diff options
| -rw-r--r-- | arch/csky/kernel/perf_event.c | 50 |
1 files changed, 48 insertions, 2 deletions
diff --git a/arch/csky/kernel/perf_event.c b/arch/csky/kernel/perf_event.c index 376c972f5f37..2282554840c6 100644 --- a/arch/csky/kernel/perf_event.c +++ b/arch/csky/kernel/perf_event.c @@ -949,7 +949,7 @@ static int csky_pmu_add(struct perf_event *event, int flags) return 0; } -int __init init_hw_perf_events(void) +int init_hw_perf_events(void) { csky_pmu.pmu = (struct pmu) { .pmu_enable = csky_pmu_enable, @@ -1028,4 +1028,50 @@ int __init init_hw_perf_events(void) return perf_pmu_register(&csky_pmu.pmu, "cpu", PERF_TYPE_RAW); } -arch_initcall(init_hw_perf_events); + +int csky_pmu_device_probe(struct platform_device *pdev, + const struct of_device_id *of_table) +{ + int ret; + + ret = init_hw_perf_events(); + if (ret) { + pr_notice("[perf] failed to probe PMU!\n"); + return ret; + } + + return ret; +} + +const static struct of_device_id csky_pmu_of_device_ids[] = { + {.compatible = "csky,csky-pmu"}, + {}, +}; + +static int csky_pmu_dev_probe(struct platform_device *pdev) +{ + return csky_pmu_device_probe(pdev, csky_pmu_of_device_ids); +} + +static struct platform_driver csky_pmu_driver = { + .driver = { + .name = "csky-pmu", + .of_match_table = csky_pmu_of_device_ids, + }, + .probe = csky_pmu_dev_probe, +}; + +static int __init csky_pmu_probe(void) +{ + int ret; + + ret = platform_driver_register(&csky_pmu_driver); + if (ret) + pr_notice("[perf] PMU initialization failed\n"); + else + pr_notice("[perf] PMU initialization done\n"); + + return ret; +} + +device_initcall(csky_pmu_probe); |