diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/hwmon/pmbus/max8688.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/hwmon/pmbus/max8688.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/ANDROID_3.4.5/drivers/hwmon/pmbus/max8688.c b/ANDROID_3.4.5/drivers/hwmon/pmbus/max8688.c deleted file mode 100644 index f04454a4..00000000 --- a/ANDROID_3.4.5/drivers/hwmon/pmbus/max8688.c +++ /dev/null @@ -1,204 +0,0 @@ -/* - * Hardware monitoring driver for Maxim MAX8688 - * - * Copyright (c) 2011 Ericsson AB. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/err.h> -#include <linux/i2c.h> -#include "pmbus.h" - -#define MAX8688_MFR_VOUT_PEAK 0xd4 -#define MAX8688_MFR_IOUT_PEAK 0xd5 -#define MAX8688_MFR_TEMPERATURE_PEAK 0xd6 -#define MAX8688_MFG_STATUS 0xd8 - -#define MAX8688_STATUS_OC_FAULT (1 << 4) -#define MAX8688_STATUS_OV_FAULT (1 << 5) -#define MAX8688_STATUS_OV_WARNING (1 << 8) -#define MAX8688_STATUS_UV_FAULT (1 << 9) -#define MAX8688_STATUS_UV_WARNING (1 << 10) -#define MAX8688_STATUS_UC_FAULT (1 << 11) -#define MAX8688_STATUS_OC_WARNING (1 << 12) -#define MAX8688_STATUS_OT_FAULT (1 << 13) -#define MAX8688_STATUS_OT_WARNING (1 << 14) - -static int max8688_read_word_data(struct i2c_client *client, int page, int reg) -{ - int ret; - - if (page) - return -ENXIO; - - switch (reg) { - case PMBUS_VIRT_READ_VOUT_MAX: - ret = pmbus_read_word_data(client, 0, MAX8688_MFR_VOUT_PEAK); - break; - case PMBUS_VIRT_READ_IOUT_MAX: - ret = pmbus_read_word_data(client, 0, MAX8688_MFR_IOUT_PEAK); - break; - case PMBUS_VIRT_READ_TEMP_MAX: - ret = pmbus_read_word_data(client, 0, - MAX8688_MFR_TEMPERATURE_PEAK); - break; - case PMBUS_VIRT_RESET_VOUT_HISTORY: - case PMBUS_VIRT_RESET_IOUT_HISTORY: - case PMBUS_VIRT_RESET_TEMP_HISTORY: - ret = 0; - break; - default: - ret = -ENODATA; - break; - } - return ret; -} - -static int max8688_write_word_data(struct i2c_client *client, int page, int reg, - u16 word) -{ - int ret; - - switch (reg) { - case PMBUS_VIRT_RESET_VOUT_HISTORY: - ret = pmbus_write_word_data(client, 0, MAX8688_MFR_VOUT_PEAK, - 0); - break; - case PMBUS_VIRT_RESET_IOUT_HISTORY: - ret = pmbus_write_word_data(client, 0, MAX8688_MFR_IOUT_PEAK, - 0); - break; - case PMBUS_VIRT_RESET_TEMP_HISTORY: - ret = pmbus_write_word_data(client, 0, - MAX8688_MFR_TEMPERATURE_PEAK, - 0xffff); - break; - default: - ret = -ENODATA; - break; - } - return ret; -} - -static int max8688_read_byte_data(struct i2c_client *client, int page, int reg) -{ - int ret = 0; - int mfg_status; - - if (page > 0) - return -ENXIO; - - switch (reg) { - case PMBUS_STATUS_VOUT: - mfg_status = pmbus_read_word_data(client, 0, - MAX8688_MFG_STATUS); - if (mfg_status < 0) - return mfg_status; - if (mfg_status & MAX8688_STATUS_UV_WARNING) - ret |= PB_VOLTAGE_UV_WARNING; - if (mfg_status & MAX8688_STATUS_UV_FAULT) - ret |= PB_VOLTAGE_UV_FAULT; - if (mfg_status & MAX8688_STATUS_OV_WARNING) - ret |= PB_VOLTAGE_OV_WARNING; - if (mfg_status & MAX8688_STATUS_OV_FAULT) - ret |= PB_VOLTAGE_OV_FAULT; - break; - case PMBUS_STATUS_IOUT: - mfg_status = pmbus_read_word_data(client, 0, - MAX8688_MFG_STATUS); - if (mfg_status < 0) - return mfg_status; - if (mfg_status & MAX8688_STATUS_UC_FAULT) - ret |= PB_IOUT_UC_FAULT; - if (mfg_status & MAX8688_STATUS_OC_WARNING) - ret |= PB_IOUT_OC_WARNING; - if (mfg_status & MAX8688_STATUS_OC_FAULT) - ret |= PB_IOUT_OC_FAULT; - break; - case PMBUS_STATUS_TEMPERATURE: - mfg_status = pmbus_read_word_data(client, 0, - MAX8688_MFG_STATUS); - if (mfg_status < 0) - return mfg_status; - if (mfg_status & MAX8688_STATUS_OT_WARNING) - ret |= PB_TEMP_OT_WARNING; - if (mfg_status & MAX8688_STATUS_OT_FAULT) - ret |= PB_TEMP_OT_FAULT; - break; - default: - ret = -ENODATA; - break; - } - return ret; -} - -static struct pmbus_driver_info max8688_info = { - .pages = 1, - .format[PSC_VOLTAGE_IN] = direct, - .format[PSC_VOLTAGE_OUT] = direct, - .format[PSC_TEMPERATURE] = direct, - .format[PSC_CURRENT_OUT] = direct, - .m[PSC_VOLTAGE_IN] = 19995, - .b[PSC_VOLTAGE_IN] = 0, - .R[PSC_VOLTAGE_IN] = -1, - .m[PSC_VOLTAGE_OUT] = 19995, - .b[PSC_VOLTAGE_OUT] = 0, - .R[PSC_VOLTAGE_OUT] = -1, - .m[PSC_CURRENT_OUT] = 23109, - .b[PSC_CURRENT_OUT] = 0, - .R[PSC_CURRENT_OUT] = -2, - .m[PSC_TEMPERATURE] = -7612, - .b[PSC_TEMPERATURE] = 335, - .R[PSC_TEMPERATURE] = -3, - .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_IOUT | PMBUS_HAVE_TEMP - | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_IOUT - | PMBUS_HAVE_STATUS_TEMP, - .read_byte_data = max8688_read_byte_data, - .read_word_data = max8688_read_word_data, - .write_word_data = max8688_write_word_data, -}; - -static int max8688_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - return pmbus_do_probe(client, id, &max8688_info); -} - -static const struct i2c_device_id max8688_id[] = { - {"max8688", 0}, - { } -}; - -MODULE_DEVICE_TABLE(i2c, max8688_id); - -/* This is the driver that will be inserted */ -static struct i2c_driver max8688_driver = { - .driver = { - .name = "max8688", - }, - .probe = max8688_probe, - .remove = pmbus_do_remove, - .id_table = max8688_id, -}; - -module_i2c_driver(max8688_driver); - -MODULE_AUTHOR("Guenter Roeck"); -MODULE_DESCRIPTION("PMBus driver for Maxim MAX8688"); -MODULE_LICENSE("GPL"); |