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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Device Support:
- Add support for 88pm860; 88pm80x
- Add support for 24c08 EEPROM; at24
- Add support for Broxton Whiskey Cove; intel*
- Add support for RTS522A; rts5227
- Add support for I2C devices; intel_quark_i2c_gpio
New Functionality:
- Add microphone support; arizona
- Add general purpose switch support; arizona
- Add fuel-gauge support; da9150-core
- Add shutdown support; sec-core
- Add charger support; tps65217
- Add flexible serial communication unit support; atmel-flexcom
- Add power button support; axp20x
- Add led-flash support; rt5033
Core Frameworks:
- Supply a generic macro for defining Regmap IRQs
- Rework ACPI child device matching
Fix-ups:
- Use Regmap to access registers; tps6105x
- Use DEFINE_RES_IRQ_NAMED() macro; da9150
- Re-arrange device registration order; intel_quark_i2c_gpio
- Allow OF matching; cros_ec_i2c, atmel-hlcdc, hi6421-pmic, max8997, sm501
- Handle deferred probe; twl6040
- Improve accuracy of headphone detect; arizona
- Unnecessary MODULE_ALIAS() removal; bcm590xx, rt5033
- Remove unused code; htc-i2cpld, arizona, pcf50633-irq, sec-core
- Simplify code; kempld, rts5209, da903x, lm3533, da9052, arizona
- Remove #iffery; arizona
- DT binding adaptions; many
Bug Fixes:
- Fix possible NULL pointer dereference; wm831x, tps6105x
- Fix 64bit bug; intel_soc_pmic_bxtwc
- Fix signedness issue; arizona"
* tag 'mfd-for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (73 commits)
bindings: mfd: s2mps11: Add documentation for s2mps15 PMIC
mfd: sec-core: Remove unused s2mpu02-rtc and s2mpu02-clk children
extcon: arizona: Add extcon specific device tree binding document
MAINTAINERS: Add binding docs for Cirrus Logic/Wolfson Arizona devices
mfd: arizona: Remove bindings covered in new subsystem specific docs
mfd: rt5033: Add RT5033 Flash led sub device
mfd: lpss: Add Intel Broxton PCI IDs
mfd: lpss: Add Broxton ACPI IDs
mfd: arizona: Signedness bug in arizona_runtime_suspend()
mfd: axp20x: Add a cell for the power button part of the, axp288 PMICs
mfd: dt-bindings: Document pulled down WRSTBI pin on S2MPS1X
mfd: sec-core: Disable buck voltage reset on watchdog falling edge
mfd: sec-core: Dump PMIC revision to find out the HW
mfd: arizona: Use correct type ID for device tree config
mfd: arizona: Remove use of codec build config #ifdefs
mfd: arizona: Simplify adding subdevices
mfd: arizona: Downgrade type mismatch messages to dev_warn
mfd: arizona: Factor out checking of jack detection state
mfd: arizona: Factor out DCVDD isolation control
mfd: Make TPS6105X select REGMAP_I2C
...
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This adds power supply driver support for the Fuel-Gauge part of
the DA9150 combined Charger and Fuel-Gauge device.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Acked-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
- new AXP20X USB Power driver
- new Qualcomm SMBB driver
- new TPS65217 Charger driver
- BQ24257: add BQ24250/BQ24251 support
- overhaul bq27x00 battery driver, rename to bq27xxx
- misc fixes and cleanups
* tag 'for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (54 commits)
power: bq27xxx_battery: Remove unneeded dependency in Kconfig
power: bq27xxx_battery: move irq handler to i2c section
power: bq27xxx_battery: fix platform probe
twl4030_charger: add missing iio dependency
power_supply: charger-manager: add missing of_node_put
Documentation: power: bq24257: Document exported sysfs entries
power: bq24257: Add various device-specific sysfs properties
power: bq24257: Allow input current limit sysfs access
power: bq24257: Add input DPM voltage threshold setting support
power: bq24257: Add over voltage protection setting support
power: bq24257: Add SW-based approach for Power Good determination
power: bq24257: Allow manual setting of input current limit
power: bq24257: Add bit definition for temp sense enable
power: bq24257: Add basic support for bq24250/bq24251
dt: power: bq24257-charger: Cover additional devices
power: bq24257: Simplify bq24257_power_supply_init()
power: bq24257: Use managed power supply register
power: bq24257: Streamline input current limit setup
power: bq24257: Remove IRQ config through stat-gpios
power: bq27xxx_battery: fix signedness bug in bq27xxx_battery_read_health()
...
