aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/hwmon/w83781d.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/hwmon/w83781d.c')
-rw-r--r--drivers/hwmon/w83781d.c475
1 files changed, 277 insertions, 198 deletions
diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c
index 17a8fa2d9ae9..b03d54a799e3 100644
--- a/drivers/hwmon/w83781d.c
+++ b/drivers/hwmon/w83781d.c
@@ -1,37 +1,37 @@
/*
- w83781d.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring
- Copyright (c) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
- Philip Edelbrock <phil@netroedge.com>,
- and Mark Studebaker <mdsxyz123@yahoo.com>
- Copyright (c) 2007 - 2008 Jean Delvare <khali@linux-fr.org>
-
- 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.
-*/
+ * w83781d.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (c) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
+ * Philip Edelbrock <phil@netroedge.com>,
+ * and Mark Studebaker <mdsxyz123@yahoo.com>
+ * Copyright (c) 2007 - 2008 Jean Delvare <khali@linux-fr.org>
+ *
+ * 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.
+ */
/*
- Supports following chips:
-
- Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
- as99127f 7 3 0 3 0x31 0x12c3 yes no
- as99127f rev.2 (type_name = as99127f) 0x31 0x5ca3 yes no
- w83781d 7 3 0 3 0x10-1 0x5ca3 yes yes
- w83782d 9 3 2-4 3 0x30 0x5ca3 yes yes
- w83783s 5-6 3 2 1-2 0x40 0x5ca3 yes no
-
-*/
+ * Supports following chips:
+ *
+ * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
+ * as99127f 7 3 0 3 0x31 0x12c3 yes no
+ * as99127f rev.2 (type_name = as99127f) 0x31 0x5ca3 yes no
+ * w83781d 7 3 0 3 0x10-1 0x5ca3 yes yes
+ * w83782d 9 3 2-4 3 0x30 0x5ca3 yes yes
+ * w83783s 5-6 3 2 1-2 0x40 0x5ca3 yes no
+ *
+ */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -145,8 +145,10 @@ static const u8 W83781D_REG_PWM[] = { 0x5B, 0x5A, 0x5E, 0x5F };
#define W83781D_REG_I2C_ADDR 0x48
#define W83781D_REG_I2C_SUBADDR 0x4A
-/* The following are undocumented in the data sheets however we
- received the information in an email from Winbond tech support */
+/*
+ * The following are undocumented in the data sheets however we
+ * received the information in an email from Winbond tech support
+ */
/* Sensor selection - not on 781d */
#define W83781D_REG_SCFG1 0x5D
static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
@@ -182,9 +184,9 @@ FAN_FROM_REG(u8 val, int div)
#define TEMP_TO_REG(val) SENSORS_LIMIT((val) / 1000, -127, 128)
#define TEMP_FROM_REG(val) ((val) * 1000)
-#define BEEP_MASK_FROM_REG(val,type) ((type) == as99127f ? \
+#define BEEP_MASK_FROM_REG(val, type) ((type) == as99127f ? \
(~(val)) & 0x7fff : (val) & 0xff7fff)
-#define BEEP_MASK_TO_REG(val,type) ((type) == as99127f ? \
+#define BEEP_MASK_TO_REG(val, type) ((type) == as99127f ? \
(~(val)) & 0x7fff : (val) & 0xff7fff)
#define DIV_FROM_REG(val) (1 << (val))
@@ -238,9 +240,11 @@ struct w83781d_data {
u32 beep_mask; /* Register encoding, combined */
u8 pwm[4]; /* Register value */
u8 pwm2_enable; /* Boolean */
- u16 sens[3]; /* 782D/783S only.
- 1 = pentium diode; 2 = 3904 diode;
- 4 = thermistor */
+ u16 sens[3]; /*
+ * 782D/783S only.
