533 строки
16 KiB
C
533 строки
16 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Hardware monitoring driver for Maxim MAX34440/MAX34441
|
|
*
|
|
* Copyright (c) 2011 Ericsson AB.
|
|
* Copyright (c) 2012 Guenter Roeck
|
|
*/
|
|
|
|
#include <linux/bitops.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/err.h>
|
|
#include <linux/i2c.h>
|
|
#include "pmbus.h"
|
|
|
|
enum chips { max34440, max34441, max34446, max34451, max34460, max34461 };
|
|
|
|
#define MAX34440_MFR_VOUT_PEAK 0xd4
|
|
#define MAX34440_MFR_IOUT_PEAK 0xd5
|
|
#define MAX34440_MFR_TEMPERATURE_PEAK 0xd6
|
|
#define MAX34440_MFR_VOUT_MIN 0xd7
|
|
|
|
#define MAX34446_MFR_POUT_PEAK 0xe0
|
|
#define MAX34446_MFR_POUT_AVG 0xe1
|
|
#define MAX34446_MFR_IOUT_AVG 0xe2
|
|
#define MAX34446_MFR_TEMPERATURE_AVG 0xe3
|
|
|
|
#define MAX34440_STATUS_OC_WARN BIT(0)
|
|
#define MAX34440_STATUS_OC_FAULT BIT(1)
|
|
#define MAX34440_STATUS_OT_FAULT BIT(5)
|
|
#define MAX34440_STATUS_OT_WARN BIT(6)
|
|
|
|
/*
|
|
* The whole max344* family have IOUT_OC_WARN_LIMIT and IOUT_OC_FAULT_LIMIT
|
|
* swapped from the standard pmbus spec addresses.
|
|
*/
|
|
#define MAX34440_IOUT_OC_WARN_LIMIT 0x46
|
|
#define MAX34440_IOUT_OC_FAULT_LIMIT 0x4A
|
|
|
|
#define MAX34451_MFR_CHANNEL_CONFIG 0xe4
|
|
#define MAX34451_MFR_CHANNEL_CONFIG_SEL_MASK 0x3f
|
|
|
|
struct max34440_data {
|
|
int id;
|
|
struct pmbus_driver_info info;
|
|
};
|
|
|
|
#define to_max34440_data(x) container_of(x, struct max34440_data, info)
|
|
|
|
static const struct i2c_device_id max34440_id[];
|
|
|
|
static int max34440_read_word_data(struct i2c_client *client, int page,
|
|
int phase, int reg)
|
|
{
|
|
int ret;
|
|
const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
|
|
const struct max34440_data *data = to_max34440_data(info);
|
|
|
|
switch (reg) {
|
|
case PMBUS_IOUT_OC_FAULT_LIMIT:
|
|
ret = pmbus_read_word_data(client, page, phase,
|
|
MAX34440_IOUT_OC_FAULT_LIMIT);
|
|
break;
|
|
case PMBUS_IOUT_OC_WARN_LIMIT:
|
|
ret = pmbus_read_word_data(client, page, phase,
|
|
MAX34440_IOUT_OC_WARN_LIMIT);
|
|
break;
|
|
case PMBUS_VIRT_READ_VOUT_MIN:
|
|
ret = pmbus_read_word_data(client, page, phase,
|
|
MAX34440_MFR_VOUT_MIN);
|
|
break;
|
|
case PMBUS_VIRT_READ_VOUT_MAX:
|
|
ret = pmbus_read_word_data(client, page, phase,
|
|
MAX34440_MFR_VOUT_PEAK);
|
|
break;
|
|
case PMBUS_VIRT_READ_IOUT_AVG:
|
|
if (data->id != max34446 && data->id != max34451)
|
|
return -ENXIO;
|
|
ret = pmbus_read_word_data(client, page, phase,
|
|
MAX34446_MFR_IOUT_AVG);
|
|
break;
|
|
case PMBUS_VIRT_READ_IOUT_MAX:
|
|
ret = pmbus_read_word_data(client, page, phase,
|
|
MAX34440_MFR_IOUT_PEAK);
|
|
break;
|
|
case PMBUS_VIRT_READ_POUT_AVG:
|
|
if (data->id != max34446)
|
|
return -ENXIO;
|
|
ret = pmbus_read_word_data(client, page, phase,
|
|
MAX34446_MFR_POUT_AVG);
|
|
break;
|
|
case PMBUS_VIRT_READ_POUT_MAX:
|
|
if (data->id != max34446)
|
|
return -ENXIO;
|
|
ret = pmbus_read_word_data(client, page, phase,
|
|
MAX34446_MFR_POUT_PEAK);
|
|
break;
|
|
case PMBUS_VIRT_READ_TEMP_AVG:
|
|
if (data->id != max34446 && data->id != max34460 &&
|
|
data->id != max34461)
|
|
