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path: root/drivers/hwmon/f71805f.c
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Diffstat (limited to 'drivers/hwmon/f71805f.c')
-rw-r--r--drivers/hwmon/f71805f.c211
1 files changed, 148 insertions, 63 deletions
diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c
index 92f949767ece..3e4da620e9c7 100644
--- a/drivers/hwmon/f71805f.c
+++ b/drivers/hwmon/f71805f.c
@@ -202,7 +202,7 @@ struct f71805f_sio_data {
static inline long in_from_reg(u8 reg)
{
- return (reg * 8);
+ return reg * 8;
}
/* The 2 least significant bits are not used */
@@ -212,13 +212,13 @@ static inline u8 in_to_reg(long val)
return 0;
if (val >= 2016)
return 0xfc;
- return (((val + 16) / 32) << 2);
+ return ((val + 16) / 32) << 2;
}
/* in0 is downscaled by a factor 2 internally */
static inline long in0_from_reg(u8 reg)
{
- return (reg * 16);
+ return reg * 16;
}
static inline u8 in0_to_reg(long val)
@@ -227,7 +227,7 @@ static inline u8 in0_to_reg(long val)
return 0;
if (val >= 4032)
return 0xfc;
- return (((val + 32) / 64) << 2);
+ return ((val + 32) / 64) << 2;
}
/* The 4 most significant bits are not used */
@@ -236,17 +236,19 @@ static inline long fan_from_reg(u16 reg)
reg &= 0xfff;
if (!reg || reg == 0xfff)
return 0;
- return (1500000 / reg);
+ return 1500000 / reg;
}
static inline u16 fan_to_reg(long rpm)
{
- /* If the low limit is set below what the chip can measure,
- store the largest possible 12-bit value in the registers,
- so that no alarm will ever trigger. */
+ /*
+ * If the low limit is set below what the chip can measure,
+ * store the largest possible 12-bit value in the registers,
+ * so that no alarm will ever trigger.
+ */
if (rpm < 367)
return 0xfff;
- return (1500000 / rpm);
+ return 1500000 / rpm;
}
static inline unsigned long pwm_freq_from_reg(u8 reg)
@@ -278,16 +280,16 @@ static inline int pwm_mode_from_reg(u8 reg)
static inline long temp_from_reg(u8 reg)
{
- return (reg * 1000);
+ return reg * 1000;
}
static inline u8 temp_to_reg(long val)
{
- if (val < 0)
- val = 0;
- else if (val > 1000 * 0xff)
- val = 0xff;
- return ((val + 500) / 1000);
+ if (val <= 0)
+ return 0;
+ if (val >= 1000 * 0xff)
+ return 0xff;
+ return (val + 500) / 1000;
}
/*
@@ -308,9 +310,11 @@ static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val)
outb(val, data->addr + DATA_REG_OFFSET);
}
-/* It is important to read the MSB first, because doing so latches the
- value of the LSB, so we are sure both bytes belong to the same value.
- Must be called with data->update_lock held, except during initialization */
+/*
+ * It is important to read the MSB first, because doing so latches the
+ * value of the LSB, so we are sure both bytes belong to the same value.
