Commit Graph

532 Commits

Author SHA1 Message Date
Axel Lin
4adf9beda5 regulator: Fix mask parameter in da9052_reg_update calls
If the mask parameter is 0, info->activate_bit bit won't be set by
calling da9052_reg_update.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-05 12:28:58 +00:00
Jett.Zhou
3380643b0e regulator: fix the ldo configure according to 88pm860x spec
Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2012-02-24 14:56:32 +00:00
Axel Lin
9fc886a188 regulator: Fix getting voltage in max8649_enable_time()
Current code takes wrong parameter while calling max8649_list_voltage.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-02-10 11:20:55 +00:00
David Miller
5326916354 regulator: Fix mc13xxx regulator modular build (again)
Since mc13xxx-regulator-core.c and the actual drivers can get built
into seperate modules, you have to export the DT support symbols
"mc13xxx_get_num_regulators_dt" and "mc13xxx_parse_regulators_dt"
otherwise the allmodconfig build fails on sparc64.

[Updated the subject; the same thing was previously reported and fixed
in -next but for some reason nobody noticed for some considerable time
after the issue was introduced -- broonie]

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-02-09 22:57:46 +00:00
Linus Torvalds
b527a2331b This fixes an integration issue with the regulator device tree bindings
which shook out in -rc.  The bindings were overly enthusiatic when
 deciding to set a voltage on a regulator and would try to set zero volts
 on an unconfigured regulator which isn't supported.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

This fixes an integration issue with the regulator device tree bindings
which shook out in -rc.  The bindings were overly enthusiatic when
deciding to set a voltage on a regulator and would try to set zero volts
on an unconfigured regulator which isn't supported.

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: Set apply_uV only when min and max voltages are defined
2012-01-30 10:16:25 -08:00
Karol Lewandowski
8a093049c6 regulator: Set apply_uV only when min and max voltages are defined
apply_uV is errornously set when regulator is instantiated from device
tree, even when it doesn't contain any voltage constraints.

This commit fixes error:

  machine_constraints_voltage: CHARGER: failed to apply 0uV constraint

for following regulator description in DTS:

  CHARGER {
	regulator-min-microamp = <100000>;
	regulator-max-microamp = <200000>;
  }

Signed-off-by: Karol Lewandowski <k.lewandowsk@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-26 11:01:21 +00:00
Mark Brown
4a7cbb56fd regulator: Fix documentation for of_node parameter of regulator_register()
Commit 5bc75a8863 ("kernel-doc: fix new warning in regulator core")
added documentation for of_node to address a warning but the
documentation didn't explain what the parameter is for so would be
likely to be unhelpful for users.  Clarify that.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-24 10:40:06 -08:00
Randy Dunlap
5bc75a8863 kernel-doc: fix new warning in regulator core
Fix new kernel-doc warning:

Warning(drivers/regulator/core.c:2741): No description found for parameter 'of_node'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc:	Liam Girdwood <lrg@ti.com>
Cc:	Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-23 08:44:53 -08:00
Linus Torvalds
21ebd6c68b Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (59 commits)
  rtc: max8925: Add function to work as wakeup source
  mfd: Add pm ops to max8925
  mfd: Convert aat2870 to dev_pm_ops
  mfd: Still check other interrupts if we get a wm831x touchscreen IRQ
  mfd: Introduce missing kfree in 88pm860x probe routine
  mfd: Add S5M series configuration
  mfd: Add s5m series irq driver
  mfd: Add S5M core driver
  mfd: Improve mc13xxx dt binding document
  mfd: Fix stmpe section mismatch
  mfd: Fix stmpe build warning
  mfd: Fix STMPE I2c build failure
  mfd: Constify aat2870-core i2c_device_id table
  gpio: Add support for stmpe variant 801
  mfd: Add support for stmpe variant 801
  mfd: Add support for stmpe variant 610
  mfd: Add support for STMPE SPI interface
  mfd: Separate out STMPE controller and interface specific code
  misc: Remove max8997-muic sysfs attributes
  mfd: Remove unused wm831x_irq_data_to_mask_reg()
  ...

