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path: root/drivers/regulator/tps65910-regulator.c (follow)
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2012-03-14regulator: tps65910: Provide settling time for DCDC voltage changeLaxman Dewangan1-13/+32
Settling time is require when there is dcdc rail's voltage change. Returning proper delay time for dcdc voltage change to settle down the output voltage to new value. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-13regulator: tps65910: Provide settling time for enabling railsLaxman Dewangan1-0/+37
There is settling time for each rails when it is switched to ON. Implementing enable time for returning proper settling time of regulator rails when it is enabled. Filling the on-time for each rail as per tps65910/tps65911 datasheets. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-13regulator: Fix the logic of tps65910_get_modeAxel Lin1-1/+1
We actually clear LDO_ST_ON_BIT for standby mode in tps65910_set_mode. Fix the logic in tps65910_get_mode. Supply state (EEPROM bits): ST[1:0] = 00 : Off ST[1:0] = 01 : On high power (ACTIVE) ST[1:0] = 10 : Off ST[1:0] = 11 : On low power (SLEEP) 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>
2012-03-11regulator: Rename set_voltage_sel callback function name to *_selAxel Lin1-7/+9
This change improves readability. 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>
2012-03-11regulator: tps65910: Sleep off rails when ext sleep configuredLaxman Dewangan1-4/+13
Keep the rails OFF in sleep mode only when the rails are controlled by external sleep control. The devices tps65910 and tps65911, both has the sleep input. The tps65911's sleep input is not same as tps65910's EN3 and hence taking care of SLEEP input as separate external sleep control input. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-11regulator: Fix module desciption for tps65910 regulatorAxel Lin1-1/+1
Fix the module desciption and also update Kconfig to include supporting tps65911 chip. 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>
2012-03-11regulator: tps65910: Correct VIO voltage configurationLaxman Dewangan1-2/+5
The VIO regulator register specify the voltage configuration on bit3:2 of its register. And hence only these bits should be modified when setting voltage and used when reading voltage from register setting. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-07regulator: tps65910: Configure correct value for VDDCTRL vout regLaxman Dewangan1-1/+1
As per datasheet, the voltage output is defined as from SEL[6:0] = 3 to 64 (dec) Vout= (SEL[6:0] × 12.5 mV + 562.5 mV) The list_voltage returns the vout as 600mV + selector * 12.5mV and so equivalent VSEL is selector + 3. Adding 3 on selector when configuring VSEL register for VDDCTRL output. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-30regulator: tps65910: Sleep control through external inputsLaxman Dewangan1-0/+206
Add support for sleep controls of different regulator through external inputs EN1, EN2 or EN3. Each regulator's output will be active when its external input is high and turns to OFF/Low power mode when its external input is low. The configuration parameters for sleep control is provided through board specific platform data. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-20regulator: tps65910: use appropriate variable names.Laxman Dewangan1-41/+41
Renaming the variables "table" to "voltage_table" and "table_len" to "n_voltages" of regulator information to have more meaningful. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-20regulator: tps65910: Initialize n_voltages for rails.Laxman Dewangan1-0/+11
Initializing the number of voltages supported by different rails of pmic device tps65911. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-20regulator: tps65910: Add regulator info for RTC railLaxman Dewangan1-0/+3
Adding missing regulator info for VRTC rail for device tps65911. The regulator voltage rail index start from VRTC which is defined as 0. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-23Merge remote-tracking branch 'regulator/topic/dt' into regulator-nextMark Brown1-1/+1
2011-11-23Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-nextMark Brown1-6/+8
2011-11-23regulator: pass additional of_node to regulator_register()Rajendra Nayak1-1/+1
With device tree support for regulators, its needed that the regulator_dev->dev device has the right of_node attached. To be able to do this add an additional parameter to the regulator_register() api, wherein the dt-adapted driver can then pass this additional info onto the regulator core. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-23regulator: TPS65910: Fix VDD1/2 voltage selector countAfzal Mohammed1-6/+8
Count of selector voltage is required for regulator_set_voltage to work via set_voltage_sel. VDD1/2 currently have it as zero, so regulator_set_voltage won't work for VDD1/2. Update count (n_voltages) for VDD1/2. Output Voltage = (step value * 12.5 mV + 562.5 mV) * gain With above expr, number of voltages that can be selected is step value count * gain count constant for gain count will be called VDD1_2_NUM_VOLT_COARSE existing constant for step value count is VDD1_2_NUM_VOLTS, use VDD1_2_NUM_VOLT_FINE instead to make clear that step value is not the only component in deciding selectable voltage count Signed-off-by: Afzal Mohammed <afzal@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-23regulator: TPS65910: Create an array for init dataKyle Manna1-3/+10
Create an array of fixed size for the platform to pass regulator initalization data through. Passing an array of pointers to init data also allows more flexible definition of init data as well as prevents reading past the end of the array should the platform define an incorrectly sized array. Signed-off-by: Kyle Manna <kyle.manna@fuel7.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-23regulator: TPS65910: Move regulator defs to headerKyle Manna1-24/+0
Move the regulator defintions to the header so that platform board file can use them to configure specific regulators. Signed-off-by: Kyle Manna <kyle.manna@fuel7.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-07-22regulator: tps65910: Fix array access out of bounds bugAxel Lin1-12/+43
For tps65910, the number of regulator is 13. ( ARRAY_SIZE(tps65910_regs) is 13) For tps65911, the number of regulator is 12. ( ARRAY_SIZE(tps65911_regs) is 12) If we are using this driver for tps65911, we hit array access out of bounds bug in tps65910_probe() because current implementation always assume the number of regulator is 13 and thus it will access tps65911_regs[12]. Fix it by setting correct num_regulators for both chips in tps65910_probe(), and allocated neccessay memory accordingly. 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>
2011-07-22regulator: tps65910: Add missing breaks in switch/caseAxel Lin1-0/+7
Also add a default case in tps65910_list_voltage_dcdc to silence 'volt' may be used uninitialized in this function warning. 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>
2011-07-22regulator: tps65910: Fix a memory leak in tps65910_probe error pathAxel Lin1-0/+1
Fix a memory leak if chip id is not matched. 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>
2011-05-27regulator: tps65911: Add new chip versionJorge Eduardo Candelaria1-34/+323
The tps65911 chip introduces new features, including changes in the regulator module. - VDD1 and VDD2 remain unchanged. - VDD3 is now named VDDCTRL and has a wider voltage range. - LDOs are now named LDO1...8 and voltage ranges are sequential, making LDOs easier to handle. Signed-off-by: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2011-05-27regulator: Fix desc_id for tps65023/6507x/65910Axel Lin1-2/+1
The desc_id variable should not be a static variable. The rest of the code assumes the desc_id must less than TPSxxxxx_NUM_REGULATOR. If we set desc_id to be a static variable, checking the return value of rdev_get_id() may return error. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Anuj Aggarwal <anuj.aggarwal@ti.com> Cc: Graeme Gregory <gg@slimlogic.co.uk> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2011-05-27TPS65910: Add tps65910 regulator driverGraeme Gregory1-0/+705
The regulator module consists of 3 DCDCs and 8 LDOs. The output voltages are configurable and are meant to supply power to the main processor and other components Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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