[linux-2.6-block.git] / drivers / cpufreq / freq_table.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * linux/drivers/cpufreq/freq_table.c
 *
 * Copyright (C) 2002 - 2003 Dominik Brodowski
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/cpufreq.h>
#include <linux/module.h>

/*********************************************************************
 *                     FREQUENCY TABLE HELPERS                       *
 *********************************************************************/

bool policy_has_boost_freq(struct cpufreq_policy *policy)
{
	struct cpufreq_frequency_table *pos, *table = policy->freq_table;

	if (!table)
		return false;

	cpufreq_for_each_valid_entry(pos, table)
		if (pos->flags & CPUFREQ_BOOST_FREQ)
			return true;

	return false;
}
EXPORT_SYMBOL_GPL(policy_has_boost_freq);

int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
				    struct cpufreq_frequency_table *table)
{
	struct cpufreq_frequency_table *pos;
	unsigned int min_freq = ~0;
	unsigned int max_freq = 0;
	unsigned int freq;

	cpufreq_for_each_valid_entry(pos, table) {
		freq = pos->frequency;

		if (!cpufreq_boost_enabled()
		    && (pos->flags & CPUFREQ_BOOST_FREQ))
			continue;

		pr_debug("table entry %u: %u kHz\n", (int)(pos - table), freq);
		if (freq < min_freq)
			min_freq = freq;
		if (freq > max_freq)
			max_freq = freq;
	}

	policy->min = policy->cpuinfo.min_freq = min_freq;
	policy->max = policy->cpuinfo.max_freq = max_freq;

	if (policy->min == ~0)
		return -EINVAL;
	else
		return 0;
}

int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
				   struct cpufreq_frequency_table *table)
{
	struct cpufreq_frequency_table *pos;
	unsigned int freq, next_larger = ~0;
	bool found = false;

	pr_debug("request for verification of policy (%u - %u kHz) for cpu %u\n",
					policy->min, policy->max, policy->cpu);

	cpufreq_verify_within_cpu_limits(policy);

	cpufreq_for_each_valid_entry(pos, table) {
		freq = pos->frequency;

		if ((freq >= policy->min) && (freq <= policy->max)) {
			found = true;
			break;
		}

		if ((next_larger > freq) && (freq > policy->max))
			next_larger = freq;
	}

	if (!found) {
		policy->max = next_larger;
		cpufreq_verify_within_cpu_limits(policy);
	}

	pr_debug("verification lead to (%u - %u kHz) for cpu %u\n",
				policy->min, policy->max, policy->cpu);

	return 0;
}
EXPORT_SYMBOL_GPL(cpufreq_frequency_table_verify);

/*
 * Generic routine to verify policy & frequency table, requires driver to set
 * policy->freq_table prior to it.
 */
int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy)
{
	if (!policy->freq_table)
		return -ENODEV;

	return cpufreq_frequency_table_verify(policy, policy->freq_table);
}
EXPORT_SYMBOL_GPL(cpufreq_generic_frequency_table_verify);

int cpufreq_table_index_unsorted(struct cpufreq_policy *policy,
				 unsigned int target_freq,
				 unsigned int relation)
{
	struct cpufreq_frequency_table optimal = {
		.driver_data = ~0,
		.frequency = 0,
	};
	struct cpufreq_frequency_table suboptimal = {
		.driver_data = ~0,
		.frequency = 0,
	};
	struct cpufreq_frequency_table *pos;
	struct cpufreq_frequency_table *table = policy->freq_table;
	unsigned int freq, diff, i = 0;
	int index;

	pr_debug("request for target %u kHz (relation: %u) for cpu %u\n",
					target_freq, relation, policy->cpu);

	switch (relation) {
	case CPUFREQ_RELATION_H:
		suboptimal.frequency = ~0;
		break;
	case CPUFREQ_RELATION_L:
	case CPUFREQ_RELATION_C:
		optimal.frequency = ~0;
		break;
	}

	cpufreq_for_each_valid_entry_idx(pos, table, i) {
		freq = pos->frequency;

