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-rw-r--r--drivers/hwmon/w83792d.c397
1 files changed, 232 insertions, 165 deletions
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
index d3100ea..ffb5fdf 100644
--- a/drivers/hwmon/w83792d.c
+++ b/drivers/hwmon/w83792d.c
@@ -1,39 +1,39 @@
/*
- w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring
- Copyright (C) 2004, 2005 Winbond Electronics Corp.
- Chunhao Huang <DZShen@Winbond.com.tw>,
- Rudolf Marek <r.marek@assembler.cz>
-
- 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.
-
- Note:
- 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
- 2. This driver is only for Winbond W83792D C version device, there
- are also some motherboards with B version W83792D device. The
- calculation method to in6-in7(measured value, limits) is a little
- different between C and B version. C or B version can be identified
- by CR[0x49h].
-*/
+ * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 2004, 2005 Winbond Electronics Corp.
+ * Chunhao Huang <DZShen@Winbond.com.tw>,
+ * Rudolf Marek <r.marek@assembler.cz>
+ *
+ * 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.
+ *
+ * Note:
+ * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
+ * 2. This driver is only for Winbond W83792D C version device, there
+ * are also some motherboards with B version W83792D device. The
+ * calculation method to in6-in7(measured value, limits) is a little
+ * different between C and B version. C or B version can be identified
+ * by CR[0x49h].
+ */
/*
- Supports following chips:
-
- Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
- w83792d 9 7 7 3 0x7a 0x5ca3 yes no
-*/
+ * Supports following chips:
+ *
+ * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
+ * w83792d 9 7 7 3 0x7a 0x5ca3 yes no
+ */
#include <linux/module.h>
#include <linux/init.h>
@@ -218,14 +218,16 @@ static const u8 W83792D_REG_LEVELS[3][4] = {
#define W83792D_REG_VBAT 0x5D
#define W83792D_REG_I2C_ADDR 0x48
-/* Conversions. Rounding and limit checking is only done on the TO_REG
- variants. Note that you should be a bit careful with which arguments
- these macros are called: arguments may be evaluated more than once.
- Fixing this is just not worth it. */
-#define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \
- ((((nr)==6)||((nr)==7))?(val*6):(val*4)))
-#define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \
- ((((nr)==6)||((nr)==7))?(val/6):(val/4)))
+/*
+ * Conversions. Rounding and limit checking is only done on the TO_REG
+ * variants. Note that you should be a bit careful with which arguments
+ * these macros are called: arguments may be evaluated more than once.
+ * Fixing this is just not worth it.
+ */
+#define IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \
+ ((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4)))
+#define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \
+ ((((nr) == 6) || ((nr) == 7)) ? ((val) / 6) : ((val) / 4)))
static inline u8
FAN_TO_REG(long rpm, int div)
@@ -236,7 +238,7 @@ FAN_TO_REG(long rpm, int div)
return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
}
-#define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \
+#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \
((val) == 255 ? 0 : \
1350000 / ((val) * (div))))
@@ -265,7 +267,7 @@ DIV_TO_REG(long val)
break;
val >>= 1;
}
- return ((u8) i);
+ return (u8)i;
}
struct w83792d_data {
@@ -287,8 +289,10 @@ struct w83792d_data {
u8 temp1[3]; /* current, over, thyst */
u8 temp_add[2][6]; /* Register value */
u8 fan_div[7]; /* Register encoding, shifted right */
- u8 pwm[7]; /* We only consider the first 3 set of pwm,
- although 792 chip has 7 set of pwm. */
+ u8 pwm[7]; /*
+ * We only consider the first 3 set of pwm,
+ * although 792 chip has 7 set of pwm.
