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2010-02-23regulator: Fix display of null constraints for regulatorsMark Brown
commit 973e9a2795b3b41d8408a0bb6f87b783c5efc88a upstream. If the regulator constraints are empty and there is no voltage reported then nothing will be added to the text displayed for the constraints, leading to random stack data being printed. This is unlikely to happen for practical regulators since most will at least report a voltage but should still be fixed. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-02-09regulator: Specify REGULATOR_CHANGE_STATUS for WM835x LED constraintsMark Brown
commit a2fad9bf26a1d44a8d31a5c4528108a2b9f468ab upstream. The WM8350 LED driver needs to be able to enable and disable the regulators it is using. Previously the core wasn't properly enforcing status change constraints so the driver was able to function but this has always been intended to be required. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-02regulator: Initialise wm831x structure pointor for ISINK driverMark Brown
The version that made it into mainline missed the initialisation of the chip handle. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-11-16dereferencing freed memory regulator_fixed_voltage_remove()Dan Carpenter
Don't dereference drvdata after it has been freed. regards, dan carpenter Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-11-16regulator: Fix check of unsigned return value and transmit errors in ↵Roel Kluin
wm831x_gp_ldo_get_mode() If ret is unsigned, the checks for negative wm831x_reg_read() return values are wrong. The error value should be transmitted to its caller, e.g. wm831x_gp_ldo_get_status() which tests for a negative return value. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-11-16regulator: Handle missing constraints in _regulator_disable()Mark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: fix voltage range in da9034 ldo12Haojian Zhuang
Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator/lp3971: drop unnecessary initializationWolfram Sang
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: drop 'default n'Wolfram Sang
Specifying 'default n' is superfluous. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: fix calculation of voltage range in da9034_set_ldo12_voltage()Roel Kluin
For val to be greater than 7 or less than 20 is logically always true. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Liam Girdwood <lrg@slimlogic.co.uk> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22drivers/regulator/Kconfig: fix typo (s/Usersapce/Userspace/) in ↵Michael Prokop
REGULATOR_USERSPACE_CONSUMER description Signed-off-by: Michael Prokop <mika@grml.org> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22REGULATOR Handle positive returncode from enableLinus Walleij
This makes _regulator_enable() properly handle the case where a regulator is already on when you try to enable it. Currently it will erroneously handle positive return values as an error. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: tps650xx - build fixes for x86_64Liam Girdwood
Fixes the following errors on both tps650xx regulator drivers :- drivers/regulator/tps65023-regulator: struct i2c_device_id is 32 bytes. The last of 1 is: 0x74 0x70 0x73 0x36 0x35 0x30 0x32 0x33 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 FATAL: drivers/regulator/tps65023-regulator: struct i2c_device_id is not terminated with a NULL entry! This patch also fixes the GPL v2 licence string for both drivers. Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22Regulator: Adding TPS65023 and TPS6507x in Kconfig and MakefileAnuj Aggarwal
Adding TPS65023 and TPS6507x regulator driver support in drivers/regulator/Makefile and drivers/regulator/Kconfig Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22Regulator: Add TPS6507x regulator driverAnuj Aggarwal
Adding support for TI TPS6507x regulator driver Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22Regulator: Add TPS65023 regulator driverAnuj Aggarwal
Adding support for TI TPS65023 regulator driver Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: userspace: use sysfs_create_groupFelipe Balbi
and avoid introducing our own loops for creating several sysfs entries. Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Add GPIO enable control to fixed voltage regulator driverRoger Quadros
Now fixed regulators that have their enable pin connected to a GPIO line can use the fixed regulator driver for regulator enable/disable control. The GPIO number and polarity information is passed through platform data. GPIO enable control is achieved using gpiolib. Signed-off-by: Roger Quadros <ext-roger.quadros@nokia.com> Reviewed-by: Philipp Zabel <philipp.zabel@gmail.com> Reviewed-by: Felipe Balbi <felipe.balbi@nokia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22Regulator: Implement list_voltage for pcf50633 regulator driver.Lars-Peter Clausen
This patch implements list_voltage for the pcf50644 regulator driver. As the voltages are linearly scaled the code to convert register values to voltages can be reused and most of the code can be shared with get_voltage. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: regulator_enable() permission checkingMark Brown
The regulator_enable() code wasn't actually checking that the machine constraints had given permission to enable the regulator. Add code to do that, but only if the regulator is not already on due to something like always_on or being left on at startup since in those cases there's no physical change being introduced and the constraint wouldn't make any sense. Also add matching code for disable(). We need to do less there since either regulator_enable() should have succeeded first or the board setup makes no sense. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Push locking for regulator_is_enabled() outMark Brown
Allows use by more of the internal regulator API code. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Check for constraints in regulator_init_complete()Mark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Check for constraints before using them for nameMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: More explict error reporting for fixed regulatorMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: da903x: consolidate DA903[045]_DVC macrosMike Rapoport
Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Improve virtual consumer probe error handlingMark Brown
Report errors to the user and try harder to clean up if we're not able to probe. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Fix support for deviceless supply mappingsMark Brown
The patch to add support for looking up consumers by device name had the side effect of causing us to require a device which is at best premature since at least cpufreq still operates outside the device model. Remove that requirement. Reported-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Warn when unregistering an in-use regulatorMark Brown
We're probably going to start oopsing fairly soon after this happens. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Add regulator voltage range check APIMark Brown
Simplify checking of support for voltage ranges by providing an API which wraps the existing count and list operations. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Add regulator_get_exclusive() APIMark Brown
