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2012-11-18power_supply: Add bq2415x charger driverPali Rohár1-0/+90
The bq2415x charger driver is needed for example on Nokia N900 for charging battery. Driver is part of open source project to replace proprietary battery management. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-10-15ARM: OMAP: SmartReflex: pass device dependent data via platform dataJean Pihet1-2/+12
Remove the device dependent code (ex. cpu_is_xxx()) and settings from the driver code and instead pass them via the platform data. This allows a clean separation of the driver code and the platform code, as required by the move of the platform header files to include/linux/platform_data. Note about the smartreflex functional clocks: the smartreflex fclks are derived from sys_clk and have the same name as the main_clk from the hwmod entry, in order for the SmartReflex driver to request the fclk (using clk_get(dev, "fck")). Signed-off-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-10-07Merge tag 'for-v3.7' of git://git.infradead.org/battery-2.6Linus Torvalds1-5/+42
Pull battery updates from Anton Vorontsov: "1. New drivers: - Marvell 88pm860x charger and battery drivers; - Texas Instruments LP8788 charger driver; 2. Two new power supply properties: whether a battery is authentic, and chargers' maximal currents and voltages; 3. A lot of TI LP8727 Charger cleanups; 4. New features for Charger Manager, mainly now we can disable specific regulators; 5. Random fixes and cleanups for other drivers." Fix up trivial conflicts in <linux/mfd/88pm860x.h> * tag 'for-v3.7' of git://git.infradead.org/battery-2.6: (52 commits) pda_power: Remove ac_draw_failed goto and label charger-manager: Add support sysfs entry for charger charger-manager: Support limit of maximum possible charger-manager: Check fully charged state of battery periodically lp8727_charger: More pure cosmetic improvements lp8727_charger: Fix checkpatch warning lp8727_charger: Add description in the private data lp8727_charger: Fix a typo - chg_parm to chg_param lp8727_charger: Make some cosmetic changes in lp8727_delayed_func() lp8727_charger: Clean up lp8727_charger_changed() lp8727_charger: Return if the battery is discharging lp8727_charger: Make lp8727_charger_get_propery() simpler lp8727_charger: Make lp8727_ctrl_switch() inline lp8727_charger: Make lp8727_init_device() shorter lp8727_charger: Clean up lp8727_is_charger_attached() lp8727_charger: Use specific definition lp8727_charger: Clean up lp8727 definitions lp8727_charger: Use the definition rather than enum lp8727_charger: Fix code for getting battery temp lp8727_charger: Clear interrrupts at inital time ...
2012-10-01Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-1/+1
Pull ARM soc general cleanups from Olof Johansson: "This is a large branch that contains a handful of different cleanups: - Fixing up the I/O space remapping on PCI on ARM. This is a series from Rob Herring that restructures how all pci devices allocate I/O space, and it's part of the work to allow multiplatform kernels. - A number of cleanup series for OMAP, moving and removing some headers, sparse irq rework and in general preparation for multiplatform. - Final removal of all non-DT boards for Tegra, it is now device-tree-only! - Removal of a stale platform, nxp4008. It's an old mobile chipset that is no longer in use, and was very likely never really used with a mainline kernel. We have not been able to find anyone interested in keeping it around in the kernel. - Removal of the legacy dmaengine driver on tegra + A handful of other things that I haven't described above." Fix up some conflicts with the staging tree (and because nxp4008 was removed) * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (184 commits) ARM: OMAP2+: serial: Change MAX_HSUART_PORTS to 6 ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus ARM: mmp: using for_each_set_bit to simplify the code ARM: tegra: harmony: fix ldo7 regulator-name ARM: OMAP2+: Make omap4-keypad.h local ARM: OMAP2+: Make l4_3xxx.h local ARM: OMAP2+: Make l4_2xxx.h local ARM: OMAP2+: Make l3_3xxx.h local ARM: OMAP2+: Make l3_2xxx.h local ARM: OMAP1: Move irda.h from plat to mach ARM: OMAP2+: Make hdq1w.h local ARM: OMAP2+: Make gpmc-smsc911x.h local ARM: OMAP2+: Make gpmc-smc91x.h local ARM: OMAP1: Move flash.h from plat to mach ARM: OMAP2+: Make debug-devices.h local ARM: OMAP1: Move board-voiceblue.h from plat to mach ARM: OMAP1: Move board-sx1.h from plat to mach ARM: OMAP2+: Make omap-wakeupgen.h local ARM: OMAP2+: Make omap-secure.h local ARM: OMAP2+: Make ctrl_module_wkup_44xx.h local ...
