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-rw-r--r--Documentation/cpu-freq/cpu-drivers.txt7
-rw-r--r--drivers/cpufreq/amd_freq_sensitivity.c4
-rw-r--r--drivers/cpufreq/cpufreq.c9
-rw-r--r--drivers/cpufreq/cpufreq_ondemand.c14
-rw-r--r--drivers/cpufreq/freq_table.c24
-rw-r--r--drivers/cpufreq/powernv-cpufreq.c4
-rw-r--r--drivers/cpufreq/s3c24xx-cpufreq.c26
-rw-r--r--drivers/cpufreq/s5pv210-cpufreq.c7
-rw-r--r--include/linux/cpufreq.h3
9 files changed, 37 insertions, 61 deletions
diff --git a/Documentation/cpu-freq/cpu-drivers.txt b/Documentation/cpu-freq/cpu-drivers.txt
index 74e812f0719c..772b94fde264 100644
--- a/Documentation/cpu-freq/cpu-drivers.txt
+++ b/Documentation/cpu-freq/cpu-drivers.txt
@@ -245,12 +245,11 @@ policy->max, and all other criteria are met. This is helpful for the
int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
unsigned int target_freq,
- unsigned int relation,
- unsigned int *index);
+ unsigned int relation);
is the corresponding frequency table helper for the ->target
-stage. Just pass the values to this function, and the unsigned int
-index returns the number of the frequency table entry which contains
+stage. Just pass the values to this function, and this function
+returns the number of the frequency table entry which contains
the frequency the CPU shall be set to.
The following macros can be used as iterators over cpufreq_frequency_table:
diff --git a/drivers/cpufreq/amd_freq_sensitivity.c b/drivers/cpufreq/amd_freq_sensitivity.c
index 3bea1bb791a9..6d5dc04c3a37 100644
--- a/drivers/cpufreq/amd_freq_sensitivity.c
+++ b/drivers/cpufreq/amd_freq_sensitivity.c
@@ -91,8 +91,8 @@ static unsigned int amd_powersave_bias_target(struct cpufreq_policy *policy,
else {
unsigned int index;
- cpufreq_frequency_table_target(policy,
- policy->cur - 1, CPUFREQ_RELATION_H, &index);
+ index = cpufreq_frequency_table_target(policy,
+ policy->cur - 1, CPUFREQ_RELATION_H);
freq_next = policy->freq_table[index].frequency;
}
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 1685e930770f..07c933c6c29a 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1914,7 +1914,7 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
unsigned int relation)
{
unsigned int old_target_freq = target_freq;
- int index, retval;
+ int index;
if (cpufreq_disabled())
return -ENODEV;
@@ -1943,12 +1943,7 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
if (!cpufreq_driver->target_index)
return -EINVAL;
- retval = cpufreq_frequency_table_target(policy, target_freq, relation,
- &index);
- if (unlikely(retval)) {
- pr_err("%s: Unable to find matching freq\n", __func__);
- return retval;
- }
+ index = cpufreq_frequency_table_target(policy, target_freq, relation);
return __target_index(policy, index);
}
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 2ee476f5a2bd..0c93cd9dee99 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -65,7 +65,7 @@ static unsigned int generic_powersave_bias_target(struct cpufreq_policy *policy,
{
unsigned int freq_req, freq_reduc, freq_avg;
unsigned int freq_hi, freq_lo;
- unsigned int index = 0;
+ unsigned int index;
unsigned int delay_hi_us;
struct policy_dbs_info *policy_dbs = policy->governor_data;
struct od_policy_dbs_info *dbs_info = to_dbs_info(policy_dbs);
@@ -79,19 +79,17 @@ static unsigned int generic_powersave_bias_target(struct cpufreq_policy *policy,
return freq_next;
}
- cpufreq_frequency_table_target(policy, freq_next, relation, &index);
+ index = cpufreq_frequency_table_target(policy, freq_next, relation);
freq_req = freq_table[index].frequency;
freq_reduc = freq_req * od_tuners->powersave_bias / 1000;
freq_avg = freq_req - freq_reduc;
/* Find freq bounds for freq_avg in freq_table */
- index = 0;
- cpufreq_frequency_table_target(policy, freq_avg, CPUFREQ_RELATION_H,
- &index);
+ index = cpufreq_frequency_table_target(policy, freq_avg,
+ CPUFREQ_RELATION_H);
freq_lo = freq_table[index].frequency;
- index = 0;
- cpufreq_frequency_table_target(policy, freq_avg, CPUFREQ_RELATION_L,
- &index);
+ index = cpufreq_frequency_table_target(policy, freq_avg,
+ CPUFREQ_RELATION_L);
freq_hi = freq_table[index].frequency;
/* Find out how long we have to be in hi and lo freqs */
diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c
index f145b64649ef..eac8bcbdaad1 100644
--- a/drivers/cpufreq/freq_table.c
+++ b/drivers/cpufreq/freq_table.c
@@ -114,9 +114,8 @@ int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy)
EXPORT_SYMBOL_GPL(cpufreq_generic_frequency_table_verify);
int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation,
