| Age | Commit message (Collapse) | Author | Files | Lines |
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ktime is a union because the initial implementation stored the time in
scalar nanoseconds on 64 bit machine and in a endianess optimized timespec
variant for 32bit machines. The Y2038 cleanup removed the timespec variant
and switched everything to scalar nanoseconds. The union remained, but
become completely pointless.
Get rid of the union and just keep ktime_t as simple typedef of type s64.
The conversion was done with coccinelle and some manual mopping up.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.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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We want the USB fixes in here as well.
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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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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Now that usb_endpoint_maxp() only returns the lowest
11 bits from wMaxPacketSize, we can remove the &
operation from this driver.
Cc: Peter Chen <Peter.Chen@nxp.com>
Cc: <linux-usb@vger.kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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We have introduced a helper to calculate multiplier
value from wMaxPacketSize. Start using it.
Acked-by: Peter Chen <Peter.Chen@nxp.com>
Cc: <linux-usb@vger.kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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After commit b09b5224fe86 ("usb: chipidea: implement platform shutdown
callback") and commit 43a404577a93 ("usb: chipidea: host: set host to
be null after hcd is freed") a NULL pointer dereference is caused
on i.MX23 during shutdown. So ensure that role is set to CI_ROLE_END and
we finish interrupt handling before the hcd is deallocated. This avoids
the NULL pointer dereference.
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Fixes: b09b5224fe86 ("usb: chipidea: implement platform shutdown callback")
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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According to Documentation/CodingStyle:
"The preferred form for passing a size of a struct is the following:
p = kmalloc(sizeof(*p), ...);
"
, so do as suggested to improve readability.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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No need to split the dma_pool_zalloc() line into two as it can
perfectly fit into a single line.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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We can make the code simpler by using dma_pool_zalloc() instead
of calling dma_pool_alloc() and then a memset().
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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The Chipidea EHCI core seems to behave sanely and doesn't need
the IO watchdog. This kills off 10 non-deferrable wakeup events
per second when the controller is otherwise idle.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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This driver make assumptions about the value of the direction flags.
So better use them in comparisons to improve the readability.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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imx usb over current polarity is low active by default, with
over-current-active-high property added, user can config it to be high
active. Meanwhile keep this setting unchanged for existing platforms
so new platform must set the right value for active low by its usbmisc
init function if over current is enabled.
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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The endpoint fifo is already flushed in _ep_nuke so there
is no need to flush it twice.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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Since there should be a write barrier before every call of
hw_ep_prime we could move it into hw_ep_prime.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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Problems with the signal integrity of the high speed USB data lines or
noise on reference ground lines can cause the i.MX6 USB controller to
violate USB specs and exhibit unexpected behavior.
It was observed that USBi_UI interrupts were triggered first and when
isr_setup_status_phase was called, ci->status was NULL, which lead to a
NULL pointer dereference kernel panic.
This patch fixes the kernel panic, emits a warning once and returns
-EPIPE to halt the device and let the host get stalled.
It also adds a comment to point people, who are experiencing this issue,
to their USB hardware design.
Cc: <stable@vger.kernel.org> #4.1+
Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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When the controller is configured to be dual role and it's in host mode,
if bind udc and gadgt driver, those gadget operations will do gadget
disconnect and finally pull down DP line, which will break host function.
Cc: <stable@vger.kernel.org> # 4.1+
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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Chipidea driver has been updated a lot, and more functions are supported,
update Kconfig help text accordingly.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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For each platform devices which is created by device tree, the default
DMA mask is set by of_dma_configure when the device are created. So
delete the redundant code at driver.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH:
"Here is the big USB patchset for 4.6-rc1.
The normal mess is here, gadget and xhci fixes and updates, and lots
of other driver updates and cleanups as well. Full details are in the
shortlog.
All have been in linux-next for a while with no reported issues"
* tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (266 commits)
USB: core: let USB device know device node
usb: devio: Add ioctl to disallow detaching kernel USB drivers.
