
Cc: Peter Chen <peter.chen@nxp.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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We want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for v4.9-rc6
Here are a couple of new device ids.
Signed-off-by: Johan Hovold <johan@kernel.org>
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The BRIM Brothers Zone DPMX is a bicycle powermeter. This ID is for the USB
serial interface in its charging dock for the control pods, via which some
settings for the pods can be modified.
Signed-off-by: Paul Jakma <paul@jakma.org>
Cc: Barry Redmond <barry@brimbrothers.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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This patch adds support for the TI CC3200 LaunchPad board, which uses a
custom USB vendor ID and product ID. Channel A is used for JTAG, and
channel B is used for a UART.
Signed-off-by: Doug Brown <doug@schmorgal.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v4.9-rc5
One single fix for FunctionFS to make sure we're checking
ffs_func_req_match()'s return code correctly.
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Properly check the return code of ffs_func_revmap_intf() and
ffs_func_revmap_ep() for a non-negative value.
Instead of checking the return code, the comparison was performed for the last
parameter of the function calls, because of wrong parenthesis.
This also fixes the following static checker warning:
drivers/usb/gadget/function/f_fs.c:3152 ffs_func_req_match()
warn: always true condition '(((creq->wIndex)) >= 0) => (0-u16max >= 0)'
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Hädicke <felixhaedicke@web.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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This already gets done automatically by PM runtime and we have
a separate autosuspend timeout in musb_core.c.
Reviewed-by: Johan Hovold <johan@kernel.org>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We are missing pm_runtime_disable() in 2430 glue layer. Further,
we only need to enable PM runtime and disable it on exit. With
musb_core.c doing PM, the glue layer as a parent will always be
active when musb_core.c is active.
This fixes host enumeration issues with some devices as reported
by Ladislav Michl <ladis@linux-mips.org>.
And holding an RPM reference while deregistering the child would
lead to a crash in omap2430_runtime_suspend() which dereferences
the now freed child's driver data on put as pointed out by
Johan Hovold <johan@kernel.org>:
Unable to handle kernel paging request at virtual address 6b6b6f17
...
[<c05453d4>] (omap2430_runtime_suspend) from [<c0481410>]
(pm_generic_runtime_suspend+0x3c/0x48)
[<c0481410>] (pm_generic_runtime_suspend) from [<c0121028>]
(_od_runtime_suspend+0x1c/0x30)
[<c0121028>] (_od_runtime_suspend) from [<c04833b0>] (__rpm_callback+0x3c/0x70)
[<c04833b0>] (__rpm_callback) from [<c0483414>] (rpm_callback+0x30/0x90)
[<c0483414>] (rpm_callback) from [<c0483984>] (rpm_suspend+0x118/0x6b4)
[<c0483984>] (rpm_suspend) from [<c04840f4>] (rpm_idle+0x104/0x440)
[<c04840f4>] (rpm_idle) from [<c04844ac>] (__pm_runtime_idle+0x7c/0xb0)
[<c04844ac>] (__pm_runtime_idle) from [<c0545458>] (omap2430_remove+0x38/0x58)
[<c0545458>] (omap2430_remove) from [<c047b2bc>] (platform_drv_remove+0x34/0x4c)
Note that if changes are needed to the autosuspend timeout, it should
be done in musb_core.c.
Reported-by: Ladislav Michl <ladis@linux-mips.org>
Fixes: 87326e858448 ("usb: musb: Remove extra PM runtime calls from
2430 glue layer")
Tested-by: Ladislav Michl <ladis@linux-mips.org>
Reviewed-by: Johan Hovold <johan@kernel.org>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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With a USB hub disconnected, devctl can be 0x19 for about a second
on am335x and will stay forever on at least omap3. And we get no
further interrupts when devctl session bit clears. This keeps
PM runtime active.
Let's fix the issue by polling devctl until the session bit clears
or times out. We can do this by making musb->irq_work into
delayed_work.
