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-rw-r--r--drivers/acpi/acpica/evgpeinit.c3
-rw-r--r--drivers/acpi/battery.c5
-rw-r--r--drivers/acpi/scan.c97
3 files changed, 63 insertions, 42 deletions
diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
index 2c7def95f721..4c8dea513b66 100644
--- a/drivers/acpi/acpica/evgpeinit.c
+++ b/drivers/acpi/acpica/evgpeinit.c
@@ -408,6 +408,9 @@ acpi_ev_match_gpe_method(acpi_handle obj_handle,
return_ACPI_STATUS(AE_OK);
}
+ /* Disable the GPE in case it's been enabled already. */
+ (void)acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE);
+
/*
* Add the GPE information from above to the gpe_event_info block for
* use during dispatch of this GPE.
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 9fb9d5ac939d..95649d373071 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -130,8 +130,6 @@ struct acpi_battery {
unsigned long flags;
};
-static int acpi_battery_update(struct acpi_battery *battery);
-
#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
inline int acpi_battery_present(struct acpi_battery *battery)
@@ -186,9 +184,6 @@ static int acpi_battery_get_property(struct power_supply *psy,
int ret = 0;
struct acpi_battery *battery = to_acpi_battery(psy);
- if (acpi_battery_update(battery))
- return -ENODEV;
-
if (acpi_battery_present(battery)) {
/* run battery update only if it is present */
acpi_battery_get_state(battery);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 2b6c21d86b98..29ef505c487b 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -705,54 +705,85 @@ static int acpi_bus_get_perf_flags(struct acpi_device *device)
}
static acpi_status
-acpi_bus_extract_wakeup_device_power_package(struct acpi_device *device,
- union acpi_object *package)
+acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
+ struct acpi_device_wakeup *wakeup)
{
- int i = 0;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *package = NULL;
union acpi_object *element = NULL;
+ acpi_status status;
+ int i = 0;
- if (!device || !package || (package->package.count < 2))
+ if (!wakeup)
return AE_BAD_PARAMETER;
+ /* _PRW */
+ status = acpi_evaluate_object(handle, "_PRW", NULL, &buffer);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRW"));
+ return status;
+ }
+
+ package = (union acpi_object *)buffer.pointer;
+
+ if (!package || (package->package.count < 2)) {
+ status = AE_BAD_DATA;
+ goto out;
+ }
+
element = &(package->package.elements[0]);
- if (!element)
- return AE_BAD_PARAMETER;
+ if (!element) {
+ status = AE_BAD_DATA;
+ goto out;
+ }
if (element->type == ACPI_TYPE_PACKAGE) {
if ((element->package.count < 2) ||
(element->package.elements[0].type !=
ACPI_TYPE_LOCAL_REFERENCE)
- || (element->package.elements[1].type != ACPI_TYPE_INTEGER))
- return AE_BAD_DATA;
- device->wakeup.gpe_device =
+ || (element->package.elements[1].type != ACPI_TYPE_INTEGER)) {
+ status = AE_BAD_DATA;
+ goto out;
+ }
+ wakeup->gpe_device =
element->package.elements[0].reference.handle;
- device->wakeup.gpe_number =
+ wakeup->gpe_number =
(u32) element->package.elements[1].integer.value;
} else if (element->type == ACPI_TYPE_INTEGER) {
- device->wakeup.gpe_number = element->integer.value;
- } else
- return AE_BAD_DATA;
+ wakeup->gpe_device = NULL;
+ wakeup->gpe_number = element->integer.value;
+ } else {
+ status = AE_BAD_DATA;
+ goto out;
+ }
element = &(package->package.elements[1]);
if (element->type != ACPI_TYPE_INTEGER) {
- return AE_BAD_DATA;
+ status = AE_BAD_DATA;
+ goto out;
}
- device->wakeup.sleep_state = element->integer.value;
+ wakeup->sleep_state = element->integer.value;
if ((package->package.count - 2) > ACPI_MAX_HANDLES) {
- return AE_NO_MEMORY;
+ status = AE_NO_MEMORY;
+ goto out;
}
- device->wakeup.resources.count = package->package.count - 2;
- for (i = 0; i < device->wakeup.resources.count; i++) {
+ wakeup->resources.count = package->package.count - 2;
+ for (i = 0; i < wakeup->resources.count; i++) {
element = &(package->package.elements[i + 2]);
- if (element->type != ACPI_TYPE_LOCAL_REFERENCE)
- return AE_BAD_DATA;
+ if (element->type != ACPI_TYPE_LOCAL_REFERENCE) {
+ status = AE_BAD_DATA;
+ goto out;
+ }
- device->wakeup.resources.handles[i] = element->reference.handle;
+ wakeup->resources.handles[i] = element->reference.handle;
}
- acpi_gpe_can_wake(device->wakeup.gpe_device, device->wakeup.gpe_number);
+ acpi_gpe_can_wake(wakeup->gpe_device, wakeup->gpe_number);
- return AE_OK;
+ out:
+ kfree(buffer.pointer);
+
+ return status;
}
static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
@@ -787,26 +818,15 @@ static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
{
acpi_status status = 0;
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *package = NULL;
int psw_error;
- /* _PRW */
- status = acpi_evaluate_object(device->handle, "_PRW", NULL, &buffer);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRW"));
- goto end;
- }
-
- package = (union acpi_object *)buffer.pointer;
- status = acpi_bus_extract_wakeup_device_power_package(device, package);
+ status = acpi_bus_extract_wakeup_device_power_package(device->handle,
+ &device->wakeup);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Extracting _PRW package"));
goto end;
}
- kfree(buffer.pointer);
-
device->wakeup.flags.valid = 1;
device->wakeup.prepare_count = 0;
acpi_bus_set_run_wake_flags(device);
@@ -1351,6 +1371,7 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
struct acpi_bus_ops *ops = context;
int type;
unsigned long long sta;
+ struct acpi_device_wakeup wakeup;
struct acpi_device *device;
acpi_status status;
int result;
@@ -1360,8 +1381,10 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
return AE_OK;
if (!(sta & ACPI_STA_DEVICE_PRESENT) &&
- !(sta & ACPI_STA_DEVICE_FUNCTIONING))
+ !(sta & ACPI_STA_DEVICE_FUNCTIONING)) {
+ acpi_bus_extract_wakeup_device_power_package(handle, &wakeup);
return AE_CTRL_DEPTH;
+ }
/*
* We may already have an acpi_device from a previous enumeration. If
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 15:06:08 +0000