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2014-09-25Merge tag 'tags/mfd-power-charger-regulator-v3.18' into nextSebastian Reichel3-37/+341
Immutable branch between MFD, Power, Charger and Regulator for v3.18
2014-09-25power: gpio-charger: do not use gpio value directlyHeiko Stuebner1-1/+1
Some gpio implementations return interesting values for gpio_get_value when the value is not 0 - as seen on a imx6sl board. Therefore do not use the value returned from gpio_get_value directly but simply check for 0 or not 0. Signed-off-by: Heiko Stuebner <heiko.stuebner@bq.com> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-25power: max8925: Use of_get_child_by_nameKrzysztof Kozlowski1-1/+1
Use of_get_child_by_name to obtain reference to charger node instead of of_find_node_by_name which can walk outside of the parent node. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-25power: max8925: Fix NULL ptr dereference on memory allocation failureKrzysztof Kozlowski1-1/+4
Check the return value of devm_kzalloc() to fix possible NULL pointer dereference and properly exit the probe() on memory allocation failure. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-25bq27x00_battery: Add support to bq27742Puthikorn Voravootivat1-7/+45
Add support to bq27742 in bq27x00 driver. bq27742 register addresses are mostly mostly the same as bq27500 addresses with minor differences. Signed-off-by: Puthikorn Voravootivat <puthik@chromium.org> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Reviewed-by: Rhyland Klein <rklein@nvidia.com> Reviewed-by: Benson Leung <bleung@chromium.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-24power: max17040: Add ID for MAX77836 Fuel Gauge blockKrzysztof Kozlowski1-1/+2
MAX77836 has the same Fuel Gauge as MAX17040/17048. The max17040 driver can be safely re-used. The patch adds MAX77836 device to the array of i2c_device_id. Additionally it removes the id associated with MAX17040 device as the value is not used. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-09-24charger: max14577: Configure battery-dependent settings from DTS and sysfsKrzysztof Kozlowski2-28/+284
Remove hard-coded values for: - Fast Charge current, - End Of Charge current, - Fast Charge timer, - Overvoltage Protection Threshold, - Battery Constant Voltage, and use DTS or sysfs to configure them. This allows using the max14577 charger driver with different batteries. Now the charger driver requires valid configuration data from DTS. In case of wrong configuration data it fails during probe. The fast charge timer is configured through sysfs entry. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-09-24charger: max14577: Add support for MAX77836 chargerKrzysztof Kozlowski2-17/+64
Add support for MAX77836 charger to the max14577 driver. The MAX77836 charger is almost the same as 14577 model except: - No dead-battery detection; - Support for special charger (like in MAX77693); - Support for DX over-voltage protection (like in MAX77693); - Lower values of charging current (two times lower current for slow/fast charge, much lower EOC current); - Slightly different values in ChgTyp field of STATUS2 register. On MAX14577 0x6 is reserved and 0x7 dead battery. On the MAX77836 the 0x6 means special charger and 0x7 is reserved. Regardless of these differences the driver maps them to one enum max14577_muic_charger_type. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-09-16power: reset: add LTC2952 poweroff driverRené Moll3-0/+394
This adds a driver for the LTC2952, an external power control chip, which signals the OS to shut down. Additionally this driver lets the kernel power down the board. Signed-off-by: René Moll <rene.moll@xsens.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power_supply: Don't iterate over devices to return -EPROBE_DEFERViresh Kumar1-13/+0
This piece of code was added so that we return -EPROBE_DEFER when no devices are registered. But even if class_for_each_device() returns 0, we are going to return -EPROBE_DEFER only. And so this code isn't required at all. Remove it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power-supply: Avoid unnecessary 'goto' statementsViresh Kumar2-17/+5
Using 'goto' statements for freeing resources on failures is a good choice as it makes code very clean, and reduces the chances of human errors. Though in most cases compiler may take care of this. But adding unnecessary 'goto' statements wouldn't make anything better. Code becomes less readable actually. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power-supply: Check for failures only when we can failViresh Kumar1-10/+11
In power_supply_show_property() routine, we call ->get_property() conditionally and should check for failure in that case only. There is no point comparing 'ret' for errors when 'ret' is surely zero. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power-supply: Use PTR_ERR_OR_ZERO() routineViresh Kumar1-6/+2
