diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
index 7901c3babc8c16dbf3ee32c53022a29ba15f07fb..917e79951aac283adba00a5dcf6a2418fda4f171 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
@@ -359,11 +359,6 @@ static inline void dsi_write(struct dw_mipi_dsi_rockchip *dsi, u32 reg, u32 val)
 	writel(val, dsi->base + reg);
 }
 
-static inline u32 dsi_read(struct dw_mipi_dsi_rockchip *dsi, u32 reg)
-{
-	return readl(dsi->base + reg);
-}
-
 static void dw_mipi_dsi_phy_write(struct dw_mipi_dsi_rockchip *dsi,
 				  u8 test_code,
 				  u8 test_data)