Commit Graph

24679 Commits

Author SHA1 Message Date
Guenter Roeck 664a39236e watchdog: Introduce hardware maximum heartbeat in watchdog core
Introduce an optional hardware maximum heartbeat in the watchdog core.
The hardware maximum heartbeat can be lower than the maximum timeout.

Drivers can set the maximum hardware heartbeat value in the watchdog data
structure. If the configured timeout exceeds the maximum hardware heartbeat,
the watchdog core enables a timer function to assist sending keepalive
requests to the watchdog driver.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-03-16 21:11:14 +01:00
Guenter Roeck fb32e9b9de watchdog: Make set_timeout function optional
For some watchdogs, the watchdog driver handles timeout changes without
explicitly setting any registers. In this situation, the watchdog driver
might only set the 'timeout' variable but do nothing else.
This can as well be handled by the infrastructure, so make the set_timeout
callback optional. If WDIOF_SETTIMEOUT is configured but the .set_timeout
callback is not available, update the timeout variable in the
infrastructure code.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-03-16 21:11:07 +01:00
Linus Torvalds 271ecc5253 Merge branch 'akpm' (patches from Andrew)
Merge first patch-bomb from Andrew Morton:

 - some misc things

 - ofs2 updates

 - about half of MM

 - checkpatch updates

 - autofs4 update

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (120 commits)
  autofs4: fix string.h include in auto_dev-ioctl.h
  autofs4: use pr_xxx() macros directly for logging
  autofs4: change log print macros to not insert newline
  autofs4: make autofs log prints consistent
  autofs4: fix some white space errors
  autofs4: fix invalid ioctl return in autofs4_root_ioctl_unlocked()
  autofs4: fix coding style line length in autofs4_wait()
  autofs4: fix coding style problem in autofs4_get_set_timeout()
  autofs4: coding style fixes
  autofs: show pipe inode in mount options
  kallsyms: add support for relative offsets in kallsyms address table
  kallsyms: don't overload absolute symbol type for percpu symbols
  x86: kallsyms: disable absolute percpu symbols on !SMP
  checkpatch: fix another left brace warning
  checkpatch: improve UNSPECIFIED_INT test for bare signed/unsigned uses
  checkpatch: warn on bare unsigned or signed declarations without int
  checkpatch: exclude asm volatile from complex macro check
  mm: memcontrol: drop unnecessary lru locking from mem_cgroup_migrate()
  mm: migrate: consolidate mem_cgroup_migrate() calls
  mm/compaction: speed up pageblock_pfn_to_page() when zone is contiguous
  ...
2016-03-16 11:51:08 -07:00
Linus Torvalds 10dc374766 One of the largest releases for KVM... Hardly any generic improvement,
but lots of architecture-specific changes.
 
 * ARM:
 - VHE support so that we can run the kernel at EL2 on ARMv8.1 systems
 - PMU support for guests
 - 32bit world switch rewritten in C
 - various optimizations to the vgic save/restore code.
 
 * PPC:
 - enabled KVM-VFIO integration ("VFIO device")
 - optimizations to speed up IPIs between vcpus
 - in-kernel handling of IOMMU hypercalls
 - support for dynamic DMA windows (DDW).
 
 * s390:
 - provide the floating point registers via sync regs;
 - separated instruction vs. data accesses
 - dirty log improvements for huge guests
 - bugfixes and documentation improvements.
 
 * x86:
 - Hyper-V VMBus hypercall userspace exit
 - alternative implementation of lowest-priority interrupts using vector
 hashing (for better VT-d posted interrupt support)
 - fixed guest debugging with nested virtualizations
 - improved interrupt tracking in the in-kernel IOAPIC
 - generic infrastructure for tracking writes to guest memory---currently
 its only use is to speedup the legacy shadow paging (pre-EPT) case, but
 in the future it will be used for virtual GPUs as well
 - much cleanup (LAPIC, kvmclock, MMU, PIT), including ubsan fixes.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "One of the largest releases for KVM...  Hardly any generic
  changes, but lots of architecture-specific updates.

  ARM:
   - VHE support so that we can run the kernel at EL2 on ARMv8.1 systems
   - PMU support for guests
   - 32bit world switch rewritten in C
   - various optimizations to the vgic save/restore code.

  PPC:
   - enabled KVM-VFIO integration ("VFIO device")
   - optimizations to speed up IPIs between vcpus
   - in-kernel handling of IOMMU hypercalls
   - support for dynamic DMA windows (DDW).

  s390:
   - provide the floating point registers via sync regs;
   - separated instruction vs.  data accesses
   - dirty log improvements for huge guests
   - bugfixes and documentation improvements.

  x86:
   - Hyper-V VMBus hypercall userspace exit
   - alternative implementation of lowest-priority interrupts using
     vector hashing (for better VT-d posted interrupt support)
   - fixed guest debugging with nested virtualizations
   - improved interrupt tracking in the in-kernel IOAPIC
   - generic infrastructure for tracking writes to guest
     memory - currently its only use is to speedup the legacy shadow
     paging (pre-EPT) case, but in the future it will be used for
     virtual GPUs as well
   - much cleanup (LAPIC, kvmclock, MMU, PIT), including ubsan fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (217 commits)
  KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch
  KVM: x86: disable MPX if host did not enable MPX XSAVE features
  arm64: KVM: vgic-v3: Only wipe LRs on vcpu exit
  arm64: KVM: vgic-v3: Reset LRs at boot time
  arm64: KVM: vgic-v3: Do not save an LR known to be empty
  arm64: KVM: vgic-v3: Save maintenance interrupt state only if required
  arm64: KVM: vgic-v3: Avoid accessing ICH registers
  KVM: arm/arm64: vgic-v2: Make GICD_SGIR quicker to hit
  KVM: arm/arm64: vgic-v2: Only wipe LRs on vcpu exit
  KVM: arm/arm64: vgic-v2: Reset LRs at boot time
  KVM: arm/arm64: vgic-v2: Do not save an LR known to be empty
  KVM: arm/arm64: vgic-v2: Move GICH_ELRSR saving to its own function
  KVM: arm/arm64: vgic-v2: Save maintenance interrupt state only if required
  KVM: arm/arm64: vgic-v2: Avoid accessing GICH registers
  KVM: s390: allocate only one DMA page per VM
  KVM: s390: enable STFLE interpretation only if enabled for the guest
  KVM: s390: wake up when the VCPU cpu timer expires
  KVM: s390: step the VCPU timer while in enabled wait
  KVM: s390: protect VCPU cpu timer with a seqcount
  KVM: s390: step VCPU cpu timer during kvm_run ioctl
  ...
2016-03-16 09:55:35 -07:00
Linus Torvalds 047486d8e7 EDAC queue for 4.6
* Altera: L2 cache and On-Chip RAM support (Thor Thayer).
 
 * EDAC: Workqueue handling cleanups (Borislav Petkov).
 
 * Xgene: Register bus error handling (Loc Ho).
 
 * Misc small fixes.
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Merge tag 'edac_for_4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:

 - Altera: L2 cache and On-Chip RAM support (Thor Thayer).

 - EDAC: Workqueue handling cleanups (Borislav Petkov).

 - Xgene: Register bus error handling (Loc Ho).

 - Misc small fixes.

* tag 'edac_for_4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  ARM: socfpga: Enable OCRAM ECC on startup
  ARM: socfpga: Enable L2 cache ECC on startup
  ARM: dts: Add Altera L2 Cache and OCRAM EDAC entries
  EDAC, altera: Add Altera L2 cache and OCRAM support
  EDAC: Use edac_debugfs_remove_recursive() in edac_debugfs_exit()
  EDAC, mpc85xx: Silence unused variable warning
  EDAC: Cleanup/sync workqueue functions
  EDAC: Kill workqueue setup/teardown functions
  EDAC: Balance workqueue setup and teardown
  arm64: Update the APM X-Gene EDAC node with the RB register resource
  EDAC, xgene: Add missing SoC register bus error handling
  Documentation, EDAC: Update xgene binding for missing register bus
  EDAC, amd64_edac: Shift wrapping issue in f1x_get_norm_dct_addr()
2016-03-16 08:36:55 -07:00
John Crispin daf5ae7850 dt-bindings: mfd: Add bindings for the MediaTek MT6323 PMIC
Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-03-16 08:50:28 +00:00
Wenyou Yang 2cd9ad0c5f mfd: Add documentation for ACT8945A DT bindings
The Active-semi ACT8945A PMIC is a Multi-Function Device, it has
two subdevices:
 - Regulator
 - Charger

This patch adds documentation for ACT8945A DT bindings.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-03-16 08:50:26 +00:00
Andrew F. Davis a85b9e0b3c Documentation: tps65086: Add DT bindings for the TPS65086 PMIC
The TPS65086 PMIC contains several regulators and a GPO controller.
Add bindings for the TPS65086 PMIC.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-03-16 08:50:15 +00:00
Ingo Molnar e525a8622a Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/urgent
Pull memory barriers documentation updates from Paul E. McKenney.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-16 08:24:34 +01:00
Linus Torvalds 9256d5a308 LED core improvements:
- Fix misleading comment after workqueue removal from drivers.
 
 - Avoid error message when a USB LED device is unplugged.
 
 - Add helpers for calling brightness_set(_blocking)
 
 LED triggers:
 
 - Simplify led_trigger_store by using sysfs_streq().
 
 LED class drivers improvements:
 
 - Improve wording and formatting in a comment: lp3944.
 
 - Fix return value check in create_gpio_led(): leds-gpio.
 
 - Use GPIOF_OUT_INIT_LOW instead of hardcoded zero: leds-gpio.
 
 - Use devm_led_classdev_register(): leds-lm3533, leds-lm3533, leds-lp8788,
   leds-wm831x-status, leds-s3c24xx, leds-s3c24xx, leds: max8997.
 
 New LED class driver:
 
 - Add driver for the ISSI IS31FL32xx family of LED controllers.
 
 Device Tree documentation:
 
 - of: Add vendor prefixes for Integrated Silicon Solutions Inc. (issi)
   and Si-En Technology (si-en).
 
 - DT: Add common bindings for Si-En Technology SN3216/18 and IS31FL32xx
   family of LED controllers, since they seem to be the same hardware,
   just rebranded.
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Merge tag 'leds_for_4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds

Pull LED updates from Jacek Anaszewski:
 "LED core improvements:
   - Fix misleading comment after workqueue removal from drivers
   - Avoid error message when a USB LED device is unplugged
   - Add helpers for calling brightness_set(_blocking)

  LED triggers:
   - Simplify led_trigger_store by using sysfs_streq()

  LED class drivers improvements:
   - Improve wording and formatting in a comment: lp3944
   - Fix return value check in create_gpio_led(): leds-gpio
   - Use GPIOF_OUT_INIT_LOW instead of hardcoded zero: leds-gpio
   - Use devm_led_classdev_register(): leds-lm3533, leds-lm3533,
     leds-lp8788, leds-wm831x-status, leds-s3c24xx, leds-s3c24xx,
     leds-max8997.

  New LED class driver:
   - Add driver for the ISSI IS31FL32xx family of LED controllers.

  Device Tree documentation:
   - of: Add vendor prefixes for Integrated Silicon Solutions Inc.
     (issi) and Si-En Technology (si-en).
   - DT: Add common bindings for Si-En Technology SN3216/18 and
     IS31FL32xx family of LED controllers, since they seem to be the
     same hardware, just rebranded"

* tag 'leds_for_4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
  leds: triggers: simplify led_trigger_store
  leds: max8997: Use devm_led_classdev_register
  leds: da903x: Use devm_led_classdev_register
  leds: s3c24xx: Use devm_led_classdev_register
  leds: wm831x-status: Use devm_led_classdev_register
  leds: lp8788: Use devm_led_classdev_register
  leds: 88pm860x: Use devm_led_classdev_register
  leds: Add SN3218 and SN3216 support to the IS31FL32XX driver
  of: Add vendor prefix for Si-En Technology
  leds: Add driver for the ISSI IS31FL32xx family of LED controllers
  DT: leds: Add binding for the ISSI IS31FL32xx family of LED controllers
  DT: Add vendor prefix for Integrated Silicon Solutions Inc.
  leds: lm3533: Use devm_led_classdev_register
  leds: gpio: Use GPIOF_OUT_INIT_LOW instead of hardcoded zero
  leds: core: add helpers for calling brightness_set(_blocking)
  leds: leds-gpio: Fix return value check in create_gpio_led()
  leds: lp3944: improve wording and formatting in a comment
  leds: core: avoid error message when a USB LED device is unplugged
  leds: core: fix misleading comment after workqueue removal from drivers
2016-03-15 22:04:53 -07:00
Linus Torvalds 13f6f62f61 RTC for 4.6
Core:
  - New sysfs interface to set and read clock offset
  - Drivers can now be both I2C and SPI (see pcf2127 and ds3232)
 
 New drivers:
  - Alphascale ASM9260
  - Epson RX6110SA
  - Maxim max20024 and max77620 (in max77686)
  - Microchip PIC32
  - NXP pcf2129 (in pcf2127)
 
 Subsystem wide cleanups:
  - remove IRQF_EARLY_RESUME when unecessary
 
 Drivers:
  - ds1307: clock output, temperature sensor and wakeup-source support
  - ds1685: actually spin forever in poweroff error path
  - ds3232: many cleanups
  - ds3234: merged in ds3232
  - hym8563: fix invalid year calculation
  - max77686: many cleanups
  - max77802 merged in max77686
  - pcf2123: cleanups and offset support
  - pcf85063: cleanups
  - pcf8523: propely handle oscillator stop bit
  - rv3029: many cleanups, trickle charger and temperature sensor support
  - rv8803: convert spin_lock to mutex_lock
  - rx8025: many fixes
  - vr41xx: restore alarm_irq_enable
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Merge tag 'rtc-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "Core:
   - New sysfs interface to set and read clock offset
   - Drivers can now be both I2C and SPI (see pcf2127 and ds3232)

  New drivers:
   - Alphascale ASM9260
   - Epson RX6110SA
   - Maxim max20024 and max77620 (in max77686)
   - Microchip PIC32
   - NXP pcf2129 (in pcf2127)

  Subsystem wide cleanups:
   - remove IRQF_EARLY_RESUME when unecessary

  Drivers:
   - ds1307: clock output, temperature sensor and wakeup-source support
   - ds1685: actually spin forever in poweroff error path
   - ds3232: many cleanups
   - ds3234: merged in ds3232
   - hym8563: fix invalid year calculation
   - max77686: many cleanups
   - max77802 merged in max77686
   - pcf2123: cleanups and offset support
   - pcf85063: cleanups
   - pcf8523: propely handle oscillator stop bit
   - rv3029: many cleanups, trickle charger and temperature sensor support
   - rv8803: convert spin_lock to mutex_lock
   - rx8025: many fixes
   - vr41xx: restore alarm_irq_enable"

* tag 'rtc-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (86 commits)
  rtc: pcf2127: add pcf2129 device id
  rtc: pcf2127: add support for spi interface
  rtc: pcf2127: convert to use regmap
  rtc: rv3029: Add thermometer hwmon support
  rtc: rv3029: Add update_bits helper for eeprom access
  rtc: ds1685: actually spin forever in poweroff error path
  rtc: hym8563: fix invalid year calculation
  rtc: ds3232: use rtc->ops_lock to protect alarm operations
  rtc: ds3232: fix issue when irq is shared several devices
  rtc: ds3232: remove unused UIE code
  rtc: ds3232: add register access error checks
  rtc: ds3232: fix read on /dev/rtc after RTC_AIE_ON
  rtc: merge ds3232 and ds3234
  rtc: ds3232: convert to use regmap
  rtc: pxa: fix Kconfig indentation
  rtc: rv3029: Add device tree property for trickle charger
  rtc: rv3029: Add functions for EEPROM access
  rtc: rv3029: Add i2c register update-bits helper
  rtc: rv3029: Add missing register definitions
  rtc: rv3029: Add "rv3029" I2C device id
  ...
2016-03-15 21:58:58 -07:00
Linus Torvalds f0718cea47 hwmon updates for v4.5:
- New drivers for NSA320 and LTC2990
 - Added support for ADM1278 to adm1275 driver
 - Added support for ncpXXxh103 to ntc_thermistor driver
 - Renamed vexpress hwmon implementation
 - Minor cleanups and improvements
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Merge tag 'hwmon-for-linus-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 - New drivers for NSA320 and LTC2990
 - Added support for ADM1278 to adm1275 driver
 - Added support for ncpXXxh103 to ntc_thermistor driver
 - Renamed vexpress hwmon implementation
 - Minor cleanups and improvements