2012-09-22power: battery: Generic battery driver using IIOanish kumar1-0/+29
Driver to allow use of the ADC drivers supported by the IIO subsystem for battery status monitoring. Connecting this driver to the relevant IIO device requires registration of the appropriate iio_map structure array by the IIO device driver (usually from platform data). If specified the driver will also make use of a gpio to provide interrupt driven notification that the battery is fully charged. In last version: Addressed concerns raised by lars: a. made the adc_bat per device. b. get the IIO channel using hardcoded channel names. c. Minor issues related to gpio_is_valid and some code refactoring. In V1: Addressed concerns raised by Anton: a. changed the struct name to gab(generic adc battery). b. Added some functions to neaten the code. c. Some minor coding guidelines changes. d. Used the latest function introduce by lars: iio_read_channel_processed to streamline the code. In V2: Addressed concerns by lars: a. No need of allocating memory for channels.Make it array. b. Code restructring, coding style and following kernel guidelines changes suggested by him. In V3: Addressed conerns by Anton: a. Added the copyright. b. Coding guidelines changes suggested by him. c. Added Makefile and Kconfig Signed-off-by: anish kumar <anish198519851985@gmail.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-09-21charger-manager: Add support sysfs entry for chargerChanwoo Choi1-0/+19
This patch add support sysfs entry for each charger(regulator). Charger-manager use one or more chargers for charging battery but some charger isn't necessary on specific scenario. So, if some charger isn't needed, can disable specific charger through 'externally_control' entry while system is on state and confirm the information(name, state) of charger. The list of added sysfs entry - /sys/class/power_supply/battery/chargers/charger.[index]/name show name of charger(regulator) - /sys/class/power_supply/battery/chargers/charger.[index]/state show either enabled or disabled state of charger - /sys/class/power_supply/battery/chargers/charger.[index]/externally_control If 'externally_control' of specific charger is 1, Charger-manager cannot enable regulator for charging when charger cable is attached and charger must be maintained with disabled state. If 'externally_control' is zero, Charger-manager usually can control to enable/disable regulator. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-09-20charger-manager: Support limit of maximum possibleChanwoo Choi1-0/+15
This patch check maximum possible duration of charging/discharging. If whole charging duration exceed 'desc->charging_max_duration_ms', cm stop charging to prevent overcharge/overheat. And if discharging duration exceed, charger cable is attached, after full-batt, cm start charging to maintain fully charged state for battery. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-09-20charger-manager: Check fully charged state of battery periodicallyChanwoo Choi1-1/+7
This patch check periodically fully charged state of battery to protect overcharge and overheat. If battery is fully charged, stop charging and check droped voltage with 'fullbatt_vchkdrop_ms' period. When voltage of battery is more droped than 'fullbatt_vchkdrop_uV' voltage, charger-manager will restart charging for battery. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-09-19ARM: omap: move platform_data definitionsArnd Bergmann1-1/+1
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the omap include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Cc: Kevin Hilman <khilman@ti.com> Cc: "Benoît Cousson" <b-cousson@ti.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Omar Ramirez Luna <omar.ramirez@ti.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Cc: Jarkko Nikula <jarkko.nikula@bitmer.com> Cc: Liam Girdwood <lrg@ti.com> Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: Jean Pihet <j-pihet@ti.com> Cc: J Keerthy <j-keerthy@ti.com> Cc: linux-omap@vger.kernel.org
2012-08-22charger-manager: Fix struct charger_desc's misleading commentAnton Vorontsov1-1/+1
The comment says that charger_regulators is an array of regulator_bulk_data, which is not true, since it's actually a pointer to 'struct charger_regulator'. Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-08-22charger-manager: Use replacement variable to check state of batteryChanwoo Choi1-3/+0
This patch remove unnecessary variable(cm->fullbatt_vchk_uV) by using 'desc->fullbatt_uV' field directly in fullbatt_handler() function to check the state of battery. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-07-31Merge tag 'for-v3.6' of git://git.infradead.org/battery-2.6Linus Torvalds1-1/+66
