Commit Graph

3330 Commits

Author SHA1 Message Date
Linus Torvalds
d7d170a8e3 chrome platform changes for v5.3
* CrOS EC:
 
 - Add new CrOS ISHTP transport protocol
 - Add proper documentation for debugfs entries and expose resume and uptime files
 - Select LPC transport protocol variant at runtime.
 - Add lid angle sensor driver
 - Fix oops on suspend/resume for lightbar driver
 - Set CrOS SPI transport protol in realtime
 
 * Wilco EC:
 
 - Add telemetry char device interface
 - Add support for event handling
 - Add new sysfs attributes
 
 * Misc:
 - Contains ib-mfd-cros-v5.3 immutable branch from mfd, with cros_ec_commands.h
   header freshly synced with Chrome OS's EC project.
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Merge tag 'tag-chrome-platform-for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Benson Leung
 "CrOS EC:
   - Add new CrOS ISHTP transport protocol
   - Add proper documentation for debugfs entries and expose resume and
     uptime files
   - Select LPC transport protocol variant at runtime.
   - Add lid angle sensor driver
   - Fix oops on suspend/resume for lightbar driver
   - Set CrOS SPI transport protol in realtime

  Wilco EC:
   - Add telemetry char device interface
   - Add support for event handling
   - Add new sysfs attributes

  Misc:
   - Contains ib-mfd-cros-v5.3 immutable branch from mfd, with
     cros_ec_commands.h header freshly synced with Chrome OS's EC
     project"

* tag 'tag-chrome-platform-for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: (54 commits)
  mfd / platform: cros_ec_debugfs: Expose resume result via debugfs
  platform/chrome: lightbar: Get drvdata from parent in suspend/resume
  iio: cros_ec: Add lid angle driver
  platform/chrome: wilco_ec: Add circular buffer as event queue
  platform/chrome: cros_ec_lpc_mec: Fix kernel-doc comment first line
  platform/chrome: cros_ec_lpc: Choose Microchip EC at runtime
  platform/chrome: cros_ec_lpc: Merge cros_ec_lpc and cros_ec_lpc_reg
  Input: cros_ec_keyb: mask out extra flags in event_type
  platform/chrome: wilco_ec: Fix unreleased lock in event_read()
  platform/chrome: cros_ec_debugfs: cros_ec_uptime_fops can be static
  platform/chrome: cros_ec_debugfs: Add debugfs ABI documentation
  platform/chrome: cros_ec_debugfs: Fix kernel-doc comment first line
  platform/chrome: cros_ec_debugfs: Add debugfs entry to retrieve EC uptime
  mfd: cros_ec: Update I2S API
  mfd: cros_ec: Add Management API entry points
  mfd: cros_ec: Add SKU ID and Secure storage API
  mfd: cros_ec: Add API for rwsig
  mfd: cros_ec: Add API for Fingerprint support
  mfd: cros_ec: Add API for Touchpad support
  mfd: cros_ec: Add API for EC-EC communication
  ...
2019-07-11 18:45:29 -07:00
Linus Torvalds
97ff4ca46d Char / Misc driver patches for 5.3-rc1
Here is the "large" pull request for char and misc and other assorted
 smaller driver subsystems for 5.3-rc1.
 
 It seems that this tree is becoming the funnel point of lots of smaller
 driver subsystems, which is fine for me, but that's why it is getting
 larger over time and does not just contain stuff under drivers/char/ and
 drivers/misc.
 
 Lots of small updates all over the place here from different driver
 subsystems:
   - habana driver updates
   - coresight driver updates
   - documentation file movements and updates
   - Android binder fixes and updates
   - extcon driver updates
   - google firmware driver updates
   - fsi driver updates
   - smaller misc and char driver updates
   - soundwire driver updates
   - nvmem driver updates
   - w1 driver fixes
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc driver updates from Greg KH:
 "Here is the "large" pull request for char and misc and other assorted
  smaller driver subsystems for 5.3-rc1.

  It seems that this tree is becoming the funnel point of lots of
  smaller driver subsystems, which is fine for me, but that's why it is
  getting larger over time and does not just contain stuff under
  drivers/char/ and drivers/misc.

  Lots of small updates all over the place here from different driver
  subsystems:
   - habana driver updates
   - coresight driver updates
   - documentation file movements and updates
   - Android binder fixes and updates
   - extcon driver updates
   - google firmware driver updates
   - fsi driver updates
   - smaller misc and char driver updates
   - soundwire driver updates
   - nvmem driver updates
   - w1 driver fixes

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

* tag 'char-misc-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (188 commits)
  coresight: Do not default to CPU0 for missing CPU phandle
  dt-bindings: coresight: Change CPU phandle to required property
  ocxl: Allow contexts to be attached with a NULL mm
  fsi: sbefifo: Don't fail operations when in SBE IPL state
  coresight: tmc: Smatch: Fix potential NULL pointer dereference
  coresight: etm3x: Smatch: Fix potential NULL pointer dereference
  coresight: Potential uninitialized variable in probe()
  coresight: etb10: Do not call smp_processor_id from preemptible
  coresight: tmc-etf: Do not call smp_processor_id from preemptible
  coresight: tmc-etr: alloc_perf_buf: Do not call smp_processor_id from preemptible
  coresight: tmc-etr: Do not call smp_processor_id() from preemptible
  docs: misc-devices: convert files without extension to ReST
  fpga: dfl: fme: align PR buffer size per PR datawidth
  fpga: dfl: fme: remove copy_to_user() in ioctl for PR
  fpga: dfl-fme-mgr: fix FME_PR_INTFC_ID register address.
  intel_th: msu: Start read iterator from a non-empty window
  intel_th: msu: Split sgt array and pointer in multiwindow mode
  intel_th: msu: Support multipage blocks
  intel_th: pci: Add Ice Lake NNPI support
  intel_th: msu: Fix single mode with disabled IOMMU
  ...
2019-07-11 15:34:05 -07:00
Linus Torvalds
e9a83bd232 It's been a relatively busy cycle for docs:
- A fair pile of RST conversions, many from Mauro.  These create more
    than the usual number of simple but annoying merge conflicts with other
    trees, unfortunately.  He has a lot more of these waiting on the wings
    that, I think, will go to you directly later on.
 
