delta/linux.git/include/linux/usb, branch master

Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2023-04-27T18:53:57+00:00

Pull driver core updates from Greg KH:
 "Here is the large set of driver core changes for 6.4-rc1.

  Once again, a busy development cycle, with lots of changes happening
  in the driver core in the quest to be able to move "struct bus" and
  "struct class" into read-only memory, a task now complete with these
  changes.

  This will make the future rust interactions with the driver core more
  "provably correct" as well as providing more obvious lifetime rules
  for all busses and classes in the kernel.

  The changes required for this did touch many individual classes and
  busses as many callbacks were changed to take const * parameters
  instead. All of these changes have been submitted to the various
  subsystem maintainers, giving them plenty of time to review, and most
  of them actually did so.

  Other than those changes, included in here are a small set of other
  things:

   - kobject logging improvements

   - cacheinfo improvements and updates

   - obligatory fw_devlink updates and fixes

   - documentation updates

   - device property cleanups and const * changes

   - firwmare loader dependency fixes.

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (120 commits)
  device property: make device_property functions take const device *
  driver core: update comments in device_rename()
  driver core: Don't require dynamic_debug for initcall_debug probe timing
  firmware_loader: rework crypto dependencies
  firmware_loader: Strip off \n from customized path
  zram: fix up permission for the hot_add sysfs file
  cacheinfo: Add use_arch[|_cache]_info field/function
  arch_topology: Remove early cacheinfo error message if -ENOENT
  cacheinfo: Check cache properties are present in DT
  cacheinfo: Check sib_leaf in cache_leaves_are_shared()
  cacheinfo: Allow early level detection when DT/ACPI info is missing/broken
  cacheinfo: Add arm64 early level initializer implementation
  cacheinfo: Add arch specific early level initializer
  tty: make tty_class a static const structure
  driver core: class: remove struct class_interface * from callbacks
  driver core: class: mark the struct class in struct class_interface constant
  driver core: class: make class_register() take a const *
  driver core: class: mark class_release() as taking a const *
  driver core: remove incorrect comment for device_create*
  MIPS: vpe-cmp: remove module owner pointer from struct class usage.
  ...

usb: gadget: Add function wakeup support

2023-03-29T08:27:01+00:00

USB3.2 spec section 9.2.5.4 quotes that a function may signal that
it wants to exit from Function Suspend by sending a Function
Wake Notification to the host if it is enabled for function
remote wakeup. Add an api in composite layer that can be used
by the function drivers to support this feature. Also expose
a gadget op so that composite layer can trigger a wakeup request
to the UDC driver.

Reviewed-by: Thinh Nguyen 
Signed-off-by: Elson Roy Serrao 
Link: https://lore.kernel.org/r/1679694482-16430-4-git-send-email-quic_eserrao@quicinc.com
Signed-off-by: Greg Kroah-Hartman

usb: gadget: Properly configure the device for remote wakeup

2023-03-29T08:27:00+00:00

The wakeup bit in the bmAttributes field indicates whether the device
is configured for remote wakeup. But this field should be allowed to
set only if the UDC supports such wakeup mechanism. So configure this
field based on UDC capability. Also inform the UDC whether the device
is configured for remote wakeup by implementing a gadget op.

Reviewed-by: Thinh Nguyen 
Signed-off-by: Elson Roy Serrao 
Link: https://lore.kernel.org/r/1679694482-16430-2-git-send-email-quic_eserrao@quicinc.com
Signed-off-by: Greg Kroah-Hartman

xhci: use pm_ptr() instead of #ifdef for CONFIG_PM conditionals

2023-03-29T06:56:35+00:00

A recent patch caused an unused-function warning in builds with
CONFIG_PM disabled, after the function became marked 'static':

drivers/usb/host/xhci-pci.c:91:13: error: 'xhci_msix_sync_irqs' defined but not used [-Werror=unused-function]
   91 | static void xhci_msix_sync_irqs(struct xhci_hcd *xhci)
      |             ^~~~~~~~~~~~~~~~~~~

This could be solved by adding another #ifdef, but as there is
a trend towards removing CONFIG_PM checks in favor of helper
macros, do the same conversion here and use pm_ptr() to get
either a function pointer or NULL but avoid the warning.

As the hidden functions reference some other symbols, make
sure those are visible at compile time, at the minimal cost of
a few extra bytes for 'struct usb_device'.