And with the polling implemented, we can now also have the quirk
for invalid VBUS it to avoid disconnecting too early while VBUS
is ramping up.
Fixes: 467d5c980709 ("usb: musb: Implement session bit based runtime
PM for musb-core")
Fixes: 65b3f50ed6fa ("usb: musb: Add PM runtime support for MUSB DSPS
Tested-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit 65b3f50ed6fa ("usb: musb: Add PM runtime support for MUSB DSPS
glue layer") wrongly added a call for pm_runtime_get_sync to otg_timer
that runs in softirq context. That causes a "BUG: sleeping function called
from invalid context" every time when polling the cable status:
[<c015ebb4>] (__might_sleep) from [<c0413d60>] (__pm_runtime_resume+0x9c/0xa0)
[<c0413d60>] (__pm_runtime_resume) from [<c04d0bc4>] (otg_timer+0x3c/0x254)
[<c04d0bc4>] (otg_timer) from [<c0191180>] (call_timer_fn+0xfc/0x41c)
[<c0191180>] (call_timer_fn) from [<c01915c0>] (expire_timers+0x120/0x210)
[<c01915c0>] (expire_timers) from [<c0191acc>] (run_timer_softirq+0xa4/0xdc)
[<c0191acc>] (run_timer_softirq) from [<c010168c>] (__do_softirq+0x12c/0x594)
I did not notice that as I did not have CONFIG_DEBUG_ATOMIC_SLEEP enabled.
And looks like also musb_gadget_queue() suffers from the same problem.
Let's fix the issue by using a list of delayed work then call it on
resume. Note that we want to do this only when musb core and it's
parent devices are awake, and we need to make sure the DSPS glue
timer is stopped as noted by Johan Hovold <johan@kernel.org>.
Note that we already are re-enabling the timer with mod_timer() in
dsps_musb_enable().
Later on we may be able to remove other delayed work in the musb driver
and just do it from pending_resume_work. But this should be done only
for delayed work that does not have other timing requirements beyond
just being run on resume.
Fixes: 65b3f50ed6fa ("usb: musb: Add PM runtime support for MUSB DSPS
glue layer")
Reported-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Johan Hovold <johan@kernel.org>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We can't use static variable first for checking when musb is
initialized when we have multiple musb instances like on am335x.
Tested-by: Ladislav Michl <ladis@linux-mips.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This can fix below dump when the lock is accessed at host
mode due to it is not initialized.
[ 46.119638] INFO: trying to register non-static key.
[ 46.124643] the code is fine but needs lockdep annotation.
[ 46.130144] turning off the locking correctness validator.
[ 46.135659] CPU: 0 PID: 690 Comm: cat Not tainted 4.9.0-rc3-00079-g4b75f1d #1210
[ 46.143075] Hardware name: Freescale i.MX6 SoloX (Device Tree)
[ 46.148923] Backtrace:
[ 46.151448] [<c010c460>] (dump_backtrace) from [<c010c658>] (show_stack+0x18/0x1c)
[ 46.159038] r7:edf52000
[ 46.161412] r6:60000193
[ 46.163967] r5:00000000
[ 46.165035] r4:c0e25c2c
[ 46.169109] [<c010c640>] (show_stack) from [<c03f58a4>] (dump_stack+0xb4/0xe8)
