mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
591 lines
17 KiB
591 lines
17 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
|
/*************************************************************************** |
|
* Copyright (C) 2010-2012 Hans de Goede <[email protected]> * |
|
* * |
|
***************************************************************************/ |
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
|
|
|
#include <linux/module.h> |
|
#include <linux/init.h> |
|
#include <linux/slab.h> |
|
#include <linux/jiffies.h> |
|
#include <linux/platform_device.h> |
|
#include <linux/hwmon.h> |
|
#include <linux/hwmon-sysfs.h> |
|
#include <linux/err.h> |
|
#include <linux/mutex.h> |
|
#include "sch56xx-common.h" |
|
|
|
#define DRVNAME "sch5627" |
|
#define DEVNAME DRVNAME /* We only support one model */ |
|
|
|
#define SCH5627_HWMON_ID 0xa5 |
|
#define SCH5627_COMPANY_ID 0x5c |
|
#define SCH5627_PRIMARY_ID 0xa0 |
|
|
|
#define SCH5627_REG_BUILD_CODE 0x39 |
|
#define SCH5627_REG_BUILD_ID 0x3a |
|
#define SCH5627_REG_HWMON_ID 0x3c |
|
#define SCH5627_REG_HWMON_REV 0x3d |
|
#define SCH5627_REG_COMPANY_ID 0x3e |
|
#define SCH5627_REG_PRIMARY_ID 0x3f |
|
#define SCH5627_REG_CTRL 0x40 |
|
|
|
#define SCH5627_NO_TEMPS 8 |
|
#define SCH5627_NO_FANS 4 |
|
#define SCH5627_NO_IN 5 |
|
|
|
static const u16 SCH5627_REG_TEMP_MSB[SCH5627_NO_TEMPS] = { |
|
0x2B, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x180, 0x181 }; |
|
static const u16 SCH5627_REG_TEMP_LSN[SCH5627_NO_TEMPS] = { |
|
0xE2, 0xE1, 0xE1, 0xE5, 0xE5, 0xE6, 0x182, 0x182 }; |
|
static const u16 SCH5627_REG_TEMP_HIGH_NIBBLE[SCH5627_NO_TEMPS] = { |
|
0, 0, 1, 1, 0, 0, 0, 1 }; |
|
static const u16 SCH5627_REG_TEMP_HIGH[SCH5627_NO_TEMPS] = { |
|
0x61, 0x57, 0x59, 0x5B, 0x5D, 0x5F, 0x184, 0x186 }; |
|
static const u16 SCH5627_REG_TEMP_ABS[SCH5627_NO_TEMPS] = { |
|
0x9B, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x1A8, 0x1A9 }; |
|
|
|
static const u16 SCH5627_REG_FAN[SCH5627_NO_FANS] = { |
|
0x2C, 0x2E, 0x30, 0x32 }; |
|
static const u16 SCH5627_REG_FAN_MIN[SCH5627_NO_FANS] = { |
|
0x62, 0x64, 0x66, 0x68 }; |
|
|
|
static const u16 SCH5627_REG_IN_MSB[SCH5627_NO_IN] = { |
|
0x22, 0x23, 0x24, 0x25, 0x189 }; |
|
static const u16 SCH5627_REG_IN_LSN[SCH5627_NO_IN] = { |
|
0xE4, 0xE4, 0xE3, 0xE3, 0x18A }; |
|
static const u16 SCH5627_REG_IN_HIGH_NIBBLE[SCH5627_NO_IN] = { |
|
1, 0, 1, 0, 1 }; |
|
static const u16 SCH5627_REG_IN_FACTOR[SCH5627_NO_IN] = { |
|
10745, 3660, 9765, 10745, 3660 }; |
|
static const char * const SCH5627_IN_LABELS[SCH5627_NO_IN] = { |
|
"VCC", "VTT", "VBAT", "VTR", "V_IN" }; |
|
|
|
struct sch5627_data { |
|
unsigned short addr; |
|
struct device *hwmon_dev; |
|
struct sch56xx_watchdog_data *watchdog; |
|
u8 control; |
|
u8 temp_max[SCH5627_NO_TEMPS]; |
|
u8 temp_crit[SCH5627_NO_TEMPS]; |
|
u16 fan_min[SCH5627_NO_FANS]; |
|
|
|
struct mutex update_lock; |
|
unsigned long last_battery; /* In jiffies */ |
|
char valid; /* !=0 if following fields are valid */ |
|
unsigned long last_updated; /* In jiffies */ |
|
u16 temp[SCH5627_NO_TEMPS]; |
|
u16 fan[SCH5627_NO_FANS]; |
|
u16 in[SCH5627_NO_IN]; |
|
}; |
|
|
|
static struct sch5627_data *sch5627_update_device(struct device *dev) |
