VServer 1.9.2 (patch-2.6.8.1-vs1.9.2.diff)

[linux-2.6.git] / drivers / acpi / sleep / main.c

diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index ac7a480..c7b17e7 100644 (file)
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -10,6 +10,7 @@
 
 #include <linux/delay.h>
 #include <linux/irq.h>
+#include <linux/dmi.h>
 #include <linux/device.h>
 #include <linux/suspend.h>
 #include <acpi/acpi_bus.h>
@@ -30,6 +31,8 @@ static u32 acpi_suspend_states[] = {
        [PM_SUSPEND_DISK]       = ACPI_STATE_S4,
 };
 
+static int init_8259A_after_S1;
+
 /**
  *     acpi_pm_prepare - Do preliminary suspend work.
  *     @state:         suspend state we're entering.
@@ -138,7 +141,7 @@ static int acpi_pm_finish(u32 state)
        /* reset firmware waking vector */
        acpi_set_firmware_waking_vector((acpi_physical_address) 0);
 
-       if (dmi_broken & BROKEN_INIT_AFTER_S1) {
+       if (init_8259A_after_S1) {
                printk("Broken toshiba laptop -> kicking interrupts\n");
                init_8259A(0);
        }
@@ -159,17 +162,39 @@ int acpi_suspend(u32 acpi_state)
        return -EINVAL;
 }
 
-
 static struct pm_ops acpi_pm_ops = {
        .prepare        = acpi_pm_prepare,
        .enter          = acpi_pm_enter,
        .finish         = acpi_pm_finish,
 };
 
+
+/*
+ * Toshiba fails to preserve interrupts over S1, reinitialization
+ * of 8259 is needed after S1 resume.
+ */
+static int __init init_ints_after_s1(struct dmi_system_id *d)
+{
+       printk(KERN_WARNING "%s with broken S1 detected.\n", d->ident);
+       init_8259A_after_S1 = 1;
+       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"), },
+       },
+       { },
+};
+
 static int __init acpi_sleep_init(void)
 {
        int                     i = 0;
 
+       dmi_check_system(acpisleep_dmi_table);
+
        if (acpi_disabled)
                return 0;