  - A new document on how to use merges and rebases in kernel repos, and one
    on Spectre vulnerabilities.
 
  - Various improvements to the build system, including automatic markup of
    function() references because some people, for reasons I will never
    understand, were of the opinion that :c:func:``function()`` is
    unattractive and not fun to type.
 
  - We now recommend using sphinx 1.7, but still support back to 1.4.
 
  - Lots of smaller improvements, warning fixes, typo fixes, etc.
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Merge tag 'docs-5.3' of git://git.lwn.net/linux

Pull Documentation updates from Jonathan Corbet:
 "It's been a relatively busy cycle for docs:

   - A fair pile of RST conversions, many from Mauro. These create more
     than the usual number of simple but annoying merge conflicts with
     other trees, unfortunately. He has a lot more of these waiting on
     the wings that, I think, will go to you directly later on.

   - A new document on how to use merges and rebases in kernel repos,
     and one on Spectre vulnerabilities.

   - Various improvements to the build system, including automatic
     markup of function() references because some people, for reasons I
     will never understand, were of the opinion that
     :c:func:``function()`` is unattractive and not fun to type.

   - We now recommend using sphinx 1.7, but still support back to 1.4.

   - Lots of smaller improvements, warning fixes, typo fixes, etc"

* tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits)
  docs: automarkup.py: ignore exceptions when seeking for xrefs
  docs: Move binderfs to admin-guide
  Disable Sphinx SmartyPants in HTML output
  doc: RCU callback locks need only _bh, not necessarily _irq
  docs: format kernel-parameters -- as code
  Doc : doc-guide : Fix a typo
  platform: x86: get rid of a non-existent document
  Add the RCU docs to the core-api manual
  Documentation: RCU: Add TOC tree hooks
  Documentation: RCU: Rename txt files to rst
  Documentation: RCU: Convert RCU UP systems to reST
  Documentation: RCU: Convert RCU linked list to reST
  Documentation: RCU: Convert RCU basic concepts to reST
  docs: filesystems: Remove uneeded .rst extension on toctables
  scripts/sphinx-pre-install: fix out-of-tree build
  docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/
  Documentation: PGP: update for newer HW devices
  Documentation: Add section about CPU vulnerabilities for Spectre
  Documentation: platform: Delete x86-laptop-drivers.txt
  docs: Note that :c:func: should no longer be used
  ...
2019-07-09 12:34:26 -07:00
Linus Torvalds
0415052db4 Device properties framework updates for 5.3-rc1
- Add helpers to count items in a property array (Andy Shevchenko).
 
  - Extend "software nodes" support to be more convenient for
    representing device properties supplied by drivers (Heikki
    Krogerus).
 
  - Add device_find_child_by_name() helper to the driver core (Heikki
    Krogerus).
 
  - Extend device connection code to also look for references provided
    via fwnode pointers (Heikki Krogerus).
 
  - Start to register proper struct device objects for USB Type-C
    muxes and orientation switches (Heikki Krogerus).
 
  - Update the intel_cht_int33fe driver to describe devices in a more
    general way with the help of "software nodes" (Heikki Krogerus).
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Merge tag 'devprop-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull device properties framework updates from Rafael Wysocki:
 "These add helpers for counting items in a property array and extend
  the "software nodes" support to be more convenient for representing
  device properties supplied by drivers and make the intel_cht_int33fe
  driver use that.

  Specifics:

   - Add helpers to count items in a property array (Andy Shevchenko).

   - Extend "software nodes" support to be more convenient for
     representing device properties supplied by drivers (Heikki
     Krogerus).

   - Add device_find_child_by_name() helper to the driver core (Heikki
     Krogerus).

   - Extend device connection code to also look for references provided
     via fwnode pointers (Heikki Krogerus).

   - Start to register proper struct device objects for USB Type-C muxes
     and orientation switches (Heikki Krogerus).

