drm/amdgpu/display: add helper functions to get/set backlight (v2)

[linux-2.6-microblaze.git] / drivers / gpu / drm / amd / display / amdgpu_dm / amdgpu_dm.h

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
index c6f79c7..721c8b4 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -436,6 +436,13 @@ struct amdgpu_display_manager {
         */
        struct list_head da_list;
        struct completion dmub_aux_transfer_done;
+
+       /**
+        * @brightness:
+        *
+        * cached backlight values.
+        */
+       u32 brightness[AMDGPU_DM_MAX_NUM_EDP];
 };
 
 enum dsc_clock_force_state {