usb: gadget: f_acm: Fix configfs attr name
usb: udc: lpc32xx: remove USB PLL and USB OTG clock management
usb: udc: lpc32xx: remove direct access to clock controller registers
usb: udc: lpc32xx: switch to clock prepare/unprepare model
usb: renesas_usbhs: gadget: fix giveback status code in usbhsg_pipe_disable()
usb: gadget: renesas_usb3: Use ARCH_RENESAS
usb: dwc2: Fix issues in dwc2_complete_non_isoc_xfer_ddma()
usb: dwc2: Add support for Lantiq ARX and XRX SoCs
usb: phy: generic: Handle late registration of gadget
usb: gadget: bdc_udc: fix race condition in bdc_udc_exit()
usb: musb: core: added missing const qualifier to musb_hdrc_platform_data::config
usb: dwc2: Move host-specific core functions into hcd.c
usb: dwc2: Move register save and restore functions
usb: dwc2: Use kmem_cache_free()
usb: dwc2: host: If using uframe scheduler, end splits better
usb: dwc2: host: Totally redo the microframe scheduler
usb: dwc2: host: Properly set even/odd frame
usb: dwc2: host: Add dwc2_hcd_get_future_frame_number() call
...
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B-device detects that bus is idle for more than TB_AIDL_BDIS min and
begins HNP by turning off pullup on DP, this allows the bus to discharge
to the SE0 state. This timer was missed and failed with PET test:
6.8.5 B-UUT HNP of USB OTG and EH automated compliance plan v1.2,
this patch is to fix this timing issue.
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
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Enable HNP polling support for chipidea gadget and allocate memory
for host request flag when otg fsm init.
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
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Set host_request_flag if the current peripheral wants to take host role
via changing a_bus_req or b_bus_req by user application.
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
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Since gadget driver will handle this request, so controller driver bypass
it.
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next
Peter writes:
- Add platform interface to choose ttctrl.ttha
- Some tiny improvements
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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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Avoid printing an error if adding the device failes with return
value EPROBE_DEFFER. This may happen e.g. due to missing GPIO for
the vbus-supply regulator.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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This reverts commit e765bfb73ff7.
In the most of cases, we only use one transaction per frame and the
frame rate may be high, If the platforms want to support multiple
transactions but less frame rate cases like [1] and [2], it can set
"non-zero-ttctrl-ttha" at dts.
[1] http://www.spinics.net/lists/linux-usb/msg123125.html
[2] http://www.spinics.net/lists/linux-usb/msg118679.html
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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In chipidea IP RTL, there is a very limited design for siTD, the detail
like below:
There is no Max Packet Size at siTD, so it uses one constant for both
Max Packet Size for packet and the packet size for the last transaction
when considering schedule.
If the ttctrl.ttha does not match against Hub Address field in siTD,
this constant is 188 bytes, else this constant is 1023 bytes.
If the ttctrl.ttha is non-zero value, RTL will use 188 as this constant,
so it will lose the data if the packet size is larger than 188 bytes, eg,
if we playback a wav which format is 48khz, 16 bits, 2 channels, the
packet size will be 192bytes, but the controller will only send 188 bytes
for this packet, the noise will be heared using USB audio card.
The use case is single transaction, but higher frame rate.
If the ttctr.ttha is zero value, we can send 1023 bytes within one
transaction, but the controller will not accept the coming tranaction
if it considers the schedule time is less than 1023 bytes. So the
limitation is we can't schedule as many as transactions within frame.
If the total bytes is already 256 bytes for previous transactions within
frame, it can't accept another transaction. The use case is multiple
transactions, but less frame rate.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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retval is assigned to be -EOVERFLOW but is overwritten later before
it's used, remove this unused value assignment.
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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Until now the imx23 uses the imx27 platform flag. But the
imx23 needs the flag CI_HDRC_TURN_VBUS_EARLY_ON, too. So
fix this by adding a separate platform flag.
Suggested-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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If we use USB ID pin as wakeup source, and there is a USB block
device on this USB OTG (ID) cable, the system will be deadlock
after system resume.
The root cause for this problem is: the workqueue ci_otg may try
to remove hcd before the driver resume has finished, and hcd will
disconnect the device on it, then, it will call device_release_driver,
and holds the device lock "dev->mutex", but it is never unlocked since
it waits workqueue writeback to run to flush the block information, but
the workqueue writeback is freezable, it is not thawed before driver
resume has finished.
When the driver (device: sd 0:0:0:0:) resume goes to dpm_complete, it
tries to get its device lock "dev->mutex", but it can't get it forever,
then the deadlock occurs. Below call stacks show the situation.
So, in order to fix this problem, we need to change workqueue ci_otg
as freezable, then the work item in this workqueue will be run after
driver's resume, this workqueue will not be blocked forever like above
case since the workqueue writeback has been thawed too.
Tested at: i.mx6qdl-sabresd and i.mx6sx-sdb.
