1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Hardware monitoring driver for STMicroelectronics digital controller stef48h28 4 */ 5 6 #include <linux/err.h> 7 #include <linux/i2c.h> 8 #include <linux/mod_devicetable.h> 9 #include <linux/module.h> 10 11 #include "pmbus.h" 12 13 static struct pmbus_driver_info stef48h28_info = { 14 .pages = 1, 15 .format[PSC_VOLTAGE_IN] = direct, 16 .format[PSC_VOLTAGE_OUT] = direct, 17 .format[PSC_CURRENT_IN] = direct, 18 .format[PSC_CURRENT_OUT] = direct, 19 .format[PSC_POWER] = direct, 20 .format[PSC_TEMPERATURE] = direct, 21 .m[PSC_VOLTAGE_IN] = 50, 22 .b[PSC_VOLTAGE_IN] = 0, 23 .R[PSC_VOLTAGE_IN] = 0, 24 .m[PSC_VOLTAGE_OUT] = 50, 25 .b[PSC_VOLTAGE_OUT] = 0, 26 .R[PSC_VOLTAGE_OUT] = 0, 27 .m[PSC_CURRENT_IN] = 100, 28 .b[PSC_CURRENT_IN] = 0, 29 .R[PSC_CURRENT_IN] = 0, 30 .m[PSC_CURRENT_OUT] = 100, 31 .b[PSC_CURRENT_OUT] = 0, 32 .R[PSC_CURRENT_OUT] = 0, 33 .m[PSC_POWER] = 9765, 34 .b[PSC_POWER] = 0, 35 .R[PSC_POWER] = -3, 36 .m[PSC_TEMPERATURE] = 25, 37 .b[PSC_TEMPERATURE] = 500, 38 .R[PSC_TEMPERATURE] = 0, 39 .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN | PMBUS_HAVE_PIN 40 | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 41 | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT 42 | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT 43 }; 44 45 static int stef48h28_probe(struct i2c_client *client) 46 { 47 return pmbus_do_probe(client, &stef48h28_info); 48 } 49 50 static const struct i2c_device_id stef48h28_id[] = { 51 {"stef48h28"}, 52 {} 53 }; 54 MODULE_DEVICE_TABLE(i2c, stef48h28_id); 55 56 static const struct of_device_id __maybe_unused stef48h28_of_match[] = { 57 {.compatible = "st,stef48h28"}, 58 {} 59 }; 60 61 static struct i2c_driver stef48h28_driver = { 62 .driver = { 63 .name = "stef48h28", 64 .of_match_table = of_match_ptr(stef48h28_of_match), 65 }, 66 .probe = stef48h28_probe, 67 .id_table = stef48h28_id, 68 }; 69 70 module_i2c_driver(stef48h28_driver); 71 72 MODULE_AUTHOR("Charles Hsu <hsu.yungteng@gmail.com>"); 73 MODULE_DESCRIPTION("PMBus driver for ST stef48h28"); 74 MODULE_LICENSE("GPL"); 75 MODULE_IMPORT_NS("PMBUS"); 76