+ */
u8 pwmenable[3];
u32 alarms; /* realtime status register encoding,combined */
u8 chassis; /* Chassis status */
@@ -333,12 +337,14 @@ static struct i2c_driver w83792d_driver = {
static inline long in_count_from_reg(int nr, struct w83792d_data *data)
{
/* in7 and in8 do not have low bits, but the formula still works */
- return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03));
+ return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03);
}
-/* The SMBus locks itself. The Winbond W83792D chip has a bank register,
- but the driver only accesses registers in bank 0, so we don't have
- to switch banks and lock access between switches. */
+/*
+ * The SMBus locks itself. The Winbond W83792D chip has a bank register,
+ * but the driver only accesses registers in bank 0, so we don't have
+ * to switch banks and lock access between switches.
+ */
static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
{
return i2c_smbus_read_byte_data(client, reg);
@@ -357,37 +363,43 @@ static ssize_t show_in(struct device *dev, struct device_attribute *attr,
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
int nr = sensor_attr->index;
struct w83792d_data *data = w83792d_update_device(dev);
- return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data))));
+ return sprintf(buf, "%ld\n",
+ IN_FROM_REG(nr, in_count_from_reg(nr, data)));
}
#define show_in_reg(reg) \
static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
char *buf) \
{ \
- struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+ struct sensor_device_attribute *sensor_attr \
+ = to_sensor_dev_attr(attr); \
int nr = sensor_attr->index; \
struct w83792d_data *data = w83792d_update_device(dev); \
- return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \
+ return sprintf(buf, "%ld\n", \
+ (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \
}
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, \
+static ssize_t store_in_##reg(struct device *dev, \
struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
- struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+ struct sensor_device_attribute *sensor_attr \
+ = to_sensor_dev_attr(attr); \
int nr = sensor_attr->index; \
struct i2c_client *client = to_i2c_client(dev); \
struct w83792d_data *data = i2c_get_clientdata(client); \
- 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] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \
- w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \
+ data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val) / 4, 0, 255); \
+ w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \
+ data->in_##reg[nr]); \
mutex_unlock(&data->update_lock); \
\
return count; \
@@ -396,13 +408,14 @@ store_in_reg(MIN, min);
store_in_reg(MAX, max);
#define show_fan_reg(reg) \
-static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
+static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
char *buf) \
{ \
- struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
+ struct sensor_device_attribute *sensor_attr \
+ = to_sensor_dev_attr(attr); \
int nr = sensor_attr->index - 1; \
struct w83792d_data *data = w83792d_update_device(dev); \
- return sprintf(buf,"%d\n", \
+ return sprintf(buf, "%d\n", \
FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
}
@@ -417,9 +430,13 @@ store_fan_min(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index - 1;
struct i2c_client *client = to_i2c_client(dev);
struct w83792d_data *data = i2c_get_clientdata(client);
- u32 val;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
- val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
@@ -439,10 +456,12 @@ show_fan_div(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
}
-/* 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 *attr,
const char *buf, size_t count)
@@ -455,13 +474,19 @@ store_fan_div(struct device *dev, struct device_attribute *attr,
/*u8 reg;*/
u8 fan_div_reg = 0;
u8 tmp_fan_div;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
/* Save fan_min */
mutex_lock(&data->update_lock);
min = FAN_FROM_REG(data->fan_min[nr],
DIV_FROM_REG(data->fan_div[nr]));
- data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
+ data->fan_div[nr] = DIV_TO_REG(val);
fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
@@ -496,9 +521,13 @@ static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct w83792d_data *data = i2c_get_clientdata(client);
- s32 val;
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
- val = simple_strtol(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->temp1[nr] = TEMP1_TO_REG(val);
w83792d_write_value(client, W83792D_REG_TEMP1[nr],
@@ -513,11 +542,12 @@ static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+ struct sensor_device_attribute_2 *sensor_attr
+ = to_sensor_dev_attr_2(attr);
int nr = sensor_attr->nr;
int index = sensor_attr->index;
