Signed-off-by: Axel Lin <axel.lin@gmail.com>
Tested-by: Jett Zhou <jtzhou@marvell.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Tested-by: Jett Zhou <jtzhou@marvell.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Then we can remove the vol_nbits field from struct pm8607_regulator_info.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Tested-by: Jett Zhou <jtzhou@marvell.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Current code implements pm8607_list_voltage but does not set the list_voltage
callback function in pm8607_regulator_ops. Fix it.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Tested-by: Jett Zhou <jtzhou@marvell.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

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>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

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: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Integer division may truncate the result.
Current code shows changing current is 0mA when selector is 1 ... 8.

For example:
selector = 1
ad5398_calc_current returns 117, debug message shows 117/1000 = 0mA
selector = 2
ad5398_calc_current returns 234, debug message shows 234/1000 = 0mA
selector = 3
ad5398_calc_current returns 351, debug message shows 351/1000 = 0mA
............
selector = 8
ad5398_calc_current returns 937, debug message shows 937/1000 = 0mA

Show the changing current in uA makes it easier for debugging.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

The client field of struct tps_pmic is not used after converting to regmap API.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

The client field of struct tps62360_chip is not used after converting to regmap.
The name field of struct tps62360_chip is not used in this driver.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

In current implementation, da9052_ldo_ops and da9052_ldo5_6_ops are very
similar, only the set_voltage is slightly different.
da9052_buckperi_ops and da9052_dcdc_ops are also similar.

This patch adds da9052_regulator_set_voltage for the set_voltage callback
used by all LDOs and DCDCs. Rework da9052_get_regulator_voltage_sel and
da9052_set_dcdc_voltage to make it possible to be shared by all DCDCs.
Rework da9052_list_voltage to make it to be shared by all DCDCs and LDOs.

Then we can remove da9052_ldo5_6_ops and da9052_buckperi_ops.
We can also remove DA9052_LDO5_6 and DA9052_BUCKPERI macros which is not used
now.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

The regulator name for LDOs are LDO4 ... LDO13 in current implementation.
The correct regulator name for LDOs should be LDO1 ... LDO10.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

This patch also changes the define for TPS65023_LDO_CTRL_LDOx_MASK,
because regmap_update_bits actually does:
        (orig & ~mask) | (val & mask)
This change makes the code consists for all regmap_update_bits calls.

Also removes some uninformative comments.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

MAX8997_VOLTAGE_REGULATOR macro has _name and _ops parameters so we can use it
for all regulators with REGULATOR_VOLTAGE type.
The MAX8997_VOLTAGE_REGULATOR now replaces regulator_desc_ldo and
regulator_desc_buck macros.

MAX8997_CURRENT_REGULATOR is for CHARGER and CHARGER_TOPOFF.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Check max8997->buck[1|2|5]_gpiodvs status in max8997_get_voltage_register
and return correct register accordingly.
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: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Both _en_bit and _ops parameters for all DCDCs and FETs are the same, so we
can hardcode it in tps65090_REG macro.

_en_reg can be calculated by _id + 12, so we can also remove it.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

regulator_register never returns NULL.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Now all the callback implementation are the same for both ldo and dvm
regulator_ops, merge them to tps6586x_regulator_ops.

Also rename tps6586x_ldo_list_voltage to tps6586x_list_voltage.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Convert both tps6586x_[ldo|dvm]_set_voltage to one set_voltage_sel callback.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

This also fixes a bug, LDO0 has minimal voltage 1.2V rather than 1.25V.
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>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

After converting to set_voltage_sel, we can remove the workaroud of getting
the best match voltage for V1. The core will iterate through the whole voltage
table and find the best match for us.
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: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-By: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Add TPS65090 regulator driver

