Commit Graph

662728 Commits

Author SHA1 Message Date
Hans de Goede
c67c06939e power: supply: max17042_battery: Use sign_extend32 instead of DIY code
Use sign_extend32 to sign-extend variables where necessary instead of
DIY code.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 12:37:16 +02:00
Colin Ian King
7f232af356 power: supply: ab8500_charger: spelling: "prechage" -> "precharge"
trivial fix to spelling mistake in dev_error message.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 12:37:01 +02:00
Arnd Bergmann
6254a6a944 power: supply: axp20x_usb_power: add IIO dependency
When CONFIG_IIO=m and the axp20x_usb_power driver is built-in, we get
a link time error:

drivers/power/built-in.o: In function `axp20x_usb_power_get_property':
undefined reference to `iio_read_channel_processed'
drivers/power/built-in.o: In function `axp20x_usb_power_probe':
undefined reference to `devm_iio_channel_get'
undefined reference to `devm_iio_channel_get'

This adds the same dependency that we already have for the AC power driver
to the USB power driver. For consistency, I'm also moving the two closer
together in the Kconfig file.

Fixes: 33863c938c ("power: supply: axp20x_usb_power: use IIO channels when available")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 11:56:49 +02:00
Pan Bian
8b20839988 power: supply: isp1704: Fix unchecked return value of devm_kzalloc
Function devm_kzalloc() will return a NULL pointer. However, in function
isp1704_charger_probe(), the return value of devm_kzalloc() is directly
used without validation. This may result in a bad memory access bug.

Fixes: 34a109610e ("isp1704_charger: Add DT support")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 11:52:25 +02:00
Rahul Bedarkar
756e142a4b power: supply: generic-adc-battery: use SIMPLE_DEV_PM_OPS helper macro
Replace ifdefs with SIMPLE_DEV_PM_OPS helper macro.

Signed-off-by: Rahul Bedarkar <rahulbedarkar89@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 11:52:24 +02:00
Ryosuke Saito
bb8fe8ea00 power: supply: sbs-battery: fix the sbs interrupt request
Since we use the default primary handler for the irq, IRQF_ONESHOT must
be set. Otherwise the request fails and the following errors are
displayed:

genirq: Threaded irq requested with handler=NULL and !ONESHOT for irq 129
sbs-battery 0-000b: Failed to request irq: -22

Signed-off-by: Ryosuke Saito <raitosyo@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 11:52:24 +02:00
Quentin Schulz
46c202b5f2 power: supply: add battery driver for AXP20X and AXP22X PMICs
The X-Powers AXP20X and AXP22X PMICs can have a battery as power supply.

This patch adds the battery power supply driver to get various data from
the PMIC, such as the battery status (charging, discharging, full,
dead), current max limit, current current, battery capacity (in
percentage), voltage max and min limits, current voltage and battery
capacity (in Ah).

This battery driver uses the AXP20X/AXP22X ADC driver as PMIC data
provider.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 11:52:23 +02:00
Quentin Schulz
7221675c70 dt-bindings: power: supply: add AXP20X/AXP22X battery DT binding
The X-Powers AXP20X and AXP22X PMICs can have a battery as power supply.

This patch adds the DT binding documentation for the battery power
supply which gets various data from the PMIC, such as the battery status
(charging, discharging, full, dead), current max limit, current current,
battery capacity (in percentage), voltage max and min limits, current
voltage and battery capacity (in Ah).

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 11:52:23 +02:00
Liam Breck
1eb2869b3c power: supply: bq24190_charger: Deprecate battery class and replicate its features in charger
The driver was registering two classes, bq24190-battery & -charger.
Because the power supply framework cannot surface features from multiple
drivers in a single class, a fuel gauge driver would create a third class,
which some power management utilities cannot see.

Deprecate the -battery class for future removal and replicate its features
in -charger. Set /sys/class...-charger/online = pg_stat && !batfet_disable.
If device_property "omit-battery-class" is set, don't register -battery.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Liam Breck <kernel@networkimprov.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 11:52:15 +02:00
Hans de Goede
2848e039c5 power: supply: Make power_supply_am_i_supplied return -ENODEV if there are no suppliers
It is sensible to assume that the hardware actually always has a
way of charging the battery so when power_supply_am_i_supplied does not
find any suppliers, that does not mean that there are none, but simply
that no power_supply-drivers are registered / bound for any suppliers for
the supply calling power_supply_am_i_supplied.

