Source of da9052-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
 
                 DA9052_ADCCONT_AUTOVDDEN,
                 DA9052_ADCCONT_AUTOVDDEN);
}
​
static inline int da9052_disable_vddout_channel(struct da9052 *da9052)
{
    return da9052_reg_update(da9052, DA9052_ADC_CONT_REG,
                 DA9052_ADCCONT_AUTOVDDEN, 0);
}
​
static ssize_t da9052_read_vddout(struct device *dev,
static ssize_t da9052_vddout_show(struct device *dev,
                  struct device_attribute *devattr, char *buf)
{
    struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
    int ret, vdd;
​
    mutex_lock(&hwmon->hwmon_lock);
​
    ret = da9052_enable_vddout_channel(hwmon->da9052);
    if (ret < 0)
        goto hwmon_err;
Show more
    mutex_unlock(&hwmon->hwmon_lock);
    return sprintf(buf, "%d\n", volt_reg_to_mv(vdd));
​
hwmon_err_release:
    da9052_disable_vddout_channel(hwmon->da9052);
hwmon_err:
    mutex_unlock(&hwmon->hwmon_lock);
    return ret;
}
​
static ssize_t da9052_read_ich(struct device *dev,
static ssize_t da9052_ich_show(struct device *dev,
                   struct device_attribute *devattr, char *buf)
{
    struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
    int ret;
​
    ret = da9052_reg_read(hwmon->da9052, DA9052_ICHG_AV_REG);
    if (ret < 0)
        return ret;
​
    /* Equivalent to 3.9mA/bit in register ICHG_AV */
    return sprintf(buf, "%d\n", DIV_ROUND_CLOSEST(ret * 39, 10));
}
​
static ssize_t da9052_read_tbat(struct device *dev,
static ssize_t da9052_tbat_show(struct device *dev,
                struct device_attribute *devattr, char *buf)
{
    struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
​
    return sprintf(buf, "%d\n", da9052_adc_read_temp(hwmon->da9052));
}
​
static ssize_t da9052_read_vbat(struct device *dev,
static ssize_t da9052_vbat_show(struct device *dev,
                struct device_attribute *devattr, char *buf)
{
    struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
    int ret;
​
    ret = da9052_adc_manual_read(hwmon->da9052, DA9052_ADC_VBAT);
    if (ret < 0)
        return ret;
​
    return sprintf(buf, "%d\n", volt_reg_to_mv(ret));
}
​
static ssize_t da9052_read_misc_channel(struct device *dev,
static ssize_t da9052_misc_channel_show(struct device *dev,
                    struct device_attribute *devattr,
                    char *buf)
{
    struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
    int channel = to_sensor_dev_attr(devattr)->index;
    int ret;
​
    ret = da9052_adc_manual_read(hwmon->da9052, channel);
    if (ret < 0)
        return ret;
Show more
        return ret;
​
    /* Wait for an conversion done interrupt */
    if (!wait_for_completion_timeout(&hwmon->tsidone,
                     msecs_to_jiffies(500)))
        return -ETIMEDOUT;
​
    return da9052_get_tsi_result(hwmon, channel);
}
​
static ssize_t da9052_read_tsi(struct device *dev,
                   struct device_attribute *devattr,
                   char *buf)
static ssize_t da9052_tsi_show(struct device *dev,
                   struct device_attribute *devattr, char *buf)
{
    struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
    int channel = to_sensor_dev_attr(devattr)->index;
    int ret;
​
