| 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
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| 2 | /* |
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| 3 | * Driver for MPS MP5023 Hot-Swap Controller |
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| 4 | */ |
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| 5 | |
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| 6 | #include <linux/i2c.h> |
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| 7 | #include <linux/module.h> |
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| 8 | #include <linux/of.h> |
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| 9 | #include "pmbus.h" |
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| 10 | |
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| 11 | static struct pmbus_driver_info mp5023_info = { |
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| 12 | .pages = 1, |
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| 13 | |
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| 14 | .format[PSC_VOLTAGE_IN] = direct, |
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| 15 | .format[PSC_VOLTAGE_OUT] = direct, |
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| 16 | .format[PSC_CURRENT_OUT] = direct, |
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| 17 | .format[PSC_POWER] = direct, |
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| 18 | .format[PSC_TEMPERATURE] = direct, |
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| 19 | |
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| 20 | .m[PSC_VOLTAGE_IN] = 32, |
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| 21 | .b[PSC_VOLTAGE_IN] = 0, |
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| 22 | .R[PSC_VOLTAGE_IN] = 0, |
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| 23 | .m[PSC_VOLTAGE_OUT] = 32, |
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| 24 | .b[PSC_VOLTAGE_OUT] = 0, |
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| 25 | .R[PSC_VOLTAGE_OUT] = 0, |
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| 26 | .m[PSC_CURRENT_OUT] = 16, |
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| 27 | .b[PSC_CURRENT_OUT] = 0, |
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| 28 | .R[PSC_CURRENT_OUT] = 0, |
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| 29 | .m[PSC_POWER] = 1, |
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| 30 | .b[PSC_POWER] = 0, |
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| 31 | .R[PSC_POWER] = 0, |
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| 32 | .m[PSC_TEMPERATURE] = 2, |
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| 33 | .b[PSC_TEMPERATURE] = 0, |
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| 34 | .R[PSC_TEMPERATURE] = 0, |
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| 35 | |
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| 36 | .func[0] = |
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| 37 | PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_PIN | |
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| 38 | PMBUS_HAVE_TEMP | PMBUS_HAVE_IOUT | |
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| 39 | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP, |
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| 40 | }; |
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| 41 | |
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| 42 | static int mp5023_probe(struct i2c_client *client) |
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| 43 | { |
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| 44 | return pmbus_do_probe(client, info: &mp5023_info); |
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| 45 | } |
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| 46 | |
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| 47 | static const struct of_device_id __maybe_unused mp5023_of_match[] = { |
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| 48 | { .compatible = "mps,mp5023" , }, |
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| 49 | {} |
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| 50 | }; |
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| 51 | |
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| 52 | MODULE_DEVICE_TABLE(of, mp5023_of_match); |
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| 53 | |
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| 54 | static struct i2c_driver mp5023_driver = { |
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| 55 | .driver = { |
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| 56 | .name = "mp5023" , |
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| 57 | .of_match_table = of_match_ptr(mp5023_of_match), |
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| 58 | }, |
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| 59 | .probe = mp5023_probe, |
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| 60 | }; |
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| 61 | |
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| 62 | module_i2c_driver(mp5023_driver); |
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| 63 | |
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| 64 | MODULE_AUTHOR("Howard Chiu <howard.chiu@quantatw.com>" ); |
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| 65 | MODULE_DESCRIPTION("PMBus driver for MPS MP5023 HSC" ); |
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| 66 | MODULE_LICENSE("GPL" ); |
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| 67 | MODULE_IMPORT_NS(PMBUS); |
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| 68 | |
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