static ssize_t low_ua_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int val = 0;
int ret = 0;
ret = convert_to_int(buf, &val);
if (ret)
return ret;
gbcl->btm_low_threshold_uv = current_to_voltage(gbcl, val);
return count;
}
static ssize_t low_ua_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int val = 0;
int ret = 0;
ret = convert_to_int(buf, &val);
if (ret)
return ret;
if (gbcl->bcl_monitor_type == BCL_IBAT_MONITOR_TYPE)
gbcl->btm_low_threshold_uv = current_to_voltage(gbcl, val);
else
gbcl->ibat_low_thresh.trip_value = val;
return count;
}
static int probe_btm_properties(struct bcl_context *bcl)
{
int ret = 0, curr_ua = 0;
int adc_interval_us;
struct device_node *ibat_node = NULL, *dev_node = bcl->dev->of_node;
char *key = NULL;
key = "qcom,ibat-monitor";
ibat_node = of_find_node_by_name(dev_node, key);
if (!ibat_node) {
ret = -ENODEV;
goto btm_probe_exit;
}
key = "qcom,uv-to-ua-numerator";
ret = of_property_read_u32(ibat_node, key,
&bcl->btm_uv_to_ua_numerator);
if (ret < 0)
goto btm_probe_exit;
key = "qcom,uv-to-ua-denominator";
ret = of_property_read_u32(ibat_node, key,
&bcl->btm_uv_to_ua_denominator);
if (ret < 0)
goto btm_probe_exit;
key = "qcom,low-threshold-uamp";
ret = of_property_read_u32(ibat_node, key, &curr_ua);
if (ret < 0)
goto btm_probe_exit;
bcl->btm_low_threshold_uv = current_to_voltage(bcl, curr_ua);
key = "qcom,high-threshold-uamp";
ret = of_property_read_u32(ibat_node, key, &curr_ua);
if (ret < 0)
goto btm_probe_exit;
bcl->btm_high_threshold_uv = current_to_voltage(bcl, curr_ua);
key = "qcom,mitigation-freq-khz";
ret = of_property_read_u32(ibat_node, key, &bcl->btm_freq_max);
if (ret < 0)
goto btm_probe_exit;
key = "qcom,ibat-channel";
ret = of_property_read_u32(ibat_node, key, &bcl->btm_ibat_chan);
if (ret < 0)
goto btm_probe_exit;
key = "qcom,adc-interval-usec";
ret = of_property_read_u32(ibat_node, key, &adc_interval_us);
if (ret < 0)
goto btm_probe_exit;
bcl->btm_adc_interval = uSec_to_adc_time(bcl, adc_interval_us);
key = "qcom,vph-channel";
ret = of_property_read_u32(ibat_node, key, &bcl->btm_vph_chan);
if (ret < 0)
goto btm_probe_exit;
key = "qcom,vph-high-threshold-uv";
ret = of_property_read_u32(ibat_node, key, &bcl->btm_vph_high_thresh);
if (ret < 0)
goto btm_probe_exit;
key = "qcom,vph-low-threshold-uv";
ret = of_property_read_u32(ibat_node, key, &bcl->btm_vph_low_thresh);
if (ret < 0)
goto btm_probe_exit;
key = "ibat-threshold";
bcl->btm_adc_tm_dev = qpnp_get_adc_tm(bcl->dev, key);
if (IS_ERR(bcl->btm_adc_tm_dev)) {
ret = PTR_ERR(bcl->btm_adc_tm_dev);
goto btm_probe_exit;
}
key = "ibat";
bcl->btm_vadc_dev = qpnp_get_vadc(bcl->dev, key);
if (IS_ERR(bcl->btm_vadc_dev)) {
ret = PTR_ERR(bcl->btm_vadc_dev);
goto btm_probe_exit;
}
get_vdd_rstr_freq(bcl, ibat_node);
bcl->btm_freq_max = max(bcl->btm_freq_max, bcl->thermal_freq_limit);
bcl->btm_mode = BCL_MONITOR_DISABLED;
bcl->bcl_monitor_type = BCL_IBAT_MONITOR_TYPE;
snprintf(bcl->bcl_type, BCL_NAME_LENGTH, "%s",
bcl_type[BCL_IBAT_MONITOR_TYPE]);
ret = cpufreq_register_notifier(&bcl_cpufreq_notifier,
CPUFREQ_POLICY_NOTIFIER);
if (ret)
pr_err("Error with cpufreq register. err:%d\n", ret);
btm_probe_exit:
if (ret && ret != -EPROBE_DEFER)
dev_info(bcl->dev, "%s:%s Error reading key:%s. ret = %d\n",
KBUILD_MODNAME, __func__, key, ret);
return ret;
}
