ACPI: button: Add DMI quirk for Lenovo Yoga 9 (14INTL5)
authorUlrich Huber <ulrich@huberulrich.de>
Tue, 24 Aug 2021 12:57:44 +0000 (14:57 +0200)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Wed, 25 Aug 2021 17:57:01 +0000 (19:57 +0200)
The Lenovo Yoga 9 (14INTL5)'s ACPI _LID is bugged:

After hibernation the lid is initially reported as closed.
Once closing and then reopening the lid reports the lid as
open again. This leads to the conclusion that the initial
notification of the lid is missing but subsequent
notifications are correct.

In order fo the Linux LID code to handle this device properly
the lid_init_state must be set to ACPI_BUTTON_LID_INIT_OPEN.

Signed-off-by: Ulrich Huber <ulrich@huberulrich.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/acpi/button.c

index f25bd336113bd6f3676cd9f2be849cbd15821316..1f9b9a4c38c7d2fa4734a27c883b303e20700db0 100644 (file)
@@ -77,6 +77,17 @@ static const struct dmi_system_id dmi_lid_quirks[] = {
                },
                .driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_DISABLED,
        },
+       {
+               /*
+                * Lenovo Yoga 9 14ITL5, initial notification of the LID device
+                * never happens.
+                */
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "82BG"),
+               },
+               .driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_OPEN,
+       },
        {
                /*
                 * Medion Akoya E2215T, notification of the LID device only