At which point a fuel-gauge driver calling power_supply_am_i_supplied()
cannot determine whether the battery is being charged or not.

Allow a caller of power_supply_am_i_supplied to differentiate between
there not being any suppliers, vs no suppliers being online by returning
-ENODEV if there are no suppliers matching supplied_to / supplied_from,
which allows fuel-gauge drivers to return POWER_SUPPLY_STATUS_UNKNOWN
rather then POWER_SUPPLY_STATUS_DISCHARGING if there are no suppliers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 11:51:20 +02:00
H. Nikolaus Schaller
19a2ee69c2 power: supply: twl4030-charger: don't check if battery is present
We can't assume that the battery is or stays present after probing
on devices with replaceable battery.

On some devices (e.g. GTA04 or OpenPanodra) it can be removed
and even be hot swapped by the user while device continues to operate
through external AC or USB power (as long as system power consumption
remains below ca. 500mA as provided by USB). Under certain conditions
it is possible to boot without battery.

So it makes no sense to check for this situation during probe and make
the charger driver (and its status reports) completely non-operational if
the battery can be inserted later.

Tested on: GTA04 and OpenPandora.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 11:41:37 +02:00
H. Nikolaus Schaller
3fb319c2cd power: supply: twl4030-charger: add writable INPUT_CURRENT_LIMIT property
Currently, the twl4030 charger defines its own max_current by directly
creating sysfs nodes. It should use the input_current_limit property
which is e.g. used by the bq24257 driver.

This patch adds the input_current_property with the same semantics as
the max_current property. The code to manage the max_current property
is removed by a separate patch.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 11:37:11 +02:00
Hans de Goede
6cf62a3b97 power: supply: bq24190_charger: Add disable-reset device-property
Allow platform-code to disable the reset on probe and suspend/resume
by setting a "disable-reset" boolean device property on the device.

There are several reasons why the platform-code may want to disable
the reset on probe and suspend/resume:

1) Resetting the charger should never be necessary it should always have
sane values programmed. If it is running with invalid values while we
are not running (system turned off or suspended) there is a big problem
as that may lead to overcharging the battery.

2) The reset in suspend() is meant to put the charger back into default
mode, but this is not necessary and not a good idea. If the charger has
been programmed with a higher max charge_current / charge_voltage then
putting it back in default-mode will reset those to the safe power-on
defaults, leading to slower charging, or charging to a lower voltage
(and thus not using the full capacity) while suspended which is
undesirable. Reprogramming the max charge_current / charge_voltage
after the reset will not help here as that will put the charger back
in host mode and start the i2c watchdog if the host then does not do
anything for 40s (iow if we're suspended for more then 40s) the watchdog
expires resetting the device to default-mode, including resetting all
the registers to there safe power-on defaults. So the only way to keep
using custom charge settings while suspending is to keep the charger in
its normal running state with the i2c watchdog disabled. This is fine
as the charger will still automatically switch from constant current
to constant voltage and stop charging when the battery is full.

3) Besides never being necessary resetting the charger also causes
problems on systems where the charge voltage limit is set higher then the
reset value, if this is the case and the charger is reset while charging
and the battery voltage is between the 2 voltages, then about half the
time the charger gets confused and claims to be charging (REG08 contains
0x64) but in reality the charger has decoupled itself from VBUS (Q1 off)
and is drawing 0A from VBUS, leaving the system running from the battery.

This last problem is happening on a GPD-win mini PC with a bq24292i
charger chip combined with a max17047 fuel-gauge and a LiHV battery.
I've checked and TI does not list any errata for the bq24292i which
could explain this (there are no errata at all).

Cc: Liam Breck <kernel@networkimprov.net>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Liam Breck <kernel@networkimprov.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-01 11:34:20 +02:00
Hans de Goede
6c381663bb power: supply: bq24190_charger: Use new extcon_register_notifier_all()
When I submitted the extcon handling I had a patch pending for the
extcon sub-system for extcon_register_notifier to take -1 as cable id
for listening for all type cable events on an extcon with a single
notifier.

