diff --git a/drivers/gpu/drm/meson/meson_registers.h b/drivers/gpu/drm/meson/meson_registers.h
index 057453ce027c..f8dd1be0131e 100644
--- a/drivers/gpu/drm/meson/meson_registers.h
+++ b/drivers/gpu/drm/meson/meson_registers.h
@@ -12,7 +12,7 @@
 #define _REG(reg)	((reg) << 2)
 
 #define writel_bits_relaxed(mask, val, addr) \
-	writel_relaxed((readl_relaxed(addr) & ~(mask)) | (val), addr)
+	writel_relaxed((readl_relaxed(addr) & ~(mask)) | ((val) & (mask)), addr)
 
 /* vpp2 */
 #define VPP2_DUMMY_DATA 0x1900