]> git.ipfire.org Git - thirdparty/kernel/linux.git/commitdiff
ASoC: mediatek: mt8188: Add support for DMIC
authorparkeryang <Parker.Yang@mediatek.com>
Tue, 25 Feb 2025 14:33:50 +0000 (11:33 -0300)
committerMark Brown <broonie@kernel.org>
Tue, 25 Feb 2025 14:58:50 +0000 (14:58 +0000)
Add support for the DMIC DAIs present on the MT8188 SoC. To achieve
that, add a DAI driver for DMIC and register it during probe, and
describe the AFE routes that connect the DMIC (I004-I011) to the UL9
frontend (O002-O009).

Signed-off-by: parkeryang <Parker.Yang@mediatek.com>
Co-developed-by: NĂ­colas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: NĂ­colas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20250225-genio700-dmic-v2-4-3076f5b50ef7@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/mediatek/mt8188/Makefile
sound/soc/mediatek/mt8188/mt8188-afe-common.h
sound/soc/mediatek/mt8188/mt8188-afe-pcm.c
sound/soc/mediatek/mt8188/mt8188-dai-dmic.c [new file with mode: 0644]
sound/soc/mediatek/mt8188/mt8188-reg.h

index 1178bce45c50ba252672a32b3877732a5a76c610..b9f3e4ad7b07ba9e21c846706371c53269f894db 100644 (file)
@@ -6,6 +6,7 @@ snd-soc-mt8188-afe-y := \
        mt8188-afe-pcm.o \
        mt8188-audsys-clk.o \
        mt8188-dai-adda.o \
+       mt8188-dai-dmic.o \
        mt8188-dai-etdm.o \
        mt8188-dai-pcm.o
 
index 1304d685a306bcb43b5131eff165b80051810b04..01aa11242e29c51539903fd1decc4c575d5e97bd 100644 (file)
@@ -137,6 +137,7 @@ struct mt8188_afe_private {
 int mt8188_afe_fs_timing(unsigned int rate);
 /* dai register */
 int mt8188_dai_adda_register(struct mtk_base_afe *afe);
+int mt8188_dai_dmic_register(struct mtk_base_afe *afe);
 int mt8188_dai_etdm_register(struct mtk_base_afe *afe);
 int mt8188_dai_pcm_register(struct mtk_base_afe *afe);
 
index d36520c6272dd8c8302bc3f59da33f82f273f366..a2b57e00ff4e502bfd8bc57835b792825f348c1b 100644 (file)
@@ -652,6 +652,7 @@ static struct snd_soc_dai_driver mt8188_memif_dai_driver[] = {
 
 static const struct snd_kcontrol_new o002_mix[] = {
        SOC_DAPM_SINGLE_AUTODISABLE("I000 Switch", AFE_CONN2, 0, 1, 0),
+       SOC_DAPM_SINGLE_AUTODISABLE("I004 Switch", AFE_CONN2, 4, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I012 Switch", AFE_CONN2, 12, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I020 Switch", AFE_CONN2, 20, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I022 Switch", AFE_CONN2, 22, 1, 0),
@@ -662,6 +663,8 @@ static const struct snd_kcontrol_new o002_mix[] = {
 
 static const struct snd_kcontrol_new o003_mix[] = {
        SOC_DAPM_SINGLE_AUTODISABLE("I001 Switch", AFE_CONN3, 1, 1, 0),
+       SOC_DAPM_SINGLE_AUTODISABLE("I005 Switch", AFE_CONN3, 5, 1, 0),
+       SOC_DAPM_SINGLE_AUTODISABLE("I006 Switch", AFE_CONN3, 6, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I013 Switch", AFE_CONN3, 13, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I021 Switch", AFE_CONN3, 21, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I023 Switch", AFE_CONN3, 23, 1, 0),
@@ -672,6 +675,8 @@ static const struct snd_kcontrol_new o003_mix[] = {
 
 static const struct snd_kcontrol_new o004_mix[] = {
        SOC_DAPM_SINGLE_AUTODISABLE("I000 Switch", AFE_CONN4, 0, 1, 0),
+       SOC_DAPM_SINGLE_AUTODISABLE("I006 Switch", AFE_CONN4, 6, 1, 0),
+       SOC_DAPM_SINGLE_AUTODISABLE("I008 Switch", AFE_CONN4, 8, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I014 Switch", AFE_CONN4, 14, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I024 Switch", AFE_CONN4, 24, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I074 Switch", AFE_CONN4_2, 10, 1, 0),
@@ -679,6 +684,8 @@ static const struct snd_kcontrol_new o004_mix[] = {
 
 static const struct snd_kcontrol_new o005_mix[] = {