* tag 'hwmon-for-linus-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: Create an NSA320 hardware monitoring driver
  hwmon: Define binding for the nsa320-hwmon driver
  hwmon: (adm1275) Add support for ADM1278
  hwmon: (ntc_thermistor) Add support for ncpXXxh103
  Doc: hwmon: Fix typo "montoring" in hwmon
  ARM: dts: vfxxx: Add iio_hwmon node for ADC temperature channel
  ARM: dts: Change iio_hwmon nodes to use hypen in node names
  hwmon: (iio_hwmon) Allow the driver to accept hypen in device tree node names
  hwmon: Add LTC2990 sensor driver
  hwmon: (vexpress) rename vexpress hwmon implementation
2016-03-15 21:44:47 -07:00
Linus Torvalds 555f8160b2 regulator: Updates for v4.6
This has been an extremely quiet release for the regulator API, aside
 from bugfixes and small enhancements the only thing that really stands
 out are the new drivers for Action Semiconductors ACT8945A, HiSilicon
 HI665x, and the Maxim MAX20024 and MAX77620.
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Merge tag 'regulator-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This has been an extremely quiet release for the regulator API, aside
  from bugfixes and small enhancements the only thing that really stands
  out are the new drivers for Action Semiconductors ACT8945A, HiSilicon
  HI665x, and the Maxim MAX20024 and MAX77620"

* tag 'regulator-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (46 commits)
  regulator: pwm: Add support to have multiple instance of pwm regulator
  regulator: pwm: Fix calculation of voltage-to-duty cycle
  regulator: of: Use of_property_read_u32() for reading min/max
  regulator: pv88060: fix incorrect clear of event register
  regulator: pv88090: fix incorrect clear of event register
  regulator: max77620: Add support to configure active-discharge
  regulator: core: Add support for active-discharge configuration
  regulator: helper: Add helper to configure active-discharge using regmap
  regulator: core: Add support for active-discharge configuration
  regulator: DT: Add DT property for active-discharge configuration
  regulator: act8865: Specify fixed voltage of 3.3V for ACT8600's REG9
  regulator: act8865: Rename platform_data field to init_data
  regulator: act8865: Remove "static" from local variable
  ASoC: cs4271: add regulator consumer support
  regulator: max77620: Remove duplicate module alias
  regulator: max77620: Eliminate duplicate code
  regulator: max77620: Remove unused fields
  regulator: core: fix crash in error path of regulator_register
  regulator: core: Request GPIO before creating sysfs entries
  regulator: gpio: don't print error on EPROBE_DEFER
  ...
2016-03-15 21:34:35 -07:00
Linus Torvalds b7aae4a9d0 regmap: Updates for v4.6
This has been a very busy release for regmap, not just in cleaning up
 the mess we got ourselves into with the endianness handling but also in
 other areas too:
 
  - Fixes for the endianness handling so that we now explicltly default
    to little endian (the code used to do this by accident).  This
    fixes handling of explictly specified endianness on big endian
    systems.
  - Optimisation of the implementation of register striding.
  - A refectoring of the _update_bits() code to reduce duplication.
  - Fixes and enhancements for the interrupt implementation which
    make it easier to use in a wider range of systems.
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Merge tag 'regmap-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "This has been a very busy release for regmap, not just in cleaning up
  the mess we got ourselves into with the endianness handling but also
  in other areas too:

   - Fixes for the endianness handling so that we now explicitly default
     to little endian (the code used to do this by accident).  This
     fixes handling of explictly specified endianness on big endian
     systems.

   - Optimisation of the implementation of register striding.

   - A refectoring of the _update_bits() code to reduce duplication.

   - Fixes and enhancements for the interrupt implementation which make
     it easier to use in a wider range of systems"

* tag 'regmap-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (28 commits)
  regmap: irq: add devm apis for regmap_{add,del}_irq_chip
  regmap: replace regmap_write_bits()
  regmap: irq: Enable irq retriggering for nested irqs
  regmap: add regmap_fields_force_xxx() macros
  regmap: add regmap_field_force_xxx() macros
  regmap: merge regmap_fields_update_bits() into macro
  regmap: merge regmap_fields_write() into macro
  regmap: add regmap_fields_update_bits_base()
  regmap: merge regmap_field_update_bits() into macro
  regmap: merge regmap_field_write() into macro
  regmap: add regmap_field_update_bits_base()
  regmap: merge regmap_update_bits_check_async() into macro
  regmap: merge regmap_update_bits_check() into macro
  regmap: merge regmap_update_bits_async() into macro
  regmap: merge regmap_update_bits() into macro
  regmap: add regmap_update_bits_base()
  regcache: flat: Introduce register strider order
  regcache: Introduce the index parsing API by stride order
  regmap: core: Introduce register stride order
  regmap: irq: add devm apis for regmap_{add,del}_irq_chip
  ...
2016-03-15 21:22:26 -07:00
Linus Torvalds ff280e3639 spi: Updates for v4.6
Not the biggest set of changes for SPI but a bit of a pickup in activity
 on the core:
 
  - Support for memory mapped read from flash devices via a SPI
    controller.
  - The beginnings of a message rewriting framework in the core which
    should in time allow us to support transforming messages to work
    around the limits of controllers or optimise the performance for
    controllers transparently to calling drivers.
  - Updates to the PXA2xx, the main functional change being to improve
    the ACPI support.
  - A new driver for the Analog Devices AXI SPI engine.
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Merge tag 'spi-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "Not the biggest set of changes for SPI but a bit of a pickup in
  activity on the core:

   - Support for memory mapped read from flash devices via a SPI
     controller.

   - The beginnings of a message rewriting framework in the core which
     should in time allow us to support transforming messages to work
     around the limits of controllers or optimise the performance for
     controllers transparently to calling drivers.

   - Updates to the PXA2xx, the main functional change being to improve
     the ACPI support.

   - A new driver for the Analog Devices AXI SPI engine"

* tag 'spi-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (66 commits)
  spi: Add gfp parameter to kernel-doc to fix build warning
  spi: Fix htmldocs build error due struct spi_replaced_transfers
  spi: rockchip: covert rsd_nsecs to u32 type
  spi: rockchip: header file cleanup
  spi: xilinx: Add devicetree binding for spi-xilinx
  spi: respect the maximum segment size of DMA device
  spi: rockchip: check requesting dma channel with EPROBE_DEFER
  spi: rockchip: migrate to dmaengine_terminate_async
  spi: rockchip: check return value of dmaengine_prep_slave_sg
  spi: core: Fix deadlock when sending messages
  spi/rockchip: fix endian mode for 16-bit transfers
  spi/rockchip: Make sure spi clk is on in rockchip_spi_set_cs
  spi: pxa2xx: Use newer more explicit DMAengine terminate API
  spi: pxa2xx: Add support for Intel Broxton B-Step
  spi: lp-8841: return correct error code from probe
  spi: imx: drop bogus tests for rx/tx bufs in DMA transfer
  spi: imx: set MX51_ECSPI_CTRL_SMC bit in setup function
  spi: imx: make some register defines simpler
  spi: imx: remove unnecessary bit clearing in mx51_ecspi_config
  spi: imx: add support for all SPI word width for DMA
  ...
2016-03-15 21:07:33 -07:00
Linus Torvalds 5ca5446ec5 Pin control changes for kernel v4.6:
An almost purely driver related set of changes with no
 major changes to the framework, only one patch adding
 an unlocked version of the pinctrl_find_gpio_range_from_pin()
 library call.
 
 New drivers:
 - ST Microelectronics STM32 MCU support: this is a non-MMU
   low-end platform for IoT things (etc).
 - Microchip PIC32 MCU support: same story as for STM32.
 
 New subdrivers:
 - Allwinner SunXi H3 R_PIO controller support.
 - Qualcomm IPQ4019 support.
 - MediaTek MT2701 and MT7623.
 - Allwinner A64
 
 Non-critical fixes:
 - gpio_disable_free() for the Vybrid.
 - pinctrl single: use a separate lockdep class.
 
 Misc:
 - Substantial cleanups and rewrites for the Super-H PFC
   driver and subdrivers.
 - Various fixes and cleanups, especially Paul Gortmakers
   work to make nonmodular drivers nonmodular.
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Merge tag 'pinctrl-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "An almost purely driver related set of changes with no major changes
  to the framework, only one patch adding an unlocked version of the
  pinctrl_find_gpio_range_from_pin() library call.

  New drivers:
   - ST Microelectronics STM32 MCU support: this is a non-MMU low-end
     platform for IoT things (etc).
   - Microchip PIC32 MCU support: same story as for STM32.

  New subdrivers:
   - Allwinner SunXi H3 R_PIO controller support.
   - Qualcomm IPQ4019 support.
   - MediaTek MT2701 and MT7623.
   - Allwinner A64

  Non-critical fixes:
   - gpio_disable_free() for the Vybrid.
   - pinctrl single: use a separate lockdep class.

  Misc:
   - Substantial cleanups and rewrites for the Super-H PFC driver and
     subdrivers.
   - Various fixes and cleanups, especially Paul Gortmakers work to make
     nonmodular drivers nonmodular"

* tag 'pinctrl-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (75 commits)
  pinctrl: single: Use a separate lockdep class
  drivers: pinctrl: add driver for Allwinner A64 SoC
  pinctrl: Broadcom Northstar2 pinctrl device tree bindings
  pinctrl: amlogic: Make driver independent from two-domain configuration
  pinctrl: amlogic: Separate some pin functions for Meson8 / Meson8b
  pinctrl: at91: use __maybe_unused to hide pm functions
  pinctrl: sh-pfc: core: don't open code of_device_get_match_data()
  pinctrl: uniphier: rename CONFIG options and file names
  pinctrl: sunxi: make A80 explicitly non-modular
  pinctrl: stm32: make explicitly non-modular
  pinctrl: sh-pfc: make explicitly non-modular
  pinctrl: meson: make explicitly non-modular
  pinctrl: pinctrl-mt6397 driver explicitly non-modular
  pinctrl: sunxi: does not need module.h
  pinctrl: pxa2xx: export symbols
  pinctrl: sunxi: Change mux setting on PI irq pins
  pinctrl: sunxi: Remove non existing irq's
  pinctrl: imx: attach iomuxc device to gpr syscon
  pinctrl-bcm2835: Fix cut-and-paste error in "pull" parsing
  pinctrl: lpc1850-scu: document nxp,gpio-pin-interrupt
  ...
2016-03-15 20:23:13 -07:00
Dave Airlie 1a4be38a3a Merge tag 'topic/drm-misc-2016-03-14' of git://anongit.freedesktop.org/drm-intel into drm-next
* tag 'topic/drm-misc-2016-03-14' of git://anongit.freedesktop.org/drm-intel: (27 commits)
  drm: atomic helper: do not unreference error pointer
  drm/edid: Extract SADs properly from multiple audio data blocks
  drm: fix blob pointer check
  drm: introduce pipe color correction properties
  drm/atomic: Clean up update_connector_routing.
  drm/atomic: Clean up steal_encoder, v2.
  drm/atomic: Handle encoder assignment conflicts in a separate check, v3.
  drm/atomic: Handle encoder stealing from set_config better.
  drm/atomic: Always call steal_encoder, v2.
  drm/ast: removed optional dummy crtc mode_fixup function.
  drm/bochs: removed optional dummy crtc mode_fixup function.
  drm/fsl-dcu: removed optional dummy crtc mode_fixup function.
  drm/virtio: removed optional dummy crtc mode_fixup function.
  drm/nouveau/dispnv04: removed optional dummy crtc mode_fixup function.
  drm/atmel-hlcdc: remove optional dummy crtc mode_fixup function.
  drm/sti: removed optional dummy crtc mode_fixup function.
  drm/shmobile: removed optional dummy crtc mode_fixup function.
  drm/msm/mdp: removed optional dummy crtc mode_fixup function.
  drm/omapdrm: removed optional dummy crtc mode_fixup function.
  drm/rcar-du: removed optional dummy crtc mode_fixup function.
  ...
2016-03-16 11:09:26 +10:00
Vitaly Kuznetsov 31bc3858ea memory-hotplug: add automatic onlining policy for the newly added memory
Currently, all newly added memory blocks remain in 'offline' state
unless someone onlines them, some linux distributions carry special udev
rules like:

  SUBSYSTEM=="memory", ACTION=="add", ATTR{state}=="offline", ATTR{state}="online"

to make this happen automatically.  This is not a great solution for
virtual machines where memory hotplug is being used to address high
memory pressure situations as such onlining is slow and a userspace
process doing this (udev) has a chance of being killed by the OOM killer
as it will probably require to allocate some memory.

Introduce default policy for the newly added memory blocks in
/sys/devices/system/memory/auto_online_blocks file with two possible
values: "offline" which preserves the current behavior and "online"
which causes all newly added memory blocks to go online as soon as
they're added.  The default is "offline".

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Daniel Kiper <daniel.kiper@oracle.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Xishi Qiu <qiuxishi@huawei.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Kay Sievers <kay@vrfy.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-15 16:55:16 -07:00
Laura Abbott 8823b1dbc0 mm/page_poison.c: enable PAGE_POISONING as a separate option
Page poisoning is currently set up as a feature if architectures don't
have architecture debug page_alloc to allow unmapping of pages.  It has
uses apart from that though.  Clearing of the pages on free provides an
increase in security as it helps to limit the risk of information leaks.
Allow page poisoning to be enabled as a separate option independent of
kernel_map pages since the two features do separate work.  Because of
how hiberanation is implemented, the checks on alloc cannot occur if
hibernation is enabled.  The runtime alloc checks can also be enabled
with an option when !HIBERNATION.

Credit to Grsecurity/PaX team for inspiring this work

Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mathias Krause <minipli@googlemail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Jianyu Zhan <nasa4836@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-15 16:55:16 -07:00
Vlastimil Babka 7dd80b8af0 mm, page_owner: convert page_owner_inited to static key
CONFIG_PAGE_OWNER attempts to impose negligible runtime overhead when
enabled during compilation, but not actually enabled during runtime by
boot param page_owner=on.  This overhead can be further reduced using
the static key mechanism, which this patch does.

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-15 16:55:16 -07:00
Vlastimil Babka edf14cdbf9 mm, printk: introduce new format string for flags
In mm we use several kinds of flags bitfields that are sometimes printed
for debugging purposes, or exported to userspace via sysfs.  To make
them easier to interpret independently on kernel version and config, we
want to dump also the symbolic flag names.  So far this has been done
with repeated calls to pr_cont(), which is unreliable on SMP, and not
usable for e.g.  sysfs export.

To get a more reliable and universal solution, this patch extends
printk() format string for pointers to handle the page flags (%pGp),
gfp_flags (%pGg) and vma flags (%pGv).  Existing users of
dump_flag_names() are converted and simplified.

It would be possible to pass flags by value instead of pointer, but the
%p format string for pointers already has extensions for various kernel
structures, so it's a good fit, and the extra indirection in a
non-critical path is negligible.

[linux@rasmusvillemoes.dk: lots of good implementation suggestions]
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-15 16:55:16 -07:00
Taku Izumi 342332e6a9 mm/page_alloc.c: introduce kernelcore=mirror option
This patch extends existing "kernelcore" option and introduces
kernelcore=mirror option.  By specifying "mirror" instead of specifying
the amount of memory, non-mirrored (non-reliable) region will be
arranged into ZONE_MOVABLE.

[akpm@linux-foundation.org: fix build with CONFIG_HAVE_MEMBLOCK_NODE_MAP=n]
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Xishi Qiu <qiuxishi@huawei.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Steve Capper <steve.capper@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-15 16:55:16 -07:00
Laura Abbott becfda68ab slub: convert SLAB_DEBUG_FREE to SLAB_CONSISTENCY_CHECKS
SLAB_DEBUG_FREE allows expensive consistency checks at free to be turned
on or off.  Expand its use to be able to turn off all consistency
checks.  This gives a nice speed up if you only want features such as
poisoning or tracing.

Credit to Mathias Krause for the original work which inspired this
series

Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-15 16:55:16 -07:00
Dmitry Torokhov 245f0db0de Linux 4.5
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Merge tag 'v4.5' into next

Merge with Linux 4.5 to get PROPERTY_ENTRY_INTEGER() that is needed to
fix pxa/raumfeld rotary encoder properties.
2016-03-15 16:54:45 -07:00
Linus Torvalds df2e37c814 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
 "The 4.6 pile of irq updates contains:

   - Support for IPI irqdomains to support proper integration of IPIs to
     and from coprocessors.  The first user of this new facility is
     MIPS.  The relevant MIPS patches come with the core to avoid merge
     ordering issues and have been acked by Ralf.

