hwmon: (pmbus/lm25066) Add support for LM25063
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck
parent
84fb029faa
commit
c8ccab7ab5
|
|
@ -8,6 +8,11 @@ Supported chips:
|
|||
Datasheets:
|
||||
http://www.ti.com/lit/gpn/lm25056
|
||||
http://www.ti.com/lit/gpn/lm25056a
|
||||
* TI LM25063
|
||||
Prefix: 'lm25063'
|
||||
Addresses scanned: -
|
||||
Datasheet:
|
||||
To be announced
|
||||
* National Semiconductor LM25066
|
||||
Prefix: 'lm25066'
|
||||
Addresses scanned: -
|
||||
|
|
@ -32,7 +37,7 @@ Description
|
|||
-----------
|
||||
|
||||
This driver supports hardware montoring for National Semiconductor / TI LM25056,
|
||||
LM25066, LM5064, and LM5064 Power Management, Monitoring, Control, and
|
||||
LM25063, LM25066, LM5064, and LM5066 Power Management, Monitoring, Control, and
|
||||
Protection ICs.
|
||||
|
||||
The driver is a client driver to the core PMBus driver. Please see
|
||||
|
|
@ -64,8 +69,12 @@ in1_input Measured input voltage.
|
|||
in1_average Average measured input voltage.
|
||||
in1_min Minimum input voltage.
|
||||
in1_max Maximum input voltage.
|
||||
in1_crit Critical high input voltage (LM25063 only).
|
||||
in1_lcrit Critical low input voltage (LM25063 only).
|
||||
in1_min_alarm Input voltage low alarm.
|
||||
in1_max_alarm Input voltage high alarm.
|
||||
in1_lcrit_alarm Input voltage critical low alarm (LM25063 only).
|
||||
in1_crit_alarm Input voltage critical high alarm. (LM25063 only).
|
||||
|
||||
in2_label "vmon"
|
||||
in2_input Measured voltage on VAUX pin
|
||||
|
|
@ -80,12 +89,16 @@ in3_input Measured output voltage.
|
|||
in3_average Average measured output voltage.
|
||||
in3_min Minimum output voltage.
|
||||
in3_min_alarm Output voltage low alarm.
|
||||
in3_highest Historical minimum output voltage (LM25063 only).
|
||||
in3_lowest Historical maximum output voltage (LM25063 only).
|
||||
|
||||
curr1_label "iin"
|
||||
curr1_input Measured input current.
|
||||
curr1_average Average measured input current.
|
||||
curr1_max Maximum input current.
|
||||
curr1_crit Critical input current (LM25063 only).
|
||||
curr1_max_alarm Input current high alarm.
|
||||
curr1_crit_alarm Input current critical high alarm (LM25063 only).
|
||||
|
||||
power1_label "pin"
|
||||
power1_input Measured input power.
|
||||
|
|
@ -95,6 +108,11 @@ power1_alarm Input power alarm
|
|||
power1_input_highest Historical maximum power.
|
||||
power1_reset_history Write any value to reset maximum power history.
|
||||
|
||||
power2_label "pout". LM25063 only.
|
||||
power2_input Measured output power.
|
||||
power2_max Maximum output power limit.
|
||||
power2_crit Critical output power limit.
|
||||
|
||||
temp1_input Measured temperature.
|
||||
temp1_max Maximum temperature.
|
||||
temp1_crit Critical high temperature.
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
* Hardware monitoring driver for LM25056 / LM25066 / LM5064 / LM5066
|
||||
* Hardware monitoring driver for LM25056 / LM25063 / LM25066 / LM5064 / LM5066
|
||||
*
|
||||
* Copyright (c) 2011 Ericsson AB.
