Signed-off-by: Thomas Renninger <trenn@xxxxxxx>
---
drivers/acpi/blacklist.c | 21 +++++++++++++++++++++
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 09c6980..b64bdeb 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -183,6 +183,13 @@ static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
return 0;
}
+static int __init dmi_use_rsdt(const struct dmi_system_id *d)
+{
+ printk(KERN_NOTICE PREFIX "DMI detected: %s, using rsdt\n", d->ident);
+ acpi_rsdt_forced = 1;
+ return 0;
+}
+
static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
{
.callback = dmi_disable_osi_vista,
@@ -235,6 +242,20 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
},
},
+ {
+ .callback = dmi_use_rsdt,
+ .ident = "ThinkPad R40e family", /* R40e, broken C-states */
+ .matches = {
+ DMI_MATCH(DMI_BIOS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_BIOS_VERSION, "1SET")},
+ },
+ {
+ .callback = dmi_use_rsdt,
+ .ident = "ThinkPad R50e family", /* R50e, slow booting */
+ .matches = {
+ DMI_MATCH(DMI_BIOS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_BIOS_VERSION, "1WET")},
+ },
{}
};
--
1.6.0.2
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