At multiple places we are doing exactly what PTR_ERR_OR_ZERO() does. And so that routine can be reused instead of increasing lines of code here. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power-supply: Mark 'if' blocks in power_supply_changed_work() with 'likely'Viresh Kumar1-5/+13
The 'if' statements in power_supply_changed_work() are mostly there for taking care of races and normally they will always evaluate to true. Optimize them for fast execution with 'likely' statements. Also there is need to have better comments in code to mention about the races clearly. Get them in place. Cc: Zoran Markovic <zrn.markovic@gmail.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power-supply: Drop useless 'if (ret.intval)' statementsViresh Kumar1-9/+5
There is no need to check the value of ret.intval before returning it, as we will be returning zero explicitly when ret.intval is zero. So essentially we will end up returning value of ret.intval as it is. Drop the unnecessary 'if' statements. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power-supply: Don't return -EINVAL from __power_supply_find_supply_from_node()Viresh Kumar1-7/+11
We need to stop 'class_for_each_device' loop when a supply matches with the of-node. In order to achieve this we currently return -EINVAL from __power_supply_populate_supplied_from() on successful match. class_for_each_device() is free to return similar errors in other cases as well and so the choice of return value here isn't particularly great. This commit isn't removing the Hack but making it more elegant by returning '1' instead. Also power_supply_find_supply_from_node() can return errors other than -EPROBE_DEFER now if class_for_each_device() fails. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power-supply: Propagate error returned by power_supply_find_supply_from_node()Viresh Kumar1-2/+2
Callers of power_supply_find_supply_from_node(), i.e. power_supply_check_supplies(), must propagate the errors returned by it instead of returning their own. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power-supply: Rearrange code to remove duplicate linesViresh Kumar1-2/+2
of_node_put() was called twice in power_supply_check_supplies() whereas a single call will also work. Rearrange code a bit to make that feasible. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power-supply: Use 'break' instead of 'continue' to end loopViresh Kumar1-2/+2
In few routines, we need to end the do-while loop when no more "power-supplies" are available. Currently we are doing 'continue' which will make the 'while(np)' conditional statement run again. Skip this by doing a 'break' instead. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power-supply: Drop unnecessary typecastsViresh Kumar1-4/+4
Typecast from 'void *' to any other pointer type falls under implicit typecasts category and so doesn't require explicit typecasts. Drop them. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power-supply: Return early if "power-supplies" property isn't validViresh Kumar1-0/+4
If power-supply's DT node doesn't have a valid "power-supplies" entry, then power_supply_check_supplies() should return early instead of trying to allocate memory for "supplied_from" array. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-16power-supply: Don't over-allocate memory for "supplied-from" arrayViresh Kumar1-1/+1
In routine power_supply_check_supplies(), 'cnt' is counting the number of supplies passed in "power-supplies" field of a node. The value of 'cnt' will always be one more than the number of supplies after the do-while loop ends. And so we need to allocate memory for 'cnt - 1' char pointers. But we are allocating memory for 'cnt' instead. Fix this by not over-allocating memory. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-06power: charger-manager: Remove casting the return value which is a void pointerJingoo Han1-1/+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>
2014-09-06power_supply: Add boot and calibration attributesRamakrishna Pallala1-0/+3
Usually PMIC's come with coulomb counting mechanism which can be used to implement a Fuel Gauginig solution in Software itself. One of key input to these SW Fuel Gauge solutioons is the boot up parameters like boot voltage and boot current. This patch adds the VOLTAGE_BOOT and CURRENT_BOOT power supply attributes to report bootup voltage and current. This patch also adds CALIBRATE power supply attribute which useful is for calibrating the battery/coulomb counter. Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-06power: charger-manager: Check charging state right after completed ↵Chanwoo Choi1-0/+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>
2014-09-06power: charger-manager: Fix checking of wrong return typeChanwoo Choi1-1/+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>
2014-09-06power/reset: xgene-reset: Fix prototype of xgene_restart()Mark Brown1-1/+1
