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OpenCloudOS-Kernel
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Merge branches 'acpi-tables' and 'acpi-general' 

* acpi-tables:
  ACPI: Fix conflict between customized DSDT and DSDT local copy

* acpi-general:
  ACPI: Add acpi_bus_attach_private_data() to attach data to ACPI handle
This commit is contained in:
Rafael J. Wysocki 2014-06-03 23:10:06 +02:00
parent 26f8784e2d 73577d1df8 72013795a7
commit 91ab377ba3
2 changed files with 33 additions and 4 deletions
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35
drivers/acpi/bus.c
View File

@ -52,6 +52,12 @@ struct proc_dir_entry *acpi_root_dir;
EXPORT_SYMBOL(acpi_root_dir);
#ifdef CONFIG_X86
#ifdef CONFIG_ACPI_CUSTOM_DSDT
static inline int set_copy_dsdt(const struct dmi_system_id *id)
{
return 0;
}
#else
static int set_copy_dsdt(const struct dmi_system_id *id)
{
printk(KERN_NOTICE "%s detected - "
@ -59,6 +65,7 @@ static int set_copy_dsdt(const struct dmi_system_id *id)
acpi_gbl_copy_dsdt_locally = 1;
return 0;
}
#endif
static struct dmi_system_id dsdt_dmi_table[] __initdata = {
/*
@ -132,6 +139,21 @@ void acpi_bus_private_data_handler(acpi_handle handle,
}
EXPORT_SYMBOL(acpi_bus_private_data_handler);
int acpi_bus_attach_private_data(acpi_handle handle, void *data)
{
acpi_status status;
status = acpi_attach_data(handle,
acpi_bus_private_data_handler, data);
if (ACPI_FAILURE(status)) {
acpi_handle_debug(handle, "Error attaching device data\n");
return -ENODEV;
}
return 0;
}
EXPORT_SYMBOL_GPL(acpi_bus_attach_private_data);
int acpi_bus_get_private_data(acpi_handle handle, void **data)
{
acpi_status status;
@ -140,15 +162,20 @@ int acpi_bus_get_private_data(acpi_handle handle, void **data)
return -EINVAL;
status = acpi_get_data(handle, acpi_bus_private_data_handler, data);
if (ACPI_FAILURE(status) || !*data) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n",
handle));
if (ACPI_FAILURE(status)) {
acpi_handle_debug(handle, "No context for object\n");
return -ENODEV;
}
return 0;
}
EXPORT_SYMBOL(acpi_bus_get_private_data);
EXPORT_SYMBOL_GPL(acpi_bus_get_private_data);
void acpi_bus_detach_private_data(acpi_handle handle)
{
acpi_detach_data(handle, acpi_bus_private_data_handler);
}
EXPORT_SYMBOL_GPL(acpi_bus_detach_private_data);
void acpi_bus_no_hotplug(acpi_handle handle)
{

2
include/acpi/acpi_bus.h
View File

@ -406,6 +406,8 @@ extern struct kobject *acpi_kobj;
extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
void acpi_bus_private_data_handler(acpi_handle, void *);
int acpi_bus_get_private_data(acpi_handle, void **);
int acpi_bus_attach_private_data(acpi_handle, void *);
void acpi_bus_detach_private_data(acpi_handle);
void acpi_bus_no_hotplug(acpi_handle handle);
extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
extern int register_acpi_notifier(struct notifier_block *);