linux-kernel - [PATCH v3 5/7] perf/arm-dsu: refactor cpu id retrieval via new API of_cpu_phandle_to

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Message-ID: <20250512080715.82-6-alireza.sanaee@huawei.com>
Date: Mon, 12 May 2025 09:07:13 +0100
From: Alireza Sanaee <alireza.sanaee@...wei.com>
To: <devicetree@...r.kernel.org>
CC: <robh@...nel.org>, <alireza.sanaee@...wei.com>,
	<jonathan.cameron@...wei.com>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linuxarm@...wei.com>,
	<mark.rutland@....com>, <shameerali.kolothum.thodi@...wei.com>,
	<krzk@...nel.org>, <dianders@...omium.org>, <catalin.marinas@....com>,
	<suzuki.poulose@....com>, <mike.leach@...aro.org>, <james.clark@...aro.org>,
	<linux-perf-users@...r.kernel.org>, <coresight@...ts.linaro.org>,
	<gshan@...hat.com>, <ruanjinjie@...wei.com>, <saravanak@...gle.com>
Subject: [PATCH v3 5/7] perf/arm-dsu: refactor cpu id retrieval via new API of_cpu_phandle_to_id

Update arm-dsu to use the new API, where both "cpus" and "cpu"
properties are supported.

Signed-off-by: Alireza Sanaee <alireza.sanaee@...wei.com>
---
 drivers/perf/arm_dsu_pmu.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c
index cb4fb59fe04b..7ef204d39173 100644
--- a/drivers/perf/arm_dsu_pmu.c
+++ b/drivers/perf/arm_dsu_pmu.c
@@ -596,11 +596,9 @@ static int dsu_pmu_dt_get_cpus(struct device *dev, cpumask_t *mask)
 	n = of_count_phandle_with_args(dev->of_node, "cpus", NULL);
 	if (n <= 0)
 		return -ENODEV;
+
 	for (; i < n; i++) {
-		cpu_node = of_parse_phandle(dev->of_node, "cpus", i);
-		if (!cpu_node)
-			break;
-		cpu = of_cpu_node_to_id(cpu_node);
+		cpu = of_cpu_phandle_to_id(dev->of_node, &cpu_node, i);
 		of_node_put(cpu_node);
 		/*
 		 * We have to ignore the failures here and continue scanning
-- 
2.34.1