The xgene-reset driver uses xgene_restart() as arm_pm_restart() but that function should take an enum reset_type as the first argument rather than a char. Fix this; the paramter is not referenced in the implementation. Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-06sbs-battery: add min design voltage to sbs-batterySimon Que1-2/+8
sbs-battery has a max design voltage but not a min design voltage field. The SBS spec only has one design voltage: http://www.sbs-forum.org/specs/sbdat110.pdf Currently this is being used for max design voltage. This patch uses it for min design voltage as well. Signed-off-by: Simon Que <sque@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Todd Broch <tbroch@chromium.org> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-06sbs-battery: export manufacturer and model name to sysfsCheng-Yi Chiang1-0/+115
This CL supports two power_supply_property items for smart battery: POWER_SUPPLY_PROP_MANUFACTURER and POWER_SUPPLY_PROP_MODEL_NAME such that battery information 'manufacturer' and 'model_name' can be exported to sysfs. Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org> Reviewed-by: Olof Johansson <olofj@chromium.org> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-09-01power: reset: at91-poweroff: fix wakeup status register indexNicolas Ferre1-1/+1
The wakeup status is read from Shutdown Status Register and not the SHDW_CR which is the one at address 0. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-09-01ARM: at91/power/reset: fix Kconfig "depends on" directiveNicolas Ferre1-2/+2
MACH_AT91 doesn't exist so we can't "depend" on it. Fix the typo by using the proper ARCH_AT91 config option. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-08-25Merge tag 'at91-drivers-for-3.17' of ↵Nicolas Ferre4-8/+435
git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux Pull AT91 reset, poweroff and ram drivers from Maxime Ripard: "This tag holds the various new drivers introduced to move code that used to be in mach-at91 over to the proper frameworks. These files are the reboot and poweroff code for all AT91 SoCs but the RM9200, and the ram controller driver is not doing much at the time, except for grabing the RAM clock in order to leave it always enabled." Conflicts: arch/arm/mach-at91/Kconfig
2014-08-08Merge tag 'soc-for-3.17' of ↵Linus Torvalds3-0/+74
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform changes from Olof Johansson: "This is the bulk of new SoC enablement and other platform changes for 3.17: - Samsung S5PV210 has been converted to DT and multiplatform - Clock drivers and bindings for some of the lower-end i.MX 1/2 platforms - Kirkwood, one of the popular Marvell platforms, is folded into the mvebu platform code, removing mach-kirkwood - Hwmod data for TI AM43xx and DRA7 platforms - More additions of Renesas shmobile platform support - Removal of plat-samsung contents that can be removed with S5PV210 being multiplatform/DT-enabled and the other two old platforms being removed New platforms (most with only basic support right now): - Hisilicon X5HD2 settop box chipset is introduced - Mediatek MT6589 (mobile chipset) is introduced - Broadcom BCM7xxx settop box chipset is introduced + as usual a lot other pieces all over the platform code" * tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (240 commits) ARM: hisi: remove smp from machine descriptor power: reset: move hisilicon reboot code ARM: dts: Add hix5hd2-dkb dts file. ARM: debug: Rename Hi3716 to HIX5HD2 ARM: hisi: enable hix5hd2 SoC ARM: hisi: add ARCH_HISI MAINTAINERS: add entry for Broadcom ARM STB architecture ARM: brcmstb: select GISB arbiter and interrupt drivers ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs ARM: configs: enable SMP in bcm_defconfig ARM: add SMP support for Broadcom mobile SoCs Documentation: arm: misc updates to Marvell EBU SoC status Documentation: arm: add URLs to public datasheets for the Marvell Armada XP SoC ARM: mvebu: fix build without platforms selected ARM: mvebu: add cpuidle support for Armada 38x ARM: mvebu: add cpuidle support for Armada 370 cpuidle: mvebu: add Armada 38x support cpuidle: mvebu: add Armada 370 support cpuidle: mvebu: rename the driver from armada-370-xp to mvebu-v7 ARM: mvebu: export the SCU address ...
2014-07-30power: reset: move hisilicon reboot codeHaojian Zhuang3-0/+74
Move reboot code from hisilicon platform driver into reset driver. Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Acked-by: Wei Xu <xuwei5@hisilicon.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2014-07-28ipaq_micro_battery: fix sparse non static symbol warningWei Yongjun1-1/+1
Fixes the following sparse warnings: drivers/power/ipaq_micro_battery.c:278:24: warning: symbol 'micro_batt_device_driver' was not declared. Should it be static? Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-24power: add driver for battery reading on iPaq h3xxxDmitry Artamonow3-0/+298
