ACPI / Fan: Use bus id as the name for non PNP0C0B (Fan) devices (bbb16fef) · Commits · 戴 / test

The _ART (Active Cooling Relationship Table), specifies relationship among heat generating sources to a target active cooling device like fan. The _ART table refers to actual bus id name for specifying relationship. Naming "Fan" is not enough as name in the _ART table can change on every platform, to establish relationship for user space thermal controllers. Signed-off-by:

Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by:

Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/fan.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -325,6 +325,7 @@ static int acpi_fan_probe(struct platform_device *pdev)
		struct thermal_cooling_device *cdev;
		struct acpi_fan *fan;
		struct acpi_device *device = ACPI_COMPANION(&pdev->dev);
		char *name;

		fan = devm_kzalloc(&pdev->dev, sizeof(*fan), GFP_KERNEL);
		if (!fan) {
		@@ -346,7 +347,12 @@ static int acpi_fan_probe(struct platform_device *pdev)
		}
		}

		cdev = thermal_cooling_device_register("Fan", device,
		if (!strncmp(pdev->name, "PNP0C0B", strlen("PNP0C0B")))
		name = "Fan";
		else
		name = acpi_device_bid(device);

		cdev = thermal_cooling_device_register(name, device,
		&fan_cooling_ops);
		if (IS_ERR(cdev)) {
		result = PTR_ERR(cdev);

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