|
||||
* Copyright (c) 2013 Guenter Roeck
|
||||
|
|
@ -27,7 +27,7 @@
|
|||
#include <linux/i2c.h>
|
||||
#include "pmbus.h"
|
||||
|
||||
enum chips { lm25056, lm25066, lm5064, lm5066 };
|
||||
enum chips { lm25056, lm25063, lm25066, lm5064, lm5066 };
|
||||
|
||||
#define LM25066_READ_VAUX 0xd0
|
||||
#define LM25066_MFR_READ_IIN 0xd1
|
||||
|
|
@ -52,6 +52,11 @@ enum chips { lm25056, lm25066, lm5064, lm5066 };
|
|||
#define LM25056_MFR_STS_VAUX_OV_WARN (1 << 1)
|
||||
#define LM25056_MFR_STS_VAUX_UV_WARN (1 << 0)
|
||||
|
||||
/* LM25063 only */
|
||||
|
||||
#define LM25063_READ_VOUT_MAX 0xe5
|
||||
#define LM25063_READ_VOUT_MIN 0xe6
|
||||
|
||||
struct __coeff {
|
||||
short m, b, R;
|
||||
};
|
||||
|
|
@ -59,7 +64,7 @@ struct __coeff {
|
|||
#define PSC_CURRENT_IN_L (PSC_NUM_CLASSES)
|
||||
#define PSC_POWER_L (PSC_NUM_CLASSES + 1)
|
||||
|
||||
static struct __coeff lm25066_coeff[4][PSC_NUM_CLASSES + 2] = {
|
||||
static struct __coeff lm25066_coeff[5][PSC_NUM_CLASSES + 2] = {
|
||||
[lm25056] = {
|
||||
[PSC_VOLTAGE_IN] = {
|
||||
.m = 16296,
|
||||
|
|
@ -116,6 +121,36 @@ static struct __coeff lm25066_coeff[4][PSC_NUM_CLASSES + 2] = {
|
|||
.m = 16,
|
||||
},
|
||||
},
|
||||
[lm25063] = {
|
||||
[PSC_VOLTAGE_IN] = {
|
||||
.m = 16000,
|
||||
.R = -2,
|
||||
},
|
||||
[PSC_VOLTAGE_OUT] = {
|
||||
.m = 16000,
|
||||
.R = -2,
|
||||
},
|
||||
[PSC_CURRENT_IN] = {
|
||||
.m = 10000,
|
||||
.R = -2,
|
||||
},
|
||||
[PSC_CURRENT_IN_L] = {
|
||||
.m = 10000,
|
||||
.R = -2,
|
||||
},
|
||||
[PSC_POWER] = {
|
||||
.m = 5000,
|
||||
.R = -3,
|
||||
},
|
||||
[PSC_POWER_L] = {
|
||||
.m = 5000,
|
||||
.R = -3,
|
||||
},
|
||||
[PSC_TEMPERATURE] = {
|
||||
.m = 15596,
|
||||
.R = -3,
|
||||
},
|
||||
},
|
||||
[lm5064] = {
|
||||
[PSC_VOLTAGE_IN] = {
|
||||
.m = 4611,
|
||||
|
|
@ -178,6 +213,7 @@ static struct __coeff lm25066_coeff[4][PSC_NUM_CLASSES + 2] = {
|
|||
|
||||
struct lm25066_data {
|
||||
int id;
|
||||
u16 rlimit; /* Maximum register value */
|
||||
struct pmbus_driver_info info;
|
||||
};
|
||||
|
||||
|
|
@ -200,6 +236,10 @@ static int lm25066_read_word_data(struct i2c_client *client, int page, int reg)
|
|||
/* VIN: 6.14 mV VAUX: 293 uV LSB */
|
||||
ret = DIV_ROUND_CLOSEST(ret * 293, 6140);
|
||||
break;
|
||||
case lm25063:
|
||||
/* VIN: 6.25 mV VAUX: 200.0 uV LSB */
|
||||
ret = DIV_ROUND_CLOSEST(ret * 20, 625);
|
||||
break;
|
||||
case lm25066:
|
||||
/* VIN: 4.54 mV VAUX: 283.2 uV LSB */
|
||||
ret = DIV_ROUND_CLOSEST(ret * 2832, 45400);
|
||||
|
|
@ -253,6 +293,24 @@ static int lm25066_read_word_data(struct i2c_client *client, int page, int reg)
|
|||
return ret;
|
||||
}
|
||||
|
||||
static int lm25063_read_word_data(struct i2c_client *client, int page, int reg)
|
||||
{
|
||||
int ret;
|
||||
|
||||
switch (reg) {
|
||||
case PMBUS_VIRT_READ_VOUT_MAX:
|
||||
ret = pmbus_read_word_data(client, 0, LM25063_READ_VOUT_MAX);
|
||||
break;
|
||||
case PMBUS_VIRT_READ_VOUT_MIN:
|
||||
ret = pmbus_read_word_data(client, 0, LM25063_READ_VOUT_MIN);
|
||||
break;
|
||||
default:
|
||||
ret = lm25066_read_word_data(client, page, reg);
|
||||
break;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int lm25056_read_word_data(struct i2c_client *client, int page, int reg)
|
||||
{
|
||||
int ret;
|
||||
|
|
@ -308,27 +366,34 @@ static int lm25056_read_byte_data(struct i2c_client *client, int page, int reg)
|
|||
static int lm25066_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 lm25066_data *data = to_lm25066_data(info);
|
||||
int ret;
|
||||
|
||||
switch (reg) {
|
||||
case PMBUS_POUT_OP_FAULT_LIMIT:
|
||||
