Commit Graph

1579 Commits

Author SHA1 Message Date
Linus Torvalds 0ce5c79f38 power supply and reset changes for the v4.14 series
* New chip/feature support
  - bq27xxx: support updating battery config from DT
  - bq24190: support loading battery charge info from DT
  - LTC2941: add LTC2942/LTC2944 support
  - max17042: add ACPI support
  - max1721x: new driver
 * Misc
  - Move bq27xxx w1 driver from w1 into power-supply subsystem
  - Introduce power_supply_set_input_current_limit_from_supplier
  - constify stuff
  - some minor fixes
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Merge tag 'for-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset changes from Sebastian Reichel:
 "New chip/feature support:
   - bq27xxx: support updating battery config from DT
   - bq24190: support loading battery charge info from DT
   - LTC2941: add LTC2942/LTC2944 support
   - max17042: add ACPI support
   - max1721x: new driver

  Misc:
   - Move bq27xxx w1 driver from w1 into power-supply subsystem
   - Introduce power_supply_set_input_current_limit_from_supplier
   - constify stuff
   - some minor fixes"

* tag 'for-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (39 commits)
  power: supply: bq27xxx: enable writing capacity values for bq27421
  power: supply: bq24190_charger: Get input_current_limit from our supplier
  power: supply: bq24190_charger: Export 5V boost converter as regulator
  power: supply: bq24190_charger: Add power_supply_battery_info support
  power: supply: bq24190_charger: Add property system-minimum-microvolt
  power: supply: bq24190_charger: Enable devicetree config
  dt-bindings: power: supply: Add docs for TI BQ24190 battery charger
  power: supply: bq27xxx: Remove duplicate chip data arrays
  power: supply: bq27xxx: Enable data memory update for certain chips
  power: supply: bq27xxx: Add chip IDs for previously shadowed chips
  power: supply: bq27xxx: Create single chip data table
  power: supply: bq24190_charger: Add ti,bq24192i to devicetree table
  power: supply: bq24190_charger: Add input_current_limit property
  power: supply: Add power_supply_set_input_current_limit_from_supplier helper
  power: supply: max17042_battery: Fix compiler warning
  power: supply: core: Delete two error messages for a failed memory allocation in power_supply_check_supplies()
  power: supply: make device_attribute const
  power: supply: max17042_battery: Fix ACPI interrupt issues
  power: supply: max17042_battery: Add support for ACPI enumeration
  power: supply: lp8788: Make several arrays static const * const
  ...
2017-09-09 14:44:39 -07:00
Linus Torvalds 968c61f7da - New Drivers
- RK805 Power Management IC (PMIC)
    - ROHM BD9571MWV-M MFD Power Management IC (PMIC)
    - Texas Instruments TPS68470 Power Management IC (PMIC) & LEDs
 
  - New Device Support
    - Add support for HiSilicon Hi6421v530 to hi6421-pmic-core
    - Add support for X-Powers AXP806 to axp20x
    - Add support for X-Powers AXP813 to axp20x
    - Add support for Intel Sunrise Point LPSS to intel-lpss-pci
 
  - New Functionality
    - Amend API to provide register layout; atmel-smc
 
 - Fix-ups
    - DT re-work; omap, nokia
    - Header file location change {I2C => MFD}; dm355evm_msp, tps65010
    - Fix chip ID formatting issue(s); rk808
    - Optionally register touchscreen devices; da9052-core
    - Documentation improvements; twl-core
    - Constification; rtsx_pcr, ab8500-core, da9055-i2c, da9052-spi
    - Drop unnecessary static declaration; max8925-i2c
    - Kconfig changes (missing deps and remove module support)
    - Slim down oversized licence statement; hi6421-pmic-core
    - Use managed resources (devm_*); lp87565
    - Supply proper error checking/handling; t7l66xb
 
  - Bug Fixes
    - Fix counter duplication issue; da9052-core
    - Fix potential NULL deference issue; max8998
    - Leave SPI-NOR write-protection bit alone; lpc_ich
    - Ensure device is put into reset during suspend; intel-lpss
    - Correct register offset variable size; omap-usb-tll
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Merge tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers
   - RK805 Power Management IC (PMIC)
   - ROHM BD9571MWV-M MFD Power Management IC (PMIC)
   - Texas Instruments TPS68470 Power Management IC (PMIC) & LEDs

  New Device Support:
   - Add support for HiSilicon Hi6421v530 to hi6421-pmic-core
   - Add support for X-Powers AXP806 to axp20x
   - Add support for X-Powers AXP813 to axp20x
   - Add support for Intel Sunrise Point LPSS to intel-lpss-pci

  New Functionality:
   - Amend API to provide register layout; atmel-smc

  Fix-ups:
   - DT re-work; omap, nokia
   - Header file location change {I2C => MFD}; dm355evm_msp, tps65010
   - Fix chip ID formatting issue(s); rk808
   - Optionally register touchscreen devices; da9052-core
   - Documentation improvements; twl-core
   - Constification; rtsx_pcr, ab8500-core, da9055-i2c, da9052-spi
   - Drop unnecessary static declaration; max8925-i2c
   - Kconfig changes (missing deps and remove module support)
   - Slim down oversized licence statement; hi6421-pmic-core
   - Use managed resources (devm_*); lp87565
   - Supply proper error checking/handling; t7l66xb

  Bug Fixes:
   - Fix counter duplication issue; da9052-core
   - Fix potential NULL deference issue; max8998
   - Leave SPI-NOR write-protection bit alone; lpc_ich
   - Ensure device is put into reset during suspend; intel-lpss
   - Correct register offset variable size; omap-usb-tll"

* tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (61 commits)
  mfd: intel_soc_pmic: Differentiate between Bay and Cherry Trail CRC variants
  mfd: intel_soc_pmic: Export separate mfd-cell configs for BYT and CHT
  dt-bindings: mfd: Add bindings for ZII RAVE devices
  mfd: omap-usb-tll: Fix register offsets
  mfd: da9052: Constify spi_device_id
  mfd: intel-lpss: Put I2C and SPI controllers into reset state on suspend
  mfd: da9055: Constify i2c_device_id
  mfd: intel-lpss: Add missing PCI ID for Intel Sunrise Point LPSS devices
  mfd: t7l66xb: Handle return value of clk_prepare_enable
  mfd: Add ROHM BD9571MWV-M PMIC DT bindings
  mfd: intel_soc_pmic_chtwc: Turn Kconfig option into a bool
  mfd: lp87565: Convert to use devm_mfd_add_devices()
  mfd: Add support for TPS68470 device
  mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Haswell/Broadwell
  mfd: syscon: atmel-smc: Add helper to retrieve register layout
  mfd: axp20x: Use correct platform device ID for many PEK
  dt-bindings: mfd: axp20x: Introduce bindings for AXP813
  mfd: axp20x: Add support for AXP813 PMIC
  dt-bindings: mfd: axp20x: Add AXP806 to supported list of chips
  mfd: Add ROHM BD9571MWV-M MFD PMIC driver
  ...
2017-09-07 13:51:13 -07:00
Linus Torvalds 439644096c Power management updates for v4.14-rc1
- Drop the P-state selection algorithm based on a PID controller
    from intel_pstate and make it use the same P-state selection
    method (based on the CPU load) for all types of systems in the
    active mode (Rafael Wysocki, Srinivas Pandruvada).
 
  - Rework the cpufreq core and governors to make it possible to
    take cross-CPU utilization updates into account and modify the
    schedutil governor to actually do so (Viresh Kumar).
 
  - Clean up the handling of transition latency information in the
    cpufreq core and untangle it from the information on which drivers
    cannot do dynamic frequency switching (Viresh Kumar).
 
  - Add support for new SoCs (MT2701/MT7623 and MT7622) to the
    mediatek cpufreq driver and update its DT bindings (Sean Wang).
 
  - Modify the cpufreq dt-platdev driver to autimatically create
    cpufreq devices for the new (v2) Operating Performance Points
    (OPP) DT bindings and update its whitelist of supported systems
    (Viresh Kumar, Shubhrajyoti Datta, Marc Gonzalez, Khiem Nguyen,
    Finley Xiao).
 
  - Add support for Ux500 to the cpufreq-dt driver and drop the
    obsolete dbx500 cpufreq driver (Linus Walleij, Arnd Bergmann).
 
  - Add new SoC (R8A7795) support to the cpufreq rcar driver (Khiem
    Nguyen).
 
  - Fix and clean up assorted issues in the cpufreq drivers and core
    (Arvind Yadav, Christophe Jaillet, Colin Ian King, Gustavo Silva,
    Julia Lawall, Leonard Crestez, Rob Herring, Sudeep Holla).
 
  - Update the IO-wait boost handling in the schedutil governor to
    make it less aggressive (Joel Fernandes).
 
  - Rework system suspend diagnostics to make it print fewer messages
    to the kernel log by default, add a sysfs knob to allow more
    suspend-related messages to be printed and add Low Power S0 Idle
    constraints checks to the ACPI suspend-to-idle code (Rafael
    Wysocki, Srinivas Pandruvada).
 
  - Prefer suspend-to-idle over S3 on ACPI-based systems with the
    ACPI_FADT_LOW_POWER_S0 flag set and the Low Power Idle S0 _DSM
    interface present in the ACPI tables (Rafael Wysocki).
 
  - Update documentation related to system sleep and rename a number
    of items in the code to make it cleare that they are related to
    suspend-to-idle (Rafael Wysocki).
 
  - Export a variable allowing device drivers to check the target
    system sleep state from the core system suspend code (Florian
    Fainelli).
 
  - Clean up the cpuidle subsystem to handle the polling state on
    x86 in a more straightforward way and to use %pOF instead of
    full_name (Rafael Wysocki, Rob Herring).
 
  - Update the devfreq framework to fix and clean up a few minor
    issues (Chanwoo Choi, Rob Herring).
 
  - Extend diagnostics in the generic power domains (genpd) framework
    and clean it up slightly (Thara Gopinath, Rob Herring).
 
  - Fix and clean up a couple of issues in the operating performance
    points (OPP) framework (Viresh Kumar, Waldemar Rymarkiewicz).
 
  - Add support for RV1108 to the rockchip-io Adaptive Voltage Scaling
    (AVS) driver (David Wu).
 
  - Fix the usage of notifiers in CPU power management on some
    platforms (Alex Shi).
 
  - Update the pm-graph system suspend/hibernation and boot profiling
    utility (Todd Brandt).
 
  - Make it possible to run the cpupower utility without CPU0 (Prarit
    Bhargava).
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Merge tag 'pm-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "This time (again) cpufreq gets the majority of changes which mostly
  are driver updates (including a major consolidation of intel_pstate),
  some schedutil governor modifications and core cleanups.

  There also are some changes in the system suspend area, mostly related
  to diagnostics and debug messages plus some renames of things related
  to suspend-to-idle. One major change here is that suspend-to-idle is
  now going to be preferred over S3 on systems where the ACPI tables
  indicate to do so and provide requsite support (the Low Power Idle S0
  _DSM in particular). The system sleep documentation and the tools
  related to it are updated too.

  The rest is a few cpuidle changes (nothing major), devfreq updates,
  generic power domains (genpd) framework updates and a few assorted
  modifications elsewhere.

  Specifics:

   - Drop the P-state selection algorithm based on a PID controller from
     intel_pstate and make it use the same P-state selection method
     (based on the CPU load) for all types of systems in the active mode
     (Rafael Wysocki, Srinivas Pandruvada).

