#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>
[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.
/* 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);
}
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;