Commit Graph

1500 Commits

Author SHA1 Message Date
Linus Torvalds
a897a10141 power supply and reset changes for the v4.13 series
* New drivers
  - Linear ltc3651 charger driver
  - Motorola CPCAP battery fuel-gauge driver
 * New chip/feature support
  - bq27xxx: prepare for chip data setup
  - axp20x_battery: support max charge current setup
 * New core features
  - add Apple Brick ID type
  - support "supplied-from" device property for generic ACPI/pdata support
  - support strings for sysfs properties representing enums
  - introduce battery-info (backend is DT only for now)
  - provide reboot-mode header globally
 * Misc. fixes
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Merge tag 'for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "New drivers:
   - Linear ltc3651 charger driver
   - Motorola CPCAP battery fuel-gauge driver

  New chip/feature support:
   - bq27xxx: prepare for chip data setup
   - axp20x_battery: support max charge current setup

  New core features:
   - add Apple Brick ID type
   - support "supplied-from" device property for generic ACPI/pdata support
   - support strings for sysfs properties representing enums
   - introduce battery-info (backend is DT only for now)
   - provide reboot-mode header globally

  .. and misc fixes"

* tag 'for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (39 commits)
  power: supply: sbs-battery: Don't needlessly set CAPACITY_MODE
  power: supply: sbs-battery: Prevent CAPACITY_MODE races
  power: supply: bq24735: remove incorrect le16_to_cpu calls
  power: supply: sbs-battery: remove incorrect le16_to_cpu calls
  power: supply: cpcap-charger: Add missing power_supply_config
  power: supply: twl4030-charger: move allocation of iio channel to the beginning
  power: supply: twl4030-charger: allocate iio by devm_iio_channel_get() and fix error path
  power: supply: core: constify psy_tcd_ops.
  dt-bindings: power: supply: cpcap-battery: Add power-supplies property
  dt-bindings: power: supply: move max8903-charger.txt to proper location
  dt-bindings: power: supply: move maxim,max14656.txt to proper location
  power: supply: twl4030_charger: Use sysfs_match_string() helper
  power: reset: reboot-mode: Make include file global
  power: supply: axp20x_battery: add DT support for battery max constant charge current
  power: supply: axp20x_battery: add support for DT battery
  power: supply: bq27xxx: Add power_supply_battery_info support
  power: supply: bq27xxx: Add chip data memory read/write support
  power: supply: bq27xxx: Add bulk transfer bus methods
  dt-bindings: power: supply: bq27xxx: Add monitored-battery documentation
  power: supply: core: Add power_supply_prop_precharge
  ...
2017-07-04 14:25:14 -07:00
Linus Torvalds
f4dd029ee0 Char/Misc patches for 4.13-rc1
Here is the "big" char/misc driver patchset for 4.13-rc1.
 
 Lots of stuff in here, a large thunderbolt update, w1 driver header
 reorg, the new mux driver subsystem, google firmware driver updates, and
 a raft of other smaller things.  Full details in the shortlog.
 
 All of these have been in linux-next for a while with the only reported
 issue being a merge problem with this tree and the jc-docs tree in the
 w1 documentation area.  The fix should be obvious for what to do when it
 happens, if not, we can send a follow-up patch for it afterward.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc updates from Greg KH:
 "Here is the "big" char/misc driver patchset for 4.13-rc1.

  Lots of stuff in here, a large thunderbolt update, w1 driver header
  reorg, the new mux driver subsystem, google firmware driver updates,
  and a raft of other smaller things. Full details in the shortlog.

  All of these have been in linux-next for a while with the only
  reported issue being a merge problem with this tree and the jc-docs
  tree in the w1 documentation area"

* tag 'char-misc-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (147 commits)
  misc: apds990x: Use sysfs_match_string() helper
  mei: drop unreachable code in mei_start
  mei: validate the message header only in first fragment.
  DocBook: w1: Update W1 file locations and names in DocBook
  mux: adg792a: always require I2C support
  nvmem: rockchip-efuse: add support for rk322x-efuse
  nvmem: core: add locking to nvmem_find_cell
  nvmem: core: Call put_device() in nvmem_unregister()
  nvmem: core: fix leaks on registration errors
  nvmem: correct Broadcom OTP controller driver writes
  w1: Add subsystem kernel public interface
  drivers/fsi: Add module license to core driver
  drivers/fsi: Use asynchronous slave mode
  drivers/fsi: Add hub master support
  drivers/fsi: Add SCOM FSI client device driver
  drivers/fsi/gpio: Add tracepoints for GPIO master
  drivers/fsi: Add GPIO based FSI master
  drivers/fsi: Document FSI master sysfs files in ABI
  drivers/fsi: Add error handling for slave
  drivers/fsi: Add tracepoints for low-level operations
  ...
2017-07-03 20:55:59 -07:00
Linus Torvalds
974668417b driver core patches for 4.13-rc1
Here is the big driver core update for 4.13-rc1.
 
 The large majority of this is a lot of cleanup of old fields in the
 driver core structures and their remaining usages in random drivers.
 All of those fixes have been reviewed by the various subsystem
 maintainers.  There's also some small firmware updates in here, a new
 kobject uevent api interface that makes userspace interaction easier,
 and a few other minor things.
 
 All of these have been in linux-next for a long while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the big driver core update for 4.13-rc1.

  The large majority of this is a lot of cleanup of old fields in the
  driver core structures and their remaining usages in random drivers.
  All of those fixes have been reviewed by the various subsystem
  maintainers. There's also some small firmware updates in here, a new
  kobject uevent api interface that makes userspace interaction easier,
  and a few other minor things.

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

* tag 'driver-core-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (56 commits)
  arm: mach-rpc: ecard: fix build error
  zram: convert remaining CLASS_ATTR() to CLASS_ATTR_RO()
  driver-core: remove struct bus_type.dev_attrs
  powerpc: vio_cmo: use dev_groups and not dev_attrs for bus_type
  powerpc: vio: use dev_groups and not dev_attrs for bus_type
  USB: usbip: convert to use DRIVER_ATTR_RW
  s390: drivers: convert to use DRIVER_ATTR_RO/WO
  platform: thinkpad_acpi: convert to use DRIVER_ATTR_RO/RW
  pcmcia: ds: convert to use DRIVER_ATTR_RO
  wireless: ipw2x00: convert to use DRIVER_ATTR_RW
  net: ehea: convert to use DRIVER_ATTR_RO
  net: caif: convert to use DRIVER_ATTR_RO
  TTY: hvc: convert to use DRIVER_ATTR_RW
  PCI: pci-driver: convert to use DRIVER_ATTR_WO
  IB: nes: convert to use DRIVER_ATTR_RW
  HID: hid-core: convert to use DRIVER_ATTR_RO and drv_groups
  arm: ecard: fix dev_groups patch typo
  tty: serdev: use dev_groups and not dev_attrs for bus_type
  sparc: vio: use dev_groups and not dev_attrs for bus_type
  hid: intel-ish-hid: use dev_groups and not dev_attrs for bus_type
  ...
2017-07-03 20:27:48 -07:00
Linus Torvalds
9a715cd543 TTY/Serial patches for 4.13-rc1
Here is the large tty/serial patchset for 4.13-rc1.
 
 A lot of tty and serial driver updates are in here, along with some
 fixups for some __get/put_user usages that were reported.  Nothing huge,
 just lots of development by a number of different developers, full
 details in the shortlog.
 
 All of these have been in linux-next for a while.  There will be a merge
 issue with the arm-soc tree in the include/linux/platform_data/atmel.h
 file.  Stephen has sent out a fixup for it, so it shouldn't be that
 difficult to merge.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here is the large tty/serial patchset for 4.13-rc1.

  A lot of tty and serial driver updates are in here, along with some
  fixups for some __get/put_user usages that were reported. Nothing
  huge, just lots of development by a number of different developers,
  full details in the shortlog.

