Commit Graph

15537 Commits

Author SHA1 Message Date
Geliang Tang
4e5d7a82d3 usb: host: u132-hcd: use list_for_each_entry
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>
2016-01-24 20:55:33 -08:00
Geliang Tang
7b1585f209 usb: host: oxu210hp-hcd: use list_for_each_entry_safe
Use list_for_each_entry_safe() instead of list_for_each_safe() to
simplify the code.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:55:33 -08:00
Geliang Tang
553c236057 usb: host: max3421-hcd: use list_for_each_entry*
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>
2016-01-24 20:55:33 -08:00
Geliang Tang
2f4c8e554b usb: host: fotg210: use list_for_each_entry_safe
Use list_for_each_entry_safe() instead of list_for_each_safe() to
simplify the code.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:55:33 -08:00
Jia-Ju Bai
e3e2e36c10 ehci-hcd: Disable memory-write-invalidate when the driver is removed
The driver calls pci_set_mwi to enable memory-write-invalidate when it
is initialized, but does not call pci_clear_mwi when it is removed. Many
other drivers calls pci_clear_mwi when pci_set_mwi is called, such as
r8169, 8139cp and e1000.

This patch adds a function "ehci_pci_remove" to remove the pci driver.
This function calls pci_clear_mwi and usb_hcd_pci_remove, which can
fix the problem.

Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:51:34 -08:00
Jia-Ju Bai
d8ff463a4e ehci-hcd: Cleanup memory resources when ehci_halt fails
The driver calls ehci_mem_init to allocate memory resources.
But these resources are not freed when ehci_halt fails.

This patch adds "ehci_mem_cleanup" in error handling code to fix this problem.

Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:51:34 -08:00
Azriel Samson
4bb3cad712 usb: host: ehci-msm: Register usb shutdown function
Registering usb_hcd_platform_shutdown to be called during
shutdown. This is a generic function that performs the
generic host stack's shutdown. It ensures that USB
operations do not continue while kexec boots a new kernel.

Signed-off-by: Azriel Samson <asamson@codeaurora.org>
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:51:18 -08:00
Jack Pham
e8f55b9148 usb: host: ehci-msm: Fix register initialization
The default value for the 'transceiver select' field of
the PORTSC register may not always be correct. Previously
the phy-msm-usb driver would do this for us, but since
ehci-msm can now be instantiated standalone without any PHY
driver, the register needs to be explicitly initialized to
ULPI mode to properly communicate with the PHY.

This is not readily apparent, as firmware or bootloader code
also happen to pre-initialize this for us. However, it can
manifest when performing a driver unbind/rebind as follows:

 cd /sys/bus/platform/drivers/msm_hsusb_host
 echo QCOM8040:00 > unbind
 echo QCOM8040:00 > bind

The EHCI core executes a controller reset as part of this,
and as a result the register in question would revert to
its default state and must be re-initialized properly.
Furthermore this may be useful in the future when adding
PM suspend/resume support.

Signed-off-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:51:18 -08:00
Jack Pham
f13f0e6560 usb: host: ehci-msm: Add support for ACPI probing
Allow the EHCI MSM driver to probe against an ACPI enumerated
device with ID QCOM8040.

Signed-off-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:51:18 -08:00
Jack Pham
c4398ef609 usb: host: ehci-msm: Remove dependency on OTG PHY
Currently the EHCI MSM driver has a hard dependency to be created
by an OTG layer, namely the phy-msm-usb driver. In some cases or
board configurations we want to allow the EHCI host to be
instantiated without OTG capability. Instead, relax the dependency
on having an OTG PHY being present and call usb_add_hcd() directly.

Signed-off-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:51:18 -08:00
Jack Pham
132f5005ab usb: host: ehci-msm: Allow LS devices to work
Disable the silicon quirk which is normally enabled for HSIC
host mode. This would otherwise prevent low speed devices
from enumerating properly.

Signed-off-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:51:18 -08:00
Rafał Miłecki
adbff3a4f9 USB: bcma: separate code initializing USB 2.0 core
This splits one big probing function into two smaller ones. The main one
is now responsible for the generic stuff: allocating memory & enabling
power using GPIO. The new one contains code that is specific to the USB
2.0 bcma core.
This will allow adding support for the USB 3.0 bcma core (handling XHCI)
in the future.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:37:47 -08:00
Rafał Miłecki
352d9e2ee8 USB: bcma: make helper creating platform dev more generic
Having "bool ohci" argument in bcma_hcd_create_pdev function limited it
to support two cases only (OHCI and EHCI) and put too much logic in it.
Lets make caller pass all required data. This adds few extra arguments
to the function call but will allow us to reuse this code and handle
more cases in the future (e.g. add XHCI support).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:37:47 -08:00
Andy Shevchenko
f8868ed007 usb: core: use kbasename() instead of open-coded variant
kbasename() helper is dedicated to find a last part of the filename or
pathname. USB core uses open-coded variant of that helper.

Replace some lines of code by kbasename() call.

The current users do not have trailing slash and we are on the safe side to
make such change. I dig a history of the code under question up and found the
patch [1] that brought it along with the same to tty layer. The check for
trailing slash looks like copy'n'paste thing and I consider it as redundant.

[1] http://www.kernel.org/pub/linux/kernel//people/akpm/patches/2.5/2.5.69/2.5.69-mm3/broken-out/linus.patch

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:37:47 -08:00
Sriram Dash
6f5429d986 drivers/usb/host/fsl: Port USB EHCI host driver for LS102xA
Change Power architecture specific APIs such as in_be32/out_be32
for registers read/write. Instead using ioread/writebe32 which are
defined for power as well as arm architecture

Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Signed-off-by: Sriram Dash <sriram.dash@freescale.com>
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:37:47 -08:00
Sriram Dash
cae0586104 drivers/usb/host: fsl: Set DMA_MASK of usb platform device
Set DMA_MASK of usb platform device properly.

Signed-off-by: Sriram Dash <sriram.dash@freescale.com>
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:37:47 -08:00
Mathias Nyman
0cdd49a1d1 usb: Support USB 3.1 extended port status request
usb 3.1 extend the hub get-port-status request by adding different
request types. the new request types return 4 additional bytes called
extended port status, these bytes are returned after the regular
portstatus and portchange values.

The extended port status contains a speed ID for the currently used
sublink speed. A table of supported Speed IDs with details about the link
is provided by the hub in the device descriptor BOS SuperSpeedPlus
device capability Sublink Speed Attributes.