   - Update the intel_cht_int33fe driver to describe devices in a more
     general way with the help of "software nodes" (Heikki Krogerus)"

* tag 'devprop-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  device property: Add helpers to count items in an array
  platform/x86: intel_cht_int33fe: Replacing the old connections with references
  platform/x86: intel_cht_int33fe: Supply fwnodes for the external dependencies
  platform/x86: intel_cht_int33fe: Provide fwnode for the USB connector
  platform/x86: intel_cht_int33fe: Provide software nodes for the devices
  platform/x86: intel_cht_int33fe: Remove unused fusb302 device property
  platform/x86: intel_cht_int33fe: Register max17047 in its own function
  usb: typec: Registering real device entries for the muxes
  device connection: Find connections also by checking the references
  device property: Introduce fwnode_find_reference()
  ACPI / property: Don't limit named child node matching to data nodes
  driver core: Add helper device_find_child_by_name()
  software node: Add software_node_get_reference_args()
  software node: Use kobject name when finding child nodes by name
  software node: Add support for static node descriptors
  software node: Simplify software_node_release() function
  software node: Allow node creation without properties
2019-07-09 10:28:47 -07:00
Mauro Carvalho Chehab
9b5db89ea4 docs: misc-devices: convert files without extension to ReST
Those files are also text files. Convert them to ReST and add
to the misc-files index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Link: https://lore.kernel.org/r/b7dc829809673bd8cffe0e7bbe9c9308681c6fe2.1561756511.git.mchehab+samsung@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-03 21:09:41 +02:00
Evan Green
8c3166e17c mfd / platform: cros_ec_debugfs: Expose resume result via debugfs
For ECs that support it, the EC returns the number of slp_s0
transitions and whether or not there was a timeout in the resume
response. Expose the last resume result to usermode via debugfs so
that usermode can detect and report S0ix timeouts.

Signed-off-by: Evan Green <evgreen@chromium.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-07-01 15:39:11 +02:00
Mauro Carvalho Chehab
49872a1cfc platform: x86: get rid of a non-existent document
Changeset 163ede97a9 ("Documentation: platform: Delete x86-laptop-drivers.txt")
removed the x86-laptop-drivers.txt file, but forgot to update its
Kconfig.

Fixes: 163ede97a9 ("Documentation: platform: Delete x86-laptop-drivers.txt")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-28 09:00:51 -06:00
Rajat Jain
c18e6ea101 platform/chrome: lightbar: Get drvdata from parent in suspend/resume
The lightbar driver never assigned the drvdata in probe method, and
thus there is nothing there. Need to get the ec_dev from the parent's
drvdata.

Signed-off-by: Rajat Jain <rajatja@google.com>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-06-28 12:37:21 +02:00
Nick Crews
1d333ef3d5 platform/chrome: wilco_ec: Add circular buffer as event queue
The current implementation of the event queue both
wastes space using a doubly linked list and isn't super
obvious in how it behaves. This converts the queue to an
actual circular buffer. The size of the queue is a
tunable module parameter. This also fixes a few other things:

- A memory leak that occurred when the ACPI device was
  removed, but the events were not freed from the queue.
- Now kfree() the oldest event from outside all locks.
- Add newline to logging messages.
- Add helper macros to calculate size of events.
- Remove unneeded lock around a check for dev_data->exist
  in hangup_device().
- Remove an unneeded null event pointer check in enqueue_events().
- Correct some comments.

Signed-off-by: Nick Crews <ncrews@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-06-25 12:33:05 +02:00
Enric Balletbo i Serra
9eecd07b34 platform/chrome: cros_ec_lpc_mec: Fix kernel-doc comment first line
kernel-doc comments have a prescribed format. To be _particularly_ correct
we should also capitalise the brief description and terminate it with a
period.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Nick Crews <ncrews@chromium.org>
2019-06-20 12:00:32 +02:00
Enric Balletbo i Serra
22c040fa21 platform/chrome: cros_ec_lpc: Choose Microchip EC at runtime
On many boards, communication between the kernel and the Embedded
Controller happens over an LPC bus. In these cases, the kernel config
CONFIG_CROS_EC_LPC is enabled. Some of these LPC boards contain a
Microchip Embedded Controller (MEC) that is different from the regular
EC. On these devices, the same LPC bus is used, but the protocol is
a little different. In these cases, the CONFIG_CROS_EC_LPC_MEC kernel
config is enabled. Currently, the kernel decides at compile-time whether
or not to use the MEC variant, and, when that kernel option is selected
it breaks the other boards. We would like a kind of runtime detection to
avoid this.

This patch adds that detection mechanism by probing the protocol at
runtime, first we assume that a MEC variant is connected, and if the
protocol fails it fallbacks to the regular EC. This adds a bit of
overload because we try to read twice on those LPC boards that doesn't
contain a MEC variant, but is a better solution than having to select the
EC variant at compile-time.

While here also fix the alignment in Kconfig file for this config option
replacing the spaces by tabs.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Tested-by: Nick Crews <ncrews@chromium.org>
Reviewed-by: Nick Crews <ncrews@chromium.org>
2019-06-20 12:00:32 +02:00
Enric Balletbo i Serra
4116fd25c5 platform/chrome: cros_ec_lpc: Merge cros_ec_lpc and cros_ec_lpc_reg
The cros_ec_lpc_reg files are only used by the cros_ec_lpc core and
there isn't logical separation between them. So, merge those files into
the cros_ec_lpc also allowing us to drop the header file used for the
interface between the two.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Nick Crews <ncrews@chromium.org>
2019-06-20 11:53:52 +02:00
Thomas Gleixner
d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Nick Crews
aa8b8f9f9b platform/chrome: wilco_ec: Fix unreleased lock in event_read()
When copying an event to userspace failed, the event queue
lock was never released. This fixes that.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Nick Crews <ncrews@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-06-18 10:37:21 +02:00
kbuild test robot
35b52b3315 platform/chrome: cros_ec_debugfs: cros_ec_uptime_fops can be static
Fixes: 909447f683b3 ("platform/chrome: cros_ec_debugfs: Add debugfs entry to retrieve EC uptime")
Signed-off-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-06-18 10:32:31 +02:00
Enric Balletbo i Serra
cb78a163c1 platform/chrome: cros_ec_debugfs: Fix kernel-doc comment first line
kernel-doc comments have a prescribed format. To be _particularly_
correct we should also capitalise the brief description and terminate
it with a period.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-06-18 10:07:54 +02:00
Tim Wawrzynczak
e90716a661 platform/chrome: cros_ec_debugfs: Add debugfs entry to retrieve EC uptime
The new debugfs entry 'uptime' is being made available to userspace so that
a userspace daemon can synchronize EC logs with host time.

Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
[rework based on Tim's first approach]
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Tested-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2019-06-18 10:07:13 +02:00
Vadim Pasternak
8c2eb7b646 platform/mellanox: mlxreg-hotplug: Add devm_free_irq call to remove flow
Add devm_free_irq() call to mlxreg-hotplug remove() for clean release
of devices irq resource. Fix debugobjects warning triggered by rmmod
It prevents of use-after-free memory, related to
mlxreg_hotplug_work_handler.

Issue has been reported as debugobjects warning triggered by
'rmmod mlxtreg-hotplug' flow, while running kernel with
CONFIG_DEBUG_OBJECTS* options.

[ 2489.623551] ODEBUG: free active (active state 0) object type: work_struct hint: mlxreg_hotplug_work_handler+0x0/0x7f0 [mlxreg_hotplug]
[ 2489.637097] WARNING: CPU: 5 PID: 3924 at lib/debugobjects.c:328 debug_print_object+0xfe/0x180
[ 2489.637165] RIP: 0010:debug_print_object+0xfe/0x180
?
[ 2489.637214] Call Trace:
[ 2489.637225]  __debug_check_no_obj_freed+0x25e/0x320
[ 2489.637231]  kfree+0x82/0x110
[ 2489.637238]  release_nodes+0x33c/0x4e0
[ 2489.637242]  ? devres_remove_group+0x1b0/0x1b0
[ 2489.637247]  device_release_driver_internal+0x146/0x270
[ 2489.637251]  driver_detach+0x73/0xe0
[ 2489.637254]  bus_remove_driver+0xa1/0x170
[ 2489.637261]  __x64_sys_delete_module+0x29e/0x320
[ 2489.637265]  ? __ia32_sys_delete_module+0x320/0x320
[ 2489.637268]  ? blkcg_exit_queue+0x20/0x20
[ 2489.637273]  ? task_work_run+0x7d/0x100
[ 2489.637278]  ? exit_to_usermode_loop+0x5b/0xf0
[ 2489.637281]  do_syscall_64+0x73/0x160
[ 2489.637287]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 2489.637290] RIP: 0033:0x7f95c3596fd7

The difference in release flow with and with no devm_free_irq is listed
below:

bus: 'platform': remove driver mlxreg-hotplug
 mlxreg_hotplug_remove(start)
					-> devm_free_irq (with new code)
 mlxreg_hotplug_remove (end)
 release_nodes (start)
  mlxreg-hotplug: DEVRES REL devm_hwmon_release (8 bytes)
  device: 'hwmon3': device_unregister
  PM: Removing info for No Bus:hwmon3
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (88 bytes)
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (6 bytes)
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (5 bytes)
  mlxreg-hotplug: DEVRES REL devm_irq_release (16 bytes) (no new code)
  mlxreg-hotplug: DEVRES REL devm_kzalloc_release (1376 bytes)
   ------------[ cut here ]------------ (no new code):
   ODEBUG: free active (active state 0) object type: work_struct hint: mlxreg_hotplug_work_handler

 release_nodes(end)
driver: 'mlxreg-hotplug': driver_release

Fixes: 1f976f6978 ("platform/x86: Move Mellanox platform hotplug driver to platform/mellanox")
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-06-12 11:49:20 +03:00
Vadim Pasternak
160da20b25 platform/x86: mlx-platform: Fix parent device in i2c-mux-reg device registration
Fix the issue found while running kernel with the option
CONFIG_DEBUG_TEST_DRIVER_REMOVE.
Driver 'mlx-platform' registers 'i2c_mlxcpld' device and then registers
few underlying 'i2c-mux-reg' devices:
	priv->pdev_i2c = platform_device_register_simple("i2c_mlxcpld", nr,
							 NULL, 0);
	...
	for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
		priv->pdev_mux[i] = platform_device_register_resndata(
						&mlxplat_dev->dev,
						"i2c-mux-reg", i, NULL,
						0, &mlxplat_mux_data[i],
						sizeof(mlxplat_mux_data[i]));

But actual parent of "i2c-mux-reg" device is priv->pdev_i2c->dev and
not mlxplat_dev->dev.
Patch fixes parent device parameter in a call to
platform_device_register_resndata() for "i2c-mux-reg".

It solves the race during initialization flow while 'i2c_mlxcpld.1' is
removing after probe, while 'i2c-mux-reg.0' is still in probing flow:
'i2c_mlxcpld.1'	flow:	probe -> remove -> probe.
'i2c-mux-reg.0'	flow:		  probe -> ...