struct w83792d_data *data = w83792d_update_device(dev);
- return sprintf(buf,"%ld\n",
+ return sprintf(buf, "%ld\n",
(long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
data->temp_add[nr][index+1]));
}
@@ -525,14 +555,19 @@ static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+ struct sensor_device_attribute_2 *sensor_attr
+ = to_sensor_dev_attr_2(attr);
int nr = sensor_attr->nr;
int index = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct w83792d_data *data = i2c_get_clientdata(client);
- s32 val;
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
- val = simple_strtol(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
@@ -604,7 +639,13 @@ store_pwm(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct w83792d_data *data = i2c_get_clientdata(client);
- u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+ val = SENSORS_LIMIT(val, 0, 255) >> 4;
mutex_lock(&data->update_lock);
val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
@@ -623,10 +664,14 @@ store_pwmenable(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index - 1;
struct i2c_client *client = to_i2c_client(dev);
struct w83792d_data *data = i2c_get_clientdata(client);
- u32 val;
u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
- val = simple_strtoul(buf, NULL, 10);
if (val < 1 || val > 3)
return -EINVAL;
@@ -645,7 +690,7 @@ store_pwmenable(struct device *dev, struct device_attribute *attr,
cfg1_tmp = data->pwmenable[0];
cfg2_tmp = (data->pwmenable[1]) << 2;
cfg3_tmp = (data->pwmenable[2]) << 4;
- cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
+ cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0;
fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
mutex_unlock(&data->update_lock);
@@ -671,10 +716,13 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev);
struct w83792d_data *data = i2c_get_clientdata(client);
- u32 val;
+ unsigned long val;
+ int err;
- val = simple_strtoul(buf, NULL, 10);
- if (val != 0 && val != 1)
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+ if (val > 1)
return -EINVAL;
mutex_lock(&data->update_lock);
@@ -721,16 +769,20 @@ store_chassis_clear_legacy(struct device *dev, struct device_attribute *attr,
{
struct i2c_client *client = to_i2c_client(dev);
struct w83792d_data *data = i2c_get_clientdata(client);
- u32 val;
+ unsigned long val;
+ int err;
u8 temp1 = 0, temp2 = 0;
dev_warn(dev,
"Attribute %s is deprecated, use intrusion0_alarm instead\n",
"chassis_clear");
- val = simple_strtoul(buf, NULL, 10);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
mutex_lock(&data->update_lock);
- data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
+ data->chassis_clear = SENSORS_LIMIT(val, 0, 1);
temp1 = ((data->chassis_clear) << 7) & 0x80;
temp2 = w83792d_read_value(client,
W83792D_REG_CHASSIS_CLR) & 0x7f;
@@ -780,14 +832,19 @@ store_thermal_cruise(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index - 1;
struct i2c_client *client = to_i2c_client(dev);
struct w83792d_data *data = i2c_get_clientdata(client);
- u32 val;
- u8 target_tmp=0, target_mask=0;
+ u8 target_tmp = 0, target_mask = 0;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
- val = simple_strtoul(buf, NULL, 10);
target_tmp = val;
target_tmp = target_tmp & 0x7f;
mutex_lock(&data->update_lock);
- target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
+ target_mask = w83792d_read_value(client,
+ W83792D_REG_THERMAL[nr]) & 0x80;
data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
w83792d_write_value(client, W83792D_REG_THERMAL[nr],
(data->thermal_cruise[nr]) | target_mask);
@@ -815,19 +872,22 @@ store_tolerance(struct device *dev, struct device_attribute *attr,
int nr = sensor_attr->index - 1;
struct i2c_client *client = to_i2c_client(dev);
struct w83792d_data *data = i2c_get_clientdata(client);
- u32 val;
u8 tol_tmp, tol_mask;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
- val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
tol_mask = w83792d_read_value(client,
W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
tol_tmp = SENSORS_LIMIT(val, 0, 15);
tol_tmp &= 0x0f;
data->tolerance[nr] = tol_tmp;
- if (nr == 1) {
+ if (nr == 1)
tol_tmp <<= 4;
- }
w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
tol_mask | tol_tmp);
mutex_unlock(&data->update_lock);
@@ -840,7 +900,8 @@ static ssize_t
show_sf2_point(struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+ struct sensor_device_attribute_2 *sensor_attr
+ = to_sensor_dev_attr_2(attr);
int nr = sensor_attr->nr;
int index = sensor_attr->index;
struct w83792d_data *data = w83792d_update_device(dev);
@@ -851,15 +912,20 @@ static ssize_t
store_sf2_point(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+ struct sensor_device_attribute_2 *sensor_attr
+ = to_sensor_dev_attr_2(attr);
int nr = sensor_attr->nr - 1;
int index = sensor_attr->index - 1;