TPS65090 PMIC from TI consists of 3 step down converters,
2 always on LDOs and 7 current limited load switches. The
output voltages are ON/OFF controllable and are meant to
supply power to the components on target board.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Do not assume the gpio regulator states map is sorted in any order.
This patch ensures we always set the smallest voltage/current that falls within
the specified range.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Rather than replicating the core support for always on regulators use
a different set of ops with none of the enable related operations provided
when we don't have any ops. This ensures that we automatically pick up
any enhanced support for such regulators that the core has such as the
warnings about regulation constraints that can't be used.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Now tps65912_get_voltage_dcdc and tps65912_get_voltage_ldo has exactly the same
implementation. We can merge them to tps65912_get_voltage function.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Merge tps65912_list_voltage_dcdc and tps65912_list_voltage_ldo to
tps65912_list_voltage.  This change does not add too much complexity in
tps65912_list_voltage function.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

The syntax "(((vid >> 1) % 2) == 1)" is inefficient and also hard to read.
Use bitwidse AND operator instead.
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>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Convert ab8500 to set_voltage_sel and then we can remove
ab8500_get_best_voltage_index function.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Convert pcf50633 to get_voltage_sel and then we can remove
pcf50633_regulator_voltage_value function and move its implementation
to pcf50633_regulator_list_voltage.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

The datasheet says 00000000 to 00101110 are reserved, and the min value of the
voltage setting is 1.8 V.
Thus don't write 0 to AUTO output voltage select register (address 1Ah).

Table 50. AUTOOUT - AUTO output voltage select register (address 1Ah) bit description[1]
Bit Symbol Access Description
7:0 auto_out R/W VO(prog) = 0.625 + auto_out × 0.025 V
eg. 00000000 to 00101110: reserved
00101111: 1.8 V (min)
01010011: 2.7 V
01101010: 3.275 V
01101011: 3.300 V
01101100: 3.325 V
01111111 : 3.800 V (max)
..... .....
11111110 : 3.800 V
11111111 : 3.800 V

This patch also fixes a bug in pcf50633_regulator_list_voltage:
In regulator core _regulator_do_set_voltage function:

        if (rdev->desc->ops->set_voltage) {
                ret = rdev->desc->ops->set_voltage(rdev, min_uV, max_uV,
                                                   &selector);

                if (rdev->desc->ops->list_voltage)
                        selector = rdev->desc->ops->list_voltage(rdev,
                                                                 selector);
                else
                        selector = -1;

The list_voltage call here takes the selector got from set_voltage callback.
Thus adding 0x2f to the index in pcf50633_regulator_list_voltage looks wrong to me.

e.g.
If min_uV < 1.8V, pcf50633_regulator_set_voltage sets 0 to selector.
For this case, adding 0x2f to the index in pcf50633_regulator_list_voltage is correct.
However, if min_uV == 1.8V, pcf50633_regulator_set_voltage sets 0x2f to selector.
Adding 0x2f to the index in pcf50633_regulator_list_voltage in this case is wrong.

What this patch does is:
The minimal voltage setting for AUTOOUT is 0x2f.
Thus for the case min_uV < 1.8, set the voltage setting to 1.8V by writting
0x2f to AUTOOUT register and set selector = 0x2f.
So we don't write the rserved range to AUTOOUT register.
Which means the possible range of AUTOOUT register value is 0x2f ~ 0xff.

We have no problem in regulator_get_voltage.
Since we won't write 0~0x2e to AUTOOUT register, we have no problem converting
the bits we read to voltage. The equation in auto_voltage_value works fine.

For list_voltage, we need to take into account the case selector is 0 ~ 0x2e
because the regulator core assumes the selector is starting from 0.
This patch returns 0 for the cases selector is 0 ~ 0x2e, which means
"this selector code can't be used on this system".

The regulator core iterates from 0 to n_voltages to find the small voltage
in the specific range. The n_voltages settings for AUTOOUT should be 128 now,
including the reserved range of AUTOOUT.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

S5M8767A has 4 operation mode for BUCK/LDOs.
This patch can handle opmode for s5m8767a.
Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

This patch add variables for opmode of s5m series.
S5M series have 4 operation modes.
Off mode is always regulator off mode.
On mode is always regulator on mode.
Lowpower mode is that regualtor operate in low-power.
Suspend mode is that regulator operation depends on AP suspend mode.
Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>