return -ENXIO;
|
|
ret = pmbus_read_word_data(client, page, phase,
|
|
MAX34446_MFR_TEMPERATURE_AVG);
|
|
break;
|
|
case PMBUS_VIRT_READ_TEMP_MAX:
|
|
ret = pmbus_read_word_data(client, page, phase,
|
|
MAX34440_MFR_TEMPERATURE_PEAK);
|
|
break;
|
|
case PMBUS_VIRT_RESET_POUT_HISTORY:
|
|
if (data->id != max34446)
|
|
return -ENXIO;
|
|
ret = 0;
|
|
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 max34440_write_word_data(struct i2c_client *client, int page,
|
|
int reg, u16 word)
|
|
{
|
|
const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
|
|
const struct max34440_data *data = to_max34440_data(info);
|
|
int ret;
|
|
|
|
switch (reg) {
|
|
case PMBUS_IOUT_OC_FAULT_LIMIT:
|
|
ret = pmbus_write_word_data(client, page, MAX34440_IOUT_OC_FAULT_LIMIT,
|
|
word);
|
|
break;
|
|
case PMBUS_IOUT_OC_WARN_LIMIT:
|
|
ret = pmbus_write_word_data(client, page, MAX34440_IOUT_OC_WARN_LIMIT,
|
|
word);
|
|
break;
|
|
case PMBUS_VIRT_RESET_POUT_HISTORY:
|
|
ret = pmbus_write_word_data(client, page,
|
|
MAX34446_MFR_POUT_PEAK, 0);
|
|
if (ret)
|
|
break;
|
|
ret = pmbus_write_word_data(client, page,
|
|
MAX34446_MFR_POUT_AVG, 0);
|
|
break;
|
|
case PMBUS_VIRT_RESET_VOUT_HISTORY:
|
|
ret = pmbus_write_word_data(client, page,
|
|
MAX34440_MFR_VOUT_MIN, 0x7fff);
|
|
if (ret)
|
|
break;
|
|
ret = pmbus_write_word_data(client, page,
|
|
MAX34440_MFR_VOUT_PEAK, 0);
|
|
break;
|
|
case PMBUS_VIRT_RESET_IOUT_HISTORY:
|
|
ret = pmbus_write_word_data(client, page,
|
|
MAX34440_MFR_IOUT_PEAK, 0);
|
|
if (!ret && (data->id == max34446 || data->id == max34451))
|
|
ret = pmbus_write_word_data(client, page,
|
|
MAX34446_MFR_IOUT_AVG, 0);
|
|
|
|
break;
|
|
case PMBUS_VIRT_RESET_TEMP_HISTORY:
|
|
ret = pmbus_write_word_data(client, page,
|
|
MAX34440_MFR_TEMPERATURE_PEAK,
|
|
0x8000);
|
|
if (!ret && data->id == max34446)
|
|
ret = pmbus_write_word_data(client, page,
|
|
MAX34446_MFR_TEMPERATURE_AVG, 0);
|
|
break;
|
|
default:
|
|
ret = -ENODATA;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int max34440_read_byte_data(struct i2c_client *client, int page, int reg)
|
|
{
|
|
int ret = 0;
|
|
int mfg_status;
|
|
|
|
if (page >= 0) {
|
|
ret = pmbus_set_page(client, page, 0xff);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
switch (reg) {
|
|
case PMBUS_STATUS_IOUT:
|
|
mfg_status = pmbus_read_word_data(client, 0, 0xff,
|
|
PMBUS_STATUS_MFR_SPECIFIC);
|
|
if (mfg_status < 0)
|
|
return mfg_status;
|
|
if (mfg_status & MAX34440_STATUS_OC_WARN)
|
|
ret |= PB_IOUT_OC_WARNING;
|
|
if (mfg_status & MAX34440_STATUS_OC_FAULT)
|
|
ret |= PB_IOUT_OC_FAULT;
|
|
break;
|
|
case PMBUS_STATUS_TEMPERATURE:
|
|
mfg_status = pmbus_read_word_data(client, 0, 0xff,
|
|
PMBUS_STATUS_MFR_SPECIFIC);
|
|
if (mfg_status < 0)
|
|
return mfg_status;
|
|
if (mfg_status & MAX34440_STATUS_OT_WARN)
|
|
ret |= PB_TEMP_OT_WARNING;
|
|
if (mfg_status & MAX34440_STATUS_OT_FAULT)
|
|
ret |= PB_TEMP_OT_FAULT;
|
|
break;
|
|
default:
|
|
ret = -ENODATA;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int max34451_set_supported_funcs(struct i2c_client *client,
|
|
struct max34440_data *data)
|
|
{
|
|
/*
|
|
