| 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
|---|
| 2 | /* |
|---|
| 3 | * Hardware monitoring driver for Infineon Multi-phase Digital VR Controllers |
|---|
| 4 | * |
|---|
| 5 | * Copyright (c) 2022 Infineon Technologies. All rights reserved. |
|---|
| 6 | */ |
|---|
| 7 | |
|---|
| 8 | #include <linux/err.h> |
|---|
| 9 | #include <linux/i2c.h> |
|---|
| 10 | #include <linux/init.h> |
|---|
| 11 | #include <linux/kernel.h> |
|---|
| 12 | #include <linux/module.h> |
|---|
| 13 | #include "pmbus.h" |
|---|
| 14 | |
|---|
| 15 | #define XDPE152_PAGE_NUM 2 |
|---|
| 16 | |
|---|
| 17 | static struct pmbus_driver_info xdpe152_info = { |
|---|
| 18 | .pages = XDPE152_PAGE_NUM, |
|---|
| 19 | .format[PSC_VOLTAGE_IN] = linear, |
|---|
| 20 | .format[PSC_VOLTAGE_OUT] = linear, |
|---|
| 21 | .format[PSC_TEMPERATURE] = linear, |
|---|
| 22 | .format[PSC_CURRENT_IN] = linear, |
|---|
| 23 | .format[PSC_CURRENT_OUT] = linear, |
|---|
| 24 | .format[PSC_POWER] = linear, |
|---|
| 25 | .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
|---|
| 26 | PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | |
|---|
| 27 | PMBUS_HAVE_TEMP | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP | |
|---|
| 28 | PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT, |
|---|
| 29 | .func[1] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | |
|---|
| 30 | PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | |
|---|
| 31 | PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT, |
|---|
| 32 | }; |
|---|
| 33 | |
|---|
| 34 | static int xdpe152_probe(struct i2c_client *client) |
|---|
| 35 | { |
|---|
| 36 | struct pmbus_driver_info *info; |
|---|
| 37 | |
|---|
| 38 | info = devm_kmemdup(dev: &client->dev, src: &xdpe152_info, len: sizeof(*info), |
|---|
| 39 | GFP_KERNEL); |
|---|
| 40 | if (!info) |
|---|
| 41 | return -ENOMEM; |
|---|
| 42 | |
|---|
| 43 | return pmbus_do_probe(client, info); |
|---|
| 44 | } |
|---|
| 45 | |
|---|
| 46 | static const struct i2c_device_id xdpe152_id[] = { |
|---|
| 47 | {"xdpe152c4" , 0}, |
|---|
| 48 | {"xdpe15284" , 0}, |
|---|
| 49 | {} |
|---|
| 50 | }; |
|---|
| 51 | |
|---|
| 52 | MODULE_DEVICE_TABLE(i2c, xdpe152_id); |
|---|
| 53 | |
|---|
| 54 | static const struct of_device_id __maybe_unused xdpe152_of_match[] = { |
|---|
| 55 | {.compatible = "infineon,xdpe152c4" }, |
|---|
| 56 | {.compatible = "infineon,xdpe15284" }, |
|---|
| 57 | {} |
|---|
| 58 | }; |
|---|
| 59 | MODULE_DEVICE_TABLE(of, xdpe152_of_match); |
|---|
| 60 | |
|---|
| 61 | static struct i2c_driver xdpe152_driver = { |
|---|
| 62 | .driver = { |
|---|
| 63 | .name = "xdpe152c4" , |
|---|
| 64 | .of_match_table = of_match_ptr(xdpe152_of_match), |
|---|
| 65 | }, |
|---|
| 66 | .probe = xdpe152_probe, |
|---|
| 67 | .id_table = xdpe152_id, |
|---|
| 68 | }; |
|---|
| 69 | |
|---|
| 70 | module_i2c_driver(xdpe152_driver); |
|---|
| 71 | |
|---|
| 72 | MODULE_AUTHOR("Greg Schwendimann <greg.schwendimann@infineon.com>" ); |
|---|
| 73 | MODULE_DESCRIPTION("PMBus driver for Infineon XDPE152 family" ); |
|---|
| 74 | MODULE_LICENSE("GPL" ); |
|---|
| 75 | MODULE_IMPORT_NS(PMBUS); |
|---|
| 76 | |
|---|
