Nowdays ROHM_CHIP_TYPE_AMOUNT includes not only BD71837/BD71847 but also
BD70528/BD71828 which are not supported by this driver. So it seems not
necessay to have pmic_regulators[ROHM_CHIP_TYPE_AMOUNT] as mapping table.
Simplify the code by removing struct bd718xx_pmic_inits and
pmic_regulators[ROHM_CHIP_TYPE_AMOUNT].
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20200108014256.11282-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This introduces the IPQ4019 VQMMC LDO driver needed for
the SD/EMMC driver I/O level operation.
This will enable introducing SD/EMMC support for the built-in controller.
Signed-off-by: Mantas Pucka <mantas@8devices.com>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20200112113003.11110-1-robert.marko@sartura.hr
Signed-off-by: Mark Brown <broonie@kernel.org>
Use the new .probe_new for i2c drivers.
These drivers do not use const struct i2c_device_id * argument, so convert
them to utilise the simplified i2c driver registration.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20200109155808.22003-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
There is a typo in the error checking. We should be checking
"->rdev[i]" instead of just "->rdev".
Fixes: 6501c1f54a ("regulator: mpq7920: add mpq7920 regulator driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200113125805.xri6jqoxy2ldzqyg@kili.mountain
Signed-off-by: Mark Brown <broonie@kernel.org>
Adding regulator driver for the device mpq7920.
The MPQ7920 PMIC device contains four DC-DC buck converters and
five regulators, is designed for automotive and accessed over I2C.
Fixed sparse warning reported on this patch
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Saravanan Sekar <sravanhome@gmail.com>
Link: https://lore.kernel.org/r/20200109195346.30270-1-sravanhome@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The MP8859 from Monolithic Power Systems is a single output DC/DC
converter. The voltage can be controlled via I2C.
Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Link: https://lore.kernel.org/r/20200106211633.2882-2-m.reichl@fivetechno.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix up inconsistent usage of upper and lowercase letters in "Samsung"
name.
"SAMSUNG" is not an abbreviation but a regular trademarked name.
Therefore it should be written with lowercase letters starting with
capital letter.
Although advertisement materials usually use uppercase "SAMSUNG", the
lowercase version is used in all legal aspects (e.g. on Wikipedia and in
privacy/legal statements on
https://www.samsung.com/semiconductor/privacy-global/).
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200103171131.9900-20-krzk@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Three small fixes here, two the result of Axel Lin's amazing work
tracking down inconsistencies in drivers.
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Merge tag 'regulator-fix-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"Three small fixes here, two the result of Axel Lin's amazing work
tracking down inconsistencies in drivers"
* tag 'regulator-fix-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: bd70528: Remove .set_ramp_delay for bd70528_ldo_ops
regulator: axp20x: Fix axp20x_set_ramp_delay
regulator: axp20x: Fix AXP22x ELDO2 regulator enable bitmask
ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
The .set_ramp_delay should be for bd70528_buck_ops only.
Setting .set_ramp_delay for for bd70528_ldo_ops causes problem because
BD70528_MASK_BUCK_RAMP (0x10) overlaps with BD70528_MASK_LDO_VOLT (0x1f).
So setting ramp_delay for LDOs may change the voltage output, fix it.
Fixes: 99ea37bd1e ("regulator: bd70528: Support ROHM BD70528 regulator block")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/20200101022406.15176-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Current code set incorrect bits when set ramp_delay for AXP20X_DCDC2,
fix it.
Fixes: d29f54df8b ("regulator: axp20x: add support for set_ramp_delay for AXP209")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20191221081049.32490-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Simplify LDO6 voltage getting on BD71828 by removing the
get_voltage call-back and providing the fixed voltage in
regulator_desc instead
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Suggested-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20191219113444.GA28299@localhost.localdomain
Signed-off-by: Mark Brown <broonie@kernel.org>
A copy-paste error was introduced when bitmasks were converted to
macros, incorrectly setting the enable bitmask for ELDO2 to the one
for ELDO1 for the AXP22x units.
Fix it by using the correct macro.
On affected boards, ELDO1 and/or ELDO2 are used to power the camera,
which is currently unsupported.
Fixes: db4a555f7c ("regulator: axp20x: use defines for masks")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20191218044720.21990-1-wens@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
A small set of fixes for mostly minor issues here, the only real code
ones are Wen Yang's fixes for error handling in the core and Christian
Marussi's list_voltage() change which is a fix for disruptively bad
performance for regulators with continuous voltage control (which are
rare).
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Merge tag 'regulator-fix-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A small set of fixes for mostly minor issues here, the only real code
ones are Wen Yang's fixes for error handling in the core and Christian
Marussi's list_voltage() change which is a fix for disruptively bad
performance for regulators with continuous voltage control (which are
rare)"
* tag 'regulator-fix-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: rn5t618: fix module aliases
regulator: max77650: add of_match table
regulator: core: avoid unneeded .list_voltage calls
regulator: s5m8767: Fix a warning message
regulator: core: fix regulator_register() error paths to properly release rdev
regulator: fix use after free issue
ROHM BD71828 is a power management IC containing 7 bucks and 7 LDOs. Bucks
1,2,6 and 7 can be assigned to a regulator group controlled by run-levels.
Eg. Voltages and enable/disable statuses for specific run-levels (run0 to
run3) can be set via register interface and run level changes can then be
done either via I2C or GPIO.
This initial commit does not support assigning bucks to be controlled via
run-levels but only allows them to be individually controlled.
LDO5 voltage can also be controlled by GPIO2 pin and register interfaces
but this driver only supports the control via register.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/5b1c4a22c7945e97ff2a7924abfeb3239043f8eb.1576054779.git.matti.vaittinen@fi.rohmeurope.com
Signed-off-by: Mark Brown <broonie@kernel.org>
platform device aliases were missing, preventing
autoloading of module.
Fixes: 811b700630 ("regulator: rn5t618: add driver for Ricoh RN5T618 regulators")
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Link: https://lore.kernel.org/r/20191211221600.29438-1-andreas@kemnade.info
Signed-off-by: Mark Brown <broonie@kernel.org>
We need the of_match table if we want to use the compatible string in
the pmic's child node and get the regulator driver loaded automatically.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20191210100725.11005-1-brgl@bgdev.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
RK808 can leverage a couple of GPIOs to tweak the ramp rate during DVS
(Dynamic Voltage Scaling). These GPIOs are entirely optional but a
dev_warn() appeared when cleaning this driver to use a more up-to-date
gpiod API. At least reduce the log level to 'info' as it is totally
fine to not populate these GPIO on a hardware design.
This change is trivial but it is worth not polluting the logs during
bringup phase by having real warnings and errors sorted out
correctly.
Fixes: a13eaf02e2 ("regulator: rk808: make better use of the gpiod API")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20191203164709.11127-1-miquel.raynal@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Inside machine_constraints_voltage() a loop is in charge of verifying that
each of the defined voltages are within the configured constraints and
that those constraints are in fact compatible with the available voltages'
list.
When the registered regulator happens to be defined with a wide range of
possible voltages the above O(n) loop can be costly.
