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hwmon: (nct7802) Add autopoint attributes

PATCH In review Constantine Shulyupin 2 participants 2 messages Jul 8, 2015 – Jul 9, 2015 Hardware monitoring

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#0 lore raw

PATCH 1/1 hwmon: (nct7802) Add autopoint attributes

Introduced PWM_REG, TEMP_REG, auto_pointX_temp, auto_pointX_pwm, nct7802_auto_point_attrs, nct7802_auto_point_group.

---
 drivers/hwmon/nct7802.c | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
drivers/hwmon/nct7802.c +41 -0
index 2f6bbe5..a3f3063 100644
@@ -153,6 +153,10 @@ static ssize_t store_pwm(struct device *dev, struct device_attribute *devattr,
 	return err ? : count;
 }
 
+#define PWM_REG(_name, _reg) \
+	SENSOR_DEVICE_ATTR(_name, S_IRUGO | S_IWUSR, \
+				  show_pwm, store_pwm, _reg)
+
 static ssize_t show_pwm_enable(struct device *dev,
 			       struct device_attribute *attr, char *buf)
 {
@@ -404,6 +408,10 @@ static ssize_t store_temp(struct device *dev, struct device_attribute *attr,
 	return err ? : count;
 }
 
+#define TEMP_REG(_name, _high, _low) \
+	SENSOR_DEVICE_ATTR_2(_name, S_IRUGO | S_IWUSR, \
+				    show_temp, store_temp, _high, _low)
+
 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
 			char *buf)
 {
@@ -890,11 +898,44 @@ static struct attribute_group nct7802_pwm_group = {
 	.attrs = nct7802_pwm_attrs,
 };
 
+/* 7.2.115... 0x80-0x83, 0x84 Temperature (X-axis) transition */
+static TEMP_REG(auto_point1_temp, 0x80, 0);
+static TEMP_REG(auto_point2_temp, 0x81, 0);
+static TEMP_REG(auto_point3_temp, 0x82, 0);
+static TEMP_REG(auto_point4_temp, 0x83, 0);
+static TEMP_REG(auto_point_crit_temp, 0x84, 0);
+
+/* 7.2.120... 0x85-0x88 PWM (Y-axis) transition */
+static PWM_REG(auto_point1_pwm, 0x85);
+static PWM_REG(auto_point2_pwm, 0x86);
+static PWM_REG(auto_point3_pwm, 0x87);
+static PWM_REG(auto_point4_pwm, 0x88);
+
+static struct attribute *nct7802_auto_point_attrs[] = {
+	&sensor_dev_attr_auto_point1_temp.dev_attr.attr,
+	&sensor_dev_attr_auto_point2_temp.dev_attr.attr,
+	&sensor_dev_attr_auto_point3_temp.dev_attr.attr,
+	&sensor_dev_attr_auto_point4_temp.dev_attr.attr,
+	&sensor_dev_attr_auto_point_crit_temp.dev_attr.attr,
+
+	&sensor_dev_attr_auto_point1_pwm.dev_attr.attr,
+	&sensor_dev_attr_auto_point2_pwm.dev_attr.attr,
+	&sensor_dev_attr_auto_point3_pwm.dev_attr.attr,
+	&sensor_dev_attr_auto_point4_pwm.dev_attr.attr,
+
+	NULL
+};
+
+static struct attribute_group nct7802_auto_point_group = {
+	.attrs = nct7802_auto_point_attrs,
+};
+
 static const struct attribute_group *nct7802_groups[] = {
 	&nct7802_temp_group,
 	&nct7802_in_group,
 	&nct7802_fan_group,
 	&nct7802_pwm_group,
+	&nct7802_auto_point_group,
 	NULL
 };
 
Signature · 7 lines
1.9.1


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#1 lore raw

Hi Constantine,

Quoted 24 lines · Constantine Shulyupin

Introduced PWM_REG, TEMP_REG, auto_pointX_temp, auto_pointX_pwm, nct7802_auto_point_attrs, nct7802_auto_point_group.

---
 drivers/hwmon/nct7802.c | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
drivers/hwmon/nct7802.c +4 -0
index 2f6bbe5..a3f3063 100644
@@ -153,6 +153,10 @@ static ssize_t store_pwm(struct device *dev, struct device_attribute *devattr,
 	return err ? : count;
 }
 
+#define PWM_REG(_name, _reg) \
+	SENSOR_DEVICE_ATTR(_name, S_IRUGO | S_IWUSR, \
+				  show_pwm, store_pwm, _reg)
+
 static ssize_t show_pwm_enable(struct device *dev,
 			       struct device_attribute *attr, char *buf)
 {

drivers/hwmon/nct7802.c static ssize_t store_temp(struct device *dev, struct device_attribute *attr, · line 414

Quoted 7 lines
drivers/hwmon/nct7802.c +4 -0
@@ -404,6 +408,10 @@ static ssize_t store_temp(struct device *dev, struct device_attribute *attr,
 	return err ? : count;
 }
 
+#define TEMP_REG(_name, _high, _low) \
+	SENSOR_DEVICE_ATTR_2(_name, S_IRUGO | S_IWUSR, \
+				    show_temp, store_temp, _high, _low)
+

Please drop those macros and use SENSOR_DEVICE_ATTR.. directly.

drivers/hwmon/nct7802.c static struct attribute_group nct7802_pwm_group = { · line 906

Quoted 13 lines
drivers/hwmon/nct7802.c +6 -0
 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
 			char *buf)
 {
@@ -890,11 +898,44 @@ static struct attribute_group nct7802_pwm_group = {
 	.attrs = nct7802_pwm_attrs,
 };
 
+/* 7.2.115... 0x80-0x83, 0x84 Temperature (X-axis) transition */
+static TEMP_REG(auto_point1_temp, 0x80, 0);
+static TEMP_REG(auto_point2_temp, 0x81, 0);
+static TEMP_REG(auto_point3_temp, 0x82, 0);
+static TEMP_REG(auto_point4_temp, 0x83, 0);
+static TEMP_REG(auto_point_crit_temp, 0x84, 0);

I am not really happy with the crit_temp attribute. Usually we have just gave this another index, ie point5_temp.

Your code is missing the other two tables at register addresses 0x90+ and 0xa0+. Any reason for not including those ?

It might be better to use the attribute names we have used in other drivers, ie pwm[123]_auto_point[1-5]_pwm and pwm[1-3]_auto_point[1-5]_temp and support the other two tables as well. One option for the critical pwm value might be to make it read-only and always report it as 255 for consistency.

Thanks,
Guenter

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