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

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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: 09ca4c9b59 (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>
This commit is contained in:
Shilpasri G Bhat 2018-01-12 12:43:53 +05:30 committed by Rafael J. Wysocki
parent d8de7a44e1
commit 3fa4680b86
1 changed files with 2 additions and 2 deletions
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4
drivers/cpufreq/powernv-cpufreq.c
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@ -337,9 +337,9 @@ static int init_powernv_pstates(void)
if (id == pstate_max)
powernv_pstate_info.max = i;
else if (id == pstate_nominal)
if (id == pstate_nominal)
powernv_pstate_info.nominal = i;
else if (id == pstate_min)
if (id == pstate_min)
powernv_pstate_info.min = i;
if (powernv_pstate_info.wof_enabled && id == pstate_turbo) {