[ 555.178869] kworker/u2:13 D c07de74c 0 826 2 0x00000000
[ 555.185310] Workqueue: ci_otg ci_otg_work
[ 555.189353] Backtrace:
[ 555.191849] [<c07de4fc>] (__schedule) from [<c07dec6c>] (schedule+0x48/0xa0)
[ 555.198912] r10:ee471ba0 r9:00000000 r8:00000000 r7:00000002 r6:ee470000 r5:ee471ba4
[ 555.206867] r4:ee470000
[ 555.209453] [<c07dec24>] (schedule) from [<c07e2fc4>] (schedule_timeout+0x15c/0x1e0)
[ 555.217212] r4:7fffffff r3:edc2b000
[ 555.220862] [<c07e2e68>] (schedule_timeout) from [<c07df6c8>] (wait_for_common+0x94/0x144)
[ 555.229140] r8:00000000 r7:00000002 r6:ee470000 r5:ee471ba4 r4:7fffffff
[ 555.235980] [<c07df634>] (wait_for_common) from [<c07df790>] (wait_for_completion+0x18/0x1c)
[ 555.244430] r10:00000001 r9:c0b5563c r8:c0042e48 r7:ef086000 r6:eea4372c r5:ef131b00
[ 555.252383] r4:00000000
[ 555.254970] [<c07df778>] (wait_for_completion) from [<c0043cb8>] (flush_work+0x19c/0x234)
[ 555.263177] [<c0043b1c>] (flush_work) from [<c0043fac>] (flush_delayed_work+0x48/0x4c)
[ 555.271106] r8:ed5b5000 r7:c0b38a3c r6:eea439cc r5:eea4372c r4:eea4372c
[ 555.277958] [<c0043f64>] (flush_delayed_work) from [<c00eae18>] (bdi_unregister+0x84/0xec)
[ 555.286236] r4:eea43520 r3:20000153
[ 555.289885] [<c00ead94>] (bdi_unregister) from [<c02c2154>] (blk_cleanup_queue+0x180/0x29c)
[ 555.298250] r5:eea43808 r4:eea43400
[ 555.301909] [<c02c1fd4>] (blk_cleanup_queue) from [<c0417914>] (__scsi_remove_device+0x48/0xb8)
[ 555.310623] r7:00000000 r6:20000153 r5:ededa950 r4:ededa800
[ 555.316403] [<c04178cc>] (__scsi_remove_device) from [<c0415e90>] (scsi_forget_host+0x64/0x68)
[ 555.325028] r5:ededa800 r4:ed5b5000
[ 555.328689] [<c0415e2c>] (scsi_forget_host) from [<c0409828>] (scsi_remove_host+0x78/0x104)
[ 555.337054] r5:ed5b5068 r4:ed5b5000
[ 555.340709] [<c04097b0>] (scsi_remove_host) from [<c04cdfcc>] (usb_stor_disconnect+0x50/0xb4)
[ 555.349247] r6:ed5b56e4 r5:ed5b5818 r4:ed5b5690 r3:00000008
[ 555.355025] [<c04cdf7c>] (usb_stor_disconnect) from [<c04b3bc8>] (usb_unbind_interface+0x78/0x25c)
[ 555.363997] r8:c13919b4 r7:edd3c000 r6:edd3c020 r5:ee551c68 r4:ee551c00 r3:c04cdf7c
[ 555.371892] [<c04b3b50>] (usb_unbind_interface) from [<c03dc248>] (__device_release_driver+0x8c/0x118)
[ 555.381213] r10:00000001 r9:edd90c00 r8:c13919b4 r7:ee551c68 r6:c0b546e0 r5:c0b5563c
[ 555.389167] r4:edd3c020
[ 555.391752] [<c03dc1bc>] (__device_release_driver) from [<c03dc2fc>] (device_release_driver+0x28/0x34)
[ 555.401071] r5:edd3c020 r4:edd3c054
[ 555.404721] [<c03dc2d4>] (device_release_driver) from [<c03db304>] (bus_remove_device+0xe0/0x110)
[ 555.413607] r5:edd3c020 r4:ef17f04c
[ 555.417253] [<c03db224>] (bus_remove_device) from [<c03d8128>] (device_del+0x114/0x21c)
[ 555.425270] r6:edd3c028 r5:edd3c020 r4:ee551c00 r3:00000000
[ 555.431045] [<c03d8014>] (device_del) from [<c04b1560>] (usb_disable_device+0xa4/0x1e8)
[ 555.439061] r8:edd3c000 r7:eded8000 r6:00000000 r5:00000001 r4:ee551c00
[ 555.445906] [<c04b14bc>] (usb_disable_device) from [<c04a8e54>] (usb_disconnect+0x74/0x224)
[ 555.454271] r9:edd90c00 r8:ee551000 r7:ee551c68 r6:ee551c9c r5:ee551c00 r4:00000001
[ 555.462156] [<c04a8de0>] (usb_disconnect) from [<c04a8fb8>] (usb_disconnect+0x1d8/0x224)
[ 555.470259] r10:00000001 r9:edd90000 r8:ee471e2c r7:ee551468 r6:ee55149c r5:ee551400
[ 555.478213] r4:00000001
[ 555.480797] [<c04a8de0>] (usb_disconnect) from [<c04ae5ec>] (usb_remove_hcd+0xa0/0x1ac)
[ 555.488813] r10:00000001 r9:ee471eb0 r8:00000000 r7:ef3d9500 r6:eded810c r5:eded80b0
[ 555.496765] r4:eded8000
[ 555.499351] [<c04ae54c>] (usb_remove_hcd) from [<c04d4158>] (host_stop+0x28/0x64)
[ 555.506847] r6:eeb50010 r5:eded8000 r4:eeb51010
