Source of da9055-hwmon.c - linux-imx - PHYTEC BitBucket (Stash)

Ignore whitespace
Show whitespace characters
Hide e-diff
Unified diff
Side-by-side diff
Source viewDiff to previous
 
                1 << channel);
​
}
​
static int da9055_disable_auto_mode(struct da9055 *da9055, int channel)
{
​
    return da9055_reg_update(da9055, DA9055_REG_ADC_CONT, 1 << channel, 0);
}
​
static ssize_t da9055_read_auto_ch(struct device *dev,
                struct device_attribute *devattr, char *buf)
static ssize_t da9055_auto_ch_show(struct device *dev,
                   struct device_attribute *devattr,
                   char *buf)
{
    struct da9055_hwmon *hwmon = dev_get_drvdata(dev);
    int ret, adc;
    int channel = to_sensor_dev_attr(devattr)->index;
​
    mutex_lock(&hwmon->hwmon_lock);
​
    ret = da9055_enable_auto_mode(hwmon->da9055, channel);
    if (ret < 0)
        goto hwmon_err;
Show more
​
    return sprintf(buf, "%d\n", volt_reg_to_mv(adc, channel));
​
hwmon_err_release:
    da9055_disable_auto_mode(hwmon->da9055, channel);
hwmon_err:
    mutex_unlock(&hwmon->hwmon_lock);
    return ret;
}
​
static ssize_t da9055_read_tjunc(struct device *dev,
static ssize_t da9055_tjunc_show(struct device *dev,
                 struct device_attribute *devattr, char *buf)
{
    struct da9055_hwmon *hwmon = dev_get_drvdata(dev);
    int tjunc;
    int toffset;
​
    tjunc = da9055_adc_manual_read(hwmon, DA9055_ADC_TJUNC);
    if (tjunc < 0)
        return tjunc;
​
Show more
        return toffset;
​
    /*
     * Degrees celsius = -0.4084 * (ADC_RES - T_OFFSET) + 307.6332
     * T_OFFSET is a trim value used to improve accuracy of the result
     */
    return sprintf(buf, "%d\n", DIV_ROUND_CLOSEST(-4084 * (tjunc - toffset)
                            + 3076332, 10000));
}
​
static ssize_t show_label(struct device *dev,
static ssize_t label_show(struct device *dev,
              struct device_attribute *devattr, char *buf)
{
    return sprintf(buf, "%s\n",
               input_names[to_sensor_dev_attr(devattr)->index]);
}
​
static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, da9055_read_auto_ch, NULL,
              DA9055_ADC_VSYS);
static SENSOR_DEVICE_ATTR(in0_label, S_IRUGO, show_label, NULL,
              DA9055_ADC_VSYS);
static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, da9055_read_auto_ch, NULL,
              DA9055_ADC_ADCIN1);
static SENSOR_DEVICE_ATTR(in1_label, S_IRUGO, show_label, NULL,
              DA9055_ADC_ADCIN1);
static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, da9055_read_auto_ch, NULL,
              DA9055_ADC_ADCIN2);
static SENSOR_DEVICE_ATTR(in2_label, S_IRUGO, show_label, NULL,
              DA9055_ADC_ADCIN2);
static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, da9055_read_auto_ch, NULL,
              DA9055_ADC_ADCIN3);
static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL,
              DA9055_ADC_ADCIN3);
​
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, da9055_read_tjunc, NULL,
              DA9055_ADC_TJUNC);
static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, show_label, NULL,
              DA9055_ADC_TJUNC);
static SENSOR_DEVICE_ATTR_RO(in0_input, da9055_auto_ch, DA9055_ADC_VSYS);
static SENSOR_DEVICE_ATTR_RO(in0_label, label, DA9055_ADC_VSYS);
static SENSOR_DEVICE_ATTR_RO(in1_input, da9055_auto_ch, DA9055_ADC_ADCIN1);
static SENSOR_DEVICE_ATTR_RO(in1_label, label, DA9055_ADC_ADCIN1);
static SENSOR_DEVICE_ATTR_RO(in2_input, da9055_auto_ch, DA9055_ADC_ADCIN2);
static SENSOR_DEVICE_ATTR_RO(in2_label, label, DA9055_ADC_ADCIN2);
static SENSOR_DEVICE_ATTR_RO(in3_input, da9055_auto_ch, DA9055_ADC_ADCIN3);
static SENSOR_DEVICE_ATTR_RO(in3_label, label, DA9055_ADC_ADCIN3);
​
static SENSOR_DEVICE_ATTR_RO(temp1_input, da9055_tjunc, DA9055_ADC_TJUNC);
static SENSOR_DEVICE_ATTR_RO(temp1_label, label, DA9055_ADC_TJUNC);
​
static struct attribute *da9055_attrs[] = {
    &sensor_dev_attr_in0_input.dev_attr.attr,
    &sensor_dev_attr_in0_label.dev_attr.attr,
    &sensor_dev_attr_in1_input.dev_attr.attr,
    &sensor_dev_attr_in1_label.dev_attr.attr,
    &sensor_dev_attr_in2_input.dev_attr.attr,
    &sensor_dev_attr_in2_label.dev_attr.attr,
    &sensor_dev_attr_in3_input.dev_attr.attr,
    &sensor_dev_attr_in3_label.dev_attr.attr,