// SPDX-License-Identifier: GPL-2.0-only /* * Regulators driver for Marvell 88PM800 * * Copyright (C) 2012 Marvell International Ltd. * Joseph(Yossi) Hanin <[email protected]> * Yi Zhang <[email protected]> */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/err.h> #include <linux/regmap.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/mfd/88pm80x.h> #include <linux/delay.h> #include <linux/io.h> #include <linux/of.h> #include <linux/regulator/of_regulator.h> /* LDO1 with DVC[0..3] */ #define PM800_LDO1_VOUT … #define PM800_LDO1_VOUT_2 … #define PM800_LDO1_VOUT_3 … #define PM800_LDO2_VOUT … #define PM800_LDO3_VOUT … #define PM800_LDO4_VOUT … #define PM800_LDO5_VOUT … #define PM800_LDO6_VOUT … #define PM800_LDO7_VOUT … #define PM800_LDO8_VOUT … #define PM800_LDO9_VOUT … #define PM800_LDO10_VOUT … #define PM800_LDO11_VOUT … #define PM800_LDO12_VOUT … #define PM800_LDO13_VOUT … #define PM800_LDO14_VOUT … #define PM800_LDO15_VOUT … #define PM800_LDO16_VOUT … #define PM800_LDO17_VOUT … #define PM800_LDO18_VOUT … #define PM800_LDO19_VOUT … /* BUCK1 with DVC[0..3] */ #define PM800_BUCK1 … #define PM800_BUCK1_1 … #define PM800_BUCK1_2 … #define PM800_BUCK1_3 … #define PM800_BUCK2 … #define PM800_BUCK3 … #define PM800_BUCK4 … #define PM800_BUCK4_1 … #define PM800_BUCK4_2 … #define PM800_BUCK4_3 … #define PM800_BUCK5 … #define PM800_BUCK_ENA … #define PM800_LDO_ENA1_1 … #define PM800_LDO_ENA1_2 … #define PM800_LDO_ENA1_3 … #define PM800_LDO_ENA2_1 … #define PM800_LDO_ENA2_2 … #define PM800_LDO_ENA2_3 … #define PM800_BUCK1_MISC1 … #define PM800_BUCK3_MISC1 … #define PM800_BUCK4_MISC1 … #define PM800_BUCK5_MISC1 … struct pm800_regulator_info { … }; /* * vreg - the buck regs string. * ereg - the string for the enable register. * ebit - the bit number in the enable register. * amax - the current * Buck has 2 kinds of voltage steps. It is easy to find voltage by ranges, * not the constant voltage table. * n_volt - Number of available selectors */ #define PM800_BUCK(match, vreg, ereg, ebit, amax, volt_ranges, n_volt) … /* * vreg - the LDO regs string * ereg - the string for the enable register. * ebit - the bit number in the enable register. * amax - the current * volt_table - the LDO voltage table * For all the LDOes, there are too many ranges. Using volt_table will be * simpler and faster. */ #define PM800_LDO(match, vreg, ereg, ebit, amax, ldo_volt_table) … /* Ranges are sorted in ascending order. */ static const struct linear_range buck1_volt_range[] = …; /* BUCK 2~5 have same ranges. */ static const struct linear_range buck2_5_volt_range[] = …; static const unsigned int ldo1_volt_table[] = …; static const unsigned int ldo2_volt_table[] = …; /* LDO 3~17 have same voltage table. */ static const unsigned int ldo3_17_volt_table[] = …; /* LDO 18~19 have same voltage table. */ static const unsigned int ldo18_19_volt_table[] = …; static int pm800_get_current_limit(struct regulator_dev *rdev) { … } static const struct regulator_ops pm800_volt_range_ops = …; static const struct regulator_ops pm800_volt_table_ops = …; /* The array is indexed by id(PM800_ID_XXX) */ static struct pm800_regulator_info pm800_regulator_info[] = …; static int pm800_regulator_probe(struct platform_device *pdev) { … } static struct platform_driver pm800_regulator_driver = …; module_platform_driver(…) …; MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_ALIAS(…) …;
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