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2017-10-28power: Adds support for Smart Battery System ManagerKarl-Heinz Schneider
This patch adds support for Smart Battery System Manager. A SBSM is a device listening at I2C/SMBus address 0x0a and is capable of communicating up to four I2C smart battery devices. All smart battery devices are listening at address 0x0b, so the SBSM muliplexes between them. The driver makes use of the I2C-Mux framework to allow smart batteries to be bound via device tree, i.e. the sbs-battery driver. Via sysfs interface the online state and charge type are presented. If the driver is bound as ltc1760 (an implementation of a Dual Smart Battery System Manager) the charge type can also be changed from trickle to fast. Signed-off-by: Karl-Heinz Schneider <karl-heinz@schneider-inet.de> Signed-off-by: Phil Reid <preid@electromag.com.au> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-10-23extcon: Split out extcon header file for consumer and provider deviceChanwoo Choi
The extcon has two type of extcon devices as following. - 'extcon provider deivce' adds new extcon device and detect the state/properties of external connector. Also, it notifies the state/properties to the extcon consumer device. - 'extcon consumer device' gets the change state/properties from extcon provider device. Prior to that, include/linux/extcon.h contains all exported API for both provider and consumer device driver. To clarify the meaning of header file and to remove the wrong use-case on consumer device, this patch separates into extcon.h and extcon-provider.h. [Description for include/linux/{extcon.h|extcon-provider.h}] - extcon.h includes the extcon API and data structure for extcon consumer device driver. This header file contains the following APIs: : Register/unregister the notifier to catch the change of extcon device : Get the extcon device instance : Get the extcon device name : Get the state of each external connector : Get the property value of each external connector : Get the property capability of each external connector - extcon-provider.h includes the extcon API and data structure for extcon provider device driver. This header file contains the following APIs: : Include 'include/linux/extcon.h' : Allocate the memory for extcon device instance : Register/unregister extcon device : Set the state of each external connector : Set the property value of each external connector : Set the property capability of each external connector Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-10-12treewide: Fix typos in KconfigMasanari Iida
This patch fixes some spelling typos found in Kconfig files. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-10-11PM / AVS: Use %pS printk format for direct addressesHelge Deller
Use the %pS instead of the %pF printk format specifier for printing symbols from direct addresses. This is needed for the ia64, ppc64 and parisc64 architectures. Signed-off-by: Helge Deller <deller@gmx.de> Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-09-09Merge tag 'for-v4.14' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply and reset changes from Sebastian Reichel: "New chip/feature support: - bq27xxx: support updating battery config from DT - bq24190: support loading battery charge info from DT - LTC2941: add LTC2942/LTC2944 support - max17042: add ACPI support - max1721x: new driver Misc: - Move bq27xxx w1 driver from w1 into power-supply subsystem - Introduce power_supply_set_input_current_limit_from_supplier - constify stuff - some minor fixes" * tag 'for-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (39 commits) power: supply: bq27xxx: enable writing capacity values for bq27421 power: supply: bq24190_charger: Get input_current_limit from our supplier power: supply: bq24190_charger: Export 5V boost converter as regulator power: supply: bq24190_charger: Add power_supply_battery_info support power: supply: bq24190_charger: Add property system-minimum-microvolt power: supply: bq24190_charger: Enable devicetree config dt-bindings: power: supply: Add docs for TI BQ24190 battery charger power: supply: bq27xxx: Remove duplicate chip data arrays power: supply: bq27xxx: Enable data memory update for certain chips power: supply: bq27xxx: Add chip IDs for previously shadowed chips power: supply: bq27xxx: Create single chip data table power: supply: bq24190_charger: Add ti,bq24192i to devicetree table power: supply: bq24190_charger: Add input_current_limit property power: supply: Add power_supply_set_input_current_limit_from_supplier helper power: supply: max17042_battery: Fix compiler warning power: supply: core: Delete two error messages for a failed memory allocation in power_supply_check_supplies() power: supply: make device_attribute const power: supply: max17042_battery: Fix ACPI interrupt issues power: supply: max17042_battery: Add support for ACPI enumeration power: supply: lp8788: Make several arrays static const * const ...
