video: Use cache-alignment in video_sync()

Sometimes the frame buffer is not a multiple of the cache line size.
Adjust the cache-flushing code to avoid cache warnings/errors in this
case.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c
index 11ca793..3036e3a 100644 (file)
--- a/drivers/video/video-uclass.c
+++ b/drivers/video/video-uclass.c
@@ -117,7 +117,8 @@ void video_sync(struct udevice *vid)
 
        if (priv->flush_dcache) {
                flush_dcache_range((ulong)priv->fb,
-                                  (ulong)priv->fb + priv->fb_size);
+                                  ALIGN((ulong)priv->fb + priv->fb_size,
+                                        CONFIG_SYS_CACHELINE_SIZE));
        }
 #elif defined(CONFIG_VIDEO_SANDBOX_SDL)
        struct video_priv *priv = dev_get_uclass_priv(vid);