diff options
| author | Jean-Philippe Brucker <jean-philippe@linaro.org> | 2021-11-17 14:48:44 +0000 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-12-14 12:09:52 +0000 |
| commit | 3f7be43561766b7ad91661580376913c997613d6 (patch) | |
| tree | afcee3ac5a486bf2d874d51cdd2b578ea8161d86 /drivers/perf | |
| parent | 2704e7594383c0275dcb65e05408260ad34f3e15 (diff) | |
| download | linux-3f7be43561766b7ad91661580376913c997613d6.tar.bz2 | |
perf/smmuv3: Add devicetree support
Add device-tree support to the SMMUv3 PMCG driver.
Signed-off-by: Jay Chen <jkchen@linux.alibaba.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20211117144844.241072-3-jean-philippe@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/perf')
| -rw-r--r-- | drivers/perf/arm_smmuv3_pmu.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c index 226348822ab3..19697617153a 100644 --- a/drivers/perf/arm_smmuv3_pmu.c +++ b/drivers/perf/arm_smmuv3_pmu.c @@ -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, |