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* power: charger-manager: Fix NULL pointer exception with missing cm-fuel-gaugeKrzysztof Kozlowski2014-09-261-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NULL pointer exception happens during charger-manager probe if 'cm-fuel-gauge' property is not present. [ 2.448536] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 2.456572] pgd = c0004000 [ 2.459217] [00000000] *pgd=00000000 [ 2.462759] Internal error: Oops: 5 [#1] PREEMPT SMP ARM [ 2.468047] Modules linked in: [ 2.471089] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.17.0-rc6-00251-ge44cf96cd525-dirty #969 [ 2.479765] task: ea890000 ti: ea87a000 task.ti: ea87a000 [ 2.485161] PC is at strcmp+0x4/0x30 [ 2.488719] LR is at power_supply_match_device_by_name+0x10/0x1c [ 2.494695] pc : [<c01f4220>] lr : [<c030fe38>] psr: a0000113 [ 2.494695] sp : ea87bde0 ip : 00000000 fp : eaa97010 [ 2.506150] r10: 00000004 r9 : ea97269c r8 : ea3bbfd0 [ 2.511360] r7 : eaa97000 r6 : c030fe28 r5 : 00000000 r4 : ea3b0000 [ 2.517869] r3 : 0000006d r2 : 00000000 r1 : 00000000 r0 : c057c195 [ 2.524381] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [ 2.531671] Control: 10c5387d Table: 4000404a DAC: 00000015 [ 2.537399] Process swapper/0 (pid: 1, stack limit = 0xea87a240) [ 2.543388] Stack: (0xea87bde0 to 0xea87c000) [ 2.547733] bde0: ea3b0210 c026b1c8 eaa97010 eaa97000 eaa97010 eabb60a8 ea3b0210 00000000 [ 2.555891] be00: 00000008 ea2db210 ea1a3410 c030fee0 ea3bbf90 c03138fc c068969c c013526c [ 2.564050] be20: eaa040c0 00000000 c068969c 00000000 eaa040c0 ea2da300 00000002 00000000 [ 2.572208] be40: 00000001 ea2da3c0 00000000 00000001 00000000 eaa97010 c068969c 00000000 [ 2.580367] be60: 00000000 c068969c 00000000 00000002 00000000 c026b71c c026b6f0 eaa97010 [ 2.588527] be80: c0e82530 c026a330 00000000 eaa97010 c068969c eaa97044 00000000 c061df50 [ 2.596686] bea0: ea87a000 c026a4dc 00000000 c068969c c026a448 c0268b5c ea8054a8 eaa8fd50 [ 2.604845] bec0: c068969c ea2db180 c06801f8 c0269b18 c0590f68 c068969c c0656c98 c068969c [ 2.613004] bee0: c0656c98 ea3bbe40 c06988c0 c026aaf0 00000000 c0656c98 c0656c98 c00088a4 [ 2.621163] bf00: 00000000 c0055f48 00000000 00000004 00000000 ea890000 c05dbc54 c062c178 [ 2.629323] bf20: c0603518 c005f674 00000001 ea87a000 eb7ff83b c0476440 00000091 c003d41c [ 2.637482] bf40: c05db344 00000007 eb7ff858 00000007 c065a76c c0647d24 00000007 c062c170 [ 2.645642] bf60: c06988c0 00000091 c062c178 c0603518 00000000 c0603cc4 00000007 00000007 [ 2.653801] bf80: c0603518 c0c0c0c0 00000000 c0453948 00000000 00000000 00000000 00000000 [ 2.661959] bfa0: 00000000 c0453950 00000000 c000e728 00000000 00000000 00000000 00000000 [ 2.670118] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 2.678277] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 c0c0c0c0 c0c0c0c0 [ 2.686454] [<c01f4220>] (strcmp) from [<c030fe38>] (power_supply_match_device_by_name+0x10/0x1c) [ 2.695303] [<c030fe38>] (power_supply_match_device_by_name) from [<c026b1c8>] (class_find_device+0x54/0xac) [ 2.705106] [<c026b1c8>] (class_find_device) from [<c030fee0>] (power_supply_get_by_name+0x1c/0x30) [ 2.714137] [<c030fee0>] (power_supply_get_by_name) from [<c03138fc>] (charger_manager_probe+0x3d8/0xe58) [ 2.723683] [<c03138fc>] (charger_manager_probe) from [<c026b71c>] (platform_drv_probe+0x2c/0x5c) [ 2.732532] [<c026b71c>] (platform_drv_probe) from [<c026a330>] (driver_probe_device+0x10c/0x224) [ 2.741384] [<c026a330>] (driver_probe_device) from [<c026a4dc>] (__driver_attach+0x94/0x98) [ 2.749813] [<c026a4dc>] (__driver_attach) from [<c0268b5c>] (bus_for_each_dev+0x54/0x88) [ 2.757969] [<c0268b5c>] (bus_for_each_dev) from [<c0269b18>] (bus_add_driver+0xd4/0x1d0) [ 2.766123] [<c0269b18>] (bus_add_driver) from [<c026aaf0>] (driver_register+0x78/0xf4) [ 2.774110] [<c026aaf0>] (driver_register) from [<c00088a4>] (do_one_initcall+0x80/0x1bc) [ 2.782276] [<c00088a4>] (do_one_initcall) from [<c0603cc4>] (kernel_init_freeable+0x100/0x1cc) [ 2.790952] [<c0603cc4>] (kernel_init_freeable) from [<c0453950>] (kernel_init+0x8/0xec) [ 2.799029] [<c0453950>] (kernel_init) from [<c000e728>] (ret_from_fork+0x14/0x2c) [ 2.806572] Code: e12fff1e e1a03000 eafffff7 e4d03001 (e4d12001) [ 2.812832] ---[ end trace 7f12556111b9e7ef ]--- Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: <stable@vger.kernel.org> Fixes: 856ee6115e2d ("charger-manager: Support deivce tree in charger manager driver") Signed-off-by: Sebastian Reichel <sre@kernel.org>