Pull battery updates from Anton Vorontsov: "The tag contains just a few battery-related changes for v3.6. It's is all pretty straightforward, except one thing. One of our patches added thermal support for power supply class, but thermal/ subsystem changed under our feet. We (well, Stephen, that is) caught the issue and it was decided[1] that I'd just delay the battery pull request, and then will fix it up by merging upstream back into battery tree at the specific commit. That's not all though: another[2] small fixup for thermal subsystem was needed to get rid of a warning in power supply subsystem (the warning was not drivers/power's "fault", the thermal registration function just needed a proper const annotation, which is also done by a small commit on top of the merge. So, to sum this up: - The 'master' branch of the battery tree was in the -next tree for weeks, was never rebased, altered etc. It should be all OK; - Although, for-v3.6 tag contains the 'master' branch + merge + the warning fix. [1] http://lkml.org/lkml/2012/6/19/23 [2] http://lkml.org/lkml/2012/6/18/28" * tag 'for-v3.6' of git://git.infradead.org/battery-2.6: (23 commits) thermal: Constify 'type' argument for the registration routine olpc-battery: update CHARGE_FULL_DESIGN property for BYD LiFe batteries olpc-battery: Add VOLTAGE_MAX_DESIGN property charger-manager: Fix build break related to EXTCON lp8727_charger: Move header file into platform_data directory power_supply: Add min/max alert properties for CAPACITY, TEMP, TEMP_AMBIENT bq27x00_battery: Add support for BQ27425 chip charger-manager: Set current limit of regulator for over current protection charger-manager: Use EXTCON Subsystem to detect charger cables for charging test_power: Add VOLTAGE_NOW and BATTERY_TEMP properties test_power: Add support for USB AC source gpio-charger: Use cansleep version of gpio_set_value bq27x00_battery: Add support for power average and health properties sbs-battery: Don't trigger false supply_changed event twl4030_charger: Allow charger to control the regulator that feeds it twl4030_charger: Add backup-battery charging twl4030_charger: Fix some typos max17042_battery: Support CHARGE_COUNTER power supply attribute smb347-charger: Add constant charge and current properties power_supply: Add constant charge_current and charge_voltage properties ...
2012-07-13charger-manager: Set current limit of regulator for over current protectionChanwoo Choi1-0/+8
This patch support the protection of host device from over current. The Charger-manager set proper current limit of charger(regulator) for charging according to type of charger cable when external connector is attached. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-07-13charger-manager: Use EXTCON Subsystem to detect charger cables for chargingChanwoo Choi1-1/+58
This patch support that charger-manager use EXTCON(External Connector) Subsystem to detect the state of charger cables for enabling or disabling charger(regulator) and select the charger cable for charging among a number of external cable according to policy of H/W board. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-06-26Merge branch 'for_3.6/pm/sr-move' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into devel-driverTony Lindgren1-0/+308
2012-05-31ARM: OMAP2+: SmartReflex: add POWER_AVS Kconfig optionsJean Pihet1-1/+1
Add a Kconfig menu (POWER_AVS) and rename the Kconfig options for the OMAP SmartReflex implementation: CONFIG_OMAP_SMARTREFLEX renames to CONFIG_POWER_AVS_OMAP CONFIG_OMAP_SMARTREFLEX_CLASS3 renames to CONFIG_POWER_AVS_OMAP_CLASS3 This change makes the SmartReflex implementation ready for the move to drivers/. Signed-off-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: J Keerthy <j-keerthy@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-31ARM: OMAP2+: SmartReflex: Use per-OPP data structureJean Pihet1-2/+6
The SmartReflex driver incorrectly treats some per-OPP data as data common to all OPPs (e.g., ERRMINLIMIT). Move this data into a per-OPP data structure. Furthermore, in order to make the SmartReflex implementation ready for the move to drivers/, remove the dependency from the SR driver code to the voltage layer by querying the data tables only from the SR device init code. Based on Paul's original code for the SmartReflex driver conversion. Signed-off-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: J Keerthy <j-keerthy@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-31ARM: OMAP2+: SmartReflex: introduce a busy loop condition test macroJean Pihet1-1/+22
Now that omap_test_timeout is only accessible from mach-omap2/, introduce a similar function for SR. This change makes the SmartReflex implementation ready for the move to drivers/. Signed-off-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: J Keerthy <j-keerthy@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-31ARM: OMAP2+: smartreflex: Use the names from hwmod data instead of voltage domains.Jean Pihet1-0/+3
