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[devices]: enable sonic-platform-modules-cel

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This commit is contained in:
Guohan Lu 2018-02-16 03:53:12 +00:00
parent f489bea105
commit ec9dc57704
7 changed files with 351 additions and 339 deletions
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2
platform/broadcom/rules.mk
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@ -6,7 +6,7 @@ include $(PLATFORM_PATH)/platform-modules-dell.mk
include $(PLATFORM_PATH)/platform-modules-ingrasys.mk
include $(PLATFORM_PATH)/platform-modules-accton.mk
include $(PLATFORM_PATH)/platform-modules-inventec.mk
#include $(PLATFORM_PATH)/platform-modules-cel.mk
include $(PLATFORM_PATH)/platform-modules-cel.mk
#include $(PLATFORM_PATH)/platform-modules-delta.mk
include $(PLATFORM_PATH)/platform-modules-quanta.mk
#include $(PLATFORM_PATH)/platform-modules-mitac.mk

3
platform/broadcom/sonic-platform-modules-cel/.gitignore vendored
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@ -7,6 +7,9 @@
# Precompiled Headers
*.gch
*.pch
*.mod.c
*.ko.cmd
*.o.cmd
# Libraries
*.lib

2
platform/broadcom/sonic-platform-modules-cel/debian/control
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@ -7,6 +7,6 @@ Standards-Version: 3.9.3
Package: platform-modules-dx010
Architecture: amd64
Depends: linux-image-3.16.0-5-amd64
Depends: linux-image-4.9.0-5-amd64
Description: kernel modules for platform devices such as fan, led, sfp

0
platform/broadcom/sonic-platform-modules-cel/debian/rules Normal file → Executable file
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5
platform/broadcom/sonic-platform-modules-cel/dx010/modules/Makefile
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@ -1 +1,6 @@
obj-m := dx010_cpld.o mc24lc64t.o emc2305.o dx010_wdt.o leds-dx010.o lm75.o
KVERSION = $(shell uname -r)
all:
make -C /lib/modules/$(KVERSION)/build M=$(PWD) modules
clean:
make -C /lib/modules/$(KVERSION)/build M=$(PWD) clean

676
platform/broadcom/sonic-platform-modules-cel/dx010/modules/lm75.c
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@ -37,50 +37,50 @@
*/
enum lm75_type { /* keep sorted in alphabetical order */
adt75,
ds1775,
ds75,
ds7505,
g751,
lm75,
lm75a,
lm75b,
max6625,
max6626,
mcp980x,
stds75,
tcn75,
tmp100,
tmp101,
tmp105,
tmp112,
tmp175,
tmp275,
tmp75,
adt75,
ds1775,
ds75,
ds7505,
g751,
lm75,
lm75a,
lm75b,
max6625,
max6626,
mcp980x,
stds75,
tcn75,
tmp100,
tmp101,
tmp105,
tmp112,
tmp175,
tmp275,
tmp75,
};
/* Addresses scanned */
static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
/* The LM75 registers */
#define LM75_REG_CONF 0x01
static const u8 LM75_REG_TEMP[3] = {
static const u8 LM75_REG_TEMP[3] = {
0x00, /* input */
0x03, /* max */
0x02, /* hyst */
};
};
/* Each client has this additional data */
struct lm75_data {
struct i2c_client *client;
struct device *hwmon_dev;
struct thermal_zone_device *tz;
struct mutex update_lock;
u8 orig_conf;
struct lm75_data {
struct i2c_client *client;
struct device *hwmon_dev;
struct thermal_zone_device *tz;
struct mutex update_lock;
u8 orig_conf;
u8 resolution; /* In bits, between 9 and 12 */
u8 resolution_limits;
u8 resolution_limits;
char valid; /* !=0 if registers are valid */
unsigned long last_updated; /* In jiffies */
unsigned long sample_time; /* In jiffies */
@ -88,276 +88,280 @@ struct lm75_data {
0 = input
1 = max
2 = hyst */
};
};
static int lm75_read_value(struct i2c_client *client, u8 reg);
static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value);
static struct lm75_data *lm75_update_device(struct device *dev);
static int lm75_read_value(struct i2c_client *client, u8 reg);
static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value);
static struct lm75_data *lm75_update_device(struct device *dev);
/*-----------------------------------------------------------------------*/
static inline long lm75_reg_to_mc(s16 temp, u8 resolution)
{
return ((temp >> (16 - resolution)) * 1000) >> (resolution - 8);
}
static inline long lm75_reg_to_mc(s16 temp, u8 resolution)
{
return ((temp >> (16 - resolution)) * 1000) >> (resolution - 8);
}
/* sysfs attributes for hwmon */
static int lm75_read_temp(void *dev, long *temp)
{
struct lm75_data *data = lm75_update_device(dev);
static int lm75_read_temp(void *dev, int *temp)
{
struct lm75_data *data = lm75_update_device(dev);
if (IS_ERR(data))
return PTR_ERR(data);
if (IS_ERR(data))
return PTR_ERR(data);
*temp = lm75_reg_to_mc(data->temp[0], data->resolution);
*temp = lm75_reg_to_mc(data->temp[0], data->resolution);
return 0;
}
return 0;
}
static ssize_t show_temp(struct device *dev, struct device_attribute *da,
char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct lm75_data *data = lm75_update_device(dev);
static ssize_t show_temp(struct device *dev, struct device_attribute *da,
char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct lm75_data *data = lm75_update_device(dev);
if (IS_ERR(data))
return PTR_ERR(data);
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%ld\n", lm75_reg_to_mc(data->temp[attr->index],
data->resolution));
}
return sprintf(buf, "%ld\n", lm75_reg_to_mc(data->temp[attr->index],
data->resolution));
}
static ssize_t set_temp(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct lm75_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int nr = attr->index;
long temp;
int error;
u8 resolution;
static ssize_t set_temp(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct lm75_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int nr = attr->index;
long temp;
int error;
u8 resolution;
error = kstrtol(buf, 10, &temp);
if (error)
return error;
error = kstrtol(buf, 10, &temp);
if (error)
return error;
/*
* Resolution of limit registers is assumed to be the same as the
* temperature input register resolution unless given explicitly.
*/
if (attr->index && data->resolution_limits)
resolution = data->resolution_limits;
else
resolution = data->resolution;
if (attr->index && data->resolution_limits)
resolution = data->resolution_limits;
else
resolution = data->resolution;
mutex_lock(&data->update_lock);
temp = clamp_val(temp, LM75_TEMP_MIN, LM75_TEMP_MAX);
data->temp[nr] = DIV_ROUND_CLOSEST(temp << (resolution - 8),
1000) << (16 - resolution);
lm75_write_value(client, LM75_REG_TEMP[nr], data->temp[nr]);
mutex_unlock(&data->update_lock);
return count;
}
mutex_lock(&data->update_lock);
temp = clamp_val(temp, LM75_TEMP_MIN, LM75_TEMP_MAX);
data->temp[nr] = DIV_ROUND_CLOSEST(temp << (resolution - 8),
1000) << (16 - resolution);
lm75_write_value(client, LM75_REG_TEMP[nr], data->temp[nr]);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
show_temp, set_temp, 1);
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,
show_temp, set_temp, 2);
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
show_temp, set_temp, 1);
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,
show_temp, set_temp, 2);
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
static struct attribute *lm75_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
static struct attribute *lm75_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
NULL
};
ATTRIBUTE_GROUPS(lm75);
NULL
};
ATTRIBUTE_GROUPS(lm75);
/*-----------------------------------------------------------------------*/
static const struct thermal_zone_of_device_ops lm75_of_thermal_ops = {
.get_temp = lm75_read_temp,
};
/* device probe and removal */
static int
lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct lm75_data *data;
int status;
u8 set_mask, clr_mask;
int new;
enum lm75_type kind = id->driver_data;
static int
lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct lm75_data *data;
int status;
u8 set_mask, clr_mask;
int new;
enum lm75_type kind = id->driver_data;
if (!i2c_check_functionality(client->adapter,
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
return -EIO;
return -EIO;
data = devm_kzalloc(dev, sizeof(struct lm75_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data = devm_kzalloc(dev, sizeof(struct lm75_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->client = client;
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
data->client = client;
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
/* Set to LM75 resolution (9 bits, 1/2 degree C) and range.
* Then tweak to be more precise when appropriate.