|
{ |
|
struct sch5627_data *data = dev_get_drvdata(dev); |
|
struct sch5627_data *ret = data; |
|
int i, val; |
|
|
|
mutex_lock(&data->update_lock); |
|
|
|
/* Trigger a Vbat voltage measurement every 5 minutes */ |
|
if (time_after(jiffies, data->last_battery + 300 * HZ)) { |
|
sch56xx_write_virtual_reg(data->addr, SCH5627_REG_CTRL, |
|
data->control | 0x10); |
|
data->last_battery = jiffies; |
|
} |
|
|
|
/* Cache the values for 1 second */ |
|
if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { |
|
for (i = 0; i < SCH5627_NO_TEMPS; i++) { |
|
val = sch56xx_read_virtual_reg12(data->addr, |
|
SCH5627_REG_TEMP_MSB[i], |
|
SCH5627_REG_TEMP_LSN[i], |
|
SCH5627_REG_TEMP_HIGH_NIBBLE[i]); |
|
if (unlikely(val < 0)) { |
|
ret = ERR_PTR(val); |
|
goto abort; |
|
} |
|
data->temp[i] = val; |
|
} |
|
|
|
for (i = 0; i < SCH5627_NO_FANS; i++) { |
|
val = sch56xx_read_virtual_reg16(data->addr, |
|
SCH5627_REG_FAN[i]); |
|
if (unlikely(val < 0)) { |
|
ret = ERR_PTR(val); |
|
goto abort; |
|
} |
|
data->fan[i] = val; |
|
} |
|
|
|
for (i = 0; i < SCH5627_NO_IN; i++) { |
|
val = sch56xx_read_virtual_reg12(data->addr, |
|
SCH5627_REG_IN_MSB[i], |
|
SCH5627_REG_IN_LSN[i], |
|
SCH5627_REG_IN_HIGH_NIBBLE[i]); |
|
if (unlikely(val < 0)) { |
|
ret = ERR_PTR(val); |
|
goto abort; |
|
} |
|
data->in[i] = val; |
|
} |
|
|
|
data->last_updated = jiffies; |
|
data->valid = 1; |
|
} |
|
abort: |
|
mutex_unlock(&data->update_lock); |
|
return ret; |
|
} |
|
|
|
static int sch5627_read_limits(struct sch5627_data *data) |
|
{ |
|
int i, val; |
|
|
|
for (i = 0; i < SCH5627_NO_TEMPS; i++) { |
|
/* |
|
* Note what SMSC calls ABS, is what lm_sensors calls max |
|
* (aka high), and HIGH is what lm_sensors calls crit. |
|
*/ |
|
val = sch56xx_read_virtual_reg(data->addr, |
|
SCH5627_REG_TEMP_ABS[i]); |
|
if (val < 0) |
|
return val; |
|
data->temp_max[i] = val; |
|
|
|
val = sch56xx_read_virtual_reg(data->addr, |
|
SCH5627_REG_TEMP_HIGH[i]); |
|
if (val < 0) |
|
return val; |
|
data->temp_crit[i] = val; |
|
} |
|
for (i = 0; i < SCH5627_NO_FANS; i++) { |
|
val = sch56xx_read_virtual_reg16(data->addr, |
|
SCH5627_REG_FAN_MIN[i]); |
|
if (val < 0) |
|
return val; |
|
data->fan_min[i] = val; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int reg_to_temp(u16 reg) |
|
{ |
|
return (reg * 625) / 10 - 64000; |
|
} |
|
|
|
static int reg_to_temp_limit(u8 reg) |
|
{ |
|
return (reg - 64) * 1000; |
|
} |
|
|
|
static int reg_to_rpm(u16 reg) |
|
{ |
|
if (reg == 0) |
|
return -EIO; |
|
if (reg == 0xffff) |
|
return 0; |
|
|
|
return 5400540 / reg; |
|
} |
|
|
|
static ssize_t name_show(struct device *dev, struct device_attribute *devattr, |
|
char *buf) |
|
{ |
|
return snprintf(buf, PAGE_SIZE, "%s\n", DEVNAME); |
|
} |
|
|
|
static ssize_t temp_show(struct device *dev, struct device_attribute *devattr, |
|
char *buf) |
|
{ |
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
|
struct sch5627_data *data = sch5627_update_device(dev); |
|
int val; |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
val = reg_to_temp(data->temp[attr->index]); |
|
return snprintf(buf, PAGE_SIZE, "%d\n", val); |
|
} |
|
|
|
static ssize_t temp_fault_show(struct device *dev, |
|
struct device_attribute *devattr, char *buf) |
