Commit 3f7be435 authored by Jean-Philippe Brucker's avatar Jean-Philippe Brucker Committed by Will Deacon
Browse files

perf/smmuv3: Add devicetree support 



Add device-tree support to the SMMUv3 PMCG driver.

Signed-off-by: default avatarJay Chen <jkchen@linux.alibaba.com>
Signed-off-by: default avatarJean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: default avatarRobin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20211117144844.241072-3-jean-philippe@linaro.org


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 2704e759

drivers/perf/arm_smmuv3_pmu.c

+10 −1
Original line number Diff line number Diff line
@@ -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>
@@ -834,6 +835,7 @@ static int smmu_pmu_probe(struct platform_device *pdev) 
		return -EINVAL;

	}



	if (!dev->of_node)

		smmu_pmu_get_acpi_options(smmu_pmu);



	/* Pick one CPU to be the preferred one to use */
@@ -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,