*/
set_mask = 0;
set_mask = 0;
clr_mask = LM75_SHUTDOWN; /* continuous conversions */
switch (kind) {
case adt75:
switch (kind) {
case adt75:
clr_mask |= 1 << 5; /* not one-shot mode */
data->resolution = 12;
data->sample_time = HZ / 8;
break;
case ds1775:
case ds75:
case stds75:
clr_mask |= 3 << 5;
data->resolution = 12;
data->sample_time = HZ / 8;
break;
case ds1775:
case ds75:
case stds75:
clr_mask |= 3 << 5;
set_mask |= 2 << 5; /* 11-bit mode */
data->resolution = 11;
data->sample_time = HZ;
break;
case ds7505:
data->resolution = 11;
data->sample_time = HZ;
break;
case ds7505:
set_mask |= 3 << 5; /* 12-bit mode */
data->resolution = 12;
data->sample_time = HZ / 4;
break;
case g751:
case lm75:
case lm75a:
data->resolution = 9;
data->sample_time = HZ / 2;
break;
case lm75b:
data->resolution = 11;
data->sample_time = HZ / 4;
break;
case max6625:
data->resolution = 9;
data->sample_time = HZ / 4;
break;
case max6626:
data->resolution = 12;
data->resolution_limits = 9;
data->sample_time = HZ / 4;
break;
case tcn75:
data->resolution = 9;
data->sample_time = HZ / 8;
break;
case mcp980x:
data->resolution_limits = 9;
data->resolution = 12;
data->sample_time = HZ / 4;
break;
case g751:
case lm75:
case lm75a:
data->resolution = 9;
data->sample_time = HZ / 2;
break;
case lm75b:
data->resolution = 11;
data->sample_time = HZ / 4;
break;
case max6625:
data->resolution = 9;
data->sample_time = HZ / 4;
break;
case max6626:
data->resolution = 12;
data->resolution_limits = 9;
data->sample_time = HZ / 4;
break;
case tcn75:
data->resolution = 9;
data->sample_time = HZ / 8;
break;
case mcp980x:
data->resolution_limits = 9;
/* fall through */
case tmp100:
case tmp101:
case tmp100:
case tmp101:
set_mask |= 3 << 5; /* 12-bit mode */
data->resolution = 12;
data->sample_time = HZ;
data->resolution = 12;
data->sample_time = HZ;
clr_mask |= 1 << 7; /* not one-shot mode */
break;
case tmp112:
break;
case tmp112:
set_mask |= 3 << 5; /* 12-bit mode */
clr_mask |= 1 << 7; /* not one-shot mode */
data->resolution = 12;
data->sample_time = HZ / 4;
break;
case tmp105:
case tmp175:
case tmp275:
case tmp75:
data->resolution = 12;
data->sample_time = HZ / 4;
break;
case tmp105:
case tmp175:
case tmp275:
case tmp75:
set_mask |= 3 << 5; /* 12-bit mode */
clr_mask |= 1 << 7; /* not one-shot mode */
data->resolution = 12;
data->sample_time = HZ / 2;
break;
}
data->resolution = 12;
data->sample_time = HZ / 2;
break;
}
/* configure as specified */
status = lm75_read_value(client, LM75_REG_CONF);
if (status < 0) {
dev_dbg(dev, "Can't read config? %d\n", status);
return status;
status = lm75_read_value(client, LM75_REG_CONF);
if (status < 0) {
dev_dbg(dev, "Can't read config? %d\n", status);
return status;
}
data->orig_conf = status;
new = status & ~clr_mask;
new |= set_mask;
if (status != new)
lm75_write_value(client, LM75_REG_CONF, new);
dev_dbg(dev, "Config %02x\n", new);
data->hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
data, lm75_groups);
if (IS_ERR(data->hwmon_dev))
return PTR_ERR(data->hwmon_dev);
data->tz = thermal_zone_of_sensor_register(data->hwmon_dev,
0,
data->hwmon_dev,
&lm75_of_thermal_ops);
if (IS_ERR(data->tz))
data->tz = NULL;
dev_info(dev, "%s: sensor '%s'\n",
dev_name(data->hwmon_dev), client->name);
return 0;
}
data->orig_conf = status;
new = status & ~clr_mask;
new |= set_mask;
if (status != new)