case PMBUS_POUT_OP_WARN_LIMIT:
|
||||
case PMBUS_VOUT_UV_WARN_LIMIT:
|
||||
case PMBUS_OT_FAULT_LIMIT:
|
||||
case PMBUS_OT_WARN_LIMIT:
|
||||
case PMBUS_IIN_OC_FAULT_LIMIT:
|
||||
case PMBUS_VIN_UV_WARN_LIMIT:
|
||||
case PMBUS_VIN_UV_FAULT_LIMIT:
|
||||
case PMBUS_VIN_OV_FAULT_LIMIT:
|
||||
case PMBUS_VIN_OV_WARN_LIMIT:
|
||||
word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
|
||||
word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
|
||||
ret = pmbus_write_word_data(client, 0, reg, word);
|
||||
pmbus_clear_cache(client);
|
||||
break;
|
||||
case PMBUS_IIN_OC_WARN_LIMIT:
|
||||
word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
|
||||
word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
|
||||
ret = pmbus_write_word_data(client, 0,
|
||||
LM25066_MFR_IIN_OC_WARN_LIMIT,
|
||||
word);
|
||||
pmbus_clear_cache(client);
|
||||
break;
|
||||
case PMBUS_PIN_OP_WARN_LIMIT:
|
||||
word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
|
||||
word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
|
||||
ret = pmbus_write_word_data(client, 0,
|
||||
LM25066_MFR_PIN_OP_WARN_LIMIT,
|
||||
word);
|
||||
|
|
@ -337,7 +402,7 @@ static int lm25066_write_word_data(struct i2c_client *client, int page, int reg,
|
|||
case PMBUS_VIRT_VMON_UV_WARN_LIMIT:
|
||||
/* Adjust from VIN coefficients (for LM25056) */
|
||||
word = DIV_ROUND_CLOSEST((int)word * 6140, 293);
|
||||
word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
|
||||
word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
|
||||
ret = pmbus_write_word_data(client, 0,
|
||||
LM25056_VAUX_UV_WARN_LIMIT, word);
|
||||
pmbus_clear_cache(client);
|
||||
|
|
@ -345,7 +410,7 @@ static int lm25066_write_word_data(struct i2c_client *client, int page, int reg,
|
|||
case PMBUS_VIRT_VMON_OV_WARN_LIMIT:
|
||||
/* Adjust from VIN coefficients (for LM25056) */
|
||||
word = DIV_ROUND_CLOSEST((int)word * 6140, 293);
|
||||
word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
|
||||
word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
|
||||
ret = pmbus_write_word_data(client, 0,
|
||||
LM25056_VAUX_OV_WARN_LIMIT, word);
|
||||
pmbus_clear_cache(client);
|
||||
|
|
@ -399,9 +464,16 @@ static int lm25066_probe(struct i2c_client *client,
|
|||
info->func[0] |= PMBUS_HAVE_STATUS_VMON;
|
||||
info->read_word_data = lm25056_read_word_data;
|
||||
info->read_byte_data = lm25056_read_byte_data;
|
||||
data->rlimit = 0x0fff;
|
||||
} else if (data->id == lm25063) {
|
||||
info->func[0] |= PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
|
||||
| PMBUS_HAVE_POUT;
|
||||
info->read_word_data = lm25063_read_word_data;
|
||||
data->rlimit = 0xffff;
|
||||
} else {
|
||||
info->func[0] |= PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
|
||||
info->read_word_data = lm25066_read_word_data;
|
||||
data->rlimit = 0x0fff;
|
||||
}
|
||||
info->write_word_data = lm25066_write_word_data;
|
||||
|
||||
|
|
@ -432,6 +504,7 @@ static int lm25066_probe(struct i2c_client *client,
|
|||
|
||||
static const struct i2c_device_id lm25066_id[] = {
|
||||
{"lm25056", lm25056},
|
||||
{"lm25063", lm25063},
|
||||
{"lm25066", lm25066},
|
||||
{"lm5064", lm5064},
|
||||
{"lm5066", lm5066},
|
||||
|
|
@ -453,5 +526,5 @@ static struct i2c_driver lm25066_driver = {
|
|||
module_i2c_driver(lm25066_driver);
|
||||
|
||||
MODULE_AUTHOR("Guenter Roeck");
|
||||
MODULE_DESCRIPTION("PMBus driver for LM25056/LM25066/LM5064/LM5066");
|
||||
MODULE_DESCRIPTION("PMBus driver for LM25066 and compatible chips");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
|
|
|||
Loading…
Reference in New Issue