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path: root/drivers/cpufreq/elanfreq.c
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Diffstat (limited to 'drivers/cpufreq/elanfreq.c')
-rw-r--r--drivers/cpufreq/elanfreq.c88
1 files changed, 7 insertions, 81 deletions
diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c
index 823a400d98fd..de08acff5101 100644
--- a/drivers/cpufreq/elanfreq.c
+++ b/drivers/cpufreq/elanfreq.c
@@ -105,32 +105,9 @@ static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu)
}
-/**
- * elanfreq_set_cpu_frequency: Change the CPU core frequency
- * @cpu: cpu number
- * @freq: frequency in kHz
- *
- * This function takes a frequency value and changes the CPU frequency
- * according to this. Note that the frequency has to be checked by
- * elanfreq_validatespeed() for correctness!
- *
- * There is no return value.
- */
-
-static void elanfreq_set_cpu_state(struct cpufreq_policy *policy,
- unsigned int state)
+static int elanfreq_target(struct cpufreq_policy *policy,
+ unsigned int state)
{
- struct cpufreq_freqs freqs;
-
- freqs.old = elanfreq_get_cpu_frequency(0);
- freqs.new = elan_multiplier[state].clock;
-
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
- printk(KERN_INFO "elanfreq: attempting to set frequency to %i kHz\n",
- elan_multiplier[state].clock);
-
-
/*
* Access to the Elan's internal registers is indexed via
* 0x22: Chip Setup & Control Register Index Register (CSCI)
@@ -161,39 +138,8 @@ static void elanfreq_set_cpu_state(struct cpufreq_policy *policy,
udelay(10000);
local_irq_enable();
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-};
-
-
-/**
- * elanfreq_validatespeed: test if frequency range is valid
- * @policy: the policy to validate
- *
- * This function checks if a given frequency range in kHz is valid
- * for the hardware supported by the driver.
- */
-
-static int elanfreq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &elanfreq_table[0]);
-}
-
-static int elanfreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int newstate = 0;
-
- if (cpufreq_frequency_table_target(policy, &elanfreq_table[0],
- target_freq, relation, &newstate))
- return -EINVAL;
-
- elanfreq_set_cpu_state(policy, newstate);
-
return 0;
}
-
-
/*
* Module init and exit code
*/
@@ -202,7 +148,6 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy)
{
struct cpuinfo_x86 *c = &cpu_data(0);
unsigned int i;
- int result;
/* capability check */
if ((c->x86_vendor != X86_VENDOR_AMD) ||
@@ -221,21 +166,8 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy)
/* cpuinfo and default policy values */
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
- policy->cur = elanfreq_get_cpu_frequency(0);
-
- result = cpufreq_frequency_table_cpuinfo(policy, elanfreq_table);
- if (result)
- return result;
- cpufreq_frequency_table_get_attr(elanfreq_table, policy->cpu);
- return 0;
-}
-
-
-static int elanfreq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
+ return cpufreq_table_validate_and_show(policy, elanfreq_table);
}
@@ -261,20 +193,14 @@ __setup("elanfreq=", elanfreq_setup);
#endif
-static struct freq_attr *elanfreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
-
static struct cpufreq_driver elanfreq_driver = {
.get = elanfreq_get_cpu_frequency,
- .verify = elanfreq_verify,
- .target = elanfreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = elanfreq_target,
.init = elanfreq_cpu_init,
- .exit = elanfreq_cpu_exit,
+ .exit = cpufreq_generic_exit,
.name = "elanfreq",
- .attr = elanfreq_attr,
+ .attr = cpufreq_generic_attr,
};
static const struct x86_cpu_id elan_id[] = {