|
{ |
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
|
struct sch5627_data *data = sch5627_update_device(dev); |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", data->temp[attr->index] == 0); |
|
} |
|
|
|
static ssize_t temp_max_show(struct device *dev, |
|
struct device_attribute *devattr, char *buf) |
|
{ |
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
|
struct sch5627_data *data = dev_get_drvdata(dev); |
|
int val; |
|
|
|
val = reg_to_temp_limit(data->temp_max[attr->index]); |
|
return snprintf(buf, PAGE_SIZE, "%d\n", val); |
|
} |
|
|
|
static ssize_t temp_crit_show(struct device *dev, |
|
struct device_attribute *devattr, char *buf) |
|
{ |
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
|
struct sch5627_data *data = dev_get_drvdata(dev); |
|
int val; |
|
|
|
val = reg_to_temp_limit(data->temp_crit[attr->index]); |
|
return snprintf(buf, PAGE_SIZE, "%d\n", val); |
|
} |
|
|
|
static ssize_t fan_show(struct device *dev, struct device_attribute *devattr, |
|
char *buf) |
|
{ |
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
|
struct sch5627_data *data = sch5627_update_device(dev); |
|
int val; |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
val = reg_to_rpm(data->fan[attr->index]); |
|
if (val < 0) |
|
return val; |
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", val); |
|
} |
|
|
|
static ssize_t fan_fault_show(struct device *dev, |
|
struct device_attribute *devattr, char *buf) |
|
{ |
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
|
struct sch5627_data *data = sch5627_update_device(dev); |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", |
|
data->fan[attr->index] == 0xffff); |
|
} |
|
|
|
static ssize_t fan_min_show(struct device *dev, |
|
struct device_attribute *devattr, char *buf) |
|
{ |
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
|
struct sch5627_data *data = dev_get_drvdata(dev); |
|
int val = reg_to_rpm(data->fan_min[attr->index]); |
|
if (val < 0) |
|
return val; |
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", val); |
|
} |
|
|
|
static ssize_t in_show(struct device *dev, struct device_attribute *devattr, |
|
char *buf) |
|
{ |
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
|
struct sch5627_data *data = sch5627_update_device(dev); |
|
int val; |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
val = DIV_ROUND_CLOSEST( |
|
data->in[attr->index] * SCH5627_REG_IN_FACTOR[attr->index], |
|
10000); |
|
return snprintf(buf, PAGE_SIZE, "%d\n", val); |
|
} |
|
|
|
static ssize_t in_label_show(struct device *dev, |
|
struct device_attribute *devattr, char *buf) |
|
{ |
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
|
|
|
return snprintf(buf, PAGE_SIZE, "%s\n", |
|
SCH5627_IN_LABELS[attr->index]); |
|
} |
|
|
|
static DEVICE_ATTR_RO(name); |
|
static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); |
|
static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); |
|
static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); |
|
static SENSOR_DEVICE_ATTR_RO(temp4_input, temp, 3); |
|
static SENSOR_DEVICE_ATTR_RO(temp5_input, temp, 4); |
|
static SENSOR_DEVICE_ATTR_RO(temp6_input, temp, 5); |
|
static SENSOR_DEVICE_ATTR_RO(temp7_input, temp, 6); |
