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-rw-r--r--include/acpi/acpi_bus.h2
-rw-r--r--include/acpi/acpiosxf.h3
-rw-r--r--include/acpi/platform/aclinux.h20
-rw-r--r--include/acpi/video.h2
4 files changed, 25 insertions, 2 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 3a10ef5..6cd5b64 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -210,7 +210,7 @@ struct acpi_device_power_state {
struct acpi_device_power {
int state; /* Current state */
struct acpi_device_power_flags flags;
- struct acpi_device_power_state states[4]; /* Power states (D0-D3) */
+ struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */
};
/* Performance Management */
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index a756bc8..4543b6f 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -98,8 +98,11 @@ acpi_os_table_override(struct acpi_table_header *existing_table,
/*
* Spinlock primitives
*/
+
+#ifndef acpi_os_create_lock
acpi_status
acpi_os_create_lock(acpi_spinlock *out_handle);
+#endif
void acpi_os_delete_lock(acpi_spinlock handle);
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 5d2a5e9..f72403c 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -59,7 +59,7 @@
#include <linux/ctype.h>
#include <linux/sched.h>
#include <asm/system.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/div64.h>
#include <asm/acpi.h>
#include <linux/slab.h>
@@ -159,6 +159,24 @@ static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
} while (0)
#endif
+/*
+ * When lockdep is enabled, the spin_lock_init() macro stringifies it's
+ * argument and uses that as a name for the lock in debugging.
+ * By executing spin_lock_init() in a macro the key changes from "lock" for
+ * all locks to the name of the argument of acpi_os_create_lock(), which
+ * prevents lockdep from reporting false positives for ACPICA locks.
+ */
+#define acpi_os_create_lock(__handle) \
+({ \
+ spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \
+ \
+ if (lock) { \
+ *(__handle) = lock; \
+ spin_lock_init(*(__handle)); \
+ } \
+ lock ? AE_OK : AE_NO_MEMORY; \
+})
+
#endif /* __KERNEL__ */
#endif /* __ACLINUX_H__ */
diff --git a/include/acpi/video.h b/include/acpi/video.h
index 0e98e67..61109f2 100644
--- a/include/acpi/video.h
+++ b/include/acpi/video.h
@@ -5,6 +5,8 @@
struct acpi_device;
+#define ACPI_VIDEO_CLASS "video"
+
#define ACPI_VIDEO_DISPLAY_CRT 1
#define ACPI_VIDEO_DISPLAY_TV 2
#define ACPI_VIDEO_DISPLAY_DVI 3
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