Call regulator_[get|set]_voltage_sel_regmap instead of open code.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Ying-Chun Liu <paulliu@debian.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

By setting linear_min_sel to anatop_reg->min_bit_val, we can avoid
adjust the anatop_reg->min_bit_val offset in [set|get]_voltage_sel.

With this chance we can refactor this driver to use
regulator_[get|set]_voltage_sel_regmap.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Ying-Chun Liu <paulliu@debian.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

This is required since commit f7df20ec
"regulator: core: Use list_voltage() to read single voltage regulators",
otherwise _regulator_get_voltage returns rdev->desc->ops->list_voltage(rdev, 0).

The Maxim 1586 controls V3 and V6 voltages, but offers no way of reading back
the set up value. Thus this patch caches the setting when setting new voltage.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Simply use devm_gpio_request_one() instead.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

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

To clear the mask bit, setting data argument to be 0 with proper mask setting
for lp8788_update_bits. We don't need the var array here.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Use of_match_ptr and add ifdef CONFIG_OF guard for regulator_gpio_of_match.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

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

Don't adjust the selector in [get|set]_voltage_sel, fix it in list_voltage() instead.

For smps*(except smps10), the vsel reg-value and voltage mapping as below:

reg-value       volt (uV) ( Assume RANGE is x1 )
0               0
1               500000
2               500000
3               500000
4               500000
5               500000
6               500000 (0.49V + 1 * 0.01V) * RANGE
7               510000 (0.49V + 2 * 0.01V) * RANGE
8               520000 (0.49V + 3 * 0.01V) * RANGE
9               530000 (0.49V + 4 * 0.01V) * RANGE
....

The linear mapping is start from selector 6.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Introduce a regulator_can_change_voltage() function for the subsytems or
drivers which might check if applying voltage change is possible and use
special workaround code when the driver is used with fixed regulators or
regulators with disabled ability to change the voltage.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

If pdata->base_voltage_uV is missing or the settings of pdata->base_voltage_uV
and pdata->max_voltage_uV are out of range, TPS51632_VOLT_VSEL macro
returns wrong vsel.

Thus add checking [base|max]_voltage_uV pdata settings in probe.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Merge branch 'topic/tps51632' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-min

Conflicts:
	drivers/regulator/tps51632-regulator.c

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

This driver can be converted to use linear_min_sel and
regulator_[map|list]_voltage_linear.

Below shows the equation (from Datasheet) for each LDOs.

For AUTOOUT:
        VO(prog) = 0.625 + auto_out x 0.025 V; e.g.
        (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)

        The linear mapping start from 0x2f selector.

        Thus we convert this equation to:
        VO(prog) = 1.8 + (selector - linear_min_sel) x 0.025 V
        (min_uV = 1800000, uV_step = 25000, linear_min_sel = 0x2f)

For DOWNxOUT:
        VO(prog) = 0.625 + downx_out x 0.025 V; e.g.
        00000000 : 0.625 V (min)
        00010111 : 1.200 V
        00101111 : 1.800 V
        01011111 : 3.000 V (max)

For xLDOOUT:
        VO(prog) = 0.9 + xldo_out x 0.1 V; e.g.
        00000: 0.9 V
        00001: 1.0 V
        11000 : 3.3 V
        11011 : 3.6 V
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

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

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