- unsigned int *index)
+ unsigned int target_freq,
+ unsigned int relation)
{
struct cpufreq_frequency_table optimal = {
.driver_data = ~0,
@@ -129,6 +128,7 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
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);
@@ -192,16 +192,18 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
}
}
if (optimal.driver_data > i) {
- if (suboptimal.driver_data > i)
- return -EINVAL;
- *index = suboptimal.driver_data;
- } else
- *index = optimal.driver_data;
+ if (suboptimal.driver_data > i) {
+ WARN(1, "Invalid frequency table: %d\n", policy->cpu);
+ return 0;
+ }
- pr_debug("target index is %u, freq is:%u kHz\n", *index,
- table[*index].frequency);
+ index = suboptimal.driver_data;
+ } else
+ index = optimal.driver_data;
- return 0;
+ pr_debug("target index is %u, freq is:%u kHz\n", index,
+ table[index].frequency);
+ return index;
}
EXPORT_SYMBOL_GPL(cpufreq_frequency_table_target);
diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c
index bf267c2dfe20..b29c5c20c3a1 100644
--- a/drivers/cpufreq/powernv-cpufreq.c
+++ b/drivers/cpufreq/powernv-cpufreq.c
@@ -760,8 +760,8 @@ void powernv_cpufreq_work_fn(struct work_struct *work)
struct cpufreq_policy policy;
cpufreq_get_policy(&policy, cpu);
- cpufreq_frequency_table_target(&policy, policy.cur,
- CPUFREQ_RELATION_C, &index);
+ index = cpufreq_frequency_table_target(&policy, policy.cur,
+ CPUFREQ_RELATION_C);
powernv_cpufreq_target_index(&policy, index);
cpumask_andnot(&mask, &mask, policy.cpus);
}
diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c
index 05a9737278f3..7b596fa38ad2 100644
--- a/drivers/cpufreq/s3c24xx-cpufreq.c
+++ b/drivers/cpufreq/s3c24xx-cpufreq.c
@@ -293,11 +293,8 @@ static int s3c_cpufreq_target(struct cpufreq_policy *policy,
__func__, policy, target_freq, relation);
if (ftab) {
- if (cpufreq_frequency_table_target(policy, target_freq,
- relation, &index)) {
- s3c_freq_dbg("%s: table failed\n", __func__);
- return -EINVAL;
- }
+ index = cpufreq_frequency_table_target(policy, target_freq,
+ relation);
s3c_freq_dbg("%s: adjust %d to entry %d (%u)\n", __func__,
target_freq, index, ftab[index].frequency);
@@ -314,7 +311,6 @@ static int s3c_cpufreq_target(struct cpufreq_policy *policy,
pll = NULL;
} else {
struct cpufreq_policy tmp_policy;
- int ret;
/* we keep the cpu pll table in Hz, to ensure we get an
* accurate value for the PLL output. */
@@ -324,18 +320,12 @@ static int s3c_cpufreq_target(struct cpufreq_policy *policy,
tmp_policy.cpu = policy->cpu;
tmp_policy.freq_table = pll_reg;
- /* cpufreq_frequency_table_target uses a pointer to 'index'
- * which is the number of the table entry, not the value of
+ /* cpufreq_frequency_table_target returns the index
+ * of the table entry, not the value of
* the table entry's index field. */
- ret = cpufreq_frequency_table_target(&tmp_policy, target_freq,
- relation, &index);
-
- if (ret < 0) {
- pr_err("%s: no PLL available\n", __func__);
- goto err_notpossible;
- }
-
+ index = cpufreq_frequency_table_target(&tmp_policy, target_freq,
+ relation);
pll = pll_reg + index;
s3c_freq_dbg("%s: target %u => %u\n",
@@ -345,10 +335,6 @@ static int s3c_cpufreq_target(struct cpufreq_policy *policy,
}
return s3c_cpufreq_settarget(policy, target_freq, pll);
-
- err_notpossible:
- pr_err("no compatible settings for %d\n", target_freq);
- return -EINVAL;
}
struct clk *s3c_cpufreq_clk_get(struct device *dev, const char *name)
diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index 6b0cfc3b8c46..4f4e9df9b7fc 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -246,11 +246,8 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
new_freq = s5pv210_freq_table[index].frequency;
/* Finding current running level index */
- if (cpufreq_frequency_table_target(policy, old_freq, CPUFREQ_RELATION_H,
- &priv_index)) {
- ret = -EINVAL;
- goto exit;
- }
+ priv_index = cpufreq_frequency_table_target(policy, old_freq,
+ CPUFREQ_RELATION_H);
arm_volt = dvs_conf[index].arm_volt;
int_volt = dvs_conf[index].int_volt;
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index bdd7f0c035ae..c378776628b4 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -599,8 +599,7 @@ int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy);
int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
unsigned int target_freq,
- unsigned int relation,
- unsigned int *index);
+ unsigned int relation);
int cpufreq_frequency_table_get_index(struct cpufreq_policy *policy,
unsigned int freq);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 13:39:40 +0000