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path: root/drivers/power/jz4740-battery.c
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2014-10-20power: 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>
2013-11-15tree-wide: use reinit_completion instead of INIT_COMPLETIONWolfram Sang1-1/+1
Use this new function to make code more comprehensible, since we are reinitialzing the completion, not initializing. [akpm@linux-foundation.org: linux-next resyncs] Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13) Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-06-06jz4740-battery: Remove unnecessary platform_set_drvdata()Jingoo Han1-3/+1
The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-25power: Convert to devm_ioremap_resource()Thierry Reding1-3/+4
Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Cc: Anton Vorontsov <cbou@mail.ru> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linuxAnton Vorontsov1-3/+3
The merge is merely to fix conflicts before sending a pull request. Conflicts: drivers/power/ab8500_btemp.c drivers/power/ab8500_charger.c drivers/power/ab8500_fg.c drivers/power/abx500_chargalg.c drivers/power/max8925_power.c Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-11-28power: 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> 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>
2012-11-28power: 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> 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>
2012-11-28power: 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> 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>
2012-11-18jz4740-battery: Use devm_request_and_ioremapMarcos Paulo de Souza1-27/+6
No functional changes. Just a cleanup. Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-11-18jz4740-battery: Use devm_kzallocMarcos Paulo de Souza1-10/+4
This is just a small cleanup, makes a logic a little bit more simplier. Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
2012-08-13workqueue: use mod_delayed_work() instead of cancel + queueTejun Heo1-4/+2
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>
2012-01-06jz4740-battery: Fix signedness bugAxel Lin1-1/+1
wait_for_completion_interruptible_timeout() may return negative value. In this case, checking if (t > 0) will return true if t is unsigned. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-04power_supply: Convert drivers/power/* to use module_platform_driver()Axel Lin1-11/+1
This patch converts the drivers in drivers/power/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Cc: Mike Rapoport <mike@compulab.co.il> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Nithish Mahalingam <nithish.mahalingam@intel.com> Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Cc: Haojian Zhuang <haojian.zhuang@marvell.com> Cc: Balaji Rao <balajirrao@openmoko.org> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Clifton Barnes <cabarnes@indesign-llc.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-03-23jz4740: silence warnings related to mfd_get_cell changesAndres Salomon1-1/+1
mfd_get_cell returns a const, so change the jz4740 clients to store a const mfd cell. This silences type mismatch warnings. Signed-off-by: Andres Salomon <dilinger@queued.net> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-03-23mfd: mfd_cell is now implicitly available to jz4740 driversAndres Salomon1-1/+1
No need to explicitly set the cell's platform_data/data_size. Modify clients to use mfd_get_cell helper function instead of accessing platform_data directly. Signed-off-by: Andres Salomon <dilinger@queued.net> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-12-22jz4740-battery: Should include linux/io.hAnton Vorontsov1-0/+1
During test-build (with disabled 'depends on') I found that jz4740-battery driver lacks linux/io.h, which makes build break like this (on x86): CC [M] drivers/power/isp1704_charger.o jz4740-battery.c: In function 'jz_battery_read_voltage': jz4740-battery.c:84: error: implicit declaration of function 'readw’ jz4740-battery.c: In function 'jz_battery_probe': jz4740-battery.c:284: error: implicit declaration of function 'ioremap_nocache’ jz4740-battery.c:285: warning: assignment makes pointer from integer without a cast jz4740-battery.c:372: error: implicit declaration of function 'iounmap' make[2]: *** [drivers/power/jz4740-battery.o] Error 1 This patch fixes the issues, and thus makes it easier to build-test the driver for me. Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2010-11-18jz4740-battery: Check if platform_data is suppliedLars-Peter Clausen1-0/+5
Currently platform_data is dereferenced without checking whether it is actually set, which can lead to kernel crashes. This patch adds a check which will abort the drivers probe function gracefully if no platform_data is supplied. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2010-11-18jz4740-battery: Protect against concurrent battery readingsLars-Peter Clausen1-0/+7
We can not handle more then one ADC request at a time to the battery. The patch adds a mutex around the ADC read code to ensure this. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: stable@kernel.org Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2010-09-28jz4740-battery: Add missing kfree(jz_battery) in jz_battery_remove()Axel Lin1-0/+1
Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-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/+445
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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