linux-imx
Public
Source
committed 69dd7cdbeca54
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static inline int tmp103_reg_to_mc(s8 val)55
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{56
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return val * 1000;57
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}58
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static inline u8 tmp103_mc_to_reg(int val)60
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{61
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return DIV_ROUND_CLOSEST(val, 1000);62
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}63
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static ssize_t tmp103_show_temp(struct device *dev,65
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struct device_attribute *attr,66
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char *buf)64
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static ssize_t tmp103_temp_show(struct device *dev,65
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struct device_attribute *attr, char *buf)67
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{68
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struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);69
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struct regmap *regmap = dev_get_drvdata(dev);70
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unsigned int regval;71
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int ret;72
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ret = regmap_read(regmap, sda->index, ®val);74
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if (ret < 0)75
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return ret;76
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return sprintf(buf, "%d\n", tmp103_reg_to_mc(regval));78
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}79
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static ssize_t tmp103_set_temp(struct device *dev,81
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struct device_attribute *attr,82
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const char *buf, size_t count)79
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static ssize_t tmp103_temp_store(struct device *dev,80
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struct device_attribute *attr,81
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const char *buf, size_t count)83
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{84
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struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);85
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struct regmap *regmap = dev_get_drvdata(dev);86
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long val;87
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int ret;88
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if (kstrtol(buf, 10, &val) < 0)90
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return -EINVAL;91
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val = clamp_val(val, -55000, 127000);93
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ret = regmap_write(regmap, sda->index, tmp103_mc_to_reg(val));94
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return ret ? ret : count;95
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}96
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static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, tmp103_show_temp, NULL ,98
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TMP103_TEMP_REG);96
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static SENSOR_DEVICE_ATTR_RO(temp1_input, tmp103_temp, TMP103_TEMP_REG);99
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static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, tmp103_show_temp,101
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tmp103_set_temp, TMP103_TLOW_REG);98
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static SENSOR_DEVICE_ATTR_RW(temp1_min, tmp103_temp, TMP103_TLOW_REG);102
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static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, tmp103_show_temp,104
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tmp103_set_temp, TMP103_THIGH_REG);100
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static SENSOR_DEVICE_ATTR_RW(temp1_max, tmp103_temp, TMP103_THIGH_REG);105
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static struct attribute *tmp103_attrs[] = {107
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&sensor_dev_attr_temp1_input.dev_attr.attr,108
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&sensor_dev_attr_temp1_min.dev_attr.attr,109
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&sensor_dev_attr_temp1_max.dev_attr.attr,110
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NULL111
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};112
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ATTRIBUTE_GROUPS(tmp103);113
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static bool tmp103_regmap_is_volatile(struct device *dev, unsigned int reg)