This patch converts existing .target() to newly defined light weight
.target_index() routine for this driver.
CPUFreq core will call cpufreq_frequency_table_target() before calling this
routine and will pass index to it.
Acked-by: Hans-Christian Egtvedt <egtv...@samfundet.no>
Signed-off-by: Viresh Kumar <viresh.ku...@linaro.org>
---
drivers/cpufreq/at32ap-cpufreq.c | 23 +++++------------------
1 file changed, 5 insertions(+), 18 deletions(-)
diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c
index 7439ded..81d0752 100644
--- a/drivers/cpufreq/at32ap-cpufreq.c
+++ b/drivers/cpufreq/at32ap-cpufreq.c
@@ -35,25 +35,12 @@ static unsigned int at32_get_speed(unsigned int cpu)
static unsigned int ref_freq;
static unsigned long loops_per_jiffy_ref;
-static int at32_set_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int at32_set_target(struct cpufreq_policy *policy, unsigned int index)
{
struct cpufreq_freqs freqs;
- long freq;
-
- /* Convert target_freq from kHz to Hz */
- freq = clk_round_rate(cpuclk, target_freq * 1000);
-
- /* Check if policy->min <= new_freq <= policy->max */
- if(freq < (policy->min * 1000) || freq > (policy->max * 1000))
- return -EINVAL;
-
- pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000);
freqs.old = at32_get_speed(0);
- freqs.new = (freq + 500) / 1000;
- freqs.flags = 0;
+ freqs.new = freq_table[index].frequency;
if (!ref_freq) {
ref_freq = freqs.old;
@@ -64,13 +51,13 @@ static int at32_set_target(struct cpufreq_policy *policy,
if (freqs.old < freqs.new)
boot_cpu_data.loops_per_jiffy = cpufreq_scale(
loops_per_jiffy_ref, ref_freq, freqs.new);
- clk_set_rate(cpuclk, freq);
+ clk_set_rate(cpuclk, freqs.new * 1000);
if (freqs.new < freqs.old)
boot_cpu_data.loops_per_jiffy = cpufreq_scale(
loops_per_jiffy_ref, ref_freq, freqs.new);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
- pr_debug("cpufreq: set frequency %lu Hz\n", freq);
+ pr_debug("cpufreq: set frequency %u Hz\n", freqs.new * 1000);
return 0;
}
@@ -139,7 +126,7 @@ static struct cpufreq_driver at32_driver = {
.name = "at32ap",
.init = at32_cpufreq_driver_init,
.verify = cpufreq_generic_frequency_table_verify,
- .target = at32_set_target,
+ .target_index = at32_set_target,
.get = at32_get_speed,
.flags = CPUFREQ_STICKY,
};
--
1.7.12.rc2.18.g61b472e
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
