Allow the cache-flushing function of a video device to be controlled.
Signed-off-by: Simon Glass sjg@chromium.org ---
drivers/video/video-uclass.c | 7 +++++++ include/video.h | 8 ++++++++ 2 files changed, 15 insertions(+)
diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c index 63d0d9d..24d537e 100644 --- a/drivers/video/video-uclass.c +++ b/drivers/video/video-uclass.c @@ -42,6 +42,13 @@ */ DECLARE_GLOBAL_DATA_PTR;
+void video_set_flush_dcache(struct udevice *dev, bool flush) +{ + struct video_priv *priv = dev_get_uclass_priv(dev); + + priv->flush_dcache = flush; +} + static ulong alloc_fb(struct udevice *dev, ulong *addrp) { struct video_uc_platdata *plat = dev_get_uclass_platdata(dev); diff --git a/include/video.h b/include/video.h index 5fd426e..5b147ba 100644 --- a/include/video.h +++ b/include/video.h @@ -159,6 +159,14 @@ int video_get_xsize(struct udevice *dev); */ int video_get_ysize(struct udevice *dev);
+/** + * Set whether we need to flush the dcache when changing the image. This + * defaults to off. + * + * @param flush non-zero to flush cache after update, 0 to skip + */ +void video_set_flush_dcache(struct udevice *dev, bool flush); + #endif /* CONFIG_DM_VIDEO */
#ifndef CONFIG_DM_VIDEO