diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
index 76def469bbd8..5d8b6e4830c9 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
@@ -581,6 +581,8 @@ static int mipi_dphy_power_on(struct dw_mipi_dsi *dsi)
 
 static void mipi_dphy_power_off(struct dw_mipi_dsi *dsi)
 {
+	regmap_write(dsi->regmap, DSI_PHY_RSTZ, 0);
+
 	if (dsi->dphy.phy)
 		phy_power_off(dsi->dphy.phy);
 }