Fix up trivial conflict in drivers/leds/Kconfig due to addition of
LEDS_MAX8997 and LEDS_TCA6507 next to each other.
2012-01-13 20:43:32 -08:00
Linus Walleij
ee66e653ca mfd: Unify abx500 headers in mfd/abx500
This moves all the header files related to the abx500 family into
a common include directory below mfd. From now on we place any
subchip header in that directory. Headers previously in e.g.
<linux/mfd/ab8500/gpio.h> get prefixed and are now e.g.
<linux/mfd/abx500/ab8500-gpio.h>. The top-level abstract interface
remains in <linux/mfd/abx500.h>.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-01-09 00:37:39 +01:00
Richard Zhao
0c437c4ae7 regulator: set constraints.apply_uV to 0 in of_get_fixed_voltage_config
Fix fixed regulator using DT failed to call regulator_register.

of_get_regulator_init_data set apply_uV to 1, but fixed regulator
doesn't need it. Set it back to 0.

Signed-off-by: Richard Zhao <richard.zhao@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-06 11:01:09 -08:00
Kevin Liu
65364e9ab9 regulator: max8925: fix enabled/disabled judgement mistake
Max8925 ldo status should be determined by two factors:
1. power up/down sequence selection(LDOCTL[4:2]).
2. i2c enable bit(LDOCTL[0]).

Max8925 ldo support two types of power up/down sequence:
1. flexible sequence(LDOCTL[4:2] = 0~6).
2. i2c sequence(LDOCTL[4:2] = 7).

With flexible sequence selected, the ldo is enabled during power up by default.
With i2c sequence selected, the ldo is controlled by the i2c enable bit(LDOCTL[0]).

Signed-off-by: Kevin Liu <kliu5@marvell.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-06 10:56:14 -08:00
Donggeun Kim
e1de2f4234 regulator: add regulator_bulk_force_disable function
This patch allows consumers to forcibly disable multiple regulator
clients in a single API call.

Signed-off-by: Donggeun Kim <dg77.kim@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-03 20:20:01 +00:00
Richard Zhao
1bb50b28a9 regulator: pass regulator_register of_node in fixed voltage driver
regulator_get needs of_node to find right regulator.

Signed-off-by: Richard Zhao <richard.zhao@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-02 12:45:37 +00:00
Laxman Dewangan
b2296bd43e regulator: Enable supply regulator if child rail is enabled.
During regulator_register, the rail is set on the provided
machine constraints and if it is enabled then it is also
require to enable the supply regulator. This will make sure
that:
   1. Proper reference count for supply regulator to be maintain.
   2. Supply regulator should be enable when given rail is enabled.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-02 11:36:02 +00:00
Fabio Estevam
4fef21eaac regulator: mc13892: Convert to devm_kzalloc()
Convert mc13892-regulator driver to use devm_kzalloc().

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-30 02:06:29 +00:00
Fabio Estevam
cbe10a3674 regulator: mc13783: Convert to devm_kzalloc()
Convert mc13783-regulator driver to use devm_kzalloc().