lm75_write_value(client, LM75_REG_CONF, new);
dev_dbg(dev, "Config %02x\n", new);
data->hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
data, lm75_groups);
if (IS_ERR(data->hwmon_dev))
return PTR_ERR(data->hwmon_dev);
static int lm75_remove(struct i2c_client *client)
{
struct lm75_data *data = i2c_get_clientdata(client);
data->tz = thermal_zone_of_sensor_register(data->hwmon_dev,
0,
data->hwmon_dev,
lm75_read_temp, NULL);
if (IS_ERR(data->tz))
data->tz = NULL;
thermal_zone_of_sensor_unregister(data->hwmon_dev, data->tz);
hwmon_device_unregister(data->hwmon_dev);
lm75_write_value(client, LM75_REG_CONF, data->orig_conf);
return 0;
}
dev_info(dev, "%s: sensor '%s'\n",
dev_name(data->hwmon_dev), client->name);
return 0;
}
static int lm75_remove(struct i2c_client *client)
{
struct lm75_data *data = i2c_get_clientdata(client);
thermal_zone_of_sensor_unregister(data->hwmon_dev, data->tz);
hwmon_device_unregister(data->hwmon_dev);
lm75_write_value(client, LM75_REG_CONF, data->orig_conf);
return 0;
}
static const struct i2c_device_id lm75_ids[] = {
{ "adt75", adt75, },
{ "ds1775", ds1775, },
{ "ds75", ds75, },
{ "ds7505", ds7505, },
{ "g751", g751, },
{ "lm75", lm75, },
{ "lm75a", lm75a, },
{ "dx010_lm75b", lm75b, },
{ "max6625", max6625, },
{ "max6626", max6626, },
{ "mcp980x", mcp980x, },
{ "stds75", stds75, },
{ "tcn75", tcn75, },
{ "tmp100", tmp100, },
{ "tmp101", tmp101, },
{ "tmp105", tmp105, },
{ "tmp112", tmp112, },
{ "tmp175", tmp175, },
{ "tmp275", tmp275, },
{ "tmp75", tmp75, },
static const struct i2c_device_id lm75_ids[] = {
{ "adt75", adt75, },
{ "ds1775", ds1775, },
{ "ds75", ds75, },
{ "ds7505", ds7505, },
{ "g751", g751, },
{ "lm75", lm75, },
{ "lm75a", lm75a, },
{ "dx010_lm75b", lm75b, },
{ "max6625", max6625, },
{ "max6626", max6626, },
{ "mcp980x", mcp980x, },
{ "stds75", stds75, },
{ "tcn75", tcn75, },
{ "tmp100", tmp100, },
{ "tmp101", tmp101, },
{ "tmp105", tmp105, },
{ "tmp112", tmp112, },
{ "tmp175", tmp175, },
{ "tmp275", tmp275, },
{ "tmp75", tmp75, },
{ /* LIST END */ }
};
MODULE_DEVICE_TABLE(i2c, lm75_ids);
};
MODULE_DEVICE_TABLE(i2c, lm75_ids);
#define LM75A_ID 0xA1
/* Return 0 if detection is successful, -ENODEV otherwise */
static int lm75_detect(struct i2c_client *new_client,
struct i2c_board_info *info)
{
struct i2c_adapter *adapter = new_client->adapter;
int i;
int conf, hyst, os;
bool is_lm75a = 0;
static int lm75_detect(struct i2c_client *new_client,
struct i2c_board_info *info)
{
struct i2c_adapter *adapter = new_client->adapter;
int i;
int conf, hyst, os;
bool is_lm75a = 0;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
I2C_FUNC_SMBUS_WORD_DATA))
return -ENODEV;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
I2C_FUNC_SMBUS_WORD_DATA))
return -ENODEV;
/*
* Now, we do the remaining detection. There is no identification-
@ -385,105 +389,105 @@ static int lm75_detect(struct i2c_client *new_client,
*/
/* Unused bits */
conf = i2c_smbus_read_byte_data(new_client, 1);
if (conf & 0xe0)
return -ENODEV;
conf = i2c_smbus_read_byte_data(new_client, 1);
if (conf & 0xe0)
return -ENODEV;
/* First check for LM75A */
if (i2c_smbus_read_byte_data(new_client, 7) == LM75A_ID) {
if (i2c_smbus_read_byte_data(new_client, 7) == LM75A_ID) {
/* LM75A returns 0xff on unused registers so
just to be sure we check for that too. */
if (i2c_smbus_read_byte_data(new_client, 4) != 0xff
