1 files changed, 19 insertions, 0 deletions

diff --git a/sound/soc/codecs/wm8958-dsp2.c b/sound/soc/codecs/wm8958-dsp2.c
index 5d4bc7a21df7..ca26779bb6b2 100644
--- a/sound/soc/codecs/wm8958-dsp2.c
+++ b/sound/soc/codecs/wm8958-dsp2.c
@@ -508,6 +508,9 @@ static int wm8958_mbc_put(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
         struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
 
+        if (wm8994->mbc_ena[mbc] == ucontrol->value.integer.value[0])
+                return 0;
+
         if (ucontrol->value.integer.value[0] > 1)
                 return -EINVAL;
 
@@ -628,6 +631,9 @@ static int wm8958_vss_put(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
         struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
 
+        if (wm8994->vss_ena[vss] == ucontrol->value.integer.value[0])
+                return 0;
+
         if (ucontrol->value.integer.value[0] > 1)
                 return -EINVAL;
 
@@ -689,6 +695,16 @@ static int wm8958_hpf_put(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
         struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
 
+        if (hpf < 3) {
+                if (wm8994->hpf1_ena[hpf % 3] ==
+                    ucontrol->value.integer.value[0])
+                        return 0;
+        } else {
+                if (wm8994->hpf2_ena[hpf % 3] ==
+                    ucontrol->value.integer.value[0])
+                        return 0;
+        }
+
         if (ucontrol->value.integer.value[0] > 1)
                 return -EINVAL;
 
@@ -782,6 +798,9 @@ static int wm8958_enh_eq_put(struct snd_kcontrol *kcontrol,
         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
         struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
 
+        if (wm8994->enh_eq_ena[eq] == ucontrol->value.integer.value[0])
+                return 0;
+
         if (ucontrol->value.integer.value[0] > 1)
                 return -EINVAL;