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path: root/drivers/cpufreq/cris-artpec3-cpufreq.c
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Diffstat (limited to 'drivers/cpufreq/cris-artpec3-cpufreq.c')
-rw-r--r--drivers/cpufreq/cris-artpec3-cpufreq.c64
1 files changed, 6 insertions, 58 deletions
diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index cb8276dd19ca..86559040c54c 100644
--- a/drivers/cpufreq/cris-artpec3-cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -27,18 +27,11 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
return clk_ctrl.pll ? 200000 : 6000;
}
-static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
- unsigned int state)
+static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
{
- struct cpufreq_freqs freqs;
reg_clkgen_rw_clk_ctrl clk_ctrl;
clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl);
- freqs.old = cris_freq_get_cpu_frequency(policy->cpu);
- freqs.new = cris_freq_table[state].frequency;
-
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
local_irq_disable();
/* Even though we may be SMP they will share the same clock
@@ -51,67 +44,22 @@ static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
local_irq_enable();
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int cris_freq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]);
-}
-
-static int cris_freq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int newstate = 0;
-
- if (cpufreq_frequency_table_target(policy, cris_freq_table,
- target_freq, relation, &newstate))
- return -EINVAL;
-
- cris_freq_set_cpu_state(policy, newstate);
-
return 0;
}
static int cris_freq_cpu_init(struct cpufreq_policy *policy)
{
- int result;
-
- /* cpuinfo and default policy values */
- policy->cpuinfo.transition_latency = 1000000; /* 1ms */
- policy->cur = cris_freq_get_cpu_frequency(0);
-
- result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table);
- if (result)
- return (result);
-
- cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu);
-
- return 0;
-}
-
-
-static int cris_freq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
+ return cpufreq_generic_init(policy, cris_freq_table, 1000000);
}
-
-static struct freq_attr *cris_freq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver cris_freq_driver = {
.get = cris_freq_get_cpu_frequency,
- .verify = cris_freq_verify,
- .target = cris_freq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = cris_freq_target,
.init = cris_freq_cpu_init,
- .exit = cris_freq_cpu_exit,
+ .exit = cpufreq_generic_exit,
.name = "cris_freq",
- .attr = cris_freq_attr,
+ .attr = cpufreq_generic_attr,
};
static int __init cris_freq_init(void)