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Subject[PATCH 17/31] cpufreq: loongson2: Covert to light weight ->target() routine
Date
This patch converts existing .target_old() to newly defined light weight
.target() routine for this driver.

CPUFreq core will call cpufreq_frequency_table_target() before calling this
routine and will pass index to it.

Cc: John Crispin <blogic@openwrt.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
drivers/cpufreq/loongson2_cpufreq.c | 21 +++++----------------
1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index afdece4..a9e6e35 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -53,11 +53,9 @@ static unsigned int loongson2_cpufreq_get(unsigned int cpu)
* Here we notify other drivers of the proposed change and the final change.
*/
static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+ unsigned int index)
{
unsigned int cpu = policy->cpu;
- unsigned int newstate = 0;
cpumask_t cpus_allowed;
struct cpufreq_freqs freqs;
unsigned int freq;
@@ -65,26 +63,17 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
cpus_allowed = current->cpus_allowed;
set_cpus_allowed_ptr(current, cpumask_of(cpu));

- if (cpufreq_frequency_table_target
- (policy, &loongson2_clockmod_table[0], target_freq, relation,
- &newstate))
- return -EINVAL;
-
freq =
((cpu_clock_freq / 1000) *
- loongson2_clockmod_table[newstate].driver_data) / 8;
- if (freq < policy->min || freq > policy->max)
- return -EINVAL;
+ loongson2_clockmod_table[index].driver_data) / 8;

- pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000);
+ pr_debug("cpufreq: requested frequency %u Hz\n",
+ loongson2_clockmod_table[index].frequency * 1000);

freqs.old = loongson2_cpufreq_get(cpu);
freqs.new = freq;
freqs.flags = 0;

- if (freqs.new == freqs.old)
- return 0;
-
/* notifiers */
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);

@@ -148,7 +137,7 @@ static struct cpufreq_driver loongson2_cpufreq_driver = {
.name = "loongson2",
.init = loongson2_cpufreq_cpu_init,
.verify = cpufreq_generic_frequency_table_verify,
- .target_old = loongson2_cpufreq_target,
+ .target = loongson2_cpufreq_target,
.get = loongson2_cpufreq_get,
.exit = loongson2_cpufreq_exit,
.attr = cpufreq_generic_attr,
--
1.7.12.rc2.18.g61b472e


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