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path: root/drivers/regulator
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2012-03-07regulator: tps65910: Configure correct value for VDDCTRL vout regLaxman Dewangan1-1/+1
As per datasheet, the voltage output is defined as from SEL[6:0] = 3 to 64 (dec) Vout= (SEL[6:0] × 12.5 mV + 562.5 mV) The list_voltage returns the vout as 600mV + selector * 12.5mV and so equivalent VSEL is selector + 3. Adding 3 on selector when configuring VSEL register for VDDCTRL output. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-05regulator: Fix mask parameter in da9052_reg_update callsAxel Lin1-4/+4
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>
2012-02-24regulator: fix the ldo configure according to 88pm860x specJett.Zhou1-3/+3
Signed-off-by: Jett.Zhou <jtzhou@marvell.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
2012-02-10regulator: Fix getting voltage in max8649_enable_time()Axel Lin1-1/+1
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>
2012-02-09regulator: Fix mc13xxx regulator modular build (again)David Miller1-0/+2
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>
2012-01-30Merge tag 'for-linus' of ↵Linus Torvalds1-1/+1
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
2012-01-26regulator: Set apply_uV only when min and max voltages are definedKarol Lewandowski1-1/+1
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>
2012-01-24regulator: Fix documentation for of_node parameter of regulator_register()Mark Brown1-1/+2
Commit 5bc75a886353 ("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>
2012-01-23kernel-doc: fix new warning in regulator coreRandy Dunlap1-0/+1
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>
2012-01-13Merge branch 'for-next' of ↵Linus Torvalds1-1/+1
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.
2012-01-09mfd: Unify abx500 headers in mfd/abx500Linus Walleij1-1/+1
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>
2012-01-06regulator: set constraints.apply_uV to 0 in of_get_fixed_voltage_configRichard Zhao1-0/+1
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>
2012-01-06regulator: max8925: fix enabled/disabled judgement mistakeKevin Liu1-13/+20
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>
2012-01-03regulator: add regulator_bulk_force_disable functionDonggeun Kim1-0/+37
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>
2012-01-02regulator: pass regulator_register of_node in fixed voltage driverRichard Zhao1-1/+2
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>
2012-01-02regulator: Enable supply regulator if child rail is enabled.Laxman Dewangan1-0/+8
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>
2011-12-30regulator: mc13892: Convert to devm_kzalloc()Fabio Estevam1-3/+1
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>
2011-12-29regulator: mc13783: Convert to devm_kzalloc()Fabio Estevam1-4/+1
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>
2011-12-29regulator: Fix checking return value of create_regulatorAxel Lin1-3/+2
create_regulator() returns NULL on fail. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-29regulator: Fix the error handling if create_regulator failsAxel Lin1-0/+1
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>
2011-12-28regulator: Export regulator_is_supported_voltage()Mark Brown1-0/+1
It's part of the driver interface so should be available to modules. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-22regulator: mc13892: add device tree probe supportShawn Guo3-11/+109
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>
2011-12-22regulator: mc13892: remove the unnecessary prefix from regulator nameShawn Guo1-3/+3
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>
2011-12-20regulator: Convert wm831x regulator drivers to devm_kzalloc()Mark Brown3-18/+9
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-20regulator: da9052: Staticize non-exported symbolsAxel Lin1-2/+2
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>
2011-12-17regulator: Replace kzalloc with devm_kzalloc and if-else with a switch-case ↵Ashish Jangam1-5/+11
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>
2011-12-15regulator: Update da9052-regulator for DT changesMark Brown1-1/+1
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-12-15regulator: DA9052/53 Regulator supportAshish Jangam3-0/+608
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>
2011-12-05Merge branch 'topic/dt' of ↵Mark Brown2-4/+8
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-next
2011-12-05regulator: pass device_node to of_get_regulator_init_data()Shawn Guo2-4/+5
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>
2011-12-05regulator: If a single voltage is set with device tree then set apply_uVMark Brown1-0/+3
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>
2011-11-30regulator: Allow regulators to register with no init_dataMark Brown1-18/+25
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>
2011-11-28Merge remote-tracking branches 'regulator/topic/dt' and ↵Mark Brown1-2/+44
'regulator/for-linus' into regulator-next
2011-11-28regulator: twl: fix twl4030 support for smps regulatorsTero Kristo1-2/+44
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
2011-11-28Merge remote-tracking branch 'regulator/for-linus' into regulator-nextMark Brown1-1/+1
2011-11-28regulator: fix use after free bugLothar Waßmann1-1/+1
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>
2011-11-28Merge remote-tracking branch 'regulator/for-linus' into regulator-nextMark Brown1-1/+1
2011-11-28regulator: Convert virtual and userspace regulator consumer drivers to use ↵Axel Lin2-23/+2
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>
2011-11-28regulator: aat2870: Remove a redundant bitwise and operationAxel Lin1-1/+1
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>
2011-11-28regulator: aat2870: Fix the logic of checking if no id is matched in ↵Axel Lin1-1/+1
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
2011-11-27Merge remote-tracking branch 'regulator/topic/dt' into regulator-nextMark Brown1-1/+6
2011-11-27regulator: Avoid potential NULL dereference in reg_fixed_voltage_probe()Axel Lin1-1/+6
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>
2011-11-27Merge remote-tracking branch 'regulator/topic/dt' into regulator-nextMark Brown2-1/+7
2011-11-27regulator: Staticise of_get_fixed_voltage_config()Axel Lin1-1/+2
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>
2011-11-27regulator: Checking return value of of_get_regulator_init_dataAxel Lin1-0/+3
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>
2011-11-27regulator: export of_get_regulator_init_dataAxel Lin1-0/+2
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>
2011-11-24Merge remote-tracking branch 'regulator/topic/dt' into regulator-nextMark Brown1-1/+1
2011-11-24regulator: Fix compile break due to missing arguments to regulator_registerRajendra Nayak1-1/+1
The commit 2c043bcbf287 ("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>
2011-11-23Merge remote-tracking branch 'regulator/topic/dt' into regulator-nextMark Brown41-56/+260
2011-11-23Merge branch 'for-linus' of ↵Mark Brown1-6/+8
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-next
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