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: NWen 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.comSigned-off-by: NMark Brown <broonie@kernel.org>

-EINVAL is not a valid return value for .of_map_mode, return
REGULATOR_MODE_INVALID instead.

Fixes: 844e7492 ("regulator: da9062: add of_map_mode support for bucks")
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20191122045154.802-1-axel.lin@ingics.comSigned-off-by: NMark 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: NKrzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20191120133949.13996-1-krzk@kernel.orgSigned-off-by: NMark 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: NSven Van Asbroeck <TheSven73@gmail.com>
Link: https://lore.kernel.org/r/20191119154611.29625-3-TheSven73@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>

This driver currently requires platform data to specify the
operational mode and regulator init data (in case of regulator
mode).

Optionally specify the operational mode by looking at the name
of the devicetree child node.

Example: put chip in regulator mode:

i2c0 {
	tps61052@33 {
		compatible = "ti,tps61052";
		reg = <0x33>;

		regulator {
                            regulator-min-microvolt = <5000000>;
                            regulator-max-microvolt = <5000000>;
                            regulator-always-on;
		};
	};
};

Tree: linux-next
Signed-off-by: NSven Van Asbroeck <TheSven73@gmail.com>
Link: https://lore.kernel.org/r/20191119154611.29625-2-TheSven73@gmail.comSigned-off-by: NMark 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: NHulk Robot <hulkci@huawei.com>
Signed-off-by: Nzhengbin <zhengbin13@huawei.com>
Link: https://lore.kernel.org/r/1574074762-34629-1-git-send-email-zhengbin13@huawei.comSigned-off-by: NMark Brown <broonie@kernel.org>

This patch adds DT description of da9062 buck regulator modes.
Signed-off-by: NChristoph Fritz <chf.fritz@googlemail.com>
Link: https://lore.kernel.org/r/1573652416-9848-4-git-send-email-chf.fritz@googlemail.comSigned-off-by: NMark Brown <broonie@kernel.org>

This patch adds of_map_mode support for bucks to set regulator modes
from within regulator framework.
Signed-off-by: NChristoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: NChristian Hemp <c.hemp@phytec.de>
Signed-off-by: NStefan Riedmueller <s.riedmueller@phytec.de>
Link: https://lore.kernel.org/r/1573652416-9848-3-git-send-email-chf.fritz@googlemail.comSigned-off-by: NMark 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: NChristoph Fritz <chf.fritz@googlemail.com>
Link: https://lore.kernel.org/r/1573652416-9848-2-git-send-email-chf.fritz@googlemail.comSigned-off-by: NMark Brown <broonie@kernel.org>

Set a default ramp delay value to the regulators with the worst
case value.
Signed-off-by: Npascal paillet <p.paillet@st.com>
Link: https://lore.kernel.org/r/20191113161529.27739-1-p.paillet@st.comSigned-off-by: NMark 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: 05f224ca ("regulator: core: Clean enabling always-on regulators + their supplies")
Signed-off-by: NPascal Paillet <p.paillet@st.com>
Link: https://lore.kernel.org/r/20191113102737.27831-1-p.paillet@st.comSigned-off-by: NMark Brown <broonie@kernel.org>

Those regulators are not actually supported by the AB8500 regulator
driver. There is no ab8500_regulator_info for them and no entry in
ab8505_regulator_match.

As such, they cannot be registered successfully, and looking them
up in ab8505_regulator_match causes an out-of-bounds array read.

Fixes: 547f384f ("regulator: ab8500: add support for ab8505")
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: NStephan Gerhold <stephan@gerhold.net>
Reviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20191106173125.14496-2-stephan@gerhold.netSigned-off-by: NMark Brown <broonie@kernel.org>

The USB regulator was removed for AB8500 in
commit 41a06aa7 ("regulator: ab8500: Remove USB regulator").
It was then added for AB8505 in
commit 547f384f ("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: 547f384f ("regulator: ab8500: add support for ab8505")
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: NStephan Gerhold <stephan@gerhold.net>
Reviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20191106173125.14496-1-stephan@gerhold.netSigned-off-by: NMark Brown <broonie@kernel.org>

SYR83X is used in Rockpro64 and it has die ID == 9. All other
registers are the same as in SYR82X
Signed-off-by: NVasily Khoruzhick <anarsoul@gmail.com>
Link: https://lore.kernel.org/r/20191106161211.1700663-1-anarsoul@gmail.comSigned-off-by: NMark 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: NPeng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1572311875-22880-3-git-send-email-peng.fan@nxp.comSigned-off-by: NMark Brown <broonie@kernel.org>

When disabling a fixed regulator, it may take some time to let the
voltage drop to the expected value, such as zero. If not delay
enough time, the regulator might have been always enabled.
Signed-off-by: NPeng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1572311875-22880-2-git-send-email-peng.fan@nxp.comSigned-off-by: NMark Brown <broonie@kernel.org>

The generic voltage balancer doesn't work correctly if one of regulator
couples turns off. Currently there are no users in kernel for that case,
although let's explicitly show that this case is unsupported for those who
will try to use that feature.

