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authorHans de Goede <hdegoede@redhat.com>2022-10-25 15:12:23 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2022-10-26 14:44:13 +0300
commitfa153b7cddce795662d38f78a87612c166c0f692 (patch)
treec7ee66d046376f7f5804e8b0a58c6473d9bdae39 /drivers/acpi
parent247f34f7b80357943234f93f247a1ae6b6c3a740 (diff)
downloadlinux-fa153b7cddce795662d38f78a87612c166c0f692.tar.xz
ACPI: scan: Add LATT2021 to acpi_ignore_dep_ids[]
Some x86/ACPI laptops with MIPI cameras have a LATT2021 ACPI device in the _DEP dependency list of the ACPI devices for the camera-sensors (which have flags.honor_deps set). The _DDN for the LATT2021 device is "Lattice FW Update Client Driver", suggesting that this is used for firmware updates of something. There is no Linux driver for this and if Linux gets support for updates it will likely be in userspace through fwupd. For now add the LATT2021 HID to acpi_ignore_dep_ids[] so that acpi_dev_ready_for_enumeration() will return true once the other _DEP dependencies are met. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/scan.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 024cc373a197..b47e93a24a9a 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -789,6 +789,7 @@ static bool acpi_info_matches_ids(struct acpi_device_info *info,
static const char * const acpi_ignore_dep_ids[] = {
"PNP0D80", /* Windows-compatible System Power Management Controller */
"INT33BD", /* Intel Baytrail Mailbox Device */
+ "LATT2021", /* Lattice FW Update Client Driver */
NULL
};