[ 46.176362] [<c03f57f0>] (dump_stack) from [<c016d690>] (register_lock_class+0x4fc/0x56c)
[ 46.184554] r10:c0e25d24
[ 46.187014] r9:edf53e70
[ 46.189569] r8:c1642444
[ 46.190637] r7:ee9da024
[ 46.193191] r6:00000000
[ 46.194258] r5:00000000
[ 46.196812] r4:00000000
[ 46.199185] r3:00000001
[ 46.203259] [<c016d194>] (register_lock_class) from [<c0171294>] (__lock_acquire+0x80/0x10f0)
[ 46.211797] r10:c0e25d24
[ 46.214257] r9:edf53e70
[ 46.216813] r8:ee9da024
[ 46.217880] r7:c1642444
[ 46.220435] r6:edcd1800
[ 46.221502] r5:60000193
[ 46.224057] r4:00000000
[ 46.227953] [<c0171214>] (__lock_acquire) from [<c01726c0>] (lock_acquire+0x74/0x94)
[ 46.235710] r10:00000001
[ 46.238169] r9:edf53e70
[ 46.240723] r8:edf53f80
[ 46.241790] r7:00000001
[ 46.244344] r6:00000001
[ 46.245412] r5:60000193
[ 46.247966] r4:00000000
[ 46.251866] [<c017264c>] (lock_acquire) from [<c096c8fc>] (_raw_spin_lock_irqsave+0x40/0x54)
[ 46.260319] r7:ee1c6a00
[ 46.262691] r6:c062a570
[ 46.265247] r5:20000113
[ 46.266314] r4:ee9da014
[ 46.270393] [<c096c8bc>] (_raw_spin_lock_irqsave) from [<c062a570>] (ci_port_test_show+0x2c/0x70)
[ 46.279280] r6:eebd2000
[ 46.281652] r5:ee9da010
[ 46.284207] r4:ee9da014
[ 46.286810] [<c062a544>] (ci_port_test_show) from [<c0248d04>] (seq_read+0x1ac/0x4f8)
[ 46.294655] r9:edf53e70
[ 46.297028] r8:edf53f80
[ 46.299583] r7:ee1c6a00
[ 46.300650] r6:00000001
[ 46.303205] r5:00000000
[ 46.304273] r4:eebd2000
[ 46.306850] [<c0248b58>] (seq_read) from [<c039e864>] (full_proxy_read+0x54/0x6c)
[ 46.314348] r10:00000000
[ 46.316808] r9:c0a6ad30
[ 46.319363] r8:edf53f80
[ 46.320430] r7:00020000
[ 46.322986] r6:b6de3000
[ 46.324053] r5:ee1c6a00
[ 46.326607] r4:c0248b58
[ 46.330505] [<c039e810>] (full_proxy_read) from [<c021ec98>] (__vfs_read+0x34/0x118)
[ 46.338262] r9:edf52000
[ 46.340635] r8:c0107fc4
[ 46.343190] r7:00020000
[ 46.344257] r6:edf53f80
[ 46.346812] r5:c039e810
[ 46.347879] r4:ee1c6a00
[ 46.350447] [<c021ec64>] (__vfs_read) from [<c021fbd0>] (vfs_read+0x8c/0x11c)
[ 46.357597] r9:edf52000
[ 46.359969] r8:c0107fc4
[ 46.362524] r7:edf53f80
[ 46.363592] r6:b6de3000
[ 46.366147] r5:ee1c6a00
[ 46.367214] r4:00020000
[ 46.369782] [<c021fb44>] (vfs_read) from [<c0220a4c>] (SyS_read+0x4c/0xa8)
[ 46.376672] r8:c0107fc4
[ 46.379045] r7:00020000
[ 46.381600] r6:b6de3000
[ 46.382667] r5:ee1c6a00
[ 46.385222] r4:ee1c6a00
[ 46.387817] [<c0220a00>] (SyS_read) from [<c0107e20>] (ret_fast_syscall+0x0/0x1c)
[ 46.395314] r7:00000003
[ 46.397687] r6:b6de3000
[ 46.400243] r5:00020000
[ 46.401310] r4:00020000
Cc: <stable@vger.kernel.org>
Fixes: 26c696c678c4 ("USB: Chipidea: rename struct
ci13xxx variables from udc to ci")
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Some code (all error handling) submits CDBs that are allocated
on the stack. This breaks with CB/CBI code that tries to create
URB directly from SCSI command buffer - which happens to be in
vmalloced memory with vmalloced kernel stacks.