+ * Must be called with data->update_lock held, except during initialization
+ */
static u16 f71805f_read16(struct f71805f_data *data, u8 reg)
{
u16 val;
@@ -455,7 +459,12 @@ static ssize_t set_in0_max(struct device *dev, struct device_attribute
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->in_high[nr] = in0_to_reg(val);
@@ -471,7 +480,12 @@ static ssize_t set_in0_min(struct device *dev, struct device_attribute
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->in_low[nr] = in0_to_reg(val);
@@ -517,7 +531,12 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->in_high[nr] = in_to_reg(val);
@@ -533,7 +552,12 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->in_low[nr] = in_to_reg(val);
@@ -579,7 +603,12 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->fan_low[nr] = fan_to_reg(val);
@@ -595,7 +624,12 @@ static ssize_t set_fan_target(struct device *dev, struct device_attribute
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->fan_target[nr] = fan_to_reg(val);
@@ -664,7 +698,12 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
if (val > 255)
return -EINVAL;
@@ -685,8 +724,13 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
- unsigned long val = simple_strtoul(buf, NULL, 10);
u8 reg;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
if (val < 1 || val > 3)
return -EINVAL;
@@ -730,7 +774,12 @@ static ssize_t set_pwm_freq(struct device *dev, struct device_attribute
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
- 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);
data->pwm_freq[nr] = pwm_freq_to_reg(val);
@@ -742,7 +791,7 @@ static ssize_t set_pwm_freq(struct device *dev, struct device_attribute
static ssize_t show_pwm_auto_point_temp(struct device *dev,
struct device_attribute *devattr,
- char* buf)
+ char *buf)
{
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
@@ -755,13 +804,18 @@ static ssize_t show_pwm_auto_point_temp(struct device *dev,
static ssize_t set_pwm_auto_point_temp(struct device *dev,
struct device_attribute *devattr,
- const char* buf, size_t count)
+ const char *buf, size_t count)
{
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
int pwmnr = attr->nr;
int apnr = attr->index;
- unsigned long val = simple_strtol(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->auto_points[pwmnr].temp[apnr] = temp_to_reg(val);
@@ -774,7 +828,7 @@ static ssize_t set_pwm_auto_point_temp(struct device *dev,
static ssize_t show_pwm_auto_point_fan(struct device *dev,
struct device_attribute *devattr,
- char* buf)
+ char *buf)
{
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
@@ -787,18 +841,23 @@ static ssize_t show_pwm_auto_point_fan(struct device *dev,
static ssize_t set_pwm_auto_point_fan(struct device *dev,
struct device_attribute *devattr,
- const char* buf, size_t count)
+ const char *buf, size_t count)
{
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
int pwmnr = attr->nr;
int apnr = attr->index;
- 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);
data->auto_points[pwmnr].fan[apnr] = fan_to_reg(val);
f71805f_write16(data, F71805F_REG_PWM_AUTO_POINT_FAN(pwmnr, apnr),
- data->auto_points[pwmnr].fan[apnr]);
+ data->auto_points[pwmnr].fan[apnr]);
mutex_unlock(&data->update_lock);
return count;
@@ -851,7 +910,12 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->temp_high[nr] = temp_to_reg(val);
@@ -867,7 +931,12 @@ static ssize_t set_temp_hyst(struct device *dev, struct device_attribute
struct f71805f_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
int nr = attr->index;
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->temp_hyst[nr] = temp_to_reg(val);
@@ -920,9 +989,9 @@ static ssize_t show_name(struct device *dev, struct device_attribute
}
static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in0, NULL, 0);
-static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO| S_IWUSR,
+static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR,
show_in0_max, set_in0_max, 0);
-static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO| S_IWUSR,
+static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR,
show_in0_min, set_in0_min, 0);
static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO | S_IWUSR,
@@ -1010,8 +1079,10 @@ static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR,
show_temp_hyst, set_temp_hyst, 2);
static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2);
-/* pwm (value) files are created read-only, write permission is
- then added or removed dynamically as needed */
+/*
+ * pwm (value) files are created read-only, write permission is
+ * then added or removed dynamically as needed
+ */
static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, show_pwm, set_pwm, 0);
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
show_pwm_enable, set_pwm_enable, 0);
@@ -1246,8 +1317,10 @@ static const struct attribute_group f71805f_group_optin[4] = {
{ .attrs = f71805f_attributes_optin[3] },
};
-/* We don't include pwm_freq files in the arrays above, because they must be
- created conditionally (only if pwm_mode is 1 == PWM) */
+/*
+ * We don't include pwm_freq files in the arrays above, because they must be
+ * created conditionally (only if pwm_mode is 1 == PWM)
+ */
static struct attribute *f71805f_attributes_pwm_freq[] = {
&sensor_dev_attr_pwm1_freq.dev_attr.attr,
&sensor_dev_attr_pwm2_freq.dev_attr.attr,
@@ -1282,13 +1355,17 @@ static void __devinit f71805f_init_device(struct f71805f_data *data)
f71805f_write8(data, F71805F_REG_START, (reg | 0x01) & ~0x40);
}
- /* Fan monitoring can be disabled. If it is, we won't be polling
- the register values, and won't create the related sysfs files. */
+ /*
+ * Fan monitoring can be disabled. If it is, we won't be polling
+ * the register values, and won't create the related sysfs files.