[ 555.511563] [<c04d4130>] (host_stop) from [<c04d09b8>] (ci_otg_work+0xc4/0x124)
[ 555.518885] r6:00000001 r5:eeb50010 r4:eeb502a0 r3:c04d4130
[ 555.524665] [<c04d08f4>] (ci_otg_work) from [<c00454f0>] (process_one_work+0x194/0x420)
[ 555.532682] r6:ef086000 r5:eeb502a0 r4:edc44480
[ 555.537393] [<c004535c>] (process_one_work) from [<c00457b0>] (worker_thread+0x34/0x514)
[ 555.545496] r10:edc44480 r9:ef086000 r8:c0b1a100 r7:ef086034 r6:00000088 r5:edc44498
[ 555.553450] r4:ef086000
[ 555.556032] [<c004577c>] (worker_thread) from [<c004bab4>] (kthread+0xdc/0xf8)
[ 555.563268] r10:00000000 r9:00000000 r8:00000000 r7:c004577c r6:edc44480 r5:eddc15c0
[ 555.571221] r4:00000000
[ 555.573804] [<c004b9d8>] (kthread) from [<c000fef0>] (ret_from_fork+0x14/0x24)
[ 555.581040] r7:00000000 r6:00000000 r5:c004b9d8 r4:eddc15c0
[ 553.429383] sh D c07de74c 0 694 691 0x00000000
[ 553.435801] Backtrace:
[ 553.438295] [<c07de4fc>] (__schedule) from [<c07dec6c>] (schedule+0x48/0xa0)
[ 553.445358] r10:edd3c054 r9:edd3c078 r8:edddbd50 r7:edcbbc00 r6:c1377c34 r5:60000153
[ 553.453313] r4:eddda000
[ 553.455896] [<c07dec24>] (schedule) from [<c07deff8>] (schedule_preempt_disabled+0x10/0x14)
[ 553.464261] r4:edd3c058 r3:0000000a
[ 553.467910] [<c07defe8>] (schedule_preempt_disabled) from [<c07e0bbc>] (mutex_lock_nested+0x1a0/0x3e8)
[ 553.477254] [<c07e0a1c>] (mutex_lock_nested) from [<c03e927c>] (dpm_complete+0xc0/0x1b0)
[ 553.485358] r10:00561408 r9:edd3c054 r8:c0b4863c r7:edddbd90 r6:c0b485d8 r5:edd3c020
[ 553.493313] r4:edd3c0d0
[ 553.495896] [<c03e91bc>] (dpm_complete) from [<c03e9388>] (dpm_resume_end+0x1c/0x20)
[ 553.503652] r9:00000000 r8:c0b1a9d0 r7:c1334ec0 r6:c1334edc r5:00000003 r4:00000010
[ 553.511544] [<c03e936c>] (dpm_resume_end) from [<c0079894>] (suspend_devices_and_enter+0x158/0x504)
[ 553.520604] r4:00000000 r3:c1334efc
[ 553.524250] [<c007973c>] (suspend_devices_and_enter) from [<c0079e74>] (pm_suspend+0x234/0x2cc)
[ 553.532961] r10:00561408 r9:ed6b7300 r8:00000004 r7:c1334eec r6:00000000 r5:c1334ee8
[ 553.540914] r4:00000003
[ 553.543493] [<c0079c40>] (pm_suspend) from [<c0078a6c>] (state_store+0x6c/0xc0)
[ 555.703684] 7 locks held by kworker/u2:13/826:
[ 555.708140] #0: ("%s""ci_otg"){++++.+}, at: [<c0045484>] process_one_work+0x128/0x420
[ 555.716277] #1: ((&ci->work)){+.+.+.}, at: [<c0045484>] process_one_work+0x128/0x420
[ 555.724317] #2: (usb_bus_list_lock){+.+.+.}, at: [<c04ae5e4>] usb_remove_hcd+0x98/0x1ac
[ 555.732626] #3: (&dev->mutex){......}, at: [<c04a8e28>] usb_disconnect+0x48/0x224
[ 555.740403] #4: (&dev->mutex){......}, at: [<c04a8e28>] usb_disconnect+0x48/0x224
[ 555.748179] #5: (&dev->mutex){......}, at: [<c03dc2f4>] device_release_driver+0x20/0x34
[ 555.756487] #6: (&shost->scan_mutex){+.+.+.}, at: [<c04097d0>] scsi_remove_host+0x20/0x104
Cc: <stable@vger.kernel.org> #v3.14+
Cc: Jun Li <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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The write value is 8bit, but currently writing a larger number (eg a doubled
digit) is not errored but instead gets cast and sets off an action probably
undesired.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In case of error, the function usb_phy_generic_register()
returns ERR_PTR() and never returns NULL. The NULL test in
the return value check should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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The write value is 8bit, but currently writing a larger number
(eg a doubled digit) is not errored but instead gets cast and
sets off an action probably undesired.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
(Change the style of commit log to fix checkpatch.pl warning)