|
static SENSOR_DEVICE_ATTR_RO(temp8_input, temp, 7); |
|
static SENSOR_DEVICE_ATTR_RO(temp1_fault, temp_fault, 0); |
|
static SENSOR_DEVICE_ATTR_RO(temp2_fault, temp_fault, 1); |
|
static SENSOR_DEVICE_ATTR_RO(temp3_fault, temp_fault, 2); |
|
static SENSOR_DEVICE_ATTR_RO(temp4_fault, temp_fault, 3); |
|
static SENSOR_DEVICE_ATTR_RO(temp5_fault, temp_fault, 4); |
|
static SENSOR_DEVICE_ATTR_RO(temp6_fault, temp_fault, 5); |
|
static SENSOR_DEVICE_ATTR_RO(temp7_fault, temp_fault, 6); |
|
static SENSOR_DEVICE_ATTR_RO(temp8_fault, temp_fault, 7); |
|
static SENSOR_DEVICE_ATTR_RO(temp1_max, temp_max, 0); |
|
static SENSOR_DEVICE_ATTR_RO(temp2_max, temp_max, 1); |
|
static SENSOR_DEVICE_ATTR_RO(temp3_max, temp_max, 2); |
|
static SENSOR_DEVICE_ATTR_RO(temp4_max, temp_max, 3); |
|
static SENSOR_DEVICE_ATTR_RO(temp5_max, temp_max, 4); |
|
static SENSOR_DEVICE_ATTR_RO(temp6_max, temp_max, 5); |
|
static SENSOR_DEVICE_ATTR_RO(temp7_max, temp_max, 6); |
|
static SENSOR_DEVICE_ATTR_RO(temp8_max, temp_max, 7); |
|
static SENSOR_DEVICE_ATTR_RO(temp1_crit, temp_crit, 0); |
|
static SENSOR_DEVICE_ATTR_RO(temp2_crit, temp_crit, 1); |
|
static SENSOR_DEVICE_ATTR_RO(temp3_crit, temp_crit, 2); |
|
static SENSOR_DEVICE_ATTR_RO(temp4_crit, temp_crit, 3); |
|
static SENSOR_DEVICE_ATTR_RO(temp5_crit, temp_crit, 4); |
|
static SENSOR_DEVICE_ATTR_RO(temp6_crit, temp_crit, 5); |
|
static SENSOR_DEVICE_ATTR_RO(temp7_crit, temp_crit, 6); |
|
static SENSOR_DEVICE_ATTR_RO(temp8_crit, temp_crit, 7); |
|
|
|
static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0); |
|
static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1); |
|
static SENSOR_DEVICE_ATTR_RO(fan3_input, fan, 2); |
|
static SENSOR_DEVICE_ATTR_RO(fan4_input, fan, 3); |
|
static SENSOR_DEVICE_ATTR_RO(fan1_fault, fan_fault, 0); |
|
static SENSOR_DEVICE_ATTR_RO(fan2_fault, fan_fault, 1); |
|
static SENSOR_DEVICE_ATTR_RO(fan3_fault, fan_fault, 2); |
|
static SENSOR_DEVICE_ATTR_RO(fan4_fault, fan_fault, 3); |
|
static SENSOR_DEVICE_ATTR_RO(fan1_min, fan_min, 0); |
|
static SENSOR_DEVICE_ATTR_RO(fan2_min, fan_min, 1); |
|
static SENSOR_DEVICE_ATTR_RO(fan3_min, fan_min, 2); |
|
static SENSOR_DEVICE_ATTR_RO(fan4_min, fan_min, 3); |
|
|
|
static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0); |
|
static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1); |
|
static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2); |
|
static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3); |
|
static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4); |
|
static SENSOR_DEVICE_ATTR_RO(in0_label, in_label, 0); |
|
static SENSOR_DEVICE_ATTR_RO(in1_label, in_label, 1); |
|
static SENSOR_DEVICE_ATTR_RO(in2_label, in_label, 2); |
|
static SENSOR_DEVICE_ATTR_RO(in3_label, in_label, 3); |
|
|
|
static struct attribute *sch5627_attributes[] = { |
|
&dev_attr_name.attr, |
|
|
|
&sensor_dev_attr_temp1_input.dev_attr.attr, |
|
&sensor_dev_attr_temp2_input.dev_attr.attr, |
|
&sensor_dev_attr_temp3_input.dev_attr.attr, |
|
&sensor_dev_attr_temp4_input.dev_attr.attr, |
|
&sensor_dev_attr_temp5_input.dev_attr.attr, |
|
&sensor_dev_attr_temp6_input.dev_attr.attr, |
|
&sensor_dev_attr_temp7_input.dev_attr.attr, |
|
