linux-kernel - [PATCH v2 4/5] coresight: Use of_cpu_phandle_to

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Message-ID: <20250708151502.561-5-alireza.sanaee@huawei.com>
Date: Tue, 8 Jul 2025 16:15:01 +0100
From: Alireza Sanaee <alireza.sanaee@...wei.com>
To: <krzk@...nel.org>, <robh@...nel.org>
CC: <coresight@...ts.linaro.org>, <devicetree@...r.kernel.org>,
	<dianders@...omium.org>, <james.clark@...aro.org>,
	<jonathan.cameron@...wei.com>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-perf-users@...r.kernel.org>,
	<linuxarm@...wei.com>, <mark.rutland@....com>, <mike.leach@...aro.org>,
	<ruanjinjie@...wei.com>, <saravanak@...gle.com>,
	<shameerali.kolothum.thodi@...wei.com>
Subject: [PATCH v2 4/5] coresight: Use of_cpu_phandle_to_id for grabbing CPU id

Use the newly created API to grab CPU id.

Signed-off-by: Alireza Sanaee <alireza.sanaee@...wei.com>
---
 drivers/hwtracing/coresight/coresight-platform.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c
index 0db64c5f4995..95d46ea08936 100644
--- a/drivers/hwtracing/coresight/coresight-platform.c
+++ b/drivers/hwtracing/coresight/coresight-platform.c
@@ -167,20 +167,7 @@ of_coresight_get_output_ports_node(const struct device_node *node)
 
 static int of_coresight_get_cpu(struct device *dev)
 {
-	int cpu;
-	struct device_node *dn;
-
-	if (!dev->of_node)
-		return -ENODEV;
-
-	dn = of_parse_phandle(dev->of_node, "cpu", 0);
-	if (!dn)
-		return -ENODEV;
-
-	cpu = of_cpu_node_to_id(dn);
-	of_node_put(dn);
-
-	return cpu;
+	return of_cpu_phandle_to_id(dev->of_node, NULL, 0);
 }
 
 /*
-- 
2.43.0