* power: charger-manager: Remove casting the return value which is a void pointerJingoo Han2014-09-061-1/+1
| | | | | | | | | Casting the return value which is a void pointer is redundant. The conversion from void pointer to any other pointer type is guaranteed by the C programming language. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* power: charger-manager: Check charging state right after completed ↵Chanwoo Choi2014-09-061-0/+7
| | | | | | | | | | | | | | initialization This patch check the charging state after completed initialization of charger- manager and update current charging state. If charger-manager never check and update current charging state, charger-manager would have the mismatch issue between real state of cable connection and the charging state of charger-manager until first polling time of charger-manager. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* power: charger-manager: Fix checking of wrong return typeChanwoo Choi2014-09-061-1/+1
| | | | | | | | | | | | | | This patch fix minor issue about checking wrong return type. The of_cm_parse_desc() return ERR_PTR(errnor number) when some error happen in this function. But, charger_manager_probe() has only checked whether desc is NULL or not. If of_cm_parse_desc() returns ERR_PTR(-ENOMEM), desc isn't NULL but desc is (void *)(-ENOMEM). Althouhg some error happen for parsing DT, charger_manager_probe() can't detect error of desc instance. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
* charger-manager: of_cm_parse_desc() should be staticAnton Vorontsov2013-12-241-1/+1
| | | | | | | | | Fixes the following warning: drivers/power/charger-manager.c:1539:21: warning: symbol 'of_cm_parse_desc' was not declared. Should it be static? Signed-off-by: Anton Vorontsov <anton@enomsg.org>
* charger-manager: Support deivce tree in charger manager driverJonghwa Lee2013-12-241-3/+135
| | | | | | | | | Charger-manager can parse charger_desc data from devicetree which is used to register charger manager. Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
* charger-manager: Modify the way of checking battery's temperatureJonghwa Lee2013-12-241-41/+120
| | | | | | | | | | | | | | | | | | | Charger-manager driver used to check battery temperature through the callback function passed by platform data. Unfortunatley, without that pre-defined callback function, charger-manager can't get battery's temperature at all. Also passing callback function through platform data ruins DT support for charger-manager. This patch mondifies charger-manager driver to get temperature of battery without pre-defined callback function. Now, charger-manager can use either of battery thermometer in fuel-gauge and ouside of battery. It uses thermal framework interface for outer thermometer if thermal fw is enabled. Otherwise, it tries to use fuel-gauge's through the power supply interface. Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
* charger-manager : Replace kzalloc to devm_kzalloc and remove uneccessary codeJonghwa Lee2013-10-261-58/+27
| | | | | | | | Use devm function for dynamic memory allocation. Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
* charger-manager: Fix regulator_get() return checkJonghwa Lee2013-06-291-3/+2
| | | | | | | | | | | This patch fixes return value checking of regulator_get() in charger-manager driver. The API, regulator_get(), returns ERR_PTR() when it fails to get regulator with given name, not NULL. Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
* charger-manager: Fix a bug when it unregisters notifier block of extconJonghwa Lee2013-06-291-1/+3
| | | | | | | | | | | | | | | | This patch prevents NULL pointer error cauesed by unregistering unregistered exton notifier block. At the probing time of charger manager, it tries to remove extcon notifier block when it fails to initialize them. It has to be applied for only registered one. Otherwise, it'd make kernel panic. To make it work right, it checks extcon_specific_cable_nb's extcon_dev node. If extcon cable notifier block was registered successfully, it has proper extcon_dev pointer if not so it has NULL pointer. Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
