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2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner1-5/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-06regulator: fixed/gpio: Pull inversion/OD into gpiolibLinus Walleij1-27/+8
This pushes the handling of inversion semantics and open drain settings to the GPIO descriptor and gpiolib. All affected board files are also augmented. This is especially nice since we don't have to have any confusing flags passed around to the left and right littering the fixed and GPIO regulator drivers and the regulator core. It is all just very straight-forward: the core asks the GPIO line to be asserted or deasserted and gpiolib deals with the rest depending on how the platform is configured: if the line is active low, it deals with that, if the line is open drain, it deals with that too. Cc: Alexander Shiyan <shc_work@mail.ru> # i.MX boards user Cc: Haojian Zhuang <haojian.zhuang@gmail.com> # MMP2 maintainer Cc: Aaro Koskinen <aaro.koskinen@iki.fi> # OMAP1 maintainer Cc: Tony Lindgren <tony@atomide.com> # OMAP1,2,3 maintainer Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> # EM-X270 maintainer Cc: Robert Jarzmik <robert.jarzmik@free.fr> # EZX maintainer Cc: Philipp Zabel <philipp.zabel@gmail.com> # Magician maintainer Cc: Petr Cvek <petr.cvek@tul.cz> # Magician Cc: Robert Jarzmik <robert.jarzmik@free.fr> # PXA Cc: Paul Parsons <lost.distance@yahoo.com> # hx4700 Cc: Daniel Mack <zonque@gmail.com> # Raumfeld maintainer Cc: Marc Zyngier <marc.zyngier@arm.com> # Zeus maintainer Cc: Geert Uytterhoeven <geert+renesas@glider.be> # SuperH pinctrl/GPIO maintainer Cc: Russell King <rmk+kernel@armlinux.org.uk> # SA1100 Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> #OMAP1 Amstrad Delta Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-11regulator: fixed: Let core handle GPIO descriptorLinus Walleij1-1/+5
Use the gpiod_get() rather than the devm_* version so that the regulator core can handle the lifecycle of these descriptors. Fixes: efdfeb079cc3 ("regulator: fixed: Convert to use GPIO descriptor only") Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-12regulator/gpio: Allow nonexclusive GPIO accessLinus Walleij1-0/+13
This allows nonexclusive (simultaneous) access to a single GPIO line for the fixed regulator enable line. This happens when several regulators use the same GPIO for enabling and disabling a regulator, and all need a handle on their GPIO descriptor. This solution with a special flag is not entirely elegant and should ideally be replaced by something more careful as this makes it possible for several consumers to enable/disable the same GPIO line to the left and right without any consistency. The current use inside the regulator core should however be fine as it takes special care to handle this. For the state of the GPIO backend, this is still the lesser evil compared to going back to global GPIO numbers. Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Jon Hunter <jonathanh@nvidia.com> Fixes: efdfeb079cc3 ("regulator: fixed: Convert to use GPIO descriptor only") Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-02regulator: fixed: Default enable high on DT regulatorsLinus Walleij1-3/+8
commit efdfeb079cc3 ("regulator: fixed: Convert to use GPIO descriptor only") switched to use gpiod_get() to look up the regulator from the gpiolib core whether that is device tree or boardfile. This meant that we activate the code in a603a2b8d86e ("gpio: of: Add special quirk to parse regulator flags") which means the descriptors coming from the device tree already have the right inversion and open drain semantics set up from the gpiolib core. As the fixed regulator was inspected again we got the inverted inversion and things broke. Fix it by ignoring the config in the device tree for now: the later patches in the series will push all inversion handling over to the gpiolib core and set it up properly in the boardfiles for legacy devices, but I did not finish that for this kernel cycle. Fixes: commit efdfeb079cc3 ("regulator: fixed: Convert to use GPIO descriptor only") Reported-by: Leonard Crestez <leonard.crestez@nxp.com> Reported-by: Fabio Estevam <festevam@gmail.com> Reported-by: John Stultz <john.stultz@linaro.org> Reported-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-18regulator: fixed: Convert to use GPIO descriptor onlyLinus Walleij1-17/+16
As we augmented the regulator core to accept a GPIO descriptor instead of a GPIO number, we can augment the fixed GPIO regulator to look up and pass that descriptor directly from device tree or board GPIO descriptor look up tables. Some boards just auto-enumerate their fixed regulator platform devices and I have assumed they get names like "fixed-regulator.0" but it's pretty hard to guess this. I need some testing from board maintainers to be sure. Other boards are straight forward, using just plain "fixed-regulator" (ID -1) or "fixed-regulator.1" hammering down the device ID. It seems the da9055 and da9211 has never got around to actually passing any enable gpio into its platform data (not the in-tree code anyway) so we can just decide to simply pass a descriptor instead. The fixed GPIO-controlled regulator in mach-pxa/ezx.c was confusingly named "*_dummy_supply_device" while it is a very real device backed by a GPIO line. There is nothing dummy about it at all, so I renamed it with the infix *_regulator_* as part of this patch set. Intel MID portions tested by Andy. Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> # Check the x86 BCM stuff Acked-by: Tony Lindgren <tony@atomide.com> # OMAP1,2,3 maintainer Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Reviewed-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-01-26regulator: fixed: Revert support for ACPI interfaceMark Rutland1-46/+0
