hwmon: (ltc4222) Use permission specific SENSOR[_DEVICE]_ATTR variants

Use SENSOR[_DEVICE]_ATTR[_2]_{RO,RW,WO} to simplify the source code,
to improve readability, and to reduce the chance of inconsistencies.

Also replace any remaining S_<PERMS> in the driver with octal values.

The conversion was done automatically with coccinelle. The semantic patches
and the scripts used to generate this commit log are available at
https://github.com/groeck/coccinelle-patches/hwmon/.

This patch does not introduce functional changes. It was verified by
compiling the old and new files and comparing text and data sizes.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/ltc4222.c b/drivers/hwmon/ltc4222.c
index 88f7472..32248f3 100644 (file)
--- a/drivers/hwmon/ltc4222.c
+++ b/drivers/hwmon/ltc4222.c
@@ -94,7 +94,7 @@ static int ltc4222_get_value(struct device *dev, u8 reg)
        return val;
 }
 
-static ssize_t ltc4222_show_value(struct device *dev,
+static ssize_t ltc4222_value_show(struct device *dev,
                                  struct device_attribute *da, char *buf)
 {
        struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
@@ -106,7 +106,7 @@ static ssize_t ltc4222_show_value(struct device *dev,
        return snprintf(buf, PAGE_SIZE, "%d\n", value);
 }
 
-static ssize_t ltc4222_show_bool(struct device *dev,
+static ssize_t ltc4222_bool_show(struct device *dev,
                                 struct device_attribute *da, char *buf)
 {
        struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(da);
@@ -125,45 +125,39 @@ static ssize_t ltc4222_show_bool(struct device *dev,
 }
 
 /* Voltages */
-static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, ltc4222_show_value, NULL,
-                         LTC4222_SOURCE1);
-static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, ltc4222_show_value, NULL,
-                         LTC4222_ADIN1);
-static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, ltc4222_show_value, NULL,
-                         LTC4222_SOURCE2);
-static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, ltc4222_show_value, NULL,
-                         LTC4222_ADIN2);
+static SENSOR_DEVICE_ATTR_RO(in1_input, ltc4222_value, LTC4222_SOURCE1);
+static SENSOR_DEVICE_ATTR_RO(in2_input, ltc4222_value, LTC4222_ADIN1);
+static SENSOR_DEVICE_ATTR_RO(in3_input, ltc4222_value, LTC4222_SOURCE2);
+static SENSOR_DEVICE_ATTR_RO(in4_input, ltc4222_value, LTC4222_ADIN2);
 
 /*
  * Voltage alarms
  * UV/OV faults are associated with the input voltage, and power bad and fet
  * faults are associated with the output voltage.
  */
-static SENSOR_DEVICE_ATTR_2(in1_min_alarm, S_IRUGO, ltc4222_show_bool, NULL,
-                           LTC4222_FAULT1, FAULT_UV);
-static SENSOR_DEVICE_ATTR_2(in1_max_alarm, S_IRUGO, ltc4222_show_bool, NULL,
-                           LTC4222_FAULT1, FAULT_OV);
-static SENSOR_DEVICE_ATTR_2(in2_alarm, S_IRUGO, ltc4222_show_bool, NULL,
-                           LTC4222_FAULT1, FAULT_POWER_BAD | FAULT_FET_BAD);
-
-static SENSOR_DEVICE_ATTR_2(in3_min_alarm, S_IRUGO, ltc4222_show_bool, NULL,
-                           LTC4222_FAULT2, FAULT_UV);
-static SENSOR_DEVICE_ATTR_2(in3_max_alarm, S_IRUGO, ltc4222_show_bool, NULL,
-                           LTC4222_FAULT2, FAULT_OV);
-static SENSOR_DEVICE_ATTR_2(in4_alarm, S_IRUGO, ltc4222_show_bool, NULL,
-                           LTC4222_FAULT2, FAULT_POWER_BAD | FAULT_FET_BAD);
+static SENSOR_DEVICE_ATTR_2_RO(in1_min_alarm, ltc4222_bool, LTC4222_FAULT1,
+                              FAULT_UV);
+static SENSOR_DEVICE_ATTR_2_RO(in1_max_alarm, ltc4222_bool, LTC4222_FAULT1,
+                              FAULT_OV);
+static SENSOR_DEVICE_ATTR_2_RO(in2_alarm, ltc4222_bool, LTC4222_FAULT1,
+                              FAULT_POWER_BAD | FAULT_FET_BAD);
+
+static SENSOR_DEVICE_ATTR_2_RO(in3_min_alarm, ltc4222_bool, LTC4222_FAULT2,
+                              FAULT_UV);
+static SENSOR_DEVICE_ATTR_2_RO(in3_max_alarm, ltc4222_bool, LTC4222_FAULT2,
+                              FAULT_OV);
+static SENSOR_DEVICE_ATTR_2_RO(in4_alarm, ltc4222_bool, LTC4222_FAULT2,
+                              FAULT_POWER_BAD | FAULT_FET_BAD);
 
 /* Current (via sense resistor) */
-static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, ltc4222_show_value, NULL,
-                         LTC4222_SENSE1);
-static SENSOR_DEVICE_ATTR(curr2_input, S_IRUGO, ltc4222_show_value, NULL,
-                         LTC4222_SENSE2);
+static SENSOR_DEVICE_ATTR_RO(curr1_input, ltc4222_value, LTC4222_SENSE1);
+static SENSOR_DEVICE_ATTR_RO(curr2_input, ltc4222_value, LTC4222_SENSE2);
 
 /* Overcurrent alarm */
-static SENSOR_DEVICE_ATTR_2(curr1_max_alarm, S_IRUGO, ltc4222_show_bool, NULL,
-                           LTC4222_FAULT1, FAULT_OC);
-static SENSOR_DEVICE_ATTR_2(curr2_max_alarm, S_IRUGO, ltc4222_show_bool, NULL,
-                           LTC4222_FAULT2, FAULT_OC);
+static SENSOR_DEVICE_ATTR_2_RO(curr1_max_alarm, ltc4222_bool, LTC4222_FAULT1,
+                              FAULT_OC);
+static SENSOR_DEVICE_ATTR_2_RO(curr2_max_alarm, ltc4222_bool, LTC4222_FAULT2,
+                              FAULT_OC);
 
 static struct attribute *ltc4222_attrs[] = {
        &sensor_dev_attr_in1_input.dev_attr.attr,