// SPDX-License-Identifier: GPL-2.0+ // // max77802.c - Regulator driver for the Maxim 77802 // // Copyright (C) 2013-2014 Google, Inc // Simon Glass <[email protected]> // // Copyright (C) 2012 Samsung Electronics // Chiwoong Byun <[email protected]> // Jonghwa Lee <[email protected]> // // This driver is based on max8997.c #include <linux/kernel.h> #include <linux/bug.h> #include <linux/err.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/regulator/of_regulator.h> #include <linux/mfd/max77686.h> #include <linux/mfd/max77686-private.h> #include <dt-bindings/regulator/maxim,max77802.h> /* Default ramp delay in case it is not manually set */ #define MAX77802_RAMP_DELAY … #define MAX77802_OPMODE_SHIFT_LDO … #define MAX77802_OPMODE_BUCK234_SHIFT … #define MAX77802_OPMODE_MASK … #define MAX77802_VSEL_MASK … #define MAX77802_DVS_VSEL_MASK … #define MAX77802_RAMP_RATE_MASK_2BIT … #define MAX77802_RAMP_RATE_SHIFT_2BIT … #define MAX77802_RAMP_RATE_MASK_4BIT … #define MAX77802_RAMP_RATE_SHIFT_4BIT … #define MAX77802_STATUS_OFF … #define MAX77802_OFF_PWRREQ … #define MAX77802_LP_PWRREQ … static const unsigned int max77802_buck234_ramp_table[] = …; static const unsigned int max77802_buck16_ramp_table[] = …; struct max77802_regulator_prv { … }; static inline unsigned int max77802_map_mode(unsigned int mode) { … } static int max77802_get_opmode_shift(int id) { … } /** * max77802_set_suspend_disable - Disable the regulator during system suspend * @rdev: regulator to mark as disabled * * All regulators expect LDO 1, 3, 20 and 21 support OFF by PWRREQ. * Configure the regulator so the PMIC will turn it OFF during system suspend. */ static int max77802_set_suspend_disable(struct regulator_dev *rdev) { … } /* * Some LDOs support Low Power Mode while the system is running. * * LDOs 1, 3, 20, 21. */ static int max77802_set_mode(struct regulator_dev *rdev, unsigned int mode) { … } static unsigned max77802_get_mode(struct regulator_dev *rdev) { … } /** * max77802_set_suspend_mode - set regulator opmode when the system is suspended * @rdev: regulator to change mode * @mode: operating mode to be set * * Will set the operating mode for the regulators during system suspend. * This function is valid for the three different enable control logics: * * Enable Control Logic1 by PWRREQ (BUCK 2-4 and LDOs 2, 4-19, 22-35) * Enable Control Logic2 by PWRREQ (LDOs 1, 20, 21) * Enable Control Logic3 by PWRREQ (LDO 3) * * If setting the regulator mode fails, the function only warns but does * not return an error code to avoid the regulator core to stop setting * the operating mode for the remaining regulators. */ static int max77802_set_suspend_mode(struct regulator_dev *rdev, unsigned int mode) { … } static int max77802_enable(struct regulator_dev *rdev) { … } /* * LDOs 2, 4-19, 22-35 */ static const struct regulator_ops max77802_ldo_ops_logic1 = …; /* * LDOs 1, 20, 21, 3 */ static const struct regulator_ops max77802_ldo_ops_logic2 = …; /* BUCKS 1, 6 */ static const struct regulator_ops max77802_buck_16_dvs_ops = …; /* BUCKs 2-4 */ static const struct regulator_ops max77802_buck_234_ops = …; /* BUCKs 5, 7-10 */ static const struct regulator_ops max77802_buck_dvs_ops = …; /* LDOs 3-7, 9-14, 18-26, 28, 29, 32-34 */ #define regulator_77802_desc_p_ldo(num, supply, log) … /* LDOs 1, 2, 8, 15, 17, 27, 30, 35 */ #define regulator_77802_desc_n_ldo(num, supply, log) … /* BUCKs 1, 6 */ #define regulator_77802_desc_16_buck(num) … /* BUCKS 2-4 */ #define regulator_77802_desc_234_buck(num) … /* BUCK 5 */ #define regulator_77802_desc_buck5(num) … /* BUCKs 7-10 */ #define regulator_77802_desc_buck7_10(num) … static const struct regulator_desc regulators[] = …; static int max77802_pmic_probe(struct platform_device *pdev) { … } static const struct platform_device_id max77802_pmic_id[] = …; MODULE_DEVICE_TABLE(platform, max77802_pmic_id); static struct platform_driver max77802_pmic_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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