   - A new command line option to set the default interrupt affinity
     mask at boot time.

   - Support for some more new ARM and MIPS interrupt controllers:
     tango, alpine-msix and bcm6345-l1

   - Two small cleanups for x86/apic which we merged into irq/core to
     avoid yet another branch in x86 with two tiny commits.

   - The usual set of updates, cleanups in drivers/irqchip.  Mostly in
     the area of ARM-GIC, arada-37-xp and atmel chips.  Nothing
     outstanding here"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (56 commits)
  irqchip/irq-alpine-msi: Release the correct domain on error
  irqchip/mxs: Fix error check of of_io_request_and_map()
  irqchip/sunxi-nmi: Fix error check of of_io_request_and_map()
  genirq: Export IRQ functions for module use
  irqchip/gic/realview: Support more RealView DCC variants
  Documentation/bindings: Document the Alpine MSIX driver
  irqchip: Add the Alpine MSIX interrupt controller
  irqchip/gic-v3: Always return IRQ_SET_MASK_OK_DONE in gic_set_affinity
  irqchip/gic-v3-its: Mark its_init() and its children as __init
  irqchip/gic-v3: Remove gic_root_node variable from the ITS code
  irqchip/gic-v3: ACPI: Add redistributor support via GICC structures
  irqchip/gic-v3: Add ACPI support for GICv3/4 initialization
  irqchip/gic-v3: Refactor gic_of_init() for GICv3 driver
  x86/apic: Deinline _flat_send_IPI_mask, save ~150 bytes
  x86/apic: Deinline __default_send_IPI_*, save ~200 bytes
  dt-bindings: interrupt-controller: Add SoC-specific compatible string to Marvell ODMI
  irqchip/mips-gic: Add new DT property to reserve IPIs
  MIPS: Delete smp-gic.c
  MIPS: Make smp CMP, CPS and MT use the new generic IPI functions
  MIPS: Add generic SMP IPI support
  ...
2016-03-15 12:48:48 -07:00
Linus Torvalds 8a284c062e Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
 "The timer department delivers this time:

   - Support for cross clock domain timestamps in the core code plus a
     first user.  That allows more precise timestamping for PTP and
     later for audio and other peripherals.

     The ptp/e1000e patches have been acked by the relevant maintainers
     and are carried in the timer tree to avoid merge ordering issues.

   - Support for unregistering the current clocksource watchdog.  That
     lifts a limitation for switching clocksources which has been there
     from day 1

   - The usual pile of fixes and updates to the core and the drivers.
     Nothing outstanding and exciting"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
  time/timekeeping: Work around false positive GCC warning
  e1000e: Adds hardware supported cross timestamp on e1000e nic
  ptp: Add PTP_SYS_OFFSET_PRECISE for driver crosstimestamping
  x86/tsc: Always Running Timer (ART) correlated clocksource
  hrtimer: Revert CLOCK_MONOTONIC_RAW support
  time: Add history to cross timestamp interface supporting slower devices
  time: Add driver cross timestamp interface for higher precision time synchronization
  time: Remove duplicated code in ktime_get_raw_and_real()
  time: Add timekeeping snapshot code capturing system time and counter
  time: Add cycles to nanoseconds translation
  jiffies: Use CLOCKSOURCE_MASK instead of constant
  clocksource: Introduce clocksource_freq2mult()
  clockevents/drivers/exynos_mct: Implement ->set_state_oneshot_stopped()
  clockevents/drivers/arm_global_timer: Implement ->set_state_oneshot_stopped()
  clockevents/drivers/arm_arch_timer: Implement ->set_state_oneshot_stopped()
  clocksource/drivers/arm_global_timer: Register delay timer
  clocksource/drivers/lpc32xx: Support timer-based ARM delay
  clocksource/drivers/lpc32xx: Support periodic mode
  clocksource/drivers/lpc32xx: Don't use the prescaler counter for clockevents
  clocksource/drivers/rockchip: Add err handle for rk_timer_init
  ...
2016-03-15 12:13:56 -07:00
Linus Torvalds 13c76ad872 Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Enable full ASLR randomization for 32-bit programs (Hector
     Marco-Gisbert)

   - Add initial minimal INVPCI support, to flush global mappings (Andy
     Lutomirski)

   - Add KASAN enhancements (Andrey Ryabinin)

   - Fix mmiotrace for huge pages (Karol Herbst)

   - ... misc cleanups and small enhancements"

* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/32: Enable full randomization on i386 and X86_32
  x86/mm/kmmio: Fix mmiotrace for hugepages
  x86/mm: Avoid premature success when changing page attributes
  x86/mm/ptdump: Remove paravirt_enabled()
  x86/mm: Fix INVPCID asm constraint
  x86/dmi: Switch dmi_remap() from ioremap() [uncached] to ioremap_cache()
  x86/mm: If INVPCID is available, use it to flush global mappings
  x86/mm: Add a 'noinvpcid' boot option to turn off INVPCID
  x86/mm: Add INVPCID helpers
  x86/kasan: Write protect kasan zero shadow
  x86/kasan: Clear kasan_zero_page after TLB flush
  x86/mm/numa: Check for failures in numa_clear_kernel_node_hotplug()
  x86/mm/numa: Clean up numa_clear_kernel_node_hotplug()
  x86/mm: Make kmap_prot into a #define
  x86/mm/32: Set NX in __supported_pte_mask before enabling paging
  x86/mm: Streamline and restore probe_memory_block_size()
2016-03-15 10:45:39 -07:00
Linus Torvalds 9cf8d6360c Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 microcode updates from Ingo Molnar:
 "The biggest change in this cycle was the separation of the microcode
  loading mechanism from the initrd code plus the support of built-in
  microcode images.

  There were also lots cleanups and general restructuring (by Borislav
  Petkov)"

* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
  x86/microcode/intel: Drop orig_sum from ext signature checksum
  x86/microcode/intel: Improve microcode sanity-checking error messages
  x86/microcode/intel: Merge two consecutive if-statements
  x86/microcode/intel: Get rid of DWSIZE
  x86/microcode/intel: Change checksum variables to u32
  x86/microcode: Use kmemdup() rather than duplicating its implementation
  x86/microcode: Remove unnecessary paravirt_enabled check
  x86/microcode: Document builtin microcode loading method
  x86/microcode/AMD: Issue microcode updated message later
  x86/microcode/intel: Cleanup get_matching_model_microcode()
  x86/microcode/intel: Remove unused arg of get_matching_model_microcode()
  x86/microcode/intel: Rename mc_saved_in_initrd
  x86/microcode/intel: Use *wrmsrl variants
  x86/microcode/intel: Cleanup apply_microcode_intel()
  x86/microcode/intel: Move the BUG_ON up and turn it into WARN_ON
  x86/microcode/intel: Rename mc_intel variable to mc
  x86/microcode/intel: Rename mc_saved_count to num_saved
  x86/microcode/intel: Rename local variables of type struct mc_saved_data
  x86/microcode/AMD: Drop redundant printk prefix
  x86/microcode: Issue update message only once
  ...
2016-03-15 10:39:22 -07:00
Linus Torvalds ba33ea811e Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm updates from Ingo Molnar:
 "This is another big update. Main changes are:

   - lots of x86 system call (and other traps/exceptions) entry code
     enhancements.  In particular the complex parts of the 64-bit entry
     code have been migrated to C code as well, and a number of dusty
     corners have been refreshed.  (Andy Lutomirski)

   - vDSO special mapping robustification and general cleanups (Andy
     Lutomirski)

   - cpufeature refactoring, cleanups and speedups (Borislav Petkov)

   - lots of other changes ..."

* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (64 commits)
  x86/cpufeature: Enable new AVX-512 features
  x86/entry/traps: Show unhandled signal for i386 in do_trap()
  x86/entry: Call enter_from_user_mode() with IRQs off
  x86/entry/32: Change INT80 to be an interrupt gate
  x86/entry: Improve system call entry comments
  x86/entry: Remove TIF_SINGLESTEP entry work
  x86/entry/32: Add and check a stack canary for the SYSENTER stack
  x86/entry/32: Simplify and fix up the SYSENTER stack #DB/NMI fixup
  x86/entry: Only allocate space for tss_struct::SYSENTER_stack if needed
  x86/entry: Vastly simplify SYSENTER TF (single-step) handling
  x86/entry/traps: Clear DR6 early in do_debug() and improve the comment
  x86/entry/traps: Clear TIF_BLOCKSTEP on all debug exceptions
  x86/entry/32: Restore FLAGS on SYSEXIT
  x86/entry/32: Filter NT and speed up AC filtering in SYSENTER
  x86/entry/compat: In SYSENTER, sink AC clearing below the existing FLAGS test
  selftests/x86: In syscall_nt, test NT|TF as well
  x86/asm-offsets: Remove PARAVIRT_enabled
  x86/entry/32: Introduce and use X86_BUG_ESPFIX instead of paravirt_enabled
  uprobes: __create_xol_area() must nullify xol_mapping.fault
  x86/cpufeature: Create a new synthetic cpu capability for machine check recovery
  ...
2016-03-15 09:32:27 -07:00
Bjorn Helgaas 562df5c852 Merge branch 'pci/host-designware' into next
* pci/host-designware:
  PCI: designware: Add driver for prototyping kits based on ARC SDP
  PCI: designware: Add default link up check if sub-driver doesn't override
  PCI: designware: Add generic dw_pcie_wait_for_link()
  ARC: Add PCI support
2016-03-15 08:55:52 -05:00
Bjorn Helgaas c334f9c89e Merge branches 'pci/host-altera', 'pci/host-imx6', 'pci/host-keystone', 'pci/host-rcar', 'pci/host-tegra', 'pci/host-thunder', 'pci/host-vmd', 'pci/host-xilinx' and 'pci/host-xilinx-nwl' into next
* pci/host-altera:
  PCI: altera: Fix altera_pcie_link_is_up()

* pci/host-imx6:
  PCI: imx6: Add DT bindings to configure PHY Tx driver settings

* pci/host-keystone:
  PCI: keystone: Defer probing if devm_phy_get() returns -EPROBE_DEFER

* pci/host-rcar:
  PCI: rcar: Depend on ARCH_RENESAS, not ARCH_SHMOBILE

* pci/host-tegra:
  PCI: tegra: Remove misleading PHYS_OFFSET
  PCI: tegra: Track bus -> CPU mapping
  PCI: tegra: Remove unused struct tegra_pcie.num_ports field
  PCI: tegra: Implement ->{add,remove}_bus() callbacks
  PCI: Add pci_ops.{add,remove}_bus() callbacks

* pci/host-thunder:
  PCI: thunder: Add driver for ThunderX-pass{1,2} on-chip devices
  PCI: thunder: Add PCIe host driver for ThunderX processors
  PCI: generic: Expose pci_host_common_probe() for use by other drivers
  PCI: generic: Add pci_host_common_probe(), based on gen_pci_probe()
  PCI: generic: Move structure definitions to separate header file

* pci/host-vmd:
  x86/PCI: VMD: Attach VMD resources to parent domain's resource tree
  x86/PCI: VMD: Set bus resource start to 0
  x86/PCI: VMD: Document code for maintainability

* pci/host-xilinx:
  microblaze/PCI: Support generic Xilinx AXI PCIe Host Bridge IP driver
  PCI: xilinx: Update Zynq binding with Microblaze node
  PCI: xilinx: Don't call pci_fixup_irqs() on Microblaze
  PCI: xilinx: Remove dependency on ARM-specific struct hw_pci
  PCI: xilinx: Use of_pci_get_host_bridge_resources() to parse DT

* pci/host-xilinx-nwl:
  PCI: xilinx-nwl: Add support for Xilinx NWL PCIe Host Controller
2016-03-15 08:55:19 -05:00
Joao Pinto 5a3aa2a8fa PCI: designware: Add driver for prototyping kits based on ARC SDP
Add a reference platform driver for PCI RC IP Protoyping Kits based on the
ARC SDP.

[bhelgaas: changelog, split patch up, MAINTAINERS update]
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Pratyush Anand <pratyush.anand@gmail.com>
2016-03-15 08:50:45 -05:00
Mauro Carvalho Chehab 8331c055b2 Merge commit '840f5b0572ea' into v4l_for_linus
* commit '840f5b0572ea': (381 commits)
  media: au0828 disable tuner to demod link in au0828_media_device_register()
  [media] touptek: cast char types on %x printk
  [media] touptek: don't DMA at the stack
  [media] mceusb: use %*ph for small buffer dumps
  [media] v4l: exynos4-is: Drop unneeded check when setting up fimc-lite links
  [media] v4l: vsp1: Check if an entity is a subdev with the right function
  [media] hide unused functions for !MEDIA_CONTROLLER
  [media] em28xx: fix Terratec Grabby AC97 codec detection
  [media] media: add prefixes to interface types
  [media] media: rc: nuvoton: switch attribute wakeup_data to text
  [media] v4l2-ioctl: fix YUV422P pixel format description
  [media] media: fix null pointer dereference in v4l_vb2q_enable_media_source()
  [media] v4l2-mc.h: fix yet more compiler errors
  [media] staging/media: add missing TODO files
  [media] media.h: always start with 1 for the audio entities
  [media] sound/usb: Use meaninful names for goto labels
  [media] v4l2-mc.h: fix compiler warnings
  [media] media: au0828 audio mixer isn't connected to decoder
  [media] sound/usb: Use Media Controller API to share media resources
  [media] dw2102: add support for TeVii S662
  ...
2016-03-15 07:48:28 -03:00
Andrew F. Davis 45fe3fca6d gpio: Add generic serializer DT binding
Add binding for generic parallel-in/serial-out shift register devices
used as GPIO.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
[Clarified ngpios semantic]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-15 09:54:28 +01:00
Linus Torvalds d4e796152a Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
 "The main changes in this cycle are:

   - Make schedstats a runtime tunable (disabled by default) and
     optimize it via static keys.

     As most distributions enable CONFIG_SCHEDSTATS=y due to its
     instrumentation value, this is a nice performance enhancement.
     (Mel Gorman)

   - Implement 'simple waitqueues' (swait): these are just pure
     waitqueues without any of the more complex features of full-blown
     waitqueues (callbacks, wake flags, wake keys, etc.).  Simple
     waitqueues have less memory overhead and are faster.

     Use simple waitqueues in the RCU code (in 4 different places) and
     for handling KVM vCPU wakeups.

     (Peter Zijlstra, Daniel Wagner, Thomas Gleixner, Paul Gortmaker,
     Marcelo Tosatti)

   - sched/numa enhancements (Rik van Riel)

   - NOHZ performance enhancements (Rik van Riel)

   - Various sched/deadline enhancements (Steven Rostedt)

   - Various fixes (Peter Zijlstra)

   - ... and a number of other fixes, cleanups and smaller enhancements"

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits)
  sched/cputime: Fix steal_account_process_tick() to always return jiffies
  sched/deadline: Remove dl_new from struct sched_dl_entity
  Revert "kbuild: Add option to turn incompatible pointer check into error"
  sched/deadline: Remove superfluous call to switched_to_dl()
  sched/debug: Fix preempt_disable_ip recording for preempt_disable()
  sched, time: Switch VIRT_CPU_ACCOUNTING_GEN to jiffy granularity
  time, acct: Drop irq save & restore from __acct_update_integrals()
  acct, time: Change indentation in __acct_update_integrals()
  sched, time: Remove non-power-of-two divides from __acct_update_integrals()
  sched/rt: Kick RT bandwidth timer immediately on start up
  sched/debug: Add deadline scheduler bandwidth ratio to /proc/sched_debug
  sched/debug: Move sched_domain_sysctl to debug.c
  sched/debug: Move the /sys/kernel/debug/sched_features file setup into debug.c
  sched/rt: Fix PI handling vs. sched_setscheduler()
  sched/core: Remove duplicated sched_group_set_shares() prototype
  sched/fair: Consolidate nohz CPU load update code
  sched/fair: Avoid using decay_load_missed() with a negative value
  sched/deadline: Always calculate end of period on sched_yield()
  sched/cgroup: Fix cgroup entity load tracking tear-down
  rcu: Use simple wait queues where possible in rcutree
  ...
2016-03-14 19:14:06 -07:00
Linus Torvalds d88bfe1d68 Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS updates from Ingo Molnar:
 "Various RAS updates:

   - AMD MCE support updates for future CPUs, fixes and 'SMCA' (Scalable
     MCA) error decoding support (Aravind Gopalakrishnan)

   - x86 memcpy_mcsafe() support, to enable smart(er) hardware error
     recovery in NVDIMM drivers, based on an extension of the x86
     exception handling code.  (Tony Luck)"

* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  EDAC/sb_edac: Fix computation of channel address
  x86/mm, x86/mce: Add memcpy_mcsafe()
  x86/mce/AMD: Document some functionality
  x86/mce: Clarify comments regarding deferred error
  x86/mce/AMD: Fix logic to obtain block address
  x86/mce/AMD, EDAC: Enable error decoding of Scalable MCA errors
  x86/mce: Move MCx_CONFIG MSR definitions
  x86/mce: Check for faults tagged in EXTABLE_CLASS_FAULT exception table entries
  x86/mm: Expand the exception table logic to allow new handling options
  x86/mce/AMD: Set MCAX Enable bit
  x86/mce/AMD: Carve out threshold block preparation
  x86/mce/AMD: Fix LVT offset configuration for thresholding
  x86/mce/AMD: Reduce number of blocks scanned per bank
  x86/mce/AMD: Do not perform shared bank check for future processors
  x86/mce: Fix order of AMD MCE init function call
2016-03-14 18:43:51 -07:00
Yaniv Gardi 54b879b76e scsi: ufs-qcom: add number of lanes per direction
Different platform may have different number of lanes
for the UFS link.
Add parameter to device tree specifying how many lanes
should be configured for the UFS link.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-03-14 21:04:45 -04:00
Linus Torvalds e71c2c1eeb Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
 "Main kernel side changes:

   - Big reorganization of the x86 perf support code.  The old code grew
     organically deep inside arch/x86/kernel/cpu/perf* and its naming
     became somewhat messy.