This reverts commit 13bed58ce874 (regulator: fixed: add support for ACPI interface). While there does appear to be a practical need to manage regulators on ACPI systems, using ad-hoc properties to describe regulators to the kernel presents a number of problems (especially should ACPI gain first class support for such things), and there are ongoing discussions as to how to manage this. Until there is a rough consensus, revert commit 13bed58ce8748d43, which hasn't been in a released kernel yet as discussed in [1] and the surrounding thread. [1] http://lkml.kernel.org/r/20170125184949.x2wkoo7kbaaajkjk@sirena.org.uk Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Lu Baolu <baolu.lu@linux.intel.com> Cc: Mark Brown <broonie@kernel.org> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2016-06-01regulator: fixed: add support for ACPI interfaceLu Baolu1-0/+46
Add support to retrieve fixed voltage configure information through ACPI interface. This is needed for Intel Bay Trail devices, where a GPIO is used to control the USB vbus. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-30regulator: fixed: Remove workaround to handle of_get_named_gpio() returnLaxman Dewangan1-12/+2
The GPIO interface of_get_named_gpio() has implemented the proper error returns even EPROBE_DEFER and hence caller need not to implement any workaround for translating the returned error. Remove the workaround implemented to handle the return of of_get_named_gpio(). Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-12-15Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
2014-12-05Merge remote-tracking branches 'regulator/topic/max77686', ↵Mark Brown1-8/+11
'regulator/topic/max77693', 'regulator/topic/max77802', 'regulator/topic/power-off' and 'regulator/topic/rk808' into regulator-next
2014-11-26regulator: of: Add regulator desc param to of_get_regulator_init_data()Javier Martinez Canillas1-8/+11
The of_get_regulator_init_data() function is used to extract the regulator init_data but information on how to extract certain data is defined in the static regulator descriptor (e.g: how to map the hardware operating modes). Add a const struct regulator_desc * parameter to the function signature so the parsing logic could use the information in the struct regulator_desc. of_get_regulator_init_data() relies on of_get_regulation_constraints() to actually extract the init_data so it has to pass the struct regulator_desc but that is modified on a later patch. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-07regulator: fixed: Use gpio_is_validMarkus Pargmann1-1/+1
Use gpio_is_valid instead of an explicit comparison with 0. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-07regulator: Set ena_gpio_initialized in regulator driversMarkus Pargmann1-1/+4
This patch sets ena_gpio_initialized for all drivers which set a ena_gpio from parsed DT properties. Drivers using pdata may get zero initialized pdata and therefore copy a 0 into the regulator_config ena_gpio field. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20regulator: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-05-26regulator: fixed: use of_property_read_{bool|u32}()Sergei Shtylyov1-9/+4
Use more compact of_property_read_{bool|u32}() calls instead of the of_{find|get}_property() calls. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-20regulator: fixed: Remove redundant error messageSachin Kamat1-3/+1
kzalloc prints its own OOM message upon failure. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-11regulator: fixed: update to devm_* APIManish Badarkhe1-30/+12
Update the code to use devm_* API so that driver core will manage resources. Signed-off-by: Manish Badarkhe <badarkhe.manish@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-15regulator: fixed: Fix checkpatch issueJingoo Han1-6/+4
Fix the following checkpatch warnings. WARNING: braces {} are not necessary for any arm of this statement Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-10regulator: fixed: get rid of {get|list}_voltage()Laxman Dewangan1-26/+2
Provide the rail supply voltage through descriptor to the core and remove the callbacks which implement the get_voltage and list_voltage. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-30regulator: use dev_get_platdata()Jingoo Han1-1/+1
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-01-04Drivers: regulator: remove __dev* attributes.Greg Kroah-Hartman1-1/+1
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Liam Girdwood <lrg@ti.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-20regulator: remove use of __devexitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-20regulator: remove use of __devinitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-11-20regulator: remove use of __devexit_pBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-05regulator: fixed: dt: support for input supplyLaxman Dewangan1-1/+18
Add support for input supply in DT parsing of node. The input supply will be provided by the property "vin-supply" in the regulator node. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-03regulator: fixed: Use core GPIO enable supportMark Brown1-88/+18
