// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for MAX20710, MAX20730, MAX20734, and MAX20743 Integrated, * Step-Down Switching Regulators * * Copyright 2019 Google LLC. * Copyright 2020 Maxim Integrated */ #include <linux/bits.h> #include <linux/debugfs.h> #include <linux/err.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/of.h> #include <linux/pmbus.h> #include <linux/util_macros.h> #include "pmbus.h" enum chips { … }; enum { … }; struct max20730_data { … }; #define to_max20730_data(x) … #define VOLT_FROM_REG(val) … #define PMBUS_SMB_ALERT_MASK … #define MAX20730_MFR_VOUT_MIN … #define MAX20730_MFR_DEVSET1 … #define MAX20730_MFR_DEVSET2 … #define MAX20730_MFR_VOUT_MIN_MASK … #define MAX20730_MFR_VOUT_MIN_BIT_POS … #define MAX20730_MFR_DEVSET1_RGAIN_MASK … #define MAX20730_MFR_DEVSET1_OTP_MASK … #define MAX20730_MFR_DEVSET1_VBOOT_MASK … #define MAX20730_MFR_DEVSET1_OCP_MASK … #define MAX20730_MFR_DEVSET1_FSW_MASK … #define MAX20730_MFR_DEVSET1_TSTAT_MASK … #define MAX20730_MFR_DEVSET1_RGAIN_BIT_POS … #define MAX20730_MFR_DEVSET1_OTP_BIT_POS … #define MAX20730_MFR_DEVSET1_VBOOT_BIT_POS … #define MAX20730_MFR_DEVSET1_OCP_BIT_POS … #define MAX20730_MFR_DEVSET1_FSW_BIT_POS … #define MAX20730_MFR_DEVSET1_TSTAT_BIT_POS … #define MAX20730_MFR_DEVSET2_IMAX_MASK … #define MAX20730_MFR_DEVSET2_VRATE … #define MAX20730_MFR_DEVSET2_OCPM_MASK … #define MAX20730_MFR_DEVSET2_SS_MASK … #define MAX20730_MFR_DEVSET2_IMAX_BIT_POS … #define MAX20730_MFR_DEVSET2_VRATE_BIT_POS … #define MAX20730_MFR_DEVSET2_OCPM_BIT_POS … #define MAX20730_MFR_DEVSET2_SS_BIT_POS … #define DEBUG_FS_DATA_MAX … struct max20730_debugfs_data { … }; #define to_psu(x, y) … #ifdef CONFIG_DEBUG_FS static ssize_t max20730_debugfs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { … } static const struct file_operations max20730_fops = …; static int max20730_init_debugfs(struct i2c_client *client, struct max20730_data *data) { … } #else static int max20730_init_debugfs(struct i2c_client *client, struct max20730_data *data) { return 0; } #endif /* CONFIG_DEBUG_FS */ static const struct i2c_device_id max20730_id[]; /* * Convert discreet value to direct data format. Strictly speaking, all passed * values are constants, so we could do that calculation manually. On the * downside, that would make the driver more difficult to maintain, so lets * use this approach. */ static u16 val_to_direct(int v, enum pmbus_sensor_classes class, const struct pmbus_driver_info *info) { … } static long direct_to_val(u16 w, enum pmbus_sensor_classes class, const struct pmbus_driver_info *info) { … } static u32 max_current[][5] = …; static int max20730_read_word_data(struct i2c_client *client, int page, int phase, int reg) { … } static int max20730_write_word_data(struct i2c_client *client, int page, int reg, u16 word) { … } static const struct pmbus_driver_info max20730_info[] = …; static int max20730_probe(struct i2c_client *client) { … } static const struct i2c_device_id max20730_id[] = …; MODULE_DEVICE_TABLE(i2c, max20730_id); static const struct of_device_id max20730_of_match[] = …; MODULE_DEVICE_TABLE(of, max20730_of_match); static struct i2c_driver max20730_driver = …; module_i2c_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_IMPORT_NS(…);
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