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2016-03-18Merge tag 'mfd-for-linus-4.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Freescale Touch Screen ADC - X-Powers AXP PMIC with RSB - TI TPS65086 Power Management IC (PMIC) New Device Support: - Supply device PCI IDs for Intel Broxton Fix-ups: - Move to clkdev_create() API; intel_quark_i2c_gpio - Complete re-write of TI's TPS65912 Power Management IC (PMIC) - Remove unnecessary function argument; axp20x - Separate out bus related code; axp20x - Coding Style changes; axp20x - Allow more drivers to be compiled as modules - Work around false positive 'used uninitialised' warning; db8500-prcmu Bug Fixes: - Remove do_div(); fsl-imx25-gcq - Fix driver init when built-in; tps65010 - Fix clock-unregister leak; intel-lpss" * tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (53 commits) mfd: intel-lpss: Pass I2C configuration via properties on BXT mfd: imx6sx: Add PCIe register definitions for iomuxc gpr mfd: ipaq-micro: Use __maybe_unused to hide pm functions mfd: max77686: Add max77802 to I2C device ID table mfd: max77686: Export OF module alias information mfd: max77686: Allow driver to be built as a module mfd: stmpe: Add the proper PWM resources mfd: tps65090: Set regmap config reg counts properly mfd: syscon: Return ENOTSUPP instead of ENOSYS when disabled mfd: as3711: Set regmap config reg counts properly mfd: rc5t583: Set regmap config reg counts properly gpio: tps65086: Add GPO driver for the TPS65086 PMIC mfd: mt6397: Add platform device ID table mfd: da9063: Fix missing volatile registers in the core regmap_range volatile lists mfd: mt6397: Add MT6323 support to MT6397 driver mfd: mt6397: Add support for different Slave types mfd: mt6397: int_con and int_status may vary in location dt-bindings: mfd: Add bindings for the MediaTek MT6323 PMIC mfd: da9062: Fix missing volatile registers in the core regmap_range volatile lists mfd: Add documentation for ACT8945A DT bindings ...
2016-03-17Merge tag 'gpio-v4.6-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for kernel v4.6. There is quite a lot of interesting stuff going on. The patches to other subsystems and arch-wide are ACKed as far as possible, though I consider things like per-arch <asm/gpio.h> as essentially a part of the GPIO subsystem so it should not be needed. Core changes: - The gpio_chip is now a *real device*. Until now the gpio chips were just piggybacking the parent device or (gasp) floating in space outside of the device model. We now finally make GPIO chips devices. The gpio_chip will create a gpio_device which contains a struct device, and this gpio_device struct is kept private. Anything that needs to be kept private from the rest of the kernel will gradually be moved over to the gpio_device. - As a result of making the gpio_device a real device, we have added resource management, so devm_gpiochip_add_data() will cut down on overhead and reduce code lines. A huge slew of patches convert almost all drivers in the subsystem to use this. - Building on making the GPIO a real device, we add the first step of a new userspace ABI: the GPIO character device. We take small steps here, so we first add a pure *information* ABI and the tool "lsgpio" that will list all GPIO devices on the system and all lines on these devices. We can now discover GPIOs properly from userspace. We still have not come up with a way to actually *use* GPIOs from userspace. - To encourage people to use the character device for the future, we have it always-enabled when using GPIO. The old sysfs ABI is still opt-in (and can be used in parallel), but is marked as deprecated. We will keep it around for the foreseeable future, but it will not be extended to cover ever more use cases. Cleanup: - Bjorn Helgaas removed a whole slew of per-architecture <asm/gpio.h> includes. This dates back to when GPIO was an opt-in feature and no shared library even existed: just a header file with proper prototypes was provided and all semantics were up to the arch to implement. These patches make the GPIO chip even more a proper device and cleans out leftovers of the old in-kernel API here and there. Still some cruft is left but it's very little now. - There is still some clamping of return values for .get() going on, but we now return sane values in the vast majority of drivers and the errorpath is sanitized. Some