diff --git a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt
index 63cf10066e8b..00dac8148e9b 100644
--- a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt
+++ b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt
@@ -4,6 +4,7 @@ Required properties:
 
 - compatible: "rockchip,pdm"
   - "rockchip,px30-pdm"
+  - "rockchip,rk1808-pdm"
   - "rockchip,rk3308-pdm"
 - reg: physical base address of the controller and length of memory mapped
   region.
diff --git a/sound/soc/rockchip/rockchip_pdm.c b/sound/soc/rockchip/rockchip_pdm.c
index b9843e764ba6..432ffb435fe7 100644
--- a/sound/soc/rockchip/rockchip_pdm.c
+++ b/sound/soc/rockchip/rockchip_pdm.c
@@ -457,6 +457,8 @@ static const struct of_device_id rockchip_pdm_match[] = {
 	{ .compatible = "rockchip,pdm", },
 	{ .compatible = "rockchip,px30-pdm",
 	  .data = (void *)RK_PDM_RK3308 },
+	{ .compatible = "rockchip,rk1808-pdm",
+	  .data = (void *)RK_PDM_RK3308 },
 	{ .compatible = "rockchip,rk3308-pdm",
 	  .data = (void *)RK_PDM_RK3308 },
 	{},