Commit Graph

1193 Commits

Author SHA1 Message Date
Andreas Dannenberg
3b84b8efef power: bq24257: Simplify bq24257_power_supply_init()
Eliminate a few lines of code by using the PTR_ERR_OR_ZERO() macro.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-29 16:48:28 +02:00
Andreas Dannenberg
dfc602524b power: bq24257: Use managed power supply register
Use the devm_* managed version of the function to register the power
supply and remove the associated unregister function. This will simplify
error handling moving forward as it allows the unregister to happen
automatically. It also saves a few lines of code.

As this changes the order of putting the bq24257 into reset vs.
unregistering the power-supply during driver remove re-tested various
driver unload scenario to make sure that this doesn't cause any
unintended side effects such as erroneous interrupts.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-29 16:48:07 +02:00
Andreas Dannenberg
9b1cf1e44d power: bq24257: Streamline input current limit setup
The maximum amount of input current the charger should draw is dependent
on the power supply and should only be (re-)configured when the power
supply gets connected and disconnected. However the driver was also
lowering the bq24257's input current limit setting to 500mA when the
battery was removed and restored the previous setting according to the
power supply capabilities when the battery was reconnected although
these events are not impacting the amount of power that can be drawn
from the supply. Furthermore, a re-configuration of the input current
limit to 500mA when the battery gets disconnected is actually dangerous
if the limit was set higher previously and the system draws more than
500mA in which case the system voltage would be reduced in order to
maintain 500mA which could result in the system getting too low of a
supply to maintain operation. Last but not least the mechanism itself
used for battery re-connection detection did not work in corner cases
such as when the device's input current loop becomes active and the
bq24257 device clears its battery fault error resulting in incorrectly
reporting that the battery got reconnected.

This patches removes the impact the battery removal/insertion has on the
input current limit configured for the bq24257 and simplifies the
associated handler routine.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-28 18:47:50 +02:00
Andreas Dannenberg
5ff8c89d11 power: bq24257: Remove IRQ config through stat-gpios
At the time the driver was written GpioInt resources in ACPI were not
passed to the driver in client->irq, as opposed to DT enumeration. To
accommodate this use case, a "stat-gpios" property was introduced to
allow configuring the IRQ.

However this issue with ACPI was fixed in commit "845c877 i2c / ACPI:
Assign IRQ for devices that have GpioInt automatically" and makes this
workaround no longer necessary, hence we can remove the support for the
"stat-gpios" property and the associated code from the bq24257 driver.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-28 18:36:35 +02:00
Andrzej Hajda
2edd69a81d power: bq27xxx_battery: fix signedness bug in bq27xxx_battery_read_health()
We need flags to be signed for the error handling to work.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576

Fixes: 74aab849f3 ('power: bq27xxx_battery: Cleanup health checking')
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-By: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-28 18:07:48 +02:00
Marek Belisko
2202e1fc5a drivers: power: twl4030_charger: fix link problems when building as module
If either twl4030_charger or twl4030_madc is configured as MODULE,
we get build (link) errors.

To solve, the direct call of twl4030_get_madc_conversion() is replaced
by a call to iio_read_channel_processed().

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-26 19:10:09 +02:00
Valentin Rothberg
90adf98d95 wm831x_power: Use IRQF_ONESHOT to request threaded IRQs
Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests")
threaded IRQs without a primary handler need to be requested with
IRQF_ONESHOT, otherwise the request will fail.

scripts/coccinelle/misc/irqf_oneshot.cocci detected this issue.

Fixes: b5874f33bb ("wm831x_power: Use genirq")
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-26 18:55:09 +02:00
Enric Balletbo i Serra
3636859b28 power_supply: Add support for tps65217-charger.
This patch adds support for the tps65217 charger driver. This driver is
responsible for controlling the charger aspect of the tps65217 mfd.
Currently, this mainly consists of turning on and off the charger, but
some other features of the charger can be supported through this driver.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-24 22:43:13 +02:00
Dan Carpenter
0bc58e9381 power: qcom_smbb: test the correct variable
"state" is a bool so it's never less than zero.  The intent was to test
"ret" instead.