2017-09-07Merge tag 'mfd-next-4.14' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers - RK805 Power Management IC (PMIC) - ROHM BD9571MWV-M MFD Power Management IC (PMIC) - Texas Instruments TPS68470 Power Management IC (PMIC) & LEDs New Device Support: - Add support for HiSilicon Hi6421v530 to hi6421-pmic-core - Add support for X-Powers AXP806 to axp20x - Add support for X-Powers AXP813 to axp20x - Add support for Intel Sunrise Point LPSS to intel-lpss-pci New Functionality: - Amend API to provide register layout; atmel-smc Fix-ups: - DT re-work; omap, nokia - Header file location change {I2C => MFD}; dm355evm_msp, tps65010 - Fix chip ID formatting issue(s); rk808 - Optionally register touchscreen devices; da9052-core - Documentation improvements; twl-core - Constification; rtsx_pcr, ab8500-core, da9055-i2c, da9052-spi - Drop unnecessary static declaration; max8925-i2c - Kconfig changes (missing deps and remove module support) - Slim down oversized licence statement; hi6421-pmic-core - Use managed resources (devm_*); lp87565 - Supply proper error checking/handling; t7l66xb Bug Fixes: - Fix counter duplication issue; da9052-core - Fix potential NULL deference issue; max8998 - Leave SPI-NOR write-protection bit alone; lpc_ich - Ensure device is put into reset during suspend; intel-lpss - Correct register offset variable size; omap-usb-tll" * tag 'mfd-next-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (61 commits) mfd: intel_soc_pmic: Differentiate between Bay and Cherry Trail CRC variants mfd: intel_soc_pmic: Export separate mfd-cell configs for BYT and CHT dt-bindings: mfd: Add bindings for ZII RAVE devices mfd: omap-usb-tll: Fix register offsets mfd: da9052: Constify spi_device_id mfd: intel-lpss: Put I2C and SPI controllers into reset state on suspend mfd: da9055: Constify i2c_device_id mfd: intel-lpss: Add missing PCI ID for Intel Sunrise Point LPSS devices mfd: t7l66xb: Handle return value of clk_prepare_enable mfd: Add ROHM BD9571MWV-M PMIC DT bindings mfd: intel_soc_pmic_chtwc: Turn Kconfig option into a bool mfd: lp87565: Convert to use devm_mfd_add_devices() mfd: Add support for TPS68470 device mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Haswell/Broadwell mfd: syscon: atmel-smc: Add helper to retrieve register layout mfd: axp20x: Use correct platform device ID for many PEK dt-bindings: mfd: axp20x: Introduce bindings for AXP813 mfd: axp20x: Add support for AXP813 PMIC dt-bindings: mfd: axp20x: Add AXP806 to supported list of chips mfd: Add ROHM BD9571MWV-M MFD PMIC driver ...