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Use list_for_each_entry() instead of list_for_each() to simplify
the code.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild updates from Michal Marek:
- Make <modname>-m in makefiles work like <modname>-y and fix the
fallout
- Minor genksyms fix
- Fix race with make -j install modules_install
- Move -Wsign-compare from make W=1 to W=2
- Other minor fixes
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: Demote 'sign-compare' warning to W=2
Makefile: revert "Makefile: Document ability to make file.lst and file.S" partially
kbuild: Do not run modules_install and install in paralel
genksyms: Handle string literals with spaces in reference files
fixdep: constify strrcmp arguments
ath10k: Fix build with CONFIG_THERMAL=m
Revert "drm: Hack around CONFIG_AGP=m build failures"
kbuild: Allow to specify composite modules with modname-m
staging/ad7606: Actually build the interface modules
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Directly manipulate the controller regsiter to suspend the usb bus
for HNP is not the proper way, this should be done through the usbcore
by usb autosuspend. So to start HNP, autosuspend support should be
added for OTG devices interface driver if it's not enabled.
Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
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Set ci->hcd and ci->otg.host to be null in host_stop since the
hcd already freed.
Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
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call to of_find_property() before of_property_read_u32() is unnecessary.
of_property_read_u32() anyway calls to of_find_property() only.
Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
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disable wakeup irq during shutdown, otherwise kexec fails for
kernels that setup irq handlers before resetting the hardware
Signed-off-by: Andreas Fenkart <andreas.fenkart@dev.digitalstrom.org>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
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Since this configuration option has deleted, cleans up all
its references.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Reported-by: Valentin Rothberg <valentinrothberg@gmail.com>
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Since we have dynamic debug support, delete static debug for chipidea
Signed-off-by: Peter Chen <peter.chen@freescale.com>
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Since we need to mount debugfs to show/store the things we
want to debug, it is duplicated to add another configuration
to enable it. Meanwhile, with CONFIG_USB_CHIPIDEA_DEBUG,
we can't support chipidea debugfs at runtime.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Cc: Jun Li <jun.li@freescale.com>
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_hardware_enqueue() didn't check for errors when using
add_td_to_list() which can fail if dma_pool_alloc fails, thus
causing a kernel panic when lastnode->ptr is NULL.
Signed-off-by: Felipe F. Tonello <eu@felipetonello.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
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Update comments to reflect current state of functions.
Signed-off-by: Felipe F. Tonello <eu@felipetonello.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
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This patch sets the AHBMODE to allow for posted data writes. This
results in higher performance.
Signed-off-by: Andy Gross <agross@codeaurora.org>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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