hwmon: (adm1031) Fix coding style issues

Fix almost all coding style issues except for the multi-line macro errors,
which do not really apply since the macros are not multi-line statements
but declarations.

Based on merged patch series from Zac Storer; fixed remaining checkpatch
errors and warnings.

Cc: Zac Storer <zac.3.14159@gmail.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 103 insertions, 50 deletions

diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c
index e6291dafa4ca..97e2cfb0bc93 100644
--- a/drivers/hwmon/adm1031.c
+++ b/drivers/hwmon/adm1031.c
@@ -155,7 +155,8 @@ adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value)
 #define TEMP_OFFSET_FROM_REG(val)       TEMP_FROM_REG((val) < 0 ? \
                                                       (val) | 0x70 : (val))
 
-#define FAN_FROM_REG(reg, div)          ((reg) ? (11250 * 60) / ((reg) * (div)) : 0)
+#define FAN_FROM_REG(reg, div)          ((reg) ? \
+                                         (11250 * 60) / ((reg) * (div)) : 0)
 
 static int FAN_TO_REG(int reg, int div)
 {
@@ -174,8 +175,8 @@ static int FAN_TO_REG(int reg, int div)
         (((reg) & 0x1F) | (((val) << 5) & 0xe0))
 
 #define AUTO_TEMP_MIN_TO_REG(val, reg)  \
-        ((((val)/500) & 0xf8)|((reg) & 0x7))
-#define AUTO_TEMP_RANGE_FROM_REG(reg)   (5000 * (1<< ((reg)&0x7)))
+        ((((val) / 500) & 0xf8) | ((reg) & 0x7))
+#define AUTO_TEMP_RANGE_FROM_REG(reg)   (5000 * (1 << ((reg) & 0x7)))
 #define AUTO_TEMP_MIN_FROM_REG(reg)     (1000 * ((((reg) >> 3) & 0x1f) << 2))
 
 #define AUTO_TEMP_MIN_FROM_REG_DEG(reg) ((((reg) >> 3) & 0x1f) << 2)
@@ -202,7 +203,7 @@ static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm)
 
 /* FAN auto control */
 #define GET_FAN_AUTO_BITFIELD(data, idx)        \
-        (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx%2]
+        (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx % 2]
 
 /* The tables below contains the possible values for the auto fan
  * control bitfields. the index in the table is the register value.
@@ -230,7 +231,7 @@ static const auto_chan_table_t auto_channel_select_table_adm1030 = {
  */
 static int
 get_fan_auto_nearest(struct adm1031_data *data,
-                     int chan, u8 val, u8 reg, u8 * new_reg)
+                     int chan, u8 val, u8 reg, u8 *new_reg)
 {
         int i;
         int first_match = -1, exact_match = -1;
@@ -258,13 +259,13 @@ get_fan_auto_nearest(struct adm1031_data *data,
                 }
         }
 
-        if (exact_match >= 0) {
+        if (exact_match >= 0)
                 *new_reg = exact_match;
-        } else if (first_match >= 0) {
+        else if (first_match >= 0)
                 *new_reg = first_match;
-        } else {
+        else
                 return -EINVAL;
-        }
+
         return 0;
 }
 
@@ -283,23 +284,28 @@ set_fan_auto_channel(struct device *dev, struct device_attribute *attr,
         struct i2c_client *client = to_i2c_client(dev);
         struct adm1031_data *data = i2c_get_clientdata(client);
         int nr = to_sensor_dev_attr(attr)->index;
-        int val = simple_strtol(buf, NULL, 10);
+        long val;
         u8 reg;
         int ret;
         u8 old_fan_mode;
 
+        ret = kstrtol(buf, 10, &val);
+        if (ret)
+                return ret;
+
         old_fan_mode = data->conf1;
 
         mutex_lock(&data->update_lock);
 
-        if ((ret = get_fan_auto_nearest(data, nr, val, data->conf1, &reg))) {
+        ret = get_fan_auto_nearest(data, nr, val, data->conf1, &reg);
+        if (ret) {
                 mutex_unlock(&data->update_lock);
                 return ret;
         }
         data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1);
         if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) ^
             (old_fan_mode & ADM1031_CONF1_AUTO_MODE)) {
-                if (data->conf1 & ADM1031_CONF1_AUTO_MODE){
+                if (data->conf1 & ADM1031_CONF1_AUTO_MODE) {
                         /* Switch to Auto Fan Mode
                          * Save PWM registers
                          * Set PWM registers to 33% Both */
@@ -350,7 +356,12 @@ set_auto_temp_min(struct device *dev, struct device_attribute *attr,
         struct i2c_client *client = to_i2c_client(dev);
         struct adm1031_data *data = i2c_get_clientdata(client);
         int nr = to_sensor_dev_attr(attr)->index;
-        int val = simple_strtol(buf, NULL, 10);
+        long val;
+        int ret;
+
+        ret = kstrtol(buf, 10, &val);
+        if (ret)
+                return ret;
 
