diff --git a/sound/soc/rockchip/rockchip_pdm_v2.c b/sound/soc/rockchip/rockchip_pdm_v2.c
index 5c3c01ce4029..488e9441badf 100644
--- a/sound/soc/rockchip/rockchip_pdm_v2.c
+++ b/sound/soc/rockchip/rockchip_pdm_v2.c
@@ -414,7 +414,7 @@ static const char * const hpf_cutoff_text[] = {
 static SOC_ENUM_SINGLE_DECL(hpf_cutoff_enum, PDM_V2_FILTER_CTRL,
 			    19, hpf_cutoff_text);
 
-static const DECLARE_TLV_DB_SCALE(pdm_v2_digtal_gain_tlv, -6525, 375, 0);
+static const DECLARE_TLV_DB_SCALE(pdm_v2_digtal_gain_tlv, -6563, 75, 0);
 
 static const struct snd_kcontrol_new rockchip_pdm_v2_controls[] = {
 	SOC_ENUM("Receive PATH3 Source Select", rpath3_enum),
diff --git a/sound/soc/rockchip/rockchip_pdm_v2.h b/sound/soc/rockchip/rockchip_pdm_v2.h
index e90fe3777f69..027dfc7460b7 100644
--- a/sound/soc/rockchip/rockchip_pdm_v2.h
+++ b/sound/soc/rockchip/rockchip_pdm_v2.h
@@ -76,9 +76,9 @@
 /* PDM_V2_FILTER_CTRL */
 /* 0.375dB every step. 0: mute, 1: -65.25dB, 255: 30dB */
 #define PDM_V2_GAIN_CTRL_MSK		(0xff << 23)
-#define PDM_V2_GAIN_CTRL_SHIFT		23
+#define PDM_V2_GAIN_CTRL_SHIFT		24
 #define PDM_V2_GAIN_MIN			0
-#define PDM_V2_GAIN_MAX			0xff
+#define PDM_V2_GAIN_MAX			0x7f
 #define PDM_V2_GAIN_0DB			(175 << 23)
 #define PDM_V2_GAIN_24DB		(239 << 23)
 #define PDM_V2_HPF_R_MSK		(0x1 << 21)