cpufreq: amd_pstate: fix wrong lowest perf fetch

Fix the wrong lowest perf value reading which is used for new
des_perf calculation by governor requested, the incorrect min_perf will
get incorrect des_perf to be set , that will cause the system frequency
changing unexpectedly.

Reviewed-by: Huang Rui <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Signed-off-by: Perry Yuan <[email protected]>
Signed-off-by: Su Jinzhou <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: Perry Yuan

drivers/cpufreq/amd-pstate.c

@@ -312,7 +312,7 @@ static int amd_pstate_target(struct cpufreq_policy *policy,
 		return -ENODEV;
 
 	cap_perf = READ_ONCE(cpudata->highest_perf);
-	min_perf = READ_ONCE(cpudata->lowest_nonlinear_perf);
+	min_perf = READ_ONCE(cpudata->lowest_perf);
 	max_perf = cap_perf;
 
 	freqs.old = policy->cur;