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-29 17:58:37 +00:00
Axel Lin
32c78de8f1 regulator: Fix checking return value of create_regulator
create_regulator() returns NULL on fail.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-29 10:40:19 +00:00
Axel Lin
bcda432194 regulator: Fix the error handling if create_regulator fails
In the case of create_regulator() fails, goto the error path immediately.
It does not make sense to update rdev->open_count if create_regulator fails.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-29 10:40:19 +00:00
Mark Brown
a398eaa23e regulator: Export regulator_is_supported_voltage()
It's part of the driver interface so should be available to modules.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-28 17:09:32 +00:00
Shawn Guo
93bcb23b38 regulator: mc13892: add device tree probe support
It adds device tree probe support for mc13892-regulator driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-22 11:10:45 +00:00
Shawn Guo
3a5d03158d regulator: mc13892: remove the unnecessary prefix from regulator name
It's not really necessary to add a prefix 'MC13892__' for each mc13892
regulator name, since the chip must have been identified as mc13892
when we look at the regulator name.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-22 11:07:21 +00:00
Mark Brown
fded2f4fae regulator: Convert wm831x regulator drivers to devm_kzalloc()
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-20 11:29:05 +00:00
Axel Lin
6242eae9bc regulator: da9052: Staticize non-exported symbols
da9052_regulator_info and da9053_regulator_info are not used outside
this driver so no need to make the symbol global.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-20 10:02:48 +00:00
Ashish Jangam
984b5a6ba5 regulator: Replace kzalloc with devm_kzalloc and if-else with a switch-case for da9052-regulator
Reported-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-17 09:25:47 +00:00
Mark Brown
47aed92c77 regulator: Update da9052-regulator for DT changes
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-15 15:03:38 +08:00
Ashish Jangam
08bf1c0ae9 regulator: DA9052/53 Regulator support
The Dialog PMIC has below featured regulators:-
DA9052-BC - 4 DVS Buck converters 0.5V - 3.6V upto 1Amp.
DA9053-AA/BX - 4 DVS Buck converters 0.5V - 2.5V upto 3Amp.
DA9052/53 - 10 Programmable LDO's High PSSR, 1% accuracy.

This patch support all the DA9052 and Da9053 regulators. The output voltages are
fully programmable via I2C or SPI interface. The platform data with regulation
constraints is passed down from the board to the regulator.

Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Tested-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-15 02:00:10 +08:00
Mark Brown
2f288efd2f Merge branch 'topic/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-next 2011-12-05 19:27:49 +00:00
Shawn Guo
d9a861cce1 regulator: pass device_node to of_get_regulator_init_data()
It's not always true that the device_node of regulator can be found
at dev->of_node at the time when of_get_regulator_init_data() is being
called, because in some cases the regulator nodes in device tree do
not have 'struct device' behind them until regulator_dev gets created
for it by core function regulator_register().

The patch adds device_node as a new parameter to
of_get_regulator_init_data(), so that caller can pass in the node of
regulator directly.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-05 19:10:17 +00:00
Mark Brown
ab62aa931e regulator: If a single voltage is set with device tree then set apply_uV
Otherwise there is no way in the bindings to configure a fixed voltage
via software. It seems reasonable to assume that if the binding explicitly
specifies a voltage we want to actually use that voltage.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-05 18:59:10 +00:00
Mark Brown
9a8f5e0720 regulator: Allow regulators to register with no init_data
This allows read-only access to the device configuration which may be
useful for diagnostics.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
2011-11-30 09:38:28 +00:00
Mark Brown
979268cd32 Merge remote-tracking branches 'regulator/topic/dt' and 'regulator/for-linus' into regulator-next 2011-11-28 19:01:08 +00:00
Tero Kristo
ba305e31e8 regulator: twl: fix twl4030 support for smps regulators
SMPS regulator voltage control differs from the one of the LDO ones.
Current TWL code was using LDO regulator ops for controlling the SMPS
regulators, which fails. This was fixed fixed by adding separate
regulator type which uses correct logic and calculations for the
voltage levels.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
2011-11-28 18:58:31 +00:00
Mark Brown
12f457dd78 Merge remote-tracking branch 'regulator/for-linus' into regulator-next 2011-11-28 14:50:45 +00:00
Lothar Waßmann
58fb5cf5d1 regulator: fix use after free bug
This is caused by dereferencing 'rdev' after device_unregister() in
the regulator_unregister() function.  'rdev' is freed by
device_unregister(), so it must not be dereferenced after this call.