     The new location is under arch/x86/events/, using the following
     cleaner hierarchy of source code files:

       perf/x86: Move perf_event.c .................. => x86/events/core.c
       perf/x86: Move perf_event_amd.c .............. => x86/events/amd/core.c
       perf/x86: Move perf_event_amd_ibs.c .......... => x86/events/amd/ibs.c
       perf/x86: Move perf_event_amd_iommu.[ch] ..... => x86/events/amd/iommu.[ch]
       perf/x86: Move perf_event_amd_uncore.c ....... => x86/events/amd/uncore.c
       perf/x86: Move perf_event_intel_bts.c ........ => x86/events/intel/bts.c
       perf/x86: Move perf_event_intel.c ............ => x86/events/intel/core.c
       perf/x86: Move perf_event_intel_cqm.c ........ => x86/events/intel/cqm.c
       perf/x86: Move perf_event_intel_cstate.c ..... => x86/events/intel/cstate.c
       perf/x86: Move perf_event_intel_ds.c ......... => x86/events/intel/ds.c
       perf/x86: Move perf_event_intel_lbr.c ........ => x86/events/intel/lbr.c
       perf/x86: Move perf_event_intel_pt.[ch] ...... => x86/events/intel/pt.[ch]
       perf/x86: Move perf_event_intel_rapl.c ....... => x86/events/intel/rapl.c
       perf/x86: Move perf_event_intel_uncore.[ch] .. => x86/events/intel/uncore.[ch]
       perf/x86: Move perf_event_intel_uncore_nhmex.c => x86/events/intel/uncore_nmhex.c
       perf/x86: Move perf_event_intel_uncore_snb.c   => x86/events/intel/uncore_snb.c
       perf/x86: Move perf_event_intel_uncore_snbep.c => x86/events/intel/uncore_snbep.c
       perf/x86: Move perf_event_knc.c .............. => x86/events/intel/knc.c
       perf/x86: Move perf_event_p4.c ............... => x86/events/intel/p4.c
       perf/x86: Move perf_event_p6.c ............... => x86/events/intel/p6.c
       perf/x86: Move perf_event_msr.c .............. => x86/events/msr.c

     (Borislav Petkov)

   - Update various x86 PMU constraint and hw support details (Stephane
     Eranian)

   - Optimize kprobes for BPF execution (Martin KaFai Lau)

   - Rewrite, refactor and fix the Intel uncore PMU driver code (Thomas
     Gleixner)

   - Rewrite, refactor and fix the Intel RAPL PMU code (Thomas Gleixner)

   - Various fixes and smaller cleanups.

  There are lots of perf tooling updates as well.  A few highlights:

  perf report/top:

     - Hierarchy histogram mode for 'perf top' and 'perf report',
       showing multiple levels, one per --sort entry: (Namhyung Kim)

       On a mostly idle system:

         # perf top --hierarchy -s comm,dso

       Then expand some levels and use 'P' to take a snapshot:

         # cat perf.hist.0
         -  92.32%         perf
               58.20%         perf
               22.29%         libc-2.22.so
                5.97%         [kernel]
                4.18%         libelf-0.165.so
                1.69%         [unknown]
         -   4.71%         qemu-system-x86
                3.10%         [kernel]
                1.60%         qemu-system-x86_64 (deleted)
         +   2.97%         swapper
         #

     - Add 'L' hotkey to dynamicly set the percent threshold for
       histogram entries and callchains, i.e.  dynamicly do what the
       --percent-limit command line option to 'top' and 'report' does.
       (Namhyung Kim)

  perf mem:

     - Allow specifying events via -e in 'perf mem record', also listing
       what events can be specified via 'perf mem record -e list' (Jiri
       Olsa)

  perf record:

     - Add 'perf record' --all-user/--all-kernel options, so that one
       can tell that all the events in the command line should be
       restricted to the user or kernel levels (Jiri Olsa), i.e.:

         perf record -e cycles:u,instructions:u

       is equivalent to:

         perf record --all-user -e cycles,instructions

     - Make 'perf record' collect CPU cache info in the perf.data file header:

         $ perf record usleep 1
         [ perf record: Woken up 1 times to write data ]
         [ perf record: Captured and wrote 0.017 MB perf.data (7 samples) ]
         $ perf report --header-only -I | tail -10 | head -8
         # CPU cache info:
         #  L1 Data                 32K [0-1]
         #  L1 Instruction          32K [0-1]
         #  L1 Data                 32K [2-3]
         #  L1 Instruction          32K [2-3]
         #  L2 Unified             256K [0-1]
         #  L2 Unified             256K [2-3]
         #  L3 Unified            4096K [0-3]

       Will be used in 'perf c2c' and eventually in 'perf diff' to
       allow, for instance running the same workload in multiple
       machines and then when using 'diff' show the hardware difference.
       (Jiri Olsa)

     - Improved support for Java, using the JVMTI agent library to do
       jitdumps that then will be inserted in synthesized
       PERF_RECORD_MMAP2 events via 'perf inject' pointed to synthesized
       ELF files stored in ~/.debug and keyed with build-ids, to allow
       symbol resolution and even annotation with source line info, see
       the changeset comments to see how to use it (Stephane Eranian)

  perf script/trace:

     - Decode data_src values (e.g.  perf.data files generated by 'perf
       mem record') in 'perf script': (Jiri Olsa)

         # perf script
           perf 693 [1] 4.088652: 1 cpu/mem-loads,ldlat=30/P: ffff88007d0b0f40 68100142 L1 hit|SNP None|TLB L1 or L2 hit|LCK No <SNIP>
                                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
     - Improve support to 'data_src', 'weight' and 'addr' fields in
       'perf script' (Jiri Olsa)

     - Handle empty print fmts in 'perf script -s' i.e. when running
       python or perl scripts (Taeung Song)

  perf stat:

     - 'perf stat' now shows shadow metrics (insn per cycle, etc) in
       interval mode too.  E.g:

         # perf stat -I 1000 -e instructions,cycles sleep 1
         #         time   counts unit events
            1.000215928  519,620      instructions     #  0.69 insn per cycle
            1.000215928  752,003      cycles
         <SNIP>

     - Port 'perf kvm stat' to PowerPC (Hemant Kumar)

     - Implement CSV metrics output in 'perf stat' (Andi Kleen)

  perf BPF support:

     - Support converting data from bpf events in 'perf data' (Wang Nan)

     - Print bpf-output events in 'perf script': (Wang Nan).

         # perf record -e bpf-output/no-inherit,name=evt/ -e ./test_bpf_output_3.c/map:channel.event=evt/ usleep 1000
         # perf script
            usleep  4882 21384.532523:   evt:  ffffffff810e97d1 sys_nanosleep ([kernel.kallsyms])
             BPF output: 0000: 52 61 69 73 65 20 61 20  Raise a
                         0008: 42 50 46 20 65 76 65 6e  BPF even
                         0010: 74 21 00 00              t!..
             BPF string: "Raise a BPF event!"
         #

     - Add API to set values of map entries in a BPF object, be it
       individual map slots or ranges (Wang Nan)

     - Introduce support for the 'bpf-output' event (Wang Nan)

     - Add glue to read perf events in a BPF program (Wang Nan)

     - Improve support for bpf-output events in 'perf trace' (Wang Nan)

  ... and tons of other changes as well - see the shortlog and git log
  for details!"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (342 commits)
  perf stat: Add --metric-only support for -A
  perf stat: Implement --metric-only mode
  perf stat: Document CSV format in manpage
  perf hists browser: Check sort keys before hot key actions
  perf hists browser: Allow thread filtering for comm sort key
  perf tools: Add sort__has_comm variable
  perf tools: Recalc total periods using top-level entries in hierarchy
  perf tools: Remove nr_sort_keys field
  perf hists browser: Cleanup hist_browser__fprintf_hierarchy_entry()
  perf tools: Remove hist_entry->fmt field
  perf tools: Fix command line filters in hierarchy mode
  perf tools: Add more sort entry check functions
  perf tools: Fix hist_entry__filter() for hierarchy
  perf jitdump: Build only on supported archs
  tools lib traceevent: Add '~' operation within arg_num_eval()
  perf tools: Omit unnecessary cast in perf_pmu__parse_scale
  perf tools: Pass perf_hpp_list all the way through setup_sort_list
  perf tools: Fix perf script python database export crash
  perf jitdump: DWARF is also needed
  perf bench mem: Prepare the x86-64 build for upstream memcpy_mcsafe() changes
  ...
2016-03-14 17:58:53 -07:00
Linus Torvalds d09e356ad0 Merge branch 'mm-readonly-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull read-only kernel memory updates from Ingo Molnar:
 "This tree adds two (security related) enhancements to the kernel's
  handling of read-only kernel memory:

   - extend read-only kernel memory to a new class of formerly writable
     kernel data: 'post-init read-only memory' via the __ro_after_init
     attribute, and mark the ARM and x86 vDSO as such read-only memory.

     This kind of attribute can be used for data that requires a once
     per bootup initialization sequence, but is otherwise never modified
     after that point.

     This feature was based on the work by PaX Team and Brad Spengler.

     (by Kees Cook, the ARM vDSO bits by David Brown.)

   - make CONFIG_DEBUG_RODATA always enabled on x86 and remove the
     Kconfig option.  This simplifies the kernel and also signals that
     read-only memory is the default model and a first-class citizen.
     (Kees Cook)"

* 'mm-readonly-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  ARM/vdso: Mark the vDSO code read-only after init
  x86/vdso: Mark the vDSO code read-only after init
  lkdtm: Verify that '__ro_after_init' works correctly
  arch: Introduce post-init read-only memory
  x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option
  mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings
  asm-generic: Consolidate mark_rodata_ro()
2016-03-14 16:58:50 -07:00
Zhang Rui 032f4a1e5a Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal into thermal-soc 2016-03-15 07:53:01 +08:00
SeongJae Park 65f95ff2e4 documentation: Clarify compiler store-fusion example
The compiler store-fusion example in memory-barriers.txt uses a C
comment to represent arbitrary code that does not update a given
variable.  Unfortunately, someone could reasonably interpret the
comment as instead referring to the following line of code.  This
commit therefore replaces the comment with a string that more
clearly represents the arbitrary code.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-03-14 15:52:19 -07:00
Paul E. McKenney f36fe1e70b documentation: Transitivity is not cumulativity
The "transitivity" section mentions cumulativity in a potentially
confusing way.  Contrary to the current wording, cumulativity is
not transitivity, but rather a hardware discipline that can be used
to implement transitivity on ARM and PowerPC CPUs.  This commit
therefore deletes the mention of cumulativity.

Reported-by: Luc Maranget <luc.maranget@inria.fr>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-03-14 15:52:19 -07:00
Paul E. McKenney 37ef0341ca documentation: Add alternative release-acquire outcome
The memory-barriers.txt discussion of local transitivity and
release-acquire chains leaves out discussion of the outcome of
the read from "u".  This commit therefore adds an outcome showing
that you can get a "1" from this read even if the release-acquire
pairs don't line up.

Reported-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-03-14 15:52:18 -07:00
Paul E. McKenney c535cc9292 documentation: Distinguish between local and global transitivity
The introduction of smp_load_acquire() and smp_store_release() had
the side effect of introducing a weaker notion of transitivity:
The transitivity of full smp_mb() barriers is global, but that
of smp_store_release()/smp_load_acquire() chains is local.  This
commit therefore introduces the notion of local transitivity and
gives an example.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Reported-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-03-14 15:52:18 -07:00
Paul E. McKenney 92a84dd210 documentation: Subsequent writes ordered by rcu_dereference()
The current memory-barriers.txt does not address the possibility of
a write to a dereferenced pointer.  This should be rare, but when it
happens, we need that write -not- to be clobbered by the initialization.
This commit therefore adds an example showing a data dependency ordering
a later data-dependent write.

Reported-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-03-14 15:52:17 -07:00
Paul E. McKenney 0e4bd2aba3 documentation: Remove obsolete reference to RCU-protected indexes
Commit #1ebee8017d84 (rcu: Eliminate array-index-based RCU primitives)
eliminated the primitives supporting RCU-protected array indexes, but
failed to update Documentation/memory-barriers.txt accordingly.  This
commit therefore removes the discussion of RCU-protected array indexes.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-03-14 15:52:17 -07:00
Paul E. McKenney 895f554222 documentation: Fix memory-barriers.txt section references
This commit fixes a couple of "Compiler Barrier" section references to
be "COMPILER BARRIER".  This makes it easier to find the section in
the usual text editors.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-03-14 15:52:16 -07:00
Paul E. McKenney 7817b799ed documentation: Fix control dependency and identical stores
The summary of the "CONTROL DEPENDENCIES" section incorrectly states that
barrier() may be used to prevent compiler reordering when more than one
leg of the control-dependent "if" statement start with identical stores.
This is incorrect at high optimization levels.  This commit therefore
updates the summary to match the detailed description.

Reported by: Jianyu Zhan <nasa4836@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-03-14 15:52:16 -07:00
Vivien Didelot 71327a4e7d net: dsa: rename port_*_bridge routines
Rename DSA port_join_bridge and port_leave_bridge routines to
respectively port_bridge_join and port_bridge_leave in order to respect
an implicit Port::Bridge namespace.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-14 16:05:31 -04:00
Mike Marshall ab6652524a Linux 4.5
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Orangefs: merge to v4.5

Merge tag 'v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into current

Linux 4.5
2016-03-14 15:39:42 -04:00
David Daney 379d7ac7ca phy: mdio-thunder: Add driver for Cavium Thunder SoC MDIO buses.
The Cavium Thunder SoCs have multiple MIDO buses that are part of a
single PCI device.  To model this in the device tree we call the PCI
parent device a "cavium,thunder-8890-mdio-nexus", it has several
children, one for each MDIO bus.

The MDIO bus hardware is identical to that found in the OCTEON SoCs,
so we use that code for things that are not part of the PCI driver
probe/remove

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-14 15:27:22 -04:00
Florian Fainelli 387178ec26 Documentation: networking: phy.txt: Add missing functions
Some new development in PHYLIB added new function pointers to the struct
phy_driver, document these.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-14 15:00:04 -04:00
Marcin Wojtas dc35a10f68 net: mvneta: bm: add support for hardware buffer management
Buffer manager (BM) is a dedicated hardware unit that can be used by all
ethernet ports of Armada XP and 38x SoC's. It allows to offload CPU on RX
path by sparing DRAM access on refilling buffer pool, hardware-based
filling of descriptor ring data and better memory utilization due to HW
arbitration for using 'short' pools for small packets.