+ * 1 = pentium diode; 2 = 3904 diode;
+ * 4 = thermistor
+ */
u8 vrm;
};
@@ -254,7 +258,7 @@ static void w83781d_init_device(struct device *dev);
/* following are the sysfs callback functions */
#define show_in_reg(reg) \
-static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *da, \
char *buf) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
@@ -267,20 +271,21 @@ show_in_reg(in_min);
show_in_reg(in_max);
#define store_in_reg(REG, reg) \
-static ssize_t store_in_##reg (struct device *dev, struct device_attribute \
+static ssize_t store_in_##reg(struct device *dev, struct device_attribute \
*da, const char *buf, size_t count) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = dev_get_drvdata(dev); \
int nr = attr->index; \
- u32 val; \
- \
- val = simple_strtoul(buf, NULL, 10); \
- \
+ unsigned long val; \
+ int err = kstrtoul(buf, 10, &val); \
+ if (err) \
+ return err; \
mutex_lock(&data->update_lock); \
data->in_##reg[nr] = IN_TO_REG(val); \
- w83781d_write_value(data, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \
- \
+ w83781d_write_value(data, W83781D_REG_IN_##REG(nr), \
+ data->in_##reg[nr]); \
+ \
mutex_unlock(&data->update_lock); \
return count; \
}
@@ -306,12 +311,12 @@ sysfs_in_offsets(7);
sysfs_in_offsets(8);
#define show_fan_reg(reg) \
-static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *da, \
char *buf) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = w83781d_update_device(dev); \
- return sprintf(buf,"%ld\n", \
+ return sprintf(buf, "%ld\n", \
FAN_FROM_REG(data->reg[attr->index], \
DIV_FROM_REG(data->fan_div[attr->index]))); \
}
@@ -325,9 +330,12 @@ store_fan_min(struct device *dev, struct device_attribute *da,
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = dev_get_drvdata(dev);
int nr = attr->index;
- u32 val;
+ unsigned long val;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->fan_min[nr] =
@@ -350,17 +358,17 @@ static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR,
show_fan_min, store_fan_min, 2);
#define show_temp_reg(reg) \
-static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *da, \
char *buf) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = w83781d_update_device(dev); \
int nr = attr->index; \
if (nr >= 2) { /* TEMP2 and TEMP3 */ \
- return sprintf(buf,"%d\n", \
+ return sprintf(buf, "%d\n", \
LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \
} else { /* TEMP1 */ \
- return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \
+ return sprintf(buf, "%ld\n", (long)TEMP_FROM_REG(data->reg)); \
} \
}
show_temp_reg(temp);
@@ -368,16 +376,16 @@ show_temp_reg(temp_max);
show_temp_reg(temp_max_hyst);
#define store_temp_reg(REG, reg) \
-static ssize_t store_temp_##reg (struct device *dev, \
+static ssize_t store_temp_##reg(struct device *dev, \
struct device_attribute *da, const char *buf, size_t count) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = dev_get_drvdata(dev); \
int nr = attr->index; \
long val; \
- \
- val = simple_strtol(buf, NULL, 10); \
- \
+ int err = kstrtol(buf, 10, &val); \
+ if (err) \
+ return err; \
mutex_lock(&data->update_lock); \
\
if (nr >= 2) { /* TEMP2 and TEMP3 */ \
@@ -425,13 +433,17 @@ show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
}
static ssize_t
-store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+store_vrm_reg(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct w83781d_data *data = dev_get_drvdata(dev);
- u32 val;
+ unsigned long val;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
- data->vrm = val;
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+ data->vrm = SENSORS_LIMIT(val, 0, 255);
return count;
}
