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hwmon: (max1668) Convert to use with_info hwmon API
Convert to use with_info API to simplify the code and to reduce its size. This patch reduces object file size by approximately 25%. Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck
parent
355c529077
commit
c1b93b5414
@ -10,7 +10,6 @@
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#include <linux/bits.h>
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#include <linux/err.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-sysfs.h>
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#include <linux/i2c.h>
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#include <linux/init.h>
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#include <linux/module.h>
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@ -49,247 +48,144 @@ MODULE_PARM_DESC(read_only, "Don't set any values, read only mode");
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struct max1668_data {
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struct regmap *regmap;
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const struct attribute_group *groups[3];
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int channels;
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};
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static ssize_t show_temp(struct device *dev,
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struct device_attribute *devattr, char *buf)
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static int max1668_read(struct device *dev, enum hwmon_sensor_types type,
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u32 attr, int channel, long *val)
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{
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int index = to_sensor_dev_attr(devattr)->index;
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struct max1668_data *data = dev_get_drvdata(dev);
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u32 temp;
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int ret;
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ret = regmap_read(data->regmap, MAX1668_REG_TEMP(index), &temp);
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if (ret)
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return ret;
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return sprintf(buf, "%d\n", sign_extend32(temp, 7) * 1000);
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}
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static ssize_t show_temp_max(struct device *dev,
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struct device_attribute *devattr, char *buf)
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{
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int index = to_sensor_dev_attr(devattr)->index;
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struct max1668_data *data = dev_get_drvdata(dev);
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u32 temp;
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int ret;
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ret = regmap_read(data->regmap, MAX1668_REG_LIMH(index), &temp);
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if (ret)
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return ret;
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return sprintf(buf, "%d\n", sign_extend32(temp, 7) * 1000);
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}
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static ssize_t show_temp_min(struct device *dev,
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struct device_attribute *devattr, char *buf)
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{
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int index = to_sensor_dev_attr(devattr)->index;
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struct max1668_data *data = dev_get_drvdata(dev);
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u32 temp;
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int ret;
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ret = regmap_read(data->regmap, MAX1668_REG_LIML(index), &temp);
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if (ret)
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return ret;
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return sprintf(buf, "%d\n", sign_extend32(temp, 7) * 1000);
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}
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static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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int index = to_sensor_dev_attr(attr)->index;
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struct max1668_data *data = dev_get_drvdata(dev);
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u32 alarm;
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int ret;
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ret = regmap_read(data->regmap,
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index >= 8 ? MAX1668_REG_STAT1 : MAX1668_REG_STAT2,
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&alarm);
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if (ret)
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return ret;
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return sprintf(buf, "%u\n", !!(alarm & BIT(index & 7)));
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}
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static ssize_t show_fault(struct device *dev,
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struct device_attribute *devattr, char *buf)
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{
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int index = to_sensor_dev_attr(devattr)->index;
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struct max1668_data *data = dev_get_drvdata(dev);
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struct regmap *regmap = data->regmap;
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u32 alarm, temp;
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u32 regs[2] = { MAX1668_REG_STAT1, MAX1668_REG_TEMP(channel) };
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u8 regvals[2];
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u32 regval;
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int ret;
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ret = regmap_read(regmap, MAX1668_REG_STAT1, &alarm);
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if (ret)
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return ret;
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ret = regmap_read(regmap, MAX1668_REG_TEMP(index), &temp);
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if (ret)
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return ret;
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return sprintf(buf, "%u\n", (alarm & BIT(4)) && temp == 127);
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switch (attr) {
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case hwmon_temp_input:
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ret = regmap_read(regmap, MAX1668_REG_TEMP(channel), ®val);
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if (ret)
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return ret;
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*val = sign_extend32(regval, 7) * 1000;
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break;
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case hwmon_temp_min:
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ret = regmap_read(regmap, MAX1668_REG_LIML(channel), ®val);
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if (ret)
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return ret;
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*val = sign_extend32(regval, 7) * 1000;
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break;
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case hwmon_temp_max:
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ret = regmap_read(regmap, MAX1668_REG_LIMH(channel), ®val);
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if (ret)
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return ret;
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*val = sign_extend32(regval, 7) * 1000;
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break;
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case hwmon_temp_min_alarm:
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ret = regmap_read(regmap,
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channel ? MAX1668_REG_STAT2 : MAX1668_REG_STAT1,
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®val);
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if (ret)
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return ret;
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if (channel)
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*val = !!(regval & BIT(9 - channel * 2));
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else
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*val = !!(regval & BIT(5));
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break;
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case hwmon_temp_max_alarm:
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ret = regmap_read(regmap,
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channel ? MAX1668_REG_STAT2 : MAX1668_REG_STAT1,
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®val);
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if (ret)
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return ret;
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if (channel)
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*val = !!(regval & BIT(8 - channel * 2));