patches for powerpc, blackfin and unicore still drop in. - We continue to switch the ARM, MIPS, blackfin, m68k local GPIO implementations to use gpiochip_add_data() and cut down on code lines. - MPC8xxx is converted to use the generic GPIO helpers. - ATH79 is converted to use the generic GPIO helpers. New drivers: - WinSystems WS16C48 - Acces 104-DIO-48E - F81866 (a F7188x variant) - Qoric (a MPC8xxx variant) - TS-4800 - SPI serializers (pisosr): simple 74xx shift registers connected to SPI to obtain a dirt-cheap output-only GPIO expander. - Texas Instruments TPIC2810 - Texas Instruments TPS65218 - Texas Instruments TPS65912 - X-Gene (ARM64) standby GPIO controller" * tag 'gpio-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (194 commits) Revert "Share upstreaming patches" gpio: mcp23s08: Fix clearing of interrupt. gpiolib: Fix comment referring to gpio_*() in gpiod_*() gpio: pca953x: Fix pca953x_gpio_set_multiple() on 64-bit gpio: xgene: Fix kconfig for standby GIPO contoller gpio: Add generic serializer DT binding gpio: uapi: use 0xB4 as ioctl() major gpio: tps65912: fix bad merge Revert "gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free" gpio: omap: drop dev field from gpio_bank structure gpio: mpc8xxx: Slightly update the code for better readability gpio: mpc8xxx: Remove *read_reg and *write_reg from struct mpc8xxx_gpio_chip gpio: mpc8xxx: Fixup setting gpio direction output gpio: mcp23s08: Add support for mcp23s18 dt-bindings: gpio: altera: Fix altr,interrupt-type property gpio: add driver for MEN 16Z127 GPIO controller gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free gpio: timberdale: Switch to devm_ioremap_resource() gpio: ts4800: Add IMX51 dependency gpiolib: rewrite gpiodev_add_to_list ...
2016-03-13Merge remote-tracking branches 'regulator/topic/s5m8767' and ↵Mark Brown
'regulator/topic/vexpress' into regulator-next
2016-03-13Merge remote-tracking branches 'regulator/topic/mt6397', ↵Mark Brown
'regulator/topic/of', 'regulator/topic/pv88060', 'regulator/topic/pwm' and 'regulator/topic/s2mps11' into regulator-next
2016-03-13Merge remote-tracking branches 'regulator/topic/ltc3589', ↵Mark Brown
'regulator/topic/max77620', 'regulator/topic/max77686', 'regulator/topic/max77802' and 'regulator/topic/maxim' into regulator-next
2016-03-13Merge remote-tracking branches 'regulator/topic/discharge', ↵Mark Brown
'regulator/topic/fan53555', 'regulator/topic/gpio', 'regulator/topic/hi655x' and 'regulator/topic/lp872x' into regulator-next
2016-03-13Merge remote-tracking branches 'regulator/topic/act8865', ↵Mark Brown
'regulator/topic/act8945a', 'regulator/topic/axp20x' and 'regulator/topic/cs4271' into regulator-next
2016-03-13Merge remote-tracking branch 'regulator/topic/core' into regulator-nextMark Brown
2016-03-13Merge remote-tracking branches 'regulator/fix/ad5398', ↵Mark Brown
'regulator/fix/da9210', 'regulator/fix/max77802' and 'regulator/fix/pv88090' into regulator-linus
2016-03-12regulator: pwm: Add support to have multiple instance of pwm regulatorLaxman Dewangan
Some of platforms like Nvidia's Tegra210 Jetson-TX1 platform has multiple PMW based regulators. Add support to have multiple instances of the driver by not changing any global data of pwm regulator and if required, making instance specific copy and then making changes. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-12regulator: pwm: Fix calculation of voltage-to-duty cycleLaxman Dewangan
With following equation for calculating voltage_to_duty_cycle_percentage 100 - (((req_uV * 100) - (min_uV * 100)) / diff); we get 0% for max_uV and 100% for min_uV. Correcting this to ((req_uV * 100) - (min_uV * 100)) / diff; to get proper duty cycle. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-12regulator: of: Use of_property_read_u32() for reading min/maxLaxman Dewangan
OF interface provides to read the u32 value via standard interface of_property_read_u32(). Use this API to read "regulator-min-microvolts" and "regulator-max-microvolt". This will make consistent with other property value reads. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-09Merge branches 'ib-mfd-clk-4.6', 'ib-mfd-input-iio-4.6', ↵Lee Jones
'ib-mfd-regulator-4.6' and 'ib-mfd-regulator-gpio-4.6' into ibs-for-mfd-merged
2016-03-08regulator: pv88060: fix incorrect clear of event registerJames Ban