         mutex_lock(&data->update_lock);
         data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]);
@@ -374,10 +385,16 @@ set_auto_temp_max(struct device *dev, struct device_attribute *attr,
         struct i2c_client *client = to_i2c_client(dev);
         struct adm1031_data *data = i2c_get_clientdata(client);
         int nr = to_sensor_dev_attr(attr)->index;
-        int val = simple_strtol(buf, NULL, 10);
+        long val;
+        int ret;
+
+        ret = kstrtol(buf, 10, &val);
+        if (ret)
+                return ret;
 
         mutex_lock(&data->update_lock);
-        data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], data->pwm[nr]);
+        data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr],
+                                                  data->pwm[nr]);
         adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
                             data->temp_max[nr]);
         mutex_unlock(&data->update_lock);
@@ -410,8 +427,12 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
         struct i2c_client *client = to_i2c_client(dev);
         struct adm1031_data *data = i2c_get_clientdata(client);
         int nr = to_sensor_dev_attr(attr)->index;
-        int val = simple_strtol(buf, NULL, 10);
-        int reg;
+        long val;
+        int ret, reg;
+
+        ret = kstrtol(buf, 10, &val);
+        if (ret)
+                return ret;
 
         mutex_lock(&data->update_lock);
         if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) &&
@@ -449,9 +470,13 @@ static int trust_fan_readings(struct adm1031_data *data, int chan)
 
         if (data->conf1 & ADM1031_CONF1_AUTO_MODE) {
                 switch (data->conf1 & 0x60) {
-                case 0x00:      /* remote temp1 controls fan1 remote temp2 controls fan2 */
+                case 0x00:
+                        /*
+                         * remote temp1 controls fan1,
+                         * remote temp2 controls fan2
+                         */
                         res = data->temp[chan+1] >=
-                              AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]);
+                            AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]);
                         break;
                 case 0x20:      /* remote temp1 controls both fans */
                         res =
@@ -515,7 +540,12 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
         struct i2c_client *client = to_i2c_client(dev);
         struct adm1031_data *data = i2c_get_clientdata(client);
         int nr = to_sensor_dev_attr(attr)->index;
-        int val = simple_strtol(buf, NULL, 10);
+        long val;
+        int ret;
+
+        ret = kstrtol(buf, 10, &val);
+        if (ret)
+                return ret;
 
         mutex_lock(&data->update_lock);
         if (val) {
@@ -534,10 +564,15 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
         struct i2c_client *client = to_i2c_client(dev);
         struct adm1031_data *data = i2c_get_clientdata(client);
         int nr = to_sensor_dev_attr(attr)->index;
-        int val = simple_strtol(buf, NULL, 10);
+        long val;
         u8 tmp;
         int old_div;
         int new_min;
+        int ret;
+
+        ret = kstrtol(buf, 10, &val);
+        if (ret)
+                return ret;
 
         tmp = val == 8 ? 0xc0 :
               val == 4 ? 0x80 :
@@ -631,9 +666,13 @@ static ssize_t set_temp_offset(struct device *dev,
         struct i2c_client *client = to_i2c_client(dev);
         struct adm1031_data *data = i2c_get_clientdata(client);
         int nr = to_sensor_dev_attr(attr)->index;
-        int val;
+        long val;
+        int ret;
+
+        ret = kstrtol(buf, 10, &val);
+        if (ret)
+                return ret;
 
-        val = simple_strtol(buf, NULL, 10);
         val = SENSORS_LIMIT(val, -15000, 15000);
         mutex_lock(&data->update_lock);
         data->temp_offset[nr] = TEMP_OFFSET_TO_REG(val);
@@ -648,9 +687,13 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
         struct i2c_client *client = to_i2c_client(dev);
         struct adm1031_data *data = i2c_get_clientdata(client);
         int nr = to_sensor_dev_attr(attr)->index;
-        int val;
+        long val;
+        int ret;
+
+        ret = kstrtol(buf, 10, &val);
+        if (ret)
+                return ret;
 
-        val = simple_strtol(buf, NULL, 10);
         val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
         mutex_lock(&data->update_lock);
         data->temp_min[nr] = TEMP_TO_REG(val);
@@ -665,9 +708,13 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
         struct i2c_client *client = to_i2c_client(dev);
         struct adm1031_data *data = i2c_get_clientdata(client);
         int nr = to_sensor_dev_attr(attr)->index;
-        int val;
+        long val;
+        int ret;
+
+        ret = kstrtol(buf, 10, &val);
+        if (ret)
+                return ret;
 