		if ((freq < policy->min) || (freq > policy->max))
			continue;
		if (freq == target_freq) {
			optimal.driver_data = i;
			break;
		}
		switch (relation) {
		case CPUFREQ_RELATION_H:
			if (freq < target_freq) {
				if (freq >= optimal.frequency) {
					optimal.frequency = freq;
					optimal.driver_data = i;
				}
			} else {
				if (freq <= suboptimal.frequency) {
					suboptimal.frequency = freq;
					suboptimal.driver_data = i;
				}
			}
			break;
		case CPUFREQ_RELATION_L:
			if (freq > target_freq) {
				if (freq <= optimal.frequency) {
					optimal.frequency = freq;
					optimal.driver_data = i;
				}
			} else {
				if (freq >= suboptimal.frequency) {
					suboptimal.frequency = freq;
					suboptimal.driver_data = i;
				}
			}
			break;
		case CPUFREQ_RELATION_C:
			diff = abs(freq - target_freq);
			if (diff < optimal.frequency ||
			    (diff == optimal.frequency &&
			     freq > table[optimal.driver_data].frequency)) {
				optimal.frequency = diff;
				optimal.driver_data = i;
			}
			break;
		}
	}
	if (optimal.driver_data > i) {
		if (suboptimal.driver_data > i) {
			WARN(1, "Invalid frequency table: %d\n", policy->cpu);
			return 0;
		}

		index = suboptimal.driver_data;
	} else
		index = optimal.driver_data;

	pr_debug("target index is %u, freq is:%u kHz\n", index,
		 table[index].frequency);
	return index;
}
EXPORT_SYMBOL_GPL(cpufreq_table_index_unsorted);

int cpufreq_frequency_table_get_index(struct cpufreq_policy *policy,
		unsigned int freq)
{
	struct cpufreq_frequency_table *pos, *table = policy->freq_table;
	int idx;

	if (unlikely(!table)) {
		pr_debug("%s: Unable to find frequency table\n", __func__);
		return -ENOENT;
	}

	cpufreq_for_each_valid_entry_idx(pos, table, idx)
		if (pos->frequency == freq)
			return idx;

	return -EINVAL;
}
EXPORT_SYMBOL_GPL(cpufreq_frequency_table_get_index);

/**
 * show_available_freqs - show available frequencies for the specified CPU
 */
static ssize_t show_available_freqs(struct cpufreq_policy *policy, char *buf,
				    bool show_boost)
{
	ssize_t count = 0;
	struct cpufreq_frequency_table *pos, *table = policy->freq_table;

	if (!table)
		return -ENODEV;

	cpufreq_for_each_valid_entry(pos, table) {
		/*
		 * show_boost = true and driver_data = BOOST freq
		 * display BOOST freqs
		 *
		 * show_boost = false and driver_data = BOOST freq
		 * show_boost = true and driver_data != BOOST freq
		 * continue - do not display anything
		 *
		 * show_boost = false and driver_data != BOOST freq
		 * display NON BOOST freqs
		 */
		if (show_boost ^ (pos->flags & CPUFREQ_BOOST_FREQ))
			continue;

		count += sprintf(&buf[count], "%d ", pos->frequency);
	}
	count += sprintf(&buf[count], "\n");

	return count;

}

#define cpufreq_attr_available_freq(_name)	  \
struct freq_attr cpufreq_freq_attr_##_name##_freqs =     \
__ATTR_RO(_name##_frequencies)

/**
 * show_scaling_available_frequencies - show available normal frequencies for
 * the specified CPU
 */
static ssize_t scaling_available_frequencies_show(struct cpufreq_policy *policy,
						  char *buf)
{
	return show_available_freqs(policy, buf, false);
}
cpufreq_attr_available_freq(scaling_available);
EXPORT_SYMBOL_GPL(cpufreq_freq_attr_scaling_available_freqs);

