443 lines
14 KiB
C
443 lines
14 KiB
C
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/*
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* Regulators driver for Marvell 88PM8607
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*
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* Copyright (C) 2009 Marvell International Ltd.
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* Haojian Zhuang <haojian.zhuang@marvell.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <linux/i2c.h>
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#include <linux/of.h>
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#include <linux/regulator/of_regulator.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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#include <linux/mfd/88pm860x.h>
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#include <linux/module.h>
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struct pm8607_regulator_info {
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struct regulator_desc desc;
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struct pm860x_chip *chip;
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struct regulator_dev *regulator;
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struct i2c_client *i2c;
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struct i2c_client *i2c_8606;
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unsigned int *vol_table;
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unsigned int *vol_suspend;
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int slope_double;
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};
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static const unsigned int BUCK1_table[] = {
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725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000,
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925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000,
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1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,
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1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,
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0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
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200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
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400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
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600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
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};
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static const unsigned int BUCK1_suspend_table[] = {
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0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
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200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
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400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
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600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
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800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
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1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
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1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
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1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
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};
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static const unsigned int BUCK2_table[] = {
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0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
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400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
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800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
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1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
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1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
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2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
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2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
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2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
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};
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static const unsigned int BUCK2_suspend_table[] = {
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0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
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400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
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800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
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1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
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1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
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2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
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2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
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2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
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};
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static const unsigned int BUCK3_table[] = {
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0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
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200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
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400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
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600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
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800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
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1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
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1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
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1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
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};
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static const unsigned int BUCK3_suspend_table[] = {
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0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
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200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
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400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
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600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
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800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
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1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
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1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
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1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
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};
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static const unsigned int LDO1_table[] = {
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1800000, 1200000, 2800000, 0,
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};
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static const unsigned int LDO1_suspend_table[] = {
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1800000, 1200000, 0, 0,
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};
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static const unsigned int LDO2_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
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};
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static const unsigned int LDO2_suspend_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