Moreover since this behaviour is triggered during the registration process,
it means also that it can be easily triggered at probe time, slowing down
considerably some module loading.
On the other side if such wide range of voltage values happens to be also
continuous and without discontinuity of any kind, the above potentially
cumbersome operation is also useless.
For these reasons, avoid such .list_voltage poll loop when regulator is
described as 'continuous_voltage_range' as is, indeed, similarly already
done inside regulator_is_supported_voltage().
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20191209125239.46054-1-cristian.marussi@arm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
There are several issues with the error handling code of
the regulator_register() function:
ret = device_register(&rdev->dev);
if (ret != 0) {
put_device(&rdev->dev); --> rdev released
goto unset_supplies;
}
...
unset_supplies:
...
unset_regulator_supplies(rdev); --> use-after-free
...
clean:
if (dangling_of_gpiod)
gpiod_put(config->ena_gpiod);
kfree(rdev); --> double free
We add a variable to record the failure of device_register() and
move put_device() down a bit to avoid the above issues.
Fixes: c438b9d017 ("regulator: core: Move registration of regulator device")
Signed-off-by: Wen Yang <wenyang@linux.alibaba.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20191201030250.38074-1-wenyang@linux.alibaba.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This is caused by dereferencing 'rdev' after put_device() in
the _regulator_get()/_regulator_put() functions.
This patch just moves the put_device() down a bit to avoid the
issue.
Signed-off-by: Wen Yang <wenyang@linux.alibaba.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20191124145835.25999-1-wenyang@linux.alibaba.com
Signed-off-by: Mark Brown <broonie@kernel.org>
-EINVAL is not a valid return value for .of_map_mode, return
REGULATOR_MODE_INVALID instead.
Fixes: 844e7492ee ("regulator: da9062: add of_map_mode support for bucks")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20191122045154.802-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
$ sed -e 's/^ /\t/' -i */Kconfig
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20191120133949.13996-1-krzk@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Tell the regulator framework to retrieve regulator init
data from the 'regulator' subnode, or from the parent mfd
device's platform data.
Example:
i2c0 {
tps61052@33 {
compatible = "ti,tps61052";
reg = <0x33>;
regulator {
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-always-on;
};
};
};
Tree: next-20191118
Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com>
Link: https://lore.kernel.org/r/20191119154611.29625-3-TheSven73@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Fixes coccicheck warning:
drivers/regulator/vexpress-regulator.c:78:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Link: https://lore.kernel.org/r/1574074762-34629-1-git-send-email-zhengbin13@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch adds of_map_mode support for bucks to set regulator modes
from within regulator framework.
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Christian Hemp <c.hemp@phytec.de>
Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Link: https://lore.kernel.org/r/1573652416-9848-3-git-send-email-chf.fritz@googlemail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch refactors buck modes into a header file so that device trees
can make use of these mode constants.
The new header filename uses da9063 because DA9063 was the earlier chip
and its driver code will want updating at some point in a similar manner.
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Link: https://lore.kernel.org/r/1573652416-9848-2-git-send-email-chf.fritz@googlemail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Boot-on regulators are always kept on because their use_count value
is now incremented at boot time and never cleaned.
Only increment count value for alway-on regulators.
regulator_late_cleanup() is now able to power off boot-on regulators
when unused.
Fixes: 05f224ca66 ("regulator: core: Clean enabling always-on regulators + their supplies")
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Link: https://lore.kernel.org/r/20191113102737.27831-1-p.paillet@st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
device_link_add() might not always succeed depending on the type of
device link and the rest of the dependencies in the system. If
device_link_add() didn't succeed, then we shouldn't try to remove the
link later on as it might remove a link someone else created.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20191115000438.45970-1-saravanak@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The USB regulator was removed for AB8500 in
commit 41a06aa738 ("regulator: ab8500: Remove USB regulator").
It was then added for AB8505 in
commit 547f384f33 ("regulator: ab8500: add support for ab8505").
However, there was never an entry added for it in
ab8505_regulator_match. This causes all regulators after it
to be initialized with the wrong device tree data, eventually
leading to an out-of-bounds array read.
Given that it is not used anywhere in the kernel, it seems
likely that similar arguments against supporting it exist for
AB8505 (it is controlled by hardware).
Therefore, simply remove it like for AB8500 instead of adding
an entry in ab8505_regulator_match.
Fixes: 547f384f33 ("regulator: ab8500: add support for ab8505")
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20191106173125.14496-1-stephan@gerhold.net
Signed-off-by: Mark Brown <broonie@kernel.org>
Depends on board design, the gpio controlling regulator may
connects with a big capacitance. When need off, it takes some time
to let the regulator to be truly off. If not add enough delay, the
regulator might have always been on, so introduce off-on-delay to
handle such case.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1572311875-22880-3-git-send-email-peng.fan@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch fixes memory leak which should happen if regulator's coupling
fails to initialize.
Fixes: d8ca7d184b ("regulator: core: Introduce API for regulators coupling customization")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20191025002240.25288-1-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
There are a few core fixes here around error handling and handling if
suspend mode configuration and some driver specific fixes here but the
most important change is the fix to the fixed-regulator DT schema
conversion introduced during the last merge window. That fixes one of
the last two errors preventing successful execution of "make dt_binding_check"
which will be enourmously helpful for DT schema development.
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Merge tag 'regulator-fix-v5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"There are a few core fixes here around error handling and handling if
suspend mode configuration and some driver specific fixes here but the
most important change is the fix to the fixed-regulator DT schema
conversion introduced during the last merge window.
That fixes one of the last two errors preventing successful execution
of "make dt_binding_check" which will be enormously helpful for DT
schema development"
* tag 'regulator-fix-v5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: qcom-rpmh: Fix PMIC5 BoB min voltage
regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized
regulator: lochnagar: Add on_off_delay for VDDCORE
regulator: ti-abb: Fix timeout in ti_abb_wait_txdone/ti_abb_clear_all_txdone
regulator: da9062: fix suspend_enable/disable preparation
dt-bindings: fixed-regulator: fix compatible enum
regulator: fixed: Prevent NULL pointer dereference when !CONFIG_OF
regulator: core: make regulator_register() EPROBE_DEFER aware
regulator: of: fix suspend-min/max-voltage parsing
The bd70528 regulator driver is probed by MFD driver. Add MODULE_ALIAS
in order to allow udev to load the module when MFD sub-device cell for
regulators is added.
Fixes: 99ea37bd1e ("regulator: bd70528: Support ROHM BD70528 regulator block")
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/20191023121452.GA1812@localhost.localdomain
Signed-off-by: Mark Brown <broonie@kernel.org>
The sleep flag bit decides the mode for BUCK_MODE_MANUAL case, simplify
the logic as the result is the same.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20191007115009.25672-2-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The implement is exactly the same as rk808_set_suspend_voltage, so just
use rk808_set_suspend_voltage instead.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20191008010628.8513-3-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
These regulator_ops variables never need to be modified, make them const so
compiler can put them to .rodata.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20191008010628.8513-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
gpiod_get_from_of_node() is being retired in favor of
fwnode_gpiod_get_index(), that behaves similar to gpiod_get_index(),
but can work with arbitrary firmware node. It will also be able to
support secondary software nodes.