        SOC_DAPM_SINGLE_AUTODISABLE("I001 Switch", AFE_CONN5, 1, 1, 0),
+       SOC_DAPM_SINGLE_AUTODISABLE("I007 Switch", AFE_CONN5, 7, 1, 0),
+       SOC_DAPM_SINGLE_AUTODISABLE("I010 Switch", AFE_CONN5, 10, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I015 Switch", AFE_CONN5, 15, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I025 Switch", AFE_CONN5, 25, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I075 Switch", AFE_CONN5_2, 11, 1, 0),
@@ -686,6 +693,7 @@ static const struct snd_kcontrol_new o005_mix[] = {
 
 static const struct snd_kcontrol_new o006_mix[] = {
        SOC_DAPM_SINGLE_AUTODISABLE("I000 Switch", AFE_CONN6, 0, 1, 0),
+       SOC_DAPM_SINGLE_AUTODISABLE("I008 Switch", AFE_CONN6, 8, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I016 Switch", AFE_CONN6, 16, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I026 Switch", AFE_CONN6, 26, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I076 Switch", AFE_CONN6_2, 12, 1, 0),
@@ -693,18 +701,21 @@ static const struct snd_kcontrol_new o006_mix[] = {
 
 static const struct snd_kcontrol_new o007_mix[] = {
        SOC_DAPM_SINGLE_AUTODISABLE("I001 Switch", AFE_CONN7, 1, 1, 0),
+       SOC_DAPM_SINGLE_AUTODISABLE("I009 Switch", AFE_CONN7, 9, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I017 Switch", AFE_CONN7, 17, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I027 Switch", AFE_CONN7, 27, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I077 Switch", AFE_CONN7_2, 13, 1, 0),
 };
 
 static const struct snd_kcontrol_new o008_mix[] = {
+       SOC_DAPM_SINGLE_AUTODISABLE("I010 Switch", AFE_CONN8, 10, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I018 Switch", AFE_CONN8, 18, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I028 Switch", AFE_CONN8, 28, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I078 Switch", AFE_CONN8_2, 14, 1, 0),
 };
 
 static const struct snd_kcontrol_new o009_mix[] = {
+       SOC_DAPM_SINGLE_AUTODISABLE("I011 Switch", AFE_CONN9, 11, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I019 Switch", AFE_CONN9, 19, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I029 Switch", AFE_CONN9, 29, 1, 0),
        SOC_DAPM_SINGLE_AUTODISABLE("I079 Switch", AFE_CONN9_2, 15, 1, 0),
@@ -1275,6 +1286,18 @@ static const struct snd_soc_dapm_route mt8188_memif_routes[] = {
        {"O002", "I070 Switch", "I070"},
        {"O003", "I071 Switch", "I071"},
 
+       {"O002", "I004 Switch", "I004"},
+       {"O003", "I005 Switch", "I005"},
+       {"O003", "I006 Switch", "I006"},
+       {"O004", "I006 Switch", "I006"},
+       {"O004", "I008 Switch", "I008"},
+       {"O005", "I007 Switch", "I007"},
+       {"O005", "I010 Switch", "I010"},
+       {"O006", "I008 Switch", "I008"},
+       {"O007", "I009 Switch", "I009"},
+       {"O008", "I010 Switch", "I010"},
+       {"O009", "I011 Switch", "I011"},
+
        {"O034", "I000 Switch", "I000"},
        {"O035", "I001 Switch", "I001"},
        {"O034", "I002 Switch", "I002"},
@@ -3072,6 +3095,7 @@ static int mt8188_dai_memif_register(struct mtk_base_afe *afe)
 typedef int (*dai_register_cb)(struct mtk_base_afe *);
 static const dai_register_cb dai_register_cbs[] = {
        mt8188_dai_adda_register,
+       mt8188_dai_dmic_register,
        mt8188_dai_etdm_register,
        mt8188_dai_pcm_register,
        mt8188_dai_memif_register,
diff --git a/sound/soc/mediatek/mt8188/mt8188-dai-dmic.c b/sound/soc/mediatek/mt8188/mt8188-dai-dmic.c
new file mode 100644 (file)
index 0000000..4cfbcb7
--- /dev/null
@@ -0,0 +1,682 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MediaTek ALSA SoC Audio DAI DMIC I/F Control
+ *
+ * Copyright (c) 2020 MediaTek Inc.