Fixes: 9abe15d55dcc ("xhci: Move xhci MSI sync function to to xhci-pci")
Signed-off-by: Arnd Bergmann 
Link: https://lore.kernel.org/r/20230328131114.1296430-1-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman

USB: mark all struct bus_type as const

2023-03-23T12:22:00+00:00

Now that the driver core can properly handle constant struct bus_type,
move all of the USB subsystem struct bus_type structures as const,
placing them into read-only memory which can not be modified at runtime.

Cc: Johan Hovold 
Cc: Evan Green 
Cc: Alan Stern 
Cc: linux-usb@vger.kernel.org
Acked-by: Heikki Krogerus 
Link: https://lore.kernel.org/r/20230313182918.1312597-36-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman

Merge tag 'usb-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2023-02-24T20:07:00+00:00

Pull USB / Thunderbolt driver updates from Greg KH:
 "Here is the big set of USB and Thunderbolt driver changes for 6.3-rc1.

  Nothing major in here, just lots of good development, including:

   - Thunderbolt additions for new device support and features

   - xhci driver updates and cleanups

   - USB gadget media driver updates (includes media core changes that
     were acked by the v4l2 maintainers)

   - lots of other USB gadget driver updates for new features

   - dwc3 driver updates and fixes

   - minor debugfs leak fixes

   - typec driver updates and additions

   - dt-bindings conversions to yaml

   - other small bugfixes and driver updates

  All have been in linux-next for a while with no reported issues"

* tag 'usb-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (237 commits)
  usb: dwc3: xilinx: Remove unused of_gpio,h
  usb: typec: pd: Add higher capability sysfs for sink PDO
  usb: typec: pd: Remove usb_suspend_supported sysfs from sink PDO
  usb: dwc3: pci: add support for the Intel Meteor Lake-M
  usb: gadget: u_ether: Don't warn in gether_setup_name_default()
  usb: gadget: u_ether: Convert prints to device prints
  usb: gadget: u_serial: Add null pointer check in gserial_resume
  usb: gadget: uvc: fix missing mutex_unlock() if kstrtou8() fails
  xhci: host: potential NULL dereference in xhci_generic_plat_probe()
  dt-bindings: usb: amlogic,meson-g12a-usb-ctrl: make G12A usb3-phy0 optional
  usb: host: fsl-mph-dr-of: reuse device_set_of_node_from_dev
  of: device: Do not ignore error code in of_device_uevent_modalias
  of: device: Ignore modalias of reused nodes
  usb: gadget: configfs: Fix set but not used variable warning
  usb: gadget: uvc: Use custom strings if available
  usb: gadget: uvc: Allow linking function to string descs
  usb: gadget: uvc: Pick up custom string descriptor IDs
  usb: gadget: uvc: Allow linking XUs to string descriptors
  usb: gadget: configfs: Attach arbitrary strings to cdev
  usb: gadget: configfs: Support arbitrary string descriptors
  ...

usb: gadget: configfs: Attach arbitrary strings to cdev

2023-02-07T07:46:36+00:00

Attach any arbitrary strings that are defined to the composite dev.
We handle the old-style manufacturer, product and serialnumbers
strings in the same function for simplicity.

Signed-off-by: Daniel Scally 
Link: https://lore.kernel.org/r/20230206161802.892954-8-dan.scally@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman

usb: gadget: configfs: Support arbitrary string descriptors

2023-02-07T07:46:36+00:00

Add a framework to allow users to define arbitrary string descriptors
for a USB Gadget. This is modelled as a new type of config item rather
than as hardcoded attributes so as to be as flexible as possible.

Signed-off-by: Daniel Scally 
Link: https://lore.kernel.org/r/20230206161802.892954-7-dan.scally@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman

usb: gadget: add doc to struct usb_composite_dev

2023-02-06T07:40:39+00:00

Added documentation to new struct members for WebUSB:
* bcd_webusb_version
* b_webusb_vendor_code
* landing_page
* use_webusb
to avoid warnings in the build of htmldocs

Fixes: 93c473948c58 ("usb: gadget: add WebUSB landing page support")
Reported-by: Stephen Rothwell 
Signed-off-by: Jó Ágila Bitsch 
Link: https://lore.kernel.org/r/Y95MRZZz3yC5lETB@jo-einhundert
Signed-off-by: Greg Kroah-Hartman

usb: gadget: Use correct APIs and data types for UUID handling

2023-01-31T09:37:29+00:00

We have two types for UUIDs depending on the byte ordering.
Instead of explaining how bytes should go over the wire,
use dedicated APIs and data types. This removes a confusion
over the byte ordering.

Signed-off-by: Andy Shevchenko 
Tested-By: Jó Ágila Bitsch 
Link: https://lore.kernel.org/r/20230125143425.85268-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman