video: fbdev: sm501fb: mark expected switch fall-through in sm501fb_blank_crt

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/video/fbdev/sm501fb.c b/drivers/video/fbdev/sm501fb.c
index 49233c192662..8d4fdb373299 100644
--- a/drivers/video/fbdev/sm501fb.c
+++ b/drivers/video/fbdev/sm501fb.c
@@ -1008,6 +1008,7 @@ static int sm501fb_blank_crt(int blank_mode, struct fb_info *info)
         case FB_BLANK_POWERDOWN:
                 ctrl &= ~SM501_DC_CRT_CONTROL_ENABLE;
                 sm501_misc_control(fbi->dev->parent, SM501_MISC_DAC_POWER, 0);
+                /* fall through */
 
         case FB_BLANK_NORMAL:
                 ctrl |= SM501_DC_CRT_CONTROL_BLANK;