In the end it was decided to instead add a new
extcon_register_notifier_all function for this, switch to using this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Liam Breck <kernel@networkimprov.net>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:45:06 +02:00
Sebastian Reichel
ddaa00ee63 Merge remote-tracking branch 'chanwoo-extcon/ib-extcon-4.12' into psy-next 2017-04-14 01:41:45 +02:00
Liam Breck
61489b0f9f power: supply: bq24190_charger: Longer delay while polling reset flag
On chip reset, polling loop used udelay(10) which is too short
to be useful. Instead, use usleep_range(100, 200).

Signed-off-by: Liam Breck <kernel@networkimprov.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:35 +02:00
Liam Breck
e3ebc381a9 power: supply: bq24190_charger: Uniform pm_runtime_get() failure handling
On pm_runtime_get() failure, always emit an error message.
Prevent unbalanced pm_runtime_get by calling:
  pm_runtime_put_noidle() in irq handler
  pm_runtime_put_sync() on any probe() failure
Rename probe() out labels instead of renumbering them.

Fixes: 13d6fa8447fa ("power: bq24190_charger: Use PM runtime autosuspend")
Signed-off-by: Liam Breck <kernel@networkimprov.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:35 +02:00
Liam Breck
03add17fe3 power: supply: bq24190_charger: Clean up extcon code
Polishing and fixes for initial extcon patch.

Fixes: 4db249b6f3b4 ("power: supply: bq24190_charger: Use extcon to determine ilimit, 5v boost")
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Liam Breck <kernel@networkimprov.net>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:35 +02:00
Liam Breck
d63d07c6fc power: supply: bq24190_charger: Limit over/under voltage fault logging
If the charger is unplugged before the battery is full we may
see an over/under voltage fault. Ignore this rather then emitting
a message or uevent.

This fixes messages like these getting logged on charger unplug + replug:
bq24190-charger 15-006b: Fault: boost 0, charge 1, battery 0, ntc 0
bq24190-charger 15-006b: Fault: boost 0, charge 0, battery 0, ntc 0

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>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:35 +02:00
David Lechner
53db88586a power: supply: New driver for LEGO MINDSTORMS EV3 battery
This adds a new driver for the LEGO MINDSTORMS EV3 battery. The EV3 is
an embedded ARM device that can use 6 AA batteries or a special rechargeable
Li-ion battery pack. The rechargeable battery pack presses a special key
switch in the battery compartment to indicate that it is present.

The EV3 is only capable of monitoring battery voltage and current. The
charging circuit is built into the rechargeable battery pack and there is
no way to communicate with is, so we can't provide any information about
charging status.

When not using the rechargeable battery pack, it is most common to use
alkaline batteries to power the device, but it is also common for people to
use rechargeable NiMH batteries. Since there is not a way to automatically
differentiate between these, the technology property is made writable.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:35 +02:00
David Lechner
11ecb0d234 dt-bindings: power: supply: New bindings for LEGO MINDSTORMS EV3 battery
This add a new device tree binding for LEGO MINDSTORMS EV3 battery. The EV3
has some built-in capability for monitoring the attached battery.

Signed-off-by: David Lechner <david@lechnology.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:35 +02:00
Enric Balletbo i Serra
53a022d0c1 power: supply: tps65217: remove debug messages for function calls
Equivalent information can be nowadays obtained using function tracer.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:35 +02:00
Javier Martinez Canillas
9697277ed5 power: supply: ltc2941-battery-gauge: Add OF device ID table
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Javier Martinez Canillas
c67c372ca6 power: supply: ltc2941-battery-gauge: Add vendor to compatibles in binding
The DT binding document for LTC2941 and LTC2943 battery gauges did not use
a vendor prefix in the listed compatible strings. The driver says that the
manufacturer is Linear Technology which is "lltc" in vendor-prefixes.txt.

There isn't an upstream Device Tree source file that has nodes defined for
these devices, so there's no need to keep the old compatible strings.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Andi Shyti
dc6ea7d4cd power: supply: charger-manager: simplify return statements
Some trivial improvements on the returning value of the
functions:

 - remove unnecessary goto labels that just return, return
   immediately, instead.

 - do not initialize when not needed.

 - return the value from the calling function that fails instead
   of politically choosing -EINVAL.

Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Giedrius Statkevičius
bdd9968d35 power: supply: lp8788: prevent out of bounds array access
val might become 7 in which case stime[7] (array of length 7) would be
accessed during the scnprintf call later and that will cause issues.
Obviously, string concatenation is not intended here so just a comma needs
to be added to fix the issue.

