diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index e3e55d9e9ca4..868d11eec026 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -3444,10 +3444,10 @@ vop_crtc_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode *mode)
 
 	/*
 	 * Dclk need to be double if BT656 interface and vop version >= 2.12.
-	 * That is RV1126/RV1106/RK3576_LITE/RK3506
+	 * That is RV1126/RV1106/RK3576_LITE/RK3506/RV1126B
 	 */
 	if (mode->flags & DRM_MODE_FLAG_DBLCLK ||
-	    (VOP_MAJOR(vop->version) == 2 && VOP_MINOR(vop->version) >= 12 &&
+	    (vop->version >= VOP_VERSION_RV1106 && vop->version <= VOP_VERSION_RK3288 &&
 	     s->output_if & VOP_OUTPUT_IF_BT656))
 		request_clock *= 2;
 	clock = clk_round_rate(vop->dclk, request_clock * 1000) / 1000;
@@ -3903,10 +3903,10 @@ static bool vop_crtc_mode_fixup(struct drm_crtc *crtc,
 
 	/*
 	 * Dclk need to be double if BT656 interface and vop version >= 2.12.
-	 * That is RV1126/RV1106/RK3576_LITE/RK3506
+	 * That is RV1126/RV1106/RK3576_LITE/RK3506/RV1126B
 	 */
 	if (mode->flags & DRM_MODE_FLAG_DBLCLK ||
-	    (VOP_MAJOR(vop->version) == 2 && VOP_MINOR(vop->version) >= 12 &&
+	    (vop->version >= VOP_VERSION_RV1106 && vop->version <= VOP_VERSION_RK3288 &&
 	     s->output_if & VOP_OUTPUT_IF_BT656))
 		adj_mode->crtc_clock *= 2;
 
@@ -4010,11 +4010,11 @@ static void vop_update_csc(struct drm_crtc *crtc)
 	u32 val;
 
 	/*
-	 * When using BT656, set RV1126/RV1106/RK3576_LITE/RK3506 to P8888 mode.
+	 * When using BT656, set RV1126/RV1106/RK3576_LITE/RK3506/RV1126B to P8888 mode.
 	 */
 	if ((s->output_mode == ROCKCHIP_OUT_MODE_AAAA &&
 	     !(vop->data->feature & VOP_FEATURE_OUTPUT_10BIT)) ||
-	    (VOP_MAJOR(vop->version) == 2 && VOP_MINOR(vop->version) >= 12 &&
+	    (vop->version >= VOP_VERSION_RV1106 && vop->version <= VOP_VERSION_RK3288 &&
 	     s->output_if & VOP_OUTPUT_IF_BT656))
 		s->output_mode = ROCKCHIP_OUT_MODE_P888;
 
diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
index 616c1b2e3a5d..e5075412065e 100644
--- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
+++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
@@ -1942,6 +1942,7 @@ static const struct vop_ctrl rv1126b_ctrl_data = {
 	.mipi_pin_pol = VOP_REG(RK3366_LIT_DSP_CTRL0, 0x7, 26),
 	.bt1120_yc_swap = VOP_REG(RK3366_LIT_DSP_CTRL0, 0x1, 30),
 	.bt1120_en = VOP_REG(RK3366_LIT_DSP_CTRL0, 0x1, 31),
+	.bt656_en = VOP_REG(RK3366_LIT_DSP_CTRL0, 0x1, 6),
 
 	.mcu_force_rdn = VOP_REG(RV1126B_DSP_CTRL1, 0x1, 21),