Commit 7daaa063 authored Nov 07, 2020 by Hans de Goede Committed by Rafael J. Wysocki Nov 09, 2020

ACPI: button: Add DMI quirk for Medion Akoya E2228T

The Medion Akoya E2228T's ACPI _LID implementation is quite broken,
it has the same issues as the one from the Medion Akoya E2215T:

1. For notifications it uses an ActiveLow Edge GpioInt, rather then
an ActiveBoth one, meaning that the device is only notified when the
lid is closed, not when it is opened.

2. Matching with this its _LID method simply always returns 0 (closed)

In order for the Linux LID code to work properly with this implementation,
the lid_init_state selection needs to be set to ACPI_BUTTON_LID_INIT_OPEN,
add a DMI quirk for this.

While working on this I also found out that the MD60### part of the model
number differs per country/batch while all of the E2215T and E2228T models
have this issue, so also remove the " MD60198" part from the E2215T quirk.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent f8394f23

drivers/acpi/button.c

+12 −1

Original line number	Diff line number	Diff line
		@@ -89,7 +89,18 @@ static const struct dmi_system_id dmi_lid_quirks[] = {
		*/
		.matches = {
		DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
		DMI_MATCH(DMI_PRODUCT_NAME, "E2215T MD60198"),
		DMI_MATCH(DMI_PRODUCT_NAME, "E2215T"),
		},
		.driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_OPEN,
		},
		{
		/*
		* Medion Akoya E2228T, notification of the LID device only
		* happens on close, not on open and _LID always returns closed.
		*/
		.matches = {
		DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
		DMI_MATCH(DMI_PRODUCT_NAME, "E2228T"),
		},
		.driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_OPEN,
		},

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