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authorZhao Yakui <yakui.zhao@intel.com>2008-08-11 14:59:59 +0800
committerLen Brown <len.brown@intel.com>2008-10-22 18:00:13 -0400
commit6415e12ba0f92a54f02d9c4ecaa3c82f35f3d335 (patch)
treeadd3587c390f4afce6c1f2c3e7e95f5117fd7432 /drivers/acpi
parentf5adfaa372c76423b6e8e4727a9701330374f364 (diff)
ACPI: Add DMI check to disable power state check in power transition
Add the DMI check to disable power check in the course of device power transistion. http://bugzilla.kernel.org/show_bug.cgi?id=11000 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Li Shaohua <shaohua.li@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/bus.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 91bdeb3b081..945cd2f2807 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -48,6 +48,23 @@ EXPORT_SYMBOL(acpi_root_dir);
#define STRUCT_TO_INT(s) (*((int*)&s))
+static int set_power_nocheck(const struct dmi_system_id *id)
+{
+ printk(KERN_NOTICE PREFIX "%s detected - "
+ "disable power check in power transistion\n", id->ident);
+ acpi_power_nocheck = 1;
+ return 0;
+}
+static struct dmi_system_id __cpuinitdata power_nocheck_dmi_table[] = {
+ {
+ set_power_nocheck, "HP Pavilion 05", {
+ DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+ DMI_MATCH(DMI_SYS_VENDOR, "HP Pavilion 05"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "2001211RE101GLEND") }, NULL},
+ {},
+};
+
+
/* --------------------------------------------------------------------------
Device Management
-------------------------------------------------------------------------- */
@@ -830,7 +847,11 @@ static int __init acpi_init(void)
}
} else
disable_acpi();
-
+ /*
+ * If the laptop falls into the DMI check table, the power state check
+ * will be disabled in the course of device power transistion.
+ */
+ dmi_check_system(power_nocheck_dmi_table);
return result;
}