Associate a name with each SmartReflex instance from the hwmod data, rather than attempting to reuse the name of a voltage domain. The name from hwmod better reflects the smartreflex integration in the system. Also have the name passed to the drivers using pdata, which helps to remove any dependencies on SoC-specific structures. Signed-off-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: J Keerthy <j-keerthy@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-31ARM: OMAP3+: SmartReflex: class drivers should use struct omap_sr *Jean Pihet1-4/+27
Convert SmartReflex "class" functions to take a struct omap_sr *, rather than a struct voltagedomain *. SmartReflex code should be driver code and not tightly coupled to OMAP subarchitecture-specific structures. Based on Paul's original code for the SmartReflex driver conversion. Signed-off-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: J Keerthy <j-keerthy@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-31ARM: OMAP2+: SmartReflex: move the smartreflex header to include/linux/powerJean Pihet1-0/+257
Move the smartreflex header file (arch/arm/mach-omap2/smartreflex.h) in a new header file include/linux/power/smartreflex.h. This change makes the SmartReflex implementation ready for the move to drivers/. Signed-off-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: J Keerthy <j-keerthy@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2012-05-05max17042_battery: Add support for max17047/50 chipRamakrishna Pallala1-0/+17
max17047 is improved version of max17042 chip. It has few HW bug fixes with minor changes in register set. max17050 is same as max17047 chip except its silicon packging. So from driver's point of view there is no difference btw max1047 and max1050. This patch adds the support to dynamically detect the chip type and adds steps to initialize the max17047 chip. Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-05-05charger-manager: Provide cm_notify_event function for in-kernel useChanwoo Choi1-8/+17
By using cm_notify_event function, charger driver can report several charger events (e.g. battery full and external power in/out, etc) to Charger-Manager. Charger-Manager can properly and immediately control chargers by the reported event. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-05-05charger-manager: Poll battery health in normal stateChanwoo Choi1-0/+25
Charger-Manager needs to check battery health in normal state as well as suspend-to-RAM state. When the battery is fully charged, Charger-Manager needs to determine when the chargers restart charging. This patch allows Charger-Manager to monitor battery health in normal state and handle operation for chargers after battery is fully charged. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-03-26Add I2C driver for Summit Microelectronics SMB347 Battery Charger.Bruce E. Robertson1-0/+117
Driver support for the Summit I²C battery charger. This is used in some Intel devices. Signed-off-by: Bruce E. Robertson <bruce.e.robertson@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-03-26max17042: Add POR init procedure from Maxim appnoteRamakrishna Pallala1-0/+56
Add power on reset (POR) init procedure defined by the maxim appnote. Using this procedure ensures that the part is configured/initialized correctly at POR and improves early accuracy of the fuel gauge and informs the fuel gauge with the battery characterization parameters. The battery characterization parameters come from the maxim characterization procedure. Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com> Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-03-13max17042: Align register definitions with data sheet and init appnoteDirk Brandewie1-9/+28
align the register names with max17042 data sheet removing registers that are marked reserved that are not used. Add register definitions defined in the maxim initialization appnote Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-01-06sbs-battery: Rename internals to new nameRhyland Klein1-5/+5
Now that this driver is named more generally, this change updates the internal variables, defines and functions to use this new name. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06bq20z75: Rename to sbs-batteryRhyland Klein1-0/+0
This driver for the bq20z75 implemented the register spec defined by the SBS standard. As this is not unique to this the TI part this was originally written for, we can generalize this driver to show its support for any SBS compliant battery. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-04power_supply: Charger-Manager: Add properties for power-supply-classDonggeun Kim1-0/+17
Charger Manager provides power-supply-class aggregating information from multiple chargers and a fuel-gauge. 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: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-04power_supply: Add initial Charger-Manager driverDonggeun Kim1-0/+130
