[PATCH] Force acpi_new_pts_ordering for ASUS A6VC laptop

Shaohua Li
2008-03-25T08:51:05Z

On Asus A6VC laptop, PCI config space read of slot 01:01.* after ACPI
_PTS is exectued always returns 0xFFFFFFFF. Force _PTS is executed
after suspending devices

Signed-off-by: Shaohua Li <shaohua.li@intel.com>

diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index d2f71a5..ebc20a5 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -272,12 +272,32 @@ static int __init init_ints_after_s1(const struct dmi_system_id *d)
return 0;
}

+/*
+ * On Asus A6VC laptop, PCI config space read of slot 01:01.* after ACPI _PTS
+ * is exectued always returns 0xFFFFFFFF. Force _PTS is executed after
+ * suspending devices
+ */
+static int __init asus_suspend_order(const struct dmi_system_id *d)
+{
+ printk(KERN_WARNING PREFIX "%s detected, "
+ "acpi_new_pts_ordering is force enabled\n", d->ident);
+ new_pts_ordering = true;
+ return 0;
+}
+
static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
{
.callback = init_ints_after_s1,
.ident = "Toshiba Satellite 4030cdt",
.matches = {DMI_MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),},
},
+ {
+ .callback = asus_suspend_order,
+ .ident = "Asus A6VC",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "A6VC"),},
+ },
{},
};
#endif /* CONFIG_SUSPEND */