[PATCH v3 6/8] perf: qcom_l2_pmu: Refactor _UID handling to use acpi_dev_uid_to_integer()

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Hans de Goede <hdegoede@redhat.com>,
	Ard Biesheuvel <ardb@kernel.org>,
	Wolfram Sang <wsa+renesas@sang-engineering.com>,
	Mark Brown <broonie@kernel.org>,
	linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-efi@vger.kernel.org, linux-i2c@vger.kernel.org,
	linux-arm-msm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-spi@vger.kernel.org,
	devel@acpica.org
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
	Len Brown <lenb@kernel.org>, Elie Morisse <syniurge@gmail.com>,
	Nehal Shah <nehal-bakulchandra.shah@amd.com>,
	Shyam Sundar S K <shyam-sundar.s-k@amd.com>,
	Khalil Blaiech <kblaiech@nvidia.com>,
	Andy Gross <agross@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konrad.dybcio@somainline.org>,
	Will Deacon <will@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Daniel Mack <daniel@zonque.org>,
	Haojian Zhuang <haojian.zhuang@gmail.com>,
	Robert Jarzmik <robert.jarzmik@free.fr>,
	Robert Moore <robert.moore@intel.com>
Subject: [PATCH v3 6/8] perf: qcom_l2_pmu: Refactor _UID handling to use acpi_dev_uid_to_integer()
Date: Tue, 13 Sep 2022 19:31:45 +0300	[thread overview]
Message-ID: <20220913163147.24258-7-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20220913163147.24258-1-andriy.shevchenko@linux.intel.com>

ACPI utils provide acpi_dev_uid_to_integer() helper to extract _UID as
an integer. Use it instead of custom approach.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/perf/qcom_l2_pmu.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/perf/qcom_l2_pmu.c b/drivers/perf/qcom_l2_pmu.c
index 30234c261b05..aaca6db7d8f6 100644
--- a/drivers/perf/qcom_l2_pmu.c
+++ b/drivers/perf/qcom_l2_pmu.c
@@ -840,16 +840,16 @@ static int l2_cache_pmu_probe_cluster(struct device *dev, void *data)
 {
 	struct platform_device *pdev = to_platform_device(dev->parent);
 	struct platform_device *sdev = to_platform_device(dev);
-	struct acpi_device *adev = ACPI_COMPANION(dev);
 	struct l2cache_pmu *l2cache_pmu = data;
 	struct cluster_pmu *cluster;
-	unsigned long fw_cluster_id;
+	u64 fw_cluster_id;
 	int err;
 	int irq;
 
-	if (!adev || kstrtoul(adev->pnp.unique_id, 10, &fw_cluster_id) < 0) {
+	err = acpi_dev_uid_to_integer(ACPI_COMPANION(dev), &fw_cluster_id);
+	if (err) {
 		dev_err(&pdev->dev, "unable to read ACPI uid\n");
-		return -ENODEV;
+		return err;
 	}
 
 	cluster = devm_kzalloc(&pdev->dev, sizeof(*cluster), GFP_KERNEL);
@@ -879,7 +879,7 @@ static int l2_cache_pmu_probe_cluster(struct device *dev, void *data)
 	}
 
 	dev_info(&pdev->dev,
-		"Registered L2 cache PMU cluster %ld\n", fw_cluster_id);
+		 "Registered L2 cache PMU cluster %lld\n", fw_cluster_id);
 
 	spin_lock_init(&cluster->pmu_lock);
 
-- 
2.35.1


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