Fixes: 98a2766493 ("power_supply: Add new lp8788 charger driver")
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Acked-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Tony Lindgren
0c9888e3c1 power: supply: cpcap-charger: Add minimal CPCAP PMIC battery charger
The custom CPCAP PMIC used on Motorola phones such as Droid 4 has a
USB battery charger. It can optionally also have a companion chip that
is used for wireless charging.

The charger on CPCAP also can feed VBUS for the USB host mode. This
can be handled by the existing kernel phy_companion interface.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Hans de Goede
da26580f4e power: supply: bq24190_charger: Use extcon to determine ilimit, 5v boost
Add support for monitoring an extcon device with USB SDP/CDP/DCP and HOST
cables and adjust ilimit and enable/disable the 5V boost converter
accordingly. This is necessary on systems where the PSEL pin is hardwired
high and ILIM needs to be set by software based on the detected charger
type, as well as on systems where the 5V boost converter is used, as
that always needs to be enabled from software.

Cc: Liam Breck <kernel@networkimprov.net>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Hans de Goede
99c88eb244 power: supply: bq24190_charger: Add support for bq24192i
The bq24192 and bq24192i are mostly identical to the bq24190, TI even
published a single datasheet for all 3 of them. The difference
between the bq24190 and bq24192[i] is the way charger-type detection
is done, the bq24190 is to be directly connected to the USB a/b lines,
where as the the bq24192[i] has a gpio which should be driven high/low
externally depending on the type of charger connected, from a register
level access pov there is no difference.

The differences between the bq24192 and bq24192i are:
1) Lower default charge rate on the bq24192i
2) Pre-charge-current can be max 640 mA on the bq24192i

On x86/ACPI systems the code which instantiates the i2c client may not
know the exact variant being used, so instead of coding the model-id
in the i2c_id struct and bailing if it does not match, check the reported
model-id matches one of the supported variants.

This commit only adds support for the bq24192i as I don't
have a bq24192 to test with, adding support for the bq24192 should
be as simple as also accepting its model-id in the model-id test.

Cc: Liam Breck <kernel@networkimprov.net>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Hans de Goede
01c0e0a28d power: supply: bq24190_charger: Use i2c-core irq-mapping code
The i2c-core already maps of irqs before calling the driver's probe
function and there are no in tree users of
bq24190_platform_data->gpio_int.

Remove the redundant custom irq-mapping code and just use client->irq.

Cc: Liam Breck <kernel@networkimprov.net>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Arnd Bergmann
b98074e2ad power: bq24190_charger: mark PM functions as __maybe_unused
Without CONFIG_PM, we get a harmless warning:

drivers/power/supply/bq24190_charger.c:1514:12: error: 'bq24190_runtime_resume' defined but not used [-Werror=unused-function]
drivers/power/supply/bq24190_charger.c:1501:12: error: 'bq24190_runtime_suspend' defined but not used [-Werror=unused-function]

To avoid the warning, we can mark all four PM functions as __maybe_unused,
which also lets us remove the incorrect #ifdef.

Fixes: 3d8090cba638 ("power: bq24190_charger: Check the interrupt status on resume")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Liam Breck <kernel@networkimprov.net>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Daniel Perez
dba8347696 power: supply: sbs-charger: simplified bool function
Signed-off-by: Daniel Perez <danielperezdeandres@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Munir Contractor
d71472465a power: supply: ab8500: Replaced spaces with tabs in indent
This patch fixes 4 checkpatch.pl errors on lines 433 to 436:
ERROR: code indent should use tabs where possible

Signed-off-by: Munir Contractor <munircontractor@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Andy Shevchenko
867758793a power: supply: bq25890: Use gpiod_get()
Since index is always 0, replace gpiod_get_index() by gpiod_get().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Enric Balletbo i Serra
cbe5c28789 dt-bindings: power/supply: rename max8925_batter.txt to max8925_battery.txt
Fix the max8925_batter typo in the file name.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Dmitry Torokhov
420b2d443b power: supply: twl4030_charger: remove incorrect __exit markups
Even if bus is not hot-pluggable, the devices can be unbound from the
driver via sysfs, so we should not be using __exit annotations on
remove() methods. The only exception is drivers registered with
platform_driver_probe() which specifically disables sysfs bind/unbind
attributes.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:33 +02:00
Linus Walleij
f7a388d6cd power: reset: Add a driver for the Gemini poweroff
The Gemini (SL3516) SoC has a special power controller block
that only deal with shutting down the system.