This is a patch to fix incorrect clear of event register. Signed-off-by: James Ban <James.Ban.opensource@diasemi.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-07regulator: pv88090: fix incorrect clear of event registerJames Ban
This is a patch to fix incorrect clear of event register. Signed-off-by: James Ban <James.Ban.opensource@diasemi.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-02regulator: max77620: Add support to configure active-dischargeLaxman Dewangan
Add regulator ops callback for configuration of active-discharge and provide necessarily information via regulator descriptor. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-02regulator: core: Add support for active-discharge configurationLaxman Dewangan
Add support to enable/disable active discharge of regulator via machine constraints. This configuration is done when setting machine constraint during regulator register and if regulator driver implemented the callback ops. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-02Merge branch 'topic/discharge' of ↵Mark Brown
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-max77620
2016-03-02regulator: helper: Add helper to configure active-discharge using regmapLaxman Dewangan
Add helper function to set the state of active-discharge of regulator using regmap. The HW regulator driver can directly use this by providing the necessary information in the regulator descriptor. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-02regulator: core: Add support for active-discharge configurationLaxman Dewangan
Add support to enable/disable active discharge of regulator via machine constraints. This configuration is done when setting machine constraint during regulator register and if regulator driver implemented the callback ops. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-29regulator: act8865: Specify fixed voltage of 3.3V for ACT8600's REG9Maarten ter Huurne
The documentation lists both 1.8V and 3.3V for this regulator output, but 3.3V is mentioned more often and also matches what JZ4770 and JZ4780 expect as an input. Note that the voltage of REG9 is not programmable, so this commit only changes the voltage reported in sysfs and debugfs, not the actual output voltage of the hardware. Signed-off-by: Maarten ter Huurne <maarten@treewalker.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-29regulator: act8865: Rename platform_data field to init_dataMaarten ter Huurne
Make the field name match its type. Signed-off-by: Maarten ter Huurne <maarten@treewalker.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-29regulator: act8865: Remove "static" from local variableMaarten ter Huurne
There is no need to preserve its value between calls. I guess this was a copy-paste slip-up. Signed-off-by: Maarten ter Huurne <maarten@treewalker.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-26regulator: max77620: Remove duplicate module aliasAxel Lin
The same alias is already in .id_table. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-26regulator: max77620: Eliminate duplicate codeAxel Lin
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-26regulator: max77620: Remove unused fieldsAxel Lin
These fields are never used and not required at all, remove them. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-25regulator: core: fix crash in error path of regulator_registerKrzysztof Adamski
This problem was introduced by: commit daad134d6649 ("regulator: core: Request GPIO before creating sysfs entries") The error path was not updated correctly after moving GPIO registration code and in case regulator_ena_gpio_free failed, device_unregister() was called even though device_register() was not yet called. This problem breaks the boot at least on all Tegra 32-bit devices. It will also crash each device that specifices GPIO that is unavaiable at regulator_register call. Here's error log I've got when forced GPIO to be invalid: [ 1.116612] usb-otg-vbus-reg: Failed to request enable GPIO10: -22 [ 1.122794] Unable to handle kernel NULL pointer dereference at virtual address 00000044 [ 1.130894] pgd = c0004000 [ 1.133598] [00000044] *pgd=00000000 [ 1.137205] Internal error: Oops: 5 [#1] SMP ARM and here's backtrace from KDB: Exception stack(0xef11fbd0 to 0xef11fc18) fbc0: 00000000 c0738a14 00000000 00000000 fbe0: c0b2a0b0 00000000 00000000 c0738a14 c0b5fdf8 00000001 ef7f6074 ef11fc4c fc00: ef11fc50 ef11fc20 c02a8344 c02a7f1c 