From 17f8b216e02654a0b37127736ce78b32ccaa867b Mon Sep 17 00:00:00 2001
From: Anshuman Khandual <anshuman.khandual@arm.com>
Date: Tue, 29 Aug 2023 19:24:05 +0530
Subject: [PATCH] coresight: trbe: Enable ACPI based TRBE devices
This detects and enables ACPI based TRBE devices via the dummy platform
device created earlier for this purpose.
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230829135405.1159449-3-anshuman.khandual@arm.com
---
drivers/hwtracing/coresight/coresight-trbe.c | 9 +++++++++
drivers/hwtracing/coresight/coresight-trbe.h | 2 ++
2 files changed, 11 insertions(+)
diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c
index 97b9e72965e66..a3954be7b1f3b 100644
--- a/drivers/hwtracing/coresight/coresight-trbe.c
+++ b/drivers/hwtracing/coresight/coresight-trbe.c
@@ -1546,7 +1546,16 @@ static const struct of_device_id arm_trbe_of_match[] = {
};
MODULE_DEVICE_TABLE(of, arm_trbe_of_match);
+#ifdef CONFIG_ACPI
+static const struct platform_device_id arm_trbe_acpi_match[] = {
+ { ARMV8_TRBE_PDEV_NAME, 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, arm_trbe_acpi_match);
+#endif
+
static struct platform_driver arm_trbe_driver = {
+ .id_table = ACPI_PTR(arm_trbe_acpi_match),
.driver = {
.name = DRVNAME,
.of_match_table = of_match_ptr(arm_trbe_of_match),
diff --git a/drivers/hwtracing/coresight/coresight-trbe.h b/drivers/hwtracing/coresight/coresight-trbe.h
index e915e749be551..45202c48accec 100644
--- a/drivers/hwtracing/coresight/coresight-trbe.h
+++ b/drivers/hwtracing/coresight/coresight-trbe.h
@@ -7,11 +7,13 @@
*
* Author: Anshuman Khandual <anshuman.khandual@arm.com>
*/
+#include <linux/acpi.h>
#include <linux/coresight.h>
#include <linux/device.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/of.h>
+#include <linux/perf/arm_pmu.h>
#include <linux/platform_device.h>
#include <linux/smp.h>
--
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