ARM: 8130/1: cpuidle/cpuidle-big_little: fix reading cpu id part number

[firefly-linux-kernel-4.4.55.git] / drivers / cpuidle / cpuidle-big_little.c

diff --git a/drivers/cpuidle/cpuidle-big_little.c b/drivers/cpuidle/cpuidle-big_little.c
index 344d79fa34078166694d1301b4c93e939a94e76b..ef94c3b81f18048c6feee67368d2fd24da416424 100644 (file)
--- a/drivers/cpuidle/cpuidle-big_little.c
+++ b/drivers/cpuidle/cpuidle-big_little.c
@@ -138,25 +138,18 @@ static int bl_enter_powerdown(struct cpuidle_device *dev,
        return idx;
 }
 
-static int __init bl_idle_driver_init(struct cpuidle_driver *drv, int cpu_id)
+static int __init bl_idle_driver_init(struct cpuidle_driver *drv, int part_id)
 {
-       struct cpuinfo_arm *cpu_info;
        struct cpumask *cpumask;
-       unsigned long cpuid;
        int cpu;
 
        cpumask = kzalloc(cpumask_size(), GFP_KERNEL);
        if (!cpumask)
                return -ENOMEM;
 
-       for_each_possible_cpu(cpu) {
-               cpu_info = &per_cpu(cpu_data, cpu);
-               cpuid = is_smp() ? cpu_info->cpuid : read_cpuid_id();
-
-               /* read cpu id part number */
-               if ((cpuid & 0xFFF0) == cpu_id)
+       for_each_possible_cpu(cpu)
+               if (smp_cpuid_part(cpu) == part_id)
                        cpumask_set_cpu(cpu, cpumask);
-       }
 
        drv->cpumask = cpumask;