[PATCH 4/4] cpufreq: OMAP: scale the iva coprocessor if available

From: Joshua Emele
Date: Tue Nov 06 2012 - 20:48:38 EST



Signed-off-by: Joshua Emele <jemele@xxxxxxxxx>
---
drivers/cpufreq/omap-cpufreq.c | 17 ++++++++++++++---
1 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index e8bcad8..103fa8b 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -79,7 +79,7 @@ static int omap_target(struct cpufreq_policy *policy,
unsigned int target_freq,
unsigned int relation)
{
- unsigned int i;
+ unsigned int i, opp_index;
int r, ret = 0;
struct cpufreq_freqs freqs;
struct opp *opp;
@@ -92,13 +92,13 @@ static int omap_target(struct cpufreq_policy *policy,
}

ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
- relation, &i);
+ relation, &opp_index);
if (ret) {
dev_dbg(mpu_dev, "%s: cpu%d: no freq match for %d(ret=%d)\n",
__func__, policy->cpu, target_freq, ret);
return ret;
}
- freqs.new = freq_table[i].frequency;
+ freqs.new = freq_table[opp_index].frequency;
if (!freqs.new) {
dev_err(mpu_dev, "%s: cpu%d: no match for freq %d\n", __func__,
policy->cpu, target_freq);
@@ -161,6 +161,17 @@ static int omap_target(struct cpufreq_policy *policy,
}

freqs.new = omap_getspeed(policy->cpu);
+
+ if (!ret && iva_freq_table && iva_clk) {
+ const unsigned long iva_rate =
+ iva_freq_table[opp_index].frequency * 1000;
+ ret = clk_set_rate(iva_clk, iva_rate);
+ if (ret) {
+ pr_err("%s: failed to set %s rate %lu[%d]\n",
+ __func__, iva_clk->name, iva_rate, ret);
+ }
+ }
+
#ifdef CONFIG_SMP
/*
* Note that loops_per_jiffy is not updated on SMP systems in
--
1.7.6.5

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