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Merge tag 'driver-core-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

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Pull driver core updates from Greg KH:
 "Here is the "big" set of driver core changes for 5.7-rc1.

  Nothing huge in here, just lots of little firmware core changes and
  use of new apis, a libfs fix, a debugfs api change, and some driver
  core deferred probe rework.

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

* tag 'driver-core-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (44 commits)
  Revert "driver core: Set fw_devlink to "permissive" behavior by default"
  driver core: Set fw_devlink to "permissive" behavior by default
  driver core: Replace open-coded list_last_entry()
  driver core: Read atomic counter once in driver_probe_done()
  libfs: fix infoleak in simple_attr_read()
  driver core: Add device links from fwnode only for the primary device
  platform/x86: touchscreen_dmi: Add info for the Chuwi Vi8 Plus tablet
  platform/x86: touchscreen_dmi: Add EFI embedded firmware info support
  Input: icn8505 - Switch to firmware_request_platform for retreiving the fw
  Input: silead - Switch to firmware_request_platform for retreiving the fw
  selftests: firmware: Add firmware_request_platform tests
  test_firmware: add support for firmware_request_platform
  firmware: Add new platform fallback mechanism and firmware_request_platform()
  Revert "drivers: base: power: wakeup.c: Use built-in RCU list checking"
  drivers: base: power: wakeup.c: Use built-in RCU list checking
  component: allow missing unbind callback
  debugfs: remove return value of debugfs_create_file_size()
  debugfs: Check module state before warning in {full/open}_proxy_open()
  firmware: fix a double abort case with fw_load_sysfs_fallback
  arch_topology: Fix putting invalid cpu clk
  ...
This commit is contained in:
Linus Torvalds
2020-03-30 13:59:52 -07:00
parent db34c5ffee 18555cb6db
commit 59838093be
48 changed files with 996 additions and 174 deletions
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24
Documentation/admin-guide/kernel-parameters.txt
View File

@@ -1360,6 +1360,24 @@
can be changed at run time by the max_graph_depth file
in the tracefs tracing directory. default: 0 (no limit)
fw_devlink= [KNL] Create device links between consumer and supplier
devices by scanning the firmware to infer the
consumer/supplier relationships. This feature is
especially useful when drivers are loaded as modules as
it ensures proper ordering of tasks like device probing
(suppliers first, then consumers), supplier boot state
clean up (only after all consumers have probed),
suspend/resume & runtime PM (consumers first, then
suppliers).
Format: { off | permissive | on | rpm }
off -- Don't create device links from firmware info.
permissive -- Create device links from firmware info
but use it only for ordering boot state clean
up (sync_state() calls).
on -- Create device links from firmware info and use it
to enforce probe and suspend/resume ordering.
rpm -- Like "on", but also use to order runtime PM.
gamecon.map[2|3]=
[HW,JOY] Multisystem joystick and NES/SNES/PSX pad
support via parallel port (up to 5 devices per port)
@@ -3291,12 +3309,6 @@
This can be set from sysctl after boot.
See Documentation/admin-guide/sysctl/vm.rst for details.
of_devlink [OF, KNL] Create device links between consumer and
supplier devices by scanning the devictree to infer the
consumer/supplier relationships. A consumer device
will not be probed until all the supplier devices have
probed successfully.
ohci1394_dma=early [HW] enable debugging via the ohci1394 driver.
See Documentation/debugging-via-ohci1394.txt for more
info.