   - Rework the cpufreq core and governors to make it possible to take
     cross-CPU utilization updates into account and modify the schedutil
     governor to actually do so (Viresh Kumar).

   - Clean up the handling of transition latency information in the
     cpufreq core and untangle it from the information on which drivers
     cannot do dynamic frequency switching (Viresh Kumar).

   - Add support for new SoCs (MT2701/MT7623 and MT7622) to the mediatek
     cpufreq driver and update its DT bindings (Sean Wang).

   - Modify the cpufreq dt-platdev driver to autimatically create
     cpufreq devices for the new (v2) Operating Performance Points (OPP)
     DT bindings and update its whitelist of supported systems (Viresh
     Kumar, Shubhrajyoti Datta, Marc Gonzalez, Khiem Nguyen, Finley
     Xiao).

   - Add support for Ux500 to the cpufreq-dt driver and drop the
     obsolete dbx500 cpufreq driver (Linus Walleij, Arnd Bergmann).

   - Add new SoC (R8A7795) support to the cpufreq rcar driver (Khiem
     Nguyen).

   - Fix and clean up assorted issues in the cpufreq drivers and core
     (Arvind Yadav, Christophe Jaillet, Colin Ian King, Gustavo Silva,
     Julia Lawall, Leonard Crestez, Rob Herring, Sudeep Holla).

   - Update the IO-wait boost handling in the schedutil governor to make
     it less aggressive (Joel Fernandes).

   - Rework system suspend diagnostics to make it print fewer messages
     to the kernel log by default, add a sysfs knob to allow more
     suspend-related messages to be printed and add Low Power S0 Idle
     constraints checks to the ACPI suspend-to-idle code (Rafael
     Wysocki, Srinivas Pandruvada).

   - Prefer suspend-to-idle over S3 on ACPI-based systems with the
     ACPI_FADT_LOW_POWER_S0 flag set and the Low Power Idle S0 _DSM
     interface present in the ACPI tables (Rafael Wysocki).

   - Update documentation related to system sleep and rename a number of
     items in the code to make it cleare that they are related to
     suspend-to-idle (Rafael Wysocki).

   - Export a variable allowing device drivers to check the target
     system sleep state from the core system suspend code (Florian
     Fainelli).

   - Clean up the cpuidle subsystem to handle the polling state on x86
     in a more straightforward way and to use %pOF instead of full_name
     (Rafael Wysocki, Rob Herring).

   - Update the devfreq framework to fix and clean up a few minor issues
     (Chanwoo Choi, Rob Herring).

   - Extend diagnostics in the generic power domains (genpd) framework
     and clean it up slightly (Thara Gopinath, Rob Herring).

   - Fix and clean up a couple of issues in the operating performance
     points (OPP) framework (Viresh Kumar, Waldemar Rymarkiewicz).

   - Add support for RV1108 to the rockchip-io Adaptive Voltage Scaling
     (AVS) driver (David Wu).

   - Fix the usage of notifiers in CPU power management on some
     platforms (Alex Shi).

   - Update the pm-graph system suspend/hibernation and boot profiling
     utility (Todd Brandt).

   - Make it possible to run the cpupower utility without CPU0 (Prarit
     Bhargava)"

* tag 'pm-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (87 commits)
  cpuidle: Make drivers initialize polling state
  cpuidle: Move polling state initialization code to separate file
  cpuidle: Eliminate the CPUIDLE_DRIVER_STATE_START symbol
  cpufreq: imx6q: Fix imx6sx low frequency support
  cpufreq: speedstep-lib: make several arrays static, makes code smaller
  PM: docs: Delete the obsolete states.txt document
  PM: docs: Describe high-level PM strategies and sleep states
  PM / devfreq: Fix memory leak when fail to register device
  PM / devfreq: Add dependency on PM_OPP
  PM / devfreq: Move private devfreq_update_stats() into devfreq
  PM / devfreq: Convert to using %pOF instead of full_name
  PM / AVS: rockchip-io: add io selectors and supplies for RV1108
  cpufreq: ti: Fix 'of_node_put' being called twice in error handling path
  cpufreq: dt-platdev: Drop few entries from whitelist
  cpufreq: dt-platdev: Automatically create cpufreq device with OPP v2
  ARM: ux500: don't select CPUFREQ_DT
  cpuidle: Convert to using %pOF instead of full_name
  cpufreq: Convert to using %pOF instead of full_name
  PM / Domains: Convert to using %pOF instead of full_name
  cpufreq: Cap the default transition delay value to 10 ms
  ...
2017-09-05 12:19:08 -07:00
Wolfram Sang a205425658 mfd: twl: Move header file out of I2C realm
include/linux/i2c is not for client devices. Move the header file to a
more appropriate location.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-04 14:41:02 +01:00
H. Nikolaus Schaller 5d01fd38a3 power: supply: bq27xxx: enable writing capacity values for bq27421
Tested on Pyra prototype with bq27421.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-31 10:25:24 +02:00
Hans de Goede 18f8e6f695 power: supply: bq24190_charger: Get input_current_limit from our supplier
On some devices the USB Type-C port power (USB PD 2.0) negotiation is
done by a separate port-controller IC, while the current limit is
controlled through another (charger) IC.

It has been decided to model this by modelling the external Type-C
power brick (adapter/charger) as a power-supply class device which
supplies the charger-IC, with its voltage-now and current-max representing
the negotiated voltage and max current draw.

This commit adds support for this to the bq24190_charger driver by adding
an external_power_changed callback and calling
power_supply_set_input_current_limit_from_supplier from this callback.
This callback will only get called if the bq24190 has a parent-supply.

Note this replaces the functionality to get the current-limit from an
extcon device, which will be removed in a follow-up commit.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-30 18:02:02 +02:00
Hans de Goede 66b6bef2c4 power: supply: bq24190_charger: Export 5V boost converter as regulator
Register the 5V boost converter as a regulator named "usb_otg_vbus".