Tests performed with A388 SoC working as a network bridge between two
packet generators showed increase of maximum processed 64B packets by
~20k (~555k packets with BM enabled vs ~535 packets without BM). Also
when pushing 1500B-packets with a line rate achieved, CPU load decreased
from around 25% without BM to 20% with BM.

BM comprise up to 4 buffer pointers' (BP) rings kept in DRAM, which
are called external BP pools - BPPE. Allocating and releasing buffer
pointers (BP) to/from BPPE is performed indirectly by write/read access
to a dedicated internal SRAM, where internal BP pools (BPPI) are placed.
BM hardware controls status of BPPE automatically, as well as assigning
proper buffers to RX descriptors. For more details please refer to
Functional Specification of Armada XP or 38x SoC.

In order to enable support for a separate hardware block, common for all
ports, a new driver has to be implemented ('mvneta_bm'). It provides
initialization sequence of address space, clocks, registers, SRAM,
empty pools' structures and also obtaining optional configuration
from DT (please refer to device tree binding documentation). mvneta_bm
exposes also a necessary API to mvneta driver, as well as a dedicated
structure with BM information (bm_priv), whose presence is used as a
flag notifying of BM usage by port. It has to be ensured that mvneta_bm
probe is executed prior to the ones in ports' driver. In case BM is not
used or its probe fails, mvneta falls back to use software buffer
management.

A sequence executed in mvneta_probe function is modified in order to have
an access to needed resources before possible port's BM initialization is
done. According to port-pools mapping provided by DT appropriate registers
are configured and the buffer pools are filled. RX path is modified
accordingly. Becaues the hardware allows a wide variety of configuration
options, following assumptions are made:
* using BM mechanisms can be selectively disabled/enabled basing
  on DT configuration among the ports
* 'long' pool's single buffer size is tied to port's MTU
* using 'long' pool by port is obligatory and it cannot be shared
* using 'short' pool for smaller packets is optional
* one 'short' pool can be shared among all ports

This commit enables hardware buffer management operation cooperating with
existing mvneta driver. New device tree binding documentation is added and
the one of mvneta is updated accordingly.

[gregory.clement@free-electrons.com: removed the suspend/resume part]

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-14 12:19:46 -04:00
Marcin Wojtas eb43e02313 misc: sram: add optional ioremap without write combining
Some SRAM users may require non-bufferable access to the memory, which is
impossible, because devm_ioremap_wc() is used for setting sram->virt_base.

This commit adds optional flag 'no-memory-wc', which allow to choose remap
method, using DT property. Documentation is updated accordingly.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-14 12:19:45 -04:00
Joshua Henderson af556c11f0 dt/bindings: Add bindings for the PIC32 real time clock
Document the devicetree bindings for the real time clock found
on Microchip PIC32 class devices.

Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:21 +01:00
Joshua Clayton 5495a4159f rtc: implement a sysfs interface for clock offset
clock offset may be set and read in decimal parts per billion
attribute is /sys/class/rtc/rtcN/offset
The attribute is only visible for rtcs that have set_offset implemented.

Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:16 +01:00
Oleksij Rempel 7444845b08 doc: dt: add documentation for alphascale,asm9260-rtc
Document Alphascale asm9260 RTC bindings

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:14 +01:00
Akinobu Mita 6c6ff145b3 rtc: ds1307: add clock provider support for DS3231
DS3231 has programmable square-wave output signal.
This enables to use this feature as a clock provider of
common clock framework.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:13 +01:00
Steffen Trumtrar cfe941628a Documentation: devicetree: add epson rx6110 binding
Add the binding documentation for the Epson RX6110 RTC.

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14 17:08:09 +01:00
Jens Axboe d436641439 cpqarray: remove it from the kernel
We disabled the ability to enable this driver back in October of 2013,
we should be able to safely remove it at this point. The initial goal
was to remove it in 3.15, so now is the time.

Signed-off-by: Jens Axboe <axboe@fb.com>
2016-03-14 09:06:01 -06:00
Rafael J. Wysocki 4ed3900427 Merge branch 'pm-cpufreq'
* pm-cpufreq: (94 commits)
  intel_pstate: Do not skip samples partially
  intel_pstate: Remove freq calculation from intel_pstate_calc_busy()
  intel_pstate: Move intel_pstate_calc_busy() into get_target_pstate_use_performance()
  intel_pstate: Optimize calculation for max/min_perf_adj
  intel_pstate: Remove extra conversions in pid calculation
  cpufreq: Move scheduler-related code to the sched directory
  Revert "cpufreq: postfix policy directory with the first CPU in related_cpus"
  cpufreq: Reduce cpufreq_update_util() overhead a bit
  cpufreq: Select IRQ_WORK if CPU_FREQ_GOV_COMMON is set
  cpufreq: Remove 'policy->governor_enabled'
  cpufreq: Rename __cpufreq_governor() to cpufreq_governor()
  cpufreq: Relocate handle_update() to kill its declaration
  cpufreq: governor: Drop unnecessary checks from show() and store()
  cpufreq: governor: Fix race in dbs_update_util_handler()
  cpufreq: governor: Make gov_set_update_util() static
  cpufreq: governor: Narrow down the dbs_data_mutex coverage
  cpufreq: governor: Make dbs_data_mutex static
  cpufreq: governor: Relocate definitions of tuners structures
  cpufreq: governor: Move per-CPU data to the common code
  cpufreq: governor: Make governor private data per-policy
  ...
2016-03-14 14:22:03 +01:00
Rafael J. Wysocki bdeabccdf9 Merge branches 'acpi-ec', 'acpi-fan', 'acpi-video' and 'acpi-misc'
* acpi-ec:
  ACPI / EC: Deny write access unless requested by module param

* acpi-fan:
  ACPI / fan: Make struct dev_pm_ops const

* acpi-video:
  ACPI / video: remove unused device_decode array

* acpi-misc:
  ACPI / util: remove redundant check if element is NULL
  ACPI: Add acpi_force_32bit_fadt_addr option to force 32 bit FADT addresses
  drivers/acpi: make pmic/intel_pmic_crc.c explicitly non-modular
  drivers/acpi: make apei/ghes.c more explicitly non-modular
  drivers/acpi: make bgrt driver explicitly non-modular
2016-03-14 14:21:23 +01:00
Takashi Iwai ca80e26a59 ASoC: Updates for v4.6
The main thing in terms of the core this time around has been some
 additional framework work for dynamic topologies (though we *still*
 don't appear to have a stable ABI for the topology code, it's probably
 worth considering if this will ever happen...).  Otherwise the work has
 almost all been in the drivers:
 
  - HDMI support for Sky Lake, along with other fixes and enhancements
    for the Intel drivers.
  - Lots of improvements to the Renesas drivers.
  - Capture support for Qualcomm drivers.
  - Support for TI DaVinci DRA7xxx devices.
  - New machine drivers for Freescale systems with Cirrus CODECs,
    Mediatek systems with RT5650 CODECs.
  - New CPU drivers for Allwinner S/PDIF controllers
  - New CODEC drivers for Maxim MAX9867 and MAX98926 and Realtek RT5514.
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Merge tag 'asoc-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v4.6

The main thing in terms of the core this time around has been some
additional framework work for dynamic topologies (though we *still*
don't appear to have a stable ABI for the topology code, it's probably
worth considering if this will ever happen...).  Otherwise the work has
almost all been in the drivers:

 - HDMI support for Sky Lake, along with other fixes and enhancements
   for the Intel drivers.
 - Lots of improvements to the Renesas drivers.
 - Capture support for Qualcomm drivers.
 - Support for TI DaVinci DRA7xxx devices.
 - New machine drivers for Freescale systems with Cirrus CODECs,
   Mediatek systems with RT5650 CODECs.
 - New CPU drivers for Allwinner S/PDIF controllers
 - New CODEC drivers for Maxim MAX9867 and MAX98926 and Realtek RT5514.
2016-03-14 14:03:29 +01:00
Michael Ellerman a1b5344620 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next
Freescale updates from Scott:

"Highlights include 8xx optimizations, 32-bit checksum optimizations,
86xx consolidation, e5500/e6500 cpu hotplug, more fman and other dt
bits, and minor fixes/cleanup."
2016-03-14 20:05:14 +11:00
David Rivshin e0442d7def leds: Add SN3218 and SN3216 support to the IS31FL32XX driver
Si-En Technology was acquired by ISSI in 2011, and it appears that
the IS31FL3218/IS31FL3216 are just rebranded SN3218/SN3216 devices.

Add the "si-en,sn3218" and "si-en,sn3216" compatible strings into the
IS31FL32XX driver as aliases for the issi equivalents, and update
binding documentation.

Datasheets:
    IS31FL3218: http://www.issi.com/WW/pdf/31FL3218.pdf
    SN3218:     http://www.si-en.com/uploadpdf/s2011517171720.pdf

    IS31FL3216: http://www.issi.com/WW/pdf/31FL3216.pdf
    SN3216:     http://www.si-en.com/uploadpdf/SN3216201152410148.pdf

Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:22 +01:00
Stefan Wahren 204a70bba9 of: Add vendor prefix for Si-En Technology
Si-En Technology is a fabless design house which offers
audio amplifiers, LED drivers and sensors.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:22 +01:00
David Rivshin 4ef31e4993 DT: leds: Add binding for the ISSI IS31FL32xx family of LED controllers
This adds a binding description for the is31fl3236/35/18/16 I2C LED
controllers.

Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:21 +01:00
David Rivshin b63e55b9cd DT: Add vendor prefix for Integrated Silicon Solutions Inc.
ISSI is the stock ticker Integrated Silicon Solutions Inc.
Company website: http://www.issi.com

Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14 09:22:21 +01:00
Thomas Gleixner 8e7fe2660d irqchip core changes for v4.6 (round 3)
- mvebu
    - update dt binding docs for new odmi driver
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Merge tag 'irqchip-core-4.6-3' of git://git.infradead.org/users/jcooper/linux into irq/core

Pull irqchip core changes from Jason Cooper:

- mvebu: Update dt binding docs for new odmi driver
2016-03-14 08:40:29 +01:00
Vinod Koul 254efeec31 Merge branch 'topic/qcom' into for-linus 2016-03-14 11:18:22 +05:30
Eric Anholt 4653f22e9a dt-bindings: Add binding docs for V3D.
This was missed in the upstreaming process.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
2016-03-13 18:54:07 -07:00
Dave Airlie 9b61c0fcdf Merge drm-fixes into drm-next.
Nouveau wanted this to avoid some worse conflicts when I merge that.
2016-03-14 09:46:02 +10:00
Jason Cooper 725b06f33d Merge branch 'irqchip/mvebu' into irqchip/core 2016-03-13 20:38:08 +00:00
David S. Miller 00e3d2ef18 wireless-drivers patches for 4.6
Major changes:
 
 ath10k
 
 * dt: add bindings for ipq4019 wifi block
 * start adding support for qca4019 chip
 
 ath9k
 
 * add device ID for Toshiba WLM-20U2/GN-1080
 * allow more than one interface on DFS channels
 
 bcma
 
 * move flash detection code to ChipCommon core driver
 
 brcmfmac
 
 * IPv6 Neighbor discovery offload
 * driver settings that can be populated from different sources
 * country code setting in firmware
 * length checks to validate firmware events
 * new way to determine device memory size needed for BCM4366
 * various offloads during Wake on Wireless LAN (WoWLAN)
 * full Management Frame Protection (MFP) support
 
 iwlwifi
 
 * add support for thermal device / cooling device
 * improvements in scheduled scan without profiles
 * new firmware support (-21.ucode)
 * add MSIX support for 9000 devices
 * enable MU-MIMO and take care of firmware restart
 * add support for large SKBs in mvm to reach A-MSDU
 * add support for filtering frames from a BA session
 * start implementing the new Rx path for 9000 devices
 * enable the new Radio Resource Management (RRM) nl80211 feature flag
 * add a new module paramater to disable VHT
 * build infrastructure for Dynamic Queue Allocation
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Merge tag 'wireless-drivers-next-for-davem-2016-03-09' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers patches for 4.6

Major changes:

ath10k

* dt: add bindings for ipq4019 wifi block
* start adding support for qca4019 chip

ath9k

* add device ID for Toshiba WLM-20U2/GN-1080
* allow more than one interface on DFS channels

bcma

* move flash detection code to ChipCommon core driver

brcmfmac

* IPv6 Neighbor discovery offload
* driver settings that can be populated from different sources
* country code setting in firmware
* length checks to validate firmware events
* new way to determine device memory size needed for BCM4366
* various offloads during Wake on Wireless LAN (WoWLAN)
* full Management Frame Protection (MFP) support

iwlwifi

* add support for thermal device / cooling device
* improvements in scheduled scan without profiles
* new firmware support (-21.ucode)
* add MSIX support for 9000 devices
* enable MU-MIMO and take care of firmware restart
* add support for large SKBs in mvm to reach A-MSDU
* add support for filtering frames from a BA session
* start implementing the new Rx path for 9000 devices
* enable the new Radio Resource Management (RRM) nl80211 feature flag
* add a new module paramater to disable VHT
* build infrastructure for Dynamic Queue Allocation
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-13 15:03:34 -04:00
Mark Brown d6d50a8f17 Merge remote-tracking branches 'regulator/topic/ltc3589', 'regulator/topic/max77620', 'regulator/topic/max77686', 'regulator/topic/max77802' and 'regulator/topic/maxim' into regulator-next 2016-03-13 15:19:47 +07:00
Mark Brown d1f83021d5 Merge remote-tracking branches 'regulator/topic/discharge', 'regulator/topic/fan53555', 'regulator/topic/gpio', 'regulator/topic/hi655x' and 'regulator/topic/lp872x' into regulator-next 2016-03-13 15:19:35 +07:00
Mark Brown 92aa18f88c Merge remote-tracking branches 'regulator/topic/act8865', 'regulator/topic/act8945a', 'regulator/topic/axp20x' and 'regulator/topic/cs4271' into regulator-next 2016-03-13 15:19:24 +07:00
Mark Brown 905373b637 Merge remote-tracking branches 'regulator/fix/ad5398', 'regulator/fix/da9210', 'regulator/fix/max77802' and 'regulator/fix/pv88090' into regulator-linus 2016-03-13 15:19:09 +07:00
Mark Brown d4a6360f19 Merge remote-tracking branches 'asoc/topic/sunxi', 'asoc/topic/topology' and 'asoc/topic/wm8974' into asoc-next 2016-03-13 15:17:56 +07:00
Mark Brown b25d2803e9 Merge remote-tracking branches 'asoc/topic/rt5640', 'asoc/topic/rt5659', 'asoc/topic/samsung' and 'asoc/topic/ssm4567' into asoc-next 2016-03-13 15:17:47 +07:00
Mark Brown 4bfd5ba31f Merge remote-tracking branches 'asoc/topic/rcar', 'asoc/topic/rockchip', 'asoc/topic/rt298', 'asoc/topic/rt5514' and 'asoc/topic/rt5616' into asoc-next 2016-03-13 15:17:35 +07:00
Mark Brown 88f183484a Merge remote-tracking branches 'asoc/topic/max98926', 'asoc/topic/mtk', 'asoc/topic/mxs-saif', 'asoc/topic/nau8825' and 'asoc/topic/omap' into asoc-next 2016-03-13 15:17:18 +07:00
Mark Brown ab96d9d603 Merge remote-tracking branches 'asoc/topic/fsl-sai', 'asoc/topic/fsl-ssl', 'asoc/topic/hdac' and 'asoc/topic/max9867' into asoc-next 2016-03-13 15:17:09 +07:00
Mark Brown 6fee37df02 Merge remote-tracking branches 'asoc/topic/davinci', 'asoc/topic/fsl-card' and 'asoc/topic/fsl-mpc5200' into asoc-next 2016-03-13 15:17:01 +07:00
Mark Brown 343b890871 Merge remote-tracking branches 'asoc/topic/ab8500', 'asoc/topic/adau17x1', 'asoc/topic/ads117x', 'asoc/topic/adsp' and 'asoc/topic/arizona' into asoc-next 2016-03-13 15:16:41 +07:00
Mark Brown 19142ae671 Merge remote-tracking branch 'asoc/topic/pcm179x' into asoc-next 2016-03-13 15:16:33 +07:00
Olof Johansson 8061a17ee3 This series adds initial support for the Amlogic S905 based
Tronsmart Vega S95 Pro, Meta and Telos TV boxes.
 
 - Add new DTS to enable support for the boards
 - Add documentation for compatibles and vendor prefix
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Merge tag 'for-v4.6/gxbb-dt' of https://github.com/carlocaione/linux-meson into next/dt64

This series adds initial support for the Amlogic S905 based
Tronsmart Vega S95 Pro, Meta and Telos TV boxes.

