drm/sun4i: tcon: Mark expected switch fall-through
authorGustavo A. R. Silva <gustavo@embeddedor.com>
Tue, 20 Aug 2019 17:47:06 +0000 (12:47 -0500)
committerGustavo A. R. Silva <gustavo@embeddedor.com>
Wed, 21 Aug 2019 00:43:08 +0000 (19:43 -0500)
Mark switch cases where we are expecting to fall through.

Fix the following warning (Building: sunxi_defconfig arm):

drivers/gpu/drm/sun4i/sun4i_tcon.c: In function ‘sun4i_tcon0_mode_set_dithering’:
drivers/gpu/drm/sun4i/sun4i_tcon.c:318:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
   val |= SUN4I_TCON0_FRM_CTL_MODE_B;
drivers/gpu/drm/sun4i/sun4i_tcon.c:319:2: note: here
  case MEDIA_BUS_FMT_RGB666_1X18:
  ^~~~

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
drivers/gpu/drm/sun4i/sun4i_tcon.c

index 64c43ee..df0cc8f 100644 (file)
@@ -314,6 +314,7 @@ static void sun4i_tcon0_mode_set_dithering(struct sun4i_tcon *tcon,
                /* R and B components are only 5 bits deep */
                val |= SUN4I_TCON0_FRM_CTL_MODE_R;
                val |= SUN4I_TCON0_FRM_CTL_MODE_B;
+               /* Fall through */
        case MEDIA_BUS_FMT_RGB666_1X18:
        case MEDIA_BUS_FMT_RGB666_1X7X3_SPWG:
                /* Fall through: enable dithering */