2017-09-05Merge tag 'pm-4.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "This time (again) cpufreq gets the majority of changes which mostly are driver updates (including a major consolidation of intel_pstate), some schedutil governor modifications and core cleanups. There also are some changes in the system suspend area, mostly related to diagnostics and debug messages plus some renames of things related to suspend-to-idle. One major change here is that suspend-to-idle is now going to be preferred over S3 on systems where the ACPI tables indicate to do so and provide requsite support (the Low Power Idle S0 _DSM in particular). The system sleep documentation and the tools related to it are updated too. The rest is a few cpuidle changes (nothing major), devfreq updates, generic power domains (genpd) framework updates and a few assorted modifications elsewhere. Specifics: - Drop the P-state selection algorithm based on a PID controller from intel_pstate and make it use the same P-state selection method (based on the CPU load) for all types of systems in the active mode (Rafael Wysocki, Srinivas Pandruvada). - Rework the cpufreq core and governors to make it possible to take cross-CPU utilization updates into account and modify the schedutil governor to actually do so (Viresh Kumar). - Clean up the handling of transition latency information in the cpufreq core and untangle it from the information on which drivers cannot do dynamic frequency switching (Viresh Kumar). - Add support for new SoCs (MT2701/MT7623 and MT7622) to the mediatek cpufreq driver and update its DT bindings (Sean Wang). - Modify the cpufreq dt-platdev driver to autimatically create cpufreq devices for the new (v2) Operating Performance Points (OPP) DT bindings and update its whitelist of supported systems (Viresh Kumar, Shubhrajyoti Datta, Marc Gonzalez, Khiem Nguyen, Finley Xiao). - Add support for Ux500 to the cpufreq-dt driver and drop the obsolete dbx500 cpufreq driver (Linus Walleij, Arnd Bergmann). - Add new SoC (R8A7795) support to the cpufreq rcar driver (Khiem Nguyen). - Fix and clean up assorted issues in the cpufreq drivers and core (Arvind Yadav, Christophe Jaillet, Colin Ian King, Gustavo Silva, Julia Lawall, Leonard Crestez, Rob Herring, Sudeep Holla). - Update the IO-wait boost handling in the schedutil governor to make it less aggressive (Joel Fernandes). - Rework system suspend diagnostics to make it print fewer messages to the kernel log by default, add a sysfs knob to allow more suspend-related messages to be printed and add Low Power S0 Idle constraints checks to the ACPI suspend-to-idle code (Rafael Wysocki, Srinivas Pandruvada). - Prefer suspend-to-idle over S3 on ACPI-based systems with the ACPI_FADT_LOW_POWER_S0 flag set and the Low Power Idle S0 _DSM interface present in the ACPI tables (Rafael Wysocki). - Update documentation related to system sleep and rename a number of items in the code to make it cleare that they are related to suspend-to-idle (Rafael Wysocki). - Export a variable allowing device drivers to check the target system sleep state from the core system suspend code (Florian Fainelli). - Clean up the cpuidle subsystem to handle the polling state on x86 in a more straightforward way and to use %pOF instead of full_name (Rafael Wysocki, Rob Herring). - Update the devfreq framework to fix and clean up a few minor issues (Chanwoo Choi, Rob Herring). - Extend diagnostics in the generic power domains (genpd) framework and clean it up slightly (Thara Gopinath, Rob Herring). - Fix and clean up a couple of issues in the operating performance points (OPP) framework (Viresh Kumar, Waldemar Rymarkiewicz). - Add support for RV1108 to the rockchip-io Adaptive Voltage Scaling (AVS) driver (David Wu). - Fix the usage of notifiers in CPU power management on some platforms (Alex Shi). - Update the pm-graph system suspend/hibernation and boot profiling utility (Todd Brandt). - Make it possible to run the cpupower utility without CPU0 (Prarit Bhargava)" * tag 'pm-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (87 commits) cpuidle: Make drivers initialize polling state cpuidle: Move polling state initialization code to separate file cpuidle: Eliminate the CPUIDLE_DRIVER_STATE_START symbol cpufreq: imx6q: Fix imx6sx low frequency support cpufreq: speedstep-lib: make several arrays static, makes code smaller PM: docs: Delete the obsolete states.txt document PM: docs: Describe high-level PM strategies and sleep states PM / devfreq: Fix memory leak when fail to register device PM / devfreq: Add dependency on PM_OPP PM / devfreq: Move private devfreq_update_stats() into devfreq PM / devfreq: Convert to using %pOF instead of full_name PM / AVS: rockchip-io: add io selectors and supplies for RV1108 cpufreq: ti: Fix 'of_node_put' being called twice in error handling path cpufreq: dt-platdev: Drop few entries from whitelist cpufreq: dt-platdev: Automatically create cpufreq device with OPP v2 ARM: ux500: don't select CPUFREQ_DT cpuidle: Convert to using %pOF instead of full_name cpufreq: Convert to using %pOF instead of full_name PM / Domains: Convert to using %pOF instead of full_name cpufreq: Cap the default transition delay value to 10 ms ...
