| Commit message (Collapse) | Author | Age |
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Platforms may provide their own mechanisms for obtaining ROMs. Add support
for using data provided by the platform in that case.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Seth Forshee <seth.forshee@canonical.com>
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Platforms may want to provide architecture-specific functionality during
PCI enumeration. Add a pcibios_add_device() call that architectures can
override to do so.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Seth Forshee <seth.forshee@canonical.com>
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EFI provides support for providing PCI ROMs via means other than the ROM
BAR. This support vanishes after we've exited boot services, so add support
for stashing copies of the ROMs in setup_data if they're not otherwise
available.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Seth Forshee <seth.forshee@canonical.com>
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* pci/misc:
PCI/AER: Report success only when every device has AER-aware driver
Conflicts:
drivers/pci/pcie/aer/aerdrv_core.c
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When an error is detected on a PCIe device which does not have an
AER-aware driver, prevent AER infrastructure from reporting
successful error recovery.
This is because the report_error_detected() function that gets
called in the first phase of recovery process allows forward
progress even when the driver for the device does not have AER
capabilities. It seems that all callbacks (in pci_error_handlers
structure) registered by drivers that gets called during error
recovery are not mandatory. So the intention of the infrastructure
design seems to be to allow forward progress even when a specific
callback has not been registered by a driver. However, if error
handler structure itself has not been registered, it doesn't make
sense to allow forward progress.
As a result of the current design, in the case of a single device
having an AER-unaware driver or in the case of any function in a
multi-function card having an AER-unaware driver, a successful
recovery is reported.
Typical scenario this happens is when a PCI device is detached
from a KVM host and the pci-stub driver on the host claims the
device. The pci-stub driver does not have error handling capabilities
but the AER infrastructure still reports that the device recovered
successfully.
The changes proposed here leaves the device(s)in an unrecovered state
if the driver for the device or for any device in the subtree
does not have error handler structure registered. This reflects
the true state of the device and prevents any partial recovery (or no
recovery at all) reported as successful.
[bhelgaas: changelog]
Signed-off-by: Vijay Mohan Pandarathil <vijaymohan.pandarathil@hp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Linas Vepstas <linasvepstas@gmail.com>
Reviewed-by: Myron Stowe <myron.stowe@redhat.com>
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* pci/don-sriov:
PCI: Remove useless "!dev" tests
PCI: Use spec names for SR-IOV capability fields
PCI: Provide method to reduce the number of total VFs supported
PCI: SRIOV control and status via sysfs
PCI: Use is_visible() with boot_vga attribute for pci_dev
PCI: Add pci_device_type to pdev's device struct
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Some implementations of SRIOV provide a capability structure
value of TotalVFs that is greater than what the software can support.
Provide a method to reduce the capability structure reported value
to the value the driver can support.
This ensures sysfs reports the current capability of the system,
hardware and software.
Example for its use: igb & ixgbe -- report 8 & 64 as TotalVFs,
but drivers only support 7 & 63 maximum.
Signed-off-by: Donald Dutile <ddutile@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Provide files under sysfs to determine the maximum number of VFs
an SR-IOV-capable PCIe device supports, and methods to enable and
disable the VFs on a per-device basis.
Currently, VF enablement by SR-IOV-capable PCIe devices is done
via driver-specific module parameters. If not setup in modprobe files,
it requires admin to unload & reload PF drivers with number of desired
VFs to enable. Additionally, the enablement is system wide: all
devices controlled by the same driver have the same number of VFs
enabled. Although the latter is probably desired, there are PCI
configurations setup by system BIOS that may not enable that to occur.
Two files are created for the PF of PCIe devices with SR-IOV support:
sriov_totalvfs Contains the maximum number of VFs the device
could support as reported by the TotalVFs register
in the SR-IOV extended capability.
sriov_numvfs Contains the number of VFs currently enabled on
this device as reported by the NumVFs register in
the SR-IOV extended capability.
Writing zero to this file disables all VFs.
Writing a positive number to this file enables that
number of VFs.
These files are readable for all SR-IOV PF devices. Writes to the
sriov_numvfs file are effective only if a driver that supports the
sriov_configure() method is attached.
