diff options
Diffstat (limited to 'drivers/tty/serdev/core.c')
| -rw-r--r-- | drivers/tty/serdev/core.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c index f1324fe99378..92e3433276f8 100644 --- a/drivers/tty/serdev/core.c +++ b/drivers/tty/serdev/core.c @@ -727,10 +727,24 @@ static acpi_status acpi_serdev_add_device(acpi_handle handle, u32 level, static int acpi_serdev_register_devices(struct serdev_controller *ctrl) { acpi_status status; + bool skip; + int ret; if (!has_acpi_companion(ctrl->dev.parent)) return -ENODEV; + /* + * Skip registration on boards where the ACPI tables are known to + * contain buggy devices. Note serdev_controller_add() must still + * succeed in this case, so that the proper serdev devices can be + * added "manually" later. + */ + ret = acpi_quirk_skip_serdev_enumeration(ctrl->dev.parent, &skip); + if (ret) + return ret; + if (skip) + return 0; + status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, SERDEV_ACPI_MAX_SCAN_DEPTH, acpi_serdev_add_device, NULL, ctrl, NULL); |