diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/psci.h | 8 | ||||
| -rw-r--r-- | arch/arm/kernel/psci.c | 13 |
2 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/include/asm/psci.h b/arch/arm/include/asm/psci.h index 78ce38ff19f..a079cbee427 100644 --- a/arch/arm/include/asm/psci.h +++ b/arch/arm/include/asm/psci.h @@ -37,4 +37,12 @@ struct psci_operations { extern struct psci_operations psci_ops; +#ifdef CONFIG_ARM_PSCI +extern int __init psci_probe(void); +#else +static inline int psci_probe(void) +{ + return -ENODEV; +} +#endif #endif /* __ASM_ARM_PSCI_H */ diff --git a/arch/arm/kernel/psci.c b/arch/arm/kernel/psci.c index 5211f18cd2b..03c10f65add 100644 --- a/arch/arm/kernel/psci.c +++ b/arch/arm/kernel/psci.c @@ -212,3 +212,16 @@ out_put_node: return 0; } early_initcall(psci_init); + +int __init psci_probe(void) +{ + struct device_node *np; + int ret = -ENODEV; + + np = of_find_matching_node(NULL, psci_of_match); + if (np) + ret = 0; + + of_node_put(np); + return ret; +} |