[Edited commit message for legibility -- broonie]

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-28 14:44:38 +00:00
Mark Brown
9ee4be4156 Merge remote-tracking branch 'regulator/for-linus' into regulator-next 2011-11-28 11:49:56 +00:00
Axel Lin
005d610f2a regulator: Convert virtual and userspace regulator consumer drivers to use module_platform_driver()
This patch converts virtual and userspace regulator consumer drivers to use the
module_platform_driver() macro which makes the code smaller and a bit simpler.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-28 11:49:13 +00:00
Axel Lin
a5228d2e5e regulator: aat2870: Remove a redundant bitwise and operation
The implementation in aat2870_update() already did the bitwise and operation
against mask parameter.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-28 11:49:10 +00:00
Axel Lin
d4d6373c11 regulator: aat2870: Fix the logic of checking if no id is matched in aat2870_get_regulator
In current implementation, the pointer ri is not NULL if no id is matched.
Fix it by checking i == ARRAY_SIZE(aat2870_regulators) if no id is matched.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
2011-11-28 11:48:15 +00:00
Mark Brown
ae523fc574 Merge remote-tracking branch 'regulator/topic/dt' into regulator-next 2011-11-27 19:47:03 +00:00
Axel Lin
22d881c068 regulator: Avoid potential NULL dereference in reg_fixed_voltage_probe()
of_get_fixed_voltage_config() may return NULL, return -ENOMEM in this case
so we don't dereference NULL pointer.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-27 19:46:31 +00:00
Mark Brown
6806a663b0 Merge remote-tracking branch 'regulator/topic/dt' into regulator-next 2011-11-27 11:36:16 +00:00
Axel Lin
bc91396b0b regulator: Staticise of_get_fixed_voltage_config()
It is not used outside this driver so no need to make the symbol global.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-27 11:32:37 +00:00
Axel Lin
4b864af1a3 regulator: Checking return value of of_get_regulator_init_data
of_get_regulator_init_data() may return NULL, thus
check the return value to avoid NULL pointer dereference.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-27 11:29:21 +00:00
Axel Lin
e69af5e967 regulator: export of_get_regulator_init_data
of_get_regulator_init_data is called in drivers/regulator/fixed.c
which could be a module.

Export of_get_regulator_init_data to fix below build error:
ERROR: "of_get_regulator_init_data" [drivers/regulator/fixed.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-27 11:29:21 +00:00
Mark Brown
02fcc84ae5 Merge remote-tracking branch 'regulator/topic/dt' into regulator-next 2011-11-24 10:49:38 +00:00
Rajendra Nayak
156843470c regulator: Fix compile break due to missing arguments to regulator_register
The commit 2c043bcbf2 ("regulator: pass additional of_node to
regulator_register()") caused a compile break because it missed
updating the regulator_register() call in gpio-regulator.c with
the additional parameter (NULL).

The compile break as reported by Stephen Rothwell with the
x86_64 allmodconfig looked like this

drivers/regulator/gpio-regulator.c: In function 'gpio_regulator_probe':
drivers/regulator/gpio-regulator.c:287:8: error: too few arguments to function 'regulator_register'
include/linux/regulator/driver.h:215:23: note: declared here

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-24 10:47:56 +00:00
Mark Brown
924ee2c962 Merge remote-tracking branch 'regulator/topic/dt' into regulator-next 2011-11-23 18:50:59 +00:00
Mark Brown
68aaa37d0e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-next 2011-11-23 18:48:57 +00:00
Rajendra Nayak
69511a452e regulator: map consumer regulator based on device tree
Device nodes in DT can associate themselves with one or more
regulators/supply by providing a list of phandles (to regulator nodes)
and corresponding supply names.

For Example:
	devicenode: node@0x0 {
		...
		...
		vmmc-supply = <&regulator1>;
		vpll-supply = <&regulator2>;
	};

The driver would then do a regulator_get(dev, "vmmc"); to get
regulator1 and do a regulator_get(dev, "vpll"); to get
regulator2.

of_get_regulator() extracts the regulator node for a given
device, based on the supply name.

Use it to look up the regulator for a given consumer from device tree, during
a regulator_get(). If not found fallback and lookup through
the regulator_map_list instead.

Also, since the regulator dt nodes can use the same binding to
associate with a parent regulator/supply, allow the drivers to
specify a supply_name, which can then be used to lookup dt
to find the parent phandle.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-23 18:47:31 +00:00