1 files changed, 7 insertions, 8 deletions

diff --git a/arch/blackfin/kernel/perf_event.c b/arch/blackfin/kernel/perf_event.c
index 974e55496db3..ea2032013cc2 100644
--- a/arch/blackfin/kernel/perf_event.c
+++ b/arch/blackfin/kernel/perf_event.c
@@ -389,14 +389,6 @@ static int bfin_pmu_event_init(struct perf_event *event)
         if (attr->exclude_hv || attr->exclude_idle)
                 return -EPERM;
 
-        /*
-         * All of the on-chip counters are "limited", in that they have
-         * no interrupts, and are therefore unable to do sampling without
-         * further work and timer assistance.
-         */
-        if (hwc->sample_period)
-                return -EINVAL;
-
         ret = 0;
         switch (attr->type) {
         case PERF_TYPE_RAW:
@@ -490,6 +482,13 @@ static int __init bfin_pmu_init(void)
 {
         int ret;
 
+        /*
+         * All of the on-chip counters are "limited", in that they have
+         * no interrupts, and are therefore unable to do sampling without
+         * further work and timer assistance.
+         */
+        pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT;
+
         ret = perf_pmu_register(&pmu, "cpu", PERF_TYPE_RAW);
         if (!ret)
                 perf_cpu_notifier(bfin_pmu_notifier);