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I2C is only required when using the config item BATTERY_BQ27XXX_I2C which
already depends on the I2C subsystem, remove the unneeded dependency from
BATTERY_BQ27XXX.
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>
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The IRQ handler is not used by the platform based
code resulting in a 'defined but not used' warning,
if CONFIG_BQ27XXX_I2C is not enabled.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Andrew F. Davis <afd@ti.com>
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Add missing initialization of register mapping table to
platform probe function.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Andrew F. Davis <afd@ti.com>
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This driver fails to link without CONFIG_IIO, since
there are no stubs for the iio_channels functions.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Marek Belisko <marek@goldelico.com>
Acked-by: Nikolaus Schaller <hns@goldelico.com>
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for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.
The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):
// <smpl>
@@
expression root,e;
local idexpression child;
@@
for_each_child_of_node(root, child) {
... when != of_node_put(child)
when != e = child
(
return child;
|
+ of_node_put(child);
? return ...;
)
...
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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This patch adds support for enabling/disabling optional device specific
features through sysfs properties at runtime.
* High-impedance mode enable/disable
* Sysoff enable/disable
Refer to the respective device datasheets for more information:
http://www.ti.com/product/bq24250
http://www.ti.com/product/bq24251
http://www.ti.com/product/bq24257
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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This patch allows reading and writing of the input current limit through
the power supply's input_current_limit sysfs property. This allows
userspace to see what charger was detected (if the D+/D- USB signal-
based charger type detection is enabled) and to re-configure the maximum
current drawn from the external supply at runtime based on system-level
knowledge or user input. Note that upon charger disconnection and
re-connection the limit configured through firmware becomes active again
(or the D+/D- USB signal-based charger detection will be run again).
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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A new optional device property called "ti,in-dpm-voltage" is introduced
to allow configuring the input voltage threshold for the devices'
dynamic power path management (DPM) feature. In short, it can be used to
prevent the input voltage from dropping below a certain value as current
is drawn to charge the battery or supply the system.
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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A new optional device property called "ti,ovp-voltage" is introduced to
allow configuring the input over voltage protection setting.
This commit also adds the basic sysfs support for custom properties
which is being used to allow userspace to read the current ovp-voltage
setting.
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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A software-based approach for determining the charger's input voltage
"Power Good" state is introduced for devices like the bq24250 which
don't have a dedicated hardware pin for that purpose. This SW-based
approach is also used for other devices (with dedicated PG pin) as a
fall back solution if that pin is not configured to be used through
"pg-gpios".
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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A new optional device property called "ti,current-limit" is introduced
to allow disabling the D+/D- USB signal-based charger type auto-
detection algorithm used to set the input current limit and instead to
use a fixed input current limit.
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Adding a missing bit definition for the sake of consistency device model
vs. bit field representation. No change in functionality.
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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This patch adds basic support for bq24250 and bq24251 which are very
similar to the bq24257 the driver was originally written for. Basic
support means the ability to select a device through Kconfig, DT and
ACPI, an instance variable allowing to check which chip is active, and
the reporting back of the selected device through the model_name power
supply sysfs property.
This patch by itself is not sufficient to actually use those two added
devices in a real-world setting due to some feature differences which
are addressed by other patches in this series.
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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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>
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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>
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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>
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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>
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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: 74aab849f342 ('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>
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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>
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Since commit 1c6c69525b40 ("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: b5874f33bbaf ("wm831x_power: Use genirq")
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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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>
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"state" is a bool so it's never less than zero. The intent was to test
"ret" instead.
Fixes: 56d7df8716b2 ('power: Add Qualcomm SMBB driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Commit b68c3161430a (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: b68c3161430a ("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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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Commit dca1a4b5ff6e ("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>
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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>
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Commit dca1a4b5ff6e ("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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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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>
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