struct i2c_client *client = to_i2c_client(dev);
struct w83792d_data *data = i2c_get_clientdata(client);
- u32 val;
u8 mask_tmp = 0;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
- val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
mask_tmp = w83792d_read_value(client,
@@ -875,7 +941,8 @@ static ssize_t
show_sf2_level(struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+ struct sensor_device_attribute_2 *sensor_attr
+ = to_sensor_dev_attr_2(attr);
int nr = sensor_attr->nr;
int index = sensor_attr->index;
struct w83792d_data *data = w83792d_update_device(dev);
@@ -887,25 +954,30 @@ static ssize_t
store_sf2_level(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
+ struct sensor_device_attribute_2 *sensor_attr
+ = to_sensor_dev_attr_2(attr);
int nr = sensor_attr->nr;
int index = sensor_attr->index - 1;
struct i2c_client *client = to_i2c_client(dev);
struct w83792d_data *data = i2c_get_clientdata(client);
- u32 val;
- u8 mask_tmp=0, level_tmp=0;
+ u8 mask_tmp = 0, level_tmp = 0;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
- val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
- & ((nr==3) ? 0xf0 : 0x0f);
- if (nr==3) {
+ & ((nr == 3) ? 0xf0 : 0x0f);
+ if (nr == 3)
level_tmp = data->sf2_levels[index][nr];
- } else {
+ else
level_tmp = data->sf2_levels[index][nr] << 4;
- }
- w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
+ w83792d_write_value(client, W83792D_REG_LEVELS[index][nr],
+ level_tmp | mask_tmp);
mutex_unlock(&data->update_lock);
return count;
@@ -939,9 +1011,8 @@ w83792d_detect_subclients(struct i2c_client *new_client)
}
val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
- if (!(val & 0x08)) {
+ if (!(val & 0x08))
data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
- }
if (!(val & 0x80)) {
if ((data->lm75[0] != NULL) &&
((val & 0x7) == ((val >> 4) & 0x7))) {
@@ -1306,9 +1377,8 @@ w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
int val1, val2;
unsigned short address = client->addr;
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
- }
if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
return -ENODEV;
@@ -1318,11 +1388,13 @@ w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
/* Check for Winbond ID if in bank 0 */
if (!(val1 & 0x07)) { /* is Bank0 */
if ((!(val1 & 0x80) && val2 != 0xa3) ||
- ( (val1 & 0x80) && val2 != 0x5c))
+ ((val1 & 0x80) && val2 != 0x5c))
return -ENODEV;
}
- /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
- should match */
+ /*
+ * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
+ * should match
+ */
if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
return -ENODEV;
@@ -1374,33 +1446,40 @@ w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
}
/* Register sysfs hooks */
- if ((err = sysfs_create_group(&dev->kobj, &w83792d_group)))
+ err = sysfs_create_group(&dev->kobj, &w83792d_group);
+ if (err)
goto ERROR3;
- /* Read GPIO enable register to check if pins for fan 4,5 are used as
- GPIO */
+ /*
+ * Read GPIO enable register to check if pins for fan 4,5 are used as
+ * GPIO
+ */
val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
- if (!(val1 & 0x40))
- if ((err = sysfs_create_group(&dev->kobj,
- &w83792d_group_fan[0])))
+ if (!(val1 & 0x40)) {
+ err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]);
+ if (err)
goto exit_remove_files;
+ }
- if (!(val1 & 0x20))
- if ((err = sysfs_create_group(&dev->kobj,
- &w83792d_group_fan[1])))
+ if (!(val1 & 0x20)) {
+ err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]);
+ if (err)
goto exit_remove_files;
+ }
val1 = w83792d_read_value(client, W83792D_REG_PIN);
- if (val1 & 0x40)
- if ((err = sysfs_create_group(&dev->kobj,
- &w83792d_group_fan[2])))
+ if (val1 & 0x40) {
+ err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]);
+ if (err)
goto exit_remove_files;
+ }
- if (val1 & 0x04)
- if ((err = sysfs_create_group(&dev->kobj,
- &w83792d_group_fan[3])))
+ if (val1 & 0x04) {
+ err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]);
+ if (err)
goto exit_remove_files;
+ }
data->hwmon_dev = hwmon_device_register(dev);
if (IS_ERR(data->hwmon_dev)) {
@@ -1451,14 +1530,16 @@ w83792d_init_client(struct i2c_client *client)
{
u8 temp2_cfg, temp3_cfg, vid_in_b;
- if (init) {
+ if (init)
w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
- }
- /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
- W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
- vin0/vin1 can be modified by user;
- W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
- vin0/vin1 auto-updated, can NOT be modified by user. */
+
+ /*
+ * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
+ * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
+ * vin0/vin1 can be modified by user;
+ * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
+ * vin0/vin1 auto-updated, can NOT be modified by user.