  All of these have been in linux-next for a while"

* tag 'tty-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (71 commits)
  tty: serial: lpuart: add a more accurate baud rate calculation method
  tty: serial: lpuart: add earlycon support for imx7ulp
  tty: serial: lpuart: add imx7ulp support
  dt-bindings: serial: fsl-lpuart: add i.MX7ULP support
  tty: serial: lpuart: add little endian 32 bit register support
  tty: serial: lpuart: refactor lpuart32_{read|write} prototype
  tty: serial: lpuart: introduce lpuart_soc_data to represent SoC property
  serial: imx-serial - move DMA buffer configuration to DT
  serial: imx: Enable RTSD only when needed
  serial: imx: Remove unused members from imx_port struct
  serial: 8250: 8250_omap: Fix race b/w dma completion and RX timeout
  serial: 8250: Fix THRE flag usage for CAP_MINI
  tty/serial: meson_uart: update to stable bindings
  dt-bindings: serial: Add bindings for the Amlogic Meson UARTs
  serial: Delete dead code for CIR serial ports
  serial: sirf: make of_device_ids const
  serial/mpsc: switch to dma_alloc_attrs
  tty: serial: Add Actions Semi Owl UART earlycon
  dt-bindings: serial: Document Actions Semi Owl UARTs
  tty/serial: atmel: make the driver DT only
  ...
2017-07-03 20:04:16 -07:00
Linus Torvalds
cbcd4f08aa Staging/IIO patches for 4.13-rc1
Here's the large set of staging and iio driver patches for 4.13-rc1.
 After over 500 patches, we removed about 200 more lines of code than we
 added, not great, but we added some new IIO drivers for unsupported
 hardware, so it's an overall win.
 
 Also here are lots of small fixes, and some tty core api additions (with
 the tty maintainer's ack) for the speakup drivers, those are finally
 getting some much needed cleanups and are looking much better now than
 before.  Full details in the shortlog.
 
 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 'staging-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO updates from Greg KH:
 "Here's the large set of staging and iio driver patches for 4.13-rc1.

  After over 500 patches, we removed about 200 more lines of code than
  we added, not great, but we added some new IIO drivers for unsupported
  hardware, so it's an overall win.

  Also here are lots of small fixes, and some tty core api additions
  (with the tty maintainer's ack) for the speakup drivers, those are
  finally getting some much needed cleanups and are looking much better
  now than before. Full details in the shortlog.

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

* tag 'staging-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (529 commits)
  staging: lustre: replace kmalloc with kmalloc_array
  Staging: ion: fix code style warning from NULL comparisons
  staging: fsl-mc: make dprc.h header private
  staging: fsl-mc: move mc-cmd.h contents in the public header
  staging: fsl-mc: move mc-sys.h contents in the public header
  staging: fsl-mc: fix a few implicit includes
  staging: fsl-mc: remove dpmng API files
  staging: fsl-mc: move rest of mc-bus.h to private header
  staging: fsl-mc: move couple of definitions to public header
  staging: fsl-mc: move irq domain creation prototype to public header
  staging: fsl-mc: turn several exported functions static
  staging: fsl-mc: delete prototype of unimplemented function
  staging: fsl-mc: delete duplicated function prototypes
  staging: fsl-mc: decouple the mc-bus public headers from dprc.h
  staging: fsl-mc: drop useless #includes
  staging: fsl-mc: be consistent when checking strcmp() return
  staging: fsl-mc: move comparison before strcmp() call
  staging: speakup: make function ser_to_dev static
  staging: ks7010: fix spelling mistake: "errror" -> "error"
  staging: rtl8192e: fix spelling mistake: "respose" -> "response"
  ...
2017-07-03 19:57:30 -07:00
Greg Kroah-Hartman
24040a5837 usb: changes for v4.13 merge window
This time around we have a total of 57 non-merge commits. A list of
 most important changes follows:
 
 - Improvements to dwc3 tracing interface
 - Initial dual-role support for dwc3
 - Improvements to how we handle DMA resources in dwc3
 - A new f_uac1 implementation which much more flexible
 - Removal of AVR32 bits
 - Improvements to f_mass_storage driver
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Merge tag 'usb-for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-testing

Felipe writes:

usb: changes for v4.13 merge window

This time around we have a total of 57 non-merge commits. A list of
most important changes follows:

- Improvements to dwc3 tracing interface
- Initial dual-role support for dwc3
- Improvements to how we handle DMA resources in dwc3
- A new f_uac1 implementation which much more flexible
- Removal of AVR32 bits
- Improvements to f_mass_storage driver
2017-06-20 11:39:34 +08:00
Ruslan Bilovol
0591bc2360 usb: gadget: add f_uac1 variant based on a new u_audio api
This patch adds a new function 'f_uac1'
(f_uac1 with virtual "ALSA card") that
uses recently created u_audio API. Comparing
to legacy f_uac1 function implementation it
doesn't require any real Audio codec to be
present on the device. In f_uac1 audio
streams are simply sinked to and sourced
from a virtual ALSA sound card created
using u_audio API.

Legacy f_uac1 approach is to write audio
samples directly to existing ALSA sound
card

f_uac1 approach is more generic/flexible
one - create an ALSA sound card that
represents USB Audio function and allows to
be used by userspace application that
may choose to do whatever it wants with the
data received from the USB Host and choose
to provide whatever it wants as audio data
to the USB Host.

f_uac1 also has capture support (gadget->host)
thanks to easy implementation via u_audio.
By default, capture interface has 48000kHz/2ch
configuration, same as playback channel has.

f_uac1 descriptors naming convention
uses f_uac2 driver naming convention that
makes it more common and meaningful.

Comparing to f_uac1_legacy, the f_uac1 doesn't
have volume/mute functionality. This is because
the f_uac1 volume/mute feature unit was dummy
implementation since that driver creation (2009)
and never had any real volume control or mute
functionality, so there is no any difference
here.

Since f_uac1 functionality, exposed
interface to userspace (virtual ALSA card),
input parameters are so different comparing
to f_uac1_legacy, that there is no any
reason to keep them in the same file/module,
and separate function was created.

g_audio can be built using one of existing
UAC functions (f_uac1, f_uac1_legacy or f_uac2)

Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-06-19 09:22:47 +03:00
Ruslan Bilovol
d355339eec usb: gadget: function: make current f_uac1 implementation legacy
Before introducing new f_uac1 function (with virtual
ALSA card) make current implementation legacy.

This includes renaming of existing files, some
variables, config options and documentation

Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-06-19 09:22:47 +03:00
Felipe Balbi
1aed4178ec Documentation: ABI: sysfs-class-udc: remove duplicated entry
maximum_speed entry was duplicated. Remove one instance.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-06-13 13:21:04 +03:00
Felipe Balbi
104165686e usb: gadget: udc: add a 'function' sysfs file
This file will print out the name of the currently running USB Gadget
Driver. It can be read even when there are no functions loaded.

Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-06-13 13:21:04 +03:00
Benjamin Gaignard
9eba381bf8 iio: make stm32 trigger driver use INDIO_HARDWARE_TRIGGERED mode
Add validate function to be use to use the correct trigger.
Add an attribute to configure device mode like for quadrature and
enable modes

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-06-11 15:59:05 +01:00
Christopher Bostic
a7ec9371dd drivers/fsi: Document FSI master sysfs files in ABI
Add info for sysfs scan file in Documentaiton ABI/testing

Signed-off-by: Christopher Bostic <cbostic@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-09 11:52:09 +02:00
Mika Westerberg
e6b245ccd5 thunderbolt: Add support for host and device NVM firmware upgrade
Starting from Intel Falcon Ridge the NVM firmware can be upgraded by
using DMA configuration based mailbox commands. If we detect that the
host or device (device support starts from Intel Alpine Ridge) has the
DMA configuration based mailbox we expose NVM information to the
userspace as two separate Linux NVMem devices: nvm_active and
nvm_non_active. The former is read-only portion of the active NVM which
firmware upgrade tools can be use to find out suitable NVM image if the
device identification strings are not enough.

The latter is write-only portion where the new NVM image is to be
written by the userspace. It is up to the userspace to find out right
NVM image (the kernel does very minimal validation). The ICM firmware
itself authenticates the new NVM firmware and fails the operation if it
is not what is expected.