+ * Author: Bicycle Tsai <bicycle.tsai@mediatek.com>
+ *         Trevor Wu <trevor.wu@mediatek.com>
+ *         Parker Yang <parker.yang@mediatek.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <sound/pcm_params.h>
+#include "mt8188-afe-clk.h"
+#include "mt8188-afe-common.h"
+#include "mt8188-reg.h"
+
+/* DMIC HW Gain configuration maximum value. */
+#define DMIC_GAIN_MAX_STEP     GENMASK(19, 0)
+#define DMIC_GAIN_MAX_PER_STEP GENMASK(7, 0)
+#define DMIC_GAIN_MAX_TARGET   GENMASK(27, 0)
+#define DMIC_GAIN_MAX_CURRENT  GENMASK(27, 0)
+
+#define CLK_PHASE_SEL_CH1 0
+#define CLK_PHASE_SEL_CH2 ((CLK_PHASE_SEL_CH1) + 4)
+
+#define DMIC1_SRC_SEL 0
+#define DMIC2_SRC_SEL 0
+#define DMIC3_SRC_SEL 2
+#define DMIC4_SRC_SEL 0
+#define DMIC5_SRC_SEL 4
+#define DMIC6_SRC_SEL 0
+#define DMIC7_SRC_SEL 6
+#define DMIC8_SRC_SEL 0
+
+enum {
+       SUPPLY_SEQ_DMIC_GAIN,
+       SUPPLY_SEQ_DMIC_CK,
+};
+
+enum {
+       DMIC0,
+       DMIC1,
+       DMIC2,
+       DMIC3,
+       DMIC_NUM,
+};
+
+struct mtk_dai_dmic_ctrl_reg {
+       unsigned int con0;
+};
+
+struct mtk_dai_dmic_hw_gain_ctrl_reg {
+       unsigned int bypass;
+       unsigned int con0;
+};
+
+struct mtk_dai_dmic_priv {
+       unsigned int gain_on[DMIC_NUM];
+       unsigned int channels;
+       bool hires_required;
+};
+
+static const struct mtk_dai_dmic_ctrl_reg dmic_ctrl_regs[DMIC_NUM] = {
+       [DMIC0] = {
+               .con0 = AFE_DMIC0_UL_SRC_CON0,
+       },
+       [DMIC1] = {
+               .con0 = AFE_DMIC1_UL_SRC_CON0,
+       },
+       [DMIC2] = {
+               .con0 = AFE_DMIC2_UL_SRC_CON0,
+       },
+       [DMIC3] = {
+               .con0 = AFE_DMIC3_UL_SRC_CON0,
+       },
+};
+
+static const struct mtk_dai_dmic_ctrl_reg *get_dmic_ctrl_reg(int id)
+{
+       if (id < 0 || id >= DMIC_NUM)
+               return NULL;
+
+       return &dmic_ctrl_regs[id];
+}
+
+static const struct mtk_dai_dmic_hw_gain_ctrl_reg
+       dmic_hw_gain_ctrl_regs[DMIC_NUM] = {
+       [DMIC0] = {
+               .bypass = DMIC_BYPASS_HW_GAIN,
+               .con0 = DMIC_GAIN1_CON0,
+       },
+       [DMIC1] = {
+               .bypass = DMIC_BYPASS_HW_GAIN,
+               .con0 = DMIC_GAIN2_CON0,
+       },
+       [DMIC2] = {
+               .bypass = DMIC_BYPASS_HW_GAIN,
+               .con0 = DMIC_GAIN3_CON0,
+       },
+       [DMIC3] = {
+               .bypass = DMIC_BYPASS_HW_GAIN,
+               .con0 = DMIC_GAIN4_CON0,
+       },
+};
+
+static const struct mtk_dai_dmic_hw_gain_ctrl_reg
+       *get_dmic_hw_gain_ctrl_reg(struct mtk_base_afe *afe, int id)
+{
+       if ((id < 0) || (id >= DMIC_NUM)) {
+               dev_dbg(afe->dev, "%s invalid id\n", __func__);
+               return NULL;
+       }
+
+       return &dmic_hw_gain_ctrl_regs[id];
+}
+
+static void mtk_dai_dmic_hw_gain_bypass(struct mtk_base_afe *afe,
+                                       unsigned int id, bool bypass)
+{
+       const struct mtk_dai_dmic_hw_gain_ctrl_reg *reg;
+       unsigned int msk;
+
+       reg = get_dmic_hw_gain_ctrl_reg(afe, id);
+       if (!reg)
+               return;
+
+       switch (id) {
+       case DMIC0:
+               msk = DMIC_BYPASS_HW_GAIN_DMIC1_BYPASS;
+               break;
+       case DMIC1:
+               msk = DMIC_BYPASS_HW_GAIN_DMIC2_BYPASS;
+               break;
+       case DMIC2:
+               msk = DMIC_BYPASS_HW_GAIN_DMIC3_BYPASS;
+               break;
+       case DMIC3:
