diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c
index d8bf00b442e95bdd1dd251dda94faca05b37d242..a3782d05cd6697356ce7d95a791d75e6b2294620 100644
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -613,7 +613,9 @@ static void vc4_vec_encoder_enable(struct drm_encoder *encoder,
 	VEC_WRITE(VEC_CLMP0_START, 0xac);
 	VEC_WRITE(VEC_CLMP0_END, 0xec);
 	VEC_WRITE(VEC_CONFIG2,
-		  VEC_CONFIG2_UV_DIG_DIS | VEC_CONFIG2_RGB_DIG_DIS);
+		  VEC_CONFIG2_UV_DIG_DIS |
+		  VEC_CONFIG2_RGB_DIG_DIS |
+		  ((adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) ? 0 : VEC_CONFIG2_PROG_SCAN));
 	VEC_WRITE(VEC_CONFIG3, VEC_CONFIG3_HORIZ_LEN_STD);
 	VEC_WRITE(VEC_DAC_CONFIG, vec->variant->dac_config);