Let's switch this driver over.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20191004231017.130290-8-dmitry.torokhov@gmail.com
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
devm_fwnode_get_index_gpiod_from_child() is going away as the name is
too unwieldy, let's switch to using the new devm_fwnode_gpiod_get().
Note that we no longer need to check for NULL as devm_fwnode_gpiod_get()
will return -ENOENT if GPIO is missing.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20191004231017.130290-7-dmitry.torokhov@gmail.com
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
devm_gpiod_get_from_of_node() is being retired in favor of
devm_fwnode_gpiod_get_index(), that behaves similar to
devm_gpiod_get_index(), but can work with arbitrary firmware node. It
will also be able to support secondary software nodes.
Let's switch this driver over.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20191004231017.130290-6-dmitry.torokhov@gmail.com
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
devm_gpiod_get_from_of_node() is being retired in favor of
devm_fwnode_gpiod_get_index(), that behaves similar to
devm_gpiod_get_index(), but can work with arbitrary firmware node. It
will also be able to support secondary software nodes.
Let's switch this driver over.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20191004231017.130290-5-dmitry.torokhov@gmail.com
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
devm_gpiod_get_from_of_node() is being retired in favor of
devm_fwnode_gpiod_get_index(), that behaves similar to
devm_gpiod_get_index(), but can work with arbitrary firmware node. It
will also be able to support secondary software nodes.
Let's switch this driver over.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20191004231017.130290-4-dmitry.torokhov@gmail.com
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
devm_gpiod_get_from_of_node() is being retired in favor of
[devm_]fwnode_gpiod_get_index(), that behaves similar to
devm_gpiod_get_index(), but can work with arbitrary firmware node. It
will also be able to support secondary software nodes.
Let's switch this driver over.
Note that now that we have a good non-devm API for getting GPIO from
arbitrary firmware node, there is no reason to use devm API here as
regulator core takes care of managing lifetime of "enable" GPIO and we
were immediately detaching requested GPIO from devm anyway.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20191004231017.130290-3-dmitry.torokhov@gmail.com
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
devm_gpiod_get_from_of_node() is being retired in favor of
devm_fwnode_gpiod_get_index(), that behaves similar to
devm_gpiod_get_index(), but can work with arbitrary firmware node. It
will also be able to support secondary software nodes.
Let's switch this driver over.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20191004231017.130290-2-dmitry.torokhov@gmail.com
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Only the desc field is really used, so use struct regulator_desc instead.
Then struct pbias_regulator_data can be removed.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20191007114320.20977-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
It's more straightforward to use for statement here.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Steve Twiss <stwiss.opensource@diasemi.com>
Link: https://lore.kernel.org/r/20191007115009.25672-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Inside function max8907_regulator_probe(), variable val could
be uninitialized if regmap_read() fails. However, val is used
later in the if statement to decide the content written to
"pmic", which is potentially unsafe.
Signed-off-by: Yizhuo <yzhai003@ucr.edu>
Link: https://lore.kernel.org/r/20191003175813.16415-1-yzhai003@ucr.edu
Signed-off-by: Mark Brown <broonie@kernel.org>
In function pfuze100_regulator_probe(), variable "val" could be
initialized if regmap_read() fails. However, "val" is used to
decide the control flow later in the if statement, which is
potentially unsafe.
Signed-off-by: Yizhuo <yzhai003@ucr.edu>
Link: https://lore.kernel.org/r/20190929170957.14775-1-yzhai003@ucr.edu
Signed-off-by: Mark Brown <broonie@kernel.org>
The VDDCORE regulator takes a good length of time to discharge down, so
add an on_off_delay to ensure DCVDD is removed before it is powered on
again.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20191001132017.1785-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/regulator/pcap-regulator.c:89:27: warning:
SW3_table defined but not used [-Wunused-const-variable=]
It is never used, so can be removed.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190928085540.45332-1-yuehaibing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The sleep flag bit decides the mode for BUCK_MODE_MANUAL case, simplify
the logic as the result is the same.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20190926055128.23434-2-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This Power IC is used in combination with various PMIC combos,
generally found on boards with MSM8992, MSM8994, MSM8996,
MSM8956, MSM8976 and others, usually at address 0x5 on the SPMI
bus, and its usual usage is to provide power to the GPU and/or
to the CPU clusters (APC0/APC1).
Signed-off-by: Angelo G. Del Regno <kholk11@gmail.com>
Link: https://lore.kernel.org/r/20190921095043.62593-6-kholk11@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The PM8950 provides 6 SMPS regulators, of which 5 HFSMPS
and one FTSMPS2.5 (s5), and 23 LDOs.
Add these to the RPM regulator driver.
Signed-off-by: Angelo G. Del Regno <kholk11@gmail.com>
Link: https://lore.kernel.org/r/20190921095043.62593-4-kholk11@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The PM8950 has 5 HFSMPS, 1 FTSMPS2.5 (s5, controlling APC voltage)
and 23 LDO regulators.
Add the configuration for this chip.
Signed-off-by: Angelo G. Del Regno <kholk11@gmail.com>
Link: https://lore.kernel.org/r/20190921095043.62593-3-kholk11@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
ti_abb_wait_txdone() may return -ETIMEDOUT when ti_abb_check_txdone()
returns true in the latest iteration of the while loop because the timeout
value is abb->settling_time + 1. Similarly, ti_abb_clear_all_txdone() may
return -ETIMEDOUT when ti_abb_check_txdone() returns false in the latest
iteration of the while loop. Fix it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20190929095848.21960-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Currently the suspend reg_field maps to the pmic voltage selection bits
and is used during suspend_enabe/disable() and during get_mode(). This
seems to be wrong for both use cases.
Use case one (suspend_enabe/disable):
Those callbacks are used to mark a regulator device as enabled/disabled
during suspend. Marking the regulator enabled during suspend is done by
the LDOx_CONF/BUCKx_CONF bit within the LDOx_CONT/BUCKx_CONT registers.
Setting this bit tells the DA9062 PMIC state machine to keep the
regulator on in POWERDOWN mode and switch to suspend voltage.
Use case two (get_mode):
The get_mode callback is used to retrieve the active mode state. Since
the regulator-setting-A is used for the active state and
regulator-setting-B for the suspend state there is no need to check
which regulator setting is active.
Fixes: 4068e5182a ("regulator: da9062: DA9062 regulator driver")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20190917124246.11732-2-m.felsch@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Use of_device_get_match_data which has NULL test for match before
dereference match->data. Add NULL test for drvtype so it still works
for fixed_voltage_ops when !CONFIG_OF.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Philippe Schenker <philippe.schenker@toradex.com>
Link: https://lore.kernel.org/r/20190922022928.28355-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Merge tag 'leds-for-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
Pull LED updates from Jacek Anaszewski:
"In this cycle we've finally managed to contribute the patch set
sorting out LED naming issues. Besides that there are many changes
scattered among various LED class drivers and triggers.
