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path: root/drivers/regulator/as3722-regulator.c
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2014-08-05Merge remote-tracking branches 'regulator/topic/88pm800', ↵Mark Brown1-2/+2
'regulator/topic/ab8500', 'regulator/topic/act8865', 'regulator/topic/as3722' and 'regulator/topic/bcm590xx' into regulator-next
2014-06-24regulator: as3722: Fix incorrect parameter initializationSachin Kamat1-2/+2
'name' field was re-initialized and getting overwritten in some cases possibly due to a typo. Code inspection says the second time it should be 'sname' instead of 'name'. Replace it. Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com> Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-06-03regulator: as3722: Make 0 a valid selectorThierry Reding1-0/+2
As of commit 064d5cd110f9 (regulator: core: Fix the init of DT defined fixed regulators) the regulator core tries to query the current voltage of a regulator when applying constraints. This exposes a bug in the AS3722 regulator driver which fails to read the voltage of disabled regulators. The reason is that the hardware is programmed to a selector of 0, but none of the voltage tables include 0 as a valid selector. The datasheets indicate that 0 is a valid selector when the regulators are powered off. To fix this, add a range including selector 0 to the voltage tables. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-02-18regulator: as3722: Add missing of_node_putSachin Kamat1-0/+1
Add of_node_put to decrement the ref count. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-23Merge remote-tracking branches 'regulator/fix/pfuze100', ↵Mark Brown1-7/+27
'regulator/fix/s5m8767', 'regulator/topic/ab8500', 'regulator/topic/act8865', 'regulator/topic/anatop', 'regulator/topic/arizona' and 'regulator/topic/as3722' into regulator-linus
2014-01-06regulator: as3722: set enable time for SD0/1/6Vince Hsu1-0/+1
Add an enable time of 600us for SD0/1/6 to ensure that we have enough setup time for the power rail. Signed-off-by: Vince Hsu <vinceh@nvidia.com> Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-01-06regulator: as3722: detect SD0 low-voltage modeAndrew Bresticker1-4/+26
SD0 may operate in low-voltage mode, with a minimum of 0.41V and a maximum of 1.5V. This is indicated by bit 4 of FUSE7. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Signed-off-by: Vince Hsu <vinceh@nvidia.com> broonie.e6264@m.evernote.com Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-20regulator: as3722: Don't set min_uV/uV_step/linear_min_sel for linear_rangesAxel Lin1-3/+0
These settings are not used when using linear_ranges and it makes the code looks confusing. Thus remove them. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-02regulator: as3722: set the correct current limitVince Hsu1-1/+1
Simple fix to set the correct current limit for SD0/1/6. Signed-off-by: Vince Hsu <vinceh@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org> Fixes: bc407334e9a6 (regulator: as3722: add regulator driver for AMS AS3722) Cc: stable@vger.kernel.org
2013-10-11regulator: Add REGULATOR_LINEAR_RANGE macroAxel Lin1-13/+5
Add REGULATOR_LINEAR_RANGE macro and convert regulator drivers to use it. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-11regulator: Remove max_uV from struct regulator_linear_rangeAxel Lin1-1/+0
linear ranges means each range has linear voltage settings. So we can calculate max_uV for each linear range in regulator core rather than set the max_uV field in drivers. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-03regulator: as3722: Fix off-by-one n_voltages setting for SDxAxel Lin1-7/+7
AS3722_SDx_VSEL_MAX means the maximum selecter, the n_voltages should be AS3722_SDx_VSEL_MAX + 1. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-03regulator: as3722: Fix equation to calculate max_uV in regulator_lin_range macroAxel Lin1-5/+5
Fix off-by-one in the equation to calculate max_uV and also adjust the _min_uV setting accordingly. For LDOs: The voltage select bits set the LDO output voltage 0.825V...3.3V, 25mV steps ....00h : LDO off 01h-24h : V_LDO4 = 0.8V + ldo4_vsel * 25mV = 0.825V + (ldo4_vsel - 1h) * 25mV 25h-3Fh : do not use 40h-7Fh : V_LDO4 = 1.725V + (ldo4_vsel - 40h) * 25mV For SD2345: The voltage select bits set the DC/DC output voltage level and power the DC/DC converter down. ....00h : DC/DC powered down 01h-40h : V_SD2 = 0.6V + sd2_vsel * 12.5mV = 0.6125V + (sd2_vsel - 1h) * 12.5mV 41h-70h : V_SD2 = 1.4V + (sd2_vsel - 40h) * 25mV = 1.425V + (sd2_vsel - 41h) * 25mV 71h-7Fh : V_SD2 = 2.6V + (sd2_vsel - 70h) * 50mV = 2.65V + (sd2_vsel - 71h) * 50mV Note, the third entry in as3722_sd2345_ranges is wrong in current code. Fix it based on the datasheet. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-09-20regulator: as3722: add regulator driver for AMS AS3722Laxman Dewangan1-0/+917
The AMS AS3722 is a compact system PMU suitable for mobile phones, tablets etc. It has 4 DCDC step down regulators, 3 DCDC step down controller, 11 LDOs. Add a driver to support accessing the DCDC/LDOs found on the AMS AS3722 PMIC using regulators. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Florian Lobmaier <florian.lobmaier@ams.com> Signed-off-by: Mark Brown <broonie@linaro.org>
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