static const char * const rt5640_data_select[] = {
        "Normal", "left copy to right", "right copy to left", "Swap"};
 
-static const SOC_ENUM_SINGLE_DECL(rt5640_if1_dac_enum, RT5640_DIG_INF_DATA,
-                               RT5640_IF1_DAC_SEL_SFT, rt5640_data_select);
+static SOC_ENUM_SINGLE_DECL(rt5640_if1_dac_enum, RT5640_DIG_INF_DATA,
+                           RT5640_IF1_DAC_SEL_SFT, rt5640_data_select);
 
-static const SOC_ENUM_SINGLE_DECL(rt5640_if1_adc_enum, RT5640_DIG_INF_DATA,
-                               RT5640_IF1_ADC_SEL_SFT, rt5640_data_select);
+static SOC_ENUM_SINGLE_DECL(rt5640_if1_adc_enum, RT5640_DIG_INF_DATA,
+                           RT5640_IF1_ADC_SEL_SFT, rt5640_data_select);
 
-static const SOC_ENUM_SINGLE_DECL(rt5640_if2_dac_enum, RT5640_DIG_INF_DATA,
-                               RT5640_IF2_DAC_SEL_SFT, rt5640_data_select);
+static SOC_ENUM_SINGLE_DECL(rt5640_if2_dac_enum, RT5640_DIG_INF_DATA,
+                           RT5640_IF2_DAC_SEL_SFT, rt5640_data_select);
 
-static const SOC_ENUM_SINGLE_DECL(rt5640_if2_adc_enum, RT5640_DIG_INF_DATA,
-                               RT5640_IF2_ADC_SEL_SFT, rt5640_data_select);
+static SOC_ENUM_SINGLE_DECL(rt5640_if2_adc_enum, RT5640_DIG_INF_DATA,
+                           RT5640_IF2_ADC_SEL_SFT, rt5640_data_select);
 
 /* Class D speaker gain ratio */
 static const char * const rt5640_clsd_spk_ratio[] = {"1.66x", "1.83x", "1.94x",
        "2x", "2.11x", "2.22x", "2.33x", "2.44x", "2.55x", "2.66x", "2.77x"};
 
-static const SOC_ENUM_SINGLE_DECL(
-       rt5640_clsd_spk_ratio_enum, RT5640_CLS_D_OUT,
-       RT5640_CLSD_RATIO_SFT, rt5640_clsd_spk_ratio);
+static SOC_ENUM_SINGLE_DECL(rt5640_clsd_spk_ratio_enum, RT5640_CLS_D_OUT,
+                           RT5640_CLSD_RATIO_SFT, rt5640_clsd_spk_ratio);
 
 static const struct snd_kcontrol_new rt5640_snd_controls[] = {
        /* Speaker Output Volume */
        "DIG MIX", "ADC"
 };
 
-static const SOC_ENUM_SINGLE_DECL(
-       rt5640_stereo_adc1_enum, RT5640_STO_ADC_MIXER,
-       RT5640_ADC_1_SRC_SFT, rt5640_stereo_adc1_src);
+static SOC_ENUM_SINGLE_DECL(rt5640_stereo_adc1_enum, RT5640_STO_ADC_MIXER,
+                           RT5640_ADC_1_SRC_SFT, rt5640_stereo_adc1_src);
 
 static const struct snd_kcontrol_new rt5640_sto_adc_1_mux =
        SOC_DAPM_ENUM("Stereo ADC1 Mux", rt5640_stereo_adc1_enum);
        "DMIC1", "DMIC2", "DIG MIX"
 };
 
-static const SOC_ENUM_SINGLE_DECL(
-       rt5640_stereo_adc2_enum, RT5640_STO_ADC_MIXER,
-       RT5640_ADC_2_SRC_SFT, rt5640_stereo_adc2_src);
+static SOC_ENUM_SINGLE_DECL(rt5640_stereo_adc2_enum, RT5640_STO_ADC_MIXER,
+                           RT5640_ADC_2_SRC_SFT, rt5640_stereo_adc2_src);
 
 static const struct snd_kcontrol_new rt5640_sto_adc_2_mux =
        SOC_DAPM_ENUM("Stereo ADC2 Mux", rt5640_stereo_adc2_enum);
        "Mono DAC MIXL", "ADCL"
 };
 
-static const SOC_ENUM_SINGLE_DECL(
-       rt5640_mono_adc_l1_enum, RT5640_MONO_ADC_MIXER,
-       RT5640_MONO_ADC_L1_SRC_SFT, rt5640_mono_adc_l1_src);
+static SOC_ENUM_SINGLE_DECL(rt5640_mono_adc_l1_enum, RT5640_MONO_ADC_MIXER,
+                           RT5640_MONO_ADC_L1_SRC_SFT, rt5640_mono_adc_l1_src);
 
 static const struct snd_kcontrol_new rt5640_mono_adc_l1_mux =
        SOC_DAPM_ENUM("Mono ADC1 left source", rt5640_mono_adc_l1_enum);
        "DMIC L1", "DMIC L2", "Mono DAC MIXL"
 };
 