Fixes: 56d7df8716 ('power: Add Qualcomm SMBB driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-24 22:35:24 +02:00
Pali Rohár
28153a31b8 bq2415x_charger: Fix null pointer dereference
Commit b68c316143 (bq2415x_charger: Allow to load and use driver even if
notify device is not registered yet) introduced null pointer dereference in
case bq is NULL. This patch fixes it.

Fixes: b68c316143 ("bq2415x_charger: Allow to load and use driver even if notify device is not registered yet")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-23 18:59:19 +02:00
Andrew F. Davis
8807feb91b power: bq27xxx_battery: Add interrupt handling support
Some devices have a pin that can generate an interrupt when
the battery's status changes. Add an interrupt handler to
read the new battery status.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-23 17:36:18 +02:00
Andrew F. Davis
74aab849f3 power: bq27xxx_battery: Cleanup health checking
Reorganize the logic checking battery health and add under temperature
condition checking.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-23 17:36:18 +02:00
Andrew F. Davis
d74534c277 power: bq27xxx_battery: Add support for additional bq27xxx family devices
Add support for additional devices and register equivalent family devices
including the bq27010, bq27210, bq27500, bq27510, bq27520, bq27530,
bq27531, bq27541, bq27542, bq27546, bq27545, bq27441, bq27421, and the
bq27641.

To facilitate this process the register mapings have been moved to tables
and other small cleanups have been made.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-23 17:15:27 +02:00
Andrew F. Davis
c570903290 power: bq27xxx_battery: Fix typos and change naming for state of charge functions
Fix typos and change "relative state of charge" to "state of charge" as not
all supported devices use relative state of charge.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-23 16:23:59 +02:00
Andrew F. Davis
424cfde49a power: bq27xxx_battery: Platform initialization must declare a device
When initialized as a platform device the initializer must now specify
a device. An empty device name is no longer valid.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-23 16:23:12 +02:00
Andrew F. Davis
081bab217d power: bq27x00_battery: Renaming for consistency
Rename functions that are used by multiple devices. New devices
have been added and the function names and driver name are no longer
general enough for the functionality they provide.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: GUAN Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-23 16:16:22 +02:00
Andrew F. Davis
95b8aff2a6 power: bq27x00_battery: Remove unneeded i2c MODULE_ALIAS
The MODULE_DEVICE_TABLE macro automatically adds all needed
i2c MODULE_ALIASes so remove the extra MODULE_ALIAS.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 16:20:10 +02:00
Vaishali Thakkar
5e5822f670 power_supply: max8998: Use devm_power_supply_register
Use managed resource function devm_power_supply_register instead
of power_supply_register to simplify the error path by allowing
unregister to happen automatically on error. To be compatible with
the change, replace various gotos by direct returns and remove
unneeded label err.

Also, remove max8998_battery_remove as it is now redundant.

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 16:20:10 +02:00
Luis de Bethencourt
c72b7bf82c tps65090-charger: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 16:03:37 +02:00
Vaishali Thakkar
0df2deeab4 max8903_charger: Convert to using managed resources
Use managed resource functions devm_request_threaded_irq and
devm_power_supply_register to simplify error handling.

To be compatible with the change, various gotos are replaced
with direct returns and unneeded labels are dropped. Also,
remove max8903_remove as it is now redundant.

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 16:02:16 +02:00
Vaishali Thakkar
50bddb99c1 power: max17042_battery: Convert to using managed resources
Use managed resource functions devm_request_threaded_irq and
devm_power_supply_register to simplify error handling.

Also, remove max17042_remove as it is now redundant.

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 16:01:34 +02:00
Nicolas Ferre
bc312cbdfa power: reset: at91-reset/trivial: driver applies to SAMA5 family as well
This diver doesn't applies only on SAM9 SoC families but on SAMA5 families
as well.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 15:45:39 +02:00
Alexandre Belloni
064380a12e power/reset: at91-poweroff: get and use slow clock
Commit dca1a4b5ff ("clk: at91: keep slow clk enabled to prevent system
hang") added a workaround for the slow clock as it is not properly handled
by its users.