Signed-off-by: Donald Dutile <ddutile@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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pci_ext_cfg_avail() doesn't use the "struct pci_dev *" passed to
it, and there's no requirement that a host bridge even be represented
by a pci_dev. This drops the pci_ext_cfg_avail() parameter.
[bhelgaas: changelog]
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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It supports both PCI root bus and PCI bus under PCI bridge.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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It is main portion of pci_rescan_bus().
Separate it out and prepare to use it for PCI root bus hot add later.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"A fairly quiet release again, a couple of relatively small new
features and a bunch of driver specific work including yet more code
elimination and fixes from Axel Lin.
- Addidion of linear_min_sel for offsetting linear selectors in the
helpers.
- Support for continuous voltage ranges for regulators with extremely
high resolution.
- Drivers for AS3711, DA9055, MAX9873, TPS51632, TPS80031 and ARM
vexpress."
Fix up trivial conflict (due to typo fix) in palmas-regulator.c
* tag 'regulator-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (80 commits)
regulator: core: Fix logic to determinate if regulator can change voltage
regulator: s5m8767: Fix to work even if no DVS gpio present
regulator: s5m8767: Fix to read the first DVS register.
regulator: s5m8767: Fix to work when platform registers less regulators
regulator: gpio-regulator: gpio_set_value should use cansleep
regulator: gpio-regulator: Fix logical error in for() loop
regulator: anatop: Use regulator_[get|set]_voltage_sel_regmap
regulator: anatop: Use linear_min_sel with linear mapping
regulator: max1586: Implement get_voltage_sel callback
regulator: lp8788-buck: Kill _gpio_request function
regulator: tps80031: Convert tps80031_ldo_ops to linear_min_sel and list_voltage_linear
regulator: lp8788-ldo: Remove val array in lp8788_config_ldo_enable_mode
regulator: gpio-regulator: Add ifdef CONFIG_OF guard for regulator_gpio_of_match
regulator: palmas: Convert palmas_ops_smps to regulator_[get|set]_voltage_sel_regmap
regulator: palmas: Return raw register values as the selectors in [get|set]_voltage_sel
regulators: add regulator_can_change_voltage() function
regulator: tps51632: Ensure [base|max]_voltage_uV pdata settings are valid
regulator: wm831x-dcdc: Add MODULE_ALIAS for wm831x-boostp
regulator: wm831x-dcdc: Ensure selected voltage falls within requested range
regulator: tps51632: Use linear_min_sel and regulator_[map|list]_voltage_linear
...
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If consumers wish to set voltages based on a tolerance it stands to reason
that they will also want to query for support in the same manner.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
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avoids needs for CONFIG_REGULATOR in sdhci.c
Signed-off-by: Philip Rakity <prakity@nvidia.com>
Reviewed-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-min
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Some drivers (at least 3 drivers) have such variant of linear mapping that
the first few selectors are invalid and the reset are linear mapping.
Let's support this case in core.
This patch adds linear_min_sel in struct regulator_desc,
so we can allow specific minimal selector for starting linear mapping.
Then extends regulator_[map|list]_voltage_linear() to support this feature.
Note that for selectors less than min_linear_index, we need count them to
n_voltages so regulator_list_voltage() won't fail while checking the boundary
for selector before calling list_voltage callback.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-max8997
Conflicts:
drivers/regulator/max8997.c
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Add device tree based discovery support for max8997.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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The MAXIM MAX8973 high-efficiency, three phase, DC-DC step-down
switching regulator delievers up to 9A of output current. Each
phase operates at a 2MHz fixed frequency with a 120 deg shift
from the adjacent phase, allowing the use of small magnetic
component.
Add regulator driver for this device.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-hotplug
Conflicts:
drivers/regulator/tps6586x-regulator.c
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Moving regulator node parsing to regulator driver in place
of parsing it on mfd driver.
The motivation for this change are:
- MFD core driver should not depends on regulator and able
to instantiate device without regulator.
- The API for matching regulators are in regulator core and
it is good that regulator driver only calls this API.