If you do not register a driver and activate the block, the
power button on the systems utilizing this SoC will do an
uncontrolled power cut, which is why it is important to have
a special poweroff driver.

The most basic functionality is to just shut down the system
by writing a special bit in the control register after the
system has reached pm_poweroff.

It also handles the poweroff from a button or other sources:

When the poweroff button is pressed, or a signal is sent to
poweroff from an infrared remote control, or when the RTC
fires a special alarm (!) the system emits an interrupt.
At this point, Linux must acknowledge the interrupt and
proceed to do an orderly shutdown of the system.

After adding this driver, pressing the poweroff button gives
this dmesg:

root@gemini:/
root@gemini:/ gemini-poweroff 4b000000.power-controller:
poweroff button pressed

calling shutdown scripts..
setting /dev/rtc0 from system time
unmounting file systems...
umount: tmpfs busy - remounted read-only
umount: can't unmount /: Invalid argument
The system is going down NOW!
Sent SIGTERM to all processes
Sent SIGKILL to all processes
Requesting system poweroff
uhci_hcd 0000:00:09.1: HCRESET not completed yet!
uhci_hcd 0000:00:09.0: HCRESET not completed yet!
reboot: Power down
gemini-poweroff 4b000000.power-controller: Gemini power off

Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-pm@vger.kernel.org
Cc: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:33 +02:00
Linus Walleij
ba443b5ab4 power: reset: Add Gemini poweroff DT bindings
This adds device tree bindings to the power management controller
in the Gemini SoC.

Cc: devicetree@vger.kernel.org
Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:33 +02:00
Javier Martinez Canillas
da28122c82 power: supply: max17040: Add OF device ID table
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:33 +02:00
Guy Shapiro
f2c199db47 power: reset: syscon-poweroff: add a mask property
Make the syscon-poweroff driver accept value and mask instead of
just value.

Prior to this patch, the property name for the value was 'mask'. If
only the mask property is defined on a node, maintain compatibility
by using it as the value.

Signed-off-by: Guy Shapiro <guy.shapiro@mobi-wize.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:33 +02:00
Tony Lindgren
f385e6e2a1 power: bq24190_charger: Use PM runtime autosuspend
We can get quite a few interrupts when the battery is trickle charging.
Let's enable PM runtime autosuspend to avoid constantly toggling device
driver PM runtime state.

Let's use a 600 ms timeout as that's how long the USB chager detection
might take.

Acked-by: Mark Greer <mgreer@animalcreek.com>
Acked-by: Liam Breck <kernel@networkimprov.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:33 +02:00
Tony Lindgren
35c3c196d3 power: bq24190_charger: Check the interrupt status on resume
Some SoCs like omap3 can configure GPIO irqs to use Linux generic
dedicated wakeirq support. If the dedicated wakeirq is configured,
the SoC will use a always-on interrupt controller to produce wake-up
events.

If bq24190 is configured for dedicated wakeirq, we need to check the
interrupt status on PM runtime resume. This is because the Linux
generic wakeirq will call pm_runtime_resume() on the device on a
wakeirq. And as the bq24190 interrupt is falling edge sensitive
and only active for 250 us, there will be no device interrupt seen
by the runtime SoC IRQ controller.

Note that this can cause spurious interrupts on omap3 devices with
bq24190 connected to gpio banks 2 - 5 as there's a glitch on those
pins waking from off mode as listed in "Advisory 1.45". Devices
with this issue should not configure the optional wakeirq interrupt
in the dts file.

Acked-by: Mark Greer <mgreer@animalcreek.com>
Acked-by: Liam Breck <kernel@networkimprov.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:33 +02:00
Chanwoo Choi
815429b39d extcon: Add new extcon_register_notifier_all() to monitor all external connectors
The extcon core already provides the extcon_register_notifier() function
in order to register the notifier block which is used to monitor
the state change for the specific external connector such as EXTCON_USB,
EXTCON_USB_HOST and so on. The extcon consumer uses the this function.

The extcon consumer might need to monitor the all supported external
connectors from the extcon device. In this case, The extcon consumer
should have each notifier_block structure for each external connector.