2017-09-04mfd: twl: Move header file out of I2C realmWolfram Sang
include/linux/i2c is not for client devices. Move the header file to a more appropriate location. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-08-31power: supply: bq27xxx: enable writing capacity values for bq27421H. Nikolaus Schaller
Tested on Pyra prototype with bq27421. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-30power: supply: bq24190_charger: Get input_current_limit from our supplierHans de Goede
On some devices the USB Type-C port power (USB PD 2.0) negotiation is done by a separate port-controller IC, while the current limit is controlled through another (charger) IC. It has been decided to model this by modelling the external Type-C power brick (adapter/charger) as a power-supply class device which supplies the charger-IC, with its voltage-now and current-max representing the negotiated voltage and max current draw. This commit adds support for this to the bq24190_charger driver by adding an external_power_changed callback and calling power_supply_set_input_current_limit_from_supplier from this callback. This callback will only get called if the bq24190 has a parent-supply. Note this replaces the functionality to get the current-limit from an extcon device, which will be removed in a follow-up commit. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Tony Lindgren <tony@atomide.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-30power: supply: bq24190_charger: Export 5V boost converter as regulatorHans de Goede
Register the 5V boost converter as a regulator named "usb_otg_vbus". This commit also adds support for bq24190_platform_data, through which non device-tree platforms can pass the regulator_init_data (containing mappings for the consumer amongst other things). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29power: supply: bq24190_charger: Add power_supply_battery_info supportLiam Breck
Set pre-charge and charge-term current, obtained from power_supply_battery_info. Add sysfs attributes precharge_current & charge_term_current. Cc: Hans de Goede <hdegoede@redhat.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Liam Breck <kernel@networkimprov.net> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29power: supply: bq24190_charger: Add property system-minimum-microvoltLiam Breck
Set minimum system voltage limit obtained from device property. Cc: Hans de Goede <hdegoede@redhat.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Liam Breck <kernel@networkimprov.net> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29power: supply: bq24190_charger: Enable devicetree configLiam Breck
Add get_config(). Rename set_mode_host() to set_config(). Call get_config() and hw_init() after power_supply_register(). No functional changes. Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Liam Breck <kernel@networkimprov.net> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29power: supply: bq27xxx: Remove duplicate chip data arraysLiam Breck
BQ2751X & BQ27510G3 have identical regs & props. BQ2750X & BQ27510G3 have identical props. BQ27500 & BQ27510G1 & BQ27510G2 have identical regs & props. BQ27500 & BQ27520G2 have identical props. Remove the duplicate arrays. No functional changes to the driver. Signed-off-by: Liam Breck <kernel@networkimprov.net> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29power: supply: bq27xxx: Enable data memory update for certain chipsLiam Breck
Support data memory update on BQ27425. Parameters from TI datasheets are also provided for BQ27500, 545, 421, 441, 621; however these are commented out, as they are not tested. Add BQ27XXX_O_CFGUP & _O_RAM for use in bq27xxx_chip_data[n].opts and by data memory update functions. Signed-off-by: Liam Breck <kernel@networkimprov.net> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29power: supply: bq27xxx: Add chip IDs for previously shadowed chipsLiam Breck
For the existing features, these chips act like others already ID'd, so they had false but functional IDs. We will be adding features which require correct IDs, so the following IDs are added: BQ2752X, 531, 542, 546, 742, 425, 441, 621 Chip-specific features are now tracked by BQ27XXX_O_* flags in di->opts. No functional changes to the driver. Signed-off-by: Liam Breck <kernel@networkimprov.net> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29power: supply: bq27xxx: Create single chip data tableLiam Breck
To support new features which require different data for each chip, we unify the bq27xxx_regs and bq27xxx_battery_props tables into a single one. No functional changes to the driver. Signed-off-by: Liam Breck <kernel@networkimprov.net> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29power: supply: bq24190_charger: Add ti,bq24192i to devicetree tableLiam Breck