* charger-manager: Add missing newlines, fix a couple of typos, add pr_fmtJoe Perches2013-06-091-80/+57
| | | | | | | | | | | | | | | | Make sure that dev_<level> calls are newline terminated. Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt to prefix all pr_<level> calls with "charger-manager: " Fix a couple of typos. Fix formats with terminating n that should be \n. Coalesce formats for easier grep. Align arguments to open parenthesis for these dev_<level> calls. Add missing spaces after coalescing multiple string segments. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
* charger-manager: Ensure event is not used as format stringKees Cook2013-06-071-1/+1
| | | | | | | | | | | | The exposed interface for cm_notify_event() could result in the event msg string being parsed as a format string. Make sure it is only used as a literal string. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: stable@vger.kernel.org Cc: Anton Vorontsov <cbou@mail.ru> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
* charger-manager: Use kmemdup instead of kzalloc + memcpyAndrei Epure2013-04-171-2/+1
| | | | | | | Patch found using coccinelle. Signed-off-by: Andrei Epure <epure.andrei@gmail.com> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
* charger_manager: Don't use [delayed_]work_pending()Tejun Heo2013-01-051-15/+16
| | | | | | | | | | | | | | | | | | | | | | | There's no need to test whether a (delayed) work item in pending before queueing, flushing or cancelling it. Most uses are unnecessary and quite a few of them are buggy. Remove unnecessary pending tests and rewrite _setup_polling() so that it uses mod_delayed_work() if the next polling interval is sooner than currently scheduled. queue_delayed_work() is used otherwise. Only compile tested. I noticed that two work items - setup_polling and cm_monitor_work - schedule each other. It's a very unusual construct and I'm fairly sure it's racy. You can't break such circular dependency by calling cancel on each. I strongly recommend revising the mechanism. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Anton Vorontsov <cbou@mail.ru> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Donggeun Kim <dg77.kim@samsung.com> Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
* charger-manager: Split _probe funtion to make the code more cleanChanwoo Choi2013-01-051-111/+168
| | | | | | | | | | This patch split _probe function for readability because _probe function is longer than 400 line. 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>
* charger-manager: Fix bug when check dropped voltage after fullbatt eventChanwoo Choi2012-12-171-2/+3
| | | | | | | | | | | | | This patch check difference value between current voltage of battery and desc->fullbatt_uV whether positve or negative number. If difference value is negative number when current voltage of battery is larger than desc->fullbatt_uV, charger-manager return immediately because battery is fully charged. 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>
* charger-manager: Fix bug related to checking fully charged state of batteryChanwoo Choi2012-12-171-20/+13
| | | | | | | | | | | | | This patch fix bug related to checking fully charged state of battery when charger-manager call is_full_charged() function. After reading property of charger/fuel-gauge through power_supply API, val.intval is more than 1. So, is_full_charged() function always return true. If true, battery means fully charged state. 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>
* power: remove use of __devexitBill Pemberton2012-11-281-1/+1
| | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Anton Vorontsov <cbou@mail.ru> Cc: David Woodhouse <dwmw2@infradead.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* power: remove use of __devexit_pBill Pemberton2012-11-281-1/+1
| | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Anton Vorontsov <cbou@mail.ru> Cc: David Woodhouse <dwmw2@infradead.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'for-v3.7' of git://git.infradead.org/battery-2.6Linus Torvalds2012-10-071-49/+385
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 ...