+               msk = DMIC_BYPASS_HW_GAIN_DMIC4_BYPASS;
+               break;
+       default:
+               return;
+       }
+
+       if (bypass)
+               regmap_set_bits(afe->regmap, reg->bypass, msk);
+       else
+               regmap_clear_bits(afe->regmap, reg->bypass, msk);
+}
+
+static void mtk_dai_dmic_hw_gain_on(struct mtk_base_afe *afe, unsigned int id,
+                                   bool on)
+{
+       const struct mtk_dai_dmic_hw_gain_ctrl_reg *reg = get_dmic_hw_gain_ctrl_reg(afe, id);
+
+       if (!reg)
+               return;
+
+       if (on)
+               regmap_set_bits(afe->regmap, reg->con0, DMIC_GAIN_CON0_GAIN_ON);
+       else
+               regmap_clear_bits(afe->regmap, reg->con0, DMIC_GAIN_CON0_GAIN_ON);
+}
+
+static const struct reg_sequence mtk_dai_dmic_iir_coeff_reg_defaults[] = {
+       { AFE_DMIC0_IIR_COEF_02_01, 0x00000000 },
+       { AFE_DMIC0_IIR_COEF_04_03, 0x00003FB8 },
+       { AFE_DMIC0_IIR_COEF_06_05, 0x3FB80000 },
+       { AFE_DMIC0_IIR_COEF_08_07, 0x3FB80000 },
+       { AFE_DMIC0_IIR_COEF_10_09, 0x0000C048 },
+       { AFE_DMIC1_IIR_COEF_02_01, 0x00000000 },
+       { AFE_DMIC1_IIR_COEF_04_03, 0x00003FB8 },
+       { AFE_DMIC1_IIR_COEF_06_05, 0x3FB80000 },
+       { AFE_DMIC1_IIR_COEF_08_07, 0x3FB80000 },
+       { AFE_DMIC1_IIR_COEF_10_09, 0x0000C048 },
+       { AFE_DMIC2_IIR_COEF_02_01, 0x00000000 },
+       { AFE_DMIC2_IIR_COEF_04_03, 0x00003FB8 },
+       { AFE_DMIC2_IIR_COEF_06_05, 0x3FB80000 },
+       { AFE_DMIC2_IIR_COEF_08_07, 0x3FB80000 },
+       { AFE_DMIC2_IIR_COEF_10_09, 0x0000C048 },
+       { AFE_DMIC3_IIR_COEF_02_01, 0x00000000 },
+       { AFE_DMIC3_IIR_COEF_04_03, 0x00003FB8 },
+       { AFE_DMIC3_IIR_COEF_06_05, 0x3FB80000 },
+       { AFE_DMIC3_IIR_COEF_08_07, 0x3FB80000 },
+       { AFE_DMIC3_IIR_COEF_10_09, 0x0000C048 },
+};
+
+static int mtk_dai_dmic_load_iir_coeff_table(struct mtk_base_afe *afe)
+{
+       return regmap_multi_reg_write(afe->regmap,
+                                     mtk_dai_dmic_iir_coeff_reg_defaults,
+                                     ARRAY_SIZE(mtk_dai_dmic_iir_coeff_reg_defaults));
+}
+
+static int mtk_dai_dmic_configure_array(struct snd_soc_dai *dai)
+{
+       struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+       const u32 mask = PWR2_TOP_CON_DMIC8_SRC_SEL_MASK |
+                        PWR2_TOP_CON_DMIC7_SRC_SEL_MASK |
+                        PWR2_TOP_CON_DMIC6_SRC_SEL_MASK |
+                        PWR2_TOP_CON_DMIC5_SRC_SEL_MASK |
+                        PWR2_TOP_CON_DMIC4_SRC_SEL_MASK |
+                        PWR2_TOP_CON_DMIC3_SRC_SEL_MASK |
+                        PWR2_TOP_CON_DMIC2_SRC_SEL_MASK |
+                        PWR2_TOP_CON_DMIC1_SRC_SEL_MASK;
+       const u32 val = PWR2_TOP_CON_DMIC8_SRC_SEL_VAL(DMIC8_SRC_SEL) |
+                       PWR2_TOP_CON_DMIC7_SRC_SEL_VAL(DMIC7_SRC_SEL) |
+                       PWR2_TOP_CON_DMIC6_SRC_SEL_VAL(DMIC6_SRC_SEL) |
+                       PWR2_TOP_CON_DMIC5_SRC_SEL_VAL(DMIC5_SRC_SEL) |
+                       PWR2_TOP_CON_DMIC4_SRC_SEL_VAL(DMIC4_SRC_SEL) |
+                       PWR2_TOP_CON_DMIC3_SRC_SEL_VAL(DMIC3_SRC_SEL) |
+                       PWR2_TOP_CON_DMIC2_SRC_SEL_VAL(DMIC2_SRC_SEL) |
+                       PWR2_TOP_CON_DMIC1_SRC_SEL_VAL(DMIC1_SRC_SEL);
+
+       return regmap_update_bits(afe->regmap, PWR2_TOP_CON0, mask, val);
+}
+
+/* This function assumes that the caller checked that channels is valid */