@@ -480,7 +492,8 @@ static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_temp3_alarm, NULL, 0);
-static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_beep_mask(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct w83781d_data *data = w83781d_update_device(dev);
return sprintf(buf, "%ld\n",
@@ -492,9 +505,12 @@ store_beep_mask(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct w83781d_data *data = dev_get_drvdata(dev);
- u32 val;
+ unsigned long val;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->beep_mask &= 0x8000; /* preserve beep enable */
@@ -529,10 +545,14 @@ store_beep(struct device *dev, struct device_attribute *attr,
{
struct w83781d_data *data = dev_get_drvdata(dev);
int bitnr = to_sensor_dev_attr(attr)->index;
- unsigned long bit;
u8 reg;
+ unsigned long bit;
+ int err;
+
+ err = kstrtoul(buf, 10, &bit);
+ if (err)
+ return err;
- bit = simple_strtoul(buf, NULL, 10);
if (bit & ~1)
return -EINVAL;
@@ -620,10 +640,12 @@ show_fan_div(struct device *dev, struct device_attribute *da, char *buf)
(long) DIV_FROM_REG(data->fan_div[attr->index]));
}
-/* Note: we save and restore the fan minimum here, because its value is
- determined in part by the fan divisor. This follows the principle of
- least surprise; the user doesn't expect the fan minimum to change just
- because the divisor changed. */
+/*
+ * Note: we save and restore the fan minimum here, because its value is
+ * determined in part by the fan divisor. This follows the principle of
+ * least surprise; the user doesn't expect the fan minimum to change just
+ * because the divisor changed.
+ */
static ssize_t
store_fan_div(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
@@ -633,7 +655,12 @@ store_fan_div(struct device *dev, struct device_attribute *da,
unsigned long min;
int nr = attr->index;
u8 reg;
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
@@ -643,10 +670,12 @@ store_fan_div(struct device *dev, struct device_attribute *da,
data->fan_div[nr] = DIV_TO_REG(val, data->type);
- reg = (w83781d_read_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
- & (nr==0 ? 0xcf : 0x3f))
- | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
- w83781d_write_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
+ reg = (w83781d_read_value(data, nr == 2 ?
+ W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
+ & (nr == 0 ? 0xcf : 0x3f))
+ | ((data->fan_div[nr] & 0x03) << (nr == 0 ? 4 : 6));
+ w83781d_write_value(data, nr == 2 ?
+ W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
/* w83781d and as99127f don't have extended divisor bits */
if (data->type != w83781d && data->type != as99127f) {
@@ -693,9 +722,12 @@ store_pwm(struct device *dev, struct device_attribute *da, const char *buf,
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = dev_get_drvdata(dev);
int nr = attr->index;
- u32 val;
+ unsigned long val;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
@@ -709,9 +741,13 @@ store_pwm2_enable(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
struct w83781d_data *data = dev_get_drvdata(dev);
- u32 val, reg;
+ unsigned long val;
+ u32 reg;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
@@ -761,9 +797,13 @@ store_sensor(struct device *dev, struct device_attribute *da,
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = dev_get_drvdata(dev);
int nr = attr->index;
- u32 val, tmp;
+ unsigned long val;
+ u32 tmp;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
@@ -813,7 +853,8 @@ static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR,
show_sensor, store_sensor, 2);
-/* Assumes that adapter is of I2C, not ISA variety.
+/*
+ * Assumes that adapter is of I2C, not ISA variety.