Support this new request. Ask for the extended port status after port
reset if hub supports USB 3.1. If link is running at SuperSpeedPlus
set the device speed to USB_SPEED_SUPER_PLUS

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:16:52 -08:00
Mathias Nyman
9508e3b7a7 usb: add device descriptor for usb 3.1 root hub
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:16:52 -08:00
Mathias Nyman
b2316645ca usb: show speed "10000" in sysfs for USB 3.1 SuperSpeedPlus devices
The same way as SuperSpeed devices show "5000" as device speed we wan't to
show "10000" as the default speed for SuperSpeedPlus devices in sysfs.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:16:52 -08:00
Mathias Nyman
5f9c3a668b usb: set USB 3.1 roothub device speed to USB_SPEED_SUPER_PLUS
A hcd roothub that supports HCD_USB31 is running at SuperSpeedPlus speed

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:16:52 -08:00
Mathias Nyman
8a1b2725a6 usb: define USB_SPEED_SUPER_PLUS speed for SuperSpeedPlus USB3.1 devices
Add a new USB_SPEED_SUPER_PLUS device speed, and make sure usb core can
handle the new speed.
In most cases the behaviour is the same as with USB_SPEED_SUPER SuperSpeed
devices. In a few places we add a "Plus" string to inform the user of the
new speed.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 20:16:52 -08:00
Rahul Pathak
73a02d3245 usb: Use memdup_user to reuse the code
Fixing coccicheck warning which recommends to use memdup_user instead
to reimplement its code, using memdup_user simplifies the code

./drivers/usb/core/devio.c:1398:11-18: WARNING opportunity for memdup_user

Signed-off-by: Rahul Pathak <rpathak@visteon.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 19:45:09 -08:00
Chase Metzger
64f10edf07 usb: core: devio.c: Removed unnecessary space
Removed an unnecessary space between a function name and arguments.

Signed-off-by: Chase Metzger <chasemetzger15@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 19:45:09 -08:00
Julia Lawall
fcb42e232a usb: renesas_usbhs: constify usbhs_pkt_handle structures
The usbhs_pkt_handle structures are never modified, so declare them as
const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 19:45:09 -08:00
Vladimir Zapolskiy
9c2863b53f usb: ohci: nxp: clean up included header files
Remove mach/irq.h from the list of included headers, there is no
compilation dependency on this include file, the change is needed
to prevent a compilation failure, when mach/irq.h is removed.

Additionally remove other unneeded includes.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 19:33:20 -08:00
Linus Torvalds
cc673757e2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull final vfs updates from Al Viro:

 - The ->i_mutex wrappers (with small prereq in lustre)

 - a fix for too early freeing of symlink bodies on shmem (they need to
   be RCU-delayed) (-stable fodder)

 - followup to dedupe stuff merged this cycle

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  vfs: abort dedupe loop if fatal signals are pending
  make sure that freeing shmem fast symlinks is RCU-delayed
  wrappers for ->i_mutex access
  lustre: remove unused declaration
2016-01-23 12:24:56 -08:00
Linus Torvalds
79d245327f ARM: SoC support for Tegra platforms for v4.5
Here's a single-SoC topic branch that we've staged separately. Mainly
 because it was hard to sort the branch contents in a way that fit our
 existing branches due to some refactorings.
 
 The code has been in -next for quite a while, but we staged it in arm-soc
 a bit late, which is why we've kept it separate from the other updates
 and are sending it separately here.
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Merge tag 'armsoc-tegra' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC support for Tegra platforms from Olof Johansson:
 "Here's a single-SoC topic branch that we've staged separately.  Mainly
  because it was hard to sort the branch contents in a way that fit our
  existing branches due to some refactorings.

  The code has been in -next for quite a while, but we staged it in
  arm-soc a bit late, which is why we've kept it separate from the other
  updates and are sending it separately here"

* tag 'armsoc-tegra' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: tegra: Add NVIDIA Jetson TX1 Developer Kit support
  arm64: tegra: Add NVIDIA P2597 I/O board support
  arm64: tegra: Add NVIDIA Jetson TX1 support
  arm64: tegra: Add NVIDIA P2571 board support
  arm64: tegra: Add NVIDIA P2371 board support
  arm64: tegra: Add NVIDIA P2595 I/O board support
  arm64: tegra: Add NVIDIA P2530 main board support
  arm64: tegra: Add Tegra210 support
  arm64: tegra: Add NVIDIA Tegra132 Norrin support
  arm64: tegra: Add Tegra132 support
  ARM: tegra: select USB_ULPI from EHCI rather than platform
  ARM: tegra: Ensure entire dcache is flushed on entering LP0/1
  amba: Hide TEGRA_AHB symbol
  soc/tegra: Add Tegra210 support
  soc/tegra: Provide per-SoC Kconfig symbols
2016-01-22 17:30:52 -08:00
Al Viro
5955102c99 wrappers for ->i_mutex access
parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).

Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-01-22 18:04:28 -05:00
Linus Torvalds
30f05309bd More power management and ACPI updates for v4.5-rc1
- Modify the driver core and the USB subsystem to allow USB devices
    to stay suspended over system suspend/resume cycles if they have
    been runtime-suspended already beforehand and fix some bugs on
    top of these changes (Tomeu Vizoso, Rafael Wysocki).
 
  - Update ACPICA to upstream revision 20160108, including updates
    of the ACPICA's copyright notices, a code fixup resulting from
    a regression fix that was necessary in the upstream code only
    (the regression fixed by it has never been present in Linux)
    and a compiler warning fix (Bob Moore, Lv Zheng).
 
  - Fix a recent regression in the cpuidle menu governor that broke
    it on practically all architectures other than x86 and make a
    couple of optimizations on top of that fix (Rafael Wysocki).
 
  - Clean up the selection of cpuidle governors depending on whether
    or not the kernel is configured for tickless systems (Jean Delvare).
 
  - Revert a recent commit that introduced a regression in the ACPI
    backlight driver, address the problem it attempted to fix in a
    different way and revert one more cosmetic change depending on
    the problematic commit (Hans de Goede).
 
  - Add two more ACPI backlight quirks (Hans de Goede).
 
  - Fix a few minor problems in the core devfreq code, clean it up
    a bit and update the MAINTAINERS information related to it
    (Chanwoo Choi, MyungJoo Ham).
 
  - Improve an error message in the ACPI fan driver (Andy Lutomirski).
 
  - Fix a recent build regression in the cpupower tool (Shreyas Prabhu).
 
 /
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Merge tag 'pm+acpi-4.5-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management and ACPI updates from Rafael Wysocki:
 "This includes fixes on top of the previous batch of PM+ACPI updates
  and some new material as well.

  From the new material perspective the most significant are the driver
  core changes that should allow USB devices to stay suspended over
  system suspend/resume cycles if they have been runtime-suspended
  already beforehand.  Apart from that, ACPICA is updated to upstream
  revision 20160108 (cosmetic mostly, but including one fixup on top of
  the previous ACPICA update) and there are some devfreq updates the
  didn't make it before (due to timing).

  A few recent regressions are fixed, most importantly in the cpuidle
  menu governor and in the ACPI backlight driver and some x86 platform
  drivers depending on it.

  Some more bugs are fixed and cleanups are made on top of that.

  Specifics:

   - Modify the driver core and the USB subsystem to allow USB devices
     to stay suspended over system suspend/resume cycles if they have
     been runtime-suspended already beforehand and fix some bugs on top
     of these changes (Tomeu Vizoso, Rafael Wysocki).

   - Update ACPICA to upstream revision 20160108, including updates of
     the ACPICA's copyright notices, a code fixup resulting from a
     regression fix that was necessary in the upstream code only (the
     regression fixed by it has never been present in Linux) and a
     compiler warning fix (Bob Moore, Lv Zheng).

   - Fix a recent regression in the cpuidle menu governor that broke it
     on practically all architectures other than x86 and make a couple
     of optimizations on top of that fix (Rafael Wysocki).

   - Clean up the selection of cpuidle governors depending on whether or
     not the kernel is configured for tickless systems (Jean Delvare).

   - Revert a recent commit that introduced a regression in the ACPI
     backlight driver, address the problem it attempted to fix in a
     different way and revert one more cosmetic change depending on the
     problematic commit (Hans de Goede).