[   12:621096] Registering platform device 'i2c_mlxcpld.1'. Parent at platform
[   12:621117] device: 'i2c_mlxcpld.1': device_add
[   12:621155] bus: 'platform': add device i2c_mlxcpld.1
[   12:621384] Registering platform device 'i2c-mux-reg.0'. Parent at mlxplat
[   12:621395] device: 'i2c-mux-reg.0': device_add
[   12:621425] bus: 'platform': add device i2c-mux-reg.0
[   12:621806] Registering platform device 'i2c-mux-reg.1'. Parent at mlxplat
[   12:621828] device: 'i2c-mux-reg.1': device_add
[   12:621892] bus: 'platform': add device i2c-mux-reg.1
[   12:621906] bus: 'platform': add driver i2c_mlxcpld
[   12:621996] bus: 'platform': driver_probe_device: matched device i2c_mlxcpld.1 with driver i2c_mlxcpld
[   12:622003] bus: 'platform': really_probe: probing driver i2c_mlxcpld with device i2c_mlxcpld.1
[   12:622100] i2c_mlxcpld i2c_mlxcpld.1: no default pinctrl state
[   12:622293] device: 'i2c-1': device_add
[   12:627280] bus: 'i2c': add device i2c-1
[   12:627692] device: 'i2c-1': device_add
[   12.629639] bus: 'platform': add driver i2c-mux-reg
[   12.629718] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.0 with driver i2c-mux-reg
[   12.629723] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.0
[   12.629818] i2c-mux-reg i2c-mux-reg.0: no default pinctrl state
[   12.629981] platform i2c-mux-reg.0: Driver i2c-mux-reg requests probe deferral
[   12.629986] platform i2c-mux-reg.0: Added to deferred list
[   12.629992] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.1 with driver i2c-mux-reg
[   12.629997] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.1
[   12.630091] i2c-mux-reg i2c-mux-reg.1: no default pinctrl state
[   12.630247] platform i2c-mux-reg.1: Driver i2c-mux-reg requests probe deferral
[   12.630252] platform i2c-mux-reg.1: Added to deferred list
[   12.640892] devices_kset: Moving i2c-mux-reg.0 to end of list
[   12.640900] platform i2c-mux-reg.0: Retrying from deferred list
[   12.640911] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.0 with driver i2c-mux-reg
[   12.640919] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.0
[   12.640999] i2c-mux-reg i2c-mux-reg.0: no default pinctrl state
[   12.641177] platform i2c-mux-reg.0: Driver i2c-mux-reg requests probe deferral
[   12.641187] platform i2c-mux-reg.0: Added to deferred list
[   12.641198] devices_kset: Moving i2c-mux-reg.1 to end of list
[   12.641219] platform i2c-mux-reg.1: Retrying from deferred list
[   12.641237] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.1 with driver i2c-mux-reg
[   12.641247] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.1
[   12.641331] i2c-mux-reg i2c-mux-reg.1: no default pinctrl state
[   12.641465] platform i2c-mux-reg.1: Driver i2c-mux-reg requests probe deferral
[   12.641469] platform i2c-mux-reg.1: Added to deferred list
[   12.646427] device: 'i2c-1': device_add
[   12.646647] bus: 'i2c': add device i2c-1
[   12.647104] device: 'i2c-1': device_add
[   12.669231] devices_kset: Moving i2c-mux-reg.0 to end of list
[   12.669240] platform i2c-mux-reg.0: Retrying from deferred list
[   12.669258] bus: 'platform': driver_probe_device: matched device i2c-mux-reg.0 with driver i2c-mux-reg
[   12.669263] bus: 'platform': really_probe: probing driver i2c-mux-reg with device i2c-mux-reg.0
[   12.669343] i2c-mux-reg i2c-mux-reg.0: no default pinctrl state
[   12.669585] device: 'i2c-2': device_add
[   12.669795] bus: 'i2c': add device i2c-2
[   12.670201] device: 'i2c-2': device_add
[   12.671427] i2c i2c-1: Added multiplexed i2c bus 2
[   12.671514] device: 'i2c-3': device_add
[   12.671724] bus: 'i2c': add device i2c-3
[   12.672136] device: 'i2c-3': device_add
[   12.673378] i2c i2c-1: Added multiplexed i2c bus 3
[   12.673472] device: 'i2c-4': device_add
[   12.673676] bus: 'i2c': add device i2c-4
[   12.674060] device: 'i2c-4': device_add
[   12.675861] i2c i2c-1: Added multiplexed i2c bus 4
[   12.675941] device: 'i2c-5': device_add
[   12.676150] bus: 'i2c': add device i2c-5
[   12.676550] device: 'i2c-5': device_add
[   12.678103] i2c i2c-1: Added multiplexed i2c bus 5
[   12.678193] device: 'i2c-6': device_add
[   12.678395] bus: 'i2c': add device i2c-6
[   12.678774] device: 'i2c-6': device_add
[   12.679969] i2c i2c-1: Added multiplexed i2c bus 6
[   12.680065] device: 'i2c-7': device_add
[   12.680275] bus: 'i2c': add device i2c-7
[   12.680913] device: 'i2c-7': device_add
[   12.682506] i2c i2c-1: Added multiplexed i2c bus 7
[   12.682600] device: 'i2c-8': device_add
[   12.682808] bus: 'i2c': add device i2c-8
[   12.683189] device: 'i2c-8': device_add
[   12.683907] device: 'i2c-1': device_unregister
[   12.683945] device: 'i2c-1': device_unregister
[   12.684387] device: 'i2c-1': device_create_release
[   12.684536] bus: 'i2c': remove device i2c-1
[   12.686019] i2c i2c-8: Failed to create compatibility class link
[   12.686086] ------------[ cut here ]------------
[   12.686087] can't create symlink to mux device
[   12.686224] Workqueue: events deferred_probe_work_func
[   12.686135] WARNING: CPU: 7 PID: 436 at drivers/i2c/i2c-mux.c:416 i2c_mux_add_adapter+0x729/0x7d0 [i2c_mux]
[   12.686232] RIP: 0010:i2c_mux_add_adapter+0x729/0x7d0 [i2c_mux]
[   0x190/0x190 [i2c_mux]
[   12.686300]  ? i2c_mux_alloc+0xac/0x110 [i2c_mux]
[   12.686306]  ? i2c_mux_reg_set+0x200/0x200 [i2c_mux_reg]
[   12.686313]  i2c_mux_reg_probe+0x22c/0x731 [i2c_mux_reg]
[   12.686322]  ? i2c_mux_reg_deselect+0x60/0x60 [i2c_mux_reg]
[   12.686346]  platform_drv_probe+0xa8/0x110
[   12.686351]  really_probe+0x185/0x720
[   12.686358]  driver_probe_device+0xdf/0x1f0
...
[   12.686522] i2c i2c-1: Added multiplexed i2c bus 8
[   12.686621] device: 'i2c-9': device_add
[   12.686626] kobject_add_internal failed for i2c-9 (error: -2 parent: i2c-1)
[   12.694729] i2c-core: adapter 'i2c-1-mux (chan_id 8)': can't register device (-2)
[   12.705726] i2c i2c-1: failed to add mux-adapter 8 as bus 9 (error=-2)
[   12.714494] device: 'i2c-8': device_unregister
[   12.714537] device: 'i2c-8': device_unregister

