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path: root/drivers/regulator
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2013-09-04Merge tag 'PTR_RET-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull PTR_RET() removal patches from Rusty Russell: "PTR_RET() is a weird name, and led to some confusing usage. We ended up with PTR_ERR_OR_ZERO(), and replacing or fixing all the usages. This has been sitting in linux-next for a whole cycle" [ There are still some PTR_RET users scattered about, with some of them possibly being new, but most of them existing in Rusty's tree too. We have that #define PTR_RET(p) PTR_ERR_OR_ZERO(p) thing in <linux/err.h>, so they continue to work for now - Linus ] * tag 'PTR_RET-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: GFS2: Replace PTR_RET with PTR_ERR_OR_ZERO Btrfs: volume: Replace PTR_RET with PTR_ERR_OR_ZERO drm/cma: Replace PTR_RET with PTR_ERR_OR_ZERO sh_veu: Replace PTR_RET with PTR_ERR_OR_ZERO dma-buf: Replace PTR_RET with PTR_ERR_OR_ZERO drivers/rtc: Replace PTR_RET with PTR_ERR_OR_ZERO mm/oom_kill: remove weird use of ERR_PTR()/PTR_ERR(). staging/zcache: don't use PTR_RET(). remoteproc: don't use PTR_RET(). pinctrl: don't use PTR_RET(). acpi: Replace weird use of PTR_RET. s390: Replace weird use of PTR_RET. PTR_RET is now PTR_ERR_OR_ZERO(): Replace most. PTR_RET is now PTR_ERR_OR_ZERO
2013-09-01Merge remote-tracking branch 'regulator/topic/tps65912' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/ti-abb' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/sec' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/ramp' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/pfuze100' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/palmas' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/optional' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/max8660' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/lp8755' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/lp872x' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/linear-range' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/kconfig' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/helpers' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/da9063' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/core' into regulator-nextMark Brown
2013-09-01Merge remote-tracking branch 'regulator/topic/as3711' into regulator-nextMark Brown
2013-09-01regulator: da9063: Statize da9063_ldo_lim_eventAxel Lin
da9063_ldo_lim_event() is only referenced in this driver, make it static. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-30regulator: lp872x: Make REGULATOR_LP872X depend on I2C rather than I2C=yAxel Lin
lp872x regulator driver can be built a module after commit 631a1fc "regulator: build: Allow most regulators to be built as modules". Make REGULATOR_LP872X depend on I2C to allow building lp872x module when I2C=m. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-30regulator: tps65217: Convert to use linear rangesAxel Lin
Below is the equation in original code: tps65217_uv1_ranges: 0 ... 24: uV = vsel * 25000 + 900000; 25 ... 52: uV = (vsel - 24) * 50000 + 1500000; = (vsel - 25) * 50000 + 1550000; 53 ... 55: uV = (vsel - 52) * 100000 + 2900000; = (vsel - 53) * 100000 + 3000000; 56 ... 62: uV = 3300000; tps65217_uv2_ranges: 0 ... 8: uV = vsel * 50000 + 1500000; 9 ... 13: uV = (vsel - 8) * 100000 + 1900000; = (vsel - 9) * 100000 + 2000000; 14 ... 31: uV = (vsel - 13) * 50000 + 2400000; = (vsel - 14) * 50000 + 2450000; The voltage tables are composed of linear ranges. This patch converts this driver to use multiple linear ranges APIs. In original code, voltage range for DCDC1 is 900000 ~ 1800000 and voltage range for DCDC3 is 900000 ~ 1500000. This patch separates the range 25~52 in tps65217_uv1_ranges table to two linear ranges: 25~30 and 31~52. This change makes it possible to reuse the same linear_ranges table for DCDCx. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-30regulator: da9063: Use IS_ERR to check return value of regulator_register()Axel Lin
regulator_register() does not return NULL, it returns ERR_PTR on error. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-30regulator: da9063: Optimize da9063_set_current_limit implementationAxel Lin
All the current limit tables have the values in ascend order. So we can slightly optimize the for loop iteration because the first match is the minimal value. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-29regulator: build: Allow most regulators to be built as modulesMark Brown
Mostly for testing without bloating the kernel image rather than actual utility. Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-29regulator: Add devm_regulator_get_exclusive()Matthias Kaehlcke
Add a resource managed regulator_get_exclusive() Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-29regulator: da9063: Add Dialog DA9063 voltage regulators support.Krystian Garbaciak