- Add new DTS to enable support for the boards
- Add documentation for compatibles and vendor prefix

* tag 'for-v4.6/gxbb-dt' of https://github.com/carlocaione/linux-meson:
  ARM64: dts: amlogic: Add Tronsmart Vega S95 configs
  Documentation: devicetree: amlogic: Document Tronsmart Vega S95 boards
  ARM64: dts: Prepare configs for Amlogic Meson GXBaby
  Documentation: devicetree: amlogic: Document Meson GXBaby
  devicetree: bindings: Add vendor prefix for Tronsmart

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-12 17:43:08 -08:00
Olof Johansson c7e1d89b34 Samsung Exynos ARM64 improvements for v4.6:
1. Remove separate ARCH_EXYNOS7 symbol and consolidate it into
    one ARCH_EXYNOS.
    This depends on clk tree: removal of last presence of ARCH_EXYNOS7.
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Merge tag 'samsung-soc64-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/arm64

Samsung Exynos ARM64 improvements for v4.6:
1. Remove separate ARCH_EXYNOS7 symbol and consolidate it into
   one ARCH_EXYNOS.

This depends on clk tree: removal of last presence of ARCH_EXYNOS7.

* tag 'samsung-soc64-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  arm64: EXYNOS: Consolidate ARCH_EXYNOS7 symbol into ARCH_EXYNOS
  clk: samsung: Don't build ARMv8 clock drivers on ARMv7
  clk: samsung: Enable COMPILE_TEST for Samsung clocks
  clk: Move vendor's Kconfig into CCF menu section
  clk: mediatek: Fix memory leak on clock init fail
  clk: move the common clock's to_clk_*(_hw) macros to clk-provider.h
  clk: xgene: Remove return from void function
  clk: xgene: Add SoC and PMD PLL clocks with v2 hardware
  Documentation: Update APM X-Gene clock binding for v2 hardware
  clk: s2mps11: remove redundant code
  clk: s2mps11: remove redundant static variables declaration
  clk: s2mps11: allocate only one structure for clock init
  clk: s2mps11: merge two for loops in one
  clk-divider: make sure read-only dividers do not write to their register
  clk: tango4: rename ARCH_TANGOX to ARCH_TANGO
  clk: scpi: Fix checking return value of platform_device_register_simple()
  clk: mvebu: Mark ioremapped memory as __iomem

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-12 17:13:34 -08:00
Olof Johansson c8c904471a mvebu dt64 for 4.6 (part 2)
Add support for the Armada 7K and 8K SoCs and the Armada 8040 DB board
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Merge tag 'mvebu-dt64-4.6-2' of git://git.infradead.org/linux-mvebu into next/dt64

mvebu dt64 for 4.6 (part 2)

Add support for the Armada 7K and 8K SoCs and the Armada 8040 DB board

* tag 'mvebu-dt64-4.6-2' of git://git.infradead.org/linux-mvebu:
  arm64: dts: marvell: re-order Device Tree nodes for Armada AP806
  arm64: dts: marvell: update Armada AP806 clock description
  arm64: dts: marvell: add Device Tree files for Armada 7K/8K

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-12 17:05:27 -08:00
Stefan Richter e38e5ce81c firewire: ABI documentation: libhinawa uses firewire-cdev
Hinawa [https://github.com/takaswie/libhinawa/] is a library for
access to IEEE 1394 devices.  As a gobject introspection library, it
facilitates writing applications in high-level programming languages.
Besides generic I/O via /dev/fw* (firewire-cdev ABI), it also supports
control of IEEE 1394 audio hardware via ALSA hwdep ABIs which are
provided by sound/firewire drivers.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2016-03-12 10:55:46 +01:00
James Johnston abfa6cd8cd modsign: Fix documentation on module signing enforcement parameter.
Modify the documentation to match the actual parameter as implemented in
kernel/module.c:273.

Signed-off-by: James Johnston <johnstonj.public@codenest.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-03-12 01:48:11 -07:00
Greg Hackmann 283ded1031 staging: goldfish: audio: add devicetree bindings
Introduce devicetree bindings to the Goldfish staging audio driver.

Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Jin Qian <jinqian@android.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11 22:09:09 -08:00
Kuninori Morimoto f1511a14a4 ASoC: rsnd: add simplified module explanation
Renesas sound driver user needs to read its datasheet when create DT.
But it is difficult to understand, because it has many modules
(SRC/CTU/MIX/DVC/SSIU/SSI/AudioDMAC/AudioDMACperiperi),
and many features (Asynchronous/Synchronous mode on SRC, CTU matrix,
DVC volume settings feature, Multi-SSI/TDM-SSI, etc).
This patch adds simplified explanation to help setting/understanding.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-12 13:03:41 +07:00
Christophe Leroy f15eea6684 powerpc: Update documentation for noltlbs kernel parameter
Now the noltlbs kernel parameter is also applicable to PPC8xx

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <oss@buserror.net>
2016-03-11 17:18:01 -06:00
David Daney 7b6e7ba8e8 PCI: thunder: Add driver for ThunderX-pass{1,2} on-chip devices
The cavium,pci-thunder-ecam devices are exactly ECAM-based PCI root
complexes.  These root complexes (loosely referred to as ECAM units in the
hardware manuals) are used to access the Thunder on-chip devices.  They
are special in that all the BARs on devices behind these root complexes are
at fixed addresses.

Add a driver for these devices that synthesizes Enhanced Allocation (EA)
capability entries for each BAR.

Since this EA synthesis is needed for exactly two chip models, we can hard-
code some assumptions about the device topology and the layout of the
config space of specific DEVFNs in the driver.

[bhelgaas: changelog, whitespace]
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
2016-03-11 16:10:48 -06:00
David Daney f12b76e56a PCI: thunder: Add PCIe host driver for ThunderX processors
The root complexes used to access off-chip PCIe devices (called PEM units
in the hardware manuals) on some Cavium ThunderX processors require quirky
access methods for the config space of the PCIe bridge.

Add a driver to provide these config space accessor functions.  Use the
pci-host-common code to configure the PCI machinery.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2016-03-11 15:53:41 -06:00
Linus Torvalds 2a4fb270da ARM: SoC fixes
Two more fixes for 4.5:
 
  - One is a fix for OMAP that is urgently needed to avoid DRA7xx chips from
    premature aging, by always keeping the Ethernet clock enabled.
 
  - The other solves a I/O memory layout issue on Armada, where SROM and PCI
    memory windows were conflicting in some configurations.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Two more fixes for 4.5:

   - One is a fix for OMAP that is urgently needed to avoid DRA7xx chips
     from premature aging, by always keeping the Ethernet clock enabled.

   - The other solves a I/O memory layout issue on Armada, where SROM
     and PCI memory windows were conflicting in some configurations"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: mvebu: fix overlap of Crypto SRAM with PCIe memory window
  ARM: dts: dra7: do not gate cpsw clock due to errata i877
  ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property
2016-03-11 12:35:54 -08:00
Bharat Kumar Gogada ab597d35ef PCI: xilinx-nwl: Add support for Xilinx NWL PCIe Host Controller
Add PCIe Root Port driver for Xilinx PCIe NWL bridge IP.

[bhelgaas: wait for link like dw_pcie_wait_for_link(), simplify bitmap
error path, typos, whitespace, fold in Dan Carpenter's PTR_ERR() fix]
Signed-off-by: Bharat Kumar Gogada <bharatku@xilinx.com>
Signed-off-by: Ravi Kiran Gummaluri <rgummal@xilinx.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
2016-03-11 12:42:31 -06:00
Dmitry Torokhov 62d5bdf972 Merge branch 'synaptics-rmi4' into next
Bring in support for devices using Synaptics RMI4 protocol, including
RMI4 bus, 2D sensor and button handlers, and SPI and I2C interface
drivers.
2016-03-11 09:51:25 -08:00
Parav Pandit 6c83e6cb0c Documentation: cgroup v2: Trivial heading correction.
Corrected the heading to match with index.

Signed-off-by: Parav Pandit <pandit.parav@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2016-03-11 12:13:28 -05:00
David Sterba 6788f5ca64 Documentation: btrfs: remove usage specific information
The document in the kernel sources is yet another palce where the
documentation would need to be updated, while it is not the primary
source. We actively maintain the wiki pages.

Signed-off-by: David Sterba <dsterba@suse.com>
2016-03-11 17:02:09 +01:00
Andre Przywara 96851d391d drivers: pinctrl: add driver for Allwinner A64 SoC
Based on the Allwinner A64 user manual and on the previous sunxi
pinctrl drivers this introduces the pin multiplex assignments for
the ARMv8 Allwinner A64 SoC.
Port A is apparently used for the fixed function DRAM controller, so
the ports start at B here (the manual mentions "n from 1 to 7", so
not starting at 0).

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-11 22:46:27 +07:00
Mark Brown c508709bcf Merge remote-tracking branches 'spi/topic/res', 'spi/topic/rockchip', 'spi/topic/sh', 'spi/topic/ti-qspi' and 'spi/topic/xilinx' into spi-next 2016-03-11 14:28:53 +07:00
Mark Brown b9facea19b Merge remote-tracking branches 'spi/topic/lp8841', 'spi/topic/msg', 'spi/topic/pl022' and 'spi/topic/pxa2xx' into spi-next 2016-03-11 14:28:43 +07:00
Mark Brown 6beb9fecbd Merge remote-tracking branches 'spi/topic/acpi', 'spi/topic/axi-engine', 'spi/topic/bcm2835' and 'spi/topic/bcm2835aux' into spi-next 2016-03-11 14:28:25 +07:00
Sheng Yang 32c76de346 target/user: Report capability of handling out-of-order completions to userspace
TCMU_MAILBOX_FLAG_CAP_OOOC was introduced, and userspace can check the flag
for out-of-order completion capability support.

Also update the document on how to use the feature.

Signed-off-by: Sheng Yang <sheng@yasker.org>
Reviewed-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-10 21:49:09 -08:00
Caesar Wang a7065bc37b dt-bindings: rockchip-mailbox: Add mailbox controller document on Rockchip SoCs
This add the necessary binding documentation for mailbox
found on RK3368 SoC.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2016-03-11 10:37:17 +07:00
Sinan Kaya 7f8f209fd6 dmaengine: add Qualcomm Technologies HIDMA management driver
The Qualcomm Technologies HIDMA device has been designed to support
virtualization technology. The driver has been divided into two to follow
the hardware design.

1. HIDMA Management driver
2. HIDMA Channel driver

Each HIDMA HW consists of multiple channels. These channels share some set
of common parameters. These parameters are initialized by the management
driver during power up. Same management driver is used for monitoring the
execution of the channels. Management driver can change the performance
behavior dynamically such as bandwidth allocation and prioritization.

The management driver is executed in host context and is the main
management entity for all channels provided by the device.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-03-11 07:42:23 +05:30
Sinan Kaya 858de34c0a dmaengine: hidma: Add Device Tree binding
Add documentation for the Qualcomm Technologies HIDMA binding.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-03-11 07:42:12 +05:30
Vennila Megavannan 6c9e50f894 staging/rdma/hfi1: Method to toggle "fast ECN" detection
Add a per port sysfs paramter to toggle cc_prescan/Fast ECN Detection and
remove the Kconfig option which was previously used to control this.

While am updating the sysfs documentation, fix the name of CCMgtA.

Reviewed-by: Arthur Kepner <arthur.kepner@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Vennila Megavannan <vennila.megavannan@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-10 20:37:50 -05:00
Andrew Duggan 48147b9768 Input: synaptics-rmi4 - add device tree support to the SPI transport driver
Add devicetree binding for SPI devices.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:04:25 -08:00
Andrew Duggan aaa27982b3 Input: synaptics-rmi4 - add device tree support for 2d sensors and F11
2D sensors have several parameter which can be set in the platform data.
This patch adds support for getting those values from devicetree.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:04:05 -08:00
Andrew Duggan d8a8b3edfd Input: synaptics-rmi4 - add device tree support for RMI4 I2C devices
Add devicetree binding for I2C devices and add bindings for optional
parameters in the function drivers. Parameters for function drivers are
defined in child nodes for each of the functions.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:02:41 -08:00
Joe Thornber 9ed84698fd dm cache: make the 'mq' policy an alias for 'smq'
smq seems to be performing better than the old mq policy in all
situations, as well as using a quarter of the memory.

Make 'mq' an alias for 'smq' when choosing a cache policy.  The tunables
that were present for the old mq are faked, and have no effect.  mq
should be considered deprecated now.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-03-10 17:12:08 -05:00
John Crispin 58ff9865b7 net-next: mediatek: document MediaTek SoC ethernet binding
This adds the binding documentation for the MediaTek Ethernet
controller.

Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-10 16:22:12 -05:00
Archit Taneja 438524c60f dt/bindings: qcom_nandc: Add DT bindings
Add DT bindings document for the Qualcomm NAND controller driver.

Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2016-03-10 10:52:22 -08:00
Paolo Bonzini 844a5fe219 KVM: MMU: fix ept=0/pte.u=1/pte.w=0/CR0.WP=0/CR4.SMEP=1/EFER.NX=0 combo
Yes, all of these are needed. :) This is admittedly a bit odd, but
kvm-unit-tests access.flat tests this if you run it with "-cpu host"
and of course ept=0.

KVM runs the guest with CR0.WP=1, so it must handle supervisor writes
specially when pte.u=1/pte.w=0/CR0.WP=0.  Such writes cause a fault
when U=1 and W=0 in the SPTE, but they must succeed because CR0.WP=0.
When KVM gets the fault, it sets U=0 and W=1 in the shadow PTE and
restarts execution.  This will still cause a user write to fault, while
supervisor writes will succeed.  User reads will fault spuriously now,
and KVM will then flip U and W again in the SPTE (U=1, W=0).  User reads
will be enabled and supervisor writes disabled, going back to the
originary situation where supervisor writes fault spuriously.

When SMEP is in effect, however, U=0 will enable kernel execution of
this page.  To avoid this, KVM also sets NX=1 in the shadow PTE together
with U=0.  If the guest has not enabled NX, the result is a continuous
stream of page faults due to the NX bit being reserved.

The fix is to force EFER.NX=1 even if the CPU is taking care of the EFER
switch.  (All machines with SMEP have the CPU_LOAD_IA32_EFER vm-entry
control, so they do not use user-return notifiers for EFER---if they did,
EFER.NX would be forced to the same value as the host).

There is another bug in the reserved bit check, which I've split to a
separate patch for easier application to stable kernels.

Cc: stable@vger.kernel.org
Cc: Andy Lutomirski <luto@amacapital.net>
Reviewed-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Fixes: f6577a5fa1
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-10 11:26:07 +01:00
Ramesh Shanmugasundaram e481ab23c5 can: rcar_can: Add r8a7795 support
Added r8a7795 SoC support.

Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2016-03-10 10:30:21 +01:00
Linus Walleij fae9816446 gpio: uapi: use 0xB4 as ioctl() major
The previous 'o' is in conflict and not very orderly assigned.
We want to select an ioctl() major that does not conflict with
the existining ones.

Add the new reserved major (0xB4) to Documentation/ioctl/ioctl-number.txt

Fixes: 3c702e9987 ("gpio: add a userspace chardev ABI for GPIOs")
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-10 16:02:52 +07:00
Shubhrajyoti Datta 82b3aea65f spi: xilinx: Add devicetree binding for spi-xilinx
Add a binding document for the spi/spi-xilinx

Signed-off-by: Shubhrajyoti Datta <shubhraj@xilinx.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-10 10:31:21 +07:00
Linus Walleij cc998d8bc7 Linux 4.5-rc5
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Merge tag 'v4.5-rc5' into devel

Linux 4.5-rc5
2016-03-10 09:29:25 +07:00
Masanari Iida 0d6f3ebf9e Doc: nfs: Fix typos in Documentation/filesystems/nfs
This patch fix spelling typos found in Documentation/filesystems/nfs

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-03-09 16:13:04 -07:00
Colin Ian King b2ca5dae31 ACPI: Add acpi_force_32bit_fadt_addr option to force 32 bit FADT addresses
Some HP laptops seem to have invalid 64 bit FADT X_PM* addresses
which are causing various boot issues.  In these cases, it would
be useful to force ACPI to use the valid legacy 32 bit equivalent
PM addresses.  Add a acpi_force_32bit_fadt_addr to set the ACPICA
acpi_gbl_use32_bit_fadt_addresses to TRUE to force this override.

