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path: root/drivers/regulator/wm8350-regulator.c
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2012-06-17regulator: wm8350: Reuse map_voltage() to get selector of a given uVAxel Lin
Reuse map_voltage() to get the selector of a given uV. Then we can remove wm8350_ldo_mvolts_to_val() and wm8350_dcdc_mvolts_to_val(). Also remove unused wm8350_dcdc_val_to_mvolts() function. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-17regulator: wm8350: Use wm8350_ldo_list_voltage instead of open code to ↵Axel Lin
verify selected voltage Call wm8350_ldo_list_voltage() instead of open code to verify selected voltage falls within specified range. Use wm8350_ldo_list_voltage() here is less error prone. wm8350_ldo_val_to_mvolts() is only used in wm8350_ldo_list_voltage now, so remove it and move the implementation to wm8350_ldo_list_voltage(). This patch also include below small changes in wm8350_ldo_map_voltage: 1. wm8350_ldo_map_voltage() returns selector, thus rename variable mV to sel. 2. Use DIV_ROUND_UP macro to calculate selector. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-13regulator: wm8350: Add missing min_uV and uV_step settings for DCDC4Axel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-04regulator: wm8350: Convert LDOs to set_voltage_sel()Mark Brown
Since there are two linear ranges for the LDO voltages provide a voltage mapping function and then use regulator_set_voltage_sel_regmap(). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-03regulator: wm8350: Use regulator_map_voltage_linear for wm8350_dcdc_opsAxel Lin
wm8350_dcdc_ops uses simple linear voltage maps. Thus use regulator_map_voltage_linear is more efficient than using the default regulator_map_voltage_iterate. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-03regulator: wm8350: Convert DCDCs to set_voltage_sel() and linear voltagesMark Brown
The WM8350 DCDCs have a simple linear mapping from selectors to voltages so can be converted very simply to use the new infrastructure for a nice reduction in code size. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-03regulator: wm8350: Convert to core regmap-based enable operationsMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-03regulator: wm8350: Convert to use core regmap vsel readbackMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-04-10Merge tag 'v3.4-rc2' into regulator-driversMark Brown
Linux 3.4-rc2 contains some fixes that further patches depend upon.
2012-04-09regulator: core: Use a struct to pass in regulator runtime configurationMark Brown
Rather than adding new arguments to regulator_register() every time we want to add a new bit of dynamic information at runtime change the function to take these via a struct. By doing this we avoid needing to do further changes like the recent addition of device tree support which required each regulator driver to be updated to take an additional parameter. The regulator_desc which should (mostly) be static data is still passed separately as most drivers are able to configure this statically at build time. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-04-04regulator: wm8350: Constify regulator_descMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-29regulator: Only update [LDOx|DCx]_HIB_MODE bits in ↵Axel Lin
wm8350_[ldo|dcdc]_set_suspend_disable What we want is to disable output by setting [LDOx|DCx]_HIB_MODE bits. Current code also clears other bits in LDOx/DCDCx Low Power register. R202 (CAh) LDO1 Low Power BIT[13:12] LDO1 Hibernate behaviour: 00 = Select voltage image settings 01 = disable output 10 = reserved 11 = reserved R182 (B6h) DCDC1 Low Power BIT[14:12] DC-DC1 Hibernate behaviour: 000 = Use current settings (no change) 001 = Select voltage image settings 010 = Force standby mode 011 = Force standby mode and voltage image settings. 100 = Force LDO mode 101 = Force LDO mode and voltage image settings. 110 = Reserved. 111 = Disable output Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-28regulator: Return microamps in wm8350_isink_get_currentAxel Lin
The values in isink_cur array are microamps. The regulator core expects get_current_limit callback to return microamps. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-28regulator: wm8350: Fix the logic to choose best current limit settingAxel Lin
Current implementation in get_isink_val actually choose the biggest current limit setting falls within the specified range. What we want is to choose the smallest current limit setting falls within the specified range. Fix it. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-26regulator: Do proper shift to set correct bit for DC[2|5]_HIB_MODE settingAxel Lin
DC[2|5]_HIB_MODE is BIT 12 of DCDC[2|5] Control register. WM8350_DC2_HIB_MODE_ACTIVE/WM8350_DC2_HIB_MODE_DISABLE are defined as 1/0. Thus we need to left shift WM8350_DC2_HIB_MODE_SHIFT bits. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-26regulator: Fix restoring pmic.dcdcx_hib_mode settings in ↵Axel Lin
wm8350_dcdc_set_suspend_enable What we want is to restore wm8350->pmic.dcdcx_hib_mode settings to WM8350_DCDCx_LOW_POWER registers. Current code also clears all other bits of WM8350_DCDCx_LOW_POWER registers which is wrong. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-12regulator: Use DIV_ROUND_CLOSEST in wm8350_isink_get_currentAxel Lin
DIV_ROUND_CLOSEST performs the computation (x + d/2)/d with better readability. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-02-02regulator: wm8350: Don't specify consumer supplies with struct deviceMark Brown
Very, very deprecated. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-23regulator: pass additional of_node to regulator_register()Rajendra Nayak
With device tree support for regulators, its needed that the regulator_dev->dev device has the right of_node attached. To be able to do this add an additional parameter to the regulator_register() api, wherein the dt-adapted driver can then pass this additional info onto the regulator core. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-01-12regulator: Convert WM835x to use get_voltage_sel()Mark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2011-01-12regulator: Report actual configured voltage to set_voltage()Mark Brown