LED naming related improvements:
- add new 'function' and 'color' fwnode properties and deprecate
'label' property which has been frequently abused for conveying
vendor specific names that have been available in sysfs anyway
- introduce a set of standard LED_FUNCTION* definitions
- introduce a set of standard LED_COLOR_ID* definitions
- add a new {devm_}led_classdev_register_ext() API with the
capability of automatic LED name composition basing on the
properties available in the passed fwnode; the function is
backwards compatible in a sense that it uses 'label' data, if
present in the fwnode, for creating LED name
- add tools/leds/get_led_device_info.sh script for retrieving LED
vendor, product and bus names, if applicable; it also performs
basic validation of an LED name
- update following drivers and their DT bindings to use the new LED
registration API:
- leds-an30259a, leds-gpio, leds-as3645a, leds-aat1290, leds-cr0014114,
leds-lm3601x, leds-lm3692x, leds-lp8860, leds-lt3593, leds-sc27xx-blt
Other LED class improvements:
- replace {devm_}led_classdev_register() macros with inlines
- allow to call led_classdev_unregister() unconditionally
- switch to use fwnode instead of be stuck with OF one
LED triggers improvements:
- led-triggers:
- fix dereferencing of null pointer
- fix a memory leak bug
- ledtrig-gpio:
- GPIO 0 is valid
Drop superseeded apu2/3 support from leds-apu since for apu2+ a newer,
more complete driver exists, based on a generic driver for the AMD
SOCs gpio-controller, supporting LEDs as well other devices:
- drop profile field from priv data
- drop iosize field from priv data
- drop enum_apu_led_platform_types
- drop superseeded apu2/3 led support
- add pr_fmt prefix for better log output
- fix error message on probing failure
Other misc fixes and improvements to existing LED class drivers:
- leds-ns2, leds-max77650:
- add of_node_put() before return
- leds-pwm, leds-is31fl32xx:
- use struct_size() helper
- leds-lm3697, leds-lm36274, leds-lm3532:
- switch to use fwnode_property_count_uXX()
- leds-lm3532:
- fix brightness control for i2c mode
- change the define for the fs current register
- fixes for the driver for stability
- add full scale current configuration
- dt: Add property for full scale current.
- avoid potentially unpaired regulator calls
- move static keyword to the front of declarations
- fix optional led-max-microamp prop error handling
- leds-max77650:
- add of_node_put() before return
- add MODULE_ALIAS()
- Switch to fwnode property API
- leds-as3645a:
- fix misuse of strlcpy
- leds-netxbig:
- add of_node_put() in netxbig_leds_get_of_pdata()
- remove legacy board-file support
- leds-is31fl319x:
- simplify getting the adapter of a client
- leds-ti-lmu-common:
- fix coccinelle issue
- move static keyword to the front of declaration
- leds-syscon:
- use resource managed variant of device register
- leds-ktd2692:
- fix a typo in the name of a constant
- leds-lp5562:
- allow firmware files up to the maximum length
- leds-an30259a:
- fix typo
- leds-pca953x:
- include the right header"
* tag 'leds-for-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: (72 commits)
leds: lm3532: Fix optional led-max-microamp prop error handling
led: triggers: Fix dereferencing of null pointer
leds: ti-lmu-common: Move static keyword to the front of declaration
leds: lm3532: Move static keyword to the front of declarations
leds: trigger: gpio: GPIO 0 is valid
leds: pwm: Use struct_size() helper
leds: is31fl32xx: Use struct_size() helper
leds: ti-lmu-common: Fix coccinelle issue in TI LMU
leds: lm3532: Avoid potentially unpaired regulator calls
leds: syscon: Use resource managed variant of device register
leds: Replace {devm_}led_classdev_register() macros with inlines
leds: Allow to call led_classdev_unregister() unconditionally
leds: lm3532: Add full scale current configuration
dt: lm3532: Add property for full scale current.
leds: lm3532: Fixes for the driver for stability
leds: lm3532: Change the define for the fs current register
leds: lm3532: Fix brightness control for i2c mode
leds: Switch to use fwnode instead of be stuck with OF one
leds: max77650: Switch to fwnode property API
led: triggers: Fix a memory leak bug
...
Sometimes it can happen that the regulator_of_get_init_data() can't
retrieve the config due to a not probed device the regulator depends on.
Fix that by checking the return value of of_parse_cb() and return
EPROBE_DEFER in such cases.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20190917154021.14693-4-m.felsch@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Currently the regulator-suspend-min/max-microvolt must be within the
root regulator node but the dt-bindings specifies it as subnode
properties for the regulator-state-[mem/disk/standby] node. The only DT
using this bindings currently is the at91-sama5d2_xplained.dts and this
DT uses it correctly. I don't know if it isn't tested but it can't work
without this fix.
Fixes: f7efad10b5 ("regulator: add PM suspend and resume hooks")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20190917154021.14693-3-m.felsch@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
regulator_uV_show() is missing error handling if regulator_get_voltage_rdev()
returns negative values. Instead it prints the errno as a string, e.g. -EINVAL
as "-22" which could be interpreted as -22 µV.
We also do not need to hold the lock while converting the integer to a string.
Reported-by: Adam Ford <aford173@gmail.com>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Tested-by: Adam Ford <aford173@gmail.com>
Link: https://lore.kernel.org/r/f37f2a1276efcb34cf3b7f1a25481175be048806.1568143348.git.hns@goldelico.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This fixes 11da04af0d, as devm_gpiod_get_from_of_node() does
not do translation "con-id" -> "con-id-gpios" that our bindings expects,
and therefore it was wrong to change connection ID to be simply "enable"
when moving to using devm_gpiod_get_from_of_node().
Fixes: 11da04af0d ("regulator: da9211: Pass descriptors instead of GPIO numbers")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20190910170246.GA56792@dtor-ws
Signed-off-by: Mark Brown <broonie@kernel.org>
This fixes 96392c3d8c, as devm_gpiod_get_from_of_node() does
not do translation "con-id" -> "con-id-gpios" that our bindings expects,
and therefore it was wrong to change connection ID to be simply
"maxim,ena" when moving to using devm_gpiod_get_from_of_node().
Fixes: 96392c3d8c ("regulator: max77686: Pass descriptor instead of GPIO number")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20190910170050.GA55530@dtor-ws
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit adds the possibility to choose the compatible
"regulator-fixed-clock" in devicetree.
This is a special regulator-fixed that has to have a clock, from which
the regulator gets switched on and off.
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Link: https://lore.kernel.org/r/20190910062103.39641-2-philippe.schenker@toradex.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The value under 's2mps11->ext_control_gpiod[i]' is assigned to local
variable and used in probe in one place before. Use it consistently
later so code will be easier to read.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20190909155723.24734-1-krzk@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Use rdev->regmap/&rdev->dev instead of lp87565->regmap/lp87565->dev.
In additional, the lp87565->dev actually is the parent mfd device,
so the dev_err message is misleading here with lp87565->dev.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20190908035720.17748-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The CS GPIO line is clearly optional GPIO (and marked as such in the
binding document) and we should handle it accordingly. The current code
treats all errors as meaning that there is no GPIO defined, which is
wrong, as it does not handle deferrals raised by the underlying code
properly, nor does it recognize non-existing GPIO from any other
initialization error.