This commit also adds support for bq24190_platform_data, through which
non device-tree platforms can pass the regulator_init_data (containing
mappings for the consumer amongst other things).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-30 17:31:51 +02:00
Liam Breck 14e1a131b5 power: supply: bq24190_charger: Add power_supply_battery_info support
Set pre-charge and charge-term current, obtained from power_supply_battery_info.
Add sysfs attributes precharge_current & charge_term_current.

Cc: Hans de Goede <hdegoede@redhat.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Liam Breck <kernel@networkimprov.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29 23:08:39 +02:00
Liam Breck 8412a5bea7 power: supply: bq24190_charger: Add property system-minimum-microvolt
Set minimum system voltage limit obtained from device property.

Cc: Hans de Goede <hdegoede@redhat.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Liam Breck <kernel@networkimprov.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29 23:08:39 +02:00
Liam Breck a4c7590b8d power: supply: bq24190_charger: Enable devicetree config
Add get_config(). Rename set_mode_host() to set_config().
Call get_config() and hw_init() after power_supply_register().
No functional changes.

Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Liam Breck <kernel@networkimprov.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29 23:08:38 +02:00
Liam Breck 1059361fb6 power: supply: bq27xxx: Remove duplicate chip data arrays
BQ2751X & BQ27510G3 have identical regs & props.
BQ2750X & BQ27510G3 have identical props.
BQ27500 & BQ27510G1 & BQ27510G2 have identical regs & props.
BQ27500 & BQ27520G2 have identical props.
Remove the duplicate arrays.

No functional changes to the driver.

Signed-off-by: Liam Breck <kernel@networkimprov.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29 23:08:38 +02:00
Liam Breck 05045379b2 power: supply: bq27xxx: Enable data memory update for certain chips
Support data memory update on BQ27425. Parameters from TI datasheets are also
provided for BQ27500, 545, 421, 441, 621; however these are commented out,
as they are not tested.

Add BQ27XXX_O_CFGUP & _O_RAM for use in bq27xxx_chip_data[n].opts
and by data memory update functions.

Signed-off-by: Liam Breck <kernel@networkimprov.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29 12:44:27 +02:00
Liam Breck 3a731c6414 power: supply: bq27xxx: Add chip IDs for previously shadowed chips
For the existing features, these chips act like others already ID'd,
so they had false but functional IDs. We will be adding features
which require correct IDs, so the following IDs are added:
BQ2752X, 531, 542, 546, 742, 425, 441, 621

Chip-specific features are now tracked by BQ27XXX_O_* flags in di->opts.

No functional changes to the driver.

Signed-off-by: Liam Breck <kernel@networkimprov.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29 12:37:35 +02:00
Liam Breck 9aade6d8f9 power: supply: bq27xxx: Create single chip data table
To support new features which require different data for each chip, we
unify the bq27xxx_regs and bq27xxx_battery_props tables into a single one.

No functional changes to the driver.

Signed-off-by: Liam Breck <kernel@networkimprov.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29 12:30:34 +02:00
Liam Breck 64b46b7b87 power: supply: bq24190_charger: Add ti,bq24192i to devicetree table
bq24192i was previously only in ID table, so add it to DT table.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Liam Breck <kernel@networkimprov.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29 12:28:58 +02:00
Hans de Goede 74229f9384 power: supply: bq24190_charger: Add input_current_limit property
Export the input current limit of the charger as a
POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT property on the charger
power_supply class device.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29 12:26:59 +02:00
Hans de Goede c3142dd8be power: supply: Add power_supply_set_input_current_limit_from_supplier helper
On some devices the USB Type-C port power (USB PD 2.0) negotiation is
done by a separate port-controller IC, while the current limit is
controlled through another (charger) IC.

It has been decided to model this by modelling the external Type-C
power brick (adapter/charger) as a power-supply class device which
supplies the charger-IC, with its voltage-now and current-max representing
the negotiated voltage and max current draw.

This commit adds a power_supply_set_input_current_limit_from_supplier
helper function which charger power-supply drivers can call to get
the max-current from their supplier and have this applied
through their set_property call-back to their input-current-limit.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29 12:24:52 +02:00
Hans de Goede 4f1e0cb788 power: supply: max17042_battery: Fix compiler warning
Fix drivers/power/supply/max17042_battery.c:1059:6:
warning: 'acpi_id' may be used uninitialized in this function.

No idea why my gcc version did not catch this.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29 12:04:14 +02:00
Markus Elfring 1e743997fb power: supply: core: Delete two error messages for a failed memory allocation in power_supply_check_supplies()
Omit extra messages for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-28 18:50:39 +02:00
Bhumika Goyal c023b90699 power: supply: make device_attribute const
Make these const as they are only passed as an argument to the
function device_create_file and device_remove_file and the corresponding
arguments are of type const.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-28 18:48:44 +02:00
Hans de Goede a865a15556 power: supply: max17042_battery: Fix ACPI interrupt issues
On some x86/ACPI boards the DSDT defines an ACPI event handler for
the max17047 IRQ, this causes several problems:

1) We need to share the IRQ to avoid an error getting it

2) Even of we are willing to share, we may fail to share because some
   DSDTs claim it exclusivly

3) If we are unable to share the IRQ, or the IRQ is only listed as an
   ACPI event source and not in the max1704 firmware node, then the
   charge threshold IRQ (which is used to give an IRQ every 1 percent
   charge change) becomes a problem, the ACPI event handler will not
   update this to the next 1 percent threshold, so the IRQ keeps firing
   and we get an IRQ storm pegging 1 CPU core.

   This happens despite the max17042 driver not setting the charge
   threshold because Windows uses it and leaves it set on reboot.

