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path: root/drivers/cpufreq/sa1100-cpufreq.c
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Diffstat (limited to 'drivers/cpufreq/sa1100-cpufreq.c')
-rw-r--r--drivers/cpufreq/sa1100-cpufreq.c49
1 files changed, 11 insertions, 38 deletions
diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c
index cff18e87ca58..623da742f8e7 100644
--- a/drivers/cpufreq/sa1100-cpufreq.c
+++ b/drivers/cpufreq/sa1100-cpufreq.c
@@ -177,60 +177,33 @@ static void sa1100_update_dram_timings(int current_speed, int new_speed)
}
}
-static int sa1100_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int sa1100_target(struct cpufreq_policy *policy, unsigned int ppcr)
{
unsigned int cur = sa11x0_getspeed(0);
- unsigned int new_ppcr;
- struct cpufreq_freqs freqs;
-
- new_ppcr = sa11x0_freq_to_ppcr(target_freq);
- switch (relation) {
- case CPUFREQ_RELATION_L:
- if (sa11x0_ppcr_to_freq(new_ppcr) > policy->max)
- new_ppcr--;
- break;
- case CPUFREQ_RELATION_H:
- if ((sa11x0_ppcr_to_freq(new_ppcr) > target_freq) &&
- (sa11x0_ppcr_to_freq(new_ppcr - 1) >= policy->min))
- new_ppcr--;
- break;
- }
-
- freqs.old = cur;
- freqs.new = sa11x0_ppcr_to_freq(new_ppcr);
+ unsigned int new_freq;
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+ new_freq = sa11x0_freq_table[ppcr].frequency;
- if (freqs.new > cur)
- sa1100_update_dram_timings(cur, freqs.new);
+ if (new_freq > cur)
+ sa1100_update_dram_timings(cur, new_freq);
- PPCR = new_ppcr;
+ PPCR = ppcr;
- if (freqs.new < cur)
- sa1100_update_dram_timings(cur, freqs.new);
-
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+ if (new_freq < cur)
+ sa1100_update_dram_timings(cur, new_freq);
return 0;
}
static int __init sa1100_cpu_init(struct cpufreq_policy *policy)
{
- if (policy->cpu != 0)
- return -EINVAL;
- policy->cur = policy->min = policy->max = sa11x0_getspeed(0);
- policy->cpuinfo.min_freq = 59000;
- policy->cpuinfo.max_freq = 287000;
- policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
- return 0;
+ return cpufreq_generic_init(policy, sa11x0_freq_table, CPUFREQ_ETERNAL);
}
static struct cpufreq_driver sa1100_driver __refdata = {
.flags = CPUFREQ_STICKY,
- .verify = sa11x0_verify_speed,
- .target = sa1100_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = sa1100_target,
.get = sa11x0_getspeed,
.init = sa1100_cpu_init,
.name = "sa1100",