static ssize_t attr_torch_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
struct lm3561_drv_data *data = dev_get_drvdata(dev);
unsigned long enable;
int result;
result = strict_strtoul(buf, 10, &enable);
if (result) {
dev_err(&data->client->dev,
"%s(): strtoul failed, result=%d\n",
__func__, result);
return -EINVAL;
}
if (1 < enable) {
dev_err(&data->client->dev,
"%s(): 1 < enable, enable=%lu\n",
__func__, enable);
return -EINVAL;
}
result = lm3561_torch_mode(data, (unsigned)enable);
if (result)
return result;
return size;
}
static ssize_t attr_torch_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
struct lm3561_drv_data *data = dev_get_drvdata(dev);
unsigned long enable;
int result;
result = strict_strtoul(buf, 10, &enable);
if (result) {
dev_err(&data->client->dev,
"%s(): strtoul failed, result=%d\n",
__func__, result);
return -EINVAL;
}
if (1 < enable) {
dev_err(&data->client->dev,
"%s(): 1 < enable, enable=%lu\n",
__func__, enable);
return -EINVAL;
}
if (enable && data->on_duty == DUTY_ON_TORCH) {
dev_dbg(&data->client->dev, "%s: already enabled\n", __func__);
return size;
}
result = pm_enable_lock(data);
if (result)
goto err;
result = lm3561_torch_mode(data, (unsigned)enable);
data->on_duty = !result && enable ? DUTY_ON_TORCH : DUTY_ON_NOTHING;
if (!data->on_duty) {
pm_runtime_mark_last_busy(&data->client->dev);
pm_runtime_put_autosuspend(&data->client->dev);
}
err:
mutex_unlock(&data->lock);
return result ? result : size;
}