/**
 * show_available_boost_freqs - show available boost frequencies for
 * the specified CPU
 */
static ssize_t scaling_boost_frequencies_show(struct cpufreq_policy *policy,
					      char *buf)
{
	return show_available_freqs(policy, buf, true);
}
cpufreq_attr_available_freq(scaling_boost);
EXPORT_SYMBOL_GPL(cpufreq_freq_attr_scaling_boost_freqs);

struct freq_attr *cpufreq_generic_attr[] = {
	&cpufreq_freq_attr_scaling_available_freqs,
	NULL,
};
EXPORT_SYMBOL_GPL(cpufreq_generic_attr);

static int set_freq_table_sorted(struct cpufreq_policy *policy)
{
	struct cpufreq_frequency_table *pos, *table = policy->freq_table;
	struct cpufreq_frequency_table *prev = NULL;
	int ascending = 0;

	policy->freq_table_sorted = CPUFREQ_TABLE_UNSORTED;

	cpufreq_for_each_valid_entry(pos, table) {
		if (!prev) {
			prev = pos;
			continue;
		}

		if (pos->frequency == prev->frequency) {
			pr_warn("Duplicate freq-table entries: %u\n",
				pos->frequency);
			return -EINVAL;
		}

		/* Frequency increased from prev to pos */
		if (pos->frequency > prev->frequency) {
			/* But frequency was decreasing earlier */
			if (ascending < 0) {
				pr_debug("Freq table is unsorted\n");
				return 0;
			}

			ascending++;
		} else {
			/* Frequency decreased from prev to pos */

			/* But frequency was increasing earlier */
			if (ascending > 0) {
				pr_debug("Freq table is unsorted\n");
				return 0;
			}

			ascending--;
		}

		prev = pos;
	}

	if (ascending > 0)
		policy->freq_table_sorted = CPUFREQ_TABLE_SORTED_ASCENDING;
	else
		policy->freq_table_sorted = CPUFREQ_TABLE_SORTED_DESCENDING;

	pr_debug("Freq table is sorted in %s order\n",
		 ascending > 0 ? "ascending" : "descending");

	return 0;
}

int cpufreq_table_validate_and_sort(struct cpufreq_policy *policy)
{
	int ret;

	if (!policy->freq_table)
		return 0;

	ret = cpufreq_frequency_table_cpuinfo(policy, policy->freq_table);
	if (ret)
		return ret;