We also expose two new sysfs files per each switch: nvm_version and
nvm_authenticate which can be used to read the active NVM version and
start the upgrade process.

We also introduce safe mode which is the mode a switch goes when it does
not have properly authenticated firmware. In this mode the switch only
accepts a couple of commands including flashing a new NVM firmware image
and triggering power cycle.

This code is based on the work done by Amir Levy and Michael Jamet.

Signed-off-by: Michael Jamet <michael.jamet@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-09 11:42:43 +02:00
Mika Westerberg
f67cf49117 thunderbolt: Add support for Internal Connection Manager (ICM)
Starting from Intel Falcon Ridge the internal connection manager running
on the Thunderbolt host controller has been supporting 4 security
levels. One reason for this is to prevent DMA attacks and only allow
connecting devices the user trusts.

The internal connection manager (ICM) is the preferred way of connecting
Thunderbolt devices over software only implementation typically used on
Macs. The driver communicates with ICM using special Thunderbolt ring 0
(control channel) messages. In order to handle these messages we add
support for the ICM messages to the control channel.

The security levels are as follows:

  none - No security, all tunnels are created automatically
  user - User needs to approve the device before tunnels are created
  secure - User need to approve the device before tunnels are created.
	   The device is sent a challenge on future connects to be able
	   to verify it is actually the approved device.
  dponly - Only Display Port and USB tunnels can be created and those
           are created automatically.

The security levels are typically configurable from the system BIOS and
by default it is set to "user" on many systems.

In this patch each Thunderbolt device will have either one or two new
sysfs attributes: authorized and key. The latter appears for devices
that support secure connect.

In order to identify the device the user can read identication
information, including UUID and name of the device from sysfs and based
on that make a decision to authorize the device. The device is
authorized by simply writing 1 to the "authorized" sysfs attribute. This
is following the USB bus device authorization mechanism. The secure
connect requires an additional challenge step (writing 2 to the
"authorized" attribute) in future connects when the key has already been
stored to the NVM of the device.

Non-ICM systems (before Alpine Ridge) continue to use the existing
functionality and the security level is set to none. For systems with
Alpine Ridge, even on Apple hardware, we will use ICM.

This code is based on the work done by Amir Levy and Michael Jamet.

Signed-off-by: Michael Jamet <michael.jamet@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-09 11:42:43 +02:00
Mika Westerberg
72ee33907b thunderbolt: Read vendor and device name from DROM
The device DROM contains name of the vendor and device among other
things. Extract this information and expose it to the userspace via two
new attributes.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Reviewed-by: Michael Jamet <michael.jamet@intel.com>
Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-09 11:42:42 +02:00
Mika Westerberg
bfe778ac49 thunderbolt: Convert switch to a device
Thunderbolt domain consists of switches that are connected to each
other, forming a bus. This will convert each switch into a real Linux
device structure and adds them to the domain. The advantage here is
that we get all the goodies from the driver core, like reference
counting and sysfs hierarchy for free.

Also expose device identification information to the userspace via new
sysfs attributes.

In order to support internal connection manager (ICM) we separate switch
configuration into its own function (tb_switch_configure()) which is
only called by the existing native connection manager implementation
used on Macs.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Reviewed-by: Michael Jamet <michael.jamet@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-09 11:42:42 +02:00
H. Nikolaus Schaller
49fb384653 power: supply: twl4030-charger: remove nonstandard max_current sysfs attribute
Since we now support the standard 'input_current_limit' property by

commit 3fb319c2cd ("power: supply: twl4030-charger: add writable INPUT_CURRENT_LIMIT property")

we can now remove the nonstandard 'max_current' sysfs attribute.

See Documentation/power/power_supply_class.txt line 125

Both are functionally equivalent. From ABI point of view it is just a rename
of the property.

This also removes the entry in Documentation/ABI/testing/sysfs-class-power-twl4030

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-06-08 13:05:28 +02:00
Peter Rosin
a3b02a9c65 mux: minimal mux subsystem
Add a new minimalistic subsystem that handles multiplexer controllers.
When multiplexers are used in various places in the kernel, and the
same multiplexer controller can be used for several independent things,
there should be one place to implement support for said multiplexer
controller.

A single multiplexer controller can also be used to control several
parallel multiplexers, that are in turn used by different subsystems
in the kernel, leading to a need to coordinate multiplexer accesses.
The multiplexer subsystem handles this coordination.

Thanks go out to Lars-Peter Clausen, Jonathan Cameron, Rob Herring,
Wolfram Sang, Paul Gortmaker, Dan Carpenter, Colin Ian King, Greg
Kroah-Hartman and last but certainly not least to Philipp Zabel for
helpful comments, reviews, patches and general encouragement!

Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-03 19:29:26 +09:00
Badhri Jagan Sridharan
bab3548078 usb: typec: Add a sysfs node to manage port type
User space applications in some cases have the need to enforce a
specific port type(DFP/UFP/DRP). This change allows userspace to
attempt setting the desired port type. Low level drivers can
however reject the request if the specific port type is not supported.

Signed-off-by: Badhri Jagan Sridharan <Badhri@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-03 18:02:58 +09:00
Greg Kroah-Hartman
ca9280d1f8 First set of new device support, features and cleanups for IIO in the 4.13 cycle
Two entirely new drivers in here plus the usual range of cleanups and features.
 
 New device support
 * ad5064
   - add ltc2631, ltc2633 and ltc2635 support.
 * bma180
   - trivial support for bma250e (new id)
 * hid-sensor-rotation
   - add relative orientation and geometric orientation support.
 * isl29028
   - add isl29030 support (its effectively the same part from a driver point of
   view)
 * maxim_thermocouple
   - add max31856 id.
 * meson-saradc
   - add meson8b SoC adc support.
 * ti-adc084s021
   - new driver and bindings.
 * ti-adc108s102
   - new driver and bindings.
 
 Staging graduations
 * isl29028
 
 Features
 * bma180
   - ACPI enumeration for BMA250E which is used in various x86 tablets.
 * hi8453
   - add raw access rather than only events.
 * hid-sensor-hub
   - Implement batch mode in which we can set a threshold on the amount of time
   between data coming from the fifos.  This is the first device to do this
   rather than use a watershed on the number of samples.
 * hts221
   - power management support
 * lsm6dsx
   - add system power management support.
 * rpr0521
   - sampling frequency read / write
 * stm32-trigger
   - add support for TRG02 triggers.
 * tsl2583
   - runtime power management support.
 
 Cleanups
 * core
   - inkern: fix a double unlock in iio_read_available_channel_raw when raw
   value doesn't appear to be raw (error path).
   - fixup accidental sizeof pointer in iio_device_add_mask_type.
 * docs
   - fix an accidental duplicated line in sysfs-bus-iio-meas-spec.
 * tools
   - use local include/uapi headers to ensure always up to date.
   - increase length of allowed trigger names.
 * ad9834
   - symbolic to octal permissions.
 * ade7753
   - symbolic to octal permissions.
   - fix indentation
 * ade7754
   - symbolic to octal permissions.
 * ade7758
   - symbolic to octal permissions.
 - ade7854
   - symbolic to octal permissions.
 * as3935
   - move out of storm check to given consistent results for raw and processed
   values.
 * bmp280
   - fix bme280 naming in Kconfig help.
 * hi8435
   - avoid garbage on event after enable.
   - add missing in_voltage_sensing_mode_available to list possible enum options.
   - handle the reset gpio with the obvious polarity rather than relying on
   DT to provide it correctly.
 * hid-sensors
   - fix a wrong error path scrubbing of return values.
 * hid-sensors-accel
   - drop static on a local variable
 * hid-sensors-rotation
   - Add missing scale and offset property parsing support.
 * ina2xx
   - Fix a bad use of GENMASK and some typos and whitespace issues.
 * isl29018
   - only declare the ACPI table when ACPI is enabled.
 * isl29028
   - fix proximity sleep times.
 * lsm6dsx
   - replace ifdef CONFIG_PM with __maybe_unused to avoid the complexity of
   dealing with the various PM config variables.
 * meson-saradc
   - mark meson_sar_adc_data static and const.
 * rcar-gyroadc
   - derive the interface clock speed from the fck clock on the basis they are
   the same actual clock.
   - drop the now unused if clock from the bindings.
 * rpr0521
   - disable sensor when marked as such rather than always enabling it.
   - poweroff if probe fails and we can talk to device.
   - make sure device powered off when it doesn't need to be on.
   - use sizeof rather than hardcoded size on value read.
   - whitespace fixup.
   - reorder channel numbers ready for buffered support which didn't quite
   make this pull request.
 * st-accel
   - fix platform data initialization to allow remove and reprobe.
 * st-pressure
   - fix platform data initialization to allow remove and reprobe.
 * tsl2x7x
   - S_IRUGO, S_IWUSR to octal values
   - rename driver for consistency with more recent drivers
   - drop FSF mailing address
   - replace DEVICE_ATTR macros with the shorter DEVICE_ATTR_RW form and
   relevant function renames.
 * zpa2326
   - report an error for consistency with other error paths.
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Merge tag 'iio-for-4.13a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First set of new device support, features and cleanups for IIO in the 4.13 cycle

Two entirely new drivers in here plus the usual range of cleanups and features.