This patch adds the new extcon_register_notifier_all() function
that extcon consumer is able to monitor the state change of all
supported external connectors by using only one notifier_block structure.

- List of new added functions:
int extcon_register_notifier_all(struct extcon_dev *edev,
			struct notifier_block *nb);
int extcon_unregister_notifier_all(struct extcon_dev *edev,
			struct notifier_block *nb);
int devm_extcon_register_notifier_all(struct device *dev,
			struct extcon_dev *edev, struct notifier_block *nb);
void devm_extcon_unregister_notifier_all(struct device *dev,
			struct extcon_dev *edev, struct notifier_block *nb);

Suggested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
2017-04-04 11:22:42 +09:00
Linus Torvalds
c02ed2e75e Linux 4.11-rc4 2017-03-26 14:15:16 -07:00
Linus Torvalds
0dc82fa59b Char/Misc driver fixes for 4.11-rc4
A smattering of different small fixes for some random driver subsystems.
 Nothing all that major, just resolutions for reported issues and bugs.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "A smattering of different small fixes for some random driver
  subsystems. Nothing all that major, just resolutions for reported
  issues and bugs.

  All have been in linux-next with no reported issues"

* tag 'char-misc-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits)
  extcon: int3496: Set the id pin to direction-input if necessary
  extcon: int3496: Use gpiod_get instead of gpiod_get_index
  extcon: int3496: Add dependency on X86 as it's Intel specific
  extcon: int3496: Add GPIO ACPI mapping table
  extcon: int3496: Rename GPIO pins in accordance with binding
  vmw_vmci: handle the return value from pci_alloc_irq_vectors correctly
  ppdev: fix registering same device name
  parport: fix attempt to write duplicate procfiles
  auxdisplay: img-ascii-lcd: add missing sentinel entry in img_ascii_lcd_matches
  Drivers: hv: vmbus: Don't leak memory when a channel is rescinded
  Drivers: hv: vmbus: Don't leak channel ids
  Drivers: hv: util: don't forget to init host_ts.lock
  Drivers: hv: util: move waiting for release to hv_utils_transport itself
  vmbus: remove hv_event_tasklet_disable/enable
  vmbus: use rcu for per-cpu channel list
  mei: don't wait for os version message reply
  mei: fix deadlock on mei reset
  intel_th: pci: Add Gemini Lake support
  intel_th: pci: Add Denverton SOC support
  intel_th: Don't leak module refcount on failure to activate
  ...
2017-03-26 11:15:54 -07:00
Linus Torvalds
9e54ef9da5 driver core fix for 4.11-rc4
Here is a single kernfs fix for 4.11-rc4 that resolves a reported issue.
 
 It has been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fix from Greg KH:
 "Here is a single kernfs fix for 4.11-rc4 that resolves a reported
  issue.

  It has been in linux-next with no reported issues"

* tag 'driver-core-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  kernfs: Check KERNFS_HAS_RELEASE before calling kernfs_release_file()
2017-03-26 11:05:42 -07:00
Linus Torvalds
f1638fc65e TTY/Serial driver fixes for 4.11-rc4
Here are some tty and serial driver fixes for 4.11-rc4.  One of these
 fix a long-standing issue in the ldisc code that was found by Dmitry
 Vyukov with his great fuzzing work.  The other fixes resolve other
 reported issues, and there is one revert of a patch in 4.11-rc1 that
 wasn't correct.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver fixes from Greg KH:
 "Here are some tty and serial driver fixes for 4.11-rc4.

  One of these fix a long-standing issue in the ldisc code that was
  found by Dmitry Vyukov with his great fuzzing work. The other fixes
  resolve other reported issues, and there is one revert of a patch in
  4.11-rc1 that wasn't correct.

