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* Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds2014-12-141-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
| * regulator: drop owner assignment from platform_driversWolfram Sang2014-10-201-1/+0
| | | | | | | | | | | | | | A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* | regulator: max77686: Remove support for board filesKrzysztof Kozlowski2014-11-261-72/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | The driver is used only on Exynos based boards with DTS support. Simplify the driver and remove dead (unused) entries in platform_data structure. Convert the driver to DTS-only version. Parse all regulators at once, not one-by-one. Remove dependency on data provided by max77686 MFD driver. Use new DT style parsing method for regulators init data. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
* | Merge tag 'v3.18-rc4' into regulator-max77686Mark Brown2014-11-261-1/+1
|\ \ | | | | | | | | | Linux 3.18-rc4
| * | regulator: max77686: zero-initialize regulator match tableJavier Martinez Canillas2014-11-031-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | The struct of_regulator_match is declared as a non-static local variable so the structure members are not auto-initialized. Initialize the struct at declaration time to avoid the structure members values to be indeterminate and have sane defaults instead. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Mark Brown <broonie@kernel.org>
* | regulator: max77686: Initialize opmode explicitly to normal modeKrzysztof Kozlowski2014-11-041-2/+1
| | | | | | | | | | | | | | | | | | | | Minor nit: Initialize the opmode for each regulator to normal mode in a readable explicit way. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Suggested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Mark Brown <broonie@kernel.org>
* | regulator: max77686: Consistently index opmode array by rdev idKrzysztof Kozlowski2014-11-041-2/+4
| | | | | | | | | | | | | | | | | | | | | | Mixed indexes were used for array of opmodes in max77686_data structure: id of regulator and index of regulator_desc array. These indexes are exactly the same but the mixture may confuse. Use consistently the id of regulator. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
* | regulator: max77686: Add suspend disable for some LDOsKrzysztof Kozlowski2014-10-311-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some LDOs of Maxim 77686 PMIC support disabling during system suspend (LDO{2,6,7,8,10,11,12,14,15,16}). This was already implemented as part of set_suspend_mode function. In that case the mode was one of: - disable, - normal mode, - low power mode. However there are no bindings for setting the mode during suspend. Add suspend disable for LDO regulators supporting this. Re-use existing max77686_buck_set_suspend_disable() function. This helps reducing energy consumption during system sleep. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Mark Brown <broonie@kernel.org>
* | regulator: max77686: Store opmode non-shiftedKrzysztof Kozlowski2014-10-281-15/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | Introduce simple helper for calculating the shift for OPMODE field in registers. This allows storing the current value of opmode in non-shifted form and simplifies a little set_suspend_disable and enable functions. Additionally this will allow adding support LDOs to the existing set_suspend_disable function. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Suggested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Mark Brown <broonie@kernel.org>
* | regulator: max77686: Replace hard-coded opmode values with definesKrzysztof Kozlowski2014-10-281-7/+24
| | | | | | | | | | | | | | | | | | | | | | Add defines for regulator operating modes which should be more readable, especially if one does not have Maxim 77686 datasheet. The patch does not introduce any functional change. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Suggested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Mark Brown <broonie@kernel.org>
* | regulator: max77686: Make regulator_desc array constKrzysztof Kozlowski2014-10-281-1/+1
|/ | | | | | | | The regulator_register() expects array of 'regulator_desc' to be const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Mark Brown <broonie@kernel.org>
* regulator: max77686: Remove regulator_dev array from state containerKrzysztof Kozlowski2014-03-101-4/+5
| | | | | | | | | Don't store array of regulator_dev returned by devm_regulator_register() in state container. It isn't used anywhere outside of max77686_pmic_probe() function. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
* regulator: max77686: Remove redundant error messageSachin Kamat2014-02-201-2/+0
| | | | | | | kzalloc prints its own OOM message upon failure. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* regulator: max77686: Add missing of_node_putSachin Kamat2014-02-181-0/+2
| | | | | | | Add of_node_put to decrement the ref count. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* regulator: max77686: Use of_get_child_by_nameSachin Kamat2014-02-141-1/+1
| | | | | | | | of_find_node_by_name walks the allnodes list, and can thus walk outside of the parent node. Use of_get_child_by_name instead. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* regulator: Remove redundant NULL assignmentSachin Kamat2013-09-171-1/+0
| | | | | | | | | NULL assignment corrupts the error pointer and is not necessary. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* regulator: max77686: Use devm_regulator_registerSachin Kamat2013-09-171-19/+3
| | | | | | | devm_* simplifies the code. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* regulator: Remove unnecessary include of linux/delay.h from regulator driversAxel Lin2013-05-121-1/+0
| | | | | | | | | | | | | | | All the drivers that need delay for the regulator voltage output voltage to stabilize after being enabled or after being set to a new value has been converted to implement enable_time and set_voltage_time_sel callbacks. Then regulator core will take care of the necessary delay. This patch removes the unneeded include of linux/delay.h in regulator drivers. Signed-off-by: Axel Lin <axel.lin@ingics.com> Cc: Daniel Jeong <daniel.jeong@ti.com> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Chiwoong Byun <woong.byun@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: Don't update max77686->opmode if update register failsAxel Lin2013-04-281-11/+21
