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path: root/drivers/regulator/max8998.c
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* regulator: max8998 BUCK1/2 voltage change with use of GPIOsLukasz Majewski2010-10-28
| | | | | | | | | | | | | | | | | | | | | | max8998_pmic_probe: - modified to check if valid pins are defined at platform data - maximal voltage values (predefined at platform data) are uploaded to max8998 device max8998_set_voltage_buck: - BUCK1/2 voltages change between values already defined - Checks if valid GPIO pins are passed from platform data - If requested voltage cannot be satisfied from already defined values, then one of free slots is used - Predefined maximum voltages (as defined at platform data) are always available Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* regulator: max8998 BUCK1/2 internal voltages and indexes definedLukasz Majewski2010-10-28
| | | | | | | | | | | | BUCK1/2 internal voltages and indexes defined in the struct max8998_data max_get_voltage_register now uses index values to chose proper register More generic BUCK1/2 registers names provided Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* regulator: Separate set_voltage for max8998 ldo and buckLukasz Majewski2010-10-28
| | | | | | | | Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Use i2c_client as an argument on MAX8998 i2c routinesJoonyoung Shim2010-10-28
| | | | | | | | | | | | | The MAX8998 chip have regulator and rtc features. The i2c slave address of regulator and rtc is different, so needs each i2c client on i2c operation functions. Also, this patch exports i2c operation functions instead of callback to make easy to read. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* regulator: set max8998->dev to &pdev->dev.Axel Lin2010-09-01
| | | | | | | | | | | max8998->dev is NULL in current implementation, set it to &pdev->dev. regulator_register() still return success if max8998->dev is NULL, but rdev->dev.parent will be set to NULL which is incorrect. 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>
* regulator: max8998 - set max8998->num_regulatorsAxel Lin2010-09-01
| | | | | | | | | Set max8998->num_regulators = pdata->num_regulators, otherwise it's default value is 0. 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>
* regulator: max8998 - fix memory allocation size for max8998->rdevAxel Lin2010-09-01
| | | | | | | | | | We only use max8998->rdev[0] .. max8998->rdev[pdata->num_regulators-1], max8998->rdev[pdata->num_regulators] is not used. Thus fix the memory allocation size. 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>
* max8998: fix off-by-one value range checkingAxel Lin2010-08-11
| | | | | | | | | | | In max8998_list_voltage() and max8998_set_voltage(), we use ldo as array index of ldo_voltage_map. Thus the valid range should be 0 .. ARRAY_SIZE(ldo_voltage_map)-1. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* regulator: MAX8998: set_voltage bugfix. ramp_up delay and min/max voltageMyungJoo Ham2010-08-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two issues are addressed for max8998_set_voltage function. 1. Min/Max Voltage. max8998_set_voltage had been using the voltage value of min ( voltage[i] >= max_vol , i ) This is corrected to use: min ( voltage[i] >= min_vol , i ) 2. Ramp Up Delay. max8998_set_voltage should provide delay for BUCK1/2 if ENRAMP is on. It reads RAMP value from ONOFF4 register to determine RAMP delay length. However, when max8998_set_voltage's new voltage is lower than the previous, we don't care because it does not deteriorate the stability. Changes since v1: - rebased onto latest regulator-for-next tree Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* drivers: regulator: add Maxim 8998 driverKyungmin Park2010-08-11
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> This patch adds voltage regulator driver for Maxim 8998 chip. This chip is used on Samsung Aquila and GONI boards and provides following functionalities: - 4 BUCK voltage converters, 17 LDO power regulators and 5 other power controllers - battery charger This patch adds basic driver for voltage regulators and MAX 8998 MFD core. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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