   - Add two more ACPI backlight quirks (Hans de Goede).

   - Fix a few minor problems in the core devfreq code, clean it up a
     bit and update the MAINTAINERS information related to it (Chanwoo
     Choi, MyungJoo Ham).

   - Improve an error message in the ACPI fan driver (Andy Lutomirski).

   - Fix a recent build regression in the cpupower tool (Shreyas
     Prabhu)"

* tag 'pm+acpi-4.5-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  cpuidle: menu: Avoid pointless checks in menu_select()
  sched / idle: Drop default_idle_call() fallback from call_cpuidle()
  cpupower: Fix build error in cpufreq-info
  cpuidle: Don't enable all governors by default
  cpuidle: Default to ladder governor on ticking systems
  time: nohz: Expose tick_nohz_enabled
  ACPICA: Update version to 20160108
  ACPICA: Silence a -Wbad-function-cast warning when acpi_uintptr_t is 'uintptr_t'
  ACPICA: Additional 2016 copyright changes
  ACPICA: Reduce regression fix divergence from upstream ACPICA
  ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Satellite R830
  ACPI / video: Revert "thinkpad_acpi: Use acpi_video_handles_brightness_key_presses()"
  ACPI / video: Document acpi_video_handles_brightness_key_presses() a bit
  ACPI / video: Fix using an uninitialized mutex / list_head in acpi_video_handles_brightness_key_presses()
  ACPI / video: Revert "ACPI / video: driver must be registered before checking for keypresses"
  ACPI / fan: Improve acpi_device_update_power error message
  ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Portege R700
  cpuidle: menu: Fix menu_select() for CPUIDLE_DRIVER_STATE_START == 0
  MAINTAINERS: Add devfreq-event entry
  MAINTAINERS: Add missing git repository and directory for devfreq
  ...
2016-01-20 19:06:49 -08:00
Linus Torvalds
71e4634e00 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
 "The highlights this round include:

   - Introduce configfs support for unlocked configfs_depend_item()
     (krzysztof + andrezej)
   - Conversion of usb-gadget target driver to new function registration
     interface (andrzej + sebastian)
   - Enable qla2xxx FC target mode support for Extended Logins (himansu +
     giridhar)
   - Enable qla2xxx FC target mode support for Exchange Offload (himansu +
     giridhar)
   - Add qla2xxx FC target mode irq affinity notification + selective
     command queuing.  (quinn + himanshu)
   - Fix iscsi-target deadlock in se_node_acl configfs deletion (sagi +
     nab)
   - Convert se_node_acl configfs deletion + se_node_acl->queue_depth to
     proper se_session->sess_kref + target_get_session() usage.  (hch +
     sagi + nab)
   - Fix long-standing race between se_node_acl->acl_kref get and
     get_initiator_node_acl() lookup.  (hch + nab)
   - Fix target/user block-size handling, and make sure netlink reaches
     all network namespaces (sheng + andy)

  Note there is an outstanding bug-fix series for remote I_T nexus port
  TMR LUN_RESET has been posted and still being tested, and will likely
  become post -rc1 material at this point"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (56 commits)
  scsi: qla2xxxx: avoid type mismatch in comparison
  target/user: Make sure netlink would reach all network namespaces
  target: Obtain se_node_acl->acl_kref during get_initiator_node_acl
  target: Convert ACL change queue_depth se_session reference usage
  iscsi-target: Fix potential dead-lock during node acl delete
  ib_srpt: Convert acl lookup to modern get_initiator_node_acl usage
  tcm_fc: Convert acl lookup to modern get_initiator_node_acl usage
  tcm_fc: Wait for command completion before freeing a session
  target: Fix a memory leak in target_dev_lba_map_store()
  target: Support aborting tasks with a 64-bit tag
  usb/gadget: Remove set-but-not-used variables
  target: Remove an unused variable
  target: Fix indentation in target_core_configfs.c
  target/user: Allow user to set block size before enabling device
  iser-target: Fix non negative ERR_PTR isert_device_get usage
  target/fcoe: Add tag support to tcm_fc
  qla2xxx: Check for online flag instead of active reset when transmitting responses
  qla2xxx: Set all queues to 4k
  qla2xxx: Disable ZIO at start time.
  qla2xxx: Move atioq to a different lock to reduce lock contention
  ...
2016-01-20 17:20:53 -08:00
Rafael J. Wysocki
6efd3f8cde Merge branch 'pm-core'
* pm-core:
  driver core: Avoid NULL pointer dereferences in device_is_bound()
  platform: Do not detach from PM domains on shutdown
  USB / PM: Allow USB devices to remain runtime-suspended when sleeping
  PM / sleep: Go direct_complete if driver has no callbacks
  PM / Domains: add setter for dev.pm_domain
  device core: add device_is_bound()
2016-01-21 00:42:59 +01:00
Linus Torvalds
d9569f003c Merge branch 'kbuild' of 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
2016-01-20 09:45:43 -08:00
Linus Torvalds
f689b742f2 powerpc updates for 4.5
- Ground work for the new Power9 MMU from Aneesh Kumar K.V
  - Optimise FP/VMX/VSX context switching from Anton Blanchard
 
  - Various cleanups from Krzysztof Kozlowski, John Ogness, Rashmica Gupta,
    Russell Currey, Gavin Shan, Daniel Axtens, Michael Neuling, Andrew Donnellan
  - Allow wrapper to work on non-english system from Laurent Vivier
  - Add rN aliases to the pt_regs_offset table from Rashmica Gupta
  - Fix module autoload for rackmeter & axonram drivers from Luis de Bethencourt
  - Include KVM guest test in all interrupt vectors from Paul Mackerras
  - Fix DSCR inheritance over fork() from Anton Blanchard
  - Make value-returning atomics & {cmp}xchg* & their atomic_ versions fully ordered from Boqun Feng
  - Print MSR TM bits in oops messages from Michael Neuling
  - Add TM signal return & invalid stack selftests from Michael Neuling
  - Limit EPOW reset event warnings from Vipin K Parashar
  - Remove the Cell QPACE code from Rashmica Gupta
  - Append linux_banner to exception information in xmon from Rashmica Gupta
  - Add selftest to check if VSRs are corrupted from Rashmica Gupta
  - Remove broken GregorianDay() from Daniel Axtens
  - Import Anton's context_switch2 benchmark into selftests from Michael Ellerman
  - Add selftest script to test HMI functionality from Daniel Axtens
  - Remove obsolete OPAL v2 support from Stewart Smith
  - Make enter_rtas() private from Michael Ellerman
  - PPR exception cleanups from Michael Ellerman
  - Add page soft dirty tracking from Laurent Dufour
  - Add support for Nvlink NPUs from Alistair Popple
  - Add support for kexec on 476fpe from Alistair Popple
  - Enable kernel CPU dlpar from sysfs from Nathan Fontenot
  - Copy only required pieces of the mm_context_t to the paca from Michael Neuling
  - Add a kmsg_dumper that flushes OPAL console output on panic from Russell Currey
  - Implement save_stack_trace_regs() to enable kprobe stack tracing from Steven Rostedt
  - Add HWCAP bits for Power9 from Michael Ellerman
  - Fix _PAGE_PTE breaking swapoff from Aneesh Kumar K.V
  - Fix _PAGE_SWP_SOFT_DIRTY breaking swapoff from Hugh Dickins
  - scripts/recordmcount.pl: support data in text section on powerpc from Ulrich Weigand
  - Handle R_PPC64_ENTRY relocations in modules from Ulrich Weigand
 