&sensor_dev_attr_temp8_input.dev_attr.attr, |
|
&sensor_dev_attr_temp1_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp2_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp3_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp4_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp5_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp6_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp7_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp8_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp1_max.dev_attr.attr, |
|
&sensor_dev_attr_temp2_max.dev_attr.attr, |
|
&sensor_dev_attr_temp3_max.dev_attr.attr, |
|
&sensor_dev_attr_temp4_max.dev_attr.attr, |
|
&sensor_dev_attr_temp5_max.dev_attr.attr, |
|
&sensor_dev_attr_temp6_max.dev_attr.attr, |
|
&sensor_dev_attr_temp7_max.dev_attr.attr, |
|
&sensor_dev_attr_temp8_max.dev_attr.attr, |
|
&sensor_dev_attr_temp1_crit.dev_attr.attr, |
|
&sensor_dev_attr_temp2_crit.dev_attr.attr, |
|
&sensor_dev_attr_temp3_crit.dev_attr.attr, |
|
&sensor_dev_attr_temp4_crit.dev_attr.attr, |
|
&sensor_dev_attr_temp5_crit.dev_attr.attr, |
|
&sensor_dev_attr_temp6_crit.dev_attr.attr, |
|
&sensor_dev_attr_temp7_crit.dev_attr.attr, |
|
&sensor_dev_attr_temp8_crit.dev_attr.attr, |
|
|
|
&sensor_dev_attr_fan1_input.dev_attr.attr, |
|
&sensor_dev_attr_fan2_input.dev_attr.attr, |
|
&sensor_dev_attr_fan3_input.dev_attr.attr, |
|
&sensor_dev_attr_fan4_input.dev_attr.attr, |
|
&sensor_dev_attr_fan1_fault.dev_attr.attr, |
|
&sensor_dev_attr_fan2_fault.dev_attr.attr, |
|
&sensor_dev_attr_fan3_fault.dev_attr.attr, |
|
&sensor_dev_attr_fan4_fault.dev_attr.attr, |
|
&sensor_dev_attr_fan1_min.dev_attr.attr, |
|
&sensor_dev_attr_fan2_min.dev_attr.attr, |
|
&sensor_dev_attr_fan3_min.dev_attr.attr, |
|
&sensor_dev_attr_fan4_min.dev_attr.attr, |
|
|
|
&sensor_dev_attr_in0_input.dev_attr.attr, |
|
&sensor_dev_attr_in1_input.dev_attr.attr, |
|
&sensor_dev_attr_in2_input.dev_attr.attr, |
|
&sensor_dev_attr_in3_input.dev_attr.attr, |
|
&sensor_dev_attr_in4_input.dev_attr.attr, |
|
&sensor_dev_attr_in0_label.dev_attr.attr, |
|
&sensor_dev_attr_in1_label.dev_attr.attr, |
|
&sensor_dev_attr_in2_label.dev_attr.attr, |
|
&sensor_dev_attr_in3_label.dev_attr.attr, |
|
/* No in4_label as in4 is a generic input pin */ |
|
|
|
NULL |
|
}; |
|
|
|
static const struct attribute_group sch5627_group = { |
|
.attrs = sch5627_attributes, |
|
}; |
|
|
|
static int sch5627_remove(struct platform_device *pdev) |
|
{ |
|
struct sch5627_data *data = platform_get_drvdata(pdev); |
|
|
|
if (data->watchdog) |
|
sch56xx_watchdog_unregister(data->watchdog); |
|
|
|
if (data->hwmon_dev) |
|
hwmon_device_unregister(data->hwmon_dev); |
|
|
|
sysfs_remove_group(&pdev->dev.kobj, &sch5627_group); |
|
|
|
return 0; |
|
} |
|
|
|
static int sch5627_probe(struct platform_device *pdev) |
|
{ |
|
struct sch5627_data *data; |
|
int err, build_code, build_id, hwmon_rev, val; |
|
|
|
data = devm_kzalloc(&pdev->dev, sizeof(struct sch5627_data), |
|
GFP_KERNEL); |
|
if (!data) |
|
return -ENOMEM; |
|
|
|
data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; |
|
mutex_init(&data->update_lock); |
|
platform_set_drvdata(pdev, data); |
|
|
|
val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_HWMON_ID); |