|| i2c_smbus_read_byte_data(new_client, 5) != 0xff
|| i2c_smbus_read_byte_data(new_client, 6) != 0xff)
return -ENODEV;
is_lm75a = 1;
hyst = i2c_smbus_read_byte_data(new_client, 2);
os = i2c_smbus_read_byte_data(new_client, 3);
if (i2c_smbus_read_byte_data(new_client, 4) != 0xff
|| i2c_smbus_read_byte_data(new_client, 5) != 0xff
|| i2c_smbus_read_byte_data(new_client, 6) != 0xff)
return -ENODEV;
is_lm75a = 1;
hyst = i2c_smbus_read_byte_data(new_client, 2);
os = i2c_smbus_read_byte_data(new_client, 3);
} else { /* Traditional style LM75 detection */
/* Unused addresses */
hyst = i2c_smbus_read_byte_data(new_client, 2);
if (i2c_smbus_read_byte_data(new_client, 4) != hyst
|| i2c_smbus_read_byte_data(new_client, 5) != hyst
|| i2c_smbus_read_byte_data(new_client, 6) != hyst
|| i2c_smbus_read_byte_data(new_client, 7) != hyst)
return -ENODEV;
os = i2c_smbus_read_byte_data(new_client, 3);
if (i2c_smbus_read_byte_data(new_client, 4) != os
|| i2c_smbus_read_byte_data(new_client, 5) != os
|| i2c_smbus_read_byte_data(new_client, 6) != os
|| i2c_smbus_read_byte_data(new_client, 7) != os)
return -ENODEV;
}
hyst = i2c_smbus_read_byte_data(new_client, 2);
if (i2c_smbus_read_byte_data(new_client, 4) != hyst
|| i2c_smbus_read_byte_data(new_client, 5) != hyst
|| i2c_smbus_read_byte_data(new_client, 6) != hyst
|| i2c_smbus_read_byte_data(new_client, 7) != hyst)
return -ENODEV;
os = i2c_smbus_read_byte_data(new_client, 3);
if (i2c_smbus_read_byte_data(new_client, 4) != os
|| i2c_smbus_read_byte_data(new_client, 5) != os
|| i2c_smbus_read_byte_data(new_client, 6) != os
|| i2c_smbus_read_byte_data(new_client, 7) != os)
return -ENODEV;
}
/* Addresses cycling */
for (i = 8; i <= 248; i += 40) {
if (i2c_smbus_read_byte_data(new_client, i + 1) != conf
|| i2c_smbus_read_byte_data(new_client, i + 2) != hyst
|| i2c_smbus_read_byte_data(new_client, i + 3) != os)
return -ENODEV;
if (is_lm75a && i2c_smbus_read_byte_data(new_client, i + 7)
for (i = 8; i <= 248; i += 40) {
if (i2c_smbus_read_byte_data(new_client, i + 1) != conf
|| i2c_smbus_read_byte_data(new_client, i + 2) != hyst
|| i2c_smbus_read_byte_data(new_client, i + 3) != os)
return -ENODEV;
if (is_lm75a && i2c_smbus_read_byte_data(new_client, i + 7)
!= LM75A_ID)
return -ENODEV;
return -ENODEV;
}
strlcpy(info->type, is_lm75a ? "lm75a" : "lm75", I2C_NAME_SIZE);
return 0;
}
strlcpy(info->type, is_lm75a ? "lm75a" : "lm75", I2C_NAME_SIZE);
return 0;
}
#ifdef CONFIG_PM
static int lm75_suspend(struct device *dev)
{
int status;
struct i2c_client *client = to_i2c_client(dev);
status = lm75_read_value(client, LM75_REG_CONF);
if (status < 0) {
dev_dbg(&client->dev, "Can't read config? %d\n", status);
return status;
static int lm75_suspend(struct device *dev)
{
int status;
struct i2c_client *client = to_i2c_client(dev);
status = lm75_read_value(client, LM75_REG_CONF);
if (status < 0) {
dev_dbg(&client->dev, "Can't read config? %d\n", status);
return status;
}
status = status | LM75_SHUTDOWN;
lm75_write_value(client, LM75_REG_CONF, status);
return 0;
}
status = status | LM75_SHUTDOWN;
lm75_write_value(client, LM75_REG_CONF, status);
return 0;
}
static int lm75_resume(struct device *dev)
{
int status;
struct i2c_client *client = to_i2c_client(dev);
status = lm75_read_value(client, LM75_REG_CONF);
if (status < 0) {
dev_dbg(&client->dev, "Can't read config? %d\n", status);