bq24192i was previously only in ID table, so add it to DT table. Cc: Tony Lindgren <tony@atomide.com> Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Liam Breck <kernel@networkimprov.net> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29power: supply: bq24190_charger: Add input_current_limit propertyHans de Goede
Export the input current limit of the charger as a POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT property on the charger power_supply class device. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29power: supply: Add power_supply_set_input_current_limit_from_supplier helperHans de Goede
On some devices the USB Type-C port power (USB PD 2.0) negotiation is done by a separate port-controller IC, while the current limit is controlled through another (charger) IC. It has been decided to model this by modelling the external Type-C power brick (adapter/charger) as a power-supply class device which supplies the charger-IC, with its voltage-now and current-max representing the negotiated voltage and max current draw. This commit adds a power_supply_set_input_current_limit_from_supplier helper function which charger power-supply drivers can call to get the max-current from their supplier and have this applied through their set_property call-back to their input-current-limit. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-29power: supply: max17042_battery: Fix compiler warningHans de Goede
Fix drivers/power/supply/max17042_battery.c:1059:6: warning: 'acpi_id' may be used uninitialized in this function. No idea why my gcc version did not catch this. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-28power: supply: core: Delete two error messages for a failed memory ↵Markus Elfring
allocation in power_supply_check_supplies() Omit extra messages for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-28power: supply: make device_attribute constBhumika Goyal
Make these const as they are only passed as an argument to the function device_create_file and device_remove_file and the corresponding arguments are of type const. Done using Coccinelle. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-28power: supply: max17042_battery: Fix ACPI interrupt issuesHans de Goede
On some x86/ACPI boards the DSDT defines an ACPI event handler for the max17047 IRQ, this causes several problems: 1) We need to share the IRQ to avoid an error getting it 2) Even of we are willing to share, we may fail to share because some DSDTs claim it exclusivly 3) If we are unable to share the IRQ, or the IRQ is only listed as an ACPI event source and not in the max1704 firmware node, then the charge threshold IRQ (which is used to give an IRQ every 1 percent charge change) becomes a problem, the ACPI event handler will not update this to the next 1 percent threshold, so the IRQ keeps firing and we get an IRQ storm pegging 1 CPU core. This happens despite the max17042 driver not setting the charge threshold because Windows uses it and leaves it set on reboot. So if we are unable to get the IRQ we need to reprogram the charge threshold to its disabled setting. This commit fixes al of the above, while at it it also makes the error msg when being unable to get the IRQ consistent with other messages. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-28power: supply: max17042_battery: Add support for ACPI enumerationHans de Goede
Some x86 devices enumerate a max17047 fuel-gauge through a MAX17047 ACPI firmware-node, add support for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-25PM / AVS: rockchip-io: add io selectors and supplies for RV1108David Wu
This adds the necessary data for handling io voltage domains on the RV1108. Signed-off-by: David Wu <david.wu@rock-chips.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-08-15power: wm831x_power: Support USB charger current limit managementBaolin Wang
Integrate with the newly added USB charger interface to limit the current we draw from the USB input based on the input device configuration identified by the USB stack, allowing us to charge more quickly from high current inputs without drawing more current than specified from others. Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-08-12power: supply: lp8788: Make several arrays static const * constColin Ian King
Don't populate various read only arrays on the stack but make them static const, making the object code smaller and saves 148 bytes overall: Before: text data bss dec hex filename 11940 4496 64 16500 4074 lp8788-charger.o After: text data bss dec hex filename 11472 4816 64 16352 3fe0 lp8788-charger.o Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-11power: supply: charger-manager: Slighly simplify codeChristophe JAILLET
