Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

[karo-tx-linux.git] / include / acpi / video.h

diff --git a/include/acpi/video.h b/include/acpi/video.h
index f11d342b45670f1137d695557388935df7f4cf18..5ca2f2c1645811f4893a7c15758da1bccf05bfe7 100644 (file)
--- a/include/acpi/video.h
+++ b/include/acpi/video.h
@@ -32,6 +32,10 @@ extern int acpi_video_get_edid(struct acpi_device *device, int type,
                               int device_id, void **edid);
 extern enum acpi_backlight_type acpi_video_get_backlight_type(void);
 extern void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type);
+/*
+ * Note: The value returned by acpi_video_handles_brightness_key_presses()
+ * may change over time and should not be cached.
+ */
 extern bool acpi_video_handles_brightness_key_presses(void);
 #else
 static inline int acpi_video_register(void) { return 0; }