|
if (val < 0) { |
|
err = val; |
|
goto error; |
|
} |
|
if (val != SCH5627_HWMON_ID) { |
|
pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "hwmon", |
|
val, SCH5627_HWMON_ID); |
|
err = -ENODEV; |
|
goto error; |
|
} |
|
|
|
val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_COMPANY_ID); |
|
if (val < 0) { |
|
err = val; |
|
goto error; |
|
} |
|
if (val != SCH5627_COMPANY_ID) { |
|
pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "company", |
|
val, SCH5627_COMPANY_ID); |
|
err = -ENODEV; |
|
goto error; |
|
} |
|
|
|
val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_PRIMARY_ID); |
|
if (val < 0) { |
|
err = val; |
|
goto error; |
|
} |
|
if (val != SCH5627_PRIMARY_ID) { |
|
pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "primary", |
|
val, SCH5627_PRIMARY_ID); |
|
err = -ENODEV; |
|
goto error; |
|
} |
|
|
|
build_code = sch56xx_read_virtual_reg(data->addr, |
|
SCH5627_REG_BUILD_CODE); |
|
if (build_code < 0) { |
|
err = build_code; |
|
goto error; |
|
} |
|
|
|
build_id = sch56xx_read_virtual_reg16(data->addr, |
|
SCH5627_REG_BUILD_ID); |
|
if (build_id < 0) { |
|
err = build_id; |
|
goto error; |
|
} |
|
|
|
hwmon_rev = sch56xx_read_virtual_reg(data->addr, |
|
SCH5627_REG_HWMON_REV); |
|
if (hwmon_rev < 0) { |
|
err = hwmon_rev; |
|
goto error; |
|
} |
|
|
|
val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_CTRL); |
|
if (val < 0) { |
|
err = val; |
|
goto error; |
|
} |
|
data->control = val; |
|
if (!(data->control & 0x01)) { |
|
pr_err("hardware monitoring not enabled\n"); |
|
err = -ENODEV; |
|
goto error; |
|
} |
|
/* Trigger a Vbat voltage measurement, so that we get a valid reading |
|
the first time we read Vbat */ |
|
sch56xx_write_virtual_reg(data->addr, SCH5627_REG_CTRL, |
|
data->control | 0x10); |
|
data->last_battery = jiffies; |
|
|
|
/* |
|
* Read limits, we do this only once as reading a register on |
|
* the sch5627 is quite expensive (and they don't change). |
|
*/ |
|
err = sch5627_read_limits(data); |
|
if (err) |
|
goto error; |
|
|
|
pr_info("found %s chip at %#hx\n", DEVNAME, data->addr); |
|
pr_info("firmware build: code 0x%02X, id 0x%04X, hwmon: rev 0x%02X\n", |
|
build_code, build_id, hwmon_rev); |
|
|
|
/* Register sysfs interface files */ |
|
err = sysfs_create_group(&pdev->dev.kobj, &sch5627_group); |
|
if (err) |
|
goto error; |
|
|
|
data->hwmon_dev = hwmon_device_register(&pdev->dev); |
|
if (IS_ERR(data->hwmon_dev)) { |
|
err = PTR_ERR(data->hwmon_dev); |
|
data->hwmon_dev = NULL; |
|
goto error; |
|
} |
|
|
|
/* Note failing to register the watchdog is not a fatal error */ |
|
data->watchdog = sch56xx_watchdog_register(&pdev->dev, data->addr, |
|
(build_code << 24) | (build_id << 8) | hwmon_rev, |
|
&data->update_lock, 1); |
|
|
|
return 0; |
|
|
|
error: |
|
sch5627_remove(pdev); |
|
return err; |
|
} |
|
|
|
static struct platform_driver sch5627_driver = { |
|
.driver = { |
|
.name = DRVNAME, |
|
}, |
|
.probe = sch5627_probe, |
|
.remove = sch5627_remove, |
|
}; |
|
|
|
module_platform_driver(sch5627_driver); |
|
|
|
MODULE_DESCRIPTION("SMSC SCH5627 Hardware Monitoring Driver"); |
|
MODULE_AUTHOR("Hans de Goede <[email protected]>"); |
|
MODULE_LICENSE("GPL");
|
|
|