| | | | | | | Ensure max77686->opmode always has correct status. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@sirena.org.uk>
* regulator: max77686: Reuse rdev_get_id() function.Thiago Farina2013-02-141-6/+8
| | | | | Signed-off-by: Thiago Farina <tfarina@chromium.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: Fix using wrong dev argument at various placesAxel Lin2013-01-271-7/+8
| | | | | | | | | Use &pdev->dev rather than iodev->dev for dev_err(). Use &pdev->dev rather than iodev->dev for devm_kzalloc() and of_regulator_match(), this fixes memory leak. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* Merge remote-tracking branch 'regulator/topic/max77686' into regulator-nextMark Brown2012-12-101-9/+155
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| * regulator: max77686: Make max77686_enable() static.Yadwinder Singh Brar2012-10-221-1/+1
| | | | | | | | | | | | | | | | This patch fixes a sparse warning. Since max77686_enable() is a callback,so it should be static. Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * regulator: max77686: Add set_suspend_disable/set_suspend_mode callbacks.Yadwinder Singh Brar2012-10-171-7/+141
| | | | | | | | | | | | | | | | | | | | This patch implements set_suspend_disable callback for BUCKs which support only switch ON/OFF modes during system suspend state, and set_suspend_mode callbacks for LDOs which also suport Low power mode and switch ON/OFF modes. Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * regulator: max77686: Use already set opmode while re-enabling regulators.Yadwinder Singh Brar2012-10-171-2/+14
| | | | | | | | | | | | | | | | This patch adds basic support to take care of opmode(if any) which can be set by set_suspend_[disable/mode] callbacks. Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | regulator: remove use of __devexitBill Pemberton2012-11-201-1/+1
| | | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | regulator: remove use of __devinitBill Pemberton2012-11-201-1/+1
| | | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | regulator: remove use of __devexit_pBill Pemberton2012-11-201-1/+1
|/ | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: Use array to save pointer to rdevAxel Lin2012-08-281-19/+9
| | | | | | | | MAX77686_REGULATORS is known in compile time. Use array to save pointer to rdev makes the code simpler. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: initialize of_node param for regulator registerAxel Lin2012-08-281-0/+2
| | | | | | | | Initialize config.of_node for regulator before registering. This is needed for DT based regulator support. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: Initialise rmatch.of_node to NULL.Yadwinder Singh Brar2012-07-061-0/+1
| | | | | | | | Now of_regulator_match() returns without finding the match if match->of_node is not NULL. Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: Add device tree support.Yadwinder Singh Brar2012-07-051-1/+57
| | | | | | | | This patch device tree support for regulator driver. It uses the parent (mfd's) DT node to parse the regulator data for max77686. Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: Implement .set_ramp_delay() callbackYadwinder Singh Brar2012-06-201-8/+29
| | | | | | | | | | | | This patch implements the .set_ramp_delay callback to set the ramp_delay on hardware for BUCK2/3/4 if ramp_delay is set in regulator constraints. This patch also do some cleaning work for unrequired members of struct max77686_data. Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: Initialize regulator_configAxel Lin2012-06-201-1/+1
| | | | | Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: Convert driver to use regulator_set_voltage_time_sel.Yadwinder Singh Brar2012-06-191-33/+9
| | | | | | | | | | This patch converts the driver to use regulator_set_voltage_time_sel() as .set_voltage_time_sel() callback. It also sets ramp_delay as 100000 uV/us for LDOs & normal BUCKs and 27500 uV/us(default/reset value) for BUCKs[2/3/4] in regulator_desc[]. Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: Fix the delay time for set_voltage_time_selAxel Lin2012-06-111-2/+2
| | | | | | | | | | rdev->desc->uV_step * abs(new_selector - old_selector) returns uV. The unit of ramp_rate is mV/us. Thus 1000 should be multiplied. Signed-off-by: Axel Lin <axel.lin@gmail.com> Reviewed-by: Yadwinder Singh Brar <yadi.brar@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: Check pdata->num_regulators earlierAxel Lin2012-06-111-24/+19
| | | | | | | | | | If this driver only works when pdata->num_regulators == MAX77686_REGULATORS, let's check it earlier. Also remove unused num_regulators from struct max77686_data. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: Fix checkpatch warningsAxel Lin2012-06-041-6/+7
| | | | | | | | | | | | | | | | Fix below checkpatch warnings: $ scripts/checkpatch.pl -f drivers/regulator/max77686.c ERROR: return is not a function, parentheses are not required + return (DIV_ROUND_UP(rdev->desc->uV_step WARNING: line over 80 characters + .ops = &max77686_buck_dvs_ops, \ total: 1 errors, 1 warnings, 339 lines checked Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: max77686: Use regulator_map_voltage_linear for simple linear mappingsAxel Lin2012-06-031-0/+2
| | | | | | | | | Both max77686_ops and max77686_buck_dvs_ops use simple linear voltage maps. Thus use regulator_map_voltage_linear is more efficient than using the defult regulator_map_voltage_iterate. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* regulator: MAX77686: Add Maxim 77686 regulator driverJonghwa Lee2012-06-031-0/+337
Add driver for support max77686 regulator. MAX77686 provides LDOs[1~26] and BUCKs[1~9]. It support to set or get the volatege of regulator on max77686 chip with using regmap. Signed-off-by: Chiwoong Byun <woong.byun@samsung.com> Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Yadwinder Singh Brar <yadi.brar@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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