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
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>
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>
* '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.
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>
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>
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>
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>
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>
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>
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>
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>
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>