* Each of the channel 0-15 can be configured to monitor the following
|
|
* functions based on MFR_CHANNEL_CONFIG[5:0]
|
|
* 0x10: Sequencing + voltage monitoring (only valid for PAGES 0–11)
|
|
* 0x20: Voltage monitoring (no sequencing)
|
|
* 0x21: Voltage read only
|
|
* 0x22: Current monitoring
|
|
* 0x23: Current read only
|
|
* 0x30: General-purpose input active low
|
|
* 0x34: General-purpose input active high
|
|
* 0x00: Disabled
|
|
*/
|
|
|
|
int page, rv;
|
|
|
|
for (page = 0; page < 16; page++) {
|
|
rv = i2c_smbus_write_byte_data(client, PMBUS_PAGE, page);
|
|
if (rv < 0)
|
|
return rv;
|
|
|
|
rv = i2c_smbus_read_word_data(client,
|
|
MAX34451_MFR_CHANNEL_CONFIG);
|
|
if (rv < 0)
|
|
return rv;
|
|
|
|
switch (rv & MAX34451_MFR_CHANNEL_CONFIG_SEL_MASK) {
|
|
case 0x10:
|
|
case 0x20:
|
|
data->info.func[page] = PMBUS_HAVE_VOUT |
|
|
PMBUS_HAVE_STATUS_VOUT;
|
|
break;
|
|
case 0x21:
|
|
data->info.func[page] = PMBUS_HAVE_VOUT;
|
|
break;
|
|
case 0x22:
|
|
data->info.func[page] = PMBUS_HAVE_IOUT |
|
|
PMBUS_HAVE_STATUS_IOUT;
|
|
break;
|
|
case 0x23:
|
|
data->info.func[page] = PMBUS_HAVE_IOUT;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct pmbus_driver_info max34440_info[] = {
|
|
[max34440] = {
|
|
.pages = 14,
|
|
.format[PSC_VOLTAGE_IN] = direct,
|
|
.format[PSC_VOLTAGE_OUT] = direct,
|
|
.format[PSC_TEMPERATURE] = direct,
|
|
.format[PSC_CURRENT_OUT] = direct,
|
|
.m[PSC_VOLTAGE_IN] = 1,
|
|
.b[PSC_VOLTAGE_IN] = 0,
|
|
.R[PSC_VOLTAGE_IN] = 3, /* R = 0 in datasheet reflects mV */
|
|
.m[PSC_VOLTAGE_OUT] = 1,
|
|
.b[PSC_VOLTAGE_OUT] = 0,
|
|
.R[PSC_VOLTAGE_OUT] = 3, /* R = 0 in datasheet reflects mV */
|
|
.m[PSC_CURRENT_OUT] = 1,
|
|
.b[PSC_CURRENT_OUT] = 0,
|
|
.R[PSC_CURRENT_OUT] = 3, /* R = 0 in datasheet reflects mA */
|
|
.m[PSC_TEMPERATURE] = 1,
|
|
.b[PSC_TEMPERATURE] = 0,
|
|
.R[PSC_TEMPERATURE] = 2,
|
|
.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[6] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[7] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[8] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[9] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[10] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[11] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[12] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[13] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.read_byte_data = max34440_read_byte_data,
|
|
.read_word_data = max34440_read_word_data,
|
|
.write_word_data = max34440_write_word_data,
|
|
},
|
|
[max34441] = {
|
|
.pages = 12,
|
|
.format[PSC_VOLTAGE_IN] = direct,
|
|
.format[PSC_VOLTAGE_OUT] = direct,
|
|
.format[PSC_TEMPERATURE] = direct,
|
|
.format[PSC_CURRENT_OUT] = direct,
|
|
.format[PSC_FAN] = direct,
|
|
.m[PSC_VOLTAGE_IN] = 1,
|
|
.b[PSC_VOLTAGE_IN] = 0,
|
|
.R[PSC_VOLTAGE_IN] = 3,
|
|
.m[PSC_VOLTAGE_OUT] = 1,
|
|
.b[PSC_VOLTAGE_OUT] = 0,
|
|
.R[PSC_VOLTAGE_OUT] = 3,
|
|
.m[PSC_CURRENT_OUT] = 1,
|
|
.b[PSC_CURRENT_OUT] = 0,
|
|
.R[PSC_CURRENT_OUT] = 3,
|
|
.m[PSC_TEMPERATURE] = 1,
|
|
.b[PSC_TEMPERATURE] = 0,
|
|
.R[PSC_TEMPERATURE] = 2,
|
|
.m[PSC_FAN] = 1,
|
|
.b[PSC_FAN] = 0,
|
|
.R[PSC_FAN] = 0,