This adds a driver for reading the battery status of the battery connected to the Atmel microcontroller on the iPAQ h3xxx series. Based on a driver from handhelds.org 2.6.21 kernel, written by Alessandro GARDICH. Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-23power: twl4030_charger: detect battery presence prior to enabling chargerNishanth Menon1-1/+43
TWL4030's Battery Charger seems to be designed for non-hotpluggable batteries. If battery is not present in the system, BATSTS is always set with the expectation that software will take actions to move to a required safe state (could be power down or disable various charger paths). It does not seem possible even by manipulating the edge detection of the event (using BCIEDR2 register) to have a consistent hotplug handling. This seems to be the result of BATSTS interrupt generated when the thermistor of the battery pack is disconnected from the dedicated ADIN1 pin. Clearing the status just results in the status being regenerated by the monitoring ADC(MADC) and disabling the edges of event just makes hotplug no longer function. The only other option is to disable the detection of the MADC by disabling BCIMFEN4::BATSTSMCHGEN (battery presence detector) - but then, we can never again detect battery reconnection. So, detect battery presence based on precharge(which is hardware automatic state) or default main charger configuration at the time of probe and enable charger logic only if battery was present. Reported-by: Russell King <linux@arm.linux.org.uk> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-23power: reset: Add reboot driver for brcmstbMarc Carino3-0/+132
Add support for reboot functionality on boards with ARM-based Broadcom STB chipsets. Make it built-in by default for ARCH_BRCMSTB, but allow it to be configurable under COMPILE_TEST. Signed-off-by: Marc Carino <marc.ceeeee@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-20power_supply: Fix sparse non static symbol warningWei Yongjun1-1/+2
Fixes the following sparse warnings: drivers/power/power_supply_core.c:540:5: warning: symbol '__power_supply_register' was not declared. Should it be static? Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-18power_supply: Add inlmt,iterm, min/max temp propsJenny TC1-0/+4
Add new power supply properties for input current, charge termination current, min and max temperature POWER_SUPPLY_PROP_TEMP_MIN - minimum operatable temperature POWER_SUPPLY_PROP_TEMP_MAX - maximum operatable temperature POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT - input current limit programmed by charger. Indicates the input current for a charging source. POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT - Charge termination current used to detect the end of charge condition Signed-off-by: Jenny TC <jenny.tc@intel.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-18charger: tps65090: Allow charger module to be used when no irqDoug Anderson1-17/+59
On the ARM Chromebook tps65090 has two masters: the AP (the main processor running linux) and the EC (the embedded controller). The AP is allowed to mess with FETs but the EC is in charge of charge control. The tps65090 interupt line is routed to both the AP and the EC, which can cause quite a headache. Having two people adjusting masks and acking interrupts is a recipe for disaster. In the shipping kernel we had a hack to have the AP pay attention to the IRQ but not to ack it. It also wasn't supposed to configure the IRQ in any way. That hack allowed us to detect when the device was charging without messing with the EC's state. The current tps65090 infrastructure makes the above difficult, and it was a bit of a hack to begin with. Rather than uglify the driver to support it, just extend the driver's existing notion of "no irq" to the charger. This makes the charger code poll every 2 seconds for AC detect, which is sufficient. For proper functioning, requires (mfd: tps65090: Don't tell child devices we have an IRQ if we don't). If we don't have that patch we'll simply fail to probe on devices without an interrupt (just like we did before this patch). Signed-off-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> [sre@kernel.org: Use -ENXIO instead of NO_IRQ for missing interrupt, since NO_IRQ is not available on all architectures.] Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-18power/reset: Fix GPL v2 license string typoBjorn Helgaas1-1/+1
Per license_is_gpl_compatible(), the MODULE_LICENSE() string for GPL v2 is "GPL v2", not "GPLv2". Use "GPL v2" so this module doesn't taint the kernel. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-18power: poweroff: gpio: convert to use descriptorsLinus Walleij1-33/+19
This switches the GPIO poweroff driver to use GPIO descriptors rather than numeral GPIOs. We get rid of the specific inversion handling as GPIO descriptors know if they are active low or high and can assert the line properly, so we do not need to check the flag OF_GPIO_ACTIVE_LOW returned from the old call of_get_gpio_flags() anymore. Also convert to use managed resources and use dev_* message printing while we're at it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-18bq27000: report missing device better.Marek Belisko1-0/+3