Get and use the slow clock as it is necessary for the at91 shutdown
controller.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 15:18:53 +02:00
Alexandre Belloni
6dd1ad1f23 power/reset: at91-poweroff: allow compiling as a module
It was not possible to compile at91-poweroff as a module. Implement
.remove() to allow it. Also switch to module_platform_driver_probe() as it
is not hotpluggable.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 15:18:53 +02:00
Alexandre Belloni
2b2c6148fe power/reset: at91-reset: get and use slow clock
Commit dca1a4b5ff ("clk: at91: keep slow clk enabled to prevent system
hang") added a workaround for the slow clock as it is not properly handled
by its users.

Get and use the slow clock as it is necessary for the at91 reset
controller.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 15:18:52 +02:00
Alexandre Belloni
6e64180a7c power/reset: at91-reset: allow compiling as a module
It was not possible to compile at91-reset as a module. Implement .remove()
to allow it. Also switch to module_platform_driver_probe() as it is not
hotpluggable.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 15:18:52 +02:00
Alexandre Belloni
eacd8d09db power/reset: at91-reset: remove useless at91_reset_platform_probe()
Since all the at91 platforms are now DT only, at91_reset_platform_probe()
is now useless, remove it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 15:18:52 +02:00
Vaishali Thakkar
2a9123f185 88pm860x_battery: Convert to using managed resources
Use managed resource functions devm_request_threaded_irq and
devm_power_supply_register to simplify error handling.

To be compatible with the change, various gotos are replaced
with direct returns and unneeded labels are dropped. Also,
remove pm860x_battery_remove as it is now redundant.

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 13:35:31 +02:00
Courtney Cavin
56d7df8716 power: Add Qualcomm SMBB driver
Add the Qualcomm Switch-Mode Battery Charger and Boost driver, found in
pm8941.

Signed-off-by: Courtney Cavin <courtney.cavin@sonymobile.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 13:35:30 +02:00
Javier Martinez Canillas
da42bbd99d power: Remove unnecessary MODULE_ALIAS() for I2C drivers
These drivers already have an I2C device id table that is used to create
module aliases and the used MODULE_ALIAS() was either already in the I2C
table so it was redundant or wasn't a valid I2C id so it was never used.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 13:35:30 +02:00
Milo Kim
9615a29932 power:lp8727_charger: parsing child node after getting debounce-ms
According to lp8727 bindings[*], charging parameter is optional.
So parsing can be skipped in case those properties are undefined.
However, 'debounce-ms' should be read prior to checking the properties.
Otherwise, 'debounce-ms' property will be ignored even it is configured
inside the DT.
So, counting child is processed after updating 'debounce-ms'.

[*] Documentation/devicetree/bindings/power_supply/lp8727_charger.txt

Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 13:35:29 +02:00
Milo Kim
87d931d569 power:lp8727_charger: use the private data instead of updating I2C device platform data
Currently, lp8727 charger driver parses the DT and copies values into the
'cl->dev.platform_data' if 'of_node' exists.
This may have architectural issue. Platform data is configurable through
the DT or I2C board info inside the platform area.
However, lp8727 driver changes this configuration when it is loaded.

The driver should get data from the platform side and use the private
data, 'lp8727_chg->pdata' instead of changing the original platform data.

_probe() procedure is changed as follows.
  1. lp8727_parse_dt() returns the pointer of lp8727_platform_data.
     The driver uses this allocated platform data. So it should keep
     original platform data, 'dev->platform_data'.
  2. In _probe(), check the return value of lp8727_parse_dt().
     If an error is found, then exit as PTR_ERR(pdata).
  3. If 'of_node' is not found, then the driver just gets the platform data
     from the I2C device structure.
  4. Map the platform data to private data structure.

Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 13:35:29 +02:00
Mark Brown
c01576c8f3 power: wm831x_power: Convert to devm_kzalloc()
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 13:35:28 +02:00
Hans de Goede
69fb4dcada power: Add an axp20x-usb-power driver
This adds a driver for the usb power_supply bits of the axp20x PMICs.

I initially started writing my own driver, before coming aware of
Bruno Prémont's excellent earlier RFC with a driver for this.