+ */
for (i = 0; i < 3; i++) {
data->fan_ctrl[i] = f71805f_read8(data,
F71805F_REG_FAN_CTRL(i));
- /* Clear latch full bit, else "speed mode" fan speed control
- doesn't work */
+ /*
+ * Clear latch full bit, else "speed mode" fan speed control
+ * doesn't work
+ */
if (data->fan_ctrl[i] & FAN_CTRL_LATCH_FULL) {
data->fan_ctrl[i] &= ~FAN_CTRL_LATCH_FULL;
f71805f_write8(data, F71805F_REG_FAN_CTRL(i),
@@ -1304,12 +1381,13 @@ static int __devinit f71805f_probe(struct platform_device *pdev)
struct resource *res;
int i, err;
- static const char *names[] = {
+ static const char * const names[] = {
"f71805f",
"f71872f",
};
- if (!(data = kzalloc(sizeof(struct f71805f_data), GFP_KERNEL))) {
+ data = kzalloc(sizeof(struct f71805f_data), GFP_KERNEL);
+ if (!data) {
err = -ENOMEM;
pr_err("Out of memory\n");
goto exit;
@@ -1347,40 +1425,47 @@ static int __devinit f71805f_probe(struct platform_device *pdev)
f71805f_init_device(data);
/* Register sysfs interface files */
- if ((err = sysfs_create_group(&pdev->dev.kobj, &f71805f_group)))
+ err = sysfs_create_group(&pdev->dev.kobj, &f71805f_group);
+ if (err)
goto exit_release_region;
if (data->has_in & (1 << 4)) { /* in4 */
- if ((err = sysfs_create_group(&pdev->dev.kobj,
- &f71805f_group_optin[0])))
+ err = sysfs_create_group(&pdev->dev.kobj,
+ &f71805f_group_optin[0]);
+ if (err)
goto exit_remove_files;
}
if (data->has_in & (1 << 8)) { /* in8 */
- if ((err = sysfs_create_group(&pdev->dev.kobj,
- &f71805f_group_optin[1])))
+ err = sysfs_create_group(&pdev->dev.kobj,
+ &f71805f_group_optin[1]);
+ if (err)
goto exit_remove_files;
}
if (data->has_in & (1 << 9)) { /* in9 (F71872F/FG only) */
- if ((err = sysfs_create_group(&pdev->dev.kobj,
- &f71805f_group_optin[2])))
+ err = sysfs_create_group(&pdev->dev.kobj,
+ &f71805f_group_optin[2]);
+ if (err)
goto exit_remove_files;
}
if (data->has_in & (1 << 10)) { /* in9 (F71872F/FG only) */
- if ((err = sysfs_create_group(&pdev->dev.kobj,
- &f71805f_group_optin[3])))
+ err = sysfs_create_group(&pdev->dev.kobj,
+ &f71805f_group_optin[3]);
+ if (err)
goto exit_remove_files;
}
for (i = 0; i < 3; i++) {
/* If control mode is PWM, create pwm_freq file */
if (!(data->fan_ctrl[i] & FAN_CTRL_DC_MODE)) {
- if ((err = sysfs_create_file(&pdev->dev.kobj,
- f71805f_attributes_pwm_freq[i])))
+ err = sysfs_create_file(&pdev->dev.kobj,
+ f71805f_attributes_pwm_freq[i]);
+ if (err)
goto exit_remove_files;
}
/* If PWM is in manual mode, add write permission */
if (data->fan_ctrl[i] & FAN_CTRL_MODE_MANUAL) {
- if ((err = sysfs_chmod_file(&pdev->dev.kobj,
- f71805f_attr_pwm[i],
- S_IRUGO | S_IWUSR))) {
+ err = sysfs_chmod_file(&pdev->dev.kobj,
+ f71805f_attr_pwm[i],
+ S_IRUGO | S_IWUSR);
+ if (err) {
dev_err(&pdev->dev, "chmod +w pwm%d failed\n",
i + 1);
goto exit_remove_files;
@@ -1495,7 +1580,7 @@ static int __init f71805f_find(int sioaddr, unsigned short *address,
int err = -ENODEV;
u16 devid;
- static const char *names[] = {
+ static const char * const names[] = {
"F71805F/FG",
"F71872F/FG or F71806F/FG",
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-16 17:51:51 +0000