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rdev->desc->uV_step * abs(new_selector - old_selector) returns uV.
The unit of ramp_delay is mV/us.
Current code multiples 1000 at wrong place.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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>
This patch adds regulator_set_voltage_time_sel(), to move into core, the
commonly used code by drivers to provide the .set_voltage_time_sel callback.
It will also allow us to configure different ramp delay for different
regulators easily.
Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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>
isl_fixed_ops does not implement set_voltage_sel callback, adding map_voltage
here is misleading.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Also adds tps6586x_ldo0_voltages mapping table for LDO0, so we can remove the
hack in tps6586x_list_voltage() and convert it to regulator_list_voltage_table.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
It's a little bit hard to read that the "else" case means id == PALMAS_REG_SMPS10.
if (id != PALMAS_REG_SMPS10){
do something for the cases id != PALMAS_REG_SMPS10;
} else {
do something for the case id == PALMAS_REG_SMPS10;
}
This patch changes above syntax to switch statement.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Current code actually clears more bits than PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK bits.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
For linear mappings, we can use below equation to get the voltage difference
between new_selector and old_selector:
abs(new_selector - old_selector) * rdev->desc->uV_step
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
For fixed voltage, DA9030_LDO13 and DA9034_LDO5, the info->vol_reg is
DA9030_INVAL/DA9034_INVAL.
It does not make sense to read/write to DA9030_INVAL/DA9034_INVAL address.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Fixed voltage is a kind of linear mapping where n_voltages is 1.
This change allows [list|map]_voltage_linear to be used for fixed
voltage.
For fixed voltage, n_voltages is 1 and the only valid selector is 0.
Thus we actually don't care the uV_step setting.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The voltage mapping table for LDO2 is exactly the same as VDCDCx.
Thus we can use one mapping table for both LDO2 and VDCDCx instead of
duplicating the mapping table.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The min_uV and max_uV are not used in this driver.
For table based voltage mappings, we can get min_uV and max_uV by
info->table[0] and info->table[table_len -1].
Thus remove min_uV and max_uV from struct tps_info.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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>
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>
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>
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>
The 'name' field in 'struct of_regulator_match' expects to match with
its corresponding regulator device node in the Device Tree. This patch
renames each of the regulators in the db8500-prcum regulator driver so
this is true.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The 'name' field in 'struct of_regulator_match' expects to match with
its corresponding regulator device node in the Device Tree. This patch
renames each of the regulators in the ab8500 regulator driver so this
is true.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Use the new of_match_ptr() macro for the of_match_table
pointer entry to avoid having to #define match NULL.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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>
wm8400_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>
wm831x_alive_ldo_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>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
If no regmap is explicitly specified then use dev_get_regmap() to obtain
one. The driver must explicitly enable any actual usage of the regmap
so there's no concern with unwanted usage.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
devres_release() will call the destructor for the resource as well as
freeing the devres data.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
If the regulator is not on, it won't take time setting new voltage.
So only call set_voltage_time_sel() to get the necessary delay when
the regulator is on.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Some regulator hardware use table based mapping can set volt_table in
regulator_desc and use regulator_list_voltage_table() for their list_voltage
callback.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Merge tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Pull MFD changes from Samuel Ortiz:
"Besides the usual cleanups, this one brings:
* Support for 5 new chipsets: Intel's ICH LPC and SCH Centerton,
ST-E's STAX211, Samsung's MAX77693 and TI's LM3533.
* Device tree support for the twl6040, tps65910, da9502 and ab8500
drivers.
* Fairly big tps56910, ab8500 and db8500 updates.
* i2c support for mc13xxx.
* Our regular update for the wm8xxx driver from Mark."
Fix up various conflicts with other trees, largely due to ab5500 removal
etc.
* tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (106 commits)
mfd: Fix build break of max77693 by adding REGMAP_I2C option
mfd: Fix twl6040 build failure
mfd: Fix max77693 build failure
mfd: ab8500-core should depend on MFD_DB8500_PRCMU
gpio: tps65910: dt: process gpio specific device node info
mfd: Remove the parsing of dt info for tps65910 gpio
mfd: Save device node parsed platform data for tps65910 sub devices
mfd: Add r_select to lm3533 platform data
gpio: Add Intel Centerton support to gpio-sch
mfd: Emulate active low IRQs as well as active high IRQs for wm831x
mfd: Mark two lm3533 zone registers as volatile
mfd: Fix return type of lm533 attribute is_visible
mfd: Enable Device Tree support in the ab8500-pwm driver
mfd: Enable Device Tree support in the ab8500-sysctrl driver
mfd: Add support for Device Tree to twl6040
mfd: Register the twl6040 child for the ASoC codec unconditionally
mfd: Allocate twl6040 IRQ numbers dynamically
mfd: twl6040 code cleanup in interrupt initialization part
mfd: Enable ab8500-gpadc driver for Device Tree
mfd: Prevent unassigned pointer from being used in ab8500-gpadc driver
...