  - cxl: Fix possible idr warning when contexts are released from Vaibhav Jain
  - cxl: use correct operator when writing pcie config space values from Andrew Donnellan
  - cxl: Fix DSI misses when the context owning task exits from Vaibhav Jain
  - cxl: fix build for GCC 4.6.x from Brian Norris
  - cxl: use -Werror only with CONFIG_PPC_WERROR from Brian Norris
  - cxl: Enable PCI device ID for future IBM CXL adapter from Uma Krishnan
 
  - Freescale updates from Scott: Highlights include moving QE code out of
    arch/powerpc (to be shared with arm), device tree updates, and minor fixes.
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Merge tag 'powerpc-4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Core:
   - Ground work for the new Power9 MMU from Aneesh Kumar K.V
   - Optimise FP/VMX/VSX context switching from Anton Blanchard

  Misc:
   - Various cleanups from Krzysztof Kozlowski, John Ogness, Rashmica
     Gupta, Russell Currey, Gavin Shan, Daniel Axtens, Michael Neuling,
     Andrew Donnellan
   - Allow wrapper to work on non-english system from Laurent Vivier
   - Add rN aliases to the pt_regs_offset table from Rashmica Gupta
   - Fix module autoload for rackmeter & axonram drivers from Luis de
     Bethencourt
   - Include KVM guest test in all interrupt vectors from Paul Mackerras
   - Fix DSCR inheritance over fork() from Anton Blanchard
   - Make value-returning atomics & {cmp}xchg* & their atomic_ versions
     fully ordered from Boqun Feng
   - Print MSR TM bits in oops messages from Michael Neuling
   - Add TM signal return & invalid stack selftests from Michael Neuling
   - Limit EPOW reset event warnings from Vipin K Parashar
   - Remove the Cell QPACE code from Rashmica Gupta
   - Append linux_banner to exception information in xmon from Rashmica
     Gupta
   - Add selftest to check if VSRs are corrupted from Rashmica Gupta
   - Remove broken GregorianDay() from Daniel Axtens
   - Import Anton's context_switch2 benchmark into selftests from
     Michael Ellerman
   - Add selftest script to test HMI functionality from Daniel Axtens
   - Remove obsolete OPAL v2 support from Stewart Smith
   - Make enter_rtas() private from Michael Ellerman
   - PPR exception cleanups from Michael Ellerman
   - Add page soft dirty tracking from Laurent Dufour
   - Add support for Nvlink NPUs from Alistair Popple
   - Add support for kexec on 476fpe from Alistair Popple
   - Enable kernel CPU dlpar from sysfs from Nathan Fontenot
   - Copy only required pieces of the mm_context_t to the paca from
     Michael Neuling
   - Add a kmsg_dumper that flushes OPAL console output on panic from
     Russell Currey
   - Implement save_stack_trace_regs() to enable kprobe stack tracing
     from Steven Rostedt
   - Add HWCAP bits for Power9 from Michael Ellerman
   - Fix _PAGE_PTE breaking swapoff from Aneesh Kumar K.V
   - Fix _PAGE_SWP_SOFT_DIRTY breaking swapoff from Hugh Dickins
   - scripts/recordmcount.pl: support data in text section on powerpc
     from Ulrich Weigand
   - Handle R_PPC64_ENTRY relocations in modules from Ulrich Weigand

  cxl:
   - cxl: Fix possible idr warning when contexts are released from
     Vaibhav Jain
   - cxl: use correct operator when writing pcie config space values
     from Andrew Donnellan
   - cxl: Fix DSI misses when the context owning task exits from Vaibhav
     Jain
   - cxl: fix build for GCC 4.6.x from Brian Norris
   - cxl: use -Werror only with CONFIG_PPC_WERROR from Brian Norris
   - cxl: Enable PCI device ID for future IBM CXL adapter from Uma
     Krishnan

  Freescale:
   - Freescale updates from Scott: Highlights include moving QE code out
     of arch/powerpc (to be shared with arm), device tree updates, and
     minor fixes"

* tag 'powerpc-4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (149 commits)
  powerpc/module: Handle R_PPC64_ENTRY relocations
  scripts/recordmcount.pl: support data in text section on powerpc
  powerpc/powernv: Fix OPAL_CONSOLE_FLUSH prototype and usages
  powerpc/mm: fix _PAGE_SWP_SOFT_DIRTY breaking swapoff
  powerpc/mm: Fix _PAGE_PTE breaking swapoff
  cxl: Enable PCI device ID for future IBM CXL adapter
  cxl: use -Werror only with CONFIG_PPC_WERROR
  cxl: fix build for GCC 4.6.x
  powerpc: Add HWCAP bits for Power9
  powerpc/powernv: Reserve PE#0 on NPU
  powerpc/powernv: Change NPU PE# assignment
  powerpc/powernv: Fix update of NVLink DMA mask
  powerpc/powernv: Remove misleading comment in pci.c
  powerpc: Implement save_stack_trace_regs() to enable kprobe stack tracing
  powerpc: Fix build break due to paca mm_context_t changes
  cxl: Fix DSI misses when the context owning task exits
  MAINTAINERS: Update Scott Wood's e-mail address
  powerpc/powernv: Fix minor off-by-one error in opal_mce_check_early_recovery()
  powerpc: Fix style of self-test config prompts
  powerpc/powernv: Only delay opal_rtc_read() retry when necessary
  ...
2016-01-15 13:18:47 -08:00
Linus Torvalds
237f38c3b3 USB patches for 4.5-rc1
Here is the big USB drivers update for 4.5-rc1.  Lots of gadget driver
 updates and fixes, like usual, and a mix of other USB driver updates as
 well.  Full details in the shortlog.  All of these have been in
 linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big USB drivers update for 4.5-rc1.

  Lots of gadget driver updates and fixes, like usual, and a mix of
  other USB driver updates as well.  Full details in the shortlog.  All
  of these have been in linux-next for a while"

* tag 'usb-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (191 commits)
  MAINTAINERS: change my email address
  USB: usbmon: remove assignment from IS_ERR argument
  USB: mxu11x0: drop redundant function name from error messages
  USB: mxu11x0: fix debug-message typos
  USB: mxu11x0: rename usb-serial driver
  USB: mxu11x0: fix modem-control handling on B0-transitions
  USB: mxu11x0: fix memory leak on firmware download
  USB: mxu11x0: fix memory leak in port-probe error path
  USB: serial: add Moxa UPORT 11x0 driver
  USB: cp210x: add ID for ELV Marble Sound Board 1
  usb: chipidea: otg: use usb autosuspend to suspend bus for HNP
  usb: chipidea: host: set host to be null after hcd is freed
  usb: chipidea: removing of_find_property
  usb: chipidea: implement platform shutdown callback
  usb: chipidea: clean up CONFIG_USB_CHIPIDEA_DEBUG reference
  usb: chipidea: delete static debug support
  usb: chipidea: support debugfs without CONFIG_USB_CHIPIDEA_DEBUG
  usb: chipidea: udc: improve error handling on _hardware_enqueue
  usb: chipidea: udc: _ep_queue and _hw_queue cleanup
  usb: dwc3: of-simple: fix build warning on !PM
  ...
2016-01-13 09:26:40 -08:00
Linus Torvalds
33caf82acf Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro:
 "All kinds of stuff.  That probably should've been 5 or 6 separate
  branches, but by the time I'd realized how large and mixed that bag
  had become it had been too close to -final to play with rebasing.

