From: Jiang Liu <jiang.liu@xxxxxxxxxx>
Use new helper functions to simplify acpiphp driver.
Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
Cc: Jiang Liu <liuj97@xxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Yinghai Lu <yinghai@xxxxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rjw@xxxxxxx>
Cc: Yijing Wang <wangyijing@xxxxxxxxxx>
Cc: linux-acpi@xxxxxxxxxxxxxxx
Cc: linux-pci@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
drivers/pci/hotplug/acpiphp_glue.c | 30 ++++++++----------------------
1 file changed, 8 insertions(+), 22 deletions(-)
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 59df857..a0a7133 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -201,7 +201,6 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
struct acpiphp_bridge *bridge = (struct acpiphp_bridge *)context;
struct acpiphp_slot *slot;
struct acpiphp_func *newfunc;
- acpi_handle tmp;
acpi_status status = AE_OK;
unsigned long long adr, sun;
int device, function, retval, found = 0;
@@ -232,19 +231,19 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
newfunc->handle = handle;
newfunc->function = function;
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp)))
+ if (acpi_has_method(handle, "_EJ0"))
newfunc->flags = FUNC_HAS_EJ0;
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_STA", &tmp)))
+ if (acpi_has_method(handle, "_STA"))
newfunc->flags |= FUNC_HAS_STA;
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_PS0", &tmp)))
+ if (acpi_has_method(handle, "_PS0"))
newfunc->flags |= FUNC_HAS_PS0;
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_PS3", &tmp)))
+ if (acpi_has_method(handle, "_PS3"))
newfunc->flags |= FUNC_HAS_PS3;
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_DCK", &tmp)))
+ if (acpi_has_method(handle, "_DCK"))
newfunc->flags |= FUNC_HAS_DCK;
status = acpi_evaluate_integer(handle, "_SUN", NULL, &sun);
@@ -843,25 +842,14 @@ static unsigned int get_slot_status(struct acpiphp_slot *slot)
*/
int acpiphp_eject_slot(struct acpiphp_slot *slot)
{
- acpi_status status;
struct acpiphp_func *func;
- struct acpi_object_list arg_list;
- union acpi_object arg;
list_for_each_entry(func, &slot->funcs, sibling) {
/* We don't want to call _EJ0 on non-existing functions. */
if ((func->flags & FUNC_HAS_EJ0)) {
- /* _EJ0 method take one argument */
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = 1;
-
- status = acpi_evaluate_object(func->handle, "_EJ0", &arg_list, NULL);
- if (ACPI_FAILURE(status)) {
- warn("%s: _EJ0 failed\n", __func__);
+ if (ACPI_FAILURE(acpi_evaluate_ej0(func->handle)))
return -1;
- } else
+ else
break;
}
}
@@ -1171,7 +1159,6 @@ static void handle_hotplug_event_func(acpi_handle handle, u32 type,
*/
void acpiphp_enumerate_slots(struct pci_bus *bus, acpi_handle handle)
{
- acpi_handle dummy_handle;
struct acpiphp_bridge *bridge;
if (acpiphp_disabled)
@@ -1200,8 +1187,7 @@ void acpiphp_enumerate_slots(struct pci_bus *bus, acpi_handle handle)
get_device(&bus->dev);
if (!pci_is_root_bus(bridge->pci_bus) &&
- ACPI_SUCCESS(acpi_get_handle(bridge->handle,
- "_EJ0", &dummy_handle))) {
+ acpi_has_method(bridge->handle, "_EJ0")) {
dbg("found ejectable p2p bridge\n");
bridge->flags |= BRIDGE_HAS_EJ0;
bridge->func = acpiphp_bridge_handle_to_function(handle);
--
1.8.1.2
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