My driver was lacking CURRENT_MAX and VOLTAGE_MIN support Bruno's
drvier has, so I've copied the code for those from his driver.

Note that the AC-power-supply and battery charger bits will need separate
drivers. Each one needs its own devictree child-node so that other
devicetree nodes can reference the right power-supply, and thus each one
will get its own mfd-cell / platform_device and platform-driver.

Cc: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-22 13:35:28 +02:00
Linus Torvalds
2e5735f4c3 power supply and reset fixes for the v4.3 series
* twl4030-charger fixes
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Merge tag 'for-v4.3-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply fixes from Sebastian Reichel:
 "twl4030-charger fixes"

* tag 'for-v4.3-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
  twl4030_charger: fix another compile error
  Revert "twl4030_charger: correctly handle -EPROBE_DEFER from devm_usb_get_phy_by_node"
2015-09-17 12:25:42 -07:00
Linus Torvalds
9ebd051a7d Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal updates from Zhang Rui:

 - use int instead of unsigned long to represent temperature to avoid
   bogus overheat detection when negative temperature reported.  From
   Sascha Hauer.

 - export available thermal governors information to user space via
   sysfs.  From Wei Ni.

 - introduce new thermal driver for Wildcat Point platform controller
   hub, which uses PCH thermal sensor and associated critical and hot
   trip points.  From Tushar Dave.

 - add suuport for Intel Skylake and Denlow platforms in powerclamp
   driver.

 - some small cleanups in thermal core.

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  thermal: Add Intel PCH thermal driver
  thermal: Add comment explaining test for critical temperature
  thermal: Use IS_ENABLED instead of #ifdef
  thermal: remove unnecessary call to thermal_zone_device_set_polling
  thermal: trivial: fix typo in comment
  thermal: consistently use int for temperatures
  thermal: add available policies sysfs attribute
  thermal/powerclamp: add cpu id for denlow platform
  thermal/powerclamp: add cpu id for Skylake u/y
  thermal/powerclamp: add cpu id for skylake h/s
2015-09-11 16:13:47 -07:00
Grazvydas Ignotas
e11fc21e75 twl4030_charger: fix another compile error
When CONFIG_CHARGER_TWL4030=y and CONFIG_TWL4030_MADC=m we get a
compile error:

drivers/built-in.o: In function `twl4030_charger_update_current':
twl4030_charger.c:(.text+0x504681): undefined reference to
`twl4030_get_madc_conversion'

Use IS_REACHABLE to fix it.

Cc: NeilBrown <neil@brown.name>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-10 22:13:11 +02:00
Sebastian Reichel
aefc574bbb Revert "twl4030_charger: correctly handle -EPROBE_DEFER from devm_usb_get_phy_by_node"
Revert commit 3fc3895e4f, since
it introduced a boot failure on some OMAP platforms.

Reported-by: Kevin Hilman <khilman@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-09-10 22:04:07 +02:00
Linus Torvalds
ae98207309 Power management and ACPI material for v4.3-rc1
- ACPICA update to upstream revision 20150818 including method
    tracing extensions to allow more in-depth AML debugging in the
    kernel and a number of assorted fixes and cleanups (Bob Moore,
    Lv Zheng, Markus Elfring).
 
  - ACPI sysfs code updates and a documentation update related to
    AML method tracing (Lv Zheng).
 
  - ACPI EC driver fix related to serialized evaluations of _Qxx
    methods and ACPI tools updates allowing the EC userspace tool
    to be built from the kernel source (Lv Zheng).
 
  - ACPI processor driver updates preparing it for future
    introduction of CPPC support and ACPI PCC mailbox driver
    updates (Ashwin Chaugule).
 
  - ACPI interrupts enumeration fix for a regression related
    to the handling of IRQ attribute conflicts between MADT
    and the ACPI namespace (Jiang Liu).
 
  - Fixes related to ACPI device PM (Mika Westerberg, Srinidhi Kasagar).
 
  - ACPI device registration code reorganization to separate the
    sysfs-related code and bus type operations from the rest (Rafael
    J Wysocki).
 