   So if we are unable to get the IRQ we need to reprogram the
   charge threshold to its disabled setting.

This commit fixes al of the above, while at it it also makes the error
msg when being unable to get the IRQ consistent with other messages.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-28 18:19:07 +02:00
Hans de Goede e21162029a power: supply: max17042_battery: Add support for ACPI enumeration
Some x86 devices enumerate a max17047 fuel-gauge through a MAX17047
ACPI firmware-node, add support for this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-28 18:19:07 +02:00
David Wu 9d913e4343 PM / AVS: rockchip-io: add io selectors and supplies for RV1108
This adds the necessary data for handling io voltage domains on the RV1108.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-08-25 01:45:23 +02:00
Baolin Wang 626b6cd5f5 power: wm831x_power: Support USB charger current limit management
Integrate with the newly added USB charger interface to limit the current
we draw from the USB input based on the input device configuration
identified by the USB stack, allowing us to charge more quickly from high
current inputs without drawing more current than specified from others.

Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-08-15 15:05:01 +03:00
Colin Ian King 810e006a82 power: supply: lp8788: Make several arrays static const * const
Don't populate various read only arrays on the stack but make them
static const, making the object code smaller and saves 148 bytes
overall:

Before:
   text    data     bss     dec     hex filename
  11940    4496      64   16500    4074 lp8788-charger.o

After:
   text    data     bss     dec     hex filename
  11472    4816      64   16352    3fe0 lp8788-charger.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-12 13:58:14 -04:00
Christophe JAILLET 18a89d5c7c power: supply: charger-manager: Slighly simplify code
Use 'sizeof(*var)' instead of the equivalent 'sizeof(data structure type)'
because it is less verbose.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-11 18:54:35 +02:00
Christophe JAILLET 0299484e4d power: supply: charger-manager: Fix a comment
Update a comment which is no more up to date since commit
2ed9e9b653.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-11 18:53:59 +02:00
Christophe JAILLET 096fc160b7 power: supply: charger-manager: Fix a NULL pointer dereference in 'charger_manager_probe()'
'devm_kzalloc()' can return NULL. Return -ENOMEM in this case in order to
avoid a NULL pointer dereference later on.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-11 18:53:18 +02:00
Hans de Goede 46cecd130d power: supply: Fix power_supply_am_i_supplied to return -ENODEV when apropriate
Commit 2848e039c5 ("power: supply: Make power_supply_am_i_supplied return
-ENODEV if there are no suppliers") was supposed to make
power_supply_am_i_supplied() return -ENODEV when there are no supplies
which supply the supply passed to it.

But instead it will only return -ENODEV when there are no supplies at
all as data->count++; is incremented on every call of the iterator, rather
then only when __power_supply_is_supplied_by returns true. This commit
fixes this.

Fixes: 2848e039c5 ("power: supply: Make power_supply_am_i_supplied ...")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-09 17:56:46 +02:00
Bhumika Goyal 16ac345b15 power: supply: add const to bin_attribute structures
Add const to bin_attribute structures as they are only passed to the
functions sysfs_{remove/create}_bin_file or
device_{remove/create}_bin_file. The corresponding parameters
passed are of type const, so declare the structures to be const.

Done using Coccinelle:

@m disable optional_qualifier@
identifier s;
position p;
@@
static struct bin_attribute s@p={...};

@okay1@
position p;
identifier m.s;
@@
(
sysfs_create_bin_file(...,&s@p,...)
|
sysfs_remove_bin_file(...,&s@p,...)
)

@bad@
position p!={m.p,okay1.p};
identifier m.s;
@@
s@p

@change depends on !bad disable optional_qualifier@
identifier m.s;
@@
static
+const
struct bin_attribute s={...};

Same script was modified for device_{create/remove}_bin_file functions.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-09 17:42:56 +02:00
Andrew F. Davis 67bd22c09a power: supply: bq27xxx: move platform driver code into bq27xxx_battery_hdq.c
When the BQ27xxx driver was originally written the w1 subsystem only
allowed device drivers for w1 attached devices to live in the w1
subsystem. Kernel driver subsystems expect that the driver for a device
live in the directory of the subsystem for which it implements
functionality, not in the directory of the bus that it is attached. To
work around this, the BQ27xxx driver was implemented as a platform device
driver and the interface driver would instantiate this device from within
the w1 directory, then pass a w1 read callback as platform data.

As we can now have the w1 interface driver in the power/supply directory
(like we do already with the i2c interface driver) we can remove this
middle-layer platform driver.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25 15:31:21 +02:00
Sebastian Reichel c8143b7288 Merge branch 'psy-w1-for-v4.14-immutable' into for-next
Merge immutable branch moving bq27000 driver from w1 subsystem
into power-supply subsystem.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25 15:18:27 +02:00
Andrew F. Davis 55a9db6791 power: supply: move HDQ interface for bq27xxx from w1 to power/supply
The HDQ interface driver should be in this folder just like the I2C
interface driver. Move this driver out of drivers/w1/slave and into
drivers/power/supply.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25 15:17:39 +02:00
Dragos Bogdan 17825ff6ec power: supply: ltc2941-battery-gauge: Add LTC2944 support
LTC2944 is compatible with LTC2943, but uses different
voltage and current computing constants.

Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com>
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Dragos Bogdan <dragos.bogdan@analog.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25 12:13:04 +02:00
Ladislav Michl a65df832f9 power: supply: ltc2941-battery-gauge: Add LTC2942 support
LTC2942 is pin compatible with LTC2941 providing additional
informations about battery voltage and temperature. It can
be runtime detected using bit A7 in the Status register.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Dragos Bogdan <dragos.bogdan@analog.com>
Tested-by: Dragos Bogdan <dragos.bogdan@analog.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25 12:10:52 +02:00
Ladislav Michl 63e67c5769 power: supply: ltc2941-battery-gauge: Prepare for LTC2942 and LTC2944
In order to support LTC2942 which has temperature registers
at different offsets than LTC2943 use following register naming
scheme (prefixes):
- LTC294X_ common registers
- LTC2942_ chips specific registers
- LTC2943_ specific registers

LTC2944 is compatible with LTC2943 but uses different constants
to compute voltage and current, so replace num_regs misused
for device indentification with real device id to discriminate
between those two.