- Regulator specific support should be in regulator driver only
to ease any enhancement/modification for regulators.
- The regulator driver is now registered as mfd sub device and
all regulator registration is done from single probe call.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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'topic/max8925', 'topic/gpio' and 'topic/tps65090' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-hotplug
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The TPS65090's DCDC output can also be enable/disable through the
external digital input signal. Add support for enable/disable
either through register access via I2C or through external
control inputs. The external control inputs can be driven through
GPIOs also and hence adding support for passing the GPIO number.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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TPS65090 supports the two LDOs, LDO1 and LDO2. These are
always ON regulators. The output on these LDOs are available
once the input voltage available for these LDOs.
Add support for these LDOs regulators.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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To make the names proper and more appropriate:
Rename the driver name from tps65090-regulator to tps65090-pmic.
Rename the regulators from TPS65090_ID_* to TPS65090_REGULATOR_*
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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MFD driver registers the regulator driver once per device and
hence it is require to register all regulators in single probe
call.
Following are details of changes done to achieve this:
- Move the regulator enums to mfd header and remove the
tps65090-regulator.h as it does not contain more info.
- Add max regulator and register all regulators even if there
is no regulator init data from platform.
- Convert regulator init data to pointer type in platform data.
- Add input supply name in regulator desc to provide input supply.
- Separate desc information from driver information.
- Disable external control bit to have control through register write.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Some regulators can set any voltage within the constraints range,
not being limited to specified operating points.
This patch makes it possible to describe such regulator and makes
the regulator_is_supported_voltage() function behave correctly.
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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The TPS51632 is a driverless step down controller with
serial control. Advanced features such as D-Cap+
architecture with overlapping pulse support and OSR
overshoot reduction provide fast transient response,
lowest output capacitance and high efficiency.
The TPS51632 supports both I2C and DVFS interfaces
(through PWM) for dynamic control of the output voltage
and current monitor telemetry.
Add regulator driver for TPS51632.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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This is the Regulator patch for the DA9055 PMIC and has got dependency on
the DA9055 MFD core.
This patch support all of the DA9055 regulators. The output voltages are
fully programmable through I2C interface only. The platform data with regulation
constraints is passed down from the board to the regulator.
This patch is functionaly tested on SMDK6410 board. DA9055 Evaluation board
was connected to the SMDK6410 board.
Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Introduce a regulator_can_change_voltage() function for the subsytems or
drivers which might check if applying voltage change is possible and use
special workaround code when the driver is used with fixed regulators or
regulators with disabled ability to change the voltage.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Some Arizona device support a 1.8V output mode. Enable this in the driver.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID subsystem updates from Jiri Kosina:
1) Support for HID over I2C bus has been added by Benjamin Tissoires.
ACPI device discovery is still in the works.
2) Support for Win8 Multitiouch protocol is being added, most work done
by Benjamin Tissoires as well
3) EIO/ERESTARTSYS is fixed in hiddev/hidraw, fixes by Andrew Duggan
and Jiri Kosina
4) ION iCade driver added by Bastien Nocera
5) Support for a couple new Roccat devices has been added by Stefan
Achatz
6) HID sensor hubs are now auto-detected instead of having to list all
the VID/PID combinations in the blacklist array
7) other random fixes and support for new device IDs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (65 commits)
HID: i2c-hid: add mutex protecting open/close race
Revert "HID: sensors: add to special driver list"
HID: sensors: autodetect USB HID sensor hubs
HID: hidp: fallback to input session properly if hid is blacklisted
HID: i2c-hid: fix ret_count check
HID: i2c-hid: fix i2c_hid_get_raw_report count mismatches
HID: i2c-hid: remove extra .irq field in struct i2c_hid
HID: i2c-hid: reorder allocation/free of buffers
HID: i2c-hid: fix memory corruption due to missing hid declaration
HID: i2c-hid: remove superfluous include
HID: i2c-hid: remove unneeded test in i2c_hid_remove
HID: i2c-hid: i2c_hid_get_report may fail
HID: i2c-hid: also call i2c_hid_free_buffers in i2c_hid_remove
HID: i2c-hid: fix error messages
HID: i2c-hid: fix return paths
HID: i2c-hid: remove unused static declarations
HID: i2c-hid: fix i2c_hid_dbg macro
HID: i2c-hid: fix checkpatch.pl warning
HID: i2c-hid: enhance Kconfig
HID: i2c-hid: change I2C name
...