* OTHERWISE DON'T CALL THIS
*/
static int
@@ -911,7 +952,7 @@ ERROR_SC_1:
&sensor_dev_attr_temp##X##_alarm.dev_attr.attr, \
&sensor_dev_attr_temp##X##_beep.dev_attr.attr
-static struct attribute* w83781d_attributes[] = {
+static struct attribute *w83781d_attributes[] = {
IN_UNIT_ATTRS(0),
IN_UNIT_ATTRS(2),
IN_UNIT_ATTRS(3),
@@ -934,23 +975,58 @@ static const struct attribute_group w83781d_group = {
.attrs = w83781d_attributes,
};
-static struct attribute *w83781d_attributes_opt[] = {
+static struct attribute *w83781d_attributes_in1[] = {
IN_UNIT_ATTRS(1),
+ NULL
+};
+static const struct attribute_group w83781d_group_in1 = {
+ .attrs = w83781d_attributes_in1,
+};
+
+static struct attribute *w83781d_attributes_in78[] = {
IN_UNIT_ATTRS(7),
IN_UNIT_ATTRS(8),
+ NULL
+};
+static const struct attribute_group w83781d_group_in78 = {
+ .attrs = w83781d_attributes_in78,
+};
+
+static struct attribute *w83781d_attributes_temp3[] = {
TEMP_UNIT_ATTRS(3),
+ NULL
+};
+static const struct attribute_group w83781d_group_temp3 = {
+ .attrs = w83781d_attributes_temp3,
+};
+
+static struct attribute *w83781d_attributes_pwm12[] = {
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
+ &dev_attr_pwm2_enable.attr,
+ NULL
+};
+static const struct attribute_group w83781d_group_pwm12 = {
+ .attrs = w83781d_attributes_pwm12,
+};
+
+static struct attribute *w83781d_attributes_pwm34[] = {
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm4.dev_attr.attr,
- &dev_attr_pwm2_enable.attr,
+ NULL
+};
+static const struct attribute_group w83781d_group_pwm34 = {
+ .attrs = w83781d_attributes_pwm34,
+};
+
+static struct attribute *w83781d_attributes_other[] = {
&sensor_dev_attr_temp1_type.dev_attr.attr,
&sensor_dev_attr_temp2_type.dev_attr.attr,
&sensor_dev_attr_temp3_type.dev_attr.attr,
NULL
};
-static const struct attribute_group w83781d_group_opt = {
- .attrs = w83781d_attributes_opt,
+static const struct attribute_group w83781d_group_other = {
+ .attrs = w83781d_attributes_other,
};
/* No clean up is done on error, it's up to the caller */
@@ -959,56 +1035,23 @@ w83781d_create_files(struct device *dev, int kind, int is_isa)
{
int err;
- if ((err = sysfs_create_group(&dev->kobj, &w83781d_group)))
+ err = sysfs_create_group(&dev->kobj, &w83781d_group);
+ if (err)
return err;
if (kind != w83783s) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_in1_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in1_min.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in1_max.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in1_alarm.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in1_beep.dev_attr)))
+ err = sysfs_create_group(&dev->kobj, &w83781d_group_in1);
+ if (err)
return err;
}
if (kind != as99127f && kind != w83781d && kind != w83783s) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_in7_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in7_min.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in7_max.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in7_alarm.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in7_beep.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in8_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in8_min.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in8_max.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in8_alarm.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_in8_beep.dev_attr)))
+ err = sysfs_create_group(&dev->kobj, &w83781d_group_in78);
+ if (err)
return err;
}
if (kind != w83783s) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_temp3_input.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_temp3_max.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_temp3_max_hyst.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_temp3_alarm.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_temp3_beep.dev_attr)))
+ err = sysfs_create_group(&dev->kobj, &w83781d_group_temp3);
+ if (err)
return err;
if (kind != w83781d) {
@@ -1021,30 +1064,29 @@ w83781d_create_files(struct device *dev, int kind, int is_isa)
}
if (kind != w83781d && kind != as99127f) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_pwm1.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm2.dev_attr))
- || (err = device_create_file(dev, &dev_attr_pwm2_enable)))
+ err = sysfs_create_group(&dev->kobj, &w83781d_group_pwm12);
+ if (err)
return err;
}
if (kind == w83782d && !is_isa) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_pwm3.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm4.dev_attr)))
+ err = sysfs_create_group(&dev->kobj, &w83781d_group_pwm34);
+ if (err)
return err;
}
if (kind != as99127f && kind != w83781d) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_temp1_type.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_temp2_type.dev_attr)))
+ err = device_create_file(dev,
+ &sensor_dev_attr_temp1_type.dev_attr);
+ if (err)
+ return err;
+ err = device_create_file(dev,
+ &sensor_dev_attr_temp2_type.dev_attr);
+ if (err)
return err;
if (kind != w83783s) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_temp3_type.dev_attr)))
+ err = device_create_file(dev,
+ &sensor_dev_attr_temp3_type.dev_attr);
+ if (err)
return err;
}
}
@@ -1066,9 +1108,11 @@ w83781d_detect(struct i2c_client *client, struct i2c_board_info *info)
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
- /* We block updates of the ISA device to minimize the risk of
- concurrent access to the same W83781D chip through different
- interfaces. */
+ /*
+ * We block updates of the ISA device to minimize the risk of
+ * concurrent access to the same W83781D chip through different
+ * interfaces.