60000013 ffffffff [<c010cee0>] (__dabt_svc) from [<c02a7f1c>] (kernfs_find_ns+0x18/0xf8) [<c02a7f1c>] (kernfs_find_ns) from [<c02a8344>] (kernfs_find_and_get_ns+0x40/0x58) [<c02a8344>] (kernfs_find_and_get_ns) from [<c02ac4a4>] (sysfs_unmerge_group+0x28/0x68) [<c02ac4a4>] (sysfs_unmerge_group) from [<c044389c>] (dpm_sysfs_remove+0x30/0x5c) [<c044389c>] (dpm_sysfs_remove) from [<c0436ba8>] (device_del+0x48/0x1f4) [<c0436ba8>] (device_del) from [<c0436d84>] (device_unregister+0x30/0x6c) [<c0436d84>] (device_unregister) from [<c0403910>] (regulator_register+0x6d0/0xdac) [<c0403910>] (regulator_register) from [<c04052d4>] (devm_regulator_register+0x50/0x84) [<c04052d4>] (devm_regulator_register) from [<c0406298>] (reg_fixed_voltage_probe+0x25c/0x3c0) [<c0406298>] (reg_fixed_voltage_probe) from [<c043d21c>] (platform_drv_probe+0x60/0xb0) [<c043d21c>] (platform_drv_probe) from [<c043b078>] (driver_probe_device+0x24c/0x440) [<c043b078>] (driver_probe_device) from [<c043b5e8>] (__device_attach_driver+0xc0/0x120) [<c043b5e8>] (__device_attach_driver) from [<c043901c>] (bus_for_each_drv+0x6c/0x98) [<c043901c>] (bus_for_each_drv) from [<c043ad20>] (__device_attach+0xac/0x138) [<c043ad20>] (__device_attach) from [<c043b664>] (device_initial_probe+0x1c/0x20) [<c043b664>] (device_initial_probe) from [<c043a074>] (bus_probe_device+0x94/0x9c) [<c043a074>] (bus_probe_device) from [<c043a610>] (deferred_probe_work_func+0x80/0xcc) [<c043a610>] (deferred_probe_work_func) from [<c01381d0>] (process_one_work+0x158/0x454) [<c01381d0>] (process_one_work) from [<c013854c>] (worker_thread+0x38/0x510) [<c013854c>] (worker_thread) from [<c013e154>] (kthread+0xe8/0x104) [<c013e154>] (kthread) from [<c0108638>] (ret_from_fork+0x14/0x3c) Signed-off-by: Krzysztof Adamski <krzysztof.adamski@tieto.com> Reported-by: Jon Hunter <jonathanh@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-25Merge branch 'fix/core' of ↵Mark Brown
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-core
2016-02-22regulator: core: Request GPIO before creating sysfs entriesKrzysztof Adamski
regulator_attr_is_visible (which is a .is_visible callback of regulator_dev_group attribute_grpup) checks rdev->ena_pin to decide if "status" file should be present in sysfs. This field is set at the end of regulator_ena_gpio_request so it has to be called before device_register() otherwise this test will always fail, causing "status" file to not be visible. Since regulator_attr_is_visible also tests for is_enabled() op, this problem is only visible for regulators that does not define this callback, like regulator-fixed.c. Signed-off-by: Krzysztof Adamski <krzysztof.adamski@tieto.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-21regulator: gpio: don't print error on EPROBE_DEFERRabin Vincent
Don't print out an error with the driver sees EPROBE_DEFER when attempting to get the gpio. These errors are usually transient; the probe will be retried later. Signed-off-by: Rabin Vincent <rabin.vincent@axis.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-20regulator: s2mps11: Use local variable for number of regulatorsKrzysztof Kozlowski
Remove the s2mps11_info.rdev_num because it is not used outside of probe. Suggested-by: Andi Shyti <andi.shyti@samsung.com> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Andi Shyti <andi.shyti@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-20regulator: ad5398: Fix return value of ad5398_write_regAxel Lin
i2c_master_send() returns the number of bytes written on success. So current code returns 2 if ad5398_write_reg() success. This return value is propagated to .set_current_limit, .enable and .disable callbacks of regulator_ops. This can be a problem, for example, if the users test if the return value of regulator_set_current_limit() is 0. Fix it by making ad5398_write_reg() return 0 on success. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-20regulator: max77620: add regulator driver for max77620/max20024Laxman Dewangan
MAXIM Semiconductor's PMIC, MAX77620 and MAX20024 have the multiple DCDC and LDOs. This supplies the power to different components of the system. Also these rails has configuration for ramp time, flexible power sequence, slew rate etc. Add regulator driver to access these rails via regulator APIs. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mallikarjun Kasoju <mkasoju@nvidia.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-18regulator: s2mps11: Simplify expression used in BUILD_BUG_ONKrzysztof Kozlowski
