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path: root/drivers/acpi/sleep.c
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Diffstat (limited to 'drivers/acpi/sleep.c')
-rw-r--r--drivers/acpi/sleep.c35
1 files changed, 25 insertions, 10 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 721d93b3ceee..d6a8cd14de2e 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -27,8 +27,6 @@
static u8 sleep_states[ACPI_S_STATE_COUNT];
-static u32 acpi_target_sleep_state = ACPI_STATE_S0;
-
static void acpi_sleep_tts_switch(u32 acpi_state)
{
union acpi_object in_arg = { ACPI_TYPE_INTEGER };
@@ -81,6 +79,8 @@ static int acpi_sleep_prepare(u32 acpi_state)
}
#ifdef CONFIG_ACPI_SLEEP
+static u32 acpi_target_sleep_state = ACPI_STATE_S0;
+
/*
* The ACPI specification wants us to save NVS memory regions during hibernation
* and to restore them during the subsequent resume. Windows does that also for
@@ -124,8 +124,7 @@ static int acpi_pm_freeze(void)
static int acpi_pm_pre_suspend(void)
{
acpi_pm_freeze();
- suspend_nvs_save();
- return 0;
+ return suspend_nvs_save();
}
/**
@@ -151,7 +150,7 @@ static int acpi_pm_prepare(void)
{
int error = __acpi_pm_prepare();
if (!error)
- acpi_pm_pre_suspend();
+ error = acpi_pm_pre_suspend();
return error;
}
@@ -167,6 +166,7 @@ static void acpi_pm_finish(void)
u32 acpi_state = acpi_target_sleep_state;
acpi_ec_unblock_transactions();
+ suspend_nvs_free();
if (acpi_state == ACPI_STATE_S0)
return;
@@ -187,7 +187,6 @@ 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.
@@ -319,7 +318,7 @@ static int acpi_suspend_state_valid(suspend_state_t pm_state)
}
}
-static struct platform_suspend_ops acpi_suspend_ops = {
+static const struct platform_suspend_ops acpi_suspend_ops = {
.valid = acpi_suspend_state_valid,
.begin = acpi_suspend_begin,
.prepare_late = acpi_pm_prepare,
@@ -347,7 +346,7 @@ static int acpi_suspend_begin_old(suspend_state_t pm_state)
* The following callbacks are used if the pre-ACPI 2.0 suspend ordering has
* been requested.
*/
-static struct platform_suspend_ops acpi_suspend_ops_old = {
+static const struct platform_suspend_ops acpi_suspend_ops_old = {
.valid = acpi_suspend_state_valid,
.begin = acpi_suspend_begin_old,
.prepare_late = acpi_pm_pre_suspend,
@@ -427,6 +426,22 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "VPCEB1Z1E"),
},
},
+ {
+ .callback = init_nvs_nosave,
+ .ident = "Sony Vaio VGN-NW130D",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NW130D"),
+ },
+ },
+ {
+ .callback = init_nvs_nosave,
+ .ident = "Averatec AV1020-ED2",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "AVERATEC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "1000 Series"),
+ },
+ },
{},
};
#endif /* CONFIG_SUSPEND */
@@ -498,7 +513,7 @@ static void acpi_pm_thaw(void)
acpi_enable_all_runtime_gpes();
}
-static struct platform_hibernation_ops acpi_hibernation_ops = {
+static const struct platform_hibernation_ops acpi_hibernation_ops = {
.begin = acpi_hibernation_begin,
.end = acpi_pm_end,
.pre_snapshot = acpi_pm_prepare,
@@ -541,7 +556,7 @@ static int acpi_hibernation_begin_old(void)
* The following callbacks are used if the pre-ACPI 2.0 suspend ordering has
* been requested.
*/
-static struct platform_hibernation_ops acpi_hibernation_ops_old = {
+static const struct platform_hibernation_ops acpi_hibernation_ops_old = {
.begin = acpi_hibernation_begin_old,
.end = acpi_pm_end,
.pre_snapshot = acpi_pm_pre_suspend,