+ */
if (isa)
mutex_lock(&isa->update_lock);
@@ -1083,15 +1127,17 @@ w83781d_detect(struct i2c_client *client, struct i2c_board_info *info)
/* Check for Winbond or Asus ID if in bank 0 */
if (!(val1 & 0x07) &&
((!(val1 & 0x80) && val2 != 0xa3 && val2 != 0xc3) ||
- ( (val1 & 0x80) && val2 != 0x5c && val2 != 0x12))) {
+ ((val1 & 0x80) && val2 != 0x5c && val2 != 0x12))) {
dev_dbg(&adapter->dev,
"Detection of w83781d chip failed at step 4\n");
goto err_nodev;
}
- /* If Winbond SMBus, check address at 0x48.
- Asus doesn't support, except for as99127f rev.2 */
+ /*
+ * If Winbond SMBus, check address at 0x48.
+ * Asus doesn't support, except for as99127f rev.2
+ */
if ((!(val1 & 0x80) && val2 == 0xa3) ||
- ( (val1 & 0x80) && val2 == 0x5c)) {
+ ((val1 & 0x80) && val2 == 0x5c)) {
if (i2c_smbus_read_byte_data(client, W83781D_REG_I2C_ADDR)
!= address) {
dev_dbg(&adapter->dev,
@@ -1149,6 +1195,17 @@ w83781d_detect(struct i2c_client *client, struct i2c_board_info *info)
return -ENODEV;
}
+static void w83781d_remove_files(struct device *dev)
+{
+ sysfs_remove_group(&dev->kobj, &w83781d_group);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_in1);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_in78);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_temp3);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_pwm12);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_pwm34);
+ sysfs_remove_group(&dev->kobj, &w83781d_group_other);
+}
+
static int
w83781d_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
@@ -1191,9 +1248,7 @@ w83781d_probe(struct i2c_client *client, const struct i2c_device_id *id)
return 0;
ERROR4:
- sysfs_remove_group(&dev->kobj, &w83781d_group);
- sysfs_remove_group(&dev->kobj, &w83781d_group_opt);
-
+ w83781d_remove_files(dev);
if (data->lm75[0])
i2c_unregister_device(data->lm75[0]);
if (data->lm75[1])
@@ -1211,9 +1266,7 @@ w83781d_remove(struct i2c_client *client)
struct device *dev = &client->dev;
hwmon_device_unregister(data->hwmon_dev);
-
- sysfs_remove_group(&dev->kobj, &w83781d_group);
- sysfs_remove_group(&dev->kobj, &w83781d_group_opt);
+ w83781d_remove_files(dev);
if (data->lm75[0])
i2c_unregister_device(data->lm75[0]);
@@ -1310,35 +1363,47 @@ w83781d_init_device(struct device *dev)
int type = data->type;
u8 tmp;
- if (reset && type != as99127f) { /* this resets registers we don't have
- documentation for on the as99127f */
- /* Resetting the chip has been the default for a long time,
- but it causes the BIOS initializations (fan clock dividers,
- thermal sensor types...) to be lost, so it is now optional.
