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path: root/drivers/power/charger-manager.c
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* workqueue: use mod_delayed_work() instead of cancel + queueTejun Heo2012-08-131-6/+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 Choi2012-07-131-0/+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 Choi2012-07-131-16/+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 Choi2012-05-051-0/+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 Choi2012-05-051-0/+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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