  Some fs/namei.c cleanups there, memdup_user_nul() introduction and
  switching open-coded instances, burying long-dead code, whack-a-mole
  of various kinds, several new helpers for ->llseek(), assorted
  cleanups and fixes from various people, etc.

  One piece probably deserves special mention - Neil's
  lookup_one_len_unlocked().  Similar to lookup_one_len(), but gets
  called without ->i_mutex and tries to avoid ever taking it.  That, of
  course, means that it's not useful for any directory modifications,
  but things like getting inode attributes in nfds readdirplus are fine
  with that.  I really should've asked for moratorium on lookup-related
  changes this cycle, but since I hadn't done that early enough...  I
  *am* asking for that for the coming cycle, though - I'm going to try
  and get conversion of i_mutex to rwsem with ->lookup() done under lock
  taken shared.

  There will be a patch closer to the end of the window, along the lines
  of the one Linus had posted last May - mechanical conversion of
  ->i_mutex accesses to inode_lock()/inode_unlock()/inode_trylock()/
  inode_is_locked()/inode_lock_nested().  To quote Linus back then:

    -----
    |    This is an automated patch using
    |
    |        sed 's/mutex_lock(&\(.*\)->i_mutex)/inode_lock(\1)/'
    |        sed 's/mutex_unlock(&\(.*\)->i_mutex)/inode_unlock(\1)/'
    |        sed 's/mutex_lock_nested(&\(.*\)->i_mutex,[     ]*I_MUTEX_\([A-Z0-9_]*\))/inode_lock_nested(\1, I_MUTEX_\2)/'
    |        sed 's/mutex_is_locked(&\(.*\)->i_mutex)/inode_is_locked(\1)/'
    |        sed 's/mutex_trylock(&\(.*\)->i_mutex)/inode_trylock(\1)/'
    |
    |    with a very few manual fixups
    -----

  I'm going to send that once the ->i_mutex-affecting stuff in -next
  gets mostly merged (or when Linus says he's about to stop taking
  merges)"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
  nfsd: don't hold i_mutex over userspace upcalls
  fs:affs:Replace time_t with time64_t
  fs/9p: use fscache mutex rather than spinlock
  proc: add a reschedule point in proc_readfd_common()
  logfs: constify logfs_block_ops structures
  fcntl: allow to set O_DIRECT flag on pipe
  fs: __generic_file_splice_read retry lookup on AOP_TRUNCATED_PAGE
  fs: xattr: Use kvfree()
  [s390] page_to_phys() always returns a multiple of PAGE_SIZE
  nbd: use ->compat_ioctl()
  fs: use block_device name vsprintf helper
  lib/vsprintf: add %*pg format specifier
  fs: use gendisk->disk_name where possible
  poll: plug an unused argument to do_poll
  amdkfd: don't open-code memdup_user()
  cdrom: don't open-code memdup_user()
  rsxx: don't open-code memdup_user()
  mtip32xx: don't open-code memdup_user()
  [um] mconsole: don't open-code memdup_user_nul()
  [um] hostaudio: don't open-code memdup_user()
  ...
2016-01-12 17:11:47 -08:00
Olof Johansson
d0ac6119aa ARM: tegra: Core SoC changes for v4.5-rc1
The big thing here is Tegra210 support, which is really only the Kconfig
 symbol. Other than that there's a few miscellaneous fixes.
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Merge tag 'tegra-for-4.5-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into late/tegra

ARM: tegra: Core SoC changes for v4.5-rc1

The big thing here is Tegra210 support, which is really only the Kconfig
symbol. Other than that there's a few miscellaneous fixes.

* tag 'tegra-for-4.5-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  ARM: tegra: select USB_ULPI from EHCI rather than platform
  ARM: tegra: Ensure entire dcache is flushed on entering LP0/1
  amba: Hide TEGRA_AHB symbol
  soc/tegra: Add Tegra210 support
  soc/tegra: Provide per-SoC Kconfig symbols

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-01-12 10:14:52 -08:00
Mauro Carvalho Chehab
c3152592e7 Merge branch 'patchwork' into v4l_for_linus
* patchwork: (204 commits)
  [media] rc: sunxi-cir: Initialize the spinlock properly
  [media] rtl2832: do not filter out slave TS null packets
  [media] rtl2832: print reg number on error case
  [media] rtl28xxu: return demod reg page from driver cache
  [media] coda: enable MPEG-2 ES decoding
  [media] coda: don't start streaming without queued buffers
  [media] coda: hook up vidioc_prepare_buf
  [media] coda: relax coda_jpeg_check_buffer for trailing bytes
  [media] coda: make to_coda_video_device static
  [media] s5p-mfc: remove volatile attribute from MFC register addresses
  [media] s5p-mfc: merge together s5p_mfc_hw_call and s5p_mfc_hw_call_void
  [media] s5p-mfc: use spinlock to protect MFC context
  [media] s5p-mfc: remove unnecessary callbacks
  [media] s5p-mfc: make queue cleanup code common
  [media] s5p-mfc: use one implementation of s5p_mfc_get_new_ctx
  [media] s5p-mfc: constify s5p_mfc_codec_ops structures
  [media] au8522: Avoid memory leak for device config data
  [media] ir-lirc-codec.c: don't leak lirc->drv-rbuf
  [media] uvcvideo: small cleanup in uvc_video_clock_update()
  [media] uvcvideo: Fix reading the current exposure value of UVC
  ...
2016-01-11 11:13:27 -02:00
Tomeu Vizoso
e3345db850 USB / PM: Allow USB devices to remain runtime-suspended when sleeping
Have dev_pm_ops.prepare return 1 for USB devices and ports so that USB
devices can remain runtime-suspended when the system goes to a sleep
state, if their wakeup state is correct and they have runtime PM enabled.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-01-08 01:12:06 +01:00
Bart Van Assche
10c17c6826 usb/gadget: Remove set-but-not-used variables
Avoid that building with W=1 triggers compiler warnings about
set-but-not-used variables.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Andy Grover <agrover@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-01-07 13:57:53 -08:00
Al Viro
7e935c7ca1 Merge branch 'memdup_user_nul' into work.misc 2016-01-04 10:25:34 -05:00
Julia Lawall
46c236dc7d USB: usbmon: remove assignment from IS_ERR argument
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e1,e2;
statement S1,S2;
@@

+e1 = e2;
if (IS_ERR(
    e1
-   = e2
   )) S1 else S2
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-03 16:55:59 -08:00
Greg Kroah-Hartman
48346892ff USB-serial fixes for v4.4-rc8
Here's another device id for cp210x.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial fixes for v4.4-rc8

Here's another device id for cp210x.

Signed-off-by: Johan Hovold <johan@kernel.org>
2016-01-03 15:19:12 -08:00
Greg Kroah-Hartman
b40e9dc0b4 USB-serial updates for v4.5-rc1
These updates add support for Moxa UPort 1100-series devices through a
 new mxu11x0 driver.
 
 The cp210x driver gains proper support for cp2108 devices by working
 around a couple of firmware bugs, and generic wait-until-sent support
 (e.g. for tcdrain) is also added.
 