|
|
.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[5] = PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12,
|
|
.func[6] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[7] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[8] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[9] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[10] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[11] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.read_byte_data = max34440_read_byte_data,
|
|
.read_word_data = max34440_read_word_data,
|
|
.write_word_data = max34440_write_word_data,
|
|
},
|
|
[max34446] = {
|
|
.pages = 7,
|
|
.format[PSC_VOLTAGE_IN] = direct,
|
|
.format[PSC_VOLTAGE_OUT] = direct,
|
|
.format[PSC_TEMPERATURE] = direct,
|
|
.format[PSC_CURRENT_OUT] = direct,
|
|
.format[PSC_POWER] = direct,
|
|
.m[PSC_VOLTAGE_IN] = 1,
|
|
.b[PSC_VOLTAGE_IN] = 0,
|
|
.R[PSC_VOLTAGE_IN] = 3,
|
|
.m[PSC_VOLTAGE_OUT] = 1,
|
|
.b[PSC_VOLTAGE_OUT] = 0,
|
|
.R[PSC_VOLTAGE_OUT] = 3,
|
|
.m[PSC_CURRENT_OUT] = 1,
|
|
.b[PSC_CURRENT_OUT] = 0,
|
|
.R[PSC_CURRENT_OUT] = 3,
|
|
.m[PSC_POWER] = 1,
|
|
.b[PSC_POWER] = 0,
|
|
.R[PSC_POWER] = 3,
|
|
.m[PSC_TEMPERATURE] = 1,
|
|
.b[PSC_TEMPERATURE] = 0,
|
|
.R[PSC_TEMPERATURE] = 2,
|
|
.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT,
|
|
.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT,
|
|
.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
|
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT,
|
|
.func[4] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[5] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[6] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.read_byte_data = max34440_read_byte_data,
|
|
.read_word_data = max34440_read_word_data,
|
|
.write_word_data = max34440_write_word_data,
|
|
},
|
|
[max34451] = {
|
|
.pages = 21,
|
|
.format[PSC_VOLTAGE_OUT] = direct,
|
|
.format[PSC_TEMPERATURE] = direct,
|
|
.format[PSC_CURRENT_OUT] = direct,
|
|
.m[PSC_VOLTAGE_OUT] = 1,
|
|
.b[PSC_VOLTAGE_OUT] = 0,
|
|
.R[PSC_VOLTAGE_OUT] = 3,
|
|
.m[PSC_CURRENT_OUT] = 1,
|
|
.b[PSC_CURRENT_OUT] = 0,
|
|
.R[PSC_CURRENT_OUT] = 2,
|
|
.m[PSC_TEMPERATURE] = 1,
|
|
.b[PSC_TEMPERATURE] = 0,
|
|
.R[PSC_TEMPERATURE] = 2,
|
|
/* func 0-15 is set dynamically before probing */
|
|
.func[16] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[18] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[19] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[20] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.read_word_data = max34440_read_word_data,
|
|
.write_word_data = max34440_write_word_data,
|
|
},
|
|
[max34460] = {
|
|
.pages = 18,
|
|
.format[PSC_VOLTAGE_OUT] = direct,
|
|
.format[PSC_TEMPERATURE] = direct,
|
|
.m[PSC_VOLTAGE_OUT] = 1,
|
|
.b[PSC_VOLTAGE_OUT] = 0,
|
|
.R[PSC_VOLTAGE_OUT] = 3,
|
|
.m[PSC_TEMPERATURE] = 1,
|
|
.b[PSC_TEMPERATURE] = 0,
|
|
.R[PSC_TEMPERATURE] = 2,
|
|