Fixes: 6613d18e90 ("platform/x86: mlx-platform: Move module from arch/x86")
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-06-12 11:49:20 +03:00
Mathew King
cb1921b17a platform/x86: intel-vbtn: Report switch events when event wakes device
When a switch event, such as tablet mode/laptop mode or docked/undocked,
wakes a device make sure that the value of the swich is reported.
Without when a device is put in tablet mode from laptop mode when it is
suspended or vice versa the device will wake up but mode will be
incorrect.

Tested by suspending a device in laptop mode and putting it in tablet
mode, the device resumes and is in tablet mode. When suspending the
device in tablet mode and putting it in laptop mode the device resumes
and is in laptop mode.

Signed-off-by: Mathew King <mathewk@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-06-12 11:49:20 +03:00
Hans de Goede
401fee8195 platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys from asus_nb_wmi
Commit 78f3ac76d9 ("platform/x86: asus-wmi: Tell the EC the OS will
handle the display off hotkey") causes the backlight to be permanently off
on various EeePC laptop models using the eeepc-wmi driver (Asus EeePC
1015BX, Asus EeePC 1025C).

The asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL) call added
by that commit is made conditional in this commit and only enabled in
the quirk_entry structs in the asus-nb-wmi driver fixing the broken
display / backlight on various EeePC laptop models.

Cc: João Paulo Rechi Vita <jprvita@endlessm.com>
Fixes: 78f3ac76d9 ("platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-06-12 11:49:20 +03:00
Thomas Gleixner
b886d83c5b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation version 2 of the license

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 315 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:17 +02:00
Thomas Gleixner
b1fb60d7df treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 414
Based on 1 normalized pattern(s):

  you can redistribute and or modify this program under the terms of
  the gnu general public license version 2 as published by the free
  software foundation this program is distributed in the hope that it
  will be useful but without any warranty without even the implied
  warranty of merchantability or fitness for a particular purpose see
  the gnu general public license for more details you should have
  received a copy of the gnu general public license along with this
  program if not write to the free software foundation inc 59 temple
  place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 2 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190113.054726165@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:14 +02:00
Thomas Gleixner
67d0ae42b8 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 392
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  publicshed by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not write to the free
  software foundation inc 59 temple place suite 330 boston ma 02111
  1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 1 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531081038.107748302@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:11 +02:00
Thomas Gleixner
2025cf9e19 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms and conditions of the gnu general public license
  version 2 as published by the free software foundation this program
  is distributed in the hope it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 263 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:37 +02:00
Thomas Gleixner
d95236782b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 287
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license v2 0 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 23 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.115786599@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:37 +02:00
Thomas Gleixner
21eb0be9ac treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 271
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license v2 as published
  by the free software foundation this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  51 franklin street fifth floor boston ma 02110 1301 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141334.424952652@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:30:30 +02:00
YueHaibing
81bc8c03e1 platform/chrome: cros_ec: Make some symbols static
Fix sparse warning:

drivers/platform/chrome/cros_ec_debugfs.c:256:30: warning: symbol 'cros_ec_console_log_fops' was not declared. Should it be static?
drivers/platform/chrome/cros_ec_debugfs.c:265:30: warning: symbol 'cros_ec_pdinfo_fops' was not declared. Should it be static?
drivers/platform/chrome/cros_ec_lightbar.c:550:24: warning: symbol 'cros_ec_lightbar_attr_group' was not declared. Should it be static?
drivers/platform/chrome/cros_ec_sysfs.c:338:24: warning: symbol 'cros_ec_attr_group' was not declared. Should it be static?
drivers/platform/chrome/cros_ec_vbc.c:104:24: warning: symbol 'cros_ec_vbc_attr_group' was not declared. Should it be static?
drivers/platform/chrome/cros_ec_lpc.c:408:25: warning: symbol 'cros_ec_lpc_pm_ops' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-06-05 17:28:53 +02:00
Raul E Rangel
79e3f1d3db platform/chrome: wilco_ec: Add version sysfs entries
Add the ability to extract version information from the EC.

