Merge remote-tracking branches 'regulator/topic/ltc3676', 'regulator/topic/max14577', 'regulator/topic/max77620', 'regulator/topic/max77686' and 'regulator/topic/max77693' into regulator-next

Merge remote-tracking branches 'regulator/topic/cpcap', 'regulator/topic/fan53555', 'regulator/topic/gpio', 'regulator/topic/hi655x' and 'regulator/topic/lp8755' into regulator-next

Merge remote-tracking branches 'regulator/topic/anatop', 'regulator/topic/arizona', 'regulator/topic/as3711' and 'regulator/topic/bcm590xx' into regulator-next

Merge remote-tracking branches 'regulator/topic/88pm800', 'regulator/topic/88pm8607', 'regulator/topic/aat2870', 'regulator/topic/act8945a' and 'regulator/topic/ad5938' into regulator-next

Merge remote-tracking branches 'regulator/fix/debugfs' and 'regulator/fix/tps65086' into regulator-linus

regulator: Fixes for v4.10

Three changes here, two run of the mill driver specific fixes and a
change from Mark Rutland which reverts some new device specific ACPI
binding code which was added during the merge window as there are
concerns about this sending the wrong signal about usage of regulators
in ACPI systems.

# gpg: Signature made Fri 03 Feb 2017 11:48:10 GMT
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# gpg:                issuer "broonie@kernel.org"
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# gpg: key 276568D75C6153AD marked as ultimately trusted
# gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>" [ultimate]
# gpg:                 aka "Mark Brown <broonie@debian.org>" [ultimate]
# gpg:                 aka "Mark Brown <broonie@kernel.org>" [ultimate]
# gpg:                 aka "Mark Brown <broonie@tardis.ed.ac.uk>" [ultimate]
# gpg:                 aka "Mark Brown <broonie@linaro.org>" [ultimate]
# gpg:                 aka "Mark Brown <Mark.Brown@linaro.org>" [ultimate]

After commit 66d228a2 ("regulator: core: Don't use regulators as
supplies until the parent is bound"), input supplies aren't resolved
if the input supplies parent device has not been bound. This prevent
regulators to hold an invalid reference if its supply parent device
driver probe is deferred.

But this causes issues on some boards where a PMIC's regulator use as
input supply a regulator from another PMIC whose driver is registered
after the driver for the former.

In this case the regulators for the first PMIC will fail to resolve
input supplies on regulators registration (since the other PMIC wasn't
probed yet). And when the core attempts to resolve again latter when
the other PMIC registers its own regulators, it will fail again since
the parent device isn't bound yet.

This will cause some parent supplies to never be resolved and wrongly
be disabled on boot due taking them as unused.

To solve this problem, also attempt to resolve the pending regulators
input supplies before disabling the unused regulators.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

It is allowed to call regulator_get with a NULL dev argument
(_regulator_get explicitly checks for it) but this causes an error later
when printing /sys/kernel/debug/regulator_summary.

Fix this by explicitly handling "deviceless" consumers in the debugfs code.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org

When we check for additional DT properties in the current node we
use the device_node passed in with the configuration data, this
will not point to the correct DT node, use the one passed in
for this purpose.

Fixes: d2a2e729 ("regulator: tps65086: Add regulator driver for the TPS65086 PMIC")
Reported-by: Steven Kipisz <s-kipisz2@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Tested-by: Steven Kipisz <s-kipisz2@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

The three load switches are called SWA1, SWB1, and SWB2. The
node names describing properties for these are expected to be
the same, but due to a typo they are not. Fix this here.

Fixes: d2a2e729 ("regulator: tps65086: Add regulator driver for the TPS65086 PMIC")
Reported-by: Steven Kipisz <s-kipisz2@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Tested-by: Steven Kipisz <s-kipisz2@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

The code in _regulator_get() got a bit confusing over time, with control
flow jumping to a label from couple of places. Let's untangle it a bit by
doing the following:

1. Make handling of missing supplies and substituting them with dummy
regulators more explicit:

- check if we not have full constraints and refuse considering dummy
  regulators with appropriate message;

- use "switch (get_type)" to handle different types of request explicitly
  as well. "Normal" requests will get dummies, exclusive will not and
  will notify user about that; optional will fail silently.

2. Stop jumping to a label in the middle of the function but instead have
proper conditional flow. I believe jumps should be reserved for error
handling, breaking from inner loop, or restarting a loop, but not for
implementing normal conditional flow.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Instead of returning both regulator_dev structure as return value and
auxiliary error code in 'ret' argument, let's switch to using ERR_PTR
encoded values. This makes it more obvious what is going on at call sites.

Also, let's not unlock the mutex in the middle of a loop, but rather break
out and have single unlock path.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

The driver defaults to voltage, not current, type so correct
this in the device tree binding documentation.
Signed-off-by: Hans Holmberg <hans@pixelmunchies.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Many Motorola phones like droid 4 are using a custom PMIC called CPCAP
or 6556002. This PMIC is used with several SoCs, I've noticed at least
omap3, omap4 and Tegra2 based Motorola phones and tablets using it.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

"re-enable" was misspelled as "reename".
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

When performing this bulk operation, there is no need to track every supply
individually. It is more efficient to treat entire group as a single
managed resource.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

There is no need to have two loops there, we can store error for subsequent
reporting.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Instead of separate "exclusive" and "allow_dummy" arguments, that formed 3
valid combinations (normal, exclusive and optional) and an invalid one,
let's accept explicit "get_type", like we did in devm-managed code.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

There is no point in assigning value to 'ret' before calling
regulator_dev_lookup() as it will clobber 'ret' anyway.

Also, let's explicitly return -PROBE_DEFER when try_module_get() fails,
instead of relying that earlier initialization of "regulator" carries
correct value.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Merge remote-tracking branches 'regulator/fix/fixed' and 'regulator/fix/twl6040' into regulator-linus

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/max77693-regulator.o
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   2486	    464	      0	   2950	    b86 regulator/max77693-regulator.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/max77686-regulator.o
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Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/max77620-regulator.o
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   5075	   6720	      0	  11795	   2e13 regulator/max77620-regulator.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/max14577-regulator.o
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   3414	    192	      0	   3606	    e16 regulator/max14577-regulator.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/ltc3676.o
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   3145	   2296	      8	   5449	   1549	drivers/regulator/ltc3676.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/ltc3589.o
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Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/lp8755.o
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   3779	   2544	      8	   6331	   18bb	drivers/regulator/lp8755.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/hi655x-regulator.o
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   1201	   2608	      0	   3809	    ee1 regulator/hi655x-regulator.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/fan53555.o
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   3768	    240	      8	   4016	    fb0	drivers/regulator/fan53555.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/bcm590xx-regulator.o
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   2575	   2592	      0	   5167	   142f regulator/bcm590xx-regulator.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/axp20x-regulator.o
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  17888	    192	      0	  18080	   46a0 regulator/axp20x-regulator.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/as3711-regulator.o
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   2301	   3376	      0	   5677	   162d regulator/as3711-regulator.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/arizona-micsupp.o
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Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/arizona-ldo1.o
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Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/ad5398.o
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Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

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Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structure as const as it is only stored in the ops
field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

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Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Declare regulator_ops structures as const as it is only stored in the
ops field of a regulator_desc structure. This field is of type const, so
regulator_ops structures having this property can be made const too.

File size before: drivers/regulator/88pm8607.o
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Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>