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path: root/drivers/cpufreq/sa1110-cpufreq.c
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Diffstat (limited to 'drivers/cpufreq/sa1110-cpufreq.c')
-rw-r--r--drivers/cpufreq/sa1110-cpufreq.c46
1 files changed, 7 insertions, 39 deletions
diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c
index 39c90b6..2c2b2e6 100644
--- a/drivers/cpufreq/sa1110-cpufreq.c
+++ b/drivers/cpufreq/sa1110-cpufreq.c
@@ -229,36 +229,14 @@ sdram_update_refresh(u_int cpu_khz, struct sdram_params *sdram)
/*
* Ok, set the CPU frequency.
*/
-static int sa1110_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int sa1110_target(struct cpufreq_policy *policy, unsigned int ppcr)
{
struct sdram_params *sdram = &sdram_params;
- struct cpufreq_freqs freqs;
struct sdram_info sd;
unsigned long flags;
- unsigned int ppcr, unused;
-
- switch (relation) {
- case CPUFREQ_RELATION_L:
- ppcr = sa11x0_freq_to_ppcr(target_freq);
- if (sa11x0_ppcr_to_freq(ppcr) > policy->max)
- ppcr--;
- break;
- case CPUFREQ_RELATION_H:
- ppcr = sa11x0_freq_to_ppcr(target_freq);
- if (ppcr && (sa11x0_ppcr_to_freq(ppcr) > target_freq) &&
- (sa11x0_ppcr_to_freq(ppcr-1) >= policy->min))
- ppcr--;
- break;
- default:
- return -EINVAL;
- }
-
- freqs.old = sa11x0_getspeed(0);
- freqs.new = sa11x0_ppcr_to_freq(ppcr);
+ unsigned int unused;
- sdram_calculate_timing(&sd, freqs.new, sdram);
+ sdram_calculate_timing(&sd, sa11x0_freq_table[ppcr].frequency, sdram);
#if 0
/*
@@ -277,8 +255,6 @@ static int sa1110_target(struct cpufreq_policy *policy,
sd.mdcas[2] = 0xaaaaaaaa;
#endif
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
/*
* The clock could be going away for some time. Set the SDRAMs
* to refresh rapidly (every 64 memory clock cycles). To get
@@ -323,30 +299,22 @@ static int sa1110_target(struct cpufreq_policy *policy,
/*
* Now, return the SDRAM refresh back to normal.
*/
- sdram_update_refresh(freqs.new, sdram);
-
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+ sdram_update_refresh(sa11x0_freq_table[ppcr].frequency, sdram);
return 0;
}
static int __init sa1110_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);
}
/* sa1110_driver needs __refdata because it must remain after init registers
* it with cpufreq_register_driver() */
static struct cpufreq_driver sa1110_driver __refdata = {
.flags = CPUFREQ_STICKY,
- .verify = sa11x0_verify_speed,
- .target = sa1110_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = sa1110_target,
.get = sa11x0_getspeed,
.init = sa1110_cpu_init,
.name = "sa1110",
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