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ACPI: PNP: Add Intel OC Watchdog IDs to non-PNP device list

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Intel Over-Clocking Watchdogs are described in ACPI tables by both the
generic PNP0C02 _CID and their ACPI _HID. The presence of the _CID then
causes the PNP scan handler to attach to the watchdog, preventing the
actual watchdog driver from binding. Address this by adding the ACPI
_HIDs to the list of non-PNP devices, so that the PNP scan handler is
bypassed.

Note that these watchdogs can be described by multiple _HIDs for what
seems to be identical hardware. This commit is not a complete list of
all the possible watchdog ACPI _HIDs.

Signed-off-by: Diogo Ivo <diogo.ivo@siemens.com>
Link: https://patch.msgid.link/20250317-ivo-intel_oc_wdt-v3-2-32c396f4eefd@siemens.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Diogo Ivo 2025-03-17 10:55:07 +00:00 committed by Rafael J. Wysocki
parent 21e0ff5b10
commit f06777cf2b
1 changed files with 2 additions and 0 deletions
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2
drivers/acpi/acpi_pnp.c
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@ -355,8 +355,10 @@ static bool acpi_pnp_match(const char *idstr, const struct acpi_device_id **matc
* device represented by it.
*/
static const struct acpi_device_id acpi_nonpnp_device_ids[] = {
{"INT3F0D"},
{"INTC1080"},
{"INTC1081"},
{"INTC1099"},
{""},
};