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ACPI: Change acpi_device_always_present() into acpi_device_override_status()

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[ Upstream commit 1a68b346a2c9969c05e80a3b99a9ab160b5655c0 ]

Currently, acpi_bus_get_status() calls acpi_device_always_present() to
allow platform quirks to override the _STA return to report that a
device is present (status = ACPI_STA_DEFAULT) independent of the _STA
return.

In some cases it might also be useful to have the opposite functionality
and have a platform quirk which marks a device as not present (status = 0)
to work around ACPI table bugs.

Change acpi_device_always_present() into a more generic
acpi_device_override_status() function to allow this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hans de Goede
2021-11-22 18:05:31 +01:00
committed by Greg Kroah-Hartman
parent b029625063
commit cda755506d
3 changed files with 42 additions and 31 deletions
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4
drivers/acpi/bus.c
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@@ -98,8 +98,8 @@ int acpi_bus_get_status(struct acpi_device *device)
acpi_status status;
unsigned long long sta;
if (acpi_device_always_present(device)) {
acpi_set_device_status(device, ACPI_STA_DEFAULT);
if (acpi_device_override_status(device, &sta)) {
acpi_set_device_status(device, sta);
return 0;
}