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| author | Dima Zavin <dima@android.com> | 2011-10-19 16:35:49 -0700 |
|---|---|---|
| committer | Dima Zavin <dima@android.com> | 2011-10-19 20:11:00 -0700 |
| commit | 3f324f1cd090b7c98505ab0f03c5fc15bbad3477 (patch) | |
| tree | 553e672bf1d6774875625e71152355b7f5054421 | |
| parent | fcc76b033d0f742e6a62b130d621a307ac82ceba (diff) | |
| download | kernel_samsung_tuna-3f324f1cd090b7c98505ab0f03c5fc15bbad3477.zip kernel_samsung_tuna-3f324f1cd090b7c98505ab0f03c5fc15bbad3477.tar.gz kernel_samsung_tuna-3f324f1cd090b7c98505ab0f03c5fc15bbad3477.tar.bz2 | |
ARM: omap2: cpufreq: prevent CPU hotplug while scaling
Change-Id: I82f1e671a8c4eec2629aae223e4bb2043eb11840
Signed-off-by: Dima Zavin <dima@android.com>
| -rw-r--r-- | arch/arm/mach-omap2/omap2plus-cpufreq.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap2plus-cpufreq.c b/arch/arm/mach-omap2/omap2plus-cpufreq.c index 85a34a5..c11f7fd 100644 --- a/arch/arm/mach-omap2/omap2plus-cpufreq.c +++ b/arch/arm/mach-omap2/omap2plus-cpufreq.c @@ -92,6 +92,8 @@ static int omap_cpufreq_scale(unsigned int target_freq, unsigned int cur_freq) if ((freqs.old == freqs.new) && (cur_freq = freqs.new)) return 0; + get_online_cpus(); + /* notifiers */ for_each_online_cpu(freqs.cpu) cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); @@ -134,6 +136,8 @@ static int omap_cpufreq_scale(unsigned int target_freq, unsigned int cur_freq) for_each_online_cpu(freqs.cpu) cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + put_online_cpus(); + return ret; } |