| Message ID | 20201215112602.5314-1-hdegoede@redhat.com |
|---|---|
| State | Accepted |
| Commit | 9272e97ae9e9b95e0805c690404a0df9fb03055f |
| Headers | show |
| Series | ACPI: scan: Add Intel Baytrail Mailbox Device to acpi_ignore_dep_ids | expand |
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 28713741d6ee..05814d188c7d 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -752,6 +752,7 @@ static bool acpi_info_matches_ids(struct acpi_device_info *info, /* List of HIDs for which we ignore matching ACPI devices, when checking _DEP lists. */ static const char * const acpi_ignore_dep_ids[] = { "PNP0D80", /* Windows-compatible System Power Management Controller */ + "INT33BD", /* Intel Baytrail Mailbox Device */ NULL };
Linux does not have a driver for / does not use the "Intel Baytrail Mailbox Device" (ACIP HID INT33BD). Add it to the acpi_ignore_dep_ids list, so that we do not defer probing ACPI devices which depend on another ACPI device with this HID. Specifically this makes us not defer the probing of the GPO1 ACPI device / GPIO controller on the Acer Switch 10E SW3-016. On this tablet model the _HID method of the ACPI node for the UART attached Bluetooth, reads GPIOs to detect the installed wifi chip and updates the reported _HID for the Bluetooth's ACPI node accordingly. For the Bluetooth's ACPI node to report the correct _HID the GPO1 device must be probed and attached during the first scan pass. Adding the "INT33BD" HID to the acpi_ignore_dep_ids list makes this all work. Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- drivers/acpi/scan.c | 1 + 1 file changed, 1 insertion(+)