As far as I can see the only reason the driver, unlike all others,
is using OF-specific devm_gpiod_get_from_of_node() so that it can
assign a custom label to the selected GPIO line. Given that noone else
needs that, it should not be doing that either.
Let's switch to using more appropriate devm_gpiod_get_optional().
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20190904214200.GA66118@dtor-ws
Signed-off-by: Mark Brown <broonie@kernel.org>
Don't populate the array en_mask on the stack but instead make it
static const. Makes the object code smaller by 87 bytes.
Before:
text data bss dec hex filename
12967 3408 0 16375 3ff7 drivers/regulator/lp8788-ldo.o
After:
text data bss dec hex filename
12816 3472 0 16288 3fa0 drivers/regulator/lp8788-ldo.o
(gcc version 9.2.1, amd64)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190906130632.6709-1-colin.king@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
In case of a missing (optional) gpio don't fall through up to
"ti,active-discharge-time-us" due to
devm_fwnode_get_index_gpiod_from_child() returning NULL (since
gpiod_get_from_of_node() returned NULL) but rather indicate success as
intended.
This makes the driver probe correctly when e.g. only the enable gpio is
given.
Signed-off-by: Guido Günther <agx@sigxcpu.org>
Link: https://lore.kernel.org/r/363bd50cc7c60daa57d614a341d1fd649f05194c.1567625660.git.agx@sigxcpu.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The kernel has no way of knowing when we have finished instantiating
drivers, between deferred probe and systems that build key drivers as
modules we might be doing this long after userspace has booted. This has
always been a bit of an issue with regulator_init_complete since it can
power off hardware that's not had it's driver loaded which can result in
user visible effects, the main case is powering off displays. Practically
speaking it's not been an issue in real systems since most systems that
use the regulator API are embedded and build in key drivers anyway but
with Arm laptops coming on the market it's becoming more of an issue so
let's do something about it.
In the absence of any better idea just defer the powering off for 30s
after late_initcall(), this is obviously a hack but it should mask the
issue for now and it's no more arbitrary than late_initcall() itself.
Ideally we'd have some heuristics to detect if we're on an affected
system and tune or skip the delay appropriately, and there may be some
need for a command line option to be added.
Link: https://lore.kernel.org/r/20190904124250.25844-1-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Tested-by: Lee Jones <lee.jones@linaro.org>
Cc: stable@vger.kernel.org
There are many regulator consumers who - before using the regulator
bulk functions - set the supply names in regulator_bulk_data using
a for loop.
Let's provide a simple helper in the consumer API that allows users
to do the same with a single function call.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20190830071740.4267-2-brgl@bgdev.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
The mt6358 driver was merged in error, it depends on an existing MFD
rather than a newly added one and needs updates to that driver. Disable
the build until those are merged.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mark Brown <broonie@kernel.org>
The MT6358 is a regulator found on boards based on MediaTek MT8183 and
probably other SoCs. It is a so called pmic and connects as a slave to
SoC using SPI, wrapped inside the pmic-wrapper.
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Link: https://lore.kernel.org/r/1566531931-9772-8-git-send-email-hsin-hsiung.wang@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The differences between SY8824C and SY20278 are different regs
for mode/enable.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20190827163830.2c94f29b@xhacker.debian
Signed-off-by: Mark Brown <broonie@kernel.org>
The differences between SY8824C and SY20276 are different vsel_min,
vsel_step, vsel_count and regs for mode/enable.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20190827163721.1947f7a0@xhacker.debian
Signed-off-by: Mark Brown <broonie@kernel.org>
SY8824C is an I2C attached single output regulator made by Silergy Corp,
which is used on several Synaptics berlin platforms to control the
power supply of the ARM cores.
Add a driver for it.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20190827163418.1a32fc48@xhacker.debian
Signed-off-by: Mark Brown <broonie@kernel.org>
In function of_get_child_regulator(), the loop for_each_child_of_node()
contains two mid-loop return statements, each preceded by a statement
putting child. In order to reduce this repetition, create a new label,
err_node_put, that puts child and then returns the required value;
edit the mid-loop return blocks to instead go to this new label.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190815053704.32156-1-nishkadg.linux@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Variable ret is initialized to a value that is never read before
a return statement and hence can be removed. Remove it.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190813133114.14931-1-colin.king@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
_opp_supported_by_regulators() wrongly ignored errors from
regulator_is_supported_voltage(), so it considered errors as
success. Since
commit 4982094451 ("regulator: core: simplify return value on suported_voltage")
regulator_is_supported_voltage() returns a real boolean, so
errors make _opp_supported_by_regulators() return false.
That reveals a problem with the declaration of the VDD1/2
regulators on twl4030.
The VDD1/VDD2 regulators on twl4030 are neither defined with
voltage lists nor with the continuous flag set, so
regulator_is_supported_voltage() returns false and an error
before above mentioned commit (which was considered success)
The result is that after the above mentioned commit cpufreq
does not work properly e.g. dm3730.
[ 2.490997] core: _opp_supported_by_regulators: OPP minuV: 1012500 maxuV: 1012500, not supported by regulator
[ 2.501617] cpu cpu0: _opp_add: OPP not supported by regulators (300000000)
[ 2.509246] core: _opp_supported_by_regulators: OPP minuV: 1200000 maxuV: 1200000, not supported by regulator
[ 2.519775] cpu cpu0: _opp_add: OPP not supported by regulators (600000000)
[ 2.527313] core: _opp_supported_by_regulators: OPP minuV: 1325000 maxuV: 1325000, not supported by regulator
[ 2.537750] cpu cpu0: _opp_add: OPP not supported by regulators (800000000)
The patch fixes declaration of VDD1/2 regulators by
adding proper voltage lists.
Fixes: 4982094451 ("regulator: core: simplify return value on suported_voltage")
Cc: stable@vger.kernel.org
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Tested-by: Adam Ford <aford173@gmail.com> #logicpd-torpedo-37xx-devkit
Link: https://lore.kernel.org/r/20190814214319.24087-1-andreas@kemnade.info
Signed-off-by: Mark Brown <broonie@kernel.org>
During reset the VMMC regulator doesn't reach 0V and only drops to
1.8V, furthermore the pulse width is under 200us whereas the SD
specification expect 1ms.
The WR_S bit allows the TWL6030 to no reset at all the VMMC during warm
reset and keep the current voltage. Thanks to this workaround the SD
card doesn't reach a undefined reset stage.
Actually this behavior is available for all the LDO regulator, so the
driver will also allow to use it with any of these regulator.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/20190725094542.16547-4-gregory.clement@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
It helps to keep sorted order for compatibles, so sort them
Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20190809073616.1235-2-vkoul@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Building without CONFIG_POWER_SUPPLY will fail:
drivers/regulator/act8865-regulator.o: In function `act8865_pmic_probe':
act8865-regulator.c:(.text+0x357): undefined reference to `devm_power_supply_register'
drivers/regulator/act8865-regulator.o: In function `act8600_charger_get_property':
act8865-regulator.c:(.text+0x3f1): undefined reference to `power_supply_get_drvdata'
Add POWER_SUPPLY dependency to Kconfig.
