Convert function macros into functions to make the code
easier to read and reduce code size.
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
drivers/hwmon/jc42.c | 182 ++++++++++++++++++++------------------------------
1 file changed, 72 insertions(+), 110 deletions(-)
diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c
index ba1a3f7..baa912a 100644
--- a/drivers/hwmon/jc42.c
+++ b/drivers/hwmon/jc42.c
@@ -161,6 +161,21 @@ static struct jc42_chips jc42_chips[] = {
{ STM_MANID, STTS3000_DEVID, STTS3000_DEVID_MASK },
};
+enum temp_index {
+ t_input = 0,
+ t_crit,
+ t_min,
+ t_max,
+ t_num_temp
+};
+
+static const u8 temp_regs[t_num_temp] = {
+ [t_input] = JC42_REG_TEMP,
+ [t_crit] = JC42_REG_TEMP_CRITICAL,
+ [t_min] = JC42_REG_TEMP_LOWER,
+ [t_max] = JC42_REG_TEMP_UPPER,
+};
+
/* Each client has this additional data */
struct jc42_data {
struct i2c_client *client;
@@ -170,10 +185,7 @@ struct jc42_data {
unsigned long last_updated; /* In jiffies */
u16 orig_config; /* original configuration */
u16 config; /* current configuration */
- u16 temp_input; /* Temperatures */
- u16 temp_crit;
- u16 temp_min;
- u16 temp_max;
+ u16 temp[t_num_temp];/* Temperatures */
};
#define JC42_TEMP_MIN_EXTENDED (-40000)
@@ -207,40 +219,19 @@ static struct jc42_data *jc42_update_device(struct device *dev)
struct jc42_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
struct jc42_data *ret = data;
- int val;
+ int i, val;
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
- val = i2c_smbus_read_word_swapped(client, JC42_REG_TEMP);
- if (val < 0) {
- ret = ERR_PTR(val);
- goto abort;
- }
- data->temp_input = val;
-
- val = i2c_smbus_read_word_swapped(client,
- JC42_REG_TEMP_CRITICAL);
- if (val < 0) {
- ret = ERR_PTR(val);
- goto abort;
- }
- data->temp_crit = val;
-
- val = i2c_smbus_read_word_swapped(client, JC42_REG_TEMP_LOWER);
- if (val < 0) {
- ret = ERR_PTR(val);
- goto abort;
+ for (i = 0; i < t_num_temp; i++) {
+ val = i2c_smbus_read_word_swapped(client, temp_regs[i]);
+ if (val < 0) {
+ ret = ERR_PTR(val);
+ goto abort;
+ }
+ data->temp[i] = val;
}
- data->temp_min = val;
-
- val = i2c_smbus_read_word_swapped(client, JC42_REG_TEMP_UPPER);
- if (val < 0) {
- ret = ERR_PTR(val);
- goto abort;
- }
- data->temp_max = val;
-
data->last_updated = jiffies;
data->valid = true;
}
@@ -249,79 +240,55 @@ abort:
return ret;
}
-/* sysfs stuff */
-
-/* read routines for temperature limits */
-#define show(value) \
-static ssize_t show_##value(struct device *dev, \
- struct device_attribute *attr, \
- char *buf) \
-{ \
- struct jc42_data *data = jc42_update_device(dev); \
- if (IS_ERR(data)) \
- return PTR_ERR(data); \
- return sprintf(buf, "%d\n", jc42_temp_from_reg(data->value)); \
-}
+/* sysfs functions */
-show(temp_input);
-show(temp_crit);
-show(temp_min);
-show(temp_max);
-
-/* read routines for hysteresis values */
-static ssize_t show_temp_crit_hyst(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+ char *buf)
{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct jc42_data *data = jc42_update_device(dev);
- int temp, hyst;
-
if (IS_ERR(data))
return PTR_ERR(data);
-
- temp = jc42_temp_from_reg(data->temp_crit);
- hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK)
- >> JC42_CFG_HYST_SHIFT];
- return sprintf(buf, "%d\n", temp - hyst);
+ return sprintf(buf, "%d\n",
+ jc42_temp_from_reg(data->temp[attr->index]));
}
-static ssize_t show_temp_max_hyst(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t show_temp_hyst(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct jc42_data *data = jc42_update_device(dev);
int temp, hyst;
if (IS_ERR(data))
return PTR_ERR(data);
- temp = jc42_temp_from_reg(data->temp_max);
+ temp = jc42_temp_from_reg(data->temp[attr->index]);
hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK)
>> JC42_CFG_HYST_SHIFT];
return sprintf(buf, "%d\n", temp - hyst);
}
-/* write routines */
-#define set(value, reg) \
-static ssize_t set_##value(struct device *dev, \
- struct device_attribute *attr, \
- const char *buf, size_t count) \
-{ \
- struct jc42_data *data = dev_get_drvdata(dev); \
- int err, ret = count; \
- long val; \
- if (kstrtol(buf, 10, &val) < 0) \
- return -EINVAL; \
- mutex_lock(&data->update_lock); \
- data->value = jc42_temp_to_reg(val, data->extended); \
- err = i2c_smbus_write_word_swapped(data->client, reg, data->value); \
- if (err < 0) \
- ret = err; \
- mutex_unlock(&data->update_lock); \
- return ret; \
-}
+static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct jc42_data *data = dev_get_drvdata(dev);
+ int err, ret = count;
+ int nr = attr->index;
+ long val;
-set(temp_min, JC42_REG_TEMP_LOWER);
-set(temp_max, JC42_REG_TEMP_UPPER);
-set(temp_crit, JC42_REG_TEMP_CRITICAL);
+ if (kstrtol(buf, 10, &val) < 0)
+ return -EINVAL;
+ mutex_lock(&data->update_lock);
+ data->temp[nr] = jc42_temp_to_reg(val, data->extended);
+ err = i2c_smbus_write_word_swapped(data->client, temp_regs[nr],
+ data->temp[nr]);
+ if (err < 0)
+ ret = err;
+ mutex_unlock(&data->update_lock);
+ return ret;
+}
/*
* JC42.4 compliant chips only support four hysteresis values.