Let's make copy of the command in usb_stor_CB_transport.
Signed-off-by: Petr Vandrovec <petr@vandrovec.name>
Cc: stable <stable@vger.kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The davinci ohci driver name (currently "ohci") is too generic.
To be consistent with other usb dirvers, append the "-da8xx" postfix
to the name.
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The DA8xx OTG PHY has some issues when it is forced in host or
peripheral mode. Actually, most of the time, OTG is the best mode
because host or peripheral mode are only required for hardware that
miss some circuitry.
Init the PHY mode OTG mode by default.
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The first attempt to read a register may fail because the clock may not
be enabled, and then the probe of musb driver will fail.
Call clk_prepare_enable() before the first register read.
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This adds DT support for TI DA8xx/OMAP-L1x/AM17xx/AM18xx MUSB driver
Signed-off-by: Petr Kulhavy <petr@barix.com>
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This adds the function musb_get_mode() to get the DT property "dr_mode"
Signed-off-by: Petr Kulhavy <petr@barix.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Tested-by: David Lechner <david@lechnology.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There is no point having this complaint to be dev_err as it is just adding
noise to bootlog.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replace pr_err with dev_err to print also device name.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Don't complain on -EPROBE_DEFER when initializing controller,
the driver probe will be retried later.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The sunxi musb has a bug where sometimes it will generate a babble
error on device disconnect instead of a disconnect irq. When this
happens the musb-controller switches from host mode to device mode
(it clears MUSB_DEVCTL_SESSION and sets MUSB_DEVCTL_BDEVICE) and
gets stuck in this state.
Clearing this requires reporting Vbus low for 200 or more ms, but
on some devices Vbus is simply always high (host-only mode, no Vbus
control).
This commit adds a sunxi_musb_recover() callback which makes
sunxi_musb_work call phy_set_mode with the current mode, which
will force end the current session.
This fixes the musb controller getting stuck in this state on systems
without Vbus control; and also fixes the need to unplug the usb-b ->
usb-a cable to get out of this state on systems with Vbus control.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The musb core already handles babble interrupts, so the sunxi glue
having its own custom handling is redundant.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove comments about resume signalling being stopped from
GetPortStatus, something which is no longer the case.
Fixes: 8ed1fb790ea2 ("usb: musb: finish suspend/reset work...")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We should use new API dma_pool_zalloc instead of dma_pool_alloc/memset.
Signed-off-by: Shashi Bhusan <shashibhushan4u123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Read urbs are submitted back only on success, causing read pipe
running out of urbs after few errors. No more characters can
be read from tty device then until it is reopened and no errors
are reported.
Fix that by always submitting urbs back and clearing stall on
-EPIPE.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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is_int_ep is used only in acm_probe, no need to store it in device data.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Clearing stall needs pipe descriptor, store it in acm structure.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Move urb killing code into separate function and use it
instead of copying that code pattern over.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pointer to usb_device is already stored in acm structure.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use only one tab to indent dev_{(v)dbg,err} parameters.
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: patches for v4.10 merge window
One big merge this time with a total of 166 non-merge commits.
Most of the work, by far, is on dwc2 this time (68.2%) with dwc3 a far
second (22.5%). The remaining 9.3% are scattered on gadget drivers.
The most important changes for dwc2 are the peripheral side DMA support
implemented by Synopsys folks and support for the new IOT dwc2
compatible core from Synopsys.
In dwc3 land we have support for high-bandwidth, high-speed isochronous
endpoints and some non-critical fixes for large scatter lists.
Apart from these, we have our usual set of cleanups, non-critical fixes,
etc.
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Add check for NULL before calling kthread_stop().
There were cases in which gserial_console_exit() was called, but the
console thread was not started. This resulted in an invalid
kthread_stop(NULL) call.
Without this, the following Oops may occur:
BUG: unable to handle kernel
NULL pointer dereference at 0000000000000018
IP: [<ffffffffb3ca1166>] kthread_stop+0x16/0x110
...