+static u8 mtk_dmic_channels_to_dmic_number(unsigned int channels)
+{
+       switch (channels) {
+       case 1:
+               return DMIC0;
+       case 2:
+               return DMIC1;
+       case 3:
+               return DMIC2;
+       case 4:
+       default:
+               return DMIC3;
+       }
+}
+
+static void mtk_dai_dmic_hw_gain_enable(struct mtk_base_afe *afe,
+                                       unsigned int channels, bool enable)
+{
+       struct mt8188_afe_private *afe_priv = afe->platform_priv;
+       struct mtk_dai_dmic_priv *dmic_priv = afe_priv->dai_priv[MT8188_AFE_IO_DMIC_IN];
+       u8 dmic_num;
+       int i;
+
+       dmic_num = mtk_dmic_channels_to_dmic_number(channels);
+       for (i = dmic_num; i >= DMIC0; i--) {
+               if (enable && dmic_priv->gain_on[i]) {
+                       mtk_dai_dmic_hw_gain_bypass(afe, i, false);
+                       mtk_dai_dmic_hw_gain_on(afe, i, true);
+               } else {
+                       mtk_dai_dmic_hw_gain_on(afe, i, false);
+                       mtk_dai_dmic_hw_gain_bypass(afe, i, true);
+               }
+       }
+}
+
+static int mtk_dmic_gain_event(struct snd_soc_dapm_widget *w,
+                              struct snd_kcontrol *kcontrol,
+                              int event)
+{
+       struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
+       struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
+       struct mt8188_afe_private *afe_priv = afe->platform_priv;
+       struct mtk_dai_dmic_priv *dmic_priv = afe_priv->dai_priv[MT8188_AFE_IO_DMIC_IN];
+       unsigned int channels = dmic_priv->channels;
+
+       dev_dbg(afe->dev, "%s(), name %s, event 0x%x\n",
+               __func__, w->name, event);
+
+       if (!channels)
+               return -EINVAL;
+
+       switch (event) {
+       case SND_SOC_DAPM_PRE_PMU:
+               mtk_dai_dmic_hw_gain_enable(afe, channels, true);
+               break;
+       case SND_SOC_DAPM_POST_PMD:
+               mtk_dai_dmic_hw_gain_enable(afe, channels, false);
+               break;
+       default:
+               break;
+       }
+
+       return 0;
+}
+
+static int mtk_dmic_event(struct snd_soc_dapm_widget *w,
+                         struct snd_kcontrol *kcontrol,
+                         int event)
+{
+       struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
+       struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
+       struct mt8188_afe_private *afe_priv = afe->platform_priv;
+       struct mtk_dai_dmic_priv *dmic_priv = afe_priv->dai_priv[MT8188_AFE_IO_DMIC_IN];
+       const struct mtk_dai_dmic_ctrl_reg *reg = NULL;
+       unsigned int channels = dmic_priv->channels;
+       unsigned int msk;
+       u8 dmic_num;
+       int i;
+
+       dev_dbg(afe->dev, "%s(), name %s, event 0x%x\n",
+               __func__, w->name, event);
+
+       if (!channels)
+               return -EINVAL;
+
+       dmic_num = mtk_dmic_channels_to_dmic_number(channels);
+
+       switch (event) {
+       case SND_SOC_DAPM_PRE_PMU:
+               /* request fifo soft rst */
+               for (i = dmic_num; i >= DMIC0; i--)
+                       msk |= PWR2_TOP_CON1_DMIC_FIFO_SOFT_RST_EN(i);
+
+               regmap_set_bits(afe->regmap, PWR2_TOP_CON1, msk);
+
+               msk = AFE_DMIC_UL_SRC_CON0_UL_MODE_3P25M_CH1_CTL |
+                     AFE_DMIC_UL_SRC_CON0_UL_MODE_3P25M_CH2_CTL |