	return set_freq_table_sorted(policy);
}

MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
MODULE_DESCRIPTION("CPUfreq frequency table helpers");
MODULE_LICENSE("GPL");
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
1da177e4 LT	2	/*
	3	* linux/drivers/cpufreq/freq_table.c
	4	*
	5	* Copyright (C) 2002 - 2003 Dominik Brodowski
	6	*/
	7
db701151 VK	8	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
db701151 VK	9
1da177e4	10	#include <linux/cpufreq.h>
5ff0a268	11	#include <linux/module.h>
1da177e4	12
1da177e4 LT	13	/*********************************************************************
	14	* FREQUENCY TABLE HELPERS *
	15	*********************************************************************/
	16
44139ed4 VK	17	bool policy_has_boost_freq(struct cpufreq_policy *policy)
	18	{
	19	struct cpufreq_frequency_table pos, table = policy->freq_table;
	20
	21	if (!table)
	22	return false;
	23
	24	cpufreq_for_each_valid_entry(pos, table)
	25	if (pos->flags & CPUFREQ_BOOST_FREQ)
	26	return true;
	27
	28	return false;
	29	}
	30	EXPORT_SYMBOL_GPL(policy_has_boost_freq);
	31
1da177e4 LT	32	int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
	33	struct cpufreq_frequency_table *table)
	34	{
041526f9	35	struct cpufreq_frequency_table *pos;
1da177e4 LT	36	unsigned int min_freq = ~0;
1da177e4 LT	37	unsigned int max_freq = 0;
041526f9	38	unsigned int freq;
1da177e4	39
041526f9 SK	40	cpufreq_for_each_valid_entry(pos, table) {
041526f9 SK	41	freq = pos->frequency;
1da177e4	42
6f19efc0	43	if (!cpufreq_boost_enabled()
041526f9	44	&& (pos->flags & CPUFREQ_BOOST_FREQ))
6f19efc0 LM	45	continue;
6f19efc0 LM	46
041526f9	47	pr_debug("table entry %u: %u kHz\n", (int)(pos - table), freq);
1da177e4 LT	48	if (freq < min_freq)
	49	min_freq = freq;
	50	if (freq > max_freq)
	51	max_freq = freq;
	52	}
	53
	54	policy->min = policy->cpuinfo.min_freq = min_freq;
	55	policy->max = policy->cpuinfo.max_freq = max_freq;
	56
	57	if (policy->min == ~0)
	58	return -EINVAL;
	59	else
	60	return 0;
	61	}
1da177e4 LT	62
	63	int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
	64	struct cpufreq_frequency_table *table)
	65	{
041526f9 SK	66	struct cpufreq_frequency_table *pos;
041526f9 SK	67	unsigned int freq, next_larger = ~0;
77db50c4	68	bool found = false;
1da177e4	69
2d06d8c4	70	pr_debug("request for verification of policy (%u - %u kHz) for cpu %u\n",
e08f5f5b	71	policy->min, policy->max, policy->cpu);
1da177e4	72
be49e346	73	cpufreq_verify_within_cpu_limits(policy);
1da177e4	74
041526f9 SK	75	cpufreq_for_each_valid_entry(pos, table) {
	76	freq = pos->frequency;
	77
77db50c4 VK	78	if ((freq >= policy->min) && (freq <= policy->max)) {
	79	found = true;
	80	break;
	81	}
	82
	83	if ((next_larger > freq) && (freq > policy->max))
1da177e4 LT	84	next_larger = freq;
	85	}
	86
77db50c4	87	if (!found) {
1da177e4	88	policy->max = next_larger;
be49e346	89	cpufreq_verify_within_cpu_limits(policy);
77db50c4	90	}
1da177e4	91
2d06d8c4	92	pr_debug("verification lead to (%u - %u kHz) for cpu %u\n",
e08f5f5b	93	policy->min, policy->max, policy->cpu);
1da177e4 LT	94
	95	return 0;
	96	}
	97	EXPORT_SYMBOL_GPL(cpufreq_frequency_table_verify);
	98
18434512	99	/*
e0b3165b VK	100	* Generic routine to verify policy & frequency table, requires driver to set
e0b3165b VK	101	* policy->freq_table prior to it.
18434512 VK	102	*/
	103	int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy)
	104	{
f8bfc116	105	if (!policy->freq_table)
18434512 VK	106	return -ENODEV;
18434512 VK	107
f8bfc116	108	return cpufreq_frequency_table_verify(policy, policy->freq_table);
18434512 VK	109	}
18434512 VK	110	EXPORT_SYMBOL_GPL(cpufreq_generic_frequency_table_verify);
1da177e4	111
da0c6dc0 VK	112	int cpufreq_table_index_unsorted(struct cpufreq_policy *policy,
	113	unsigned int target_freq,
	114	unsigned int relation)
