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| author | Richard Zhao <richard.zhao@freescale.com> | 2012-09-14 21:15:05 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-09-14 21:15:05 +0200 |
| commit | cd664cc3a574b30988476143c1dcc9298b1fa531 (patch) | |
| tree | 9153bd08bb0d8ca9ac69667086c4101a91b9ca33 /drivers/cpufreq/omap-cpufreq.c | |
| parent | 21ce35dc79346eb206f3271f3cc07fb9a5452ae7 (diff) | |
| download | blackbird-op-linux-cd664cc3a574b30988476143c1dcc9298b1fa531.tar.gz blackbird-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>
Diffstat (limited to 'drivers/cpufreq/omap-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/omap-cpufreq.c | 35 |
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 */ |