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 2d09a79bf6 ("regulator: act8865: Add support for act8600 charger")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190807133822.67124-1-yuehaibing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The devm_gpiod_get_from_of_node() function never returns NULL, it
returns error pointers on error.
Fixes: a867bde3dd ("regulator: slg51000: add slg51000 regulator driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20190808103335.GD30506@mwanda
Signed-off-by: Mark Brown <broonie@kernel.org>
Each iteration of for_each_child_of_node puts the previous node, but in
the case of a return from the middle of the loop, there is no put, thus
causing a memory leak. Hence add an of_node_put before the return in
two places.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190804162023.5673-1-nishkadg.linux@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.
// <smpl>
@@
expression ret;
struct platform_device *E;
@@
ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);
if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>
While we're here, remove braces on if statements that only have one
statement (manually).
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20190730181557.90391-38-swboyd@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The local variable search in regulator_of_get_init_node takes the value
returned by either of_get_child_by_name or of_node_get, both of which
get a node. If this node is not put before returning, it could cause a
memory leak. Hence put search before a mid-loop return statement.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190724083231.10276-1-nishkadg.linux@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/regulator/act8865-regulator.c:447:8-14: WARNING: PTR_ERR_OR_ZERO can be used
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Generated by: scripts/coccinelle/api/ptr_ret.cocci
Fixes: 2d09a79bf6 ("regulator: act8865: Add support for act8600 charger")
CC: Maarten ter Huurne <maarten@treewalker.org>
Signed-off-by: kbuild test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20190724092236.witxtfmubun25l2t@1905cc33b6dd
Signed-off-by: Mark Brown <broonie@kernel.org>
The "ti,lp87565" compatible string is still in of_lp87565_match_table,
but current code will return -EINVAL because lp87565->dev_type is unknown.
This was working in earlier kernel versions, so fix it.
Fixes: 7ee63bd747 ("regulator: lp87565: Add 4-phase lp87561 regulator support")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20190711113517.26077-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Setting .n_voltages = 1 and .fixed_uV is enough for fixed regulator,
remove the redundant .min_uV and .list_voltage settings.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Link: https://lore.kernel.org/r/20190723014102.25103-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This provides a way to monitor battery charge status via the power
supply subsystem.
Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20190723011418.29143-1-paul@crapouillou.net
Signed-off-by: Mark Brown <broonie@kernel.org>
According to the datasheet http://www.ti.com/lit/ds/symlink/lm36274.pdf:
Table 23. VPOS Bias Register Field Descriptions VPOS[5:0]:
VPOS voltage (50-mV steps): VPOS = 4 V + (Code × 50 mV), 6.5 V max
000000 = 4 V
000001 = 4.05 V
:
011110 = 5.5 V (Default)
:
110010 = 6.5 V
110011 to 111111 map to 6.5 V
So the LM36274_LDO_VSEL_MAX should be 0b110010 (0x32).
The valid selectors are 0 ... LM36274_LDO_VSEL_MAX, n_voltages should be
LM36274_LDO_VSEL_MAX + 1. Similarly, the n_voltages should be
LM36274_BOOST_VSEL_MAX + 1 for LM36274_BOOST.
Fixes: bff5e80715 ("regulator: lm363x: Add support for LM36274")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20190626132632.32629-2-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
According to the datasheet https://www.ti.com/lit/ds/symlink/lm3632a.pdf
Table 20. VPOS Bias Register Field Descriptions VPOS[5:0]
Sets the Positive Display Bias (LDO) Voltage (50 mV per step)
000000: 4 V
000001: 4.05 V
000010: 4.1 V
....................
011101: 5.45 V
011110: 5.5 V (Default)
011111: 5.55 V
....................
100111: 5.95 V
101000: 6 V
Note: Codes 101001 to 111111 map to 6 V
The LM3632_LDO_VSEL_MAX should be 0b101000 (0x28), so the maximum voltage
can match the datasheet.
Fixes: 3a8d1a73a0 ("regulator: add LM363X driver")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20190626132632.32629-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Refactoring of axp20x driver introduced a bug in AXP803's DCDC6
regulator definition. AXP803_DCDC6_1120mV_STEPS was obtained by
subtracting 0x47 and 0x33. This should be 0x14 (hex) and not 14
(dec).
Refactoring also carried over a bug in DCDC5 regulator definition.
Number of possible voltages must be for 1 bigger than maximum valid
voltage index, because 0 is also valid and it means lowest voltage.
Fixes: 1dbe0ccb06 ("regulator: axp20x-regulator: add support for AXP803")
Fixes: db4a555f7c ("regulator: axp20x: use defines for masks")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://lore.kernel.org/r/20190713090717.347-3-jernej.skrabec@siol.net
Signed-off-by: Mark Brown <broonie@kernel.org>
Refactoring of the driver introduced bugs in AXP806's DCDCA and DCDCD
regulator definitions.
In DCDCA case, AXP806_DCDCA_1120mV_STEPS was obtained by subtracting
0x47 and 0x33. This should be 0x14 (hex) and not 14 (dec).
In DCDCD case, axp806_dcdcd_ranges[] contains two ranges with same
start and end macros, which is clearly wrong. Second range starts at
1.6V so it should use AXP806_DCDCD_1600mV_[START|END] macros. They are
already defined but unused.