| * charger-manager: Add support sysfs entry for chargerChanwoo Choi2012-09-221-0/+172
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * charger-manager: Support limit of maximum possibleChanwoo Choi2012-09-211-1/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * charger-manager: Check fully charged state of battery periodicallyChanwoo Choi2012-09-211-45/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * charger-manager: Use replacement variable to check state of batteryChanwoo Choi2012-08-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | 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>
| * charger-manager: Disable regulator when charger cable is detachedChanwoo Choi2012-08-231-2/+17
| | | | | | | | | | | | | | | | | | | | | | | | This patch disable regulator for charging when charger cable is detached before stopping charging forcibly on abnormal battery state and check return value of regulator_enable/disable() function to confirm correct operation of enabling or disabling regulator for charging. 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>
* | workqueue: use mod_delayed_work() instead of cancel + queueTejun Heo2012-08-141-6/+3
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert delayed_work users doing cancel_delayed_work() followed by queue_delayed_work() to mod_delayed_work(). Most conversions are straight-forward. Ones worth mentioning are, * drivers/edac/edac_mc.c: edac_mc_workq_setup() converted to always use mod_delayed_work() and cancel loop in edac_mc_reset_delay_period() is dropped. * drivers/platform/x86/thinkpad_acpi.c: No need to remember whether watchdog is active or not. @fan_watchdog_active and related code dropped. * drivers/power/charger-manager.c: Seemingly a lot of delayed_work_pending() abuse going on here. [delayed_]work_pending() are unsynchronized and racy when used like this. I converted one instance in fullbatt_handler(). Please conver the rest so that it invokes workqueue APIs for the intended target state rather than trying to game work item pending state transitions. e.g. if timer should be modified - call mod_delayed_work(), canceled - call cancel_delayed_work[_sync](). * drivers/thermal/thermal_sys.c: thermal_zone_device_set_polling() simplified. Note that round_jiffies() calls in this function are meaningless. round_jiffies() work on absolute jiffies not delta delay used by delayed_work. v2: Tomi pointed out that __cancel_delayed_work() users can't be safely converted to mod_delayed_work(). They could be calling it from irq context and if that happens while delayed_work_timer_fn() is running, it could deadlock. __cancel_delayed_work() users are dropped. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Acked-by: David Howells <dhowells@redhat.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Doug Thompson <dougthompson@xmission.com> Cc: David Airlie <airlied@linux.ie> Cc: Roland Dreier <roland@kernel.org> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Len Brown <len.brown@intel.com> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Johannes Berg <johannes@sipsolutions.net>
* charger-manager: Set current limit of regulator for over current protectionChanwoo Choi2012-07-141-0/+15
| | | | | | | | | | | | 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>
* charger-manager: Use EXTCON Subsystem to detect charger cables for chargingChanwoo Choi2012-07-141-16/+121
| | | | | | | | | | | | 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>
* charger-manager: Provide cm_notify_event function for in-kernel useChanwoo Choi2012-05-061-0/+163
| | | | | | | | | | | | 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>
* charger-manager: Poll battery health in normal stateChanwoo Choi2012-05-061-0/+229
| | | | | | | | | | | | | | 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>
* charger-manager: Simplify charger_get_property(), get rid of a warningAnton Vorontsov2012-03-261-3/+3
| | | | | | | | | | | This patch fixes the following warning and makes the code a little bit more simpler: CC drivers/power/charger-manager.o charger-manager.c: In function 'charger_get_property': charger-manager.c:429:15: warning: 'i' may be used uninitialized in this function [-Wuninitialized] Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
* charger-manager: Clean up for better readabilityAxel Lin2012-03-261-35/+26
| | | | | | | | | | | | | This patch includes below changes: * Some code change for better readability. * Current code in probe already ensures desc->charger_regulators is not NULL. No need to check if it is NULL or not before calling regulator_bulk_free(). * Use dev_get_drvdata() in cm_suspend_prepare() and cm_suspend_complete() Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
* power_supply: Fix modalias for charger-managerAxel Lin2012-02-011-2/+2
| | | | | | | | | | | | | Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is prefixed with "platform:". Current code has the id_table, thus add MODULE_DEVICE_TABLE will automatically setup the modalias. Also make charger_manager_id static as it is only used in this driver. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
* power_supply: Charger-Manager: Add properties for power-supply-classDonggeun Kim2012-01-041-1/+294
| | | | | | | | | | 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>
* power_supply: Add initial Charger-Manager driverDonggeun Kim2012-01-041-0/+779
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>
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