Hi,
Meelis Roos reported hangs during boot in the longhaul cpufreq driver, after
commit 12478cf0c55 (cpufreq: Make sure frequency transitions are serialized).
The root-cause of this issue is the extra invocation of the
cpufreq_freq_transition_begin() and cpufreq_freq_transition_end() APIs in the
longhaul driver. I found similar issues in the powernow-k6 and powernow-k7
drivers as well. This patchset fixes the issue in all the 3 drivers.
Srivatsa S. Bhat (3):
cpufreq, powernow-k7: Fix double invocation of cpufreq_freq_transition_begin/end
cpufreq, powernow-k6: Fix double invocation of cpufreq_freq_transition_begin/end
cpufreq, longhaul: Fix double invocation of cpufreq_freq_transition_begin/end
drivers/cpufreq/longhaul.c | 12 ++++++++----
drivers/cpufreq/powernow-k6.c | 20 +++++++++++---------
drivers/cpufreq/powernow-k7.c | 4 ----
3 files changed, 19 insertions(+), 17 deletions(-)
Thanks,
Srivatsa S. Bhat
IBM Linux Technology Center
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