Fixes: db4a555f7c ("regulator: axp20x: use defines for masks")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://lore.kernel.org/r/20190713090717.347-2-jernej.skrabec@siol.net
Signed-off-by: Mark Brown <broonie@kernel.org>
- Set 'struct device' fwnode when registering a new device
- New Drivers
- Add support for ROHM BD70528 PMIC
- New Device Support
- Add support for LP87561 4-Phase Regulator to TI LP87565 PMIC
- Add support for RK809 and RK817 to Rockchip RK808
- Add support for Lid Angle to ChromeOS core
- Add support for CS47L15 CODEC to Madera core
- Add support for CS47L92 CODEC to Madera core
- Add support for ChromeOS (legacy) Accelerometers in ChromeOS core
- Add support for Add Intel Elkhart Lake PCH to Intel LPSS
- New Functionality
- Provide regulator supply information when registering; madera-core
- Additional Device Tree support; lp87565, madera, cros-ec, rohm,bd71837-pmic
- Allow over-riding power button press via Device Tree; rohm-bd718x7
- Differentiate between running processors; cros_ec_dev
- Fix-ups
- Big header file update; cros_ec_commands.h
- Split header per-subsystem; rohm-bd718x7
- Remove superfluous code; menelaus, cs5535-mfd, cs47lXX-tables
- Trivial; sorting, coding style; intel-lpss-pci
- Only remove Power Off functionality if set locally; rk808
- Make use for Power Off Prepare(); rk808
- Fix spelling mistake in header guards; stmfx
- Properly free IDA resources
- SPDX fixups; cs47lXX-tables, madera
- Error path fixups; hi655x-pmic
- Bug Fixes
- Add missing break in case() statement
- Repair undefined behaviour when not initialising variables; arizona-core, madera-core
- Fix reference to Device Tree documentation; madera
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Merge tag 'mfd-next-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Core Frameworks:
- Set 'struct device' fwnode when registering a new device
New Drivers:
- Add support for ROHM BD70528 PMIC
New Device Support:
- Add support for LP87561 4-Phase Regulator to TI LP87565 PMIC
- Add support for RK809 and RK817 to Rockchip RK808
- Add support for Lid Angle to ChromeOS core
- Add support for CS47L15 CODEC to Madera core
- Add support for CS47L92 CODEC to Madera core
- Add support for ChromeOS (legacy) Accelerometers in ChromeOS core
- Add support for Add Intel Elkhart Lake PCH to Intel LPSS
New Functionality:
- Provide regulator supply information when registering; madera-core
- Additional Device Tree support; lp87565, madera, cros-ec, rohm,bd71837-pmic
- Allow over-riding power button press via Device Tree; rohm-bd718x7
- Differentiate between running processors; cros_ec_dev
Fix-ups:
- Big header file update; cros_ec_commands.h
- Split header per-subsystem; rohm-bd718x7
- Remove superfluous code; menelaus, cs5535-mfd, cs47lXX-tables
- Trivial; sorting, coding style; intel-lpss-pci
- Only remove Power Off functionality if set locally; rk808
- Make use for Power Off Prepare(); rk808
- Fix spelling mistake in header guards; stmfx
- Properly free IDA resources
- SPDX fixups; cs47lXX-tables, madera
- Error path fixups; hi655x-pmic
Bug Fixes:
- Add missing break in case() statement
- Repair undefined behaviour when not initialising variables; arizona-core, madera-core
- Fix reference to Device Tree documentation; madera"
* tag 'mfd-next-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (45 commits)
mfd: hi655x-pmic: Fix missing return value check for devm_regmap_init_mmio_clk
mfd: madera: Fixup SPDX headers
mfd: madera: Remove some unused registers and fix some defaults
mfd: intel-lpss: Release IDA resources
mfd: intel-lpss: Add Intel Elkhart Lake PCH PCI IDs
mfd: cs5535-mfd: Remove ifdef OLPC noise
mfd: stmfx: Fix macro definition spelling
dt-bindings: mfd: Add link to ROHM BD71847 Datasheet
MAINAINERS: Swap words in INTEL PMIC MULTIFUNCTION DEVICE DRIVERS
mfd: cros_ec_dev: Register cros_ec_accel_legacy driver as a subdevice
mfd: rk808: Prepare rk805 for poweroff
mfd: rk808: Check pm_power_off pointer
mfd: cros_ec: differentiate SCP from EC by feature bit
dt-bindings: Add binding for cros-ec-rpmsg
mfd: madera: Add Madera core support for CS47L92
mfd: madera: Add Madera core support for CS47L15
mfd: madera: Update DT bindings to add additional CODECs
mfd: madera: Add supply mapping for MICVDD
mfd: madera: Fix potential uninitialised use of variable
mfd: madera: Fix bad reference to pinctrl.txt file
...
- A fair pile of RST conversions, many from Mauro. These create more
than the usual number of simple but annoying merge conflicts with other
trees, unfortunately. He has a lot more of these waiting on the wings
that, I think, will go to you directly later on.
- A new document on how to use merges and rebases in kernel repos, and one
on Spectre vulnerabilities.
- Various improvements to the build system, including automatic markup of
function() references because some people, for reasons I will never
understand, were of the opinion that :c:func:``function()`` is
unattractive and not fun to type.
- We now recommend using sphinx 1.7, but still support back to 1.4.
- Lots of smaller improvements, warning fixes, typo fixes, etc.
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Merge tag 'docs-5.3' of git://git.lwn.net/linux
Pull Documentation updates from Jonathan Corbet:
"It's been a relatively busy cycle for docs:
- A fair pile of RST conversions, many from Mauro. These create more
than the usual number of simple but annoying merge conflicts with
other trees, unfortunately. He has a lot more of these waiting on
the wings that, I think, will go to you directly later on.
- A new document on how to use merges and rebases in kernel repos,
and one on Spectre vulnerabilities.
- Various improvements to the build system, including automatic
markup of function() references because some people, for reasons I
will never understand, were of the opinion that
:c:func:``function()`` is unattractive and not fun to type.
- We now recommend using sphinx 1.7, but still support back to 1.4.
- Lots of smaller improvements, warning fixes, typo fixes, etc"
* tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits)
docs: automarkup.py: ignore exceptions when seeking for xrefs
docs: Move binderfs to admin-guide
Disable Sphinx SmartyPants in HTML output
doc: RCU callback locks need only _bh, not necessarily _irq
docs: format kernel-parameters -- as code
Doc : doc-guide : Fix a typo
platform: x86: get rid of a non-existent document
Add the RCU docs to the core-api manual
Documentation: RCU: Add TOC tree hooks
Documentation: RCU: Rename txt files to rst
Documentation: RCU: Convert RCU UP systems to reST
Documentation: RCU: Convert RCU linked list to reST
Documentation: RCU: Convert RCU basic concepts to reST
docs: filesystems: Remove uneeded .rst extension on toctables
scripts/sphinx-pre-install: fix out-of-tree build
docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/
Documentation: PGP: update for newer HW devices
Documentation: Add section about CPU vulnerabilities for Spectre
Documentation: platform: Delete x86-laptop-drivers.txt
docs: Note that :c:func: should no longer be used
...
A couple of new features in the core, the most interesting one
being support for complex regulator coupling configurations
initially targeted at nVidia Tegra SoCs, and some new drivers but
otherwise quite a quiet release.
- Core support for gradual ramping of voltages for devices that
can't manage large changes in hardware from Bartosz Golaszewski.
- Core support for systems that have complex coupling requirements
best described via code, contributed by Dmitry Osipenko.
- New drivers for Dialog SLG51000, Qualcomm PM8005 and ST
Microelectronics STM32-Booster.
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Merge tag 'regulator-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"A couple of new features in the core, the most interesting one being
support for complex regulator coupling configurations initially
targeted at nVidia Tegra SoCs, and some new drivers but otherwise
quite a quiet release.
Summary:
- Core support for gradual ramping of voltages for devices that can't
manage large changes in hardware from Bartosz Golaszewski.
- Core support for systems that have complex coupling requirements
best described via code, contributed by Dmitry Osipenko.
- New drivers for Dialog SLG51000, Qualcomm PM8005 and ST
Microelectronics STM32-Booster"
* tag 'regulator-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (52 commits)
regulator: max77650: use vsel_step
regulator: implement selector stepping
regulator: max77650: add MODULE_ALIAS()
regulator: max77620: remove redundant assignment to variable ret
dt-bindings: regulator: add support for the stm32-booster
regulator: add support for the stm32-booster
regulator: s2mps11: Adjust supported buck voltages to real values
regulator: s2mps11: Fix buck7 and buck8 wrong voltages
gpio: Fix return value mismatch of function gpiod_get_from_of_node()
regulator: core: Expose some of core functions needed by couplers
regulator: core: Introduce API for regulators coupling customization
regulator: s2mps11: Add support for disabling S2MPS11 regulators in suspend
regulator: s2mps11: Reduce number of rdev_get_id() calls
regulator: qcom_spmi: Do NULL check for lvs
regulator: qcom_spmi: Fix math of spmi_regulator_set_voltage_time_sel
regulator: da9061/62: Adjust LDO voltage selection minimum value
regulator: s2mps11: Fix ERR_PTR dereference on GPIO lookup failure
regulator: qcom_spmi: add PMS405 SPMI regulator
dt-bindings: qcom_spmi: Document pms405 support
arm64: dts: msm8998-mtp: Add pm8005_s1 regulator
...