There are no functional changes.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Dragos Bogdan <dragos.bogdan@analog.com>
Tested-by: Dragos Bogdan <dragos.bogdan@analog.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25 12:03:23 +02:00
Phil Reid adcf04c9f8 power: supply: sbs-battery: Add delay when changing capacity mode bit
At least with the Inspired Energy compatible batteries a delay is required
after setting the capacity mode bit from amp to watts or the reverse.
Setting the bit and then immediately pooling the status register results
in an unknown error being returned in the register. Add the delay results
in and ok status being return. This was also seen when reading the charge
and energy registers where the wrong value was returned for the requested
mode.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Tested-by: Michael Heinemann <committed@heine.so>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25 11:30:28 +02:00
Phil Reid b70f0a2896 power: supply: sbs-battery: sort includes
Sort the header includes prior to adding to the list.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25 11:23:39 +02:00
Phil Reid 6d1eebc99b power: supply: sbs-battery: Remove FSF mailing address from comments
checkpatch issued an error in having the FSF address in the comment.
As address may change and Linux already includes a copy.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25 11:23:16 +02:00
Sebastian Reichel d4e2385c69 Merge branch 'fixes' into for-next
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24 20:53:15 +02:00
Alex A. Mihaylov 10e48b7d73 power: supply: Add support for MAX1721x standalone fuel gauge
The MAX17211 monitor a single cell pack. The MAX17215 monitor and
balance a 2S or 3S pack or monitor a multiple-series cell pack.
Both device use 1-Wire interfce.

Signed-off-by: Alex A. Mihaylov <minimumlaw@rambler.ru>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24 14:09:34 +02:00
Arvind Yadav 980092efd4 power: supply: constify attribute_group structures.
attribute_groups are not supposed to change at runtime. All functions
working with attribute_groups provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   2673	    400	      0	   3073	    c01	power/supply/pcf50633-charger.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   2737	    336	      0	   3073	    bed	power/supply/pcf50633-charger.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24 14:09:32 +02:00
Rob Herring 2f04cd2a9b power: reset: Convert to using %pOF instead of full_name
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: linux-pm@vger.kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24 14:09:31 +02:00
Sergei Shtylyov 648b8eba20 power: supply: act8945a_charger: fix of_irq_get() error check
of_irq_get() may return any negative error number as well as 0 on failure,
while the driver only checks for -EPROBE_DEFER, blithely continuing with
the call to devm_request_irq() -- that function expects *unsigned int*,
so would probably fail anyway when a large IRQ number resulting from a
conversion of a negative error number is passed to it... This, however,
is incorrect behavior -- error number is not IRQ number.

Check for 'irq <= 0' instead and return -ENXIO from probe if of_irq_get()
returned 0.

Fixes: a09209acd6 ("power: supply: act8945a_charger: Add status change update support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24 14:09:00 +02:00
Arnd Bergmann 8b35bf5927 power: supply: cpcap-charger: add OMAP_USB2 dependency
When CONFIG_OMAP_USB2 is set to 'm' and the charger driver is built-in,
we get this link failure:

drivers/power/supply/cpcap-charger.o: In function `cpcap_charger_probe':
cpcap-charger.c:(.text+0x48c): undefined reference to `omap_usb2_set_comparator'
drivers/power/supply/cpcap-charger.o: In function `cpcap_charger_remove':
cpcap-charger.c:(.text+0x774): undefined reference to `omap_usb2_set_comparator'

This adds a dependency to prevent that problem, while still allowing
compile-testing with the OMAP_USB2 driver completely disabled.

Fixes: 0c9888e3c1 ("power: supply: cpcap-charger: Add minimal CPCAP PMIC battery charger")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24 14:08:59 +02:00
Michael Heinemann 0188155a23 power: supply: sbs-battery: correct capacity mode selection bits
The capacity mode bit is bit 15. Currently it is written as
default initialized enum and never shifted. This leads to
a behaviour where the BATTERY_MODE is not correctly
recognized and set again.

This commit initializes the enum accordingly.

Signed-off-by: Michael Heinemann <committed@heine.so>
Tested-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24 14:08:52 +02:00
Linus Torvalds dc087d1ef1 power supply and reset changes for the v4.13 series (part 2)
* two fixes for twl4030-charger
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Merge tag 'for-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply fixes from  Reichel:
 "I have two more fixes for the power-supply subsystem:

   - two fixes for twl4030-charger"

* tag 'for-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
  power: supply: twl4030-charger: add deferred probing for phy and iio
  power: supply: twl4030-charger: move irq allocation to just before irqs are enabled
2017-07-13 11:47:59 -07:00
Linus Torvalds a897a10141 power supply and reset changes for the v4.13 series
* New drivers
  - Linear ltc3651 charger driver
  - Motorola CPCAP battery fuel-gauge driver
 * New chip/feature support
  - bq27xxx: prepare for chip data setup
  - axp20x_battery: support max charge current setup
 * New core features
  - add Apple Brick ID type
  - support "supplied-from" device property for generic ACPI/pdata support
  - support strings for sysfs properties representing enums
  - introduce battery-info (backend is DT only for now)
  - provide reboot-mode header globally
 * Misc. fixes
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Merge tag 'for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

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

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

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

  .. and misc fixes"

