diff options
Diffstat (limited to 'drivers/cpufreq/cris-artpec3-cpufreq.c')
-rw-r--r-- | drivers/cpufreq/cris-artpec3-cpufreq.c | 64 |
1 files changed, 6 insertions, 58 deletions
diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c index cb8276dd19c..86559040c54 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) |