The driver adds support for the following DA9063 PMIC regulators: - 11x LDOs (named LDO1 - LDO11), - 6x buck converters (BCORE1, BCORE2, BPRO, BMEM, BIO, BPERI), Regulators provide following operations: - REGULATOR_CHANGE_STATUS and REGULATOR_CHANGE_VOLTAGE for all regulators, - REGULATOR_CHANGE_MODE for LDOs and buck converters, where: - LDOs allow REGULATOR_MODE_NORMAL and REGULATOR_MODE_STANDBY, - buck converters allow REGULATOR_MODE_FAST, REGULATOR_MODE_NORMAL and REGULATOR_MODE_STANDBY, - REGULATOR_CHANGE_CURRENT for buck converters (current limits). The driver generates REGULATOR_EVENT_OVER_CURRENT for LDO3, LDO4, LDO7, LDO8 and LDO11. Internally, PMIC provides two voltage configurations for normal and suspend system state for each regulator. The driver switches between those on suspend/wake-up to provide quick and fluent output voltage change. This driver requires MFD core driver for operation. Signed-off-by: Krystian Garbaciak <krystian.garbaciak@diasemi.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-22regulator: ti-abb: simplify platform_get_resource_byname/devm_ioremap_resourceJulia Lawall
Remove unneeded error handling on the result of a call to platform_get_resource_byname when the value is passed to devm_ioremap_resource. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression pdev,res,e,e1; expression ret != 0; identifier l; @@ res = platform_get_resource_byname(...); - if (res == NULL) { ... \(goto l;\|return ret;\) } e = devm_ioremap_resource(e1, res); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-18regulator: core: Use bool for exclusivitity flagMark Brown
Just for neatness. Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-14regulator: 88pm800: forever loop in pm800_regulator_probe()Dan Carpenter
This is supposed to be testing "i < ARRAY_SIZE()" instead of just "ARRAY_SIZE()". Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-13regulator: da9210: Remove redundant MODULE_ALIASAxel Lin
The modalias is set by the MODULE_DEVICE_TABLE, thus remove redundant MODULE_ALIAS. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-13regulator: 88pm800: Fix checking whether num_regulator is validAxel Lin
The code to check whether num_regulator is valid is wrong because it should iterate all array entries rather than break from the for loop if pdata->regulators[i] is NULL. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-13regulator: s2mps11: Fix setting ramp_delayAxel Lin
Current code has wrong mask and val arguments for updating ramp_delay. Fix it. Also ensure the return value of get_ramp_delay() won't greater than 3 because the mask field for ramp_val only takes 2 bits. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-13regulator: s2mps11: Fix wrong arguments for regmap_update_bits() callAxel Lin
Current code calls regmap_update_bits() with mask and val arguments swapped. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-12regulator: palmas: model SMPS10 as two regulatorsKishon Vijay Abraham I
SMPS10 has two outputs OUT1 and OUT2 and have one input IN1. SMPS10-OUT2 is connected to SMPS10-IN1 and can be configured either in BOOST mode or BYPASS mode. regulator_enable of SMPS10-OUT2 configures it in BOOST mode. For BYPASS mode regulator_allow_bypass() API can be used. SMPS10-OUT1 is connected to SMPS10-OUT2 and can be enabled using regulator_enable(). [ axel.lin@ingics.com : Simplify regulator_desc setting for SMPS10_[OUT1|OUT2] Signed-off-by: J Keerthy <j-keerthy@ti.com> Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-09regulator: core: Move list_voltage_{linear,linear_range,table} to helpers.cAxel Lin
Move regulator_list_voltage_{linear,linear_range,table} helper functions to helpers.c. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-08regulator: max8660: fix build warningsDaniel Mack
Fix a build warning for !CONFIG_OF and a cast from void* to unsigned int which is invalid on 64bit machines. Signed-off-by: Daniel Mack <zonque@gmail.com> Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-07regulator: core: Move helpers for drivers out into a separate fileMark Brown
Reduce the size of core.c a bit. Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-07Merge remote-tracking branch 'regulator/topic/linear-range' into ↵Mark Brown
regulator-helpers
2013-08-06regulator: da9210: New driverSteve Twiss
I2C driver for the Dialog DA9210 Multi-phase 12A DC-DC Buck. Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com> Signed-off-by: David Dajun Chen <david.chen@diasemi.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-02regulators: max8660: add DT bindingsDaniel Mack
This patch adds devicetree bindings for max8660, along with some documentation. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-02regulator: pfuze100: Fix off-by-one for max_register settingAxel Lin
max_register should be register count - 1. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Robin Gong <b38343@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-02regulators: max8660: add a shorthand to &client->devDaniel Mack
No functional change, just makes the code shorter. [Resolved conflict with platdata patch -- broonie] Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-02regulators: max8660: use i2c_id->driver_data rather than ->nameDaniel Mack
Introduce an enum and denote the device type via struct i2c_id's driver_data field rather than comparing strings. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-31regulator: pfuze100: Simplify pfuze100_set_ramp_delay implementationAxel Lin