New device support
* ad5064
  - add ltc2631, ltc2633 and ltc2635 support.
* bma180
  - trivial support for bma250e (new id)
* hid-sensor-rotation
  - add relative orientation and geometric orientation support.
* isl29028
  - add isl29030 support (its effectively the same part from a driver point of
  view)
* maxim_thermocouple
  - add max31856 id.
* meson-saradc
  - add meson8b SoC adc support.
* ti-adc084s021
  - new driver and bindings.
* ti-adc108s102
  - new driver and bindings.

Staging graduations
* isl29028

Features
* bma180
  - ACPI enumeration for BMA250E which is used in various x86 tablets.
* hi8453
  - add raw access rather than only events.
* hid-sensor-hub
  - Implement batch mode in which we can set a threshold on the amount of time
  between data coming from the fifos.  This is the first device to do this
  rather than use a watershed on the number of samples.
* hts221
  - power management support
* lsm6dsx
  - add system power management support.
* rpr0521
  - sampling frequency read / write
* stm32-trigger
  - add support for TRG02 triggers.
* tsl2583
  - runtime power management support.

Cleanups
* core
  - inkern: fix a double unlock in iio_read_available_channel_raw when raw
  value doesn't appear to be raw (error path).
  - fixup accidental sizeof pointer in iio_device_add_mask_type.
* docs
  - fix an accidental duplicated line in sysfs-bus-iio-meas-spec.
* tools
  - use local include/uapi headers to ensure always up to date.
  - increase length of allowed trigger names.
* ad9834
  - symbolic to octal permissions.
* ade7753
  - symbolic to octal permissions.
  - fix indentation
* ade7754
  - symbolic to octal permissions.
* ade7758
  - symbolic to octal permissions.
- ade7854
  - symbolic to octal permissions.
* as3935
  - move out of storm check to given consistent results for raw and processed
  values.
* bmp280
  - fix bme280 naming in Kconfig help.
* hi8435
  - avoid garbage on event after enable.
  - add missing in_voltage_sensing_mode_available to list possible enum options.
  - handle the reset gpio with the obvious polarity rather than relying on
  DT to provide it correctly.
* hid-sensors
  - fix a wrong error path scrubbing of return values.
* hid-sensors-accel
  - drop static on a local variable
* hid-sensors-rotation
  - Add missing scale and offset property parsing support.
* ina2xx
  - Fix a bad use of GENMASK and some typos and whitespace issues.
* isl29018
  - only declare the ACPI table when ACPI is enabled.
* isl29028
  - fix proximity sleep times.
* lsm6dsx
  - replace ifdef CONFIG_PM with __maybe_unused to avoid the complexity of
  dealing with the various PM config variables.
* meson-saradc
  - mark meson_sar_adc_data static and const.
* rcar-gyroadc
  - derive the interface clock speed from the fck clock on the basis they are
  the same actual clock.
  - drop the now unused if clock from the bindings.
* rpr0521
  - disable sensor when marked as such rather than always enabling it.
  - poweroff if probe fails and we can talk to device.
  - make sure device powered off when it doesn't need to be on.
  - use sizeof rather than hardcoded size on value read.
  - whitespace fixup.
  - reorder channel numbers ready for buffered support which didn't quite
  make this pull request.
* st-accel
  - fix platform data initialization to allow remove and reprobe.
* st-pressure
  - fix platform data initialization to allow remove and reprobe.
* tsl2x7x
  - S_IRUGO, S_IWUSR to octal values
  - rename driver for consistency with more recent drivers
  - drop FSF mailing address
  - replace DEVICE_ATTR macros with the shorter DEVICE_ATTR_RW form and
  relevant function renames.
* zpa2326
  - report an error for consistency with other error paths.
2017-05-29 15:53:42 +02:00
Peter Rajnoha
e622ec579b doc: update kernel version in sysfs-uevent ABI doc
We expect the changes described in ABI/testing/sysfs-uevent doc to appear in 4.13.

Signed-off-by: Peter Rajnoha <prajnoha@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-27 11:51:36 +02:00
Peter Rajnoha
f36776fafb kobject: support passing in variables for synthetic uevents
This patch makes it possible to pass additional arguments in addition
to uevent action name when writing /sys/.../uevent attribute. These
additional arguments are then inserted into generated synthetic uevent
as additional environment variables.

Before, we were not able to pass any additional uevent environment
variables for synthetic uevents. This made it hard to identify such uevents
properly in userspace to make proper distinction between genuine uevents
originating from kernel and synthetic uevents triggered from userspace.
Also, it was not possible to pass any additional information which would
make it possible to optimize and change the way the synthetic uevents are
processed back in userspace based on the originating environment of the
triggering action in userspace. With the extra additional variables, we are
able to pass through this extra information needed and also it makes it
possible to synchronize with such synthetic uevents as they can be clearly
identified back in userspace.

The format for writing the uevent attribute is following:

    ACTION [UUID [KEY=VALUE ...]

There's no change in how "ACTION" is recognized - it stays the same
("add", "change", "remove"). The "ACTION" is the only argument required
to generate synthetic uevent, the rest of arguments, that this patch
adds support for, are optional.

The "UUID" is considered as transaction identifier so it's possible to
use the same UUID value for one or more synthetic uevents in which case
we logically group these uevents together for any userspace listeners.
The "UUID" is expected to be in "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
format where "x" is a hex digit. The value appears in uevent as
"SYNTH_UUID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" environment variable.

The "KEY=VALUE" pairs can contain alphanumeric characters only. It's
possible to define zero or more more pairs - each pair is then delimited
by a space character " ". Each pair appears in synthetic uevents as
"SYNTH_ARG_KEY=VALUE" environment variable. That means the KEY name gains
"SYNTH_ARG_" prefix to avoid possible collisions with existing variables.
To pass the "KEY=VALUE" pairs, it's also required to pass in the "UUID"
part for the synthetic uevent first.

If "UUID" is not passed in, the generated synthetic uevent gains
"SYNTH_UUID=0" environment variable automatically so it's possible to
identify this situation in userspace when reading generated uevent and so
we can still make a difference between genuine and synthetic uevents.

Signed-off-by: Peter Rajnoha <prajnoha@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-25 18:30:51 +02:00
Jeremy Kerr
7fbcf3afe6 drivers/serial: Add driver for Aspeed virtual UART
This change adds a driver for the 16550-based Aspeed virtual UART
device. We use a similar process to the of_serial driver for device
probe, but expose some VUART-specific functions through sysfs too.

The VUART is two UART 'front ends' connected by their FIFO (no actual
serial line in between). One is on the BMC side (management controller)
and one is on the host CPU side.

This driver is for the BMC side. The sysfs files allow the BMC
userspace, which owns the system configuration policy, to specify at
what IO port and interrupt number the host side will appear to the host
on the Host <-> BMC LPC bus. It could be different on a different system
(though most of them use 3f8/4).

OpenPOWER host firmware doesn't like it when the host-side of the
VUART's FIFO is not drained. This driver only disables host TX discard
mode when the port is in use. We set the VUART enabled bit when we bind
to the device, and clear it on unbind.

