Merge branch 'osc-bugfix' into release

[safe/jmp/linux-2.6] / drivers / acpi / sleep.c

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index a90afcc..79d33d9 100644 (file)
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -81,6 +81,23 @@ static int acpi_sleep_prepare(u32 acpi_state)
 #ifdef CONFIG_ACPI_SLEEP
 static u32 acpi_target_sleep_state = ACPI_STATE_S0;
 /*
+ * According to the ACPI specification the BIOS should make sure that ACPI is
+ * enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states.  Still,
+ * some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI
+ * on such systems during resume.  Unfortunately that doesn't help in
+ * particularly pathological cases in which SCI_EN has to be set directly on
+ * resume, although the specification states very clearly that this flag is
+ * owned by the hardware.  The set_sci_en_on_resume variable will be set in such
+ * cases.
+ */
+static bool set_sci_en_on_resume;
+
+void __init acpi_set_sci_en_on_resume(void)
+{
+       set_sci_en_on_resume = true;
+}
+
+/*
  * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the
  * user to request that behavior by using the 'acpi_old_suspend_ordering'
  * kernel command line option that causes the following variable to be set.
@@ -170,18 +187,6 @@ static void acpi_pm_end(void)
 #endif /* CONFIG_ACPI_SLEEP */
 
 #ifdef CONFIG_SUSPEND
-/*
- * According to the ACPI specification the BIOS should make sure that ACPI is
- * enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states.  Still,
- * some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI
- * on such systems during resume.  Unfortunately that doesn't help in
- * particularly pathological cases in which SCI_EN has to be set directly on
- * resume, although the specification states very clearly that this flag is
- * owned by the hardware.  The set_sci_en_on_resume variable will be set in such
- * cases.
- */
-static bool set_sci_en_on_resume;
-
 extern void do_suspend_lowlevel(void);
 
 static u32 acpi_suspend_states[] = {
@@ -413,6 +418,38 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
                },
        },
        {
+       .callback = init_set_sci_en_on_resume,
+       .ident = "Hewlett-Packard Pavilion dv4",
+       .matches = {
+               DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+               DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4"),
+               },
+       },
+       {
+       .callback = init_set_sci_en_on_resume,
+       .ident = "Hewlett-Packard Pavilion dv7",
+       .matches = {
+               DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+               DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv7"),
+               },
+       },
+       {
+       .callback = init_set_sci_en_on_resume,
+       .ident = "Hewlett-Packard Compaq Presario C700 Notebook PC",
+       .matches = {
+               DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+               DMI_MATCH(DMI_PRODUCT_NAME, "Compaq Presario C700 Notebook PC"),
+               },
+       },
+       {
+       .callback = init_set_sci_en_on_resume,
+       .ident = "Hewlett-Packard Compaq Presario CQ40 Notebook PC",
+       .matches = {
+               DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+               DMI_MATCH(DMI_PRODUCT_NAME, "Compaq Presario CQ40 Notebook PC"),
+               },
+       },
+       {
        .callback = init_old_suspend_ordering,
        .ident = "Panasonic CF51-2L",
        .matches = {