Use 'sizeof(*var)' instead of the equivalent 'sizeof(data structure type)' because it is less verbose. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-11power: supply: charger-manager: Fix a commentChristophe JAILLET
Update a comment which is no more up to date since commit 2ed9e9b653095. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-11power: supply: charger-manager: Fix a NULL pointer dereference in ↵Christophe JAILLET
'charger_manager_probe()' 'devm_kzalloc()' can return NULL. Return -ENOMEM in this case in order to avoid a NULL pointer dereference later on. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-09power: supply: Fix power_supply_am_i_supplied to return -ENODEV when apropriateHans de Goede
Commit 2848e039c562 ("power: supply: Make power_supply_am_i_supplied return -ENODEV if there are no suppliers") was supposed to make power_supply_am_i_supplied() return -ENODEV when there are no supplies which supply the supply passed to it. But instead it will only return -ENODEV when there are no supplies at all as data->count++; is incremented on every call of the iterator, rather then only when __power_supply_is_supplied_by returns true. This commit fixes this. Fixes: 2848e039c562 ("power: supply: Make power_supply_am_i_supplied ...") Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-08-09power: supply: add const to bin_attribute structuresBhumika Goyal
Add const to bin_attribute structures as they are only passed to the functions sysfs_{remove/create}_bin_file or device_{remove/create}_bin_file. The corresponding parameters passed are of type const, so declare the structures to be const. Done using Coccinelle: @m disable optional_qualifier@ identifier s; position p; @@ static struct bin_attribute s@p={...}; @okay1@ position p; identifier m.s; @@ ( sysfs_create_bin_file(...,&s@p,...) | sysfs_remove_bin_file(...,&s@p,...) ) @bad@ position p!={m.p,okay1.p}; identifier m.s; @@ s@p @change depends on !bad disable optional_qualifier@ identifier m.s; @@ static +const struct bin_attribute s={...}; Same script was modified for device_{create/remove}_bin_file functions. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25power: supply: bq27xxx: move platform driver code into bq27xxx_battery_hdq.cAndrew F. Davis
When the BQ27xxx driver was originally written the w1 subsystem only allowed device drivers for w1 attached devices to live in the w1 subsystem. Kernel driver subsystems expect that the driver for a device live in the directory of the subsystem for which it implements functionality, not in the directory of the bus that it is attached. To work around this, the BQ27xxx driver was implemented as a platform device driver and the interface driver would instantiate this device from within the w1 directory, then pass a w1 read callback as platform data. As we can now have the w1 interface driver in the power/supply directory (like we do already with the i2c interface driver) we can remove this middle-layer platform driver. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25Merge branch 'psy-w1-for-v4.14-immutable' into for-nextSebastian Reichel
Merge immutable branch moving bq27000 driver from w1 subsystem into power-supply subsystem. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25power: supply: move HDQ interface for bq27xxx from w1 to power/supplyAndrew F. Davis
The HDQ interface driver should be in this folder just like the I2C interface driver. Move this driver out of drivers/w1/slave and into drivers/power/supply. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25power: supply: ltc2941-battery-gauge: Add LTC2944 supportDragos Bogdan
LTC2944 is compatible with LTC2943, but uses different voltage and current computing constants. Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com> Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Tested-by: Dragos Bogdan <dragos.bogdan@analog.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25power: supply: ltc2941-battery-gauge: Add LTC2942 supportLadislav Michl
LTC2942 is pin compatible with LTC2941 providing additional informations about battery voltage and temperature. It can be runtime detected using bit A7 in the Status register. Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Dragos Bogdan <dragos.bogdan@analog.com> Tested-by: Dragos Bogdan <dragos.bogdan@analog.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25power: supply: ltc2941-battery-gauge: Prepare for LTC2942 and LTC2944Ladislav Michl
