linux-kernel - [PATCH v5 4/4] perf: arm_spe: Enable ACPI/Platform automatic module loading

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Message-Id: <20190626213718.39423-5-jeremy.linton@arm.com>
Date:   Wed, 26 Jun 2019 16:37:18 -0500
From:   Jeremy Linton <jeremy.linton@....com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        catalin.marinas@....com, will.deacon@....com, rjw@...ysocki.net,
        lenb@...nel.org, mark.rutland@....com, lorenzo.pieralisi@....com,
        sudeep.holla@....com, Jeremy Linton <jeremy.linton@....com>,
        Hanjun Gou <gouhanjun@...wei.com>
Subject: [PATCH v5 4/4] perf: arm_spe: Enable ACPI/Platform automatic module loading

Lets add the MODULE_TABLE and platform id_table entries so that
the SPE driver can attach to the ACPI platform device created by
the core pmu code.

Tested-by: Hanjun Gou <gouhanjun@...wei.com>
Reviewed-by: Sudeep Holla <sudeep.holla@....com>
Signed-off-by: Jeremy Linton <jeremy.linton@....com>
---
 drivers/perf/arm_spe_pmu.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c
index 49b490925255..4e4984a55cd1 100644
--- a/drivers/perf/arm_spe_pmu.c
+++ b/drivers/perf/arm_spe_pmu.c
@@ -27,6 +27,7 @@
 #include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/perf_event.h>
+#include <linux/perf/arm_pmu.h>
 #include <linux/platform_device.h>
 #include <linux/printk.h>
 #include <linux/slab.h>
@@ -1157,7 +1158,13 @@ static const struct of_device_id arm_spe_pmu_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, arm_spe_pmu_of_match);
 
-static int arm_spe_pmu_device_dt_probe(struct platform_device *pdev)
+static const struct platform_device_id arm_spe_match[] = {
+	{ ARMV8_SPE_PDEV_NAME, 0},
+	{ }
+};
+MODULE_DEVICE_TABLE(platform, arm_spe_match);
+
+static int arm_spe_pmu_device_probe(struct platform_device *pdev)
 {
 	int ret;
 	struct arm_spe_pmu *spe_pmu;
@@ -1217,11 +1224,12 @@ static int arm_spe_pmu_device_remove(struct platform_device *pdev)
 }
 
 static struct platform_driver arm_spe_pmu_driver = {
+	.id_table = arm_spe_match,
 	.driver	= {
 		.name		= DRVNAME,
 		.of_match_table	= of_match_ptr(arm_spe_pmu_of_match),
 	},
-	.probe	= arm_spe_pmu_device_dt_probe,
+	.probe	= arm_spe_pmu_device_probe,
 	.remove	= arm_spe_pmu_device_remove,
 };
 
-- 
2.21.0