+                     AFE_DMIC_UL_SRC_CON0_UL_SDM_3_LEVEL_CTL |
+                     AFE_DMIC_UL_SRC_CON0_UL_IIR_ON_TMP_CTL;
+
+               for (i = dmic_num; i >= DMIC0; i--) {
+                       reg = get_dmic_ctrl_reg(i);
+                       if (reg)
+                               regmap_set_bits(afe->regmap, reg->con0, msk);
+               }
+               break;
+       case SND_SOC_DAPM_POST_PMU:
+               msk = AFE_DMIC_UL_SRC_CON0_UL_SRC_ON_TMP_CTL;
+
+               for (i = dmic_num; i >= DMIC0; i--) {
+                       reg = get_dmic_ctrl_reg(i);
+                       if (reg)
+                               regmap_set_bits(afe->regmap, reg->con0, msk);
+               }
+
+               if (dmic_priv->hires_required) {
+                       mt8188_afe_enable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_DMIC_HIRES1]);
+                       mt8188_afe_enable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_DMIC_HIRES2]);
+                       mt8188_afe_enable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_DMIC_HIRES3]);
+                       mt8188_afe_enable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_DMIC_HIRES4]);
+               }
+
+               mt8188_afe_enable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_AFE_DMIC1]);
+               mt8188_afe_enable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_AFE_DMIC2]);
+               mt8188_afe_enable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_AFE_DMIC3]);
+               mt8188_afe_enable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_AFE_DMIC4]);
+
+               /* release fifo soft rst */
+               msk = 0;
+               for (i = dmic_num; i >= DMIC0; i--)
+                       msk |= PWR2_TOP_CON1_DMIC_FIFO_SOFT_RST_EN(i);
+
+               regmap_clear_bits(afe->regmap, PWR2_TOP_CON1, msk);
+               break;
+       case SND_SOC_DAPM_PRE_PMD:
+               msk = AFE_DMIC_UL_SRC_CON0_UL_MODE_3P25M_CH1_CTL |
+                     AFE_DMIC_UL_SRC_CON0_UL_MODE_3P25M_CH2_CTL |
+                     AFE_DMIC_UL_SRC_CON0_UL_SRC_ON_TMP_CTL |
+                     AFE_DMIC_UL_SRC_CON0_UL_IIR_ON_TMP_CTL |
+                     AFE_DMIC_UL_SRC_CON0_UL_SDM_3_LEVEL_CTL;
+
+               for (i = dmic_num; i >= DMIC0; i--) {
+                       reg = get_dmic_ctrl_reg(i);
+                       if (reg)
+                               regmap_set_bits(afe->regmap, reg->con0, msk);
+               }
+               break;
+       case SND_SOC_DAPM_POST_PMD:
+               /* should delayed 1/fs(smallest is 8k) = 125us before afe off */
+               usleep_range(125, 126);
+
+               mt8188_afe_disable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_AFE_DMIC1]);
+               mt8188_afe_disable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_AFE_DMIC2]);
+               mt8188_afe_disable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_AFE_DMIC3]);
+               mt8188_afe_disable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_AFE_DMIC4]);
+
+               if (dmic_priv->hires_required) {
+                       mt8188_afe_disable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_DMIC_HIRES1]);
+                       mt8188_afe_disable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_DMIC_HIRES2]);
+                       mt8188_afe_disable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_DMIC_HIRES3]);