.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[6] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[7] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[8] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[9] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[10] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[11] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[13] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[14] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[15] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[16] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.read_word_data = max34440_read_word_data,
|
|
.write_word_data = max34440_write_word_data,
|
|
},
|
|
[max34461] = {
|
|
.pages = 23,
|
|
.format[PSC_VOLTAGE_OUT] = direct,
|
|
.format[PSC_TEMPERATURE] = direct,
|
|
.m[PSC_VOLTAGE_OUT] = 1,
|
|
.b[PSC_VOLTAGE_OUT] = 0,
|
|
.R[PSC_VOLTAGE_OUT] = 3,
|
|
.m[PSC_TEMPERATURE] = 1,
|
|
.b[PSC_TEMPERATURE] = 0,
|
|
.R[PSC_TEMPERATURE] = 2,
|
|
.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[6] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[7] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[8] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[9] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[10] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[11] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[12] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[13] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[14] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
.func[15] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
|
|
/* page 16 is reserved */
|
|
.func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[18] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[19] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[20] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.func[21] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
|
|
.read_word_data = max34440_read_word_data,
|
|
.write_word_data = max34440_write_word_data,
|
|
},
|
|
};
|
|
|
|
static int max34440_probe(struct i2c_client *client)
|
|
{
|
|
struct max34440_data *data;
|
|
int rv;
|
|
|
|
data = devm_kzalloc(&client->dev, sizeof(struct max34440_data),
|
|
GFP_KERNEL);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
data->id = i2c_match_id(max34440_id, client)->driver_data;
|
|
data->info = max34440_info[data->id];
|
|
|
|
if (data->id == max34451) {
|
|
rv = max34451_set_supported_funcs(client, data);
|
|
if (rv)
|
|
return rv;
|
|
}
|
|
|
|
return pmbus_do_probe(client, &data->info);
|
|
}
|
|
|
|
static const struct i2c_device_id max34440_id[] = {
|
|
{"max34440", max34440},
|
|
{"max34441", max34441},
|
|
{"max34446", max34446},
|
|
{"max34451", max34451},
|
|
{"max34460", max34460},
|
|
{"max34461", max34461},
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, max34440_id);
|
|
|
|
/* This is the driver that will be inserted */
|
|
static struct i2c_driver max34440_driver = {
|
|
.driver = {
|
|
.name = "max34440",
|
|
},
|
|
.probe_new = max34440_probe,
|
|
.id_table = max34440_id,
|
|
};
|
|
|
|
module_i2c_driver(max34440_driver);
|
|
|
|
MODULE_AUTHOR("Guenter Roeck");
|
|
MODULE_DESCRIPTION("PMBus driver for Maxim MAX34440/MAX34441");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_IMPORT_NS(PMBUS);
|