Some consumers require complete control of the regulator and can't tolerate sharing it with other consumers, most commonly because they need to have the regulator actually disabled so can't have other consumers forcing it on. This new regulator_get_exclusive() API call allows these consumers to explicitly request this, documenting the assumptions that they are making. In order to simplify coding of such consumers the use count for regulators they request is forced to match the enabled state of the regulator when it is requested. This is not possible for consumers which can share regulators due to the need to keep track of the ownership of use counts. A new API call is used rather than an additional argument to the existing regulator_get() in order to avoid merge headaches with driver code in other trees. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: support list voltage in da903xHaojian Zhuang
Make da903x driver to list voltage and count voltage. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: replace ADTV1 register by ADTV2 in da903xHaojian Zhuang
In PXA3xx SoC family, V_CORE power doamin is supplied by BUCK1 that is controller by ADTV1 or ADTV2 register. By default, v1 and v2 has the same copy. If v1 or v2 is updated, the last value that is written to either register takes effect. It means that v1 and v2 has different copy. And the actual voltage output is determinated by last update on either register. DA9034/35 is binded with PXA3xx SoC family. While SoC is scaling OP or entering/exiting lower power mode, SoC needs to change voltage of V_CORE power doamin. In order to be efficient, POWER I2C (hardcode) mode could be enabled in SoC. In this mode, SoC will control v2 register directly. In original DA903x driver, software will only read regulator data from v1 register. But SoC controls v2 register directly. It results that v1 and v2 isn't synchronized. Wrong data will be read from v1 register. So access v2 register in da903x driver instead. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: support da9030 BUCK in da903x driverHaojian Zhuang
Support the operation of DA9030 BUCK2 in da903x driver. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Acked-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: add buck3 in da903x driverHaojian Zhuang
BUCK3 is the new component in DA9035. So there're three BUCKs in DA9035. And there're two BUCKs in DA9034. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22drivers/regulator/pcf50633-regulator.c: Remove unnecessary semicolonsJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Allow consumer supplies to be set up with dev_name()Mark Brown
Follow the approach suggested by Russell King and implemented by him in the clkdev API and allow consumer device supply mapings to be set up using the dev_name() for the consumer instead of the struct device. In order to avoid making existing machines instabuggy and creating merge issues the use of struct device is still supported for the time being. This resolves problems working with buses such as I2C which make the struct device available late providing that the final device name is known, which is the case for most embedded systems with fixed setups. Consumers must still use the struct device when calling regulator_get(). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Make virtual consumer a bit more chattyMark Brown
This makes it easier to read the logs when doing testing. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Make virtual consumer use dev_printkMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: Report regulator_get() failure in virtual consumerMark Brown
The core will no longer complain so we should log an error here. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-22regulator: add check index of wm8350->pmic.pdev[]Roel Kluin
Ensure that reg is within the bounds of array wm8350->pmic.pdev[]. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-09-17regulator: Voltage count for AB3100Linus Walleij
This sets the number of voltages for the AB3100 regulators so that they play well with the voltage listing functions and can be used properly with the MMC regulator integration glue for example. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17regulator: AB3100 supportLinus Walleij
This adds support for the regulators found in the AB3100 Mixed-Signal IC. It further also defines platform data for the ST-Ericsson U300 platform and extends the AB3100 MFD driver so that platform/board data with regulation constraints and an init function can be passed down all the way from the board to the regulators. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17regulator: Add Freescale MC13783 driverSascha Hauer
This driver provides basic support for the voltage regulators integrated into the Freescale MC13783 PMIC. It is currently only possible to enable/disable outputs, not to actually set the voltage. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17regulator: get pcap data from the parent deviceAntonio Ospite
Right now the pcap core driver passes a reference to its pcap data abusing the subdrivers platform drvdata, this is not good. Get the reference directly from the parent device. Signed-off-by: Antonio Ospite <ospite@studenti.unina.it> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17regulator: register pcap earlierAntonio Ospite
Register pcap-regulator earlier so it can be used with cpufreq Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17regulator: Add WM831x ISINK supportMark Brown
The WM831x series of PMICs provide two constant current sinks designed to drive strings of serially connected LEDs for applications such as backlights. This driver adds support for those regulators. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17regulator: Add WM831x DC-DC boost convertor supportMark Brown
The WM831x series of PMICs include a single DC-DC boost convertor. This adds basic support for this convertor. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17regulator: Add WM831x EPE supportMark Brown
The WM831x series of PMICs provide two optional outputs for controlling external devices during power sequencing, for example an external regulator. While in essence these are GPIOs the hardware presents them as DCDCs with very little control so provide support via the regulator API in that fashion. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17regulator: Add WM831x LDO supportMark Brown
The WM831x series of devices provide three types of LDO: - General purpose LDOs supporting voltages from 0.9-3.3V - High performance analogue LDOs supporting voltages from 1-3.5V - Very low power consumption LDOs intended to support always on functionality. This patch adds support for all three kinds of LDO. Each regulator is probed as an individual platform device with resources used to provide the register map location of the regulator. Mixed hardware and software control of regulators is not current supported. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-17regulator: Add WM831x DC-DC buck convertor supportMark Brown
The WM831x series of devices all have 3 DC-DC buck convertors. This driver implements software control for these regulators via the regulator API. Use with split hardware/software control of individual regulators is not supported, though regulators not controlled by software may be controlled via the hardware control interfaces. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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