Following BUILD_BUG_ON using a variable fails for some of the compilers and optimization levels (reported for gcc 4.9): var = ARRAY_SIZE(s2mps15_regulators); BUILD_BUG_ON(S2MPS_REGULATOR_MAX < var); Fix this by using ARRAY_SIZE directly. Additionally add missing BUILD_BUG_ON check for S2MPS15 device (the check ensures that internal arrays are big enough to hold data for all of regulators on all devices). Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Tested-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-16regulator: s5m8767: fix get_register() error handlingArnd Bergmann
The s5m8767_pmic_probe() function calls s5m8767_get_register() to read data without checking the return code, which produces a compile-time warning when that data is accessed: drivers/regulator/s5m8767.c: In function 's5m8767_pmic_probe': drivers/regulator/s5m8767.c:924:7: error: 'enable_reg' may be used uninitialized in this function [-Werror=maybe-uninitialized] drivers/regulator/s5m8767.c:944:30: error: 'enable_val' may be used uninitialized in this function [-Werror=maybe-uninitialized] This changes the s5m8767_get_register() function to return a -EINVAL not just for an invalid register number but also for an invalid regulator number, as both would result in returning uninitialized data. The s5m8767_pmic_probe() function is then changed accordingly to fail on a read error, as all the other callers of s5m8767_get_register() already do. In practice this probably cannot happen, as we don't call s5m8767_get_register() with invalid arguments, but the gcc warning seems valid in principle, in terms writing safe error checking. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 9c4c60554acf ("regulator: s5m8767: Convert to use regulator_[enable|disable|is_enabled]_regmap") Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-15regulator: vexpress: rename vexpress regulator implementationSudeep Holla
The vexpress regulator implementation is currently just called vexpress. This is a problem because it clashes with another module with the same name in hardware monitors. This patch renames the vexpress regulator implementation to vexpress-regulator so that there will be no clash in the module namespace. Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Mark Brown <broonie@kernel.org> Reported-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-15regulator: axp20x: Use of_match name as default regulator nameChen-Yu Tsai
Originally the helper macros used uppercase regulator names, which are primarily used to expand to the regulator ID enum, as the default names. This is aestheticly unpleasent. Since the of_match bits are the same, just lowercase, use that as the default names instead. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-15regulator: hi655x: enable regulator for hi655x PMICChen Feng
Add the regulator driver for hi655x PMIC. Signed-off-by: Chen Feng <puck.chen@hisilicon.com> Signed-off-by: Fei Wang <w.f@huawei.com> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com> Reviewed-by: Haojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-12regulator: ltc3589: Make IRQ optionalBernhard Walle
It's perfectly valid to use the LTC3589 without an interrupt pin connected to it. Currently, the driver probing fails when client->irq is 0 (which means "no interrupt"). Don't register the interrupt handler in that case but successfully finish the device probing instead. Signed-off-by: Bernhard Walle <bernhard@bwalle.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-12regulator: Rename files for max77686 and max77802 driversJavier Martinez Canillas
The max77686 and max77802 regulator drivers are for sub-devices of a MFD driver for some PMIC blocks. But the same object file name (max77686.o) was used for both the common MFD driver and the max77686 regulator one. This confuses kbuild if both drivers are built as module causing the MFD driver to not be copied when installing the modules. Also, max77{686,802} are a quite generic name for MFD subdevices drivers so it is better to rename them to max77{686,802}-regulator like it's the case for most regulator drivers. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-12regulator: axp20x: Support new AXP223 PMICChen-Yu Tsai