* tag 'for-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (39 commits)
  power: supply: sbs-battery: Don't needlessly set CAPACITY_MODE
  power: supply: sbs-battery: Prevent CAPACITY_MODE races
  power: supply: bq24735: remove incorrect le16_to_cpu calls
  power: supply: sbs-battery: remove incorrect le16_to_cpu calls
  power: supply: cpcap-charger: Add missing power_supply_config
  power: supply: twl4030-charger: move allocation of iio channel to the beginning
  power: supply: twl4030-charger: allocate iio by devm_iio_channel_get() and fix error path
  power: supply: core: constify psy_tcd_ops.
  dt-bindings: power: supply: cpcap-battery: Add power-supplies property
  dt-bindings: power: supply: move max8903-charger.txt to proper location
  dt-bindings: power: supply: move maxim,max14656.txt to proper location
  power: supply: twl4030_charger: Use sysfs_match_string() helper
  power: reset: reboot-mode: Make include file global
  power: supply: axp20x_battery: add DT support for battery max constant charge current
  power: supply: axp20x_battery: add support for DT battery
  power: supply: bq27xxx: Add power_supply_battery_info support
  power: supply: bq27xxx: Add chip data memory read/write support
  power: supply: bq27xxx: Add bulk transfer bus methods
  dt-bindings: power: supply: bq27xxx: Add monitored-battery documentation
  power: supply: core: Add power_supply_prop_precharge
  ...
2017-07-04 14:25:14 -07:00
Linus Torvalds 408c9861c6 Power management updates for v4.13-rc1
- Rework suspend-to-idle to allow it to take wakeup events signaled
    by the EC into account on ACPI-based platforms in order to properly
    support power button wakeup from suspend-to-idle on recent Dell
    laptops (Rafael Wysocki).
 
    That includes the core suspend-to-idle code rework, support for
    the Low Power S0 _DSM interface, and support for the ACPI INT0002
    Virtual GPIO device from Hans de Goede (required for USB keyboard
    wakeup from suspend-to-idle to work on some machines).
 
  - Stop trying to export the current CPU frequency via /proc/cpuinfo
    on x86 as that is inaccurate and confusing (Len Brown).
 
  - Rework the way in which the current CPU frequency is exported by
    the kernel (over the cpufreq sysfs interface) on x86 systems with
    the APERF and MPERF registers by always using values read from
    these registers, when available, to compute the current frequency
    regardless of which cpufreq driver is in use (Len Brown).
 
  - Rework the PCI/ACPI device wakeup infrastructure to remove the
    questionable and artificial distinction between "devices that
    can wake up the system from sleep states" and "devices that can
    generate wakeup signals in the working state" from it, which
    allows the code to be simplified quite a bit (Rafael Wysocki).
 
  - Fix the wakeup IRQ framework by making it use SRCU instead of
    RCU which doesn't allow sleeping in the read-side critical
    sections, but which in turn is expected to be allowed by the
    IRQ bus locking infrastructure (Thomas Gleixner).
 
  - Modify some computations in the intel_pstate driver to avoid
    rounding errors resulting from them (Srinivas Pandruvada).
 
  - Reduce the overhead of the intel_pstate driver in the HWP
    (hardware-managed P-states) mode and when the "performance"
    P-state selection algorithm is in use by making it avoid
    registering scheduler callbacks in those cases (Len Brown).
 
  - Rework the energy_performance_preference sysfs knob in
    intel_pstate by changing the values that correspond to
    different symbolic hint names used by it (Len Brown).
 
  - Make it possible to use more than one cpuidle driver at the same
    time on ARM (Daniel Lezcano).
 
  - Make it possible to prevent the cpuidle menu governor from using
    the 0 state by disabling it via sysfs (Nicholas Piggin).
 
  - Add support for FFH (Fixed Functional Hardware) MWAIT in ACPI C1
    on AMD systems (Yazen Ghannam).
 
  - Make the CPPC cpufreq driver take the lowest nonlinear performance
    information into account (Prashanth Prakash).
 
  - Add support for hi3660 to the cpufreq-dt driver, fix the
    imx6q driver and clean up the sfi, exynos5440 and intel_pstate
    drivers (Colin Ian King, Krzysztof Kozlowski, Octavian Purdila,
    Rafael Wysocki, Tao Wang).
 
  - Fix a few minor issues in the generic power domains (genpd)
    framework and clean it up somewhat (Krzysztof Kozlowski,
    Mikko Perttunen, Viresh Kumar).
 
  - Fix a couple of minor issues in the operating performance points
    (OPP) framework and clean it up somewhat (Viresh Kumar).
 
  - Fix a CONFIG dependency in the hibernation core and clean it up
    slightly (Balbir Singh, Arvind Yadav, BaoJun Luo).
 
  - Add rk3228 support to the rockchip-io adaptive voltage scaling
    (AVS) driver (David Wu).
 
  - Fix an incorrect bit shift operation in the RAPL power capping
    driver (Adam Lessnau).
 
  - Add support for the EPP field in the HWP (hardware managed
    P-states) control register, HWP.EPP, to the x86_energy_perf_policy
    tool and update msr-index.h with HWP.EPP values (Len Brown).
 
  - Fix some minor issues in the turbostat tool (Len Brown).
 
  - Add support for AMD family 0x17 CPUs to the cpupower tool and fix
    a minor issue in it (Sherry Hurwitz).
 
  - Assorted cleanups, mostly related to the constification of some
    data structures (Arvind Yadav, Joe Perches, Kees Cook, Krzysztof
    Kozlowski).
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Merge tag 'pm-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "The big ticket items here are the rework of suspend-to-idle in order
  to add proper support for power button wakeup from it on recent Dell
  laptops and the rework of interfaces exporting the current CPU
  frequency on x86.

  In addition to that, support for a few new pieces of hardware is
  added, the PCI/ACPI device wakeup infrastructure is simplified
  significantly and the wakeup IRQ framework is fixed to unbreak the IRQ
  bus locking infrastructure.