We don't want to do this on open/release, as the host may be using this
bit to configure serial output modes, which is independent of whether
the devices has been opened by BMC userspace.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-18 16:19:16 +02:00
Srinivas Pandruvada
138bc7969c iio: hid-sensor-hub: Implement batch mode
HID sensor hubs using Integrated Senor Hub (ISH) has added capability to
support batch mode. This allows host processor to go to sleep for extended
duration, while the sensor hub is storing samples in its internal buffers.

'Commit f4f4673b75 ("iio: add support for hardware fifo")' implements
feature in IIO core to implement such feature. This feature is used in
bmc150-accel-core.c to implement batch mode. This implementation allows
software device buffer watermark to be used as a hint to adjust hardware
FIFO.

But HID sensor hubs don't allow to change internal buffer size of FIFOs.
Instead an additional usage id to set "maximum report latency" is defined.
This allows host to go to sleep upto this latency period without getting
any report. Since there is no ABI to set this latency, a new attribute
"hwfifo_timeout" is added so that user mode can specify a latency.

This change checks presence of usage id to get/set maximum report latency
and if present, it will expose hwfifo_timeout.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-05-16 19:44:01 +01:00
Linus Torvalds
857f864014 pci-v4.12-changes
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Merge tag 'pci-v4.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 - add framework for supporting PCIe devices in Endpoint mode (Kishon
   Vijay Abraham I)

 - use non-postable PCI config space mappings when possible (Lorenzo
   Pieralisi)

 - clean up and unify mmap of PCI BARs (David Woodhouse)

 - export and unify Function Level Reset support (Christoph Hellwig)

 - avoid FLR for Intel 82579 NICs (Sasha Neftin)

 - add pci_request_irq() and pci_free_irq() helpers (Christoph Hellwig)

 - short-circuit config access failures for disconnected devices (Keith
   Busch)

 - remove D3 sleep delay when possible (Adrian Hunter)

 - freeze PME scan before suspending devices (Lukas Wunner)

 - stop disabling MSI/MSI-X in pci_device_shutdown() (Prarit Bhargava)

 - disable boot interrupt quirk for ASUS M2N-LR (Stefan Assmann)

 - add arch-specific alignment control to improve device passthrough by
   avoiding multiple BARs in a page (Yongji Xie)

 - add sysfs sriov_drivers_autoprobe to control VF driver binding
   (Bodong Wang)

 - allow slots below PCI-to-PCIe "reverse bridges" (Bjorn Helgaas)

 - fix crashes when unbinding host controllers that don't support
   removal (Brian Norris)

 - add driver for MicroSemi Switchtec management interface (Logan
   Gunthorpe)

 - add driver for Faraday Technology FTPCI100 host bridge (Linus
   Walleij)

 - add i.MX7D support (Andrey Smirnov)

 - use generic MSI support for Aardvark (Thomas Petazzoni)

 - make Rockchip driver modular (Brian Norris)

 - advertise 128-byte Read Completion Boundary support for Rockchip
   (Shawn Lin)

 - advertise PCI_EXP_LNKSTA_SLC for Rockchip root port (Shawn Lin)

 - convert atomic_t to refcount_t in HV driver (Elena Reshetova)

 - add CPU IRQ affinity in HV driver (K. Y. Srinivasan)

 - fix PCI bus removal in HV driver (Long Li)

 - add support for ThunderX2 DMA alias topology (Jayachandran C)

 - add ThunderX pass2.x 2nd node MCFG quirk (Tomasz Nowicki)

 - add ITE 8893 bridge DMA alias quirk (Jarod Wilson)

 - restrict Cavium ACS quirk only to CN81xx/CN83xx/CN88xx devices
   (Manish Jaggi)

* tag 'pci-v4.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (146 commits)
  PCI: Don't allow unbinding host controllers that aren't prepared
  ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP
  MAINTAINERS: Add PCI Endpoint maintainer
  Documentation: PCI: Add userguide for PCI endpoint test function
  tools: PCI: Add sample test script to invoke pcitest
  tools: PCI: Add a userspace tool to test PCI endpoint
  Documentation: misc-devices: Add Documentation for pci-endpoint-test driver
  misc: Add host side PCI driver for PCI test function device
  PCI: Add device IDs for DRA74x and DRA72x
  dt-bindings: PCI: dra7xx: Add DT bindings to enable unaligned access
  PCI: dwc: dra7xx: Workaround for errata id i870
  dt-bindings: PCI: dra7xx: Add DT bindings for PCI dra7xx EP mode
  PCI: dwc: dra7xx: Add EP mode support
  PCI: dwc: dra7xx: Facilitate wrapper and MSI interrupts to be enabled independently
  dt-bindings: PCI: Add DT bindings for PCI designware EP mode
  PCI: dwc: designware: Add EP mode support
  Documentation: PCI: Add binding documentation for pci-test endpoint function
  ixgbe: Use pcie_flr() instead of duplicating it
  IB/hfi1: Use pcie_flr() instead of duplicating it
  PCI: imx6: Fix spelling mistake: "contol" -> "control"
  ...
2017-05-08 19:03:25 -07:00
Fabrice Gasnier
6fb34812c2 iio: stm32 trigger: Add support for TRGO2 triggers
Add support for TRGO2 trigger that can be found on STM32F7.
Add additional master modes supported by TRGO2.
Register additional "tim[1/8]_trgo2" triggers for timer1 & timer8.
Detect TRGO2 timer capability (master mode selection 2).

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-05-07 16:08:10 +01:00
Stefan Brüns
de01d65795 iio: Documentation: sysfs-bus-iio-meas-spec: Remove (partially) duplicate line
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-05-07 14:39:17 +01:00
Linus Torvalds
c6a677c6f3 Staging/IIO patches for 4.12-rc1
Here is the big staging tree update for 4.12-rc1.  And it's a big one,
 adding about 350k new lines of crap^Wcode, mostly all in a big dump of
 media drivers from Intel.  But there's other new drivers in here as
 well, yet-another-wifi driver, new IIO drivers, and a new crypto
 accelerator.  We also deleted a bunch of stuff, mostly in patch
 cleanups, but also the Android ION code has shrunk a lot, and the
 Android low memory killer driver was finally deleted, much to the
 celebration of the -mm developers.
 
 All of these have been in linux-next with a few build issues that will
 show up when you merge to your tree, I'll follow up with fixes for those
 after this gets merged.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO updates from Greg KH:
 "Here is the big staging tree update for 4.12-rc1.

  It's a big one, adding about 350k new lines of crap^Wcode, mostly all
  in a big dump of media drivers from Intel. But there's other new
  drivers in here as well, yet-another-wifi driver, new IIO drivers, and
  a new crypto accelerator.

  We also deleted a bunch of stuff, mostly in patch cleanups, but also
  the Android ION code has shrunk a lot, and the Android low memory
  killer driver was finally deleted, much to the celebration of the -mm
  developers.

  All of these have been in linux-next with a few build issues that will
  show up when you merge to your tree"

Merge conflicts in the new rtl8723bs driver (due to the wifi changes
this merge window) handled as per linux-next, courtesy of Stephen
Rothwell.

* tag 'staging-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1182 commits)
  staging: fsl-mc/dpio: add cpu <--> LE conversion for dpaa2_fd
  staging: ks7010: remove line continuations in quoted strings
  staging: vt6656: use tabs instead of spaces
  staging: android: ion: Fix unnecessary initialization of static variable
  staging: media: atomisp: fix range checking on clk_num
  staging: media: atomisp: fix misspelled word in comment
  staging: media: atomisp: kmap() can't fail
  staging: atomisp: remove #ifdef for runtime PM functions
  staging: atomisp: satm include directory is gone
  atomisp: remove some more unused files
  atomisp: remove hmm_load/store/clear indirections
  atomisp: kill off mmgr_free
  atomisp: clean up the hmm init/cleanup indirections
  atomisp: handle allocation calls before init in the hmm layer
  staging: fsl-dpaa2/eth: Add maintainer for Ethernet driver
  staging: fsl-dpaa2/eth: Add TODO file
  staging: fsl-dpaa2/eth: Add trace points
  staging: fsl-dpaa2/eth: Add driver specific stats
  staging: fsl-dpaa2/eth: Add ethtool support
  staging: fsl-dpaa2/eth: Add Freescale DPAA2 Ethernet driver
  ...
2017-05-05 18:16:23 -07:00
Linus Torvalds
0be75179df Driver core patches for 4.12-rc1
Very tiny pull request for 4.12-rc1 for the driver core this time
 around.
 