+                       mt8188_afe_disable_clk(afe, afe_priv->clk[MT8188_CLK_AUD_DMIC_HIRES4]);
+               }
+               break;
+       default:
+               break;
+       }
+
+       return 0;
+}
+
+static int mtk_dai_dmic_hw_params(struct snd_pcm_substream *substream,
+                                 struct snd_pcm_hw_params *params,
+                                 struct snd_soc_dai *dai)
+{
+       struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+       struct mt8188_afe_private *afe_priv = afe->platform_priv;
+       struct mtk_dai_dmic_priv *dmic_priv = afe_priv->dai_priv[MT8188_AFE_IO_DMIC_IN];
+       unsigned int rate = params_rate(params);
+       unsigned int channels = params_channels(params);
+       const struct mtk_dai_dmic_ctrl_reg *reg = NULL;
+       u32 val = AFE_DMIC_UL_SRC_CON0_UL_PHASE_SEL_CH1(CLK_PHASE_SEL_CH1) |
+                 AFE_DMIC_UL_SRC_CON0_UL_PHASE_SEL_CH2(CLK_PHASE_SEL_CH2) |
+                 AFE_DMIC_UL_SRC_CON0_UL_IIR_MODE_CTL(0);
+       const u32 msk = AFE_DMIC_UL_SRC_CON0_UL_TWO_WIRE_MODE_CTL |
+                       AFE_DMIC_UL_SRC_CON0_UL_PHASE_SEL_MASK |
+                       AFE_DMIC_UL_SRC_CON0_UL_IIR_MODE_CTL_MASK |
+                       AFE_DMIC_UL_VOICE_MODE_MASK;
+       u8 dmic_num;
+       int ret;
+       int i;
+
+       if (!channels || channels > 8)
+               return -EINVAL;
+
+       ret = mtk_dai_dmic_configure_array(dai);
+       if (ret < 0)
+               return ret;
+
+       ret = mtk_dai_dmic_load_iir_coeff_table(afe);
+       if (ret < 0)
+               return ret;
+
+       switch (rate) {
+       case 96000:
+               val |= AFE_DMIC_UL_CON0_VOCIE_MODE_96K;
+               dmic_priv->hires_required = 1;
+               break;
+       case 48000:
+               val |= AFE_DMIC_UL_CON0_VOCIE_MODE_48K;
+               dmic_priv->hires_required = 0;
+               break;
+       case 32000:
+               val |= AFE_DMIC_UL_CON0_VOCIE_MODE_32K;
+               dmic_priv->hires_required = 0;
+               break;
+       case 16000:
+               val |= AFE_DMIC_UL_CON0_VOCIE_MODE_16K;
+               dmic_priv->hires_required = 0;
+               break;
+       case 8000:
+               val |= AFE_DMIC_UL_CON0_VOCIE_MODE_8K;
+               dmic_priv->hires_required = 0;
+               break;
+       default:
+               dev_dbg(afe->dev, "%s invalid rate %u, use 48000Hz\n", __func__, rate);
+               val |= AFE_DMIC_UL_CON0_VOCIE_MODE_48K;
+               dmic_priv->hires_required = 0;
+               break;
+       }
+
+       dmic_num = mtk_dmic_channels_to_dmic_number(channels);
+       for (i = dmic_num; i >= DMIC0; i--) {
+               reg = get_dmic_ctrl_reg(i);
+               if (reg) {
+                       ret = regmap_update_bits(afe->regmap, reg->con0, msk, val);
+                       if (ret < 0)
+                               return ret;
+               }
+       }
+
+       dmic_priv->channels = channels;
+
+       return 0;
+}
+
+static const struct snd_soc_dai_ops mtk_dai_dmic_ops = {
+       .hw_params      = mtk_dai_dmic_hw_params,
+};
+
+#define MTK_DMIC_RATES (SNDRV_PCM_RATE_8000 |\
+                      SNDRV_PCM_RATE_16000 |\
+                      SNDRV_PCM_RATE_32000 |\
+                      SNDRV_PCM_RATE_48000 |\
+                      SNDRV_PCM_RATE_96000)
+
+#define MTK_DMIC_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