Because battery health monitoring should be done even when suspended, it needs to wake up and suspend periodically. Thus, userspace battery monitoring may incur too much overhead; every device and task is woken up periodically. Charger Manager uses suspend-again to provide in-suspend monitoring. This patch allows to monitor battery health in-suspend state. 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: Anton Vorontsov <cbouatmailru@gmail.com>
2011-07-08power_supply: MAX17042: Support additional propertiesDonggeun Kim1-0/+91
This patch supports additional properties (PRESENT, CYCLE_COUNT, VOLTAGE_MAX, VOLTAGE_MIN_DESIGN, CURRENT_NOW, CURRENT_AVG, CHARGE_FULL, and TEMP). Plus, initialization code for registers is added. 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: Anton Vorontsov <cbouatmailru@gmail.com>
2011-07-08bq20z75: Add support for external notificationRhyland Klein1-0/+3
Adding support for external power change notification. One problem found is that there is a lag time before the sensor will return a new status. To ensure that we only fire off the power_supply_changed event when the status returned from the sensor is actually different, we delay sending the the notification, and instead poll on it looking for a change. The amount of time to poll is configurable via platform data. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-04-20isp1704_charger: Allow board specific powering routineKalle Jokiniemi1-0/+29
The ISP1704/1707 chip can be put to full power down state by asserting the CHIP_SEL line. This patch enables platform or board specific hooks to put the device into power down mode in case not needed. This patch is a preparation for enabling this powering routine in n900 (rx-51) devices. Thanks to Heikki Krogerus for helping out with the patch. Signed-off-by: Kalle Jokiniemi <kalle.jokiniemi@nokia.com> Acked-By: Heikki Krogerus <heikki.krogerus@nokia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-04-20power_supply: Add driver for MAX8903 chargerMyungJoo Ham1-0/+57
MAX8903 is an integrated battery charger and selector with two power inputs (USB and AC adapter). This driver enables the charger, handles interrupts, and provides power-supply-class information to userland. Tested on Exynos4 NURI / S5PC210 SLP7 boards. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-03-01bq20z75: Add i2c retry mechanismRhyland Klein1-0/+2
With the support of platform data, now adding support for option i2c retries on read/write failures. Ths is specified through the optional platform data. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-03-01bq20z75: Add optional battery detect gpioRhyland Klein1-0/+37
Adding support for an optional gpio for battery detection. This is passed in through the i2c platform data. It also accepts another field, battery_detect_present to signify the gpio state which means the battery is present, either 0 (low) or 1 (high). Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-02-22bq27x00: Add bq27000 supportLars-Peter Clausen1-0/+19
This patch adds support for the bq27000 battery to the bq27x00 driver. The bq27000 is similar to the bq27200 except that it uses the HDQ bus instead of I2C to communicate with the host system. The driver is implemented as a platform driver. The driver expects to be provided with a read callback function through its platform data. The read function is assumed to do the lowlevel HDQ handling and read out the value of a certain register. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Grazvydas Ignotas <notasas@gmail.com>
2011-01-14power_supply: Add MAX17042 Fuel Gauge DriverMyungJoo Ham1-0/+30
The MAX17042 is a fuel gauge with an I2C interface for lithium-ion betteries. Unlike its predecessor MAX17040, MAX17042 uses 16bit registers. Besides, MAX17042 has much more features than MAX17040; e.g., a thermistor, current and current accumulation measurement, battery internal resistance estimate, average values of measurement, and others. This patch implements a driver for MAX17042. In this initial release, we have implemented the most basic features of a fuel gauge: measure the battery capacity and voltage. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2010-11-18power_supply: Add gpio charger driverLars-Peter Clausen1-0/+41
This patch adds a simple driver for chargers indicating their online status through a GPIO pin. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2010-08-05POWER: Add JZ4740 battery driver.Lars-Peter Clausen1-0/+24
Add support for the battery voltage measurement part of the JZ4740 ADC unit. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1416/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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