Example Output:
$ cd /sys/bus/platform/devices/GOOG000C:00
$ tail build_date build_revision version model_number
==> build_date <==
04/25/19

==> build_revision <==
d2592cae0

==> version <==
00.00.14

==> model_number <==
08B6

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-by: Nick Crews <ncrews@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-06-05 17:28:42 +02:00
Nick Crews
1210d1e6ba platform/chrome: wilco_ec: Add telemetry char device interface
The Wilco Embedded Controller is able to send telemetry data
which is useful for enterprise applications. A daemon running on
the OS sends a command to the EC via a write() to a char device,
and can read the response with a read(). The write() request is
verified by the driver to ensure that it is performing only one
of the whitelisted commands, and that no extraneous data is
being transmitted to the EC. The response is passed directly
back to the reader with no modification.

The character device will appear as /dev/wilco_telemN, where N
is some small non-negative integer, starting with 0. Only one
process may have the file descriptor open at a time. The calling
userspace program needs to keep the device file descriptor open
between the calls to write() and read() in order to preserve the
response. Up to 32 bytes will be available for reading.

For testing purposes, try requesting the EC's firmware build
date, by sending the WILCO_EC_TELEM_GET_VERSION command with
argument index=3. i.e. write [0x38, 0x00, 0x03]
to the device node. An ASCII string of the build date is
returned.

Signed-off-by: Nick Crews <ncrews@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-06-05 10:14:50 +02:00
Nick Crews
f7b0bc5eaf platform/chrome: wilco_ec: Add event handling
The Wilco Embedded Controller can create custom events that
are not handled as standard ACPI objects. These events can
contain information about changes in EC controlled features,
such as errors and events in the dock or display. For example,
an event is triggered if the dock is plugged into a display
incorrectly. These events are needed for telemetry and
diagnostics reasons, and for possibly alerting the user.

These events are triggered by the EC with an ACPI Notify(0x90),
and then the BIOS reads the event buffer from EC RAM via an
ACPI method. When the OS receives these events via ACPI,
it passes them along to this driver. The events are put into
a queue which can be read by a userspace daemon via a char device
that implements read() and poll(). The event queue acts as a
circular buffer of size 64, so if there are no userspace consumers
the kernel will not run out of memory. The char device will appear at
/dev/wilco_event{n}, where n is some small non-negative integer,
starting from 0. Standard ACPI events such as the battery getting
plugged/unplugged can also come through this path, but they are
dealt with via other paths, and are ignored here.

To test, you can tail the binary data with
$ cat /dev/wilco_event0 | hexdump -ve '1/1 "%x\n"'
and then create an event by plugging/unplugging the battery.

Signed-off-by: Nick Crews <ncrews@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-06-03 18:51:14 +02:00
Heikki Krogerus
be6dc3291e platform/x86: intel_cht_int33fe: Replacing the old connections with references
Replacing the old connection descriptions with software node
references. Supplying the USB connector also a reference to
the DisplayPort while at it.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-06-03 10:55:39 +02:00
Heikki Krogerus
62499330f7 platform/x86: intel_cht_int33fe: Supply fwnodes for the external dependencies
Supplying also external devices, the DisplayPort connector
and the USB role switch, software fwnodes. After this the
driver has access to all the components tied to the USB
Type-C connector and can start creating software node
references to actually associate them with the USB Type-C
connector device.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-06-03 10:55:39 +02:00
Heikki Krogerus
9338aacf01 platform/x86: intel_cht_int33fe: Provide fwnode for the USB connector
In ACPI, and now also in DT, the USB connectors usually have
their own device nodes. In case of USB Type-C, those
connector (port) nodes are child nodes of the controller or
PHY device, in our case the fusb302. The software fwnodes
allow us to create a similar child node for fusb302 that
represents the connector also on Intel CHT.

This makes it possible replace the fusb302 specific device
properties which were deprecated with the common USB
connector properties that tcpm.c is able to use directly.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-06-03 10:55:39 +02:00
Heikki Krogerus
4ed89a005a platform/x86: intel_cht_int33fe: Provide software nodes for the devices
Software nodes provide two features that we will need later.
1) Software nodes can have references to other software nodes.
2) Software nodes can exist before a device entry is created.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-06-03 10:55:39 +02:00
Heikki Krogerus
80b915c11d platform/x86: intel_cht_int33fe: Remove unused fusb302 device property
Device property "fcs,max-sink-microwatt" is not used in
fusb302.c, so dropping it.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-06-03 10:55:38 +02:00
Heikki Krogerus
d84af48303 platform/x86: intel_cht_int33fe: Register max17047 in its own function
To make the probe function a bit more nicer looking, moving
the registration of max17047 to its own function.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-06-03 10:55:38 +02:00
Heikki Krogerus
3370db3519 usb: typec: Registering real device entries for the muxes
Registering real device entries (struct device) for the mode
muxes as well as for the orientation switches.

The Type-C mux code was deliberately attempting to avoid
creation of separate device entries for the orientation
switch and the mode switch (alternate modes) because they
are not physical devices. They are functions of a single
physical multiplexer/demultiplexer switch device.