1da177e4	115	{
484944a5	116	struct cpufreq_frequency_table optimal = {
50701588	117	.driver_data = ~0,
484944a5 DJ	118	.frequency = 0,
	119	};
	120	struct cpufreq_frequency_table suboptimal = {
50701588	121	.driver_data = ~0,
484944a5 DJ	122	.frequency = 0,
484944a5 DJ	123	};
041526f9	124	struct cpufreq_frequency_table *pos;
7ab4aabb	125	struct cpufreq_frequency_table *table = policy->freq_table;
5b0c0b16	126	unsigned int freq, diff, i = 0;
d218ed77	127	int index;
1da177e4	128
2d06d8c4	129	pr_debug("request for target %u kHz (relation: %u) for cpu %u\n",
e08f5f5b	130	target_freq, relation, policy->cpu);
1da177e4 LT	131
	132	switch (relation) {
	133	case CPUFREQ_RELATION_H:
1da177e4 LT	134	suboptimal.frequency = ~0;
	135	break;
	136	case CPUFREQ_RELATION_L:
5b0c0b16	137	case CPUFREQ_RELATION_C:
1da177e4	138	optimal.frequency = ~0;
1da177e4 LT	139	break;
	140	}
	141
ffd81dcf	142	cpufreq_for_each_valid_entry_idx(pos, table, i) {
041526f9 SK	143	freq = pos->frequency;
041526f9 SK	144
1da177e4 LT	145	if ((freq < policy->min) \|\| (freq > policy->max))
1da177e4 LT	146	continue;
1e498856 SK	147	if (freq == target_freq) {
	148	optimal.driver_data = i;
	149	break;
	150	}
97acec55	151	switch (relation) {
1da177e4	152	case CPUFREQ_RELATION_H:
1e498856	153	if (freq < target_freq) {
1da177e4 LT	154	if (freq >= optimal.frequency) {
1da177e4 LT	155	optimal.frequency = freq;
50701588	156	optimal.driver_data = i;
1da177e4 LT	157	}
	158	} else {
	159	if (freq <= suboptimal.frequency) {
	160	suboptimal.frequency = freq;
50701588	161	suboptimal.driver_data = i;
1da177e4 LT	162	}
	163	}
	164	break;
	165	case CPUFREQ_RELATION_L:
1e498856	166	if (freq > target_freq) {
1da177e4 LT	167	if (freq <= optimal.frequency) {
1da177e4 LT	168	optimal.frequency = freq;
50701588	169	optimal.driver_data = i;
1da177e4 LT	170	}
	171	} else {
	172	if (freq >= suboptimal.frequency) {
	173	suboptimal.frequency = freq;
50701588	174	suboptimal.driver_data = i;
1da177e4 LT	175	}
	176	}
	177	break;
5b0c0b16 SK	178	case CPUFREQ_RELATION_C:
	179	diff = abs(freq - target_freq);
	180	if (diff < optimal.frequency \|\|
	181	(diff == optimal.frequency &&
	182	freq > table[optimal.driver_data].frequency)) {
	183	optimal.frequency = diff;
	184	optimal.driver_data = i;
	185	}
	186	break;
1da177e4 LT	187	}
1da177e4 LT	188	}
50701588	189	if (optimal.driver_data > i) {
d218ed77 VK	190	if (suboptimal.driver_data > i) {
	191	WARN(1, "Invalid frequency table: %d\n", policy->cpu);
	192	return 0;
	193	}
1da177e4	194
d218ed77 VK	195	index = suboptimal.driver_data;
	196	} else
	197	index = optimal.driver_data;
1da177e4	198
d218ed77 VK	199	pr_debug("target index is %u, freq is:%u kHz\n", index,
	200	table[index].frequency);
	201	return index;
1da177e4	202	}
da0c6dc0	203	EXPORT_SYMBOL_GPL(cpufreq_table_index_unsorted);
1da177e4	204
d3916691 VK	205	int cpufreq_frequency_table_get_index(struct cpufreq_policy *policy,
	206	unsigned int freq)
	207	{
f8bfc116	208	struct cpufreq_frequency_table pos, table = policy->freq_table;
ffd81dcf	209	int idx;
d3916691	210
d3916691 VK	211	if (unlikely(!table)) {
	212	pr_debug("%s: Unable to find frequency table\n", __func__);
	213	return -ENOENT;
	214	}
	215
ffd81dcf	216	cpufreq_for_each_valid_entry_idx(pos, table, idx)
041526f9	217	if (pos->frequency == freq)
ffd81dcf	218	return idx;
d3916691 VK	219
	220	return -EINVAL;
	221	}
	222	EXPORT_SYMBOL_GPL(cpufreq_frequency_table_get_index);
	223
1da177e4	224	/**
e32d22f7	225	* show_available_freqs - show available frequencies for the specified CPU
1da177e4	226	*/
6f19efc0 LM	227	static ssize_t show_available_freqs(struct cpufreq_policy policy, char buf,
6f19efc0 LM	228	bool show_boost)
1da177e4	229	{
1da177e4	230	ssize_t count = 0;
041526f9	231	struct cpufreq_frequency_table pos, table = policy->freq_table;
1da177e4	232
