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path: root/drivers/hwmon/gl520sm.c
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Diffstat (limited to 'drivers/hwmon/gl520sm.c')
-rw-r--r--drivers/hwmon/gl520sm.c73
1 files changed, 40 insertions, 33 deletions
diff --git a/drivers/hwmon/gl520sm.c b/drivers/hwmon/gl520sm.c
index dee93ec87d02..4ff32ee67fb6 100644
--- a/drivers/hwmon/gl520sm.c
+++ b/drivers/hwmon/gl520sm.c
@@ -200,19 +200,21 @@ static struct gl520_data *gl520_update_device(struct device *dev)
* Sysfs stuff
*/
-static ssize_t get_cpu_vid(struct device *dev, struct device_attribute *attr,
- char *buf)
+static ssize_t cpu0_vid_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct gl520_data *data = gl520_update_device(dev);
return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
}
-static DEVICE_ATTR(cpu0_vid, S_IRUGO, get_cpu_vid, NULL);
+static DEVICE_ATTR_RO(cpu0_vid);
-#define VDD_FROM_REG(val) (((val) * 95 + 2) / 4)
-#define VDD_TO_REG(val) clamp_val((((val) * 4 + 47) / 95), 0, 255)
+#define VDD_FROM_REG(val) DIV_ROUND_CLOSEST((val) * 95, 4)
+#define VDD_CLAMP(val) clamp_val(val, 0, 255 * 95 / 4)
+#define VDD_TO_REG(val) DIV_ROUND_CLOSEST(VDD_CLAMP(val) * 4, 95)
-#define IN_FROM_REG(val) ((val) * 19)
-#define IN_TO_REG(val) clamp_val((((val) + 9) / 19), 0, 255)
+#define IN_FROM_REG(val) ((val) * 19)
+#define IN_CLAMP(val) clamp_val(val, 0, 255 * 19)
+#define IN_TO_REG(val) DIV_ROUND_CLOSEST(IN_CLAMP(val), 19)
static ssize_t get_in_input(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -349,8 +351,13 @@ static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR,
#define DIV_FROM_REG(val) (1 << (val))
#define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : (480000 / ((val) << (div))))
-#define FAN_TO_REG(val, div) ((val) <= 0 ? 0 : \
- clamp_val((480000 + ((val) << ((div)-1))) / ((val) << (div)), 1, 255))
+
+#define FAN_BASE(div) (480000 >> (div))
+#define FAN_CLAMP(val, div) clamp_val(val, FAN_BASE(div) / 255, \
+ FAN_BASE(div))
+#define FAN_TO_REG(val, div) ((val) == 0 ? 0 : \
+ DIV_ROUND_CLOSEST(480000, \
+ FAN_CLAMP(val, div) << (div)))
static ssize_t get_fan_input(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -381,8 +388,8 @@ static ssize_t get_fan_div(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[n]));
}
-static ssize_t get_fan_off(struct device *dev, struct device_attribute *attr,
- char *buf)
+static ssize_t fan1_off_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct gl520_data *data = gl520_update_device(dev);
return sprintf(buf, "%d\n", data->fan_off);
@@ -476,8 +483,9 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
return count;
}
-static ssize_t set_fan_off(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
+static ssize_t fan1_off_store(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
{
struct gl520_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
@@ -510,12 +518,11 @@ static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
get_fan_div, set_fan_div, 0);
static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
get_fan_div, set_fan_div, 1);
-static DEVICE_ATTR(fan1_off, S_IRUGO | S_IWUSR,
- get_fan_off, set_fan_off);
+static DEVICE_ATTR_RW(fan1_off);
-#define TEMP_FROM_REG(val) (((val) - 130) * 1000)
-#define TEMP_TO_REG(val) clamp_val(((((val) < 0 ? \
- (val) - 500 : (val) + 500) / 1000) + 130), 0, 255)
+#define TEMP_FROM_REG(val) (((val) - 130) * 1000)
+#define TEMP_CLAMP(val) clamp_val(val, -130000, 125000)
+#define TEMP_TO_REG(val) (DIV_ROUND_CLOSEST(TEMP_CLAMP(val), 1000) + 130)
static ssize_t get_temp_input(struct device *dev, struct device_attribute *attr,
char *buf)
@@ -596,29 +603,30 @@ static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR,
get_temp_max_hyst, set_temp_max_hyst, 1);
-static ssize_t get_alarms(struct device *dev, struct device_attribute *attr,
- char *buf)
+static ssize_t alarms_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct gl520_data *data = gl520_update_device(dev);
return sprintf(buf, "%d\n", data->alarms);
}
-static ssize_t get_beep_enable(struct device *dev, struct device_attribute
- *attr, char *buf)
+static ssize_t beep_enable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct gl520_data *data = gl520_update_device(dev);
return sprintf(buf, "%d\n", data->beep_enable);
}
-static ssize_t get_beep_mask(struct device *dev, struct device_attribute *attr,
- char *buf)
+static ssize_t beep_mask_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct gl520_data *data = gl520_update_device(dev);
return sprintf(buf, "%d\n", data->beep_mask);
}
-static ssize_t set_beep_enable(struct device *dev, struct device_attribute
- *attr, const char *buf, size_t count)
+static ssize_t beep_enable_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct gl520_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
@@ -641,8 +649,9 @@ static ssize_t set_beep_enable(struct device *dev, struct device_attribute
return count;
}
-static ssize_t set_beep_mask(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
+static ssize_t beep_mask_store(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
{
struct gl520_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
@@ -661,11 +670,9 @@ static ssize_t set_beep_mask(struct device *dev, struct device_attribute *attr,
return count;
}
-static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL);
-static DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR,
- get_beep_enable, set_beep_enable);
-static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR,
- get_beep_mask, set_beep_mask);
+static DEVICE_ATTR_RO(alarms);
+static DEVICE_ATTR_RW(beep_enable);
+static DEVICE_ATTR_RW(beep_mask);
static ssize_t get_alarm(struct device *dev, struct device_attribute *attr,
char *buf)