 Included are also some general clean ups.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial updates for v4.5-rc1

These updates add support for Moxa UPort 1100-series devices through a
new mxu11x0 driver.

The cp210x driver gains proper support for cp2108 devices by working
around a couple of firmware bugs, and generic wait-until-sent support
(e.g. for tcdrain) is also added.

Included are also some general clean ups.

Signed-off-by: Johan Hovold <johan@kernel.org>
2016-01-03 15:15:26 -08:00
Johan Hovold
6ff9d2761b USB: mxu11x0: drop redundant function name from error messages
Drop redundant function name from a few error messages.
Drop redundant error message when generic open fails.

Signed-off-by: Johan Hovold <johan@kernel.org>
2015-12-29 13:43:14 +01:00
Johan Hovold
3645ea87b9 USB: mxu11x0: fix debug-message typos
Fix a couple of debug-message typos, and do some minor clean ups.

Signed-off-by: Johan Hovold <johan@kernel.org>
2015-12-29 13:43:14 +01:00
Johan Hovold
554eb0f205 USB: mxu11x0: rename usb-serial driver
Rename the usb-serial driver "mxu11x0" to match the USB driver name.

Signed-off-by: Johan Hovold <johan@kernel.org>
2015-12-29 13:43:14 +01:00
Johan Hovold
9631595a25 USB: mxu11x0: fix modem-control handling on B0-transitions
Make sure to raise DTR and RTS on transitions from B0 and leave the
other bits unchanged.

Signed-off-by: Johan Hovold <johan@kernel.org>
2015-12-29 13:43:14 +01:00
Johan Hovold
e69f7a6724 USB: mxu11x0: fix memory leak on firmware download
Make sure to release the private data before returning -ENODEV after
having downloaded the firmware during first probe.

Clean up the error paths while at it.

Signed-off-by: Johan Hovold <johan@kernel.org>
2015-12-29 13:43:14 +01:00
Johan Hovold
924eccc73d USB: mxu11x0: fix memory leak in port-probe error path
Fix memory leak in port-probe error path by verifying the interrupt-in
urb before allocating the private data.

Signed-off-by: Johan Hovold <johan@kernel.org>
2015-12-29 13:43:13 +01:00
Mathieu OTHACEHE
0b2b093ad4 USB: serial: add Moxa UPORT 11x0 driver
Add a driver which supports :

- UPort 1110  : 1 port RS-232 USB to Serial Hub.
- UPort 1130  : 1 port RS-422/485 USB to Serial Hub.
- UPort 1130I : 1 port RS-422/485 USB to Serial Hub with Isolation.
- UPort 1150  : 1 port RS-232/422/485 USB to Serial Hub.
- UPort 1150I : 1 port RS-232/422/485 USB to Serial Hub with Isolation.

This driver is based on GPL MOXA driver written by Hen Huang and available
on MOXA website. The original driver was based on io_ti serial driver.

Signed-off-by: Mathieu OTHACEHE <m.othacehe@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
2015-12-29 09:28:23 +01:00
Oliver Freyermuth
f7d7f59ab1 USB: cp210x: add ID for ELV Marble Sound Board 1
Add the USB device ID for ELV Marble Sound Board 1.

Signed-off-by: Oliver Freyermuth <o.freyermuth@googlemail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2015-12-28 19:07:35 +01:00
Greg Kroah-Hartman
f7dbd84fd4 The chipidea changes for v4.5-rc1
- Delete static debug for chipidea driver.
 - Suspend USB core when A device tries to switch to peripheral mode,
   at former design, it just stopped SoF simply but USB core doesn't know it.
 - Several small changes.
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Merge tag 'usb-ci-v4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-testing

Peter writes:

The chipidea changes for v4.5-rc1

- Delete static debug for chipidea driver.
- Suspend USB core when A device tries to switch to peripheral mode,
  at former design, it just stopped SoF simply but USB core doesn't know it.
- Several small changes.
2015-12-26 16:59:14 -08:00
Greg Kroah-Hartman
87cf5586fd usb: patches for v4.5
A ton of improvements to dwc2 have been made. The
 driver should be a lot more stable on v4.5 then ever
 before.
 
 Our good old dwc3 got a few cleanups and misc fixes
 and also added support to Xilinx's integration of
 this IP.
 
 Yoshihiro Shimoda gives us support for a new USB3
 peripheral controller from Renesas.
 
 Other than these, the usual misc fixes all over the
 place.
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Merge tag 'usb-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.5

A ton of improvements to dwc2 have been made. The
driver should be a lot more stable on v4.5 then ever
before.

Our good old dwc3 got a few cleanups and misc fixes
and also added support to Xilinx's integration of
this IP.

Yoshihiro Shimoda gives us support for a new USB3
peripheral controller from Renesas.

Other than these, the usual misc fixes all over the
place.
2015-12-26 16:56:25 -08:00
Li Jun
8c100e7440 usb: chipidea: otg: use usb autosuspend to suspend bus for HNP
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>
2015-12-24 14:18:07 +08:00
Li Jun
43a404577a usb: chipidea: host: set host to be null after hcd is freed
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>
2015-12-24 14:17:58 +08:00
Saurabh Sengar
4b19b78aa6 usb: chipidea: removing of_find_property
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>
2015-12-24 14:15:27 +08:00
Andreas Fenkart
b09b5224fe usb: chipidea: implement platform shutdown callback
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>
2015-12-24 14:15:27 +08:00
Peter Chen
3a35d59a69 usb: chipidea: clean up CONFIG_USB_CHIPIDEA_DEBUG reference
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>
2015-12-24 14:15:27 +08:00
Peter Chen
383da2450c usb: chipidea: delete static debug support
Since we have dynamic debug support, delete static debug for chipidea

Signed-off-by: Peter Chen <peter.chen@freescale.com>
2015-12-24 14:15:26 +08:00
Peter Chen
9d8c850d02 usb: chipidea: support debugfs without CONFIG_USB_CHIPIDEA_DEBUG
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>
2015-12-24 14:15:26 +08:00
Felipe F. Tonello
779debdf26 usb: chipidea: udc: improve error handling on _hardware_enqueue
_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>
2015-12-24 14:15:26 +08:00
Felipe F. Tonello
e46fed9fb3 usb: chipidea: udc: _ep_queue and _hw_queue cleanup
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>
2015-12-24 14:15:26 +08:00
Al Viro
b25472f9b9 new helpers: no_seek_end_llseek{,_size}()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-23 10:41:31 -05:00
Felipe Balbi
5072cfc40a usb: dwc3: of-simple: fix build warning on !PM
if we have a !PM kernel build, our runtime
suspend/resume callbacks will be left defined but
unused. Add a ifdef CONFIG_PM guard.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 21:58:26 -06:00
John Youn
d9261898a4 usb: dwc3: gadget: don't send extra ZLP
If the request->length is zero, a ZLP should already be sent due to that
and another ZLP is not needed to terminate the transfer.

