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authorCarlos Corbacho <carlos@strangeworlds.co.uk>2008-07-23 21:28:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-24 10:47:24 -0700
commite41fb7c58e3ca18ec5c9c9bb7bb68e8e653c9e8e (patch)
tree1daf9dce15c3f72b06d0bddf35a6b52e83381eaf /drivers
parentbdfe6b7c681669148dae4db27eb24ee5408ba371 (diff)
downloadlwn-e41fb7c58e3ca18ec5c9c9bb7bb68e8e653c9e8e.tar.gz
lwn-e41fb7c58e3ca18ec5c9c9bb7bb68e8e653c9e8e.zip
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/acpi/sleep/main.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 313507accf18..d13194a031bf 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)