This is essentially the code that was factored out into the core when the feature was implemented. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-03regulator: fixed: Set enable enable_time in regulator_descMark Brown1-10/+2
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-01regulator: fixed: support deferred probe for DT GPIOsStephen Warren1-5/+21
of_get_named_gpio() needs the driver hosting the GPIO that the DT property references to have been probed. Detect this specific failure, and defer the probe of the whole regulator until this API can complete. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-03regulator: fixed: Use of_match_ptr() for of_match_table entryAxel Lin1-3/+1
Use the new of_match_ptr() macro for the of_match_table pointer entry to avoid having to #define match NULL. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-07regulator: fixed: add property for gpio open drain flagLaxman Dewangan1-0/+3
Add property for the gpio flag open drain when registering fixed regulator. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-04-23regulator: Remove unneeded include of linux/delay.h from regulator driversAxel Lin1-1/+0
All the drivers that need delay for the regulator voltage output voltage to stabilize after being enabled or after being set to a new value has been converted to implement enable_time and set_voltage_time_sel callbacks. Then regulator core will take care of the necessary delay. For the drivers that don't need the delay, don't need to include linux/delay.h. This patch removes the unneeded include of linux/delay.h in regulator drivers. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-04-09regulator: core: Use a struct to pass in regulator runtime configurationMark Brown1-3/+7
Rather than adding new arguments to regulator_register() every time we want to add a new bit of dynamic information at runtime change the function to take these via a struct. By doing this we avoid needing to do further changes like the recent addition of device tree support which required each regulator driver to be updated to take an additional parameter. The regulator_desc which should (mostly) be static data is still passed separately as most drivers are able to configure this statically at build time. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-04-03regulator: fixed: Support for open drain gpio pinLaxman Dewangan1-12/+11
Adding flag on fixed regulator board configuration structure to specify whether gpio is open drain type or not. Passing this information to gpio library when requesting gpio so that gpio driver can set the pin state accordingly, for open drain type: - Pin can be set HIGH as setting as input, PULL UP on pin make this as HIGH. - Pin can be set LOW as setting it as output and drive to LOW. The non-open drain pin can be set HIGH/LOW by setting it to output and driving it to HIGH/LOW. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-04-01regulator: fixed: Don't supply voltage change ops when no GPIO is givenMark Brown1-14/+13
Rather than replicating the core support for always on regulators use a different set of ops with none of the enable related operations provided when we don't have any ops. This ensures that we automatically pick up any enhanced support for such regulators that the core has such as the warnings about regulation constraints that can't be used. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-04-01regulator: fixed: Use devm_kzalloc()Mark Brown1-3/+2
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-12regulator fixed: Do not report enumaratable voltages if there are noneSascha Hauer1-1/+3
If used as a dummy voltage provider the fixed regulator should not set n_voltages to make the core accept the device. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.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>
2012-01-02regulator: 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>
2011-12-05Merge branch 'topic/dt' of ↵Mark Brown1-1/+1
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 Guo1-1/+1
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>
2011-11-27Merge 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 Brown1-1/+5
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>
2011-11-23Merge remote-tracking branch 'regulator/topic/dt' into regulator-nextMark Brown1-1/+66
2011-11-23regulator: pass additional of_node to regulator_register()Rajendra Nayak1-1/+1
With device tree support for regulators, its needed that the regulator_dev->dev device has the right of_node attached. To be able to do this add an additional parameter to the regulator_register() api, wherein the dt-adapted driver can then pass this additional info onto the regulator core. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-23regulator: adapt fixed regulator driver to dtRajendra Nayak1-0/+65
The fixed regulator driver uses of_get_fixed_voltage_config() to extract fixed_voltage_config structure contents from device tree. Also add documenation for additional bindings for fixed regulators that can be passed through dt. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-23regulator: Don't report zero volts for the fixed voltage regulatorMark Brown1-1/+4
If we don't know what voltage the regulator is set to return an error rather than reporting zero volts. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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