The AXP223 is a new PMIC commonly paired with Allwinner A23/A33 SoCs. It is functionally identical to AXP221; only the regulator default voltage/status and the external host interface are different. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-02-11regulator: tps65912: Add regulator driver for the TPS65912 PMICAndrew F. Davis
This patch adds support for TPS65912 PMIC regulators. The regulators set consists of 4 DCDCs and 10 LDOs. The output voltages are configurable and are meant to supply power to the main processor and other components. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-02-11mfd: tps65912: Remove old driver in preparation for new driverAndrew F. Davis
The old tps65912 driver is being replaced, delete old driver. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-02-05regulator: lp872x: Add enable GPIO pin supportPaul Kocialkowski
LP872x regulators are made active via the EN pin, which might be hooked to a GPIO. This adds support for driving the GPIO high when the driver is in use. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-05regulator: lp872x: Remove warning about invalid DVS GPIOPaul Kocialkowski
Some devices don't hook the DVS pin to a GPIO but to ground or VCC. In those cases, it is not a problem to have no DVS GPIO provided, as the current code will already switch to software-only DVS selection: When the DVS GPIO is invalid, lp872x_init_dvs jumps to the set_default_dvs_mode label, which instructs the chip not to use the DVS pin at all and do it all in software instead (by clearing the LP8720_EXT_DVS_M bit in the LP872X_GENERAL_CFG register). That is reflected later in the code, when setting the bucks (the DVS pin only applies to the bucks) by checking for the LP8720_EXT_DVS_M bit on the LP872X_GENERAL_CFG register (in lp872x_select_buck_vout_addr) to decide whether to use software or hardware DVS selection. Thus, there is no need to print a warning when the DVS GPIO is invalid. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-05regulator: act8945a: add regulator driver for ACT8945AWenyou Yang
This patch adds new regulator driver to support ACT8945A MFD chip's regulators. The ACT8945A has three step-down DC/DC converters and four low-dropout regulators. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-03regulator: axp20x: Use linear voltage ranges for AXP20X LDO4Chen-Yu Tsai
AXP20X datasheet lists the possible voltage settings for LDO4, so it was implemented using a voltage table. Upon closer examination, the valid voltages can be mapped into 3 linear ranges. Move AXP20X LDO4 to use linear ranges. The supporting code can be reused with later AXP8xx PMICs, which have a number of regulators that have 2 linear ranges. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-03regulator: axp20x: Remove voltage readout support for switch regulatorsChen-Yu Tsai
Switch-type regulators, such as DC1SW on AXP22X, are a secondary output from DCDC1. They are just an on/off switch, and the driver should not try to read its voltage directly from the DCDC1 control registers. Instead, the core will pass down the voltage from the regulator supply chain. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-27regulator: mt6397: Add OF match tableJavier Martinez Canillas
The Documentation/devicetree/bindings/regulator/mt6397-regulator.txt doc mentions that a compatible "mediatek,mt6397-regulator" is required for the MT6397 device node but the driver doesn't provide a OF match table so the platform bus .match fallbacks to match using the driver name instead. This also means that module auto-loading is broken for this driver since the MFD driver that register the device, has a .of_compatible set so the platform .uevent callback reports a OF modalias that's not in the module. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-27regulator: mt6397: Add platform device ID tableJavier Martinez Canillas
The platform bus_type .match callback attempts to match the platform device name with an entry on the .id_table if provided and fallbacks to match with the driver's name if a table is not provided. Using a platform device ID to match is more explicit, allows the driver to support more than one device and also the MODULE_DEVICE_TABLE macro can be used to export the module aliases information instead of the MODULE_ALIAS. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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