 There are some documentation fixes, an eventpoll.h fixup to make it
 easier for the libc developers to take our header files directly, and
 some very minor driver core fixes and changes.
 
 All have been in linux-next for a very long time with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Very tiny pull request for 4.12-rc1 for the driver core this time
  around.

  There are some documentation fixes, an eventpoll.h fixup to make it
  easier for the libc developers to take our header files directly, and
  some very minor driver core fixes and changes.

  All have been in linux-next for a very long time with no reported
  issues"

* tag 'driver-core-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  Revert "kref: double kref_put() in my_data_handler()"
  driver core: don't initialize 'parent' in device_add()
  drivers: base: dma-mapping: use nth_page helper
  Documentation/ABI: add information about cpu_capacity
  debugfs: set no_llseek in DEFINE_DEBUGFS_ATTRIBUTE
  eventpoll.h: add missing epoll event masks
  eventpoll.h: fix epoll event masks
2017-05-04 18:27:46 -07:00
Linus Torvalds
8f28472a73 USB patches for 4.12-rc1
Here is the big USB patchset for 4.12-rc1.
 
 Lots of good stuff here, after many many many attempts, the kernel
 finally has a working typeC interface, many thanks to the Heikki and
 Guenter and others who have taken the time to get this merged.  It
 wasn't an easy path for them at all.
 
 There's also a staging driver that uses this new api, which is why it's
 coming in through this tree.
 
 Along with that, there's the usual huge number of changes for gadget
 drivers, xhci, and other stuff.  Johan also finally refactored pretty
 much every driver that was looking at USB endpoints to do it in a common
 way, which will help prevent any "badly-formed" devices from causing
 problems in drivers.  That too wasn't a simple task.
 
 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 'usb-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big USB patchset for 4.12-rc1.

  Lots of good stuff here, after many many many attempts, the kernel
  finally has a working typeC interface, many thanks to Heikki and
  Guenter and others who have taken the time to get this merged. It
  wasn't an easy path for them at all.

  There's also a staging driver that uses this new api, which is why
  it's coming in through this tree.

  Along with that, there's the usual huge number of changes for gadget
  drivers, xhci, and other stuff. Johan also finally refactored pretty
  much every driver that was looking at USB endpoints to do it in a
  common way, which will help prevent any "badly-formed" devices from
  causing problems in drivers. That too wasn't a simple task.

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

* tag 'usb-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (263 commits)
  staging: typec: Fairchild FUSB302 Type-c chip driver
  staging: typec: Type-C Port Controller Interface driver (tcpci)
  staging: typec: USB Type-C Port Manager (tcpm)
  usb: host: xhci: remove #ifdef around PM functions
  usb: musb: don't mark of_dev_auxdata as initdata
  usb: misc: legousbtower: Fix buffers on stack
  USB: Revert "cdc-wdm: fix "out-of-sync" due to missing notifications"
  usb: Make sure usb/phy/of gets built-in
  USB: storage: e-mail update in drivers/usb/storage/unusual_devs.h
  usb: host: xhci: print correct command ring address
  usb: host: xhci: delete sp_dma_buffers for scratchpad
  usb: host: xhci: using correct specification chapter reference for DCBAAP
  xhci: switch to pci_alloc_irq_vectors
  usb: host: xhci-plat: set resume_quirk() for R-Car controllers
  usb: host: xhci-plat: add resume_quirk()
  usb: host: xhci-plat: enable clk in resume timing
  usb: host: plat: Enable xHCI plat runtime PM
  USB: serial: ftdi_sio: add device ID for Microsemi/Arrow SF2PLUS Dev Kit
  USB: serial: constify static arrays
  usb: fix some references for /proc/bus/usb
  ...
2017-05-04 18:03:51 -07:00
Linus Torvalds
76f1948a79 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
Pull livepatch updates from Jiri Kosina:

 - a per-task consistency model is being added for architectures that
   support reliable stack dumping (extending this, currently rather
   trivial set, is currently in the works).

   This extends the nature of the types of patches that can be applied
   by live patching infrastructure. The code stems from the design
   proposal made [1] back in November 2014. It's a hybrid of SUSE's
   kGraft and RH's kpatch, combining advantages of both: it uses
   kGraft's per-task consistency and syscall barrier switching combined
   with kpatch's stack trace switching. There are also a number of
   fallback options which make it quite flexible.

   Most of the heavy lifting done by Josh Poimboeuf with help from
   Miroslav Benes and Petr Mladek

   [1] https://lkml.kernel.org/r/20141107140458.GA21774@suse.cz

 - module load time patch optimization from Zhou Chengming

 - a few assorted small fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
  livepatch: add missing printk newlines
  livepatch: Cancel transition a safe way for immediate patches
  livepatch: Reduce the time of finding module symbols
  livepatch: make klp_mutex proper part of API
  livepatch: allow removal of a disabled patch
  livepatch: add /proc/<pid>/patch_state
  livepatch: change to a per-task consistency model
  livepatch: store function sizes
  livepatch: use kstrtobool() in enabled_store()
  livepatch: move patching functions into patch.c
  livepatch: remove unnecessary object loaded check
  livepatch: separate enabled and patched states
  livepatch/s390: add TIF_PATCH_PENDING thread flag
  livepatch/s390: reorganize TIF thread flag bits
  livepatch/powerpc: add TIF_PATCH_PENDING thread flag
  livepatch/x86: add TIF_PATCH_PENDING thread flag
  livepatch: create temporary klp_update_patch_state() stub
  x86/entry: define _TIF_ALLWORK_MASK flags explicitly
  stacktrace/x86: add function for detecting reliable stack traces
2017-05-02 18:24:16 -07:00
Linus Torvalds
8d65b08deb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Millar:
 "Here are some highlights from the 2065 networking commits that
  happened this development cycle:

   1) XDP support for IXGBE (John Fastabend) and thunderx (Sunil Kowuri)

   2) Add a generic XDP driver, so that anyone can test XDP even if they
      lack a networking device whose driver has explicit XDP support
      (me).

   3) Sparc64 now has an eBPF JIT too (me)

   4) Add a BPF program testing framework via BPF_PROG_TEST_RUN (Alexei
      Starovoitov)

   5) Make netfitler network namespace teardown less expensive (Florian
      Westphal)

   6) Add symmetric hashing support to nft_hash (Laura Garcia Liebana)

   7) Implement NAPI and GRO in netvsc driver (Stephen Hemminger)

   8) Support TC flower offload statistics in mlxsw (Arkadi Sharshevsky)

   9) Multiqueue support in stmmac driver (Joao Pinto)

  10) Remove TCP timewait recycling, it never really could possibly work
      well in the real world and timestamp randomization really zaps any
      hint of usability this feature had (Soheil Hassas Yeganeh)

  11) Support level3 vs level4 ECMP route hashing in ipv4 (Nikolay
      Aleksandrov)

  12) Add socket busy poll support to epoll (Sridhar Samudrala)

  13) Netlink extended ACK support (Johannes Berg, Pablo Neira Ayuso,
      and several others)

  14) IPSEC hw offload infrastructure (Steffen Klassert)"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2065 commits)
  tipc: refactor function tipc_sk_recv_stream()
  tipc: refactor function tipc_sk_recvmsg()
  net: thunderx: Optimize page recycling for XDP
  net: thunderx: Support for XDP header adjustment
  net: thunderx: Add support for XDP_TX
  net: thunderx: Add support for XDP_DROP
  net: thunderx: Add basic XDP support
  net: thunderx: Cleanup receive buffer allocation
  net: thunderx: Optimize CQE_TX handling
  net: thunderx: Optimize RBDR descriptor handling
  net: thunderx: Support for page recycling
  ipx: call ipxitf_put() in ioctl error path
  net: sched: add helpers to handle extended actions
  qed*: Fix issues in the ptp filter config implementation.
  qede: Fix concurrency issue in PTP Tx path processing.
  stmmac: Add support for SIMATIC IOT2000 platform
  net: hns: fix ethtool_get_strings overflow in hns driver
  tcp: fix wraparound issue in tcp_lp
  bpf, arm64: fix jit branch offset related to ldimm64
  bpf, arm64: implement jiting of BPF_XADD
  ...
2017-05-02 16:40:27 -07:00
Linus Torvalds
c58d4055c0 A reasonably busy cycle for documentation this time around. There is a new
guide for user-space API documents, rather sparsely populated at the
 moment, but it's a start.  Markus improved the infrastructure for
 converting diagrams.  Mauro has converted much of the USB documentation
 over to RST.  Plus the usual set of fixes, improvements, and tweaks.
 
