tree ac31192cd6aa6929518ad87af0de8136d0c3e69a
parent 75a3f11c7bad580dc5fbf4175f5dc39192f088d5
author Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> 1515741233 +0530
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1519310535 +0100

cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin

commit 3fa4680b860bf48b437d6a2c039789c4abe202ae upstream.

Some OpenPOWER boxes can have same pstate values for nominal and
pmin pstates. In these boxes the current code will not initialize
'powernv_pstate_info.min' variable and result in erroneous CPU
frequency reporting. This patch fixes this problem.

Fixes: 09ca4c9b5958 (cpufreq: powernv: Replacing pstate_id with frequency table index)
Reported-by: Alvin Wang <wangat@tw.ibm.com>
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 4.8+ <stable@vger.kernel.org> # 4.8+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>