  - Assorted cleanups in the ACPI core (Jarkko Nikula, Mathias Krause,
    Andy Shevchenko, Rafael J Wysocki, Nicolas Iooss).
 
  - ACPI cpufreq driver and ia64 cpufreq driver fixes and cleanups
    (Pan Xinhui, Rafael J Wysocki).
 
  - cpufreq core cleanups on top of the previous changes allowing it
    to preseve its sysfs directories over system suspend/resume (Viresh
    Kumar, Rafael J Wysocki, Sebastian Andrzej Siewior).
 
  - cpufreq fixes and cleanups related to governors (Viresh Kumar).
 
  - cpufreq updates (core and the cpufreq-dt driver) related to the
    turbo/boost mode support (Viresh Kumar, Bartlomiej Zolnierkiewicz).
 
  - New DT bindings for Operating Performance Points (OPP), support
    for them in the OPP framework and in the cpufreq-dt driver plus
    related OPP framework fixes and cleanups (Viresh Kumar).
 
  - cpufreq powernv driver updates (Shilpasri G Bhat).
 
  - New cpufreq driver for Mediatek MT8173 (Pi-Cheng Chen).
 
  - Assorted cpufreq driver (speedstep-lib, sfi, integrator) cleanups
    and fixes (Abhilash Jindal, Andrzej Hajda, Cristian Ardelean).
 
  - intel_pstate driver updates including Skylake-S support, support
    for enabling HW P-states per CPU and an additional vendor bypass
    list entry (Kristen Carlson Accardi, Chen Yu, Ethan Zhao).
 
  - cpuidle core fixes related to the handling of coupled idle states
    (Xunlei Pang).
 
  - intel_idle driver updates including Skylake Client support and
    support for freeze-mode-specific idle states (Len Brown).
 
  - Driver core updates related to power management (Andy Shevchenko,
    Rafael J Wysocki).
 
  - Generic power domains framework fixes and cleanups (Jon Hunter,
    Geert Uytterhoeven, Rajendra Nayak, Ulf Hansson).
 
  - Device PM QoS framework update to allow the latency tolerance
    setting to be exposed to user space via sysfs (Mika Westerberg).
 
  - devfreq support for PPMUv2 in Exynos5433 and a fix for an incorrect
    exynos-ppmu DT binding (Chanwoo Choi, Javier Martinez Canillas).
 
  - System sleep support updates (Alan Stern, Len Brown, SungEun Kim).
 
  - rockchip-io AVS support updates (Heiko Stuebner).
 
  - PM core clocks support fixup (Colin Ian King).
 
  - Power capping RAPL driver update including support for Skylake H/S
    and Broadwell-H (Radivoje Jovanovic, Seiichi Ikarashi).
 
  - Generic device properties framework fixes related to the handling
    of static (driver-provided) property sets (Andy Shevchenko).
 
  - turbostat and cpupower updates (Len Brown, Shilpasri G Bhat,
    Shreyas B Prabhu).
 
 /
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Merge tag 'pm+acpi-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael Wysocki:
 "From the number of commits perspective, the biggest items are ACPICA
  and cpufreq changes with the latter taking the lead (over 50 commits).

  On the cpufreq front, there are many cleanups and minor fixes in the
  core and governors, driver updates etc.  We also have a new cpufreq
  driver for Mediatek MT8173 chips.

  ACPICA mostly updates its debug infrastructure and adds a number of
  fixes and cleanups for a good measure.

  The Operating Performance Points (OPP) framework is updated with new
  DT bindings and support for them among other things.

  We have a few updates of the generic power domains framework and a
  reorganization of the ACPI device enumeration code and bus type
  operations.

  And a lot of fixes and cleanups all over.

  Included is one branch from the MFD tree as it contains some
  PM-related driver core and ACPI PM changes a few other commits are
  based on.

  Specifics:

   - ACPICA update to upstream revision 20150818 including method
     tracing extensions to allow more in-depth AML debugging in the
     kernel and a number of assorted fixes and cleanups (Bob Moore, Lv
     Zheng, Markus Elfring).

   - ACPI sysfs code updates and a documentation update related to AML
     method tracing (Lv Zheng).

