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-rw-r--r--drivers/acpi/sleep/main.c68
-rw-r--r--drivers/acpi/sleep/proc.c2
-rw-r--r--drivers/acpi/sleep/wakeup.c8
3 files changed, 68 insertions, 10 deletions
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index d13194a..80c0868 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -15,6 +15,7 @@
#include <linux/dmi.h>
#include <linux/device.h>
#include <linux/suspend.h>
+#include <linux/reboot.h>
#include <asm/io.h>
@@ -24,6 +25,36 @@
u8 sleep_states[ACPI_S_STATE_COUNT];
+static void acpi_sleep_tts_switch(u32 acpi_state)
+{
+ union acpi_object in_arg = { ACPI_TYPE_INTEGER };
+ struct acpi_object_list arg_list = { 1, &in_arg };
+ acpi_status status = AE_OK;
+
+ in_arg.integer.value = acpi_state;
+ status = acpi_evaluate_object(NULL, "\\_TTS", &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ /*
+ * OS can't evaluate the _TTS object correctly. Some warning
+ * message will be printed. But it won't break anything.
+ */
+ printk(KERN_NOTICE "Failure in evaluating _TTS object\n");
+ }
+}
+
+static int tts_notify_reboot(struct notifier_block *this,
+ unsigned long code, void *x)
+{
+ acpi_sleep_tts_switch(ACPI_STATE_S5);
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block tts_notifier = {
+ .notifier_call = tts_notify_reboot,
+ .next = NULL,
+ .priority = 0,
+};
+
static int acpi_sleep_prepare(u32 acpi_state)
{
#ifdef CONFIG_ACPI_SLEEP
@@ -45,9 +76,8 @@ static int acpi_sleep_prepare(u32 acpi_state)
return 0;
}
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_ACPI_SLEEP
static u32 acpi_target_sleep_state = ACPI_STATE_S0;
-
/*
* 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'
@@ -131,8 +161,11 @@ static void acpi_pm_end(void)
* failing transition to a sleep state.
*/
acpi_target_sleep_state = ACPI_STATE_S0;
+ acpi_sleep_tts_switch(acpi_target_sleep_state);
}
-#endif /* CONFIG_PM_SLEEP */
+#else /* !CONFIG_ACPI_SLEEP */
+#define acpi_target_sleep_state ACPI_STATE_S0
+#endif /* CONFIG_ACPI_SLEEP */
#ifdef CONFIG_SUSPEND
extern void do_suspend_lowlevel(void);
@@ -155,6 +188,7 @@ static int acpi_suspend_begin(suspend_state_t pm_state)
if (sleep_states[acpi_state]) {
acpi_target_sleep_state = acpi_state;
+ acpi_sleep_tts_switch(acpi_target_sleep_state);
} else {
printk(KERN_ERR "ACPI does not support this state: %d\n",
pm_state);
@@ -200,6 +234,8 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
break;
}
+ /* If ACPI is not enabled by the BIOS, we need to enable it here. */
+ acpi_enable();
/* Reprogram control registers and execute _BFS */
acpi_leave_sleep_state_prep(acpi_state);
@@ -296,6 +332,14 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
DMI_MATCH(DMI_BOARD_NAME, "KN9 Series(NF-CK804)"),
},
},
+ {
+ .callback = init_old_suspend_ordering,
+ .ident = "HP xw4600 Workstation",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP xw4600 Workstation"),
+ },
+ },
{},
};
#endif /* CONFIG_SUSPEND */
@@ -313,6 +357,7 @@ void __init acpi_no_s4_hw_signature(void)
static int acpi_hibernation_begin(void)
{
acpi_target_sleep_state = ACPI_STATE_S4;
+ acpi_sleep_tts_switch(acpi_target_sleep_state);
return 0;
}
@@ -376,7 +421,15 @@ static struct platform_hibernation_ops acpi_hibernation_ops = {
*/
static int acpi_hibernation_begin_old(void)
{
- int error = acpi_sleep_prepare(ACPI_STATE_S4);
+ int error;
+ /*
+ * The _TTS object should always be evaluated before the _PTS object.
+ * When the old_suspended_ordering is true, the _PTS object is
+ * evaluated in the acpi_sleep_prepare.
+ */
+ acpi_sleep_tts_switch(ACPI_STATE_S4);
+
+ error = acpi_sleep_prepare(ACPI_STATE_S4);
if (!error)
acpi_target_sleep_state = ACPI_STATE_S4;
@@ -444,7 +497,7 @@ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p)
acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
struct acpi_device *adev;
char acpi_method[] = "_SxD";
- unsigned long d_min, d_max;
+ unsigned long long d_min, d_max;
if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) {
printk(KERN_DEBUG "ACPI handle has no context!\n");
@@ -596,5 +649,10 @@ int __init acpi_sleep_init(void)
pm_power_off = acpi_power_off;
}
printk(")\n");
+ /*
+ * Register the tts_notifier to reboot notifier list so that the _TTS
+ * object can also be evaluated when the system enters S5.
+ */
+ register_reboot_notifier(&tts_notifier);
return 0;
}
diff --git a/drivers/acpi/sleep/proc.c b/drivers/acpi/sleep/proc.c
index 631ee2e..4dbc227 100644
--- a/drivers/acpi/sleep/proc.c
+++ b/drivers/acpi/sleep/proc.c
@@ -367,7 +367,7 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
if (ldev)
seq_printf(seq, "%s:%s",
ldev->bus ? ldev->bus->name : "no-bus",
- ldev->bus_id);
+ dev_name(ldev));
seq_printf(seq, "\n");
put_device(ldev);
diff --git a/drivers/acpi/sleep/wakeup.c b/drivers/acpi/sleep/wakeup.c
index 38655eb..dea4c23 100644
--- a/drivers/acpi/sleep/wakeup.c
+++ b/drivers/acpi/sleep/wakeup.c
@@ -88,7 +88,7 @@ void acpi_enable_wakeup_device(u8 sleep_state)
spin_unlock(&acpi_device_lock);
if (!dev->wakeup.flags.run_wake)
acpi_enable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number, ACPI_ISR);
+ dev->wakeup.gpe_number);
spin_lock(&acpi_device_lock);
}
spin_unlock(&acpi_device_lock);
@@ -122,7 +122,7 @@ void acpi_disable_wakeup_device(u8 sleep_state)
ACPI_GPE_TYPE_WAKE_RUN);
/* Re-enable it, since set_gpe_type will disable it */
acpi_enable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number, ACPI_NOT_ISR);
+ dev->wakeup.gpe_number);
spin_lock(&acpi_device_lock);
}
continue;
@@ -133,7 +133,7 @@ void acpi_disable_wakeup_device(u8 sleep_state)
/* Never disable run-wake GPE */
if (!dev->wakeup.flags.run_wake) {
acpi_disable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number, ACPI_NOT_ISR);
+ dev->wakeup.gpe_number);
acpi_clear_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number, ACPI_NOT_ISR);
}
@@ -162,7 +162,7 @@ static int __init acpi_wakeup_device_init(void)
dev->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE_RUN);
acpi_enable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number, ACPI_NOT_ISR);
+ dev->wakeup.gpe_number);
dev->wakeup.state.enabled = 1;
spin_lock(&acpi_device_lock);
}
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