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Merge tag 'leds-for-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
Pull LED updates from Jacek Anaszewski:
- Add a new LED common module for ti-lmu driver family
- Modify MFD ti-lmu bindings
- add ti,brightness-resolution
- add the ramp up/down property
- Add regulator support for LM36274 driver to lm363x-regulator.c
- New LED class drivers with DT bindings:
- leds-spi-byte
- leds-lm36274
- leds-lm3697 (move the support from MFD to LED subsystem)
- Simplify getting the I2C adapter of a client:
- leds-tca6507
- leds-pca955x
- Convert LED documentation to ReST
* tag 'leds-for-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
dt: leds-lm36274.txt: fix a broken reference to ti-lmu.txt
docs: leds: convert to ReST
leds: leds-tca6507: simplify getting the adapter of a client
leds: leds-pca955x: simplify getting the adapter of a client
leds: lm36274: Introduce the TI LM36274 LED driver
dt-bindings: leds: Add LED bindings for the LM36274
regulator: lm363x: Add support for LM36274
mfd: ti-lmu: Add LM36274 support to the ti-lmu
dt-bindings: mfd: Add lm36274 bindings to ti-lmu
leds: max77650: Remove set but not used variable 'parent'
leds: avoid flush_work in atomic context
leds: lm3697: Introduce the lm3697 driver
mfd: ti-lmu: Remove support for LM3697
dt-bindings: ti-lmu: Modify dt bindings for the LM3697
leds: TI LMU: Add common code for TI LMU devices
leds: spi-byte: add single byte SPI LED driver
dt-bindings: leds: Add binding for spi-byte LED.
dt-bindings: mfd: LMU: Add ti,brightness-resolution
dt-bindings: mfd: LMU: Add the ramp up/down property
Use the new vsel_step field in the regulator description to instruct
the regulator API on the required voltage ramping. Switch to using the
generic regmap helpers for voltage setting and remove the old set_voltage
callback that handcoded the selector stepping.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20190703161035.31808-3-brgl@bgdev.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
Some regulators require that the requested voltage be reached gradually
by setting all or some of the intermediate values. Implement a new field
in the regulator description struct that allows users to specify the
number of selectors by which the regulator API should step when ramping
the voltage up/down.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20190703161035.31808-2-brgl@bgdev.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
Define a MODULE_ALIAS() in the regulator sub-driver for max77650 so that
the appropriate module gets loaded together with the core mfd driver.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20190703084849.9668-1-brgl@bgdev.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
The variable ret is being initialized with a value that is never
read and it is being updated later with a new value. The
initialization is redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190703082009.18779-1-colin.king@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add support for the 3.3V booster regulator embedded in stm32h7 and stm32mp1
devices, that can be used to supply ADC analog input switches.
This regulator is supplied by vdda. It's controlled by using SYSCFG:
- STM32H7 has a unique register to set/clear the booster enable bit
- STM32MP1 has separate set and clear registers to configure it.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The driver was registering buck regulators with unsupported range of
voltages for S2MPS11 devices. Basically it assumed that all 256 values
are possible for a single 8-bit I2C register controlling buck's voltage.
This is not true, as datasheet describes subset of these which can be
used.
For example for buck[12346] the minimum voltage is 650 mV which
corresponds to register value of 0x8. The driver was however
registering regulator starting at 600 mV, so for a step of 6.25 mV this
gave the same result. However this allowed to try to configure
regulators to unsupported values.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
On S2MPS11 device, the buck7 and buck8 regulator voltages start at 750
mV, not 600 mV. Using wrong minimal value caused shifting of these
regulator values by 150 mV (e.g. buck7 usually configured to v1.35 V was
reported as 1.2 V).
On most of the boards these regulators are left in default state so this
was only affecting reported voltage. However if any driver wanted to
change them, then effectively it would set voltage 150 mV higher than
intended.
Cc: <stable@vger.kernel.org>
Fixes: cb74685ecb ("regulator: s2mps11: Add samsung s2mps11 regulator driver")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Currently the LP87565_DEVICE_TYPE_LP87561_Q1 case does not have a
break statement, causing it to fall through to a dev_err message.
Fix this by adding in the missing break statement.
Addresses-Coverity: ("Missing break in switch")
Fixes: 7ee63bd747 ("regulator: lp87565: Add 4-phase lp87561 regulator support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add support for the rk809 and rk817 regulator driver.
Their specifications are as follows：
1. The RK809 and RK809 consist of 5 DCDCs, 9 LDOs
and have the same registers for these components except dcdc5.
2. The dcdc5 is a boost dcdc for RK817 and is a buck for RK809.
3. The RK817 has one switch but The Rk809 has two.
The output voltages are configurable and are meant to supply power
to the main processor and other components.
Signed-off-by: Tony Xie <tony.xie@rock-chips.com>
Acked-by: Mark Brown <broonie@kernel.org>
[rebased on top of 5.2-rc1]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Split the bd718x7.h to ROHM common and bd718x7 specific parts
so that we do not need to add same things in every new ROHM
PMIC header. Please note that this change requires changes also
in bd718x7 sub-device drivers for regulators and clk.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
In case the requested gpio property is not found in the device tree, some
callers of gpiod_get_from_of_node() expect a return value of NULL, others
expect -ENOENT.
In particular devm_fwnode_get_index_gpiod_from_child() expects -ENOENT.
Currently it gets a NULL, which breaks the loop that tries all
gpio_suffixes. The result is that a gpio property is not found, even
though it is there.
This patch changes gpiod_get_from_of_node() to return -ENOENT instead
of NULL when the requested gpio property is not found in the device
tree. Additionally it modifies all calling functions to properly
evaluate the return value.
Another approach would be to leave the return value of
gpiod_get_from_of_node() as is and fix the bug in
devm_fwnode_get_index_gpiod_from_child(). Other callers would still need
to be reworked. The effort would be the same as with the chosen solution.
Signed-off-by: Georg Waibel <georg.waibel@sensor-technik.de>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Expose some of internal functions that are required for implementation of
customized regulator couplers.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Right now regulator core supports only one type of regulators coupling,
the "voltage max-spread" which keeps voltages of coupled regulators in a
given range from each other. A more sophisticated coupling may be required
in practice, one example is the NVIDIA Tegra SoCs which besides the
max-spreading have other restrictions that must be adhered. Introduce API
that allow platforms to provide their own customized coupling algorithms.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The driver supported turning off regulators in suspend only for S2MPS14
device. However this makes also sense for S2MPS11 and can reduce the
power consumption during suspend to RAM.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