- It might even go away if nobody reports it as being useful,
- as I see very little reason why this would be needed at
- all. */
+ if (reset && type != as99127f) { /*
+ * this resets registers we don't have
+ * documentation for on the as99127f
+ */
+ /*
+ * Resetting the chip has been the default for a long time,
+ * but it causes the BIOS initializations (fan clock dividers,
+ * thermal sensor types...) to be lost, so it is now optional.
+ * It might even go away if nobody reports it as being useful,
+ * as I see very little reason why this would be needed at
+ * all.
+ */
dev_info(dev, "If reset=1 solved a problem you were "
"having, please report!\n");
/* save these registers */
i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG);
p = w83781d_read_value(data, W83781D_REG_PWMCLK12);
- /* Reset all except Watchdog values and last conversion values
- This sets fan-divs to 2, among others */
+ /*
+ * Reset all except Watchdog values and last conversion values
+ * This sets fan-divs to 2, among others
+ */
w83781d_write_value(data, W83781D_REG_CONFIG, 0x80);
- /* Restore the registers and disable power-on abnormal beep.
- This saves FAN 1/2/3 input/output values set by BIOS. */
+ /*
+ * Restore the registers and disable power-on abnormal beep.
+ * This saves FAN 1/2/3 input/output values set by BIOS.
+ */
w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, i | 0x80);
w83781d_write_value(data, W83781D_REG_PWMCLK12, p);
- /* Disable master beep-enable (reset turns it on).
- Individual beep_mask should be reset to off but for some reason
- disabling this bit helps some people not get beeped */
+ /*
+ * Disable master beep-enable (reset turns it on).
+ * Individual beep_mask should be reset to off but for some
+ * reason disabling this bit helps some people not get beeped
+ */
w83781d_write_value(data, W83781D_REG_BEEP_INTS2, 0);
}
- /* Disable power-on abnormal beep, as advised by the datasheet.
- Already done if reset=1. */
+ /*
+ * Disable power-on abnormal beep, as advised by the datasheet.
+ * Already done if reset=1.
+ */
if (init && !reset && type != as99127f) {
i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG);
w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, i | 0x80);
@@ -1444,7 +1509,7 @@ static struct w83781d_data *w83781d_update_device(struct device *dev)
}
/* Only PWM2 can be disabled */
data->pwm2_enable = (w83781d_read_value(data,
- W83781D_REG_PWMCLK12) & 0x08) >> 3;
+ W83781D_REG_PWMCLK12) & 0x08) >> 3;
}
data->temp = w83781d_read_value(data, W83781D_REG_TEMP(1));
@@ -1495,8 +1560,10 @@ static struct w83781d_data *w83781d_update_device(struct device *dev)
| (w83781d_read_value(data,
W83782D_REG_ALARM2) << 8);
} else {
- /* No real-time status registers, fall back to
- interrupt status registers */
+ /*
+ * No real-time status registers, fall back to
+ * interrupt status registers
+ */
data->alarms = w83781d_read_value(data,
W83781D_REG_ALARM1)
| (w83781d_read_value(data,
@@ -1550,8 +1617,10 @@ static struct platform_device *pdev;
static unsigned short isa_address = 0x290;
-/* I2C devices get this name attribute automatically, but for ISA devices
- we must create it by ourselves. */
+/*
+ * I2C devices get this name attribute automatically, but for ISA devices
+ * we must create it by ourselves.
+ */
static ssize_t
show_name(struct device *dev, struct device_attribute *devattr, char *buf)
{
@@ -1581,8 +1650,10 @@ static int w83781d_alias_detect(struct i2c_client *client, u8 chipid)
if (w83781d_read_value(isa, W83781D_REG_WCHIPID) != chipid)
return 0; /* Chip type doesn't match */
- /* We compare all the limit registers, the config register and the
- * interrupt mask registers */
+ /*
+ * We compare all the limit registers, the config register and the
+ * interrupt mask registers
+ */
for (i = 0x2b; i <= 0x3d; i++) {
if (w83781d_read_value(isa, i) !=
i2c_smbus_read_byte_data(client, i))
@@ -1663,12 +1734,14 @@ w83781d_write_value_isa(struct w83781d_data *data, u16 reg, u16 value)
}
}
-/* The SMBus locks itself, usually, but nothing may access the Winbond between
- bank switches. ISA access must always be locked explicitly!