@@ -340,7 +307,7 @@ static ssize_t set_temp_crit_hyst(struct device *dev,
if (kstrtoul(buf, 10, &val) < 0)
return -EINVAL;
- diff = jc42_temp_from_reg(data->temp_crit) - val;
+ diff = jc42_temp_from_reg(data->temp[t_crit]) - val;
hyst = 0;
if (diff > 0) {
if (diff < 2250)
@@ -372,25 +339,20 @@ static ssize_t show_alarm(struct device *dev,
if (IS_ERR(data))
return PTR_ERR(data);
- val = data->temp_input;
+ val = data->temp[t_input];
if (bit != JC42_ALARM_CRIT_BIT && (data->config & JC42_CFG_CRIT_ONLY))
val = 0;
return sprintf(buf, "%u\n", (val >> bit) & 1);
}
-static DEVICE_ATTR(temp1_input, S_IRUGO,
- show_temp_input, NULL);
-static DEVICE_ATTR(temp1_crit, S_IRUGO,
- show_temp_crit, set_temp_crit);
-static DEVICE_ATTR(temp1_min, S_IRUGO,
- show_temp_min, set_temp_min);
-static DEVICE_ATTR(temp1_max, S_IRUGO,
- show_temp_max, set_temp_max);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input);
+static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp, set_temp, t_crit);
+static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp, set_temp, t_min);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, set_temp, t_max);
-static DEVICE_ATTR(temp1_crit_hyst, S_IRUGO,
- show_temp_crit_hyst, set_temp_crit_hyst);
-static DEVICE_ATTR(temp1_max_hyst, S_IRUGO,
- show_temp_max_hyst, NULL);
+static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_hyst,
+ set_temp_crit_hyst, t_crit);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp_hyst, NULL, t_max);
static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL,
JC42_ALARM_CRIT_BIT);
@@ -400,12 +362,12 @@ static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL,
JC42_ALARM_MAX_BIT);
static struct attribute *jc42_attributes[] = {
- &dev_attr_temp1_input.attr,
- &dev_attr_temp1_crit.attr,
- &dev_attr_temp1_min.attr,
- &dev_attr_temp1_max.attr,
- &dev_attr_temp1_crit_hyst.attr,
- &dev_attr_temp1_max_hyst.attr,
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_crit.dev_attr.attr,
+ &sensor_dev_attr_temp1_min.dev_attr.attr,
+ &sensor_dev_attr_temp1_max.dev_attr.attr,
+ &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
@@ -420,12 +382,12 @@ static umode_t jc42_attribute_mode(struct kobject *kobj,
unsigned int config = data->config;
bool readonly;
- if (attr == &dev_attr_temp1_crit.attr)
+ if (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr)
readonly = config & JC42_CFG_TCRIT_LOCK;
- else if (attr == &dev_attr_temp1_min.attr ||
- attr == &dev_attr_temp1_max.attr)
+ else if (attr == &sensor_dev_attr_temp1_min.dev_attr.attr ||
+ attr == &sensor_dev_attr_temp1_max.dev_attr.attr)
readonly = config & JC42_CFG_EVENT_LOCK;
- else if (attr == &dev_attr_temp1_crit_hyst.attr)
+ else if (attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr)
readonly = config & (JC42_CFG_EVENT_LOCK | JC42_CFG_TCRIT_LOCK);
else
readonly = true;
--
1.7.9.7
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