diff --git a/sound/soc/rockchip/rockchip_pdm_v2.c b/sound/soc/rockchip/rockchip_pdm_v2.c
index 6dcd9a2b0e73..8f35e7c695bc 100644
--- a/sound/soc/rockchip/rockchip_pdm_v2.c
+++ b/sound/soc/rockchip/rockchip_pdm_v2.c
@@ -821,6 +821,14 @@ static int rockchip_pdm_v2_probe(struct platform_device *pdev)
 	 */
 	pdm->version = (pdm->version >> 16) & 0xffff;
 
+	if (pdm->version == RK3506_PDM) {
+		regmap_update_bits(pdm->regmap, PDM_V2_GAIN_CTRL, PDM_V2_GAIN_CTRL_MSK,
+				   PDM_V2_GAIN_CTRL_0DB);
+	} else if (pdm->version == RK3576_PDM) {
+		regmap_update_bits(pdm->regmap, PDM_V2_FILTER_CTRL, PDM_V2_GAIN_MSK,
+				   PDM_V2_GAIN_0DB);
+	}
+
 	ret = rockchip_pdm_v2_path_parse(pdm, node);
 	if (ret != 0 && ret != -ENOENT)
 		goto err_hclk;
diff --git a/sound/soc/rockchip/rockchip_pdm_v2.h b/sound/soc/rockchip/rockchip_pdm_v2.h
index 86bf17918e1a..ed2144d5dbc7 100644
--- a/sound/soc/rockchip/rockchip_pdm_v2.h
+++ b/sound/soc/rockchip/rockchip_pdm_v2.h
@@ -150,5 +150,6 @@
 #define PDM_V2_GAIN_CTRL_SHIFT		1
 #define PDM_V2_GAIN_CTRL_MIN		0
 #define PDM_V2_GAIN_CTRL_MAX		0x7f
+#define PDM_V2_GAIN_CTRL_0DB		(175 << 0)
 
 #endif