Link: https://bugs.launchpad.net/bugs/1529381
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-03-09 23:46:07 +01:00
Zhiyi Sun 4db1fa6648 Documentation: kselftest: Remove duplicate word
Remove duplicate word "for" in kselftest.txt.

Signed-off-by: Zhiyi Sun <zhiyisun@msn.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-03-09 15:33:38 -07:00
Javi Merino c22d6bef7c doc: fix grammar
Some minor typos:

  - make is unbindable -> make it unbindable
  - a underlying -> an underlying
  - different version -> different versions

Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-03-09 15:33:06 -07:00
Philippe Loctaux ce65508182 Documentation: Howto: Fixed subtitles style
Fixed subtitles style, aligned them with their header.

Signed-off-by: Philippe Loctaux <phil@philippeloctaux.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-03-09 15:30:03 -07:00
Olof Johansson 1dea581f86 ARM: OMAP2+: critical DRA7xx fix for v4.5-rc
Force the DRA7xx Ethernet internal clock source to stay enabled
 per TI erratum i877:
 
 http://www.ti.com/lit/er/sprz429h/sprz429h.pdf
 
 Otherwise, if the Ethernet internal clock source is disabled, the
 chip will age prematurely, and the RGMII I/O timing will soon
 fail to meet the delay time and skew specifications for 1000Mbps
 Ethernet.
 
 This fix should go in as soon as possible.
 
 Basic build, boot, and PM test results are available here:
 
 http://www.pwsan.com/omap/testlogs/omap-critical-fixes-for-v4.5-rc/20160307014209/
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Merge tag 'for-v4.5-rc/omap-critical-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes

ARM: OMAP2+: critical DRA7xx fix for v4.5-rc

Force the DRA7xx Ethernet internal clock source to stay enabled
per TI erratum i877:

http://www.ti.com/lit/er/sprz429h/sprz429h.pdf

Otherwise, if the Ethernet internal clock source is disabled, the
chip will age prematurely, and the RGMII I/O timing will soon
fail to meet the delay time and skew specifications for 1000Mbps
Ethernet.

This fix should go in as soon as possible.

Basic build, boot, and PM test results are available here:

http://www.pwsan.com/omap/testlogs/omap-critical-fixes-for-v4.5-rc/20160307014209/

* tag 'for-v4.5-rc/omap-critical-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending:
  ARM: dts: dra7: do not gate cpsw clock due to errata i877
  ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property

Signed-off-by: Olof Johansson <olof@lixom.net>
2016-03-09 14:15:31 -08:00
Tom Herbert 10016594f4 kcm: Add description in Documentation
Add kcm.txt to desribe KCM and interfaces.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-09 16:36:16 -05:00
Laxman Dewangan 61f846f373 thermal: doc: Add details of devm_thermal_zone_of_sensor_{register,unregister}
Add details of the interface devm_thermal_zone_of_sensor_register()
and devm_thermal_zone_of_sensor_unregister() in the
<thermal/sysfs-api.txt>.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-03-09 10:51:41 -08:00
Laxman Dewangan 3a7fd9c737 thermal: doc: Add details of thermal_zone_of_sensor_{register,unregister}
Add details of the interface thermal_zone_of_sensor_register() and
thermal_zone_of_sensor_unregister() in the thermal/sysfs-api.txt.

The details describes the functionality and parameter which
are passed to these interfaces.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-03-09 10:31:01 -08:00
Christophe Lombard 594ff7d067 cxl: Support to flash a new image on the adapter from a guest
The new flash.c file contains the logic to flash a new image on the
adapter, through a hcall. It is an iterative process, with chunks of
data of 1M at a time. There are also 2 phases: write and verify. The
flash operation itself is driven from a user-land tool.
Once flashing is successful, an rtas call is made to update the device
tree with the new properties values for the adapter and the AFU(s)

Add a new char device for the adapter, so that the flash tool can
access the card, even if there is no valid AFU on it.

Co-authored-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-03-09 23:39:56 +11:00
Christophe Lombard 4752876c71 cxl: sysfs support for guests
Filter out a few adapter parameters which don't make sense in a guest.
Document the changes.

Co-authored-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-03-09 23:39:40 +11:00
Yendapally Reddy Dhananjaya Reddy d2d13ed013 pinctrl: Broadcom Northstar2 pinctrl device tree bindings
Device tree binding documentation for Broadcom NS2 IOMUX

Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-09 17:57:38 +07:00
Paolo Bonzini ab92f30875 KVM/ARM updates for 4.6
- VHE support so that we can run the kernel at EL2 on ARMv8.1 systems
 - PMU support for guests
 - 32bit world switch rewritten in C
 - Various optimizations to the vgic save/restore code
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Merge tag 'kvm-arm-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/ARM updates for 4.6

- VHE support so that we can run the kernel at EL2 on ARMv8.1 systems
- PMU support for guests
- 32bit world switch rewritten in C
- Various optimizations to the vgic save/restore code

Conflicts:
	include/uapi/linux/kvm.h
2016-03-09 11:50:42 +01:00
Linus Walleij 0bae2f1732 Merge branch 'ib-mfd-regulator-gpio-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into devel 2016-03-09 17:40:37 +07:00
Linus Walleij 82b0a434b4 irqchip/gic/realview: Support more RealView DCC variants
In the add-on file for the GIC dealing with the RealView family
we currently only handle the PB11MPCore, let's extend this to
manage the RealView EB ARM11MPCore as well. The Revision B of the
ARM11MPCore core tile is a bit special and needs special handling
as it moves a system control register around at random.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: devicetree@vger.kernel.org
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-03-09 09:38:05 +00:00
Antoine Tenart a13690297c Documentation/bindings: Document the Alpine MSIX driver
Following the addition of the Alpine MSIX driver, this patch adds the
corresponding bindings documentation.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Tsahee Zidenberg <tsahee@annapurnalabs.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-03-09 09:37:53 +00:00
Lee Jones bab070620e Merge branches 'ib-mfd-clk-4.6', 'ib-mfd-input-iio-4.6', 'ib-mfd-regulator-4.6' and 'ib-mfd-regulator-gpio-4.6' into ibs-for-mfd-merged 2016-03-09 12:56:47 +07:00
Phil Reid 28c5a41e4a gpio: mcp23s08: Add support for mcp23s18
This patch adds support for the mcp23s18 which is very similar to
the mcp23s17. A couple of control bits are not the same.
Notable IOCON_HAEN (s17 only) & IOCON_INTCC. Which can be ignored.

Patch changes the following:
- Add mcp23s18 types.
- Always set mirror bit if the dts defines mcp23s18. regardless of type.
  Mirror bit is ignored on 8 bit devices anyway.
- In mcp23s08_probe use chip.ngpio instead of logic based on type
  to determine number of gpio lins to increment by. This is set
  appropiately by the call to mcp23s08_probe_one.
- Add mcp23s18 to device tree documentation.
- Remove statement that irqs don't work for spi. They do.
  Tested with mcp23s18.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-09 09:50:37 +07:00
Marek Vasut df2e90551b dt-bindings: gpio: altera: Fix altr,interrupt-type property
The altr,interrupt-trigger property is not used by the driver.
Instead, altr,interrupt-type is used by the driver and the driver
does not probe if this property is not specified. Therefore, it
is expected that there are no users of the -trigger property in
the wild and that this is a typo in the documentation for the
altera-pio controller. This patch fixes the typo.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tien Hock Loh <thloh@altera.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-09 09:47:42 +07:00
Adam Baker 630300d5fc hwmon: Create an NSA320 hardware monitoring driver
Create a driver to support the hardware monitoring chip present in
the Zyxel NSA320 and some of the other Zyxel NAS devices.

The driver reads fan speed and temperature from a suitably
pre-programmed MCU on the device.

Signed-off-by: Adam Baker <linux@baker-net.org.uk>
[groeck: Dropped .owner field initialization]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-08 18:40:49 -08:00
Javier Martinez Canillas 7bc40ddfe8 thermal: exynos: List vtmu-supply as optional property in DT binding
The Exynos Thermal Management Unit binding says that the vtmu-supply
is optional but is listed in the required properties section. Add an
optional properties section and move the regulator property there.

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-03-08 14:20:21 -08:00
Krzysztof Kozlowski fa7b29e8bf thermal: exynos: Document number of supported trip-points
Document the number of configurable temperature thresholds (for
trip-points in interrupt-driven mode).

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-03-08 14:06:33 -08:00
Krzysztof Kozlowski a41e939b27 thermal: exynos: Document compatible for Exynos5433 TMU
Commit 488c7455d7 ("thermal: exynos: Add the support for Exynos5433
TMU") added new compatible but forgot to update documentation.

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-03-08 14:04:21 -08:00
Bharat Kumar Gogada e5d4b2006c PCI: xilinx: Update Zynq binding with Microblaze node
Update Zynq PCI binding documentation with Microblaze node.

[bhelgaas: fix "microbalze_0_intc" typo]
Signed-off-by: Bharat Kumar Gogada <bharatku@xilinx.com>
Signed-off-by: Ravi Kiran Gummaluri <rgummal@xilinx.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
2016-03-08 14:25:49 -06:00
Stefan Agner fa6e3ca274 Input: ad7879 - add device tree support
Add device tree support for the I2C and SPI variant of AD7879(-1).
This allows to specify the touchscreen controller as a I2C client
node or SPI slave device. Most of the options available in platform
data are also available as device tree properties, the only exception
being GPIO capabilities, which can not be activated through device
tree currently.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-08 10:51:18 -08:00
David S. Miller 810813c47a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Several cases of overlapping changes, as well as one instance
(vxlan) of a bug fix in 'net' overlapping with code movement
in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-08 12:34:12 -05:00
Lionel Landwerlin 5488dc16fd drm: introduce pipe color correction properties
Patch based on a previous series by Shashank Sharma.

This introduces optional properties to enable color correction at the
pipe level. It relies on 3 transformations applied to every pixels
displayed. First a lookup into a degamma table, then a multiplication
of the rgb components by a 3x3 matrix and finally another lookup into
a gamma table.

The following properties can be added to a pipe :
  - DEGAMMA_LUT : blob containing degamma LUT
  - DEGAMMA_LUT_SIZE : number of elements in DEGAMMA_LUT
  - CTM : transformation matrix applied after the degamma LUT
  - GAMMA_LUT : blob containing gamma LUT
  - GAMMA_LUT_SIZE : number of elements in GAMMA_LUT

DEGAMMA_LUT_SIZE and GAMMA_LUT_SIZE are read only properties, set by
the driver to tell userspace applications what sizes should be the
lookup tables in DEGAMMA_LUT and GAMMA_LUT.

A helper is also provided so legacy gamma correction is redirected
through these new properties.

v2: Register LUT size properties as range

v3: Fix round in drm_color_lut_get_value() helper
    More docs on how degamma/gamma properties are used

v4: Update contributors

v5: Rename CTM_MATRIX property to CTM (Doh!)
    Add legacy gamma_set atomic helper
    Describe CTM/LUT acronyms in the kernel doc

v6: Fix missing blob unref in drm_atomic_helper_crtc_reset

Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Kumar, Kiran S <kiran.s.kumar@intel.com>
Signed-off-by: Kausal Malladi <kausalmalladi@gmail.com>
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Acked-by: Rob Bradford <robert.bradford@intel.com>
[danvet: CrOS maintainers are also happy with the userspacde side:
https://codereview.chromium.org/1182063002/ ]
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1456506302-640-4-git-send-email-lionel.g.landwerlin@intel.com
2016-03-08 13:57:32 +01:00
Adam Baker 8d80124319 hwmon: Define binding for the nsa320-hwmon driver
Define a binding for the hardware monitoring chip present in the Zyxel
NSA-320 and some of the other Zyxel NAS devices.

Signed-off-by: Adam Baker <linux@baker-net.org.uk>
Acked-by: Rob Herring <robh@kernel.org>
[groeck: Fixed whitespace error]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-08 03:59:10 -08:00
Ingo Molnar fe36d8912c Merge branch 'linus' into irq/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-08 12:26:07 +01:00
Ingo Molnar a1a8ba2d4a Merge branch 'linus' into ras/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-08 11:48:00 +01:00
Takashi Iwai 56d94d7039 Merge branch 'topic/hda' into for-next 2016-03-08 10:49:43 +01:00
Linus Walleij 016bf20829 Merge branch 'devm-gpiochip-add-data' into devel 2016-03-08 14:41:41 +07:00
Wilson Ding 30530791a7 serial: mvebu-uart: initial support for Armada-3700 serial port
Armada-3700's uart is a simple serial port, which doesn't
support. Configuring the modem control lines. The uart port has a 32
bytes Tx FIFO and a 64 bytes Rx FIFO

The uart driver implements the uart core operations. It also support the
system (early) console based on Armada-3700's serial port.

Known Issue:

The uart driver currently doesn't support clock programming, which means
the baud-rate stays with the default value configured by the bootloader
at boot time

[gregory.clement@free-electrons.com: Rewrite many part which are too long
to enumerate]

Signed-off-by: Wilson Ding <dingwei@marvell.com>
Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07 16:11:14 -08:00
Konstantin Khlebnikov 8b253b07e9 TTY, devpts: document pty count limiting
Logic has been changed in kernel 3.4 by commit e9aba5158a
("tty: rework pty count limiting") but still not documented.

Sysctl kernel.pty.max works as global limit, kernel.pty.reserve ptys
are reserved for initial devpts instance (mounted without "newinstance").
Per-instance limit also could be set by mount option "max=%d".

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07 16:11:14 -08:00
Miodrag Dinic 9b883eea26 drivers: tty: goldfish: Add device tree bindings
Enable support for registering this device using the device tree.
Device tree node example for registering Goldfish TTY device :

goldfish_tty@1f004000 {
    interrupts = <0xc>;
    reg = <0x1f004000 0x1000>;
    compatible = "google,goldfish-tty";
};

Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Jin Qian <jinqian@android.com>
Signed-off-by: Alan <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07 16:11:14 -08:00
Yao Yuan 471c2aa6fa Documentation: fsl-quadspi: Add optional properties
Add optional properties for QSPI:
big-endian
if the register is big endian on this platform.

Signed-off-by: Yuan Yao <yao.yuan@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Han xu <han.xu@nxp.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2016-03-07 12:32:20 -08:00
Yao Yuan 2458fb258b Documentation: fsl-quadspi: Add fsl, ls2080a-qspi compatible string
new compatible string: "fsl,ls2080a-qspi".

Signed-off-by: Yuan Yao <yao.yuan@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Han xu <han.xu@nxp.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2016-03-07 12:32:20 -08:00
Andreas Färber 3c7bccccd3 Documentation: devicetree: amlogic: Document Tronsmart Vega S95 boards
Use "tronsmart,vega-s95" as well as
    "tronsmart,vega-s95-pro",
    "tronsmart,vega-s95-meta" and
    "tronsmart,vega-s95-telos" compatible strings.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
2016-03-07 11:12:40 +01:00
Andreas Färber 985b81817c Documentation: devicetree: amlogic: Document Meson GXBaby
Use "amlogic,meson-gxbb" compatible string.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
2016-03-07 11:12:30 +01:00
Matthias Brugger 1cd6709175 devicetree: bindings: Add vendor prefix for Tronsmart
Tronsmart is a China based company building consumer electronic
devices.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
2016-03-07 11:11:52 +01:00
Lokesh Vutla 2e18f5a1bc ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property
Introduce a dt property, ti,no-idle, that prevents an IP to idle at any
point. This is to handle Errata i877, which tells that GMAC clocks
cannot be disabled.

Acked-by: Roger Quadros <rogerq@ti.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-03-07 01:41:21 -07:00
Ingo Molnar ec87e1cf7d Linux 4.5-rc7
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Merge tag 'v4.5-rc7' into x86/asm, to pick up SMAP fix

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-07 09:27:30 +01:00
Kuninori Morimoto 74e26809fb ASoC: rsrc-card: tidyup convert-channels explain
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-07 14:20:01 +07:00
Joachim Eastwood 0762ddd73a pinctrl: lpc1850-scu: document nxp,gpio-pin-interrupt
Update devicetree documention for lpc1850-scu with the new
nxp,gpio-pin-interrupt property.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-07 10:48:10 +07:00
Bernhard Walle 962d8cdc31 net: fec: Rename "phy-reset-active-low" property
is actually "active high". Thanks for Troy Kisky for pointing
that out.