Link: https://lore.kernel.org/linux-samsung-soc/20191008170503.yd6GscYPLxjgrXqDuCO7AJc6i6egNZGJkVWHLlCxvA4@z/Signed-off-by: NDmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20191025002240.25288-2-digetx@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>

Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20191009150203.8052-1-yuehaibing@huawei.comSigned-off-by: NMark Brown <broonie@kernel.org>

Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20191009150138.11640-1-yuehaibing@huawei.comSigned-off-by: NMark 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: NAxel Lin <axel.lin@ingics.com>
Reviewed-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20191007115009.25672-2-axel.lin@ingics.comSigned-off-by: NMark 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: NAxel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20191008010628.8513-3-axel.lin@ingics.comSigned-off-by: NMark Brown <broonie@kernel.org>

The default in rk817_set_ramp_delay is 25MV rather than 10MV.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20191008010628.8513-2-axel.lin@ingics.comSigned-off-by: NMark 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: NAxel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20191008010628.8513-1-axel.lin@ingics.comSigned-off-by: NMark 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: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20191004231017.130290-8-dmitry.torokhov@gmail.comReviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMark 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: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20191004231017.130290-7-dmitry.torokhov@gmail.comReviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMark 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: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20191004231017.130290-6-dmitry.torokhov@gmail.comReviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMark 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: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20191004231017.130290-5-dmitry.torokhov@gmail.comReviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMark 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: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20191004231017.130290-4-dmitry.torokhov@gmail.comReviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMark 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: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20191004231017.130290-3-dmitry.torokhov@gmail.comReviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMark 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: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20191004231017.130290-2-dmitry.torokhov@gmail.comReviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

Merge branch 'ib-fwnode-gpiod-get-index' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio into regulator-5.5

Only the desc field is really used, so use struct regulator_desc instead.
Then struct pbias_regulator_data can be removed.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20191007114320.20977-1-axel.lin@ingics.comSigned-off-by: NMark Brown <broonie@kernel.org>

It's more straightforward to use for statement here.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Acked-by: NSteve Twiss <stwiss.opensource@diasemi.com>
Link: https://lore.kernel.org/r/20191007115009.25672-1-axel.lin@ingics.comSigned-off-by: NMark Brown <broonie@kernel.org>

Add support for PM6150/PM6150L regulators. This ensures
that consumers are able to modify the physical state of PMIC
regulators.
Signed-off-by: NKiran Gunda <kgunda@codeaurora.org>
Link: https://lore.kernel.org/r/1570183734-30706-3-git-send-email-kgunda@codeaurora.orgSigned-off-by: NMark Brown <broonie@kernel.org>

Add PM6150 and PM6150L compatibles for Qualcomm SC7180 platfrom.
Signed-off-by: NKiran Gunda <kgunda@codeaurora.org>
Link: https://lore.kernel.org/r/1570183734-30706-2-git-send-email-kgunda@codeaurora.orgSigned-off-by: NMark 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: NYizhuo <yzhai003@ucr.edu>
Link: https://lore.kernel.org/r/20191003175813.16415-1-yzhai003@ucr.eduSigned-off-by: NMark Brown <broonie@kernel.org>

Correct the PMIC5 BoB min voltage from 0.3V to 3V. Also correct
the voltage selector accordingly.
Signed-off-by: NKiran Gunda <kgunda@codeaurora.org>
Link: https://lore.kernel.org/r/1570184215-5355-1-git-send-email-kgunda@codeaurora.orgSigned-off-by: NMark Brown <broonie@kernel.org>

This introduces fwnode_gpiod_get_index() that iterates through common gpio
suffixes when trying to locate a GPIO within a given firmware node.

We also switch devm_fwnode_gpiod_get_index() to call
fwnode_gpiod_get_index() instead of iterating through GPIO suffixes on
its own.
Reviewed-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20190913032240.50333-3-dmitry.torokhov@gmail.comReviewed-by: NMika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

devm_fwnode_get_index_gpiod_from_child() is too long, besides the fwnode
in question does not have to be a child of device node. Let's rename it
to devm_fwnode_gpiod_get_index() and keep the old name for compatibility
for now.

Also let's add a devm_fwnode_gpiod_get() wrapper as majority of the
callers need a single GPIO.
Reviewed-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: NMika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20190913032240.50333-2-dmitry.torokhov@gmail.comSigned-off-by: NLinus Walleij <linus.walleij@linaro.org>