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perf/smmuv3: Add devicetree support

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Add device-tree support to the SMMUv3 PMCG driver.

Signed-off-by: Jay Chen <[email protected]>
Signed-off-by: Jean-Philippe Brucker <[email protected]>
Signed-off-by: Robin Murphy <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
This commit is contained in:
Jean-Philippe Brucker authored and Will Deacon committed 2021-12-14 12:09:52 +00:00
1 parent 2704e75943
commit 3f7be43561
1 file changed
+10 -1
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drivers/perf/arm_smmuv3_pmu.c
+10 -1
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@@ -47,6 +47,7 @@
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/msi.h>
#include <linux/of.h>
#include <linux/perf_event.h>
#include <linux/platform_device.h>
#include <linux/smp.h>
@@ -834,7 +835,8 @@ static int smmu_pmu_probe(struct platform_device *pdev)
return -EINVAL;
}
smmu_pmu_get_acpi_options(smmu_pmu);
if (!dev->of_node)
smmu_pmu_get_acpi_options(smmu_pmu);
/* Pick one CPU to be the preferred one to use */
smmu_pmu->on_cpu = raw_smp_processor_id();
@@ -884,9 +886,16 @@ static void smmu_pmu_shutdown(struct platform_device *pdev)
smmu_pmu_disable(&smmu_pmu->pmu);
}
static const struct of_device_id smmu_pmu_of_match[] = {
{ .compatible = "arm,smmu-v3-pmcg" },
{}
};
MODULE_DEVICE_TABLE(of, smmu_pmu_of_match);
static struct platform_driver smmu_pmu_driver = {
.driver = {
.name = "arm-smmu-v3-pmcg",
.of_match_table = of_match_ptr(smmu_pmu_of_match),
.suppress_bind_attrs = true,
},
.probe = smmu_pmu_probe,