-static const SOC_ENUM_SINGLE_DECL(
-       rt5640_mono_adc_l2_enum, RT5640_MONO_ADC_MIXER,
-       RT5640_MONO_ADC_L2_SRC_SFT, rt5640_mono_adc_l2_src);
+static SOC_ENUM_SINGLE_DECL(rt5640_mono_adc_l2_enum, RT5640_MONO_ADC_MIXER,
+                           RT5640_MONO_ADC_L2_SRC_SFT, rt5640_mono_adc_l2_src);
 
 static const struct snd_kcontrol_new rt5640_mono_adc_l2_mux =
        SOC_DAPM_ENUM("Mono ADC2 left source", rt5640_mono_adc_l2_enum);
        "Mono DAC MIXR", "ADCR"
 };
 
-static const SOC_ENUM_SINGLE_DECL(
-       rt5640_mono_adc_r1_enum, RT5640_MONO_ADC_MIXER,
-       RT5640_MONO_ADC_R1_SRC_SFT, rt5640_mono_adc_r1_src);
+static SOC_ENUM_SINGLE_DECL(rt5640_mono_adc_r1_enum, RT5640_MONO_ADC_MIXER,
+                           RT5640_MONO_ADC_R1_SRC_SFT, rt5640_mono_adc_r1_src);
 
 static const struct snd_kcontrol_new rt5640_mono_adc_r1_mux =
        SOC_DAPM_ENUM("Mono ADC1 right source", rt5640_mono_adc_r1_enum);
        "DMIC R1", "DMIC R2", "Mono DAC MIXR"
 };
 
-static const SOC_ENUM_SINGLE_DECL(
-       rt5640_mono_adc_r2_enum, RT5640_MONO_ADC_MIXER,
-       RT5640_MONO_ADC_R2_SRC_SFT, rt5640_mono_adc_r2_src);
+static SOC_ENUM_SINGLE_DECL(rt5640_mono_adc_r2_enum, RT5640_MONO_ADC_MIXER,
+                           RT5640_MONO_ADC_R2_SRC_SFT, rt5640_mono_adc_r2_src);
 
 static const struct snd_kcontrol_new rt5640_mono_adc_r2_mux =
        SOC_DAPM_ENUM("Mono ADC2 right source", rt5640_mono_adc_r2_enum);
        3,
 };
 
-static const SOC_VALUE_ENUM_SINGLE_DECL(
-       rt5640_dac_l2_enum, RT5640_DSP_PATH2, RT5640_DAC_L2_SEL_SFT,
-       0x3, rt5640_dac_l2_src, rt5640_dac_l2_values);
+static SOC_VALUE_ENUM_SINGLE_DECL(rt5640_dac_l2_enum,
+                                 RT5640_DSP_PATH2, RT5640_DAC_L2_SEL_SFT,
+                                 0x3, rt5640_dac_l2_src, rt5640_dac_l2_values);
 
 static const struct snd_kcontrol_new rt5640_dac_l2_mux =
        SOC_DAPM_VALUE_ENUM("DAC2 left channel source", rt5640_dac_l2_enum);
        0,
 };
 
-static const SOC_VALUE_ENUM_SINGLE_DECL(
-       rt5640_dac_r2_enum, RT5640_DSP_PATH2, RT5640_DAC_R2_SEL_SFT,
-       0x3, rt5640_dac_r2_src, rt5640_dac_r2_values);
+static SOC_VALUE_ENUM_SINGLE_DECL(rt5640_dac_r2_enum,
+                                 RT5640_DSP_PATH2, RT5640_DAC_R2_SEL_SFT,
+                                 0x3, rt5640_dac_r2_src, rt5640_dac_r2_values);
 
 static const struct snd_kcontrol_new rt5640_dac_r2_mux =
        SOC_DAPM_ENUM("DAC2 right channel source", rt5640_dac_r2_enum);
        7,
 };
 
-static const SOC_VALUE_ENUM_SINGLE_DECL(
-       rt5640_dai_iis_map_enum, RT5640_I2S1_SDP, RT5640_I2S_IF_SFT,
-       0x7, rt5640_dai_iis_map, rt5640_dai_iis_map_values);
+static SOC_VALUE_ENUM_SINGLE_DECL(rt5640_dai_iis_map_enum,
+                                 RT5640_I2S1_SDP, RT5640_I2S_IF_SFT,
+                                 0x7, rt5640_dai_iis_map,
+                                 rt5640_dai_iis_map_values);
 
 static const struct snd_kcontrol_new rt5640_dai_mux =
        SOC_DAPM_VALUE_ENUM("DAI select", rt5640_dai_iis_map_enum);
        "IF1", "IF2"
 };
 
-static const SOC_ENUM_SINGLE_DECL(
-       rt5640_sdi_sel_enum, RT5640_I2S2_SDP,
-       RT5640_I2S2_SDI_SFT, rt5640_sdi_sel);
+static SOC_ENUM_SINGLE_DECL(rt5640_sdi_sel_enum, RT5640_I2S2_SDP,
+                           RT5640_I2S2_SDI_SFT, rt5640_sdi_sel);
 
 static const struct snd_kcontrol_new rt5640_sdi_mux =
        SOC_DAPM_ENUM("SDI select", rt5640_sdi_sel_enum);