   - ACPI EC driver fix related to serialized evaluations of _Qxx
     methods and ACPI tools updates allowing the EC userspace tool to be
     built from the kernel source (Lv Zheng).

   - ACPI processor driver updates preparing it for future introduction
     of CPPC support and ACPI PCC mailbox driver updates (Ashwin
     Chaugule).

   - ACPI interrupts enumeration fix for a regression related to the
     handling of IRQ attribute conflicts between MADT and the ACPI
     namespace (Jiang Liu).

   - Fixes related to ACPI device PM (Mika Westerberg, Srinidhi
     Kasagar).

   - ACPI device registration code reorganization to separate the
     sysfs-related code and bus type operations from the rest (Rafael J
     Wysocki).

   - Assorted cleanups in the ACPI core (Jarkko Nikula, Mathias Krause,
     Andy Shevchenko, Rafael J Wysocki, Nicolas Iooss).

   - ACPI cpufreq driver and ia64 cpufreq driver fixes and cleanups (Pan
     Xinhui, Rafael J Wysocki).

   - cpufreq core cleanups on top of the previous changes allowing it to
     preseve its sysfs directories over system suspend/resume (Viresh
     Kumar, Rafael J Wysocki, Sebastian Andrzej Siewior).

   - cpufreq fixes and cleanups related to governors (Viresh Kumar).

   - cpufreq updates (core and the cpufreq-dt driver) related to the
     turbo/boost mode support (Viresh Kumar, Bartlomiej Zolnierkiewicz).

   - New DT bindings for Operating Performance Points (OPP), support for
     them in the OPP framework and in the cpufreq-dt driver plus related
     OPP framework fixes and cleanups (Viresh Kumar).

   - cpufreq powernv driver updates (Shilpasri G Bhat).

   - New cpufreq driver for Mediatek MT8173 (Pi-Cheng Chen).

   - Assorted cpufreq driver (speedstep-lib, sfi, integrator) cleanups
     and fixes (Abhilash Jindal, Andrzej Hajda, Cristian Ardelean).

   - intel_pstate driver updates including Skylake-S support, support
     for enabling HW P-states per CPU and an additional vendor bypass
     list entry (Kristen Carlson Accardi, Chen Yu, Ethan Zhao).

   - cpuidle core fixes related to the handling of coupled idle states
     (Xunlei Pang).

   - intel_idle driver updates including Skylake Client support and
     support for freeze-mode-specific idle states (Len Brown).

   - Driver core updates related to power management (Andy Shevchenko,
     Rafael J Wysocki).

   - Generic power domains framework fixes and cleanups (Jon Hunter,
     Geert Uytterhoeven, Rajendra Nayak, Ulf Hansson).

   - Device PM QoS framework update to allow the latency tolerance
     setting to be exposed to user space via sysfs (Mika Westerberg).

   - devfreq support for PPMUv2 in Exynos5433 and a fix for an incorrect
     exynos-ppmu DT binding (Chanwoo Choi, Javier Martinez Canillas).

   - System sleep support updates (Alan Stern, Len Brown, SungEun Kim).

   - rockchip-io AVS support updates (Heiko Stuebner).

   - PM core clocks support fixup (Colin Ian King).

   - Power capping RAPL driver update including support for Skylake H/S
     and Broadwell-H (Radivoje Jovanovic, Seiichi Ikarashi).

   - Generic device properties framework fixes related to the handling
     of static (driver-provided) property sets (Andy Shevchenko).

   - turbostat and cpupower updates (Len Brown, Shilpasri G Bhat,
     Shreyas B Prabhu)"