-        val = simple_strtol(buf, NULL, 10);
         val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
         mutex_lock(&data->update_lock);
         data->temp_max[nr] = TEMP_TO_REG(val);
@@ -682,9 +729,13 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
         struct i2c_client *client = to_i2c_client(dev);
         struct adm1031_data *data = i2c_get_clientdata(client);
         int nr = to_sensor_dev_attr(attr)->index;
-        int val;
+        long val;
+        int ret;
+
+        ret = kstrtol(buf, 10, &val);
+        if (ret)
+                return ret;
 
-        val = simple_strtol(buf, NULL, 10);
         val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
         mutex_lock(&data->update_lock);
         data->temp_crit[nr] = TEMP_TO_REG(val);
@@ -711,7 +762,8 @@ temp_reg(2);
 temp_reg(3);
 
 /* Alarms */
-static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
+                           char *buf)
 {
         struct adm1031_data *data = adm1031_update_device(dev);
         return sprintf(buf, "%d\n", data->alarm);
@@ -919,12 +971,13 @@ static int adm1031_probe(struct i2c_client *client,
         adm1031_init_client(client);
 
         /* Register sysfs hooks */
-        if ((err = sysfs_create_group(&client->dev.kobj, &adm1031_group)))
+        err = sysfs_create_group(&client->dev.kobj, &adm1031_group);
+        if (err)
                 goto exit_free;
 
         if (data->chip_type == adm1031) {
-                if ((err = sysfs_create_group(&client->dev.kobj,
-                                                &adm1031_group_opt)))
+                err = sysfs_create_group(&client->dev.kobj, &adm1031_group_opt);
+                if (err)
                         goto exit_remove;
         }
 
@@ -970,14 +1023,13 @@ static void adm1031_init_client(struct i2c_client *client)
         }
         /* Initialize the ADM1031 chip (enables fan speed reading ) */
         read_val = adm1031_read_value(client, ADM1031_REG_CONF2);
-        if ((read_val | mask) != read_val) {
-            adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask);
-        }
+        if ((read_val | mask) != read_val)
+                adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask);
 
         read_val = adm1031_read_value(client, ADM1031_REG_CONF1);
         if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) {
-            adm1031_write_value(client, ADM1031_REG_CONF1, read_val |
-                                ADM1031_CONF1_MONITOR_ENABLE);
+                adm1031_write_value(client, ADM1031_REG_CONF1,
+                                    read_val | ADM1031_CONF1_MONITOR_ENABLE);
         }
 
         /* Read the chip's update rate */
@@ -1024,8 +1076,7 @@ static struct adm1031_data *adm1031_update_device(struct device *dev)
                                 /* oldh is actually newer */
                                 if (newh != oldh)
                                         dev_warn(&client->dev,
-                                                 "Remote temperature may be "
-                                                 "wrong.\n");
+                                          "Remote temperature may be wrong.\n");
 #endif
                         }
                         data->temp[chan] = newh;
@@ -1052,22 +1103,24 @@ static struct adm1031_data *adm1031_update_device(struct device *dev)
                 data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2);
 
                 data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0))
-                             | (adm1031_read_value(client, ADM1031_REG_STATUS(1))
-                                << 8);
-                if (data->chip_type == adm1030) {
+                    | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) << 8);
+                if (data->chip_type == adm1030)
                         data->alarm &= 0xc0ff;
-                }
 
-                for (chan=0; chan<(data->chip_type == adm1030 ? 1 : 2); chan++) {
+                for (chan = 0; chan < (data->chip_type == adm1030 ? 1 : 2);
+                     chan++) {
                         data->fan_div[chan] =
-                            adm1031_read_value(client, ADM1031_REG_FAN_DIV(chan));
+                            adm1031_read_value(client,
+                                               ADM1031_REG_FAN_DIV(chan));
                         data->fan_min[chan] =
-                            adm1031_read_value(client, ADM1031_REG_FAN_MIN(chan));
+                            adm1031_read_value(client,
+                                               ADM1031_REG_FAN_MIN(chan));
                         data->fan[chan] =
-                            adm1031_read_value(client, ADM1031_REG_FAN_SPEED(chan));
+                            adm1031_read_value(client,
+                                               ADM1031_REG_FAN_SPEED(chan));
                         data->pwm[chan] =
-                            0xf & (adm1031_read_value(client, ADM1031_REG_PWM) >>
-                                   (4*chan));
+                          (adm1031_read_value(client,
+                                        ADM1031_REG_PWM) >> (4 * chan)) & 0x0f;
                 }
                 data->last_updated = jiffies;
                 data->valid = 1;