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else
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*val = !!(regval & BIT(6));
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break;
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case hwmon_temp_fault:
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ret = regmap_multi_reg_read(regmap, regs, regvals, 2);
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if (ret)
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return ret;
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*val = !!((regvals[0] & BIT(4)) && regvals[1] == 127);
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break;
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default:
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return -EOPNOTSUPP;
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}
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return 0;
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}
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static ssize_t set_temp_max(struct device *dev,
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struct device_attribute *devattr,
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const char *buf, size_t count)
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static int max1668_write(struct device *dev, enum hwmon_sensor_types type,
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u32 attr, int channel, long val)
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{
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int index = to_sensor_dev_attr(devattr)->index;
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struct max1668_data *data = dev_get_drvdata(dev);
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long temp;
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int ret;
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struct regmap *regmap = data->regmap;
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ret = kstrtol(buf, 10, &temp);
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if (ret < 0)
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return ret;
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val = clamp_val(val / 1000, -128, 127);
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temp = clamp_val(temp / 1000, -128, 127);
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ret = regmap_write(data->regmap, MAX1668_REG_LIMH(index), temp);
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if (ret < 0)
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count = ret;
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return count;
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switch (attr) {
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case hwmon_temp_min:
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return regmap_write(regmap, MAX1668_REG_LIML(channel), val);
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case hwmon_temp_max:
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return regmap_write(regmap, MAX1668_REG_LIMH(channel), val);
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default:
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return -EOPNOTSUPP;
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}
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}
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static ssize_t set_temp_min(struct device *dev,
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struct device_attribute *devattr,
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const char *buf, size_t count)
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static umode_t max1668_is_visible(const void *_data, enum hwmon_sensor_types type,
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u32 attr, int channel)
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{
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int index = to_sensor_dev_attr(devattr)->index;
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struct max1668_data *data = dev_get_drvdata(dev);
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long temp;
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int ret;
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const struct max1668_data *data = _data;
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ret = kstrtol(buf, 10, &temp);
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if (ret < 0)
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return ret;
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if (channel >= data->channels)
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return 0;
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temp = clamp_val(temp / 1000, -128, 127);
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ret = regmap_write(data->regmap, MAX1668_REG_LIML(index), temp);
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if (ret < 0)
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count = ret;
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return count;
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switch (attr) {
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case hwmon_temp_min:
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case hwmon_temp_max:
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return read_only ? 0444 : 0644;
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case hwmon_temp_input:
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case hwmon_temp_min_alarm:
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case hwmon_temp_max_alarm:
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return 0444;
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case hwmon_temp_fault:
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if (channel)
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return 0444;
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break;
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default:
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break;
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}
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return 0;
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}
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static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
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static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp_max,
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set_temp_max, 0);
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static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp_min,
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set_temp_min, 0);
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static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
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static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO, show_temp_max,
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set_temp_max, 1);
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static SENSOR_DEVICE_ATTR(temp2_min, S_IRUGO, show_temp_min,
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set_temp_min, 1);
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static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
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static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO, show_temp_max,
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set_temp_max, 2);
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static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO, show_temp_min,
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set_temp_min, 2);
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static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3);
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static SENSOR_DEVICE_ATTR(temp4_max, S_IRUGO, show_temp_max,
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set_temp_max, 3);
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static SENSOR_DEVICE_ATTR(temp4_min, S_IRUGO, show_temp_min,
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set_temp_min, 3);
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static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4);
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static SENSOR_DEVICE_ATTR(temp5_max, S_IRUGO, show_temp_max,
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set_temp_max, 4);
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static SENSOR_DEVICE_ATTR(temp5_min, S_IRUGO, show_temp_min,
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set_temp_min, 4);
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static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 14);
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static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 13);
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static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 7);
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static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 6);
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static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, show_alarm, NULL, 5);
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static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_alarm, NULL, 4);
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static SENSOR_DEVICE_ATTR(temp4_min_alarm, S_IRUGO, show_alarm, NULL, 3);
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static SENSOR_DEVICE_ATTR(temp4_max_alarm, S_IRUGO, show_alarm, NULL, 2);
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static SENSOR_DEVICE_ATTR(temp5_min_alarm, S_IRUGO, show_alarm, NULL, 1);
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static SENSOR_DEVICE_ATTR(temp5_max_alarm, S_IRUGO, show_alarm, NULL, 0);