    mutex_lock(&hwmon->hwmon_lock);
    ret = __da9052_read_tsi(dev, channel);
    mutex_unlock(&hwmon->hwmon_lock);
​
    if (ret < 0)
        return ret;
    else
        return sprintf(buf, "%d\n", input_tsireg_to_mv(hwmon, ret));
}
​
static ssize_t da9052_read_tjunc(struct device *dev,
static ssize_t da9052_tjunc_show(struct device *dev,
                 struct device_attribute *devattr, char *buf)
{
    struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
    int tjunc;
    int toffset;
​
    tjunc = da9052_reg_read(hwmon->da9052, DA9052_TJUNC_RES_REG);
    if (tjunc < 0)
        return tjunc;
​
Show more
    if (toffset < 0)
        return toffset;
​
    /*
     * Degrees celsius = 1.708 * (TJUNC_RES - T_OFFSET) - 108.8
     * T_OFFSET is a trim value used to improve accuracy of the result
     */
    return sprintf(buf, "%d\n", 1708 * (tjunc - toffset) - 108800);
}
​
static ssize_t da9052_read_vbbat(struct device *dev,
static ssize_t da9052_vbbat_show(struct device *dev,
                 struct device_attribute *devattr, char *buf)
{
    struct da9052_hwmon *hwmon = dev_get_drvdata(dev);
    int ret;
​
    ret = da9052_adc_manual_read(hwmon->da9052, DA9052_ADC_VBBAT);
    if (ret < 0)
        return ret;
​
    return sprintf(buf, "%d\n", vbbat_reg_to_mv(ret));
}
​
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 umode_t da9052_channel_is_visible(struct kobject *kobj,
                     struct attribute *attr, int index)
{
    struct device *dev = container_of(kobj, struct device, kobj);
Show more
        case DA9052_ADC_TSI_YP:
        case DA9052_ADC_TSI_XN:
        case DA9052_ADC_TSI_YN:
            return 0;
        }
    }
​
    return attr->mode;
}
​
static SENSOR_DEVICE_ATTR(in0_input, 0444, da9052_read_vddout, NULL,
              DA9052_ADC_VDDOUT);
static SENSOR_DEVICE_ATTR(in0_label, 0444, show_label, NULL,
              DA9052_ADC_VDDOUT);
static SENSOR_DEVICE_ATTR(in3_input, 0444, da9052_read_vbat, NULL,
              DA9052_ADC_VBAT);
static SENSOR_DEVICE_ATTR(in3_label, 0444, show_label, NULL,
              DA9052_ADC_VBAT);
static SENSOR_DEVICE_ATTR(in4_input, 0444, da9052_read_misc_channel, NULL,
              DA9052_ADC_IN4);
static SENSOR_DEVICE_ATTR(in4_label, 0444, show_label, NULL,
              DA9052_ADC_IN4);
static SENSOR_DEVICE_ATTR(in5_input, 0444, da9052_read_misc_channel, NULL,
              DA9052_ADC_IN5);
static SENSOR_DEVICE_ATTR(in5_label, 0444, show_label, NULL,
              DA9052_ADC_IN5);
static SENSOR_DEVICE_ATTR(in6_input, 0444, da9052_read_misc_channel, NULL,
              DA9052_ADC_IN6);
static SENSOR_DEVICE_ATTR(in6_label, 0444, show_label, NULL,
              DA9052_ADC_IN6);
static SENSOR_DEVICE_ATTR(in9_input, 0444, da9052_read_vbbat, NULL,
              DA9052_ADC_VBBAT);
static SENSOR_DEVICE_ATTR(in9_label, 0444, show_label, NULL,
              DA9052_ADC_VBBAT);
​
static SENSOR_DEVICE_ATTR(in70_input, 0444, da9052_read_tsi, NULL,
              DA9052_ADC_TSI_XP);
static SENSOR_DEVICE_ATTR(in70_label, 0444, show_label, NULL,
              DA9052_ADC_TSI_XP);
static SENSOR_DEVICE_ATTR(in71_input, 0444, da9052_read_tsi, NULL,
              DA9052_ADC_TSI_XN);
static SENSOR_DEVICE_ATTR(in71_label, 0444, show_label, NULL,