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

* tag 'tty-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: fix data race in tty_ldisc_ref_wait()
  tty: don't panic on OOM in tty_set_ldisc()
  Revert "tty: serial: pl011: add ttyAMA for matching pl011 console"
  tty: acpi/spcr: QDF2400 E44 checks for wrong OEM revision
  serial: 8250_dw: Fix breakage when HAVE_CLK=n
  serial: 8250_dw: Honor clk_round_rate errors in dw8250_set_termios
2017-03-26 11:03:42 -07:00
Linus Torvalds
53b4d5911d IIO fixes for 4.11-rc4
Here are some small IIO driver fixes for 4.11-rc4 that resolve a number
 of tiny reported issues.  All of these have been in linux-next for a
 while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull IIO driver fixes from Greg KH:
 "Here are some small IIO driver fixes for 4.11-rc4 that resolve a
  number of tiny reported issues. All of these have been in linux-next
  for a while with no reported issues"

* tag 'staging-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  iio: imu: st_lsm6dsx: fix FIFO_CTRL2 overwrite during watermark configuration
  iio: adc: ti_am335x_adc: fix fifo overrun recovery
  iio: sw-device: Fix config group initialization
  iio: magnetometer: ak8974: remove incorrect __exit markups
  iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3
2017-03-26 11:02:00 -07:00
Linus Torvalds
e431e0e427 USB/PHY fixes for 4.11-rc4
Here are a number of small USB and PHY driver fixes for 4.11-rc4.
 Nothing major here, just an bunch of small fixes, and a handfull of good
 fixes from Johan for devices with crazy descriptors.  There are a few
 new device ids in here as well.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY fixes from Greg KH:
 "Here are a number of small USB and PHY driver fixes for 4.11-rc4.

  Nothing major here, just an bunch of small fixes, and a handfull of
  good fixes from Johan for devices with crazy descriptors. There are a
  few new device ids in here as well.

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

* tag 'usb-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits)
  usb: gadget: f_hid: fix: Don't access hidg->req without spinlock held
  usb: gadget: udc: remove pointer dereference after free
  usb: gadget: f_uvc: Sanity check wMaxPacketSize for SuperSpeed
  usb: gadget: f_uvc: Fix SuperSpeed companion descriptor's wBytesPerInterval
  usb: gadget: acm: fix endianness in notifications
  usb: dwc3: gadget: delay unmap of bounced requests
  USB: serial: qcserial: add Dell DW5811e
  usb: hub: Fix crash after failure to read BOS descriptor
  ACM gadget: fix endianness in notifications
  USB: usbtmc: fix probe error path
  USB: usbtmc: add missing endpoint sanity check
  USB: serial: option: add Quectel UC15, UC20, EC21, and EC25 modems
  usb: musb: fix possible spinlock deadlock
  usb: musb: dsps: fix iounmap in error and exit paths
  usb: musb: cppi41: don't check early-TX-interrupt for Isoch transfer
  usb-core: Add LINEAR_FRAME_INTR_BINTERVAL USB quirk
  uwb: i1480-dfu: fix NULL-deref at probe
  uwb: hwa-rc: fix NULL-deref at probe
  USB: wusbcore: fix NULL-deref at probe
  USB: uss720: fix NULL-deref at probe
  ...
2017-03-26 10:52:52 -07:00
Linus Torvalds
42234bf832 powerpc fixes for 4.11 #6
- cxl: Route eeh events to all slices for pci_channel_io_perm_failure state
  - powerpc/64s: Fix idle wakeup potential to clobber registers
  - Revert "powerpc/64: Disable use of radix under a hypervisor"
  - gcc-plugins: update architecture list in documentation
 
 Thanks to:
   Andrew Donnellan, Nicholas Piggin, Paul Mackerras, Vaibhav Jain.
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Merge tag 'powerpc-4.11-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull more powerpc fixes from Michael Ellerman:
 "These are all pretty minor. The fix for idle wakeup would be a bad bug
  but has not been observed in practice.

  The update to the gcc-plugins docs was Cc'ed to Kees and Jon, Kees
  OK'ed it going via powerpc and I didn't hear from Jon.

   - cxl: Route eeh events to all slices for pci_channel_io_perm_failure state

   - powerpc/64s: Fix idle wakeup potential to clobber registers

   - Revert "powerpc/64: Disable use of radix under a hypervisor"

   - gcc-plugins: update architecture list in documentation

  Thanks to: Andrew Donnellan, Nicholas Piggin, Paul Mackerras, Vaibhav
  Jain"

* tag 'powerpc-4.11-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  gcc-plugins: update architecture list in documentation
  Revert "powerpc/64: Disable use of radix under a hypervisor"
  powerpc/64s: Fix idle wakeup potential to clobber registers
  cxl: Route eeh events to all slices for pci_channel_io_perm_failure state
2017-03-26 10:34:10 -07:00