Simplify the equation to calculate ramp_delay. Below equations are equivalent: ramp_delay = 25000 / (2 * ramp_delay); ramp_delay = 50000 / (4 * ramp_delay); ramp_delay = 25000 / (2 * ramp_delay); ramp_delay = 12500 / ramp_delay; So we don't need to read BIT6 of rdev->desc->vsel_reg for applying different equations. Also use rdev->desc->vsel_reg instead of run-time calculate register address. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Robin Gong <b38343@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-31regulator: core: Provide hints to the core about optional suppliesMark Brown
While the majority of supplies on devices are mandatory and can't be physically omitted for electrical reasons some devices do have optional supplies and need to know if they are missing, MMC being the most common of these. Currently the core accurately reports all errors when regulators are requested since it does not know if the supply is one that must be provided even if by a regulator software does not know about or if it is one that may genuinely be disconnected. In order to allow this behaviour to be changed and stub regulators to be provided in the former case add a new regulator request function regulator_get_optional() which provides a hint to the core that the regulator may genuinely not be connected. Currently the implementation is identical to the current behaviour, future patches will add support in the core for returning stub regulators in the case where normal regulator_get() fails and the board has requested it. Signed-off-by: Mark Brown <broonie@linaro.org> Acked-by: Chris Ball <cjb@laptop.org>
2013-07-30regulator: use dev_get_platdata()Jingoo Han
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-30regulator: pfuze100: Fix n_voltages setting for SW2~SW4 with high bit setAxel Lin
Current code adjust min_uV and uV_step but missed adjusting the n_voltages setting. When BIT6 is clear: n_voltages = (1975000 - 400000) / 25000 + 1 = 64 When BIT6 is set: n_voltages = (3300000 - 800000) / 50000 + 1 = 51 The n_voltages needs update because when BIT6 is set 0x73 ~ 0x7f are reserved. When using regulator_list_voltage_linear, the n_voltages does matter here because wrong n_voltages setting make the equation return wrong result. e.g. if selector is 63, regulator_list_voltage_linear returns 800000 + (50000 * 63) = 4000000 It should return -EINVAL if the selector is in the range of 51 ~ 63. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-29regulator: pfuze100: Use regulator_map_voltage_ascendAxel Lin
All table based voltage list have ascendant order. Use regulator_map_voltage_ascend for them. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-29regulator: pfuze100: Fix module alias prefixAxel Lin
i2c drivers use "i2c:" prefix for module alias. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-29regulator: pfuze100: Use i2c_[set|get]_clientdataAxel Lin
Since this is a i2c driver, use i2c_[set|get]_clientdata instead of dev_[set|get]_drvdata. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-29regulator: pfuze100: REGULATOR_PFUZE100 needs to select REGMAP_I2CAxel Lin
This fixes below build errors: CC [M] drivers/regulator/pfuze100-regulator.o drivers/regulator/pfuze100-regulator.c:342:21: error: variable 'pfuze_regmap_config' has initializer but incomplete type drivers/regulator/pfuze100-regulator.c:343:2: error: unknown field 'reg_bits' specified in initializer drivers/regulator/pfuze100-regulator.c:343:2: warning: excess elements in struct initializer [enabled by default] drivers/regulator/pfuze100-regulator.c:343:2: warning: (near initialization for 'pfuze_regmap_config') [enabled by default] drivers/regulator/pfuze100-regulator.c:344:2: error: unknown field 'val_bits' specified in initializer drivers/regulator/pfuze100-regulator.c:344:2: warning: excess elements in struct initializer [enabled by default] drivers/regulator/pfuze100-regulator.c:344:2: warning: (near initialization for 'pfuze_regmap_config') [enabled by default] drivers/regulator/pfuze100-regulator.c:345:2: error: unknown field 'max_register' specified in initializer drivers/regulator/pfuze100-regulator.c:345:2: warning: excess elements in struct initializer [enabled by default] drivers/regulator/pfuze100-regulator.c:345:2: warning: (near initialization for 'pfuze_regmap_config') [enabled by default] drivers/regulator/pfuze100-regulator.c:346:2: error: unknown field 'cache_type' specified in initializer drivers/regulator/pfuze100-regulator.c:346:2: warning: excess elements in struct initializer [enabled by default] drivers/regulator/pfuze100-regulator.c:346:2: warning: (near initialization for 'pfuze_regmap_config') [enabled by default] drivers/regulator/pfuze100-regulator.c: In function 'pfuze100_regulator_probe': drivers/regulator/pfuze100-regulator.c:370:2: error: implicit declaration of function 'devm_regmap_init_i2c' [-Werror=implicit-function-declaration] drivers/regulator/pfuze100-regulator.c:370:21: warning: assignment makes pointer from integer without a cast [enabled by default] cc1: some warnings being treated as errors make[2]: *** [drivers/regulator/pfuze100-regulator.o] Error 1 make[1]: *** [drivers/regulator] Error 2 make: *** [drivers] Error 2 Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
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