Change the interface used by set_voltage() to report the selected value to the regulator core in terms of a selector used by list_voltage(). This allows the regulator core to know the voltage that was chosen without having to do an explict get_voltage(), which would be much more expensive as it will generally access hardware. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-09-06regulator: wm8350-regulator - fix the logic of checking ↵Axel Lin
REGULATOR_MODE_STANDBY mode In wm8350_dcdc_set_mode(), we set DCx_SLEEP bit of WM8350_DCDC_SLEEP_OPTIONS register for REGULATOR_MODE_STANDBY mode. ( DCx_SLEEP bits: 0: Normal DC-DC operation 1: Select LDO mode ) In wm8350_dcdc_get_mode(), current logic to determinate REGULATOR_MODE_STANDBY mode is just reverse. ( sleep is set should mean REGULATOR_MODE_STANDBY mode. ) Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-27wm8350-regulator: fix wm8350_register_regulator error handlingAxel Lin
In the case of platform_device_add() fail, we should call platform_device_put() instead of platform_device_del() Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-03-07mfd: Add a data argument to the WM8350 IRQ free functionMark Brown
To better match genirq. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-03regulator: Implement enable_time() for WM835x ISINKsMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-02-01regulator: Specify REGULATOR_CHANGE_STATUS for WM835x LED constraintsMark Brown
The WM8350 LED driver needs to be able to enable and disable the regulators it is using. Previously the core wasn't properly enforcing status change constraints so the driver was able to function but this has always been intended to be required. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@kernel.org Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-13mfd: Mask and unmask wm8350 IRQs on request and freeMark Brown
Bring the WM8350 IRQ API more in line with the generic IRQ API by masking and unmasking interrupts as they are requested and freed. This is mostly just a case of deleting the mask and unmask calls from the individual drivers. The RTC driver is changed to mask the periodic IRQ after requesting it rather than only unmasking the alarm IRQ. If the periodic IRQ fires in the period where it is reqested then there will be a spurious notification but there should be no serious consequences from this. The CODEC drive is changed to explicitly disable headphone jack detection prior to requesting the IRQs. This will avoid the IRQ firing with no jack set up. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-12-13mfd: Convert wm8350 IRQ handlers to irq_handler_tMark Brown
This is done as simple code transformation, the semantics of the IRQ API provided by the core are are still very different to those of genirq (mainly with regard to masking). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-09-22regulator: add check index of wm8350->pmic.pdev[]Roel Kluin
Ensure that reg is within the bounds of array wm8350->pmic.pdev[]. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-06-15regulator: Set MODULE_ALIAS for regulator driversMark Brown
Several of the regulator drivers didn't have MODULE_ALIAS so couldn't be auto loaded. Add the MODULE_ALIAS in case they do get built as modules. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-03-31regulator: Implement list_voltage for WM835x LDOs and DCDCsMark Brown
Implement the recently added voltage step listing API for the WM835x DCDCs and LDOs. DCDCs can use values up to 0x66, LDOs can use the full range of values in the mask. Both masks are the lower bits of the register. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-03-31regulator: Fix get_mode() for WM835x DCDCsMark Brown
The WM835x regulators need a different register checking for force mode on each DCDC. Previously the force mode status for DCDC1 was checked. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-03-31regulator: Pass regulator init data as explict argument when registeringMark Brown
Rather than having the regulator init data read from the platform_data member of the struct device that is registered for the regulator make the init data an explict argument passed in when registering. This allows drivers to use the platform data for their own purposes if they wish. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-03-31Regulator: Push lock out of _notifier_call_chain + add voltage change event.Jonathan Cameron
Regulator: Push lock out of _notifier_call_chain and into caller functions (side effect of fixing deadlock in regulator_force_disable) + Add a voltage changed event. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-01-30leds: Fix bounds checking of wm8350->pmic.ledRoel Kluin
Fix bounds checking of wm8350->pmic.led Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-01-08leds: Add WM8350 LED driverMark Brown
The voltage and current regulators on the WM8350 AudioPlus PMIC can be used in concert to provide a power efficient LED driver. This driver implements support for this within the standard LED class. Platform initialisation code should configure the LED hardware in the init callback provided by the WM8350 core driver. The callback should use wm8350_isink_set_flash(), wm8350_dcdc25_set_mode() and wm8350_dcdc_set_slot() to configure the operating parameters of the regulators for their hardware and then then use wm8350_register_led() to instantiate the LED driver. This driver was originally written by Liam Girdwood, though it has been extensively modified since then. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
2009-01-04mfd: Support configurable numbers of DCDCs and ISINKs on WM8350Mark Brown
Some WM8350 variants have fewer DCDCs and ISINKs. Identify these at probe and refuse to use the absent DCDCs when running on these chips. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-10-13regulator: Add WM8350 regulator supportMark Brown
The WM8350 features six DCDC convertors (four buck and two boost), four LDO voltage regulators and two constant current sinks. This driver adds support for these through the regulator API. This driver was written by Liam Girdwood with updates for submission from Mark Brown. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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