  Also, there are some functional improvements for intel_pstate, tools
  updates and small fixes and cleanups all over.

  Specifics:

   - Rework suspend-to-idle to allow it to take wakeup events signaled
     by the EC into account on ACPI-based platforms in order to properly
     support power button wakeup from suspend-to-idle on recent Dell
     laptops (Rafael Wysocki).

     That includes the core suspend-to-idle code rework, support for the
     Low Power S0 _DSM interface, and support for the ACPI INT0002
     Virtual GPIO device from Hans de Goede (required for USB keyboard
     wakeup from suspend-to-idle to work on some machines).

   - Stop trying to export the current CPU frequency via /proc/cpuinfo
     on x86 as that is inaccurate and confusing (Len Brown).

   - Rework the way in which the current CPU frequency is exported by
     the kernel (over the cpufreq sysfs interface) on x86 systems with
     the APERF and MPERF registers by always using values read from
     these registers, when available, to compute the current frequency
     regardless of which cpufreq driver is in use (Len Brown).

   - Rework the PCI/ACPI device wakeup infrastructure to remove the
     questionable and artificial distinction between "devices that can
     wake up the system from sleep states" and "devices that can
     generate wakeup signals in the working state" from it, which allows
     the code to be simplified quite a bit (Rafael Wysocki).

   - Fix the wakeup IRQ framework by making it use SRCU instead of RCU
     which doesn't allow sleeping in the read-side critical sections,
     but which in turn is expected to be allowed by the IRQ bus locking
     infrastructure (Thomas Gleixner).

   - Modify some computations in the intel_pstate driver to avoid
     rounding errors resulting from them (Srinivas Pandruvada).

   - Reduce the overhead of the intel_pstate driver in the HWP
     (hardware-managed P-states) mode and when the "performance" P-state
     selection algorithm is in use by making it avoid registering
     scheduler callbacks in those cases (Len Brown).

   - Rework the energy_performance_preference sysfs knob in intel_pstate
     by changing the values that correspond to different symbolic hint
     names used by it (Len Brown).

   - Make it possible to use more than one cpuidle driver at the same
     time on ARM (Daniel Lezcano).

   - Make it possible to prevent the cpuidle menu governor from using
     the 0 state by disabling it via sysfs (Nicholas Piggin).

   - Add support for FFH (Fixed Functional Hardware) MWAIT in ACPI C1 on
     AMD systems (Yazen Ghannam).

   - Make the CPPC cpufreq driver take the lowest nonlinear performance
     information into account (Prashanth Prakash).

   - Add support for hi3660 to the cpufreq-dt driver, fix the imx6q
     driver and clean up the sfi, exynos5440 and intel_pstate drivers
     (Colin Ian King, Krzysztof Kozlowski, Octavian Purdila, Rafael
     Wysocki, Tao Wang).

   - Fix a few minor issues in the generic power domains (genpd)
     framework and clean it up somewhat (Krzysztof Kozlowski, Mikko
     Perttunen, Viresh Kumar).

   - Fix a couple of minor issues in the operating performance points
     (OPP) framework and clean it up somewhat (Viresh Kumar).

   - Fix a CONFIG dependency in the hibernation core and clean it up
     slightly (Balbir Singh, Arvind Yadav, BaoJun Luo).

   - Add rk3228 support to the rockchip-io adaptive voltage scaling
     (AVS) driver (David Wu).

   - Fix an incorrect bit shift operation in the RAPL power capping
     driver (Adam Lessnau).

   - Add support for the EPP field in the HWP (hardware managed
     P-states) control register, HWP.EPP, to the x86_energy_perf_policy
     tool and update msr-index.h with HWP.EPP values (Len Brown).

   - Fix some minor issues in the turbostat tool (Len Brown).

   - Add support for AMD family 0x17 CPUs to the cpupower tool and fix a
     minor issue in it (Sherry Hurwitz).

   - Assorted cleanups, mostly related to the constification of some
     data structures (Arvind Yadav, Joe Perches, Kees Cook, Krzysztof
     Kozlowski)"

* tag 'pm-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (69 commits)
  cpufreq: Update scaling_cur_freq documentation
  cpufreq: intel_pstate: Clean up after performance governor changes
  PM: hibernate: constify attribute_group structures.
  cpuidle: menu: allow state 0 to be disabled
  intel_idle: Use more common logging style
  PM / Domains: Fix missing default_power_down_ok comment
  PM / Domains: Fix unsafe iteration over modified list of domains
  PM / Domains: Fix unsafe iteration over modified list of domain providers
  PM / Domains: Fix unsafe iteration over modified list of device links
  PM / Domains: Handle safely genpd_syscore_switch() call on non-genpd device
  PM / Domains: Call driver's noirq callbacks
  PM / core: Drop run_wake flag from struct dev_pm_info
  PCI / PM: Simplify device wakeup settings code
  PCI / PM: Drop pme_interrupt flag from struct pci_dev
  ACPI / PM: Consolidate device wakeup settings code
  ACPI / PM: Drop run_wake from struct acpi_device_wakeup_flags
  PM / QoS: constify *_attribute_group.
  PM / AVS: rockchip-io: add io selectors and supplies for rk3228
  powercap/RAPL: prevent overridding bits outside of the mask
  PM / sysfs: Constify attribute groups
  ...
2017-07-04 13:39:41 -07:00
H. Nikolaus Schaller 7bb5a650f3 power: supply: twl4030-charger: add deferred probing for phy and iio
This fixes an issue if both this twl4030_charger driver and
phy-twl4030-usb are compiled as modules and loaded in random order.

It has been observed on GTA04 and OpenPandora devices that in worst
case the boot process hangs and in best case the AC detection fails
with a warning.

Therefore we add deferred probing checks for the usb_phy and the
iio channel for AC detection.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-03 19:15:22 +02:00