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};
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static const unsigned int LDO3_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
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};
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static const unsigned int LDO3_suspend_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
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};
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static const unsigned int LDO4_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000,
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};
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static const unsigned int LDO4_suspend_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000,
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};
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static const unsigned int LDO5_table[] = {
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2900000, 3000000, 3100000, 3300000,
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};
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static const unsigned int LDO5_suspend_table[] = {
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2900000, 0, 0, 0,
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};
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static const unsigned int LDO6_table[] = {
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1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000,
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};
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static const unsigned int LDO6_suspend_table[] = {
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1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000,
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};
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static const unsigned int LDO7_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
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};
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static const unsigned int LDO7_suspend_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
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};
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static const unsigned int LDO8_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
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};
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static const unsigned int LDO8_suspend_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
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};
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static const unsigned int LDO9_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
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};
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static const unsigned int LDO9_suspend_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
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};
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static const unsigned int LDO10_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
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1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
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};
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static const unsigned int LDO10_suspend_table[] = {
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1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
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1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
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};
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static const unsigned int LDO12_table[] = {
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1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000,
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1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
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};
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static const unsigned int LDO12_suspend_table[] = {
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1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000,
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1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
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};
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static const unsigned int LDO13_table[] = {
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1200000, 1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0,
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};
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static const unsigned int LDO13_suspend_table[] = {
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0,
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};
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static const unsigned int LDO14_table[] = {
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1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000,
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};
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static const unsigned int LDO14_suspend_table[] = {
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1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000,
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};
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static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)
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{
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struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
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int ret = -EINVAL;
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if (info->vol_table && (index < rdev->desc->n_voltages)) {
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ret = info->vol_table[index];
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if (info->slope_double)
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ret <<= 1;
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}
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return ret;
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}
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static const struct regulator_ops pm8607_regulator_ops = {
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.list_voltage = pm8607_list_voltage,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.is_enabled = regulator_is_enabled_regmap,
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};
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static const struct regulator_ops pm8606_preg_ops = {
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.is_enabled = regulator_is_enabled_regmap,
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};
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#define PM8606_PREG(ereg, ebit) \
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{ \
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.desc = { \
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.name = "PREG", \
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.ops = &pm8606_preg_ops, \
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.type = REGULATOR_CURRENT, \
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.id = PM8606_ID_PREG, \
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.owner = THIS_MODULE, \
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.enable_reg = PM8606_##ereg, \
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.enable_mask = (ebit), \
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.enable_is_inverted = true, \
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}, \
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}
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#define PM8607_DVC(vreg, ureg, ubit, ereg, ebit) \
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{ \
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.desc = { \
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.name = #vreg, \
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.ops = &pm8607_regulator_ops, \
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.type = REGULATOR_VOLTAGE, \
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.id = PM8607_ID_##vreg, \
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.owner = THIS_MODULE, \
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.n_voltages = ARRAY_SIZE(vreg##_table), \
