drivers/devfreq/devfreq.c

1407 	struct devfreq *df = to_devfreq(dev);
1408 	return sprintf(buf, "%s\n", dev_name(df->dev.parent));
1415 	struct devfreq *df = to_devfreq(dev);
1417 	if (!df->governor)
1420 	return sprintf(buf, "%s\n", df->governor->name);
1426 	struct devfreq *df = to_devfreq(dev);
1431 	if (!df->governor)
1444 	if (df->governor == governor) {
1447 	} else if (IS_SUPPORTED_FLAG(df->governor->flags, IMMUTABLE)
1457 	ret = df->governor->event_handler(df, DEVFREQ_GOV_STOP, NULL);
1460 			 __func__, df->governor->name, ret);
1463 	remove_sysfs_files(df, df->governor);
1469 	prev_governor = df->governor;
1470 	df->governor = governor;
1471 	ret = df->governor->event_handler(df, DEVFREQ_GOV_START, NULL);
1474 			 __func__, df->governor->name, ret);
1477 		df->governor = prev_governor;
1478 		ret = df->governor->event_handler(df, DEVFREQ_GOV_START, NULL);
1483 			df->governor = NULL;
1492 	create_sysfs_files(df, df->governor);
1507 	struct devfreq *df = to_devfreq(d);
1510 	if (!df->governor)
1519 	if (IS_SUPPORTED_FLAG(df->governor->flags, IMMUTABLE)) {
1521 				  "%s ", df->governor->name);
1553 	struct devfreq *df = to_devfreq(dev);
1555 	if (!df->profile)
1558 	if (df->profile->get_cur_freq &&
1559 		!df->profile->get_cur_freq(df->dev.parent, &freq))
1562 	return sprintf(buf, "%lu\n", df->previous_freq);
1569 	struct devfreq *df = to_devfreq(dev);
1571 	return sprintf(buf, "%lu\n", df->previous_freq);
1578 	struct devfreq *df = to_devfreq(dev);
1586 	if (!dev_pm_qos_request_active(&df->user_min_freq_req))
1594 	ret = dev_pm_qos_update_request(&df->user_min_freq_req,
1605 	struct devfreq *df = to_devfreq(dev);
1608 	mutex_lock(&df->lock);
1609 	devfreq_get_freq_range(df, &min_freq, &max_freq);
1610 	mutex_unlock(&df->lock);
1619 	struct devfreq *df = to_devfreq(dev);
1627 	if (!dev_pm_qos_request_active(&df->user_max_freq_req))
1649 	ret = dev_pm_qos_update_request(&df->user_max_freq_req, value);
1659 	struct devfreq *df = to_devfreq(dev);
1662 	mutex_lock(&df->lock);
1663 	devfreq_get_freq_range(df, &min_freq, &max_freq);
1664 	mutex_unlock(&df->lock);
1674 	struct devfreq *df = to_devfreq(d);
1678 	if (!df->profile)
1681 	mutex_lock(&df->lock);
1683 	for (i = 0; i < df->max_state; i++)
1685 				"%lu ", df->freq_table[i]);
1687 	mutex_unlock(&df->lock);
1701 	struct devfreq *df = to_devfreq(dev);
1706 	if (!df->profile)
1708 	max_state = df->max_state;
1713 	mutex_lock(&df->lock);
1714 	if (!df->stop_polling &&
1715 			devfreq_update_status(df, df->previous_freq)) {
1716 		mutex_unlock(&df->lock);
1719 	mutex_unlock(&df->lock);
1727 				     df->freq_table[i]);
1737 		if (df->freq_table[i] == df->previous_freq)
1743 		len += sysfs_emit_at(buf, len, "%10lu:", df->freq_table[i]);
1748 				df->stats.trans_table[(i * max_state) + j]);
1753 				     jiffies64_to_msecs(df->stats.time_in_state[i]));
1758 				     df->stats.total_trans);
1771 	struct devfreq *df = to_devfreq(dev);
1774 	if (!df->profile)
1777 	if (df->max_state == 0)
1784 	mutex_lock(&df->lock);
1785 	memset(df->stats.time_in_state, 0, (df->max_state *
1786 					sizeof(*df->stats.time_in_state)));
1787 	memset(df->stats.trans_table, 0, array3_size(sizeof(unsigned int),
1788 					df->max_state,
1789 					df->max_state));
1790 	df->stats.total_trans = 0;
1791 	df->stats.last_update = get_jiffies_64();
1792 	mutex_unlock(&df->lock);
1815 	struct devfreq *df = to_devfreq(dev);
1817 	if (!df->profile)
1820 	return sprintf(buf, "%d\n", df->profile->polling_ms);
1827 	struct devfreq *df = to_devfreq(dev);
1831 	if (!df->governor)
1838 	df->governor->event_handler(df, DEVFREQ_GOV_UPDATE_INTERVAL, &value);
1848 	struct devfreq *df = to_devfreq(dev);
1850 	if (!df->profile)
1853 	return sprintf(buf, "%s\n", timer_name[df->profile->timer]);
1859 	struct devfreq *df = to_devfreq(dev);
1864 	if (!df->governor || !df->profile)
1883 	if (df->profile->timer == timer) {
1888 	mutex_lock(&df->lock);
1889 	df->profile->timer = timer;
1890 	mutex_unlock(&df->lock);
1892 	ret = df->governor->event_handler(df, DEVFREQ_GOV_STOP, NULL);
1895 			 __func__, df->governor->name, ret);
1899 	ret = df->governor->event_handler(df, DEVFREQ_GOV_START, NULL);
1902 			 __func__, df->governor->name, ret);
1908 #define CREATE_SYSFS_FILE(df, name)					\
1911 	ret = sysfs_create_file(&df->dev.kobj, &dev_attr_##name.attr);	\
1913 		dev_warn(&df->dev,					\