hyperv-fb: add blanking support

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/video/hyperv_fb.c b/drivers/video/hyperv_fb.c
index 8d456dc449b8..130708f96430 100644
--- a/drivers/video/hyperv_fb.c
+++ b/drivers/video/hyperv_fb.c
@@ -575,6 +575,10 @@ static int hvfb_setcolreg(unsigned regno, unsigned red, unsigned green,
         return 0;
 }
 
+static int hvfb_blank(int blank, struct fb_info *info)
+{
+        return 1;       /* get fb_blank to set the colormap to all black */
+}
 
 static struct fb_ops hvfb_ops = {
         .owner = THIS_MODULE,
@@ -584,6 +588,7 @@ static struct fb_ops hvfb_ops = {
         .fb_fillrect = cfb_fillrect,
         .fb_copyarea = cfb_copyarea,
         .fb_imageblit = cfb_imageblit,
+        .fb_blank = hvfb_blank,
 };