From: Carlos Corbacho <carlos@strangeworlds.co.uk>
Date: Thu, 24 Jul 2008 04:28:43 +0000 (-0700)
Subject: pm: acpi pm: add DMI quirk list for ACPI 1.0 suspend ordering
X-Git-Tag: v2.6.27-rc1~729
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=e41fb7c58e3ca18ec5c9c9bb7bb68e8e653c9e8e;p=linux-2.6-omap-h63xx.git

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: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Len Brown <lenb@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 313507accf1..d13194a031b 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -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)