* tag 'pm+acpi-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (180 commits)
  cpufreq: speedstep-lib: Use monotonic clock
  cpufreq: powernv: Increase the verbosity of OCC console messages
  cpufreq: sfi: use kmemdup rather than duplicating its implementation
  cpufreq: drop !cpufreq_driver check from cpufreq_parse_governor()
  cpufreq: rename cpufreq_real_policy as cpufreq_user_policy
  cpufreq: remove redundant 'policy' field from user_policy
  cpufreq: remove redundant 'governor' field from user_policy
  cpufreq: update user_policy.* on success
  cpufreq: use memcpy() to copy policy
  cpufreq: remove redundant CPUFREQ_INCOMPATIBLE notifier event
  cpufreq: mediatek: Add MT8173 cpufreq driver
  dt-bindings: mediatek: Add MT8173 CPU DVFS clock bindings
  PM / Domains: Fix typo in description of genpd_dev_pm_detach()
  PM / Domains: Remove unusable governor dummies
  PM / Domains: Make pm_genpd_init() available to modules
  PM / domains: Align column headers and data in pm_genpd_summary output
  powercap / RAPL: disable the 2nd power limit properly
  tools: cpupower: Fix error when running cpupower monitor
  PM / OPP: Drop unlikely before IS_ERR(_OR_NULL)
  PM / OPP: Fix static checker warning (broken 64bit big endian systems)
  ...
2015-09-01 19:45:46 -07:00
Linus Torvalds
cf9d615f7f regulator: Updates for v4.3
The biggest changes in the core this time around have been some
 refactorings that move us towards being able to drop the list of
 regulators maintained by the core and instead just use the driver model
 list maintained for the class devices for regulators which will make the
 code smaller and avoid some potential bugs.  Otherwise another fairly
 quiet release for the regulator API, highlights include:
 
  - A new API for setting voltages based on a minimum, target, maximum
    triplet.
  - Support for continuous voltage ranges rather than tables of explicit
    steps in the PWM regulator, requiring less explicit configuration.
  - New driver support for Dialog DA9215, Maxim 77843, Mediatek MT6311
    and Qualcomm RPM.
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Merge tag 'regulator-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "The biggest changes in the core this time around have been some
  refactorings that move us towards being able to drop the list of
  regulators maintained by the core and instead just use the driver
  model list maintained for the class devices for regulators which will
  make the code smaller and avoid some potential bugs.

  Otherwise another fairly quiet release for the regulator API,
  highlights include:

   - a new API for setting voltages based on a minimum, target, maximum
     triplet

   - support for continuous voltage ranges rather than tables of
     explicit steps in the PWM regulator, requiring less explicit
     configuration

   - new driver support for Dialog DA9215, Maxim 77843, Mediatek MT6311
     and Qualcomm RPM"

* tag 'regulator-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (70 commits)
  regulator: mt6311: fix platform_no_drv_owner.cocci warnings
  regulator: ltc3589: Remove unnecessary MODULE_ALIAS()
  regulator: ad5398: Remove unnecessary MODULE_ALIAS()
  regulator: pfuze100: Remove unnecessary MODULE_ALIAS()
  regulator: core: use debug level print in regulator_check_drms
  regulator: lp872x: handle error case
  regulator: lp872x: use the private data instead of updating I2C device platform data
  regulator: isl9305: Export OF module alias information
  regulators: max77693: register driver earlier to avoid deferred probe
  regulator: qcom_smd: Set n_voltages for pm8941_lnldo
  regulator: core: Use IS_ERR_OR_NULL()
  regulator: core: Define regulator_set_voltage_triplet()
  regulator: Regulator driver for the Qualcomm RPM
  regulator: pbias: Fix broken pbias disable functionality
  regulator: core: Spelling fix
  regulator: core: Use class device list for regulator_list in late init
  regulator: core: Move more deallocation into class unregister
  regulator: core: Reduce rdev locking region when releasing regulator
  Input: Remove the max77843 haptic driver
  Input: max77693: Add support for Maxim 77843
  ...
2015-08-31 15:49:19 -07:00
Pali Rohár
b68c316143 bq2415x_charger: Allow to load and use driver even if notify device is not registered yet
Driver bq2415x_charger works also without notify power supply device for
charger detection. But when charger detection is specified in DT, then
bq2415x_charger refused to loaded with -EPROBE_DEFER.

This patch rewrites code so that notify device for charger detection is
checked when power supply event is received and not when registering power
supply device. So this patch allows to use bq2415x_charger driver also when
kernel is compiled without driver for notify power supply device.