Unfortunately because of the dependency we still have on the
underlying mux device driver, we had to put in hacks like
the one in the commit 3e3b81965c ("usb: typec: mux: Take
care of driver module reference counting") to make sure the
driver does not disappear from underneath us. Even with
those hacks we were still left with a potential NUll pointer
dereference scenario, so just creating the device entries,
and letting the core take care of the dependencies. No more
hacks needed.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-06-03 10:55:38 +02:00
Thomas Gleixner
1802d0beec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 655 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:41 -07:00
Thomas Gleixner
c942fddf87 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
Based on 3 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version [author] [kishon] [vijay] [abraham]
  [i] [kishon]@[ti] [com] this program is distributed in the hope that
  it will be useful but without any warranty without even the implied
  warranty of merchantability or fitness for a particular purpose see
  the gnu general public license for more details

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version [author] [graeme] [gregory]
  [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
  [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
  [hk] [hemahk]@[ti] [com] this program is distributed in the hope
  that it will be useful but without any warranty without even the
  implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1105 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:37 -07:00
Thomas Gleixner
1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00
Thomas Gleixner
2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00
Linus Torvalds
86c2f5d653 SPDX update for 5.2-rc2, round 2
Here is another set of reviewed patches that adds SPDX tags to different
 kernel files, based on a set of rules that are being used to parse the
 comments to try to determine that the license of the file is
 "GPL-2.0-or-later".  Only the "obvious" versions of these matches are
 included here, a number of "non-obvious" variants of text have been
 found but those have been postponed for later review and analysis.
 
 These patches have been out for review on the linux-spdx@vger mailing
 list, and while they were created by automatic tools, they were
 hand-verified by a bunch of different people, all whom names are on the
 patches are reviewers.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pule more SPDX updates from Greg KH:
 "Here is another set of reviewed patches that adds SPDX tags to
  different kernel files, based on a set of rules that are being used to
  parse the comments to try to determine that the license of the file is
  "GPL-2.0-or-later".

  Only the "obvious" versions of these matches are included here, a
  number of "non-obvious" variants of text have been found but those
  have been postponed for later review and analysis.

  These patches have been out for review on the linux-spdx@vger mailing
  list, and while they were created by automatic tools, they were
  hand-verified by a bunch of different people, all whom names are on
  the patches are reviewers"

* tag 'spdx-5.2-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (85 commits)
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 125
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 123
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 122
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 121
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 120
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 119
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 116
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 114
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 113
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 112
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 111
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 110
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 106
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 105
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 104
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 103
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 101
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 98
  ...
2019-05-24 14:31:58 -07:00
Linus Torvalds
c50bbf615f platform-drivers-x86 for v5.2-2
Some of Intel Cherrytrail based platforms depend on PMC clock to be always on.
 Here couple of quirks to the driver to support affected hardware.
 
 The following is an automated git shortlog grouped by driver:
 
 pmc_atom:
  -  Add several Beckhoff Automation boards to critclk_systems DMI table
  -  Add Lex 3I380D industrial PC to critclk_systems DMI table
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Merge tag 'platform-drivers-x86-v5.2-2' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver fixes from Andy Shevchenko:
 "Some of Intel Cherrytrail based platforms depend on PMC clock to be
  always on. Here are a couple of quirks to the driver to support
  affected hardware"

* tag 'platform-drivers-x86-v5.2-2' of git://git.infradead.org/linux-platform-drivers-x86:
  platform/x86: pmc_atom: Add several Beckhoff Automation boards to critclk_systems DMI table
  platform/x86: pmc_atom: Add Lex 3I380D industrial PC to critclk_systems DMI table
2019-05-24 10:19:26 -07:00
Thomas Gleixner
ff206db4fd treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 79
Based on 1 normalized pattern(s):

  licensed under the gpl v2 or later

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520075210.947402145@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24 17:37:51 +02:00
Thomas Gleixner
74ba9207e1 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  675 mass ave cambridge ma 02139 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 441 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24 17:36:45 +02:00
Douglas Anderson
ac5bdfdc0e platform/chrome: cros_ec_spi: Request the SPI thread be realtime
All currently known ECs in the wild are very sensitive to timing.
Specifically the ECs are known to drop a transfer if more than 8 ms
passes from the assertion of the chip select until the transfer
finishes.

Let's use the new feature introduced in the patch (spi: Allow SPI
devices to request the pumping thread be realtime") to request the SPI
pumping thread be realtime.  This means that if we get shunted off to
the SPI thread for whatever reason we won't get downgraded to low
priority.

NOTES:
- We still need to keep ourselves as high priority since the SPI core
  doesn't guarantee that all transfers end up on the pumping thread
  (in fact, it tries pretty hard to do them in the calling context).
- If future Chrome OS ECs ever fix themselves to be less sensitive
  then we could consider adding a property (or compatible string) to
  not set this property.  For now we need it across the board.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-05-24 11:35:30 +02:00
Thomas Gleixner
9ab65aff02 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details the full
  gnu general public license is included in this distribution in the
  file called copying

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 9 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154041.244154651@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 11:28:40 +02:00
Thomas Gleixner
1621633323 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  51 franklin street fifth floor boston ma 02110 1301 usa

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option [no]_[pad]_[ctrl] any later version this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not write to the free
  software foundation inc 51 franklin street fifth floor boston ma
  02110 1301 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 176 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154040.652910950@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 11:28:39 +02:00
Thomas Gleixner
ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00