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static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_fault, NULL, 1);
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static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_fault, NULL, 2);
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static SENSOR_DEVICE_ATTR(temp4_fault, S_IRUGO, show_fault, NULL, 3);
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static SENSOR_DEVICE_ATTR(temp5_fault, S_IRUGO, show_fault, NULL, 4);
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/* Attributes common to MAX1668, MAX1989 and MAX1805 */
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static struct attribute *max1668_attribute_common[] = {
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&sensor_dev_attr_temp1_max.dev_attr.attr,
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&sensor_dev_attr_temp1_min.dev_attr.attr,
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&sensor_dev_attr_temp1_input.dev_attr.attr,
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&sensor_dev_attr_temp2_max.dev_attr.attr,
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&sensor_dev_attr_temp2_min.dev_attr.attr,
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&sensor_dev_attr_temp2_input.dev_attr.attr,
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&sensor_dev_attr_temp3_max.dev_attr.attr,
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&sensor_dev_attr_temp3_min.dev_attr.attr,
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&sensor_dev_attr_temp3_input.dev_attr.attr,
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&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
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&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
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&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
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&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
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&sensor_dev_attr_temp3_max_alarm.dev_attr.attr,
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&sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
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&sensor_dev_attr_temp2_fault.dev_attr.attr,
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&sensor_dev_attr_temp3_fault.dev_attr.attr,
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static const struct hwmon_channel_info * const max1668_info[] = {
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HWMON_CHANNEL_INFO(temp,
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HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
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HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM,
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HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
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HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM |
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HWMON_T_FAULT,
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HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
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HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM |
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HWMON_T_FAULT,
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HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
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HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM |
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HWMON_T_FAULT,
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HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
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HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM |
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HWMON_T_FAULT),
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NULL
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};
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/* Attributes not present on MAX1805 */
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static struct attribute *max1668_attribute_unique[] = {
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&sensor_dev_attr_temp4_max.dev_attr.attr,
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&sensor_dev_attr_temp4_min.dev_attr.attr,
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&sensor_dev_attr_temp4_input.dev_attr.attr,
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&sensor_dev_attr_temp5_max.dev_attr.attr,
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&sensor_dev_attr_temp5_min.dev_attr.attr,
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&sensor_dev_attr_temp5_input.dev_attr.attr,
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&sensor_dev_attr_temp4_max_alarm.dev_attr.attr,
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&sensor_dev_attr_temp4_min_alarm.dev_attr.attr,
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&sensor_dev_attr_temp5_max_alarm.dev_attr.attr,
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&sensor_dev_attr_temp5_min_alarm.dev_attr.attr,
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&sensor_dev_attr_temp4_fault.dev_attr.attr,
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&sensor_dev_attr_temp5_fault.dev_attr.attr,
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NULL
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static const struct hwmon_ops max1668_hwmon_ops = {
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.is_visible = max1668_is_visible,
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.read = max1668_read,
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.write = max1668_write,
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};
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static umode_t max1668_attribute_mode(struct kobject *kobj,
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struct attribute *attr, int index)
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{
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umode_t ret = S_IRUGO;
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if (read_only)
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return ret;
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if (attr == &sensor_dev_attr_temp1_max.dev_attr.attr ||
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attr == &sensor_dev_attr_temp2_max.dev_attr.attr ||
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attr == &sensor_dev_attr_temp3_max.dev_attr.attr ||
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attr == &sensor_dev_attr_temp4_max.dev_attr.attr ||
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attr == &sensor_dev_attr_temp5_max.dev_attr.attr ||
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attr == &sensor_dev_attr_temp1_min.dev_attr.attr ||
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attr == &sensor_dev_attr_temp2_min.dev_attr.attr ||
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attr == &sensor_dev_attr_temp3_min.dev_attr.attr ||
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attr == &sensor_dev_attr_temp4_min.dev_attr.attr ||
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attr == &sensor_dev_attr_temp5_min.dev_attr.attr)
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ret |= S_IWUSR;
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return ret;
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}
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static const struct attribute_group max1668_group_common = {
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.attrs = max1668_attribute_common,
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.is_visible = max1668_attribute_mode
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};
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static const struct attribute_group max1668_group_unique = {
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.attrs = max1668_attribute_unique,
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.is_visible = max1668_attribute_mode
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static const struct hwmon_chip_info max1668_chip_info = {
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.ops = &max1668_hwmon_ops,
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.info = max1668_info,
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};
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/* Return 0 if detection is successful, -ENODEV otherwise */
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@ -391,13 +287,8 @@ static int max1668_probe(struct i2c_client *client)
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data->channels = (uintptr_t)i2c_get_match_data(client);
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/* sysfs hooks */
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data->groups[0] = &max1668_group_common;
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if (data->channels == 5)
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data->groups[1] = &max1668_group_unique;
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hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
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data, data->groups);
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hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data,
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&max1668_chip_info, NULL);
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return PTR_ERR_OR_ZERO(hwmon_dev);
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}
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