Fixes: 04c03d10e5 ("usb: dwc3: gadget: handle request->zero")
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 21:58:26 -06:00
Yoshihiro Shimoda
746bfe63bb usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller
R-Car H3 has USB3.0 peripheral controllers. This controller's has the
following features:
 - Supports super, high and full speed
 - Contains 30 pipes for bulk or interrupt transfer
 - Contains dedicated DMA controller

This driver doesn't support the dedicated DMAC for now.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 21:58:15 -06:00
Zhao Qiang
7aa1aa6ece QE: Move QE from arch/powerpc to drivers/soc
ls1 has qe and ls1 has arm cpu.
move qe from arch/powerpc to drivers/soc/fsl
to adapt to powerpc and arm

Signed-off-by: Zhao Qiang <qiang.zhao@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2015-12-22 17:12:56 -06:00
Heiko Stübner
a40a00318c usb: dwc2: add shutdown callback to platform variant
In specific conditions (involving usb hubs) dwc2 devices can create a
lot of interrupts, even to the point of overwhelming devices running
at low frequencies. Some devices need to do special clock handling
at shutdown-time which may bring the system clock below the threshold
of being able to handle the dwc2 interrupts. Disabling dwc2-irqs
in a shutdown callbacks prevents reboots/poweroffs from getting stuck
in such cases.

The hsotg struct already contains an unused irq element, so we can
just use it to store the irq number for the shutdown callback.

Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@collabora.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 12:12:51 -06:00
Geliang Tang
ea4a8cb1c2 usb: gadget: bcm63xx_udc: use list_for_each_entry_safe
Use list_for_each_entry_safe() instead of list_for_each_safe() to
simplify the code.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 12:08:40 -06:00
Uwe Kleine-König
39cee200c2 usb: musb: core: call init and shutdown for the usb phy
The phy's init routine must be called before it can be used. Do so in
musb_init_controller and the matching shutdown in musb_remove.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 12:05:44 -06:00
Marek Vasut
6d76c92c2f usb: dwc2: gadget: Repair DSTS register decoding
The "enumspd" field is located in register DSTS[2:1], but the code
which checks the bitfield does not shift the value accordingly. This
in turn causes incorrect detection of gadget link partner speed in
dwc2_hsotg_irq_enumdone() .

Shift the value accordingly to fix the problem with speed detection.

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 12:03:05 -06:00
John Youn
60c0288c72 usb: dwc2: gadget: Remove call to dwc2_hsotg_init()
Remove call to dwc2_hsotg_init() from dwc2_gadget_init(). The
gadget_init function should not access any device registers because the
mode isn't guaranteed here.

Also, this is already called elsewhere before anything starts on the
gadget so it is not necessary here.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 12:02:44 -06:00
John Youn
25362d3183 usb: dwc2: Remove redundant reset in probe
Reset already happens before this so just force the dr_mode.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 12:02:34 -06:00
John Youn
97e463886b usb: dwc2: Reduce delay when forcing mode in reset
The delay for force mode is only 25ms according to the databook.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 12:01:32 -06:00
John Youn
241729baa9 usb: dwc2: gadget: Replace dwc2_hsotg_corereset()
The dwc2_core_reset() function exists in the core so use that one
instead.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 12:01:19 -06:00
John Youn
43e9034904 usb: dwc2: gadget: Use hw params from core
Use the previously cached hw params in the gadget. This saves a reset
and force mode in the gadget initialization during probe and makes
getting the hardware parameters consistent between gadget and host.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 12:01:01 -06:00
John Youn
55e1040e42 usb: dwc2: Improve handling of host and device hwparams
Adds separate functions to get the host and device specific hardware
parameters. The functions check whether the parameters need to be read
at all, depending on dr_mode, and forces the mode only if necessary.
This saves some delays during probe. This also adds two device mode
parameters that will be used by the gadget.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 12:00:51 -06:00
John Youn
09c96980dc usb: dwc2: Add functions to set and clear force mode
Added functions to set force mode for host and device. These functions
will check the current mode and only force if needed thus avoiding
unnecessary force mode delays. However clearing the mode is currently
done unconditionally and with the delay in place. This is needed during
the connector ID status change interrupt in order to ensure that the
mode has changed properly. This preserves the old behavior only for this
case. The warning comment about this is moved into the clear mode
condition.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 12:00:34 -06:00
John Youn
263b7fb557 usb: dwc2: Move reset into dwc2_get_hwparams()
The reset is required to get reset values of the hardware parameters but
the force mode is not. Move the base reset into dwc2_get_hwparams() and
do the reset and force mode afterwards.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:58:34 -06:00
John Youn
1696d5ab99 usb: dwc2: Move mode querying functions into core.h
These functions should go in core.h where they can be called from core,
device, or host.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:57:55 -06:00
John Youn
5268ed9d2e usb: dwc2: Fix dr_mode validation
The dr_mode parameter was being checked against how the dwc2 module
was being configured at compile time. But it wasn't checked against
the hardware capabilities, nor were the hardware capabilities checked
against the compilation parameters.

This commit adds those checks and adjusts dr_mode to an appropriate
value, if needed. If the hardware capabilities and module compilation
do not match then we fail as it wouldn't be possible to run properly.

The hardware, module, and dr_mode, can each be set to host, device,
or otg. Check that all these values are compatible and adjust the
value of dr_mode if possible.

The following table summarizes the behavior:

                     actual
   HW  MOD dr_mode   dr_mode
 ------------------------------
  HST  HST  any    :  HST
  HST  DEV  any    :  ---
  HST  OTG  any    :  HST

  DEV  HST  any    :  ---
  DEV  DEV  any    :  DEV
  DEV  OTG  any    :  DEV

  OTG  HST  any    :  HST
  OTG  DEV  any    :  DEV
  OTG  OTG  any    :  dr_mode

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:57:35 -06:00
John Youn
6bea962053 usb: dwc2: Add functions to check the HW OTG config
Added functions to query the GHWCFG2.OTG_MODE. This tells us whether the
controller hardware is configured for OTG, device-only, or host-only.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:55:46 -06:00
John Youn
b5d308abef usb: dwc2: Add dwc2_core_reset()
dwc2_core_reset() was previously renamed to
dwc2_core_reset_and_dr_force_mode(). Now add back dwc2_core_reset() which
performs only a basic core reset without forcing the mode.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:55:32 -06:00
John Youn
6d58f346a6 usb: dwc2: Rename dwc2_core_reset()
Renamed dwc2_core_reset() to dwc2_core_reset_and_force_dr_mode(). This
describes what it is doing more accurately. This is in preparation of
introducing a plain dwc2_core_reset() function that only performs the
reset and doesn't force the mode.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:55:21 -06:00
John Youn
b8ccc593ee usb: dwc2: Reorder AHBIDLE and CSFTRST in dwc2_core_reset()
According to the databook, the core soft reset should be done before
checking for AHBIDLE. The gadget version of core reset had it correct
but the hcd version did not. This fixes the hcd version.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:54:45 -06:00
Douglas Anderson
7d56cc2620 usb: dwc2: Avoid more calls to dwc2_core_reset()
Calls to dwc2_core_reset() are currently very slow, taking at least
150ms (possibly more).  It behooves us to take as many of these calls
out as possible.

It turns out that the calls in dwc2_fs_phy_init() and dwc2_hs_phy_init()
should (as documented in the code) only be needed if we need to do a PHY
SELECT.  That means that if we see that we can avoid the PHY SELECT then
we can avoid the reset.

This patch appears to successfully bypass two resets (one per USB
device) on rk3288-based ARM Chromebooks.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:54:30 -06:00
Yunzhi Li
20bde64343 usb: dwc2: reduce dwc2 driver probe time
I found that the probe function of dwc2 driver takes much time
when kernel boot up. There are many long delays in the probe
function these take almost 1 second.

