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Subject[PATCH 2/3] drivers/perf: arm_pmu: add arm_pmu_device_remove
Date
Add ARM PMU removal function. This will be required by perf event drivers
when option DEBUG_TEST_DRIVER_REMOVE is enabled.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
---
drivers/perf/arm_pmu.c | 14 ++++++++++++++
include/linux/perf/arm_pmu.h | 2 ++
2 files changed, 16 insertions(+)

diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index a9bbdbf..b7ddc4c 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -1022,6 +1022,7 @@ int arm_pmu_device_probe(struct platform_device *pdev,
armpmu_init(pmu);

pmu->plat_device = pdev;
+ platform_set_drvdata(pdev, pmu);

if (node && (of_id = of_match_node(of_table, pdev->dev.of_node))) {
init_fn = of_id->data;
@@ -1073,6 +1074,19 @@ int arm_pmu_device_probe(struct platform_device *pdev,
return ret;
}

+int arm_pmu_device_remove(struct platform_device *pdev)
+{
+ struct arm_pmu *pmu = platform_get_drvdata(pdev);
+
+ __oprofile_cpu_pmu = NULL;
+
+ perf_pmu_unregister(&pmu->pmu);
+
+ cpu_pmu_destroy(pmu);
+
+ return 0;
+}
+
static int arm_pmu_hp_init(void)
{
int ret;
diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h
index 8462da2..8106f27 100644
--- a/include/linux/perf/arm_pmu.h
+++ b/include/linux/perf/arm_pmu.h
@@ -159,6 +159,8 @@ struct pmu_probe_info {
int arm_pmu_device_probe(struct platform_device *pdev,
const struct of_device_id *of_table,
const struct pmu_probe_info *probe_table);
+int arm_pmu_device_remove(struct platform_device *pdev);
+

#define ARMV8_PMU_PDEV_NAME "armv8-pmu"

--
2.10.2
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