Merge branch 'nvs' into release

[pandora-kernel.git] / drivers / acpi / sleep.c

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 2862c78..e4625f9 100644 (file)
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -70,10 +70,10 @@ static int acpi_sleep_prepare(u32 acpi_state)
 
        }
        ACPI_FLUSH_CPU_CACHE();
-       acpi_enable_wakeup_device_prep(acpi_state);
 #endif
        printk(KERN_INFO PREFIX "Preparing to enter system sleep state S%d\n",
                acpi_state);
+       acpi_enable_wakeup_devices(acpi_state);
        acpi_enter_sleep_state_prep(acpi_state);
        return 0;
 }
@@ -118,6 +118,16 @@ static int acpi_pm_freeze(void)
        return 0;
 }
 
+/**
+ * acpi_pre_suspend - Enable wakeup devices, "freeze" EC and save NVS.
+ */
+static int acpi_pm_pre_suspend(void)
+{
+       acpi_pm_freeze();
+       suspend_nvs_save();
+       return 0;
+}
+
 /**
  *     __acpi_pm_prepare - Prepare the platform to enter the target state.
  *
@@ -127,11 +137,9 @@ static int acpi_pm_freeze(void)
 static int __acpi_pm_prepare(void)
 {
        int error = acpi_sleep_prepare(acpi_target_sleep_state);
-
-       suspend_nvs_save();
-
        if (error)
                acpi_target_sleep_state = ACPI_STATE_S0;
+
        return error;
 }
 
@@ -142,9 +150,8 @@ static int __acpi_pm_prepare(void)
 static int acpi_pm_prepare(void)
 {
        int error = __acpi_pm_prepare();
-
        if (!error)
-               acpi_pm_freeze();
+               acpi_pm_pre_suspend();
 
        return error;
 }
@@ -159,7 +166,6 @@ static void acpi_pm_finish(void)
 {
        u32 acpi_state = acpi_target_sleep_state;
 
-       suspend_nvs_free();
        acpi_ec_unblock_transactions();
 
        if (acpi_state == ACPI_STATE_S0)
@@ -167,7 +173,7 @@ static void acpi_pm_finish(void)
 
        printk(KERN_INFO PREFIX "Waking up from system sleep state S%d\n",
                acpi_state);
-       acpi_disable_wakeup_device(acpi_state);
+       acpi_disable_wakeup_devices(acpi_state);
        acpi_leave_sleep_state(acpi_state);
 
        /* reset firmware waking vector */
@@ -181,6 +187,7 @@ static void acpi_pm_finish(void)
  */
 static void acpi_pm_end(void)
 {
+       suspend_nvs_free();
        /*
         * This is necessary in case acpi_pm_finish() is not called during a
         * failing transition to a sleep state.
@@ -251,7 +258,6 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
        }
 
        local_irq_save(flags);
-       acpi_enable_wakeup_device(acpi_state);
        switch (acpi_state) {
        case ACPI_STATE_S1:
                barrier();
@@ -297,11 +303,6 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
        return ACPI_SUCCESS(status) ? 0 : -EFAULT;
 }
 
-static void acpi_suspend_finish(void)
-{
-       acpi_pm_finish();
-}
-
 static int acpi_suspend_state_valid(suspend_state_t pm_state)
 {
        u32 acpi_state;
@@ -323,7 +324,7 @@ static struct platform_suspend_ops acpi_suspend_ops = {
        .begin = acpi_suspend_begin,
        .prepare_late = acpi_pm_prepare,
        .enter = acpi_suspend_enter,
-       .wake = acpi_suspend_finish,
+       .wake = acpi_pm_finish,
        .end = acpi_pm_end,
 };
 
@@ -336,9 +337,9 @@ static struct platform_suspend_ops acpi_suspend_ops = {
 static int acpi_suspend_begin_old(suspend_state_t pm_state)
 {
        int error = acpi_suspend_begin(pm_state);
-
        if (!error)
                error = __acpi_pm_prepare();
+
        return error;
 }
 
@@ -349,9 +350,9 @@ static int acpi_suspend_begin_old(suspend_state_t pm_state)
 static struct platform_suspend_ops acpi_suspend_ops_old = {
        .valid = acpi_suspend_state_valid,
        .begin = acpi_suspend_begin_old,
-       .prepare_late = acpi_pm_freeze,
+       .prepare_late = acpi_pm_pre_suspend,
        .enter = acpi_suspend_enter,
-       .wake = acpi_suspend_finish,
+       .wake = acpi_pm_finish,
        .end = acpi_pm_end,
        .recover = acpi_pm_finish,
 };
@@ -423,16 +424,6 @@ static int acpi_hibernation_begin(void)
        return error;
 }
 
-static int acpi_hibernation_pre_snapshot(void)
-{
-       int error = acpi_pm_prepare();
-
-       if (!error)
-               suspend_nvs_save();
-
-       return error;
-}
-
 static int acpi_hibernation_enter(void)
 {
        acpi_status status = AE_OK;
@@ -441,7 +432,6 @@ static int acpi_hibernation_enter(void)
        ACPI_FLUSH_CPU_CACHE();
 
        local_irq_save(flags);
-       acpi_enable_wakeup_device(ACPI_STATE_S4);
        /* This shouldn't return.  If it returns, we have a problem */
        status = acpi_enter_sleep_state(ACPI_STATE_S4);
        /* Reprogram control registers and execute _BFS */
@@ -481,7 +471,7 @@ static void acpi_pm_thaw(void)
 static struct platform_hibernation_ops acpi_hibernation_ops = {
        .begin = acpi_hibernation_begin,
        .end = acpi_pm_end,
-       .pre_snapshot = acpi_hibernation_pre_snapshot,
+       .pre_snapshot = acpi_pm_prepare,
        .finish = acpi_pm_finish,
        .prepare = acpi_pm_prepare,
        .enter = acpi_hibernation_enter,
@@ -517,13 +507,6 @@ static int acpi_hibernation_begin_old(void)
        return error;
 }
 
-static int acpi_hibernation_pre_snapshot_old(void)
-{
-       acpi_pm_freeze();
-       suspend_nvs_save();
-       return 0;
-}
-
 /*
  * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has
  * been requested.
@@ -531,7 +514,7 @@ static int acpi_hibernation_pre_snapshot_old(void)
 static struct platform_hibernation_ops acpi_hibernation_ops_old = {
        .begin = acpi_hibernation_begin_old,
        .end = acpi_pm_end,
-       .pre_snapshot = acpi_hibernation_pre_snapshot_old,
+       .pre_snapshot = acpi_pm_pre_suspend,
        .prepare = acpi_pm_freeze,
        .finish = acpi_pm_finish,
        .enter = acpi_hibernation_enter,
@@ -695,7 +678,6 @@ static void acpi_power_off(void)
        /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
        printk(KERN_DEBUG "%s called\n", __func__);
        local_irq_disable();
-       acpi_enable_wakeup_device(ACPI_STATE_S5);
        acpi_enter_sleep_state(ACPI_STATE_S5);
 }