Now after this patch scheduled workqueue is called after INIT_DELAYED_WORK,
so it also fix problem when scheduled workqueue was called before init.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-08-21 16:46:38 +02:00
Heiko Stuebner
3fc147e915 PM / AVS: rockchip-io: add io selectors and supplies for rk3368
This adds the necessary data for handling io voltage domains on the rk3368.
As interesting tidbit, the rk3368 contains two separate iodomain areas.
One in the regular General Register Files (GRF) and one in PMUGRF in the
pmu power domain.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-08 03:07:52 +02:00
Heiko Stuebner
28c1f1628e PM / AVS: rockchip-io: depend on CONFIG_POWER_AVS
The rockchip io-domain driver currently only depends on ARCH_ROCKCHIP
itself. This makes it possible to select the power-domain driver, but
not the POWER_AVS class and results in the iodomain-driver not getting
build in this case.

So add the additional dependency, which also results in the driver
config option now being placed nicely into the AVS submenu.

Fixes: 662a958638 ("PM / AVS: rockchip-io: add driver handling Rockchip io domains")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-08-08 03:07:52 +02:00
NeilBrown
b49d15d138 twl4030_charger: fix compile error when TWL4030_MADC not available.
We can only use the madc to check for 'ac' availability if the madc has
been compiled in.  If not: assume always using USB.

Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: NeilBrown <neil@brown.name>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-08-07 07:04:56 +02:00
Andreas Dannenberg
c9f85a90d4 power: bq24190_charger: Fix charge type sysfs property
Access to the BQ24190's configurable charge type property (none, trickle,
fast) is being masked by an incorrect power_supply_property entry. After
applying this patch a new 'charge_type' property will appear in the
bq24190-charger sysfs folder backed up by getters/setters already
present in the driver.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Acked-by: Dan Murphy <dmurphy@ti.com>
Acked-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-08-05 06:01:15 +02:00
Geert Uytterhoeven
1e8b82c1ff power: Allow compile test of GPIO consumers if !GPIOLIB
The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer
functionality only, can still be compiled if GPIOLIB is not enabled.

Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where
appropriate.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-08-05 05:48:08 +02:00
Javier Martinez Canillas
63369b2b99 power: Export I2C module alias information in missing drivers
The I2C core always reports the MODALIAS uevent as "i2c:<client name"
regardless if the driver was matched using the I2C id_table or the
of_match_table. So the driver needs to export the I2C table and this
be built into the module or udev won't have the necessary information
to auto load the correct module when the device is added.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-08-05 05:39:08 +02:00
NeilBrown
21ae40404f twl4030_charger: Increase current carefully while watching voltage.
The USB Battery Charging spec (BC1.2) suggests a dedicated
charging port can deliver from 0.5 to 5.0A at between 4.75 and 5.25
volts.

To choose the "correct" current voltage setting requires a trial
and error approach: try to draw current and see if the voltage drops
too low.

Even with a configured Standard Downstream Port, it may not be possible
to reliably pull 500mA - depending on cable quality and source
quality I have reports of charging failure due to the voltage dropping
too low.

To address both these concerns, this patch introduce incremental
current setting.
The current pull from VBUS is increased in steps of 20mA every 100ms
until the target is reached or until the measure voltage drops below
4.75V.  If the voltage does go too low, the target current is reduced
by 20mA and kept there.

This applies to currents selected automatically, or to values
set via sysfs.  So setting a large value will cause the maximum
available to be used - up to the limit of 1.7A imposed by the
hardware.

Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-08-05 05:23:04 +02:00
NeilBrown
b04b908d8a twl4030_charger: add ac/mode to match usb/mode
This allows AC charging to be turned off, much like usb charging.
"continuous" mode is not available though.

Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-08-05 05:21:57 +02:00
NeilBrown
7f4a633d21 twl4030_charger: add software controlled linear charging mode.
Add a 'continuous' option for usb charging which enables
the "linear" charging mode of the twl4030.

Linear charging does a good job with not-so-reliable power sources.
Auto mode does not work well as it switches off when voltage drops
momentarily.  Care must be taken not to over-charge.

It was used with a bike hub dynamo since a year or so. In that case
there are automatically charging stops when the cyclist needs a break.

Original-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-08-05 05:21:32 +02:00