return status;
static int lm75_resume(struct device *dev)
{
int status;
struct i2c_client *client = to_i2c_client(dev);
status = lm75_read_value(client, LM75_REG_CONF);
if (status < 0) {
dev_dbg(&client->dev, "Can't read config? %d\n", status);
return status;
}
status = status & ~LM75_SHUTDOWN;
lm75_write_value(client, LM75_REG_CONF, status);
return 0;
}
status = status & ~LM75_SHUTDOWN;
lm75_write_value(client, LM75_REG_CONF, status);
return 0;
}
static const struct dev_pm_ops lm75_dev_pm_ops = {
.suspend = lm75_suspend,
.resume = lm75_resume,
};
static const struct dev_pm_ops lm75_dev_pm_ops = {
.suspend = lm75_suspend,
.resume = lm75_resume,
};
#define LM75_DEV_PM_OPS (&lm75_dev_pm_ops)
#else
#define LM75_DEV_PM_OPS NULL
#endif /* CONFIG_PM */
static struct i2c_driver lm75_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "dx010_lm75",
.pm = LM75_DEV_PM_OPS,
},
.probe = lm75_probe,
.remove = lm75_remove,
.id_table = lm75_ids,
static struct i2c_driver lm75_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "dx010_lm75",
.pm = LM75_DEV_PM_OPS,
},
.probe = lm75_probe,
.remove = lm75_remove,
.id_table = lm75_ids,
/*
.detect = lm75_detect,
.address_list = normal_i2c,
*/
};
};
/*-----------------------------------------------------------------------*/
@ -494,33 +498,33 @@ static struct i2c_driver lm75_driver = {
* LM75 uses a high-byte first convention, which is exactly opposite to
* the SMBus standard.
*/
static int lm75_read_value(struct i2c_client *client, u8 reg)
{
if (reg == LM75_REG_CONF)
return i2c_smbus_read_byte_data(client, reg);
else
return i2c_smbus_read_word_swapped(client, reg);
}
static int lm75_read_value(struct i2c_client *client, u8 reg)
{
if (reg == LM75_REG_CONF)
return i2c_smbus_read_byte_data(client, reg);
else
return i2c_smbus_read_word_swapped(client, reg);
}
static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value)
{
if (reg == LM75_REG_CONF)
return i2c_smbus_write_byte_data(client, reg, value);
else
return i2c_smbus_write_word_swapped(client, reg, value);
}
static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value)
{
if (reg == LM75_REG_CONF)
return i2c_smbus_write_byte_data(client, reg, value);
else
return i2c_smbus_write_word_swapped(client, reg, value);
}
static struct lm75_data *lm75_update_device(struct device *dev)
{
struct lm75_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
struct lm75_data *ret = data;
static struct lm75_data *lm75_update_device(struct device *dev)
{
struct lm75_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
struct lm75_data *ret = data;
mutex_lock(&data->update_lock);
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + data->sample_time)
|| !data->valid) {
int i;
if (time_after(jiffies, data->last_updated + data->sample_time)
|| !data->valid) {
int i;
dev_dbg(&client->dev, "Starting lm75 update\n");
for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
@ -541,7 +545,7 @@ static struct lm75_data *lm75_update_device(struct device *dev)
data->valid = 1;
}
abort:
abort:
mutex_unlock(&data->update_lock);
return ret;
}

2
platform/broadcom/sonic-platform-modules-cel/dx010/modules/lm75.h
View File

@ -46,4 +46,4 @@ static inline int LM75_TEMP_FROM_REG(u16 reg)
/* use integer division instead of equivalent right shift to
guarantee arithmetic shift and preserve the sign */
return ((s16)reg / 128) * 500;
}
}