Commit 00e25036 authored Oct 26, 2019 by Hans de Goede Committed by Rafael J. Wysocki Oct 28, 2019

ACPI: button: Add DMI quirk for Asus T200TA

The Asus T200TA lid has some weird behavior where _LID keeps reporting
closed after every second openening of the lid. Causing immediate
re-suspend after opening every other open.

I've looked at the AML code but it involves talking to the EC and we
have no idea what the EC is doing. Setting lid_init_state to
ACPI_BUTTON_LID_INIT_OPEN fixes the unwanted behavior, so this commit
adds a DMI based quirk to use ACPI_BUTTON_LID_INIT_OPEN on the T200TA.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 932e1ba4

drivers/acpi/button.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -77,6 +77,18 @@ MODULE_DEVICE_TABLE(acpi, button_device_ids);

		/* Please keep this list sorted alphabetically by vendor and model */
		static const struct dmi_system_id dmi_lid_quirks[] = {
		{
		/*
		* Asus T200TA, _LID keeps reporting closed after every second
		* openening of the lid. Causing immediate re-suspend after
		* opening every other open. Using LID_INIT_OPEN fixes this.
		*/
		.matches = {
		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
		DMI_MATCH(DMI_PRODUCT_NAME, "T200TA"),
		},
		.driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_OPEN,
		},
		{
		/* GP-electronic T701, _LID method points to a floating GPIO */
		.matches = {

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