From 3f7be43561766b7ad91661580376913c997613d6 Mon Sep 17 00:00:00 2001 From: Jean-Philippe Brucker Date: Wed, 17 Nov 2021 14:48:44 +0000 Subject: [PATCH] perf/smmuv3: Add devicetree support Add device-tree support to the SMMUv3 PMCG driver. Signed-off-by: Jay Chen Signed-off-by: Jean-Philippe Brucker Signed-off-by: Robin Murphy Link: https://lore.kernel.org/r/20211117144844.241072-3-jean-philippe@linaro.org Signed-off-by: Will Deacon --- drivers/perf/arm_smmuv3_pmu.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) 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 #include #include +#include #include #include #include @@ -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, -- 2.11.0