One an hdq buss, a missing device reads as 0xff, not -1. So do a translation to allow detecting of a missing bus. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-18bq27x00_battery: Introduce the use of the managed version of kzallocHimangi Saraogi1-20/+5
This patch moves data allocated using kzalloc to managed data allocated using devm_kzalloc and cleans now unnecessary kfrees in probe and remove functions for both platform and i2c drivers. Also, the unecessary variable ret and labels batt_failed3, err_free were removed. The following Coccinele script was used for making the change: @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e, e1, e2; @@ probefn(struct platform_device *pdev, ...) { <+... - e = kzalloc(e1, e2) + e = devm_kzalloc(&pdev->dev, e1, e2) ... ?-kfree(e); ...+> } @rem depends on prb@ identifier platform.removefn; expression e; @@ removefn(...) { <... - kfree(e); ...> } Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-18rx51_battery: convert to iio consumerSebastian Reichel1-24/+66
Update rx51-battery driver to use the new IIO API of twl4030-madc and add DT support. Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-18bq2415x_charger: Fix Atomic Sleep BugSebastian Reichel1-2/+6
Move sysfs_notify and i2c_transfer calls from bq2415x_notifier_call to bq2415x_timer_work to avoid sleeping in atomic context. This fixes the following bug: [ 7.667449] Workqueue: events power_supply_changed_work [ 7.673034] [<c0015c28>] (unwind_backtrace+0x0/0xe0) from [<c0011e1c>] (show_stack+0x10/0x14) [ 7.682098] [<c0011e1c>] (show_stack+0x10/0x14) from [<c052cdd0>] (dump_stack+0x78/0xac) [ 7.690704] [<c052cdd0>] (dump_stack+0x78/0xac) from [<c052a044>] (__schedule_bug+0x48/0x60) [ 7.699645] [<c052a044>] (__schedule_bug+0x48/0x60) from [<c053071c>] (__schedule+0x74/0x638) [ 7.708618] [<c053071c>] (__schedule+0x74/0x638) from [<c05301fc>] (schedule_timeout+0x1dc/0x24c) [ 7.718017] [<c05301fc>] (schedule_timeout+0x1dc/0x24c) from [<c05316ec>] (wait_for_common+0x138/0x17c) [ 7.727966] [<c05316ec>] (wait_for_common+0x138/0x17c) from [<c0362a70>] (omap_i2c_xfer+0x340/0x4a0) [ 7.737640] [<c0362a70>] (omap_i2c_xfer+0x340/0x4a0) from [<c035d928>] (__i2c_transfer+0x40/0x74) [ 7.747039] [<c035d928>] (__i2c_transfer+0x40/0x74) from [<c035e22c>] (i2c_transfer+0x6c/0x90) [ 7.756195] [<c035e22c>] (i2c_transfer+0x6c/0x90) from [<c037ad24>] (bq2415x_i2c_write+0x48/0x78) [ 7.765563] [<c037ad24>] (bq2415x_i2c_write+0x48/0x78) from [<c037ae60>] (bq2415x_set_weak_battery_voltage+0x4c/0x50) [ 7.776824] [<c037ae60>] (bq2415x_set_weak_battery_voltage+0x4c/0x50) from [<c037bce8>] (bq2415x_set_mode+0xdc/0x14c) [ 7.788085] [<c037bce8>] (bq2415x_set_mode+0xdc/0x14c) from [<c037bfb8>] (bq2415x_notifier_call+0xa8/0xb4) [ 7.798309] [<c037bfb8>] (bq2415x_notifier_call+0xa8/0xb4) from [<c005f228>] (notifier_call_chain+0x38/0x68) [ 7.808715] [<c005f228>] (notifier_call_chain+0x38/0x68) from [<c005f284>] (__atomic_notifier_call_chain+0x2c/0x3c) [ 7.819732] [<c005f284>] (__atomic_notifier_call_chain+0x2c/0x3c) from [<c005f2a8>] (atomic_notifier_call_chain+0x14/0x18) [ 7.831420] [<c005f2a8>] (atomic_notifier_call_chain+0x14/0x18) from [<c0378078>] (power_supply_changed_work+0x6c/0xb8) [ 7.842864] [<c0378078>] (power_supply_changed_work+0x6c/0xb8) from [<c00556c0>] (process_one_work+0x248/0x440) [ 7.853546] [<c00556c0>] (process_one_work+0x248/0x440) from [<c0055d6c>] (worker_thread+0x208/0x350) [ 7.863372] [<c0055d6c>] (worker_thread+0x208/0x350) from [<c005b0ac>] (kthread+0xc8/0xdc) [ 7.872131] [<c005b0ac>] (kthread+0xc8/0xdc) from [<c000e138>] (ret_from_fork+0x14/0x3c) Fixes: 32260308b4ca ("bq2415x_charger: Use power_supply notifier for automode") Cc: <stable@vger.kernel.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2014-07-15power: reset: Add AT91 poweroff driverMaxime Ripard3-0/+165
Add a driver to handle the shutdown of the Atmel SoCs. This code used to be (and still is) in arch/arm/mach-at91. We didn't remove it yet so that we can convert all the boards to using this driver, before removing it entirely in a separate patch. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2014-07-15power: reset: Add AT91 reset driverMaxime Ripard3-0/+261
Implement the reset behaviour of the various AT91 SoCS in drivers/power/reset. It used to be (and still is) located in arch/arm/mach-at91, and in order to preserve bisectability is not removed yet, but every board should be converted to use this driver instead. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2014-07-15power: reset: Add if statement instead of multiple depends onMaxime Ripard1-8/+9
All the config option so far are depending on the POWER_RESET symbol Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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