In order to support LTC2942 which has temperature registers at different offsets than LTC2943 use following register naming scheme (prefixes): - LTC294X_ common registers - LTC2942_ chips specific registers - LTC2943_ specific registers LTC2944 is compatible with LTC2943 but uses different constants to compute voltage and current, so replace num_regs misused for device indentification with real device id to discriminate between those two. There are no functional changes. Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Acked-by: Dragos Bogdan <dragos.bogdan@analog.com> Tested-by: Dragos Bogdan <dragos.bogdan@analog.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25power: supply: sbs-battery: Add delay when changing capacity mode bitPhil Reid
At least with the Inspired Energy compatible batteries a delay is required after setting the capacity mode bit from amp to watts or the reverse. Setting the bit and then immediately pooling the status register results in an unknown error being returned in the register. Add the delay results in and ok status being return. This was also seen when reading the charge and energy registers where the wrong value was returned for the requested mode. Signed-off-by: Phil Reid <preid@electromag.com.au> Tested-by: Michael Heinemann <committed@heine.so> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25power: supply: sbs-battery: sort includesPhil Reid
Sort the header includes prior to adding to the list. Signed-off-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-25power: supply: sbs-battery: Remove FSF mailing address from commentsPhil Reid
checkpatch issued an error in having the FSF address in the comment. As address may change and Linux already includes a copy. Signed-off-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24Merge branch 'fixes' into for-nextSebastian Reichel
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24power: supply: Add support for MAX1721x standalone fuel gaugeAlex A. Mihaylov
The MAX17211 monitor a single cell pack. The MAX17215 monitor and balance a 2S or 3S pack or monitor a multiple-series cell pack. Both device use 1-Wire interfce. Signed-off-by: Alex A. Mihaylov <minimumlaw@rambler.ru> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24power: supply: constify attribute_group structures.Arvind Yadav
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 2673 400 0 3073 c01 power/supply/pcf50633-charger.o File size After adding 'const': text data bss dec hex filename 2737 336 0 3073 bed power/supply/pcf50633-charger.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24power: reset: Convert to using %pOF instead of full_nameRob Herring
Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Sebastian Reichel <sre@kernel.org> Cc: linux-pm@vger.kernel.org Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24power: supply: act8945a_charger: fix of_irq_get() error checkSergei Shtylyov
of_irq_get() may return any negative error number as well as 0 on failure, while the driver only checks for -EPROBE_DEFER, blithely continuing with the call to devm_request_irq() -- that function expects *unsigned int*, so would probably fail anyway when a large IRQ number resulting from a conversion of a negative error number is passed to it... This, however, is incorrect behavior -- error number is not IRQ number. Check for 'irq <= 0' instead and return -ENXIO from probe if of_irq_get() returned 0. Fixes: a09209acd6a8 ("power: supply: act8945a_charger: Add status change update support") Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24power: supply: cpcap-charger: add OMAP_USB2 dependencyArnd Bergmann
When CONFIG_OMAP_USB2 is set to 'm' and the charger driver is built-in, we get this link failure: drivers/power/supply/cpcap-charger.o: In function `cpcap_charger_probe': cpcap-charger.c:(.text+0x48c): undefined reference to `omap_usb2_set_comparator' drivers/power/supply/cpcap-charger.o: In function `cpcap_charger_remove': cpcap-charger.c:(.text+0x774): undefined reference to `omap_usb2_set_comparator' This adds a dependency to prevent that problem, while still allowing compile-testing with the OMAP_USB2 driver completely disabled. Fixes: 0c9888e3c192 ("power: supply: cpcap-charger: Add minimal CPCAP PMIC battery charger") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-24power: supply: sbs-battery: correct capacity mode selection bitsMichael Heinemann
The capacity mode bit is bit 15. Currently it is written as default initialized enum and never shifted. This leads to a behaviour where the BATTERY_MODE is not correctly recognized and set again. This commit initializes the enum accordingly. Signed-off-by: Michael Heinemann <committed@heine.so> Tested-by: Phil Reid <preid@electromag.com.au> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
generated by cgit (git 2.34.1) at 2024-06-23 07:13:09 +0000