+ */
vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
w83792d_write_value(client, W83792D_REG_VID_IN_B,
vid_in_b & 0xbf);
@@ -1527,7 +1608,7 @@ static struct w83792d_data *w83792d_update_device(struct device *dev)
for (i = 0; i < 2; i++) {
for (j = 0; j < 6; j++) {
data->temp_add[i][j] = w83792d_read_value(
- client,W83792D_REG_TEMP_ADD[i][j]);
+ client, W83792D_REG_TEMP_ADD[i][j]);
}
}
@@ -1572,8 +1653,9 @@ static struct w83792d_data *w83792d_update_device(struct device *dev)
/* Update Smart Fan II temperature points */
for (i = 0; i < 3; i++) {
for (j = 0; j < 4; j++) {
- data->sf2_points[i][j] = w83792d_read_value(
- client,W83792D_REG_POINTS[i][j]) & 0x7f;
+ data->sf2_points[i][j]
+ = w83792d_read_value(client,
+ W83792D_REG_POINTS[i][j]) & 0x7f;
}
}
@@ -1605,10 +1687,10 @@ static struct w83792d_data *w83792d_update_device(struct device *dev)
#ifdef DEBUG
static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
{
- int i=0, j=0;
+ int i = 0, j = 0;
dev_dbg(dev, "==========The following is the debug message...========\n");
dev_dbg(dev, "9 set of Voltages: =====>\n");
- for (i=0; i<9; i++) {
+ for (i = 0; i < 9; i++) {
dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
@@ -1616,47 +1698,32 @@ static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
- for (i=0; i<7; i++) {
+ for (i = 0; i < 7; i++) {
dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
dev_dbg(dev, "pwm[%d] is: 0x%x\n", i, data->pwm[i]);
}
dev_dbg(dev, "3 set of Temperatures: =====>\n");
- for (i=0; i<3; i++) {
+ for (i = 0; i < 3; i++)
dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
- }
- for (i=0; i<2; i++) {
- for (j=0; j<6; j++) {
+ for (i = 0; i < 2; i++) {
+ for (j = 0; j < 6; j++) {
dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
data->temp_add[i][j]);
}
}
- for (i=0; i<7; i++) {
+ for (i = 0; i < 7; i++)
dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
- }
- dev_dbg(dev, "==========End of the debug message...==================\n");
+
+ dev_dbg(dev, "==========End of the debug message...================\n");
dev_dbg(dev, "\n");
}
#endif
-static int __init
-sensors_w83792d_init(void)
-{
- return i2c_add_driver(&w83792d_driver);
-}
-
-static void __exit
-sensors_w83792d_exit(void)
-{
- i2c_del_driver(&w83792d_driver);
-}
+module_i2c_driver(w83792d_driver);
MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
MODULE_LICENSE("GPL");
-
-module_init(sensors_w83792d_init);
-module_exit(sensors_w83792d_exit);
-
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