hwmon: (w83627ehf) Only expose in6 or temp3 on the W83667HG

The pin for in6 and temp3 is shared on the W83667HG, so only one of
these features can be supported on any given system. Let the driver
select which one depending on the temp3 disabled bit.
Signed-off-by: Gong Jun <JGong@nuvoton.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

drivers/hwmon/w83627ehf.c

@@ -303,6 +303,9 @@ struct w83627ehf_data {
 
 	u8 vid;
 	u8 vrm;
+
+	u8 temp3_disable;
+	u8 in6_skip;
 };
 
 struct w83627ehf_sio_data {
@@ -871,25 +874,37 @@ show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
 	return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
 }
 
-static struct sensor_device_attribute sda_temp[] = {
+static struct sensor_device_attribute sda_temp_input[] = {
 	SENSOR_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0),
 	SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0),
 	SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 1),
+};
+
+static struct sensor_device_attribute sda_temp_max[] = {
 	SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp1_max,
 		    store_temp1_max, 0),
 	SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max,
 		    store_temp_max, 0),
 	SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max,
 		    store_temp_max, 1),
+};
+
+static struct sensor_device_attribute sda_temp_max_hyst[] = {
 	SENSOR_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp1_max_hyst,
 		    store_temp1_max_hyst, 0),
 	SENSOR_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
 		    store_temp_max_hyst, 0),
 	SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
 		    store_temp_max_hyst, 1),
+};
+
+static struct sensor_device_attribute sda_temp_alarm[] = {
 	SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
 	SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
 	SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
+};
+
+static struct sensor_device_attribute sda_temp_type[] = {
 	SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
 	SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
 	SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
@@ -1186,6 +1201,8 @@ static void w83627ehf_device_remove_files(struct device *dev)
 	for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++)
 		device_remove_file(dev, &sda_sf3_arrays_fan4[i].dev_attr);
 	for (i = 0; i < data->in_num; i++) {
+		if ((i == 6) && data->in6_skip)
+			continue;
 		device_remove_file(dev, &sda_in_input[i].dev_attr);
 		device_remove_file(dev, &sda_in_alarm[i].dev_attr);
 		device_remove_file(dev, &sda_in_min[i].dev_attr);
@@ -1204,8 +1221,15 @@ static void w83627ehf_device_remove_files(struct device *dev)
 		device_remove_file(dev, &sda_target_temp[i].dev_attr);
 		device_remove_file(dev, &sda_tolerance[i].dev_attr);
 	}
-	for (i = 0; i < ARRAY_SIZE(sda_temp); i++)
-		device_remove_file(dev, &sda_temp[i].dev_attr);
+	for (i = 0; i < 3; i++) {
+		if ((i == 2) && data->temp3_disable)
+			continue;
+		device_remove_file(dev, &sda_temp_input[i].dev_attr);
+		device_remove_file(dev, &sda_temp_max[i].dev_attr);
+		device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr);
+		device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
+		device_remove_file(dev, &sda_temp_type[i].dev_attr);
+	}
 
 	device_remove_file(dev, &dev_attr_name);
 	device_remove_file(dev, &dev_attr_cpu0_vid);
@@ -1227,6 +1251,8 @@ static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
 	for (i = 0; i < 2; i++) {
 		tmp = w83627ehf_read_value(data,
 					   W83627EHF_REG_TEMP_CONFIG[i]);
+		if ((i == 1) && data->temp3_disable)
+			continue;
 		if (tmp & 0x01)
 			w83627ehf_write_value(data,
 					      W83627EHF_REG_TEMP_CONFIG[i],
@@ -1282,6 +1308,13 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
 	/* 667HG has 3 pwms */
 	data->pwm_num = (sio_data->kind == w83667hg) ? 3 : 4;
 
+	/* Check temp3 configuration bit for 667HG */
+	if (sio_data->kind == w83667hg) {
+		data->temp3_disable = w83627ehf_read_value(data,
+					W83627EHF_REG_TEMP_CONFIG[1]) & 0x01;
+		data->in6_skip = !data->temp3_disable;
+	}
+
 	/* Initialize the chip */
 	w83627ehf_init_device(data);
 
@@ -1378,7 +1411,9 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
 				goto exit_remove;
 		}
 
-	for (i = 0; i < data->in_num; i++)
+	for (i = 0; i < data->in_num; i++) {
+		if ((i == 6) && data->in6_skip)
+			continue;
 		if ((err = device_create_file(dev, &sda_in_input[i].dev_attr))
 			|| (err = device_create_file(dev,
 				&sda_in_alarm[i].dev_attr))
@@ -1387,6 +1422,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
 			|| (err = device_create_file(dev,
 				&sda_in_max[i].dev_attr)))
 			goto exit_remove;
+	}
 
 	for (i = 0; i < 5; i++) {
 		if (data->has_fan & (1 << i)) {
@@ -1414,9 +1450,21 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
 		}
 	}
 
-	for (i = 0; i < ARRAY_SIZE(sda_temp); i++)
-		if ((err = device_create_file(dev, &sda_temp[i].dev_attr)))
+	for (i = 0; i < 3; i++) {
+		if ((i == 2) && data->temp3_disable)
+			continue;
+		if ((err = device_create_file(dev,
+				&sda_temp_input[i].dev_attr))
+			|| (err = device_create_file(dev,
+				&sda_temp_max[i].dev_attr))
+			|| (err = device_create_file(dev,
+				&sda_temp_max_hyst[i].dev_attr))
+			|| (err = device_create_file(dev,
+				&sda_temp_alarm[i].dev_attr))
+			|| (err = device_create_file(dev,
+				&sda_temp_type[i].dev_attr)))
 			goto exit_remove;
+	}
 
 	err = device_create_file(dev, &dev_attr_name);
 	if (err)