e0b3165b	233	if (!table)
1da177e4 LT	234	return -ENODEV;
1da177e4 LT	235
041526f9	236	cpufreq_for_each_valid_entry(pos, table) {
6f19efc0 LM	237	/*
	238	* show_boost = true and driver_data = BOOST freq
	239	* display BOOST freqs
	240	*
	241	* show_boost = false and driver_data = BOOST freq
	242	* show_boost = true and driver_data != BOOST freq
	243	* continue - do not display anything
	244	*
	245	* show_boost = false and driver_data != BOOST freq
	246	* display NON BOOST freqs
	247	*/
041526f9	248	if (show_boost ^ (pos->flags & CPUFREQ_BOOST_FREQ))
6f19efc0 LM	249	continue;
6f19efc0 LM	250
041526f9	251	count += sprintf(&buf[count], "%d ", pos->frequency);
1da177e4 LT	252	}
	253	count += sprintf(&buf[count], "\n");
	254
	255	return count;
	256
	257	}
	258
6f19efc0 LM	259	#define cpufreq_attr_available_freq(_name) \
	260	struct freq_attr cpufreq_freq_attr_##_name##_freqs = \
	261	__ATTR_RO(_name##_frequencies)
	262
	263	/**
	264	* show_scaling_available_frequencies - show available normal frequencies for
	265	* the specified CPU
	266	*/
	267	static ssize_t scaling_available_frequencies_show(struct cpufreq_policy *policy,
	268	char *buf)
	269	{
	270	return show_available_freqs(policy, buf, false);
	271	}
	272	cpufreq_attr_available_freq(scaling_available);
1da177e4 LT	273	EXPORT_SYMBOL_GPL(cpufreq_freq_attr_scaling_available_freqs);
1da177e4 LT	274
6f19efc0 LM	275	/**
	276	* show_available_boost_freqs - show available boost frequencies for
	277	* the specified CPU
	278	*/
	279	static ssize_t scaling_boost_frequencies_show(struct cpufreq_policy *policy,
	280	char *buf)
	281	{
	282	return show_available_freqs(policy, buf, true);
	283	}
	284	cpufreq_attr_available_freq(scaling_boost);
	285	EXPORT_SYMBOL_GPL(cpufreq_freq_attr_scaling_boost_freqs);
	286
18434512 VK	287	struct freq_attr *cpufreq_generic_attr[] = {
	288	&cpufreq_freq_attr_scaling_available_freqs,
	289	NULL,
	290	};
	291	EXPORT_SYMBOL_GPL(cpufreq_generic_attr);
	292
da0c6dc0 VK	293	static int set_freq_table_sorted(struct cpufreq_policy *policy)
	294	{
	295	struct cpufreq_frequency_table pos, table = policy->freq_table;
	296	struct cpufreq_frequency_table *prev = NULL;
	297	int ascending = 0;
	298
	299	policy->freq_table_sorted = CPUFREQ_TABLE_UNSORTED;
	300
	301	cpufreq_for_each_valid_entry(pos, table) {
	302	if (!prev) {
	303	prev = pos;
	304	continue;
	305	}
	306
	307	if (pos->frequency == prev->frequency) {
	308	pr_warn("Duplicate freq-table entries: %u\n",
	309	pos->frequency);
	310	return -EINVAL;
	311	}
	312
	313	/* Frequency increased from prev to pos */
	314	if (pos->frequency > prev->frequency) {
	315	/* But frequency was decreasing earlier */
	316	if (ascending < 0) {
	317	pr_debug("Freq table is unsorted\n");
	318	return 0;
	319	}
	320
	321	ascending++;
	322	} else {
	323	/* Frequency decreased from prev to pos */
	324
	325	/* But frequency was increasing earlier */
	326	if (ascending > 0) {
	327	pr_debug("Freq table is unsorted\n");
	328	return 0;
	329	}
	330
	331	ascending--;
	332	}
	333
	334	prev = pos;
	335	}
	336
	337	if (ascending > 0)
	338	policy->freq_table_sorted = CPUFREQ_TABLE_SORTED_ASCENDING;
	339	else
	340	policy->freq_table_sorted = CPUFREQ_TABLE_SORTED_DESCENDING;
	341
	342	pr_debug("Freq table is sorted in %s order\n",
	343	ascending > 0 ? "ascending" : "descending");
	344
	345	return 0;
	346	}
	347
d417e069 VK	348	int cpufreq_table_validate_and_sort(struct cpufreq_policy *policy)
	349	{
	350	int ret;
	351
	352	if (!policy->freq_table)
	353	return 0;
	354
	355	ret = cpufreq_frequency_table_cpuinfo(policy, policy->freq_table);
	356	if (ret)
	357	return ret;
	358
	359	return set_freq_table_sorted(policy);
	360	}
	361
97acec55 DJ	362	MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
	363	MODULE_DESCRIPTION("CPUfreq frequency table helpers");
	364	MODULE_LICENSE("GPL");