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authorRichard Zhao <richard.zhao@freescale.com>2012-09-14 21:15:05 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2012-09-14 21:15:05 +0200
commitcd664cc3a574b30988476143c1dcc9298b1fa531 (patch)
tree9153bd08bb0d8ca9ac69667086c4101a91b9ca33
parent21ce35dc79346eb206f3271f3cc07fb9a5452ae7 (diff)
downloadtalos-op-linux-cd664cc3a574b30988476143c1dcc9298b1fa531.tar.gz
talos-op-linux-cd664cc3a574b30988476143c1dcc9298b1fa531.zip
cpufreq: OMAP: remove loops_per_jiffy recalculate for smp
With ARM smp common code recalculating loops_per_jiffy in a cpufreq transiton notifier call, the loops_per_jiffy recalculate in omap-cpufreq driver becomes redundant. Remove it. Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
-rw-r--r--drivers/cpufreq/omap-cpufreq.c35
1 files changed, 0 insertions, 35 deletions
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index b47034e650a5..6e22f4481c07 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -40,16 +40,6 @@
/* OPP tolerance in percentage */
#define OPP_TOLERANCE 4
-#ifdef CONFIG_SMP
-struct lpj_info {
- unsigned long ref;
- unsigned int freq;
-};
-
-static DEFINE_PER_CPU(struct lpj_info, lpj_ref);
-static struct lpj_info global_lpj_ref;
-#endif
-
static struct cpufreq_frequency_table *freq_table;
static atomic_t freq_table_users = ATOMIC_INIT(0);
static struct clk *mpu_clk;
@@ -161,31 +151,6 @@ static int omap_target(struct cpufreq_policy *policy,
}
freqs.new = omap_getspeed(policy->cpu);
-#ifdef CONFIG_SMP
- /*
- * Note that loops_per_jiffy is not updated on SMP systems in
- * cpufreq driver. So, update the per-CPU loops_per_jiffy value
- * on frequency transition. We need to update all dependent CPUs.
- */
- for_each_cpu(i, policy->cpus) {
- struct lpj_info *lpj = &per_cpu(lpj_ref, i);
- if (!lpj->freq) {
- lpj->ref = per_cpu(cpu_data, i).loops_per_jiffy;
- lpj->freq = freqs.old;
- }
-
- per_cpu(cpu_data, i).loops_per_jiffy =
- cpufreq_scale(lpj->ref, lpj->freq, freqs.new);
- }
-
- /* And don't forget to adjust the global one */
- if (!global_lpj_ref.freq) {
- global_lpj_ref.ref = loops_per_jiffy;
- global_lpj_ref.freq = freqs.old;
- }
- loops_per_jiffy = cpufreq_scale(global_lpj_ref.ref, global_lpj_ref.freq,
- freqs.new);
-#endif
done:
/* notifiers */
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