              DA9052_ADC_TSI_XN);
static SENSOR_DEVICE_ATTR(in72_input, 0444, da9052_read_tsi, NULL,
              DA9052_ADC_TSI_YP);
static SENSOR_DEVICE_ATTR(in72_label, 0444, show_label, NULL,
              DA9052_ADC_TSI_YP);
static SENSOR_DEVICE_ATTR(in73_input, 0444, da9052_read_tsi, NULL,
              DA9052_ADC_TSI_YN);
static SENSOR_DEVICE_ATTR(in73_label, 0444, show_label, NULL,
              DA9052_ADC_TSI_YN);
​
static SENSOR_DEVICE_ATTR(curr1_input, 0444, da9052_read_ich, NULL,
              DA9052_ADC_ICH);
static SENSOR_DEVICE_ATTR(curr1_label, 0444, show_label, NULL,
              DA9052_ADC_ICH);
​
static SENSOR_DEVICE_ATTR(temp2_input, 0444, da9052_read_tbat, NULL,
              DA9052_ADC_TBAT);
static SENSOR_DEVICE_ATTR(temp2_label, 0444, show_label, NULL,
              DA9052_ADC_TBAT);
static SENSOR_DEVICE_ATTR(temp8_input, 0444, da9052_read_tjunc, NULL,
              DA9052_ADC_TJUNC);
static SENSOR_DEVICE_ATTR(temp8_label, 0444, show_label, NULL,
              DA9052_ADC_TJUNC);
static SENSOR_DEVICE_ATTR_RO(in0_input, da9052_vddout, DA9052_ADC_VDDOUT);
static SENSOR_DEVICE_ATTR_RO(in0_label, label, DA9052_ADC_VDDOUT);
static SENSOR_DEVICE_ATTR_RO(in3_input, da9052_vbat, DA9052_ADC_VBAT);
static SENSOR_DEVICE_ATTR_RO(in3_label, label, DA9052_ADC_VBAT);
static SENSOR_DEVICE_ATTR_RO(in4_input, da9052_misc_channel, DA9052_ADC_IN4);
static SENSOR_DEVICE_ATTR_RO(in4_label, label, DA9052_ADC_IN4);
static SENSOR_DEVICE_ATTR_RO(in5_input, da9052_misc_channel, DA9052_ADC_IN5);
static SENSOR_DEVICE_ATTR_RO(in5_label, label, DA9052_ADC_IN5);
static SENSOR_DEVICE_ATTR_RO(in6_input, da9052_misc_channel, DA9052_ADC_IN6);
static SENSOR_DEVICE_ATTR_RO(in6_label, label, DA9052_ADC_IN6);
static SENSOR_DEVICE_ATTR_RO(in9_input, da9052_vbbat, DA9052_ADC_VBBAT);
static SENSOR_DEVICE_ATTR_RO(in9_label, label, DA9052_ADC_VBBAT);
​
static SENSOR_DEVICE_ATTR_RO(in70_input, da9052_tsi, DA9052_ADC_TSI_XP);
static SENSOR_DEVICE_ATTR_RO(in70_label, label, DA9052_ADC_TSI_XP);
static SENSOR_DEVICE_ATTR_RO(in71_input, da9052_tsi, DA9052_ADC_TSI_XN);
static SENSOR_DEVICE_ATTR_RO(in71_label, label, DA9052_ADC_TSI_XN);
static SENSOR_DEVICE_ATTR_RO(in72_input, da9052_tsi, DA9052_ADC_TSI_YP);
static SENSOR_DEVICE_ATTR_RO(in72_label, label, DA9052_ADC_TSI_YP);
static SENSOR_DEVICE_ATTR_RO(in73_input, da9052_tsi, DA9052_ADC_TSI_YN);
static SENSOR_DEVICE_ATTR_RO(in73_label, label, DA9052_ADC_TSI_YN);
​
static SENSOR_DEVICE_ATTR_RO(curr1_input, da9052_ich, DA9052_ADC_ICH);
static SENSOR_DEVICE_ATTR_RO(curr1_label, label, DA9052_ADC_ICH);
​
static SENSOR_DEVICE_ATTR_RO(temp2_input, da9052_tbat, DA9052_ADC_TBAT);
static SENSOR_DEVICE_ATTR_RO(temp2_label, label, DA9052_ADC_TBAT);
static SENSOR_DEVICE_ATTR_RO(temp8_input, da9052_tjunc, DA9052_ADC_TJUNC);
static SENSOR_DEVICE_ATTR_RO(temp8_label, label, DA9052_ADC_TJUNC);
​
static struct attribute *da9052_attrs[] = {
    &sensor_dev_attr_in0_input.dev_attr.attr,
    &sensor_dev_attr_in0_label.dev_attr.attr,
    &sensor_dev_attr_in3_input.dev_attr.attr,
    &sensor_dev_attr_in3_label.dev_attr.attr,
    &sensor_dev_attr_in4_input.dev_attr.attr,
    &sensor_dev_attr_in4_label.dev_attr.attr,
    &sensor_dev_attr_in5_input.dev_attr.attr,
    &sensor_dev_attr_in5_label.dev_attr.attr,