Commit e41fb7c5 authored by Carlos Corbacho's avatar Carlos Corbacho Committed by Linus Torvalds
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pm: acpi pm: add DMI quirk list for ACPI 1.0 suspend ordering



There are a few BIOSes that we know of already that need to use the ACPI 1.0
suspend order.  This appears to be only be a small minority of mostly nVidia
based systems.

Based on observation of Windows behaviour, it's clear that Windows is also
doing maintaining its own list of broken hardware that needs this workaround.

Signed-off-by: default avatarCarlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Len Brown <lenb@kernel.org>
Acked-by: default avatarPavel Machek <pavel@ucw.cz>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent bdfe6b7c
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+20 −0
Original line number Diff line number Diff line
@@ -280,6 +280,24 @@ static struct platform_suspend_ops acpi_suspend_ops_old = {
	.end = acpi_pm_end,
	.recover = acpi_pm_finish,
};

static int __init init_old_suspend_ordering(const struct dmi_system_id *d)
{
	old_suspend_ordering = true;
	return 0;
}

static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
	{
	.callback = init_old_suspend_ordering,
	.ident = "Abit KN9 (nForce4 variant)",
	.matches = {
		DMI_MATCH(DMI_BOARD_VENDOR, "http://www.abit.com.tw/"),
		DMI_MATCH(DMI_BOARD_NAME, "KN9 Series(NF-CK804)"),
		},
	},
	{},
};
#endif /* CONFIG_SUSPEND */

#ifdef CONFIG_HIBERNATION
@@ -531,6 +549,8 @@ int __init acpi_sleep_init(void)
	u8 type_a, type_b;
#ifdef CONFIG_SUSPEND
	int i = 0;

	dmi_check_system(acpisleep_dmi_table);
#endif

	if (acpi_disabled)