- We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks,
- would slow down the W83781D access and should not be necessary.
- There are some ugly typecasts here, but the good news is - they should
- nowhere else be necessary! */
+/*
+ * The SMBus locks itself, usually, but nothing may access the Winbond between
+ * bank switches. ISA access must always be locked explicitly!
+ * We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks,
+ * would slow down the W83781D access and should not be necessary.
+ * There are some ugly typecasts here, but the good news is - they should
+ * nowhere else be necessary!
+ */
static int
w83781d_read_value(struct w83781d_data *data, u16 reg)
{
@@ -1754,8 +1827,7 @@ w83781d_isa_probe(struct platform_device *pdev)
return 0;
exit_remove_files:
- sysfs_remove_group(&pdev->dev.kobj, &w83781d_group);
- sysfs_remove_group(&pdev->dev.kobj, &w83781d_group_opt);
+ w83781d_remove_files(&pdev->dev);
device_remove_file(&pdev->dev, &dev_attr_name);
kfree(data);
exit_release_region:
@@ -1770,8 +1842,7 @@ w83781d_isa_remove(struct platform_device *pdev)
struct w83781d_data *data = platform_get_drvdata(pdev);
hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&pdev->dev.kobj, &w83781d_group);
- sysfs_remove_group(&pdev->dev.kobj, &w83781d_group_opt);
+ w83781d_remove_files(&pdev->dev);
device_remove_file(&pdev->dev, &dev_attr_name);
release_region(data->isa_addr + W83781D_ADDR_REG_OFFSET, 2);
kfree(data);
@@ -1795,9 +1866,11 @@ w83781d_isa_found(unsigned short address)
int val, save, found = 0;
int port;
- /* Some boards declare base+0 to base+7 as a PNP device, some base+4
+ /*
+ * Some boards declare base+0 to base+7 as a PNP device, some base+4
* to base+7 and some base+5 to base+6. So we better request each port
- * individually for the probing phase. */
+ * individually for the probing phase.
+ */
for (port = address; port < address + W83781D_EXTENT; port++) {
if (!request_region(port, 1, "w83781d")) {
pr_debug("Failed to request port 0x%x\n", port);
@@ -1806,8 +1879,10 @@ w83781d_isa_found(unsigned short address)
}
#define REALLY_SLOW_IO
- /* We need the timeouts for at least some W83781D-like
- chips. But only if we read 'undefined' registers. */
+ /*
+ * We need the timeouts for at least some W83781D-like
+ * chips. But only if we read 'undefined' registers.
+ */
val = inb_p(address + 1);
if (inb_p(address + 2) != val
|| inb_p(address + 3) != val
@@ -1817,8 +1892,10 @@ w83781d_isa_found(unsigned short address)
}
#undef REALLY_SLOW_IO
- /* We should be able to change the 7 LSB of the address port. The
- MSB (busy flag) should be clear initially, set after the write. */
+ /*
+ * We should be able to change the 7 LSB of the address port. The
+ * MSB (busy flag) should be clear initially, set after the write.
+ */
save = inb_p(address + W83781D_ADDR_REG_OFFSET);
if (save & 0x80) {
pr_debug("Detection failed at step %d\n", 2);
@@ -2004,8 +2081,10 @@ sensors_w83781d_init(void)
{
int res;
- /* We register the ISA device first, so that we can skip the
- * registration of an I2C interface to the same device. */
+ /*
+ * We register the ISA device first, so that we can skip the
+ * registration of an I2C interface to the same device.
+ */
res = w83781d_isa_register();
if (res)
goto exit;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.