Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Samuel Mendoza-Jonas | 602 | 95.71% | 2 | 33.33% |
Guenter Roeck | 24 | 3.82% | 2 | 33.33% |
Thomas Gleixner | 2 | 0.32% | 1 | 16.67% |
Stephen Kitt | 1 | 0.16% | 1 | 16.67% |
Total | 629 | 6 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * Hardware monitoring driver for IR35221 * * Copyright (C) IBM Corporation 2017. */ #include <linux/err.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include "pmbus.h" #define IR35221_MFR_VIN_PEAK 0xc5 #define IR35221_MFR_VOUT_PEAK 0xc6 #define IR35221_MFR_IOUT_PEAK 0xc7 #define IR35221_MFR_TEMP_PEAK 0xc8 #define IR35221_MFR_VIN_VALLEY 0xc9 #define IR35221_MFR_VOUT_VALLEY 0xca #define IR35221_MFR_IOUT_VALLEY 0xcb #define IR35221_MFR_TEMP_VALLEY 0xcc static int ir35221_read_word_data(struct i2c_client *client, int page, int phase, int reg) { int ret; switch (reg) { case PMBUS_VIRT_READ_VIN_MAX: ret = pmbus_read_word_data(client, page, phase, IR35221_MFR_VIN_PEAK); break; case PMBUS_VIRT_READ_VOUT_MAX: ret = pmbus_read_word_data(client, page, phase, IR35221_MFR_VOUT_PEAK); break; case PMBUS_VIRT_READ_IOUT_MAX: ret = pmbus_read_word_data(client, page, phase, IR35221_MFR_IOUT_PEAK); break; case PMBUS_VIRT_READ_TEMP_MAX: ret = pmbus_read_word_data(client, page, phase, IR35221_MFR_TEMP_PEAK); break; case PMBUS_VIRT_READ_VIN_MIN: ret = pmbus_read_word_data(client, page, phase, IR35221_MFR_VIN_VALLEY); break; case PMBUS_VIRT_READ_VOUT_MIN: ret = pmbus_read_word_data(client, page, phase, IR35221_MFR_VOUT_VALLEY); break; case PMBUS_VIRT_READ_IOUT_MIN: ret = pmbus_read_word_data(client, page, phase, IR35221_MFR_IOUT_VALLEY); break; case PMBUS_VIRT_READ_TEMP_MIN: ret = pmbus_read_word_data(client, page, phase, IR35221_MFR_TEMP_VALLEY); break; default: ret = -ENODATA; break; } return ret; } static int ir35221_probe(struct i2c_client *client) { struct pmbus_driver_info *info; u8 buf[I2C_SMBUS_BLOCK_MAX]; int ret; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA | I2C_FUNC_SMBUS_READ_WORD_DATA | I2C_FUNC_SMBUS_READ_BLOCK_DATA)) return -ENODEV; ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, buf); if (ret < 0) { dev_err(&client->dev, "Failed to read PMBUS_MFR_ID\n"); return ret; } if (ret != 2 || strncmp(buf, "RI", strlen("RI"))) { dev_err(&client->dev, "MFR_ID unrecognised\n"); return -ENODEV; } ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, buf); if (ret < 0) { dev_err(&client->dev, "Failed to read PMBUS_MFR_MODEL\n"); return ret; } if (ret != 2 || !(buf[0] == 0x6c && buf[1] == 0x00)) { dev_err(&client->dev, "MFR_MODEL unrecognised\n"); return -ENODEV; } info = devm_kzalloc(&client->dev, sizeof(struct pmbus_driver_info), GFP_KERNEL); if (!info) return -ENOMEM; info->read_word_data = ir35221_read_word_data; info->pages = 2; info->format[PSC_VOLTAGE_IN] = linear; info->format[PSC_VOLTAGE_OUT] = linear; info->format[PSC_CURRENT_IN] = linear; info->format[PSC_CURRENT_OUT] = linear; info->format[PSC_POWER] = linear; info->format[PSC_TEMPERATURE] = linear; info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT | PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP; info->func[1] = info->func[0]; return pmbus_do_probe(client, info); } static const struct i2c_device_id ir35221_id[] = { {"ir35221", 0}, {} }; MODULE_DEVICE_TABLE(i2c, ir35221_id); static struct i2c_driver ir35221_driver = { .driver = { .name = "ir35221", }, .probe_new = ir35221_probe, .id_table = ir35221_id, }; module_i2c_driver(ir35221_driver); MODULE_AUTHOR("Samuel Mendoza-Jonas <sam@mendozajonas.com"); MODULE_DESCRIPTION("PMBus driver for IR35221"); MODULE_LICENSE("GPL"); MODULE_IMPORT_NS(PMBUS);
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1