Since the patch is in linux-next, this patch is incremental and doesn't
replace the original patch.

Signed-off-by: Bernhard Walle <bernhard@bwalle.de>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-06 22:47:16 -05:00
Christoph Hellwig 1ae1602de0 configfs: switch ->default groups to a linked list
Replace the current NULL-terminated array of default groups with a linked
list.  This gets rid of lots of nasty code to size and/or dynamically
allocate the array.

While we're at it also provide a conveniant helper to remove the default
groups.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Felipe Balbi <balbi@kernel.org>		[drivers/usb/gadget]
Acked-by: Joel Becker <jlbec@evilplan.org>
Acked-by: Nicholas Bellinger <nab@linux-iscsi.org>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
2016-03-06 16:11:24 +01:00
Kalle Valo 89ef41bfaa Merge 'net-next/master'
Needed by the upcoming merge of iwlwifi-next-for-kalle-2016-03-02 tag.
2016-03-06 14:57:44 +02:00
Kalle Valo 89916cc90a Merge ath-next from ath.git
ath.git patches for 4.6. Major changes:

ath10k

* dt: add bindings for ipq4019 wifi block
* start adding support for qca4019 chip

ath9k

* add device ID for Toshiba WLM-20U2/GN-1080
* allow more than one interface on DFS channels
2016-03-06 14:41:51 +02:00
Arnd Bergmann a921e9bd4e isdn: i4l: move active-isdn drivers to staging
The icn, act2000 and pcbit drivers are all for very old hardware,
and it is highly unlikely that anyone is actually still using them
on modern kernels, if at all.

All three drivers apparently are for hardware that predates PCI
being the common connector, as they are ISA-only and active
PCI ISDN cards were widely available in the 1990s.

Looking through the git logs, it I cannot find any indication of a
patch to any of these drivers that has been tested on real hardware,
only cleanups or global API changes.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Karsten Keil <isdn@linux-pingi.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-05 15:00:38 -08:00
Linus Torvalds ee8f3955c0 media fixes for v4.5-rc7
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Merge tag 'media/v4.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
  - some last time changes before we stablize the new entity function
    integer numbers at uAPI
  - probe: fix erroneous return value on i2c/adp1653 driver
  - fix tx 5v detect regression on adv7604 driver
  - fix missing unlock on error in vpfe_prepare_pipeline() on
    davinci_vpfe driver

* tag 'media/v4.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] media: Sanitise the reserved fields of the G_TOPOLOGY IOCTL arguments
  [media] media.h: postpone connectors entities
  [media] media.h: use hex values for range offsets,  move connectors base up.
  [media] adv7604: fix tx 5v detect regression
  [media] media.h: get rid of MEDIA_ENT_F_CONN_TEST
  [media] [for,v4.5] media.h: increase the spacing between function ranges
  [media] media: i2c/adp1653: probe: fix erroneous return value
  [media] media: davinci_vpfe: fix missing unlock on error in vpfe_prepare_pipeline()
2016-03-05 12:32:34 -08:00
Greg Kroah-Hartman a567500598 phy: for 4.6
*) Add driver for rockchip Display Port PHY
 *) Add driver for the Rockchip SoC internal eMMC PHY
 *) Add usb-uart functionality in rockchip-usb
 *) cleanup rcar usb2 PHY driver
 *) Fix for randconfig error
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Merge tag 'phy-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-testing

Kishon writes:

phy: for 4.6

*) Add driver for rockchip Display Port PHY
*) Add driver for the Rockchip SoC internal eMMC PHY
*) Add usb-uart functionality in rockchip-usb
*) cleanup rcar usb2 PHY driver
*) Fix for randconfig error

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-03-05 12:22:41 -08:00
Peter Chen 69bec72598 USB: core: let USB device know device node
Although most of USB devices are hot-plug's, there are still some devices
are hard wired on the board, eg, for HSIC and SSIC interface USB devices.
If these kinds of USB devices are multiple functions, and they can supply
other interfaces like i2c, gpios for other devices, we may need to
describe these at device tree.

In this commit, it uses "reg" in dts as physical port number to match
the phyiscal port number decided by USB core, if they are the same,
then the device node is for the device we are creating for USB core.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-05 12:05:01 -08:00
Reilly Grant d883f52e1f usb: devio: Add ioctl to disallow detaching kernel USB drivers.
The new USBDEVFS_DROP_PRIVILEGES ioctl allows a process to voluntarily
relinquish the ability to issue other ioctls that may interfere with
other processes and drivers that have claimed an interface on the
device.

This commit also includes a simple utility to be able to test the
ioctl, located at Documentation/usb/usbdevfs-drop-permissions.c

Example (with qemu-kvm's input device):

    $ lsusb
    ...
    Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd

    $ usb-devices
    ...
    C:  #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=02 Driver=usbhid

    $ sudo ./usbdevfs-drop-permissions /dev/bus/usb/001/002
    OK: privileges dropped!
    Available options:
    [0] Exit now
    [1] Reset device. Should fail if device is in use
    [2] Claim 4 interfaces. Should succeed where not in use
    [3] Narrow interface permission mask
    Which option shall I run?: 1
    ERROR: USBDEVFS_RESET failed! (1 - Operation not permitted)
    Which test shall I run next?: 2
    ERROR claiming if 0 (1 - Operation not permitted)
    ERROR claiming if 1 (1 - Operation not permitted)
    ERROR claiming if 2 (1 - Operation not permitted)
    ERROR claiming if 3 (1 - Operation not permitted)
    Which test shall I run next?: 0

After unbinding usbhid:

    $ usb-devices
    ...
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=02 Driver=(none)

    $ sudo ./usbdevfs-drop-permissions /dev/bus/usb/001/002
    ...
    Which option shall I run?: 2
    OK: claimed if 0
    ERROR claiming if 1 (1 - Operation not permitted)
    ERROR claiming if 2 (1 - Operation not permitted)
    ERROR claiming if 3 (1 - Operation not permitted)
    Which test shall I run next?: 1
    OK: USBDEVFS_RESET succeeded
    Which test shall I run next?: 0

After unbinding usbhid and restricting the mask:

    $ sudo ./usbdevfs-drop-permissions /dev/bus/usb/001/002
    ...
    Which option shall I run?: 3
    Insert new mask: 0
    OK: privileges dropped!
    Which test shall I run next?: 2
    ERROR claiming if 0 (1 - Operation not permitted)
    ERROR claiming if 1 (1 - Operation not permitted)
    ERROR claiming if 2 (1 - Operation not permitted)
    ERROR claiming if 3 (1 - Operation not permitted)

Signed-off-by: Reilly Grant <reillyg@chromium.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Emilio López <emilio.lopez@collabora.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-05 12:05:01 -08:00
Guenter Roeck 709066acdd hwmon: (adm1275) Add support for ADM1278
ADM1278 is mostly compatible to other chips of the same series.
Besides the usual difference in coefficients, it supports
a temperature sensor, and it can measure both input and output
voltage at the same time.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-05 06:36:03 -08:00
Joseph McNally 54ce3a0d80 hwmon: (ntc_thermistor) Add support for ncpXXxh103
This patch adds support for the Murata NCP15XH103 thermistor series.

Signed-off-by: Joseph McNally <jmcna06@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-05 06:25:34 -08:00
Masanari Iida 92417dad64 Doc: hwmon: Fix typo "montoring" in hwmon
This patch fix typos found in files within Documentation/hwmon.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-05 06:25:34 -08:00
Sanchayan Maity 0b452ccca6 ARM: dts: Change iio_hwmon nodes to use hypen in node names
Change iio_hwmon nodes to use hypen in node names instead of
underscore.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-05 06:25:34 -08:00
Mike Looijmans df92270357 hwmon: Add LTC2990 sensor driver
This adds support for the Linear Technology LTC2990  I2C System Monitor.
The LTC2990 supports a combination of voltage, current and temperature
monitoring. This driver currently only supports reading two currents
by measuring two differential voltages across series resistors, in
addition to the Vcc supply voltage and internal temperature.

This is sufficient to support the Topic Miami SOM which uses this chip
to monitor the currents flowing into the FPGA and the CPU parts.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2016-03-05 06:25:34 -08:00
Mark Brown 781aab8457 Merge remote-tracking branch 'regmap/topic/mmio' into regmap-next 2016-03-05 21:30:29 +09:00
Heiner Kallweit 02212001c9 [media] media: rc: nuvoton: switch attribute wakeup_data to text
Switch attribute wakeup_data from binary to a text attribute.
This makes it easier to handle in userspace and allows to
use the output of tools like mode2 almost as is to set a
wakeup sequence.
Changing to a text format and values in microseconds also
makes the userspace interface independent of the setting of
SAMPLE_PERIOD in the driver.

In addition document the new sysfs attribute in
Documentation/ABI/testing/sysfs-class-rc-nuvoton.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-05 08:22:03 -03:00
Igal Liberman ea6370d23c powerpc/fsl: Update fman dt binding with pcs-phy and tbi-phy
The FMan contains internal PHY devices used for SGMII connections
to external PHYs. When these PHYs are in use a reference is needed
for both the external PHY and the internal one. For the external
PHY phy-handle provides the reference. For the internal PHY a new
handle is required.
In dTSEC, the internal PHY is a TBI (Ten Bit Interface) PHY,
the handle used will be tbi-handle.
In mEMAC, the internal PHY is a PCS (Physical Coding Sublayer) PHY,
the handle used will be pcsphy-handle.

Signed-off-by: Igal Liberman <igal.liberman@freescale.com>
Signed-off-by: Scott Wood <oss@buserror.net>
2016-03-05 00:01:14 -06:00
Wang Dongsheng d64716caf7 Documentation: dt: binding: fsl: add devicetree binding for describing RCPM
RCPM is the Run Control and Power Management module performs all
device-level tasks associated with device run control and power
management.

Add this for freescale powerpc platform and layerscape platform.

Signed-off-by: Chenhui Zhao <chenhui.zhao@freescale.com>
Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
[scottwood: s/pointer/phandle and "disabled" status from example]
Signed-off-by: Scott Wood <oss@buserror.net>
2016-03-04 23:40:43 -06:00
Florian Vaussard c9146fae4e ASoC: ads117x: Add bindings documentation for TI ADS117x ADC
Currently the binding is only made of the compatible string.

Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-05 14:02:13 +09:00
Kuninori Morimoto f90432fc6e ASoC: rsrc-card: add convert channels support
Renesas sound device has CTU (= Channel Transfer Unit), and
sound card needs its support.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-05 13:27:27 +09:00
Sugar Zhang ab8773943a ASoC: rockchip: add bindings for spdif controller
this patch add compatible for rk3366/rk3368/rk3399 spdif,
these three spdifs share the same type.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-05 12:59:06 +09:00
Greg Kroah-Hartman 3d0712deb0 usb changes for v4.6 merge window
This is almost all under drivers/usb/dwc2/. Many
 changes to the host side implementation of dwc2 have
 been done by Douglas Anderson.
 
 We also have USB 3.1 support added to the Gadget
 Framework and, because of that work, dwc3 got
 support to Synopsys new DWC_usb31 IP core.
 
 Other than these 2 important series, we also have
 the usual collection of non-critical fixes,
 Documentation updates, and minor changes all over
 the place.
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Merge tag 'usb-for-v4.6' of http://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb changes for v4.6 merge window

This is almost all under drivers/usb/dwc2/. Many
changes to the host side implementation of dwc2 have
been done by Douglas Anderson.

We also have USB 3.1 support added to the Gadget
Framework and, because of that work, dwc3 got
support to Synopsys new DWC_usb31 IP core.

Other than these 2 important series, we also have
the usual collection of non-critical fixes,
Documentation updates, and minor changes all over
the place.
2016-03-04 18:43:07 -08:00
Russell King 1b3bf84797 Merge branches 'amba', 'fixes', 'misc' and 'tauros2' into for-next 2016-03-04 23:36:02 +00:00
Joachim Eastwood 782fa5201a doc: dt: add documentation for lpc1850-creg-clk driver
Add DT binding documentation for lpc1850-creg-clk driver.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-04 12:53:20 -08:00
Dmitry Torokhov 52cdce8adb Merge branch 'rotary-encoder' into next
Bring in updates to roraty encoder driver switching it away from legacy
platform data and over to generic device properties and adding support
for encoders using more than 2 GPIOs.
2016-03-04 11:32:40 -08:00
Fu Wei 2fc94b5f22 Documentation: add sbsa-gwdt driver documentation
The sbsa-gwdt.txt documentation in devicetree/bindings/watchdog is for
introducing SBSA(Server Base System Architecture) Generic Watchdog
device node info into FDT.

Also add sbsa-gwdt introduction in watchdog-parameters.txt

Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Fu Wei <fu.wei@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-03-04 20:23:14 +01:00
Antti Seppälä 6c0c0951bb usb: dwc2: Add support for Lantiq ARX and XRX SoCs
Add support for Lantiq ARX and XRX SoC families to the dwc2 driver.

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-03-04 15:14:47 +02:00
Li Jun dfbae33095 Documentation: usb: chipidea: Update test procedure for HNP polling
Update HNP test procedure as HNP polling is supported.

Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-03-04 15:14:37 +02:00
Haosdent Huang 88bcf65e66 cgroup: remove stale item in cgroup-v1 document INDEX file.
Signed-off-by: Haosdent Huang <haosdent@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2016-03-04 08:01:47 -05:00
Radim Krčmář 107d44a2c5 KVM: document KVM_REINJECT_CONTROL ioctl
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-04 09:30:29 +01:00
Leo Yan 1cb17866f0 dt-bindings: mailbox: Document Hi6220 mailbox driver
Document DT binding for Hisilicon Hi6220 mailbox driver.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2016-03-04 12:32:19 +05:30
Sudeep Holla c428013783 mailbox: mailbox-test: fix the compatible string
Underscores are usually forbidden in the compatible strings. So lets
remove it before the first users of this is seen.

Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2016-03-04 12:32:18 +05:30
Christian Lamparter a6d6fc2b67 usbip: move usbip_protocol.txt to Documentation
The usbip_protocol.txt, a document which describes usbip's
inner workings is currently located in the projects source
directory (drivers/usb/usbip/...). This patch moves it to
Documentation/usb.

This discussion was brought up by Guy Harris [0] during the
review of the USBIP dissector I wrote. For anyone interested:
support is available with the latest wireshark master/dev tree.
Simply select a packet from the usbip's tcp-stream you are
intrested on and select the USBIP as the protocol in the
"Decode As" dialog box [1].

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

[0] <https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12127#c2>
[1] <https://www.wireshark.org/docs/wsug_html_chunked/ChCustProtocolDissectionSection.html#ChAdvDecodeAs>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03 19:44:06 -08:00
Simon Horman f1bbdc3b04 usb: host: xhci-plat: add R-Car Gen2 and Gen3 fallback compatibility strings
Add fallback compatibility strings for R-Car Gen2 and Gen3.

This is in keeping with the fallback scheme being adopted wherever
appropriate for drivers for Renesas SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03 19:44:06 -08:00
Dave Airlie 912b330c20 Merge branch 'msm-next' of git://people.freedesktop.org/~robclark/linux into drm-next
Big ticket items are hdmi support for 8996 (aka snapdragon 820), and
adreno 430 support.  Also one more small uapi addition to support
timestamp queries.

* 'msm-next' of git://people.freedesktop.org/~robclark/linux: (29 commits)
  drm/msm: rename hdmi symbols
  drm/msm/adreno: remove duplicate adreno_hw_init() call
  drm/msm: add timestamp param
  drm/msm: fix small typo
  drm/msm: grab struct_mutex after allocating submit
  drm/msm: reject submit ioctl if no gpu
  drm/msm/adreno: print details in case of a protect fault interrupt
  drm/msm/adreno: get CP_RPTR from register instead of shadow memory
  drm/msm/adreno: add adreno430 power control
  drm/msm/adreno: support for adreno 430.
  drm/msm: update generated headers
  drm/msm/dsi: fix definition of msm_dsi_pll_28nm_8960_init()
  drm/msm/dsi: Parse DSI lanes via DT
  drm/msm/dsi: Drop VDD regulator for MSM8916
  drm/msm/dsi: Remove incorrect warning on host attach
  drm/msm: Free fb helper resources in msm_unload
  drm/msm/mdp: Detach iommu in mdp4_destroy
  drm/msm: make iommu port names const'ier
  drm/msm/mdp: Use atomic helper to set crtc property
  dt-bindings: msm/hdmi: Add HDMI PHY bindings
  ...
2016-03-04 13:37:39 +10:00