linux-stable.git/drivers/base/property.c, branch v6.0

Merge tag 'usb-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2022-06-03T18:17:49+00:00

Pull USB / Thunderbolt updates from Greg KH:
 "Here is the "big" set of USB and Thunderbolt driver changes for
  5.18-rc1. For the most part it's been a quiet development cycle for
  the USB core, but there are the usual "hot spots" of development
  activity.

  Included in here are:

   - Thunderbolt driver updates:
       - fixes for devices without displayport adapters
       - lane bonding support and improvements
       - other minor changes based on device testing

   - dwc3 gadget driver changes.

     It seems this driver will never be finished given that the IP core
     is showing up in zillions of new devices and each implementation
     decides to do something different with it...

   - uvc gadget driver updates as more devices start to use and rely on
     this hardware as well

   - usb_maxpacket() api changes to remove an unneeded and unused
     parameter.

   - usb-serial driver device id updates and small cleanups

   - typec cleanups and fixes based on device testing

   - device tree updates for usb properties

   - lots of other small fixes and driver updates.

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

* tag 'usb-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (154 commits)
  USB: new quirk for Dell Gen 2 devices
  usb: dwc3: core: Add error log when core soft reset failed
  usb: dwc3: gadget: Move null pinter check to proper place
  usb: hub: Simplify error and success path in port_over_current_notify
  usb: cdns3: allocate TX FIFO size according to composite EP number
  usb: dwc3: Fix ep0 handling when getting reset while doing control transfer
  usb: Probe EHCI, OHCI controllers asynchronously
  usb: isp1760: Fix out-of-bounds array access
  xhci: Don't defer primary roothub registration if there is only one roothub
  USB: serial: option: add Quectel BG95 modem
  USB: serial: pl2303: fix type detection for odd device
  xhci: Allow host runtime PM as default for Intel Alder Lake N xHCI
  xhci: Remove quirk for over 10 year old evaluation hardware
  xhci: prevent U2 link power state if Intel tier policy prevented U1
  xhci: use generic command timer for stop endpoint commands.
  usb: host: xhci-plat: omit shared hcd if either root hub has no ports
  usb: host: xhci-plat: prepare operation w/o shared hcd
  usb: host: xhci-plat: create shared hcd after having added main hcd
  xhci: prepare for operation w/o shared hcd
  xhci: factor out parts of xhci_gen_setup()
  ...

device property: Advertise fwnode and device property count API calls

2022-05-06T18:49:07+00:00

The documentation of fwnode and device property array API calls isn't
pointing out to the shortcuts to count the number of elements of size
in an array. Amend the documentation to advertise fwnode and device
property count API calls.

Reported-by: Sakari Ailus 
Signed-off-by: Andy Shevchenko 
Signed-off-by: Rafael J. Wysocki

device property: Fix recent breakage of fwnode_get_next_parent_dev()

2022-05-05T12:19:15+00:00

Due to a subtle typo, instead of commit 87ffea09470d ("device
property: Introduce fwnode_for_each_parent_node()") being a no-op
change, it ended up causing the display on my sc7180-trogdor-lazor
device from coming up unless I added "fw_devlink=off" to my kernel
command line. Fix the typo.

Fixes: 87ffea09470d ("device property: Introduce fwnode_for_each_parent_node()")
Signed-off-by: Douglas Anderson 
Reviewed-by: Saravana Kannan 
Reviewed-by: Sakari Ailus 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Rafael J. Wysocki

device property: Use multi-connection matchers for single case

2022-04-26T11:47:12+00:00

The newly introduced helpers for searching for matches in the case of
multiple connections can be resused by the single-connection case, so do
this to save some duplication.

Reviewed-by: Andy Shevchenko 
Signed-off-by: Bjorn Andersson 
Link: https://lore.kernel.org/r/20220422222351.1297276-3-bjorn.andersson@linaro.org
Signed-off-by: Greg Kroah-Hartman

device property: Add helper to match multiple connections

2022-04-26T11:47:12+00:00

In some cases multiple connections with the same connection id
needs to be resolved from a fwnode graph.

One such example is when separate hardware is used for performing muxing
and/or orientation switching of the SuperSpeed and SBU lines in a USB
Type-C connector. In this case the connector needs to belong to a graph
with multiple matching remote endpoints, and the Type-C controller needs
to be able to resolve them both.

Add a new API that allows this kind of lookup.

Reviewed-by: Andy Shevchenko 
Signed-off-by: Bjorn Andersson 
Link: https://lore.kernel.org/r/20220422222351.1297276-2-bjorn.andersson@linaro.org
Signed-off-by: Greg Kroah-Hartman

device property: Drop 'test' prefix in parameters of fwnode_is_ancestor_of()

2022-04-13T18:04:02+00:00

The part 'is' in the function name implies the test against something.
Drop unnecessary 'test' prefix in the fwnode_is_ancestor_of() parameters.

No functional change intended.

Signed-off-by: Andy Shevchenko 
Reviewed-by: Sakari Ailus 
Signed-off-by: Rafael J. Wysocki

device property: Introduce fwnode_for_each_parent_node()

2022-04-13T18:04:02+00:00

In a few cases the functionality of fwnode_for_each_parent_node()
is already in use. Introduce a common helper macro for it.

It may be used by others as well in the future.

Signed-off-by: Andy Shevchenko 
Reviewed-by: Sakari Ailus 
Signed-off-by: Rafael J. Wysocki

device property: Allow error pointer to be passed to fwnode APIs

2022-04-13T18:04:02+00:00

Some of the fwnode APIs might return an error pointer instead of NULL
or valid fwnode handle. The result of such API call may be considered
optional and hence the test for it is usually done in a form of

	fwnode = fwnode_find_reference(...);
	if (IS_ERR(fwnode))
		...error handling...

Nevertheless the resulting fwnode may have bumped the reference count
and hence caller of the above API is obliged to call fwnode_handle_put().
Since fwnode may be not valid either as NULL or error pointer the check
has to be performed there. This approach uglifies the code and adds
a point of making a mistake, i.e. forgetting about error point case.

To prevent this, allow an error pointer to be passed to the fwnode APIs.

Fixes: 83b34afb6b79 ("device property: Introduce fwnode_find_reference()")
Reported-by: Nuno Sá 
Tested-by: Nuno Sá 
Acked-by: Nuno Sá 
Reviewed-by: Sakari Ailus 
Reviewed-by: Heikki Krogerus 
Signed-off-by: Andy Shevchenko 
Tested-by: Michael Walle 
Signed-off-by: Rafael J. Wysocki

device property: Add irq_get to fwnode operation

2022-04-05T13:30:47+00:00

Add irq_get() fwnode operation to implement fwnode_irq_get() through
fwnode operations, moving the code in fwnode_irq_get() to OF and ACPI
frameworks.

Signed-off-by: Sakari Ailus 
Acked-by: Rob Herring 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Heikki Krogerus 
Signed-off-by: Rafael J. Wysocki

device property: Add iomap to fwnode operations

2022-04-05T13:30:47+00:00

Add iomap() fwnode operation to implement fwnode_iomap() through fwnode
operations, moving the code in fwnode_iomap() to OF framework.

Note that the IS_ENABLED(CONFIG_OF_ADDRESS) && is_of_node(fwnode) check is
needed for Sparc that has its own implementation of of_iomap anyway. Let
the pre-compiler to handle that check.

Signed-off-by: Sakari Ailus 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Heikki Krogerus 
Signed-off-by: Rafael J. Wysocki