display: add display frame rate interfaces

Display frame rate can be adjusted by the interfaces.

Change-Id: I41d0cabb993d72c62a72229418c1e9a891099161
Signed-off-by: taeyoung <ty317.kim@samsung.com>

diff --git a/hw/display.h b/hw/display.h
index 83ec3ed..34b3d74 100644 (file)
--- a/hw/display.h
+++ b/hw/display.h
@@ -81,6 +81,12 @@ struct display_device {
        /* Control panel mode mode */
        int (*get_panel_mode)(enum display_panel_mode *mode);
        int (*set_panel_mode)(enum display_panel_mode mode);
+
+       /* Control display frame rate */
+       int (*get_max_frame_rate)(int *rate);
+       int (*get_min_frame_rate)(int *rate);
+       int (*get_frame_rate)(int *rate);
+       int (*set_frame_rate)(int rate);
 };
 
 #endif