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.vsel_reg = PM8607_##vreg, \
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.vsel_mask = ARRAY_SIZE(vreg##_table) - 1, \
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.apply_reg = PM8607_##ureg, \
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.apply_bit = (ubit), \
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.enable_reg = PM8607_##ereg, \
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.enable_mask = 1 << (ebit), \
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}, \
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.slope_double = (0), \
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.vol_table = (unsigned int *)&vreg##_table, \
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.vol_suspend = (unsigned int *)&vreg##_suspend_table, \
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}
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#define PM8607_LDO(_id, vreg, shift, ereg, ebit) \
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{ \
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.desc = { \
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.name = "LDO" #_id, \
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.ops = &pm8607_regulator_ops, \
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.type = REGULATOR_VOLTAGE, \
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.id = PM8607_ID_LDO##_id, \
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.owner = THIS_MODULE, \
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.n_voltages = ARRAY_SIZE(LDO##_id##_table), \
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.vsel_reg = PM8607_##vreg, \
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.vsel_mask = (ARRAY_SIZE(LDO##_id##_table) - 1) << (shift), \
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.enable_reg = PM8607_##ereg, \
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.enable_mask = 1 << (ebit), \
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}, \
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.slope_double = (0), \
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.vol_table = (unsigned int *)&LDO##_id##_table, \
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.vol_suspend = (unsigned int *)&LDO##_id##_suspend_table, \
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}
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static struct pm8607_regulator_info pm8607_regulator_info[] = {
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PM8607_DVC(BUCK1, GO, BIT(0), SUPPLIES_EN11, 0),
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PM8607_DVC(BUCK2, GO, BIT(1), SUPPLIES_EN11, 1),
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PM8607_DVC(BUCK3, GO, BIT(2), SUPPLIES_EN11, 2),
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PM8607_LDO(1, LDO1, 0, SUPPLIES_EN11, 3),
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PM8607_LDO(2, LDO2, 0, SUPPLIES_EN11, 4),
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PM8607_LDO(3, LDO3, 0, SUPPLIES_EN11, 5),
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PM8607_LDO(4, LDO4, 0, SUPPLIES_EN11, 6),
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PM8607_LDO(5, LDO5, 0, SUPPLIES_EN11, 7),
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PM8607_LDO(6, LDO6, 0, SUPPLIES_EN12, 0),
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PM8607_LDO(7, LDO7, 0, SUPPLIES_EN12, 1),
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PM8607_LDO(8, LDO8, 0, SUPPLIES_EN12, 2),
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PM8607_LDO(9, LDO9, 0, SUPPLIES_EN12, 3),
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PM8607_LDO(10, LDO10, 0, SUPPLIES_EN12, 4),
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PM8607_LDO(12, LDO12, 0, SUPPLIES_EN12, 5),
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PM8607_LDO(13, VIBRATOR_SET, 1, VIBRATOR_SET, 0),
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PM8607_LDO(14, LDO14, 0, SUPPLIES_EN12, 6),
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};
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static struct pm8607_regulator_info pm8606_regulator_info[] = {
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|
PM8606_PREG(PREREGULATORB, 5),
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifdef CONFIG_OF
|
||
|
|
static int pm8607_regulator_dt_init(struct platform_device *pdev,
|
||
|
|
struct pm8607_regulator_info *info,
|
||
|
|
struct regulator_config *config)
|
||
|
|
{
|
||
|
|
struct device_node *nproot, *np;
|
||
|
|
nproot = pdev->dev.parent->of_node;
|
||
|
|
if (!nproot)
|
||
|
|
return -ENODEV;
|
||
|
|
nproot = of_get_child_by_name(nproot, "regulators");
|
||
|
|
if (!nproot) {
|
||
|
|
dev_err(&pdev->dev, "failed to find regulators node\n");
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
for_each_child_of_node(nproot, np) {
|
||
|
|
if (!of_node_cmp(np->name, info->desc.name)) {
|
||
|
|
config->init_data =
|
||
|
|
of_get_regulator_init_data(&pdev->dev, np,
|
||
|
|
&info->desc);
|
||
|
|
config->of_node = np;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
of_node_put(nproot);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
#define pm8607_regulator_dt_init(x, y, z) (-1)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static int pm8607_regulator_probe(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
|
||
|
|
struct pm8607_regulator_info *info = NULL;
|
||
|
|
struct regulator_init_data *pdata = dev_get_platdata(&pdev->dev);
|
||
|
|
struct regulator_config config = { };
|
||
|
|
struct resource *res;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
res = platform_get_resource(pdev, IORESOURCE_REG, 0);
|
||
|
|
if (res) {
|
||
|
|
/* There're resources in 88PM8607 regulator driver */
|
||
|
|
for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
|
||
|
|
info = &pm8607_regulator_info[i];
|
||
|
|
if (info->desc.vsel_reg == res->start)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (i == ARRAY_SIZE(pm8607_regulator_info)) {
|
||
|
|
dev_err(&pdev->dev, "Failed to find regulator %llu\n",
|
||
|
|
(unsigned long long)res->start);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
/* There's no resource in 88PM8606 PREG regulator driver */
|
||
|
|
info = &pm8606_regulator_info[0];
|
||
|
|
/* i is used to check regulator ID */
|
||
|
|
i = -1;
|
||
|
|
}
|
||
|
|
info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
|
||
|
|
info->i2c_8606 = (chip->id == CHIP_PM8607) ? chip->companion :
|
||
|
|
chip->client;
|
||
|
|
info->chip = chip;
|
||
|
|
|
||
|
|
/* check DVC ramp slope double */
|
||
|
|
if ((i == PM8607_ID_BUCK3) && info->chip->buck3_double)
|
||
|
|
info->slope_double = 1;
|
||
|
|
|
||
|
|
config.dev = &pdev->dev;
|
||
|
|
config.driver_data = info;
|
||
|
|
|
||
|
|
if (pm8607_regulator_dt_init(pdev, info, &config))
|
||
|
|
if (pdata)
|
||
|
|
config.init_data = pdata;
|
||
|
|
|
||
|
|
if (chip->id == CHIP_PM8607)
|
||
|
|
config.regmap = chip->regmap;
|
||
|
|
else
|
||
|
|
config.regmap = chip->regmap_companion;
|
||
|
|
|
||
|
|
info->regulator = devm_regulator_register(&pdev->dev, &info->desc,
|
||
|
|
&config);
|
||
|
|
if (IS_ERR(info->regulator)) {
|
||
|
|
dev_err(&pdev->dev, "failed to register regulator %s\n",
|
||
|
|
info->desc.name);
|
||
|
|
return PTR_ERR(info->regulator);
|
||
|
|
}
|
||
|
|
|
||
|
|
platform_set_drvdata(pdev, info);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct platform_device_id pm8607_regulator_driver_ids[] = {
|
||
|
|
{
|
||
|
|
.name = "88pm860x-regulator",
|
||
|
|
.driver_data = 0,
|
||
|
|
}, {
|
||
|
|
.name = "88pm860x-preg",
|
||
|
|
.driver_data = 0,
|
||
|
|
},
|
||
|
|
{ },
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(platform, pm8607_regulator_driver_ids);
|
||
|
|
|
||
|
|
static struct platform_driver pm8607_regulator_driver = {
|
||
|
|
.driver = {
|
||
|
|
.name = "88pm860x-regulator",
|
||
|
|
},
|
||
|
|
.probe = pm8607_regulator_probe,
|
||
|
|
.id_table = pm8607_regulator_driver_ids,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init pm8607_regulator_init(void)
|
||
|
|
{
|
||
|
|
return platform_driver_register(&pm8607_regulator_driver);
|
||
|
|
}
|
||
|
|
subsys_initcall(pm8607_regulator_init);
|
||
|
|
|
||
|
|
static void __exit pm8607_regulator_exit(void)
|
||
|
|
{
|
||
|
|
platform_driver_unregister(&pm8607_regulator_driver);
|
||
|
|
}
|
||
|
|
module_exit(pm8607_regulator_exit);
|
||
|
|
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
|
||
|
|
MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC");
|
||
|
|
MODULE_ALIAS("platform:88pm8607-regulator");
|