CPU: 2 PID: 853 Comm: rmmod Not tainted 4.9.0-rc5 #3
Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z77 Extreme3, BIOS P1.50 07/11/2013
task: ffff880419f6a100 task.stack: ffffc90002e8c000
RIP: 0010:[<ffffffffb3ca1166>] [<ffffffffb3ca1166>] kthread_stop+0x16/0x110
RSP: 0018:ffffc90002e8fdb0 EFLAGS: 00010286
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000246 RDI: 0000000000000000
RBP: ffffc90002e8fdc8 R08: 0000000000000000 R09: 0000000000000001
R10: 000000000000019d R11: 000000000000001f R12: 0000000000000000
R13: ffff88041b8d8400 R14: 0000000000000001 R15: 000055fd59f5a1e0
FS: 00007f82500be700(0000) GS:ffff88042f280000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000018 CR3: 000000041bee2000 CR4: 00000000001406e0
Stack:
0000000000000000 ffffffffc0b8e720 ffff88041b8d8400 ffffc90002e8fdf0
ffffffffc0b8bb52 ffff88041a106300 0000000000000001 ffff880419fc2ea8
ffffc90002e8fe08 ffffffffc0aed749 ffffffffc0aef600 ffffc90002e8fe20
Call Trace:
[<ffffffffc0b8bb52>] gserial_free_line+0x72/0xb0 [u_serial]
[<ffffffffc0aed749>] acm_free_instance+0x19/0x30 [usb_f_acm]
[<ffffffffc0b01b40>] usb_put_function_instance+0x20/0x30 [libcomposite]
[<ffffffffc04a603b>] gs_unbind+0x3b/0x70 [g_serial]
[<ffffffffc0b018d1>] __composite_unbind+0x61/0xb0 [libcomposite]
[<ffffffffc0b01933>] composite_unbind+0x13/0x20 [libcomposite]
[<ffffffffc08ef1ad>] usb_gadget_remove_driver+0x3d/0x90 [udc_core]
[<ffffffffc08ef26e>] usb_gadget_unregister_driver+0x6e/0xc0 [udc_core]
[<ffffffffc0aff6d2>] usb_composite_unregister+0x12/0x20 [libcomposite]
[<ffffffffc04a6268>] cleanup+0x10/0xda8 [g_serial]
[<ffffffffb3d0c0c2>] SyS_delete_module+0x192/0x270
[<ffffffffb3c032a0>] ? exit_to_usermode_loop+0x90/0xb0
[<ffffffffb4228a3b>] entry_SYSCALL_64_fastpath+0x1e/0xad
Code: 89 c6 e8 6e ff ff ff 48 89 df e8 06 bd fd ff 5b 5d c3 0f 1f 00 0f 1f 44 00 00 55 48 89 e5 41 55 41 54 49 89 fc 53 0f 1f 44 00 00 <f0> 41 ff 44 24 18 4c 89 e7 e8 bc f1 ff ff 48 85 c0 48 89 c3 74
RIP [<ffffffffb3ca1166>] kthread_stop+0x16/0x110
RSP <ffffc90002e8fdb0>
CR2: 0000000000000018
---[ end trace 5b3336a407e1698c ]---
Signed-off-by: Felix Hädicke <felixhaedicke@web.de>
Tested-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The dma mask is correctly set up by the DT probe function, no
need to override it any more.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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The dma ops for dwc3 devices are not set properly. So, use a
physical device sysdev, which will be inherited from parent,
to set the hardware / firmware parameters like dma.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Tested-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Building with W=1, we get a warning about harmless empty statements:
drivers/usb/dwc3/ep0.c: In function 'dwc3_ep0_handle_intf':
drivers/usb/dwc3/ep0.c:491:4: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
Instead of adding empty braces which would introduce checkpatch.pl
warnings, we're just removing the code which doesn't do anything and
making sure we return 0 so USBCV tool is happy.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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