 There's a bit more than the usual amount of reaching out of Documentation/
 to fix comments elsewhere in the tree; I have acks for those where I could
 get them.
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Merge tag 'docs-4.12' of git://git.lwn.net/linux

Pull documentation update from Jonathan Corbet:
 "A reasonably busy cycle for documentation this time around. There is a
  new guide for user-space API documents, rather sparsely populated at
  the moment, but it's a start. Markus improved the infrastructure for
  converting diagrams. Mauro has converted much of the USB documentation
  over to RST. Plus the usual set of fixes, improvements, and tweaks.

  There's a bit more than the usual amount of reaching out of
  Documentation/ to fix comments elsewhere in the tree; I have acks for
  those where I could get them"

* tag 'docs-4.12' of git://git.lwn.net/linux: (74 commits)
  docs: Fix a couple typos
  docs: Fix a spelling error in vfio-mediated-device.txt
  docs: Fix a spelling error in ioctl-number.txt
  MAINTAINERS: update file entry for HSI subsystem
  Documentation: allow installing man pages to a user defined directory
  Doc/PM: Sync with intel_powerclamp code behavior
  zr364xx.rst: usb/devices is now at /sys/kernel/debug/
  usb.rst: move documentation from proc_usb_info.txt to USB ReST book
  convert philips.txt to ReST and add to media docs
  docs-rst: usb: update old usbfs-related documentation
  arm: Documentation: update a path name
  docs: process/4.Coding.rst: Fix a couple of document refs
  docs-rst: fix usb cross-references
  usb: gadget.h: be consistent at kernel doc macros
  usb: composite.h: fix two warnings when building docs
  usb: get rid of some ReST doc build errors
  usb.rst: get rid of some Sphinx errors
  usb/URB.txt: convert to ReST and update it
  usb/persist.txt: convert to ReST and add to driver-api book
  usb/hotplug.txt: convert to ReST and add to driver-api book
  ...
2017-05-02 10:21:17 -07:00
Linus Torvalds
08be881064 ACPI updates for v4.12-rc1
- Update the core device enumeration code to make it more internally
    consistent and robust and drop the force_remove sysfs attribute
    that could be used to tell it to ignore errors on device
    hot-removal which was dangerous in general and no real and
    still relevant use cases for it could be found (Rafael Wysocki,
    Michal Hocko).
 
  - Make the core device enumeration code use _PXM to associate
    platform devices created by it with specific NUMA nodes (Shanker
    Donthineni).
 
  - Extend the CPPC library by adding more sysfs entries for
    performance capabilities to it and making it use the lowest
    nonlinear performance parameter (Prashanth Prakash).
 
  - Make the CPU online more consistent with CPU initialization in
    the ACPI processor driver (Prashanth Prakash).
 
  - Update the AC and battery drivers to help them avoid attaching to
    devices that cannot be handled by them and update the axp288_charger
    power supply driver to work correctly on ACPI systems without the
    INT3496 device (Hans de Goede).
 
  - Add an ACPI operation region driver for the Intel CHT Whiskey Cove
    PMIC and update the xpower operation region driver to work without
    IIO which isn't really necessary for it to work (Hans de Goede).
 
  - Add a new entry for Dell Inspiron 7537 to the _REV quirk blacklist
    (Kai Heng Feng).
 
  - Make the code in the ACPI video driver easier to follow by adding
    symbols and comments to it (Dmitry Frank).
 
  - Update ACPI documentation and drop a function that has no users
    from the tables-handling code (Cao jin, Baoquan He).
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Merge tag 'acpi-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These are some device enumeration code changes, updates of the AC and
  battery drivers to help them avoid attaching to devices that cannot be
  handled by them, new operation region driver for the Intel CHT Whiskey
  Cove PMIC, new sysfs entries for CPPC performance capabilities, a new
  _REV quirk blacklist entry and a couple of assorted minor fixes and
  cleanups.

  Specifics:

   - Update the core device enumeration code to make it more internally
     consistent and robust and drop the force_remove sysfs attribute
     that could be used to tell it to ignore errors on device
     hot-removal which was dangerous in general and no real and still
     relevant use cases for it could be found (Rafael Wysocki, Michal
     Hocko).

   - Make the core device enumeration code use _PXM to associate
     platform devices created by it with specific NUMA nodes (Shanker
     Donthineni).

   - Extend the CPPC library by adding more sysfs entries for
     performance capabilities to it and making it use the lowest
     nonlinear performance parameter (Prashanth Prakash).

   - Make the CPU online more consistent with CPU initialization in the
     ACPI processor driver (Prashanth Prakash).

   - Update the AC and battery drivers to help them avoid attaching to
     devices that cannot be handled by them and update the
     axp288_charger power supply driver to work correctly on ACPI
     systems without the INT3496 device (Hans de Goede).

   - Add an ACPI operation region driver for the Intel CHT Whiskey Cove
     PMIC and update the xpower operation region driver to work without
     IIO which isn't really necessary for it to work (Hans de Goede).

   - Add a new entry for Dell Inspiron 7537 to the _REV quirk blacklist
     (Kai Heng Feng).

   - Make the code in the ACPI video driver easier to follow by adding
     symbols and comments to it (Dmitry Frank).

   - Update ACPI documentation and drop a function that has no users
     from the tables-handling code (Cao jin, Baoquan He)"

* tag 'acpi-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / PMIC: Stop xpower OPRegion handler relying on IIO
  ACPI / PMIC: Add opregion driver for Intel CHT Whiskey Cove PMIC
  ACPI / scan: Avoid enumerating devices more than once
  ACPI / scan: Apply default enumeration to devices with ACPI drivers
  power: supply: axp288_charger: Only wait for INT3496 device if present
  ACPI / AC: Add a blacklist with PMIC ACPI HIDs with a native charger driver
  ACPI / battery: Add a blacklist with PMIC ACPI HIDs with a native battery driver
  ACPI / battery: Fix acpi_battery_exit on acpi_battery_init_async errors
  ACPI / utils: Add new acpi_dev_present helper
  ACPI / video: add comments about subtle cases
  ACPI / video: get rid of magic numbers and use enum instead
  ACPI / doc: linuxized-acpica.txt: fix typos
  ACPI / blacklist: add _REV quirk for Dell Inspiron 7537
  ACPI / tables: Drop acpi_parse_entries() which is not used
  ACPI / CPPC: add sysfs entries for CPPC perf capabilities
  ACPI / CPPC: Read lowest nonlinear perf in cppc_get_perf_caps()
  ACPI / platform: Update platform device NUMA node based on _PXM method
  ACPI / Processor: Drop setup_max_cpus check from acpi_processor_add()
  ACPI / scan: Drop support for force_remove
2017-05-01 14:13:28 -07:00
Bjorn Helgaas
ef1b5dad5a Merge branch 'pci/virtualization' into next
* pci/virtualization:
  ixgbe: Use pcie_flr() instead of duplicating it
  IB/hfi1: Use pcie_flr() instead of duplicating it
  PCI: Call pcie_flr() from reset_chelsio_generic_dev()
  PCI: Call pcie_flr() from reset_intel_82599_sfp_virtfn()
  PCI: Export pcie_flr()
  PCI: Add sysfs sriov_drivers_autoprobe to control VF driver binding
  PCI: Avoid FLR for Intel 82579 NICs

Conflicts:
	include/linux/pci.h
2017-04-28 10:36:12 -05:00
Bodong Wang
0e7df22401 PCI: Add sysfs sriov_drivers_autoprobe to control VF driver binding
Sometimes it is not desirable to bind SR-IOV VFs to drivers.  This can save
host side resource usage by VF instances that will be assigned to VMs.