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'for-3.8/i2c-hid', 'for-3.8/multitouch', 'for-3.8/roccat', 'for-3.8/sensors' and 'for-3.8/upstream' into for-linus
Conflicts:
drivers/hid/hid-core.c
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This patch against kernel 3.7.0-rc8 fixes a kernel oops when turning on the
bluetooth mouse with id 0458:0058 [1].
The mouse in question supports both input and hid sessions, however it is
blacklisted in drivers/hid/hid-core.c so the input session is one that should
be used. Long ago (around kernel 3.0.0) some changes in the bluetooth
subsystem made the kernel do not fallback to input session when hid session is
not supported or blacklisted. This patch restore that behaviour by making the
kernel try the input session if hid_add_device returns ENODEV.
The patch exports hid_ignore() from hid-core.c so that it can be used in the
bluetooth subsystem.
[1] https://bugzilla.kernel.org/show_bug.cgi?id=39882
Signed-off-by: Lamarque V. Souza <lamarque@gmail.com>
Acked-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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It should not be necessary to add IDs for HID sensor hubs to lists in
hid-core.c and hid-sensor-hub.c. So instead of a whitelist, autodetect such USB
HID sensor hubs, based on a collection of type physical inside a useage page of
type sensor. If some sensor hubs stil must be usable as raw devices, a
blacklist might be created.
Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Acked-by: "Pandruvada, Srinivas" <srinivas.pandruvada@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This patch extracts the test (slot->frame == mt->frame) so that it can
be used in third party drivers.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Currently, there is no way to know the index of the current field
in the .input_mapping and .event callbacks when this field is inside
an array of HID fields.
This patch adds this index to the struct hid_usage so that this
information is available to input_mapping and event callbacks.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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HID spec details special values for the HID field unit exponent.
Basically, the range [0x8..0xf] correspond to [-8..-1], so this is
a standard two's complement on a half-byte.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Exporting the function allows us to calculate the resolution in third
party drivers like hid-multitouch.
This patch also complete the function with additional valid axes.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Microsoft published the protocol specification of HID over i2c:
http://msdn.microsoft.com/en-us/library/windows/hardware/hh852380.aspx
This patch introduces an implementation of this protocol.
This implementation does not includes the ACPI part of the specification.
This will come when ACPI 5.0 devices enumeration will be available.
Once the ACPI part is done, OEM will not have to declare HID over I2C
devices in their platform specific driver.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial branch from Jiri Kosina:
"Usual stuff -- comment/printk typo fixes, documentation updates, dead
code elimination."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
HOWTO: fix double words typo
x86 mtrr: fix comment typo in mtrr_bp_init
propagate name change to comments in kernel source
doc: Update the name of profiling based on sysfs
treewide: Fix typos in various drivers
treewide: Fix typos in various Kconfig
wireless: mwifiex: Fix typo in wireless/mwifiex driver
messages: i2o: Fix typo in messages/i2o
scripts/kernel-doc: check that non-void fcts describe their return value
Kernel-doc: Convention: Use a "Return" section to describe return values
radeon: Fix typo and copy/paste error in comments
doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c
various: Fix spelling of "asynchronous" in comments.
Fix misspellings of "whether" in comments.
eisa: Fix spelling of "asynchronous".
various: Fix spelling of "registered" in comments.
doc: fix quite a few typos within Documentation
target: iscsi: fix comment typos in target/iscsi drivers
treewide: fix typo of "suport" in various comments and Kconfig
treewide: fix typo of "suppport" in various comments
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I've legally changed my name with New York State, the US Social Security
Administration, et al. This patch propagates the name change and change
in initials and login to comments in the kernel source as well.
Signed-off-by: Nadia Yvette Chambers <nyc@holomorphy.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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