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authorShilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>2018-01-12 12:43:53 +0530
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-01-12 13:44:08 +0100
commit3fa4680b860bf48b437d6a2c039789c4abe202ae (patch)
treee50e202b40275ad7b8066bc63311237516cabd98 /drivers/cpufreq
parentd8de7a44e11f98f2c2a4c2e12e79ba9ffb839306 (diff)
downloadlinux-3fa4680b860bf48b437d6a2c039789c4abe202ae.tar.bz2
cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
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>
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/powernv-cpufreq.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c
index 8a4e2ce0804c..29cdec198657 100644
--- a/drivers/cpufreq/powernv-cpufreq.c
+++ b/drivers/cpufreq/powernv-cpufreq.c
@@ -337,9 +337,9 @@ next:
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) {