This patch trying to reduce unnecessary delay time.

In dwc2_core_reset() I see it use two at least 20ms delays to
wait AHB idle and core soft reset, but dwc2 data book said that
dwc2 core soft reset and AHB idle just need a few clocks (I think
it refers to AHB clock, and AHB clock run at 150MHz in my RK3288
board), so 20ms is too long, delay 1us for wait AHB idle and soft
reset is enough.

And in dwc2_get_hwparams() it takes 150ms to wait ForceHostMode
and ForceDeviceMode valid but in data book it said software must
wait at least 25ms before the change to take effect, so I reduce
this time to 25ms~50ms. By the way, is there any state bit show
that the force mode take effect ? Could we poll curmod bit for
figuring out if the change take effect ?

It seems that usleep_range() at boot time will pick the longest
value in the range. In dwc2_core_reset() there is a very long
delay takes 200ms, and this function run twice when probe, could
any one tell me is this delay time resonable ?

I have tried this patch in my RK3288-evb board. It works well.

Signed-off-by: Yunzhi Li <lyz@rock-chips.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:54:16 -06:00
Douglas Anderson
f619473140 usb: dwc2: Speed dwc2_get_hwparams() on some host-only ports
On some host-only DWC2 ports (like the one in rk3288) when we set
GUSBCFG_FORCEHOSTMODE in GUSBCFG and then read back, we don't see the
bit set.  Presumably that's because the port is always forced to HOST
mode so there's no reason to implement these status bits.

Since we know dwc2_core_reset() is always called before
dwc2_get_hwparams() and we know dwc2_core_reset() should have set
GUSBCFG_FORCEHOSTMODE whenever hsotg->dr_mode == USB_DR_MODE_HOST, we
can just check hsotg->dr_mode to decide that we can skip the delays in
dwc2_get_hwparams().

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:53:01 -06:00
Douglas Anderson
0fe239bc19 usb: dwc2: Avoid double-reset at boot time
In (usb: dwc2: reset dwc2 core before dwc2_get_hwparams()) we added an
extra reset to the probe path for the dwc2 USB controllers.  This
allowed proper detection of parameters even if the firmware had already
used the USB part.

Unfortunately, this extra reset is quite slow and is affecting boot
speed.  We can avoid the double-reset by skipping the extra reset that
would happen just after the one we added.  Logic that explains why this
is safe:

* As of the CL mentioned above, we now always call dwc2_core_reset() in
  dwc2_driver_probe() before dwc2_hcd_init().

* The only caller of dwc2_hcd_init() is dwc2_driver_probe(), so we're
  guaranteed that dwc2_core_reset() was called before dwc2_hdc_init().

* dwc2_hdc_init() is the only caller that passes an irq other than -1 to
  dwc2_core_init().  Thus if dwc2_core_init() is called with an irq
  other than -1 we're guaranteed that dwc2_core_reset was called before
  dwc2_core_init().

...this allows us to remove the dwc2_core_reset() in dwc2_core_init() if
irq is not < 0.

Note that since "irq" wasn't used in the function dwc2_core_init()
anyway and since select_phy was always set at exactly the same times we
could avoid the reset, we remove "irq" and rename "select_phy" to
"initial_setup" and adjust the callers accordingly.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:52:08 -06:00
Yunzhi Li
cebfdbf329 usb: dwc2: reset dwc2 core before dwc2_get_hwparams()
We initiate dwc2 usb controller in BIOS, dwc2_core_reset() should
be called before dwc2_get_hwparams() to reset core registers to
default value. Without this the FIFO setting might be incorrect
because calculating FIFO size need power-on value of
GRXFSIZ/GNPTXFSIZ/HPTXFSIZ registers.

This patch could avoid warnning massage like in rk3288 platform:
[    2.074764] dwc2 ff580000.usb: 256 invalid for
host_perio_tx_fifo_size. Check HW configuration.

Signed-off-by: Yunzhi Li <lyz@rock-chips.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:51:45 -06:00
Douglas Anderson
991824677f usb: dwc2: Restore GUSBCFG in dwc2_get_hwparams()
Previously dwc2_get_hwparams() was changing GUSBCFG and not putting it
back the way it was (specifically it set and cleared FORCEHOSTMODE).
Since we want to move dwc2_core_reset() _before_ dwc2_get_hwparams() we
should make sure dwc2_get_hwparams() isn't messing with things in a
permanent way.

Since we're now looking at GUSBCFG, it's obvious that we shouldn't need
all the extra delays if FORCEHOSTMODE was already set.  This will avoid
some delays for any ports that have forced host mode.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:51:30 -06:00
Gregory Herrero
3be99cd0e8 usb: dwc2: gadget: don't overwrite DCTL register on NAKEFF interrupts
When receiving GINTSTS_GINNAKEFF or GINTSTS_GOUTNAKEFF interrupt,
DCTL will be overwritten with DCTL_CGOUTNAK or DCTL_CGNPINNAK values.
Instead of overwriting it, write only needed bits.

It could cause an issue if GINTSTS_GINNAKEFF or GINTSTS_GOUTNAKEFF
interrupt is received after dwc2 disabled pullup by writing
DCTL_SFTDISCON bit.
Pullup will then be re-enabled whereas it should not.

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:50:43 -06:00
Du, Changbin
0676c7e734 usb: dwc2: fix transfer stop programming for out endpoint
To stop an out endpoint, software should set sets the Global OUT NAK,
but not the Global Non-periodic IN NAK. This driver bug leads the out-ep
failed be in disabled state with below error.

dwc2_hsotg_ep_stop_xfr: timeout DOEPCTL.EPDisable

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Du, Changbin <changbin.du@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:50:03 -06:00
Baolin Wang
a5beaaf394 usb: gadget: Add the console support for usb-to-serial port
It dose not work when we want to use the usb-to-serial port based
on one usb gadget as a console. Thus this patch adds the console
initialization to support this request.

To avoid the re-entrance when transferring data with usb endpoint,
it introduces a kthread to do the IO transmission.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 11:49:39 -06:00
Greg Kroah-Hartman
bfccd95e7a Merge 4.4-rc6 into usb-next
We want the USB and PHY fixes in here as well to make things easier for
testing and development.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-21 11:11:12 -08:00
Andrzej Pietrasiewicz
4bb8548df6 usb: gadget: f_tcm: add configfs support
Allow using the tcm function as a component of a gadget composed with
ConfigFS.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-12-20 19:40:45 -08:00
Andrzej Pietrasiewicz
9beab5d4f2 usb: gadget: f_tcm: use usb_gstrings_attach
Do not directly use file static strings definitions in instances of f_tcm.
Instead use usb_gstrings_attach.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-12-20 19:40:43 -08:00
Andrzej Pietrasiewicz
c3f890bc79 usb: gadget: f_tcm: remove redundant singleton
The only instance is guaranteed with TPG_INSTANCES defined to 1.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-12-20 19:40:41 -08:00
Andrzej Pietrasiewicz
e5587ea11e usb: gadget: f_tcm: remove compatibility layer
There are no old function interface users left.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-12-20 19:40:39 -08:00
Andrzej Pietrasiewicz
002407145c usb: gadget: tcm: convert to use new function registration interface
Convert the only user of old tcm function interface so that the old
interface can be removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-12-20 19:40:36 -08:00