1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Hardware monitoring driver for the Infineon IRPS5401M PMIC. 4 * 5 * Copyright (c) 2019 SED Systems, a division of Calian Ltd. 6 * 7 * The device supports VOUT_PEAK, IOUT_PEAK, and TEMPERATURE_PEAK, however 8 * this driver does not currently support them. 9 */ 10 11 #include <linux/err.h> 12 #include <linux/i2c.h> 13 #include <linux/init.h> 14 #include <linux/kernel.h> 15 #include <linux/module.h> 16 #include "pmbus.h" 17 18 #define IRPS5401_SW_FUNC (PMBUS_HAVE_VIN | PMBUS_HAVE_IIN | \ 19 PMBUS_HAVE_STATUS_INPUT | \ 20 PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | \ 21 PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | \ 22 PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | \ 23 PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP) 24 25 #define IRPS5401_LDO_FUNC (PMBUS_HAVE_VIN | \ 26 PMBUS_HAVE_STATUS_INPUT | \ 27 PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | \ 28 PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | \ 29 PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | \ 30 PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP) 31 32 static struct pmbus_driver_info irps5401_info = { 33 .pages = 5, 34 .func[0] = IRPS5401_SW_FUNC, 35 .func[1] = IRPS5401_SW_FUNC, 36 .func[2] = IRPS5401_SW_FUNC, 37 .func[3] = IRPS5401_SW_FUNC, 38 .func[4] = IRPS5401_LDO_FUNC, 39 }; 40 41 static int irps5401_probe(struct i2c_client *client) 42 { 43 return pmbus_do_probe(client, &irps5401_info); 44 } 45 46 static const struct i2c_device_id irps5401_id[] = { 47 {"irps5401", 0}, 48 {} 49 }; 50 51 MODULE_DEVICE_TABLE(i2c, irps5401_id); 52 53 static struct i2c_driver irps5401_driver = { 54 .driver = { 55 .name = "irps5401", 56 }, 57 .probe_new = irps5401_probe, 58 .id_table = irps5401_id, 59 }; 60 61 module_i2c_driver(irps5401_driver); 62 63 MODULE_AUTHOR("Robert Hancock"); 64 MODULE_DESCRIPTION("PMBus driver for Infineon IRPS5401"); 65 MODULE_LICENSE("GPL"); 66 MODULE_IMPORT_NS(PMBUS); 67