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ARM: scu: mask cluster id from cpu_logical_map

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With commit a0ae0240 (ARM: kernel: add device tree init map function),
the cpu id value may include the cluster id and is no longer 0-3, so we
need to mask it in scu_power_mode to get the local cpu number. Since we
are only dealing with the cpu we are running on, the cluster id should
not ever be needed.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
This commit is contained in:
Rob Herring 2013-01-31 13:26:29 -06:00
parent eed8812387
commit c7d5b93e98
1 changed files with 1 additions and 1 deletions
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arch/arm/kernel/smp_scu.c
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@ -75,7 +75,7 @@ void scu_enable(void __iomem *scu_base)
int scu_power_mode(void __iomem *scu_base, unsigned int mode) int scu_power_mode(void __iomem *scu_base, unsigned int mode)
{ {
unsigned int val; unsigned int val;
int cpu = cpu_logical_map(smp_processor_id()); int cpu = MPIDR_AFFINITY_LEVEL(cpu_logical_map(smp_processor_id()), 0);
if (mode > 3 || mode == 1 || cpu > 3) if (mode > 3 || mode == 1 || cpu > 3)
return -EINVAL; return -EINVAL;