Add a new PCI sysfs interface "sriov_drivers_autoprobe" to control that
from the PF.  To modify it, echo 0/n/N (disable probe) or 1/y/Y (enable
probe) to:

  /sys/bus/pci/devices/<DOMAIN:BUS:DEVICE.FUNCTION>/sriov_drivers_autoprobe

Note that this must be done before enabling VFs.  The change will not take
effect if VFs are already enabled.  Simply, one can disable VFs by setting
sriov_numvfs to 0, choose whether to probe or not, and then re-enable the
VFs by restoring sriov_numvfs.

[bhelgaas: changelog, ABI doc]
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
2017-04-20 08:53:51 -05:00
Greg Kroah-Hartman
ac9d947683 Two changes for this v4.12-rc1:
- Add sysfs entry for role switch
 - Update gadget state after gadget back from suspend
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Merge tag 'usb-ci-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next

Peter writes:

Two changes for this v4.12-rc1:
- Add sysfs entry for role switch
- Update gadget state after gadget back from suspend
2017-04-18 16:52:20 +02:00
Benjamin Gaignard
2a830a45ff iio: stm32 trigger: Add counter enable modes
Device counting could be controlled by the level or the edges of
a trigger.
in_count0_enable_mode attibute allow to set the control mode.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-04-14 15:09:04 +01:00
Benjamin Gaignard
4adec7da05 iio: stm32 trigger: Add quadrature encoder device
One of the features of STM32 trigger hardware block is a quadrature
encoder that can counts up/down depending of the levels and edges
of the selected external pins.

This patch allow to read/write the counter, get it direction,
set/get quadrature modes and get scale factor.

When counting up preset value is the limit of the counter.
When counting down the counter start from preset value down to 0.
This preset value could be set/get by using
/sys/bus/iio/devices/iio:deviceX/in_count0_preset attribute.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Reviewed-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-04-14 15:08:31 +01:00
Peter Chen
a932a8041f usb: chipidea: core: add sysfs group
Sometimes, the user needs to adjust some properties for controllers, eg
the role for controller, we add sysfs group for them.

The attribute 'role' is used to switch host/gadget role dynamically, the
uewr can read the current role, and write the other role compare to
current one to finish the switch.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
2017-04-14 09:26:37 +08:00
Michal Hocko
ffc10d82ff ACPI / scan: Drop support for force_remove
/sys/firmware/acpi/hotplug/force_remove was presumably added to support
auto offlining in the past. This is, however, inherently dangerous for
some hotplugable resources like memory. The memory offlining fails when
the memory is still in use and cannot be dropped or migrated. If we
ignore the failure we are basically allowing for subtle memory
corruption or a crash.

We have actually noticed the later while hitting BUG() during the memory
hotremove (remove_memory):
	ret = walk_memory_range(PFN_DOWN(start), PFN_UP(start + size - 1), NULL,
			check_memblock_offlined_cb);
	if (ret)
		BUG();

it took us quite non-trivial time realize that the customer had
force_remove enabled. Even if the BUG was removed here and we could
propagate the error up the call chain it wouldn't help at all because
then we would hit a crash or a memory corruption later and harder to
debug. So force_remove is unfixable for the memory hotremove. We haven't
checked other hotplugable resources to be prone to a similar problems.

Remove the force_remove functionality because it is not fixable currently.
Keep the sysfs file and report an error if somebody tries to enable it.
Encourage users to report about the missing functionality and work with
them with an alternative solution.

Reviewed-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-13 03:51:47 +02:00
Logan Gunthorpe
5d8e1881f4 switchtec: Add sysfs attributes to the Switchtec driver
Add a few read-only sysfs attributes which provide some device information
that is exposed from the devices, primarily component and device names and
versions.

These are documented in Documentation/ABI/testing/sysfs-class-switchtec.

Tested-by: Krishna Dhulipala <krishnad@fb.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Stephen Bates <stephen.bates@microsemi.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Wei Zhang <wzhang@fb.com>
Reviewed-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-12 12:23:37 -05:00
Mauro Carvalho Chehab
e1c3e6e1ca docs-rst: fix usb cross-references
As some USB documentation files got moved, adjust their
cross-references to their new place.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:41:29 -06:00
Greg Kroah-Hartman
ba7756d082 usb: changes for v4.12
With 51 non-merge commits, this is one of the smallest USB Gadget pull
 requests. Apart from your expected set of non-critical fixes, and
 other miscellaneous items, we have most of the changes in dwc3 (52.5%)
 with all other UDCs following with 34.8%.
 
 As for the actual changes, the most important of them are all the
 recent changes to reduce memory footprint of dwc3, bare minimum
 dual-role support on dwc3 and reworked endpoint count and
 initialization routines.
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Merge tag 'usb-for-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: changes for v4.12

With 51 non-merge commits, this is one of the smallest USB Gadget pull
requests. Apart from your expected set of non-critical fixes, and
other miscellaneous items, we have most of the changes in dwc3 (52.5%)
with all other UDCs following with 34.8%.

As for the actual changes, the most important of them are all the
recent changes to reduce memory footprint of dwc3, bare minimum
dual-role support on dwc3 and reworked endpoint count and
initialization routines.
2017-04-11 16:47:26 +02:00
Yoshihiro Shimoda
cc995c9ec1 usb: gadget: udc: renesas_usb3: add support for usb role swap
This patch adds support for usb role swap via sysfs "role".

For example:
 1) Connect a usb cable using 2 Salvator-X boards.
  - For A-Device, the cable is connected to CN11 (USB3.0 ch0).
  - For B-Device, the cable is connected to CN9 (USB2.0 ch0).
 2) On A-Device, you input the following command:
  # echo peripheral > /sys/devices/platform/soc/ee020000.usb/role
 3) On B-Device, you input the following command:
  # echo host > /sys/devices/platform/soc/ee080200.usb-phy/role

Then, the A-Device acts as a peripheral and the B-Device acts as
a host. Please note that A-Device must input the following command
if you want the board to act as a host again.
 # echo host > /sys/devices/platform/soc/ee020000.usb/role

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-04-11 10:58:25 +03:00
Christoph Hellwig
48920ff2a5 block: remove the discard_zeroes_data flag
Now that we use the proper REQ_OP_WRITE_ZEROES operation everywhere we can
kill this hack.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-08 11:25:38 -06:00
Juri Lelli
a2b60670ac Documentation/ABI: add information about cpu_capacity
/sys/devices/system/cpu/cpu#/cpu_capacity describe information about
CPUs heterogeneity (ref. to Documentation/devicetree/bindings/arm/
cpu-capacity.txt).

Add such description.

Signed-off-by: Juri Lelli <juri.lelli@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 18:26:14 +02:00
Jacopo Mondi
3fed601c1c iio: Documentation: Add max9611 sysfs documentation
Add documentation for max9611 driver.
Document attributes describing value of shunt resistor installed between
RS+ and RS- voltage sense inputs.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-04-08 17:26:03 +01:00
Daniele Palmas
416906fc28 Documentation: ABI: testing: sysfs-class-net-qmi: add new qmap mux files description
This patch updates the documentation related to the new files added for
qmap mux support.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-25 20:03:35 -07:00
Heikki Krogerus
fab9288428 usb: USB Type-C connector class
The purpose of USB Type-C connector class is to provide
unified interface for the user space to get the status and
basic information about USB Type-C connectors on a system,
control over data role swapping, and when the port supports
USB Power Delivery, also control over power role swapping
and Alternate Modes.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-and-Tested-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-23 13:48:44 +01:00