+                        SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_driver mtk_dai_dmic_driver[] = {
+       {
+               .name = "DMIC",
+               .id = MT8188_AFE_IO_DMIC_IN,
+               .capture = {
+                       .stream_name = "DMIC Capture",
+                       .channels_min = 1,
+                       .channels_max = 8,
+                       .rates = MTK_DMIC_RATES,
+                       .formats = MTK_DMIC_FORMATS,
+               },
+               .ops = &mtk_dai_dmic_ops,
+       },
+};
+
+static const struct snd_soc_dapm_widget mtk_dai_dmic_widgets[] = {
+       SND_SOC_DAPM_MIXER("I004", SND_SOC_NOPM, 0, 0, NULL, 0),
+       SND_SOC_DAPM_MIXER("I005", SND_SOC_NOPM, 0, 0, NULL, 0),
+       SND_SOC_DAPM_MIXER("I006", SND_SOC_NOPM, 0, 0, NULL, 0),
+       SND_SOC_DAPM_MIXER("I007", SND_SOC_NOPM, 0, 0, NULL, 0),
+       SND_SOC_DAPM_MIXER("I008", SND_SOC_NOPM, 0, 0, NULL, 0),
+       SND_SOC_DAPM_MIXER("I009", SND_SOC_NOPM, 0, 0, NULL, 0),
+       SND_SOC_DAPM_MIXER("I010", SND_SOC_NOPM, 0, 0, NULL, 0),
+       SND_SOC_DAPM_MIXER("I011", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+       SND_SOC_DAPM_SUPPLY_S("DMIC_GAIN_ON", SUPPLY_SEQ_DMIC_GAIN,
+                             SND_SOC_NOPM, 0, 0,
+                             mtk_dmic_gain_event,
+                             SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+       SND_SOC_DAPM_SUPPLY_S("DMIC_CK_ON", SUPPLY_SEQ_DMIC_CK,
+                             PWR2_TOP_CON1,
+                             PWR2_TOP_CON1_DMIC_CKDIV_ON_SHIFT, 0,
+                             mtk_dmic_event,
+                             SND_SOC_DAPM_PRE_POST_PMU |
+                             SND_SOC_DAPM_PRE_POST_PMD),
+       SND_SOC_DAPM_INPUT("DMIC_INPUT"),
+};
+
+static const struct snd_soc_dapm_route mtk_dai_dmic_routes[] = {
+       {"I004", NULL, "DMIC Capture"},
+       {"I005", NULL, "DMIC Capture"},
+       {"I006", NULL, "DMIC Capture"},
+       {"I007", NULL, "DMIC Capture"},
+       {"I008", NULL, "DMIC Capture"},
+       {"I009", NULL, "DMIC Capture"},
+       {"I010", NULL, "DMIC Capture"},
+       {"I011", NULL, "DMIC Capture"},
+       {"DMIC Capture", NULL, "DMIC_CK_ON"},
+       {"DMIC Capture", NULL, "DMIC_GAIN_ON"},
+       {"DMIC Capture", NULL, "DMIC_INPUT"},
+};
+
+static const char * const mt8188_dmic_gain_enable_text[] = {
+       "Bypass", "Connect",
+};
+
+static SOC_ENUM_SINGLE_EXT_DECL(dmic_gain_on_enum,
+                               mt8188_dmic_gain_enable_text);
+
+static int mtk_dai_dmic_hw_gain_ctrl_put(struct snd_kcontrol *kcontrol,
+                                        struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+       struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+       struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
+       struct mt8188_afe_private *afe_priv = afe->platform_priv;
+       struct mtk_dai_dmic_priv *dmic_priv = afe_priv->dai_priv[MT8188_AFE_IO_DMIC_IN];
+       unsigned int source = ucontrol->value.enumerated.item[0];
+       unsigned int *cached;
+
+       if (source >= e->items)
+               return -EINVAL;
+
+       if (!strcmp(kcontrol->id.name, "DMIC1_HW_GAIN_EN"))
+               cached = &dmic_priv->gain_on[0];
+       else if (!strcmp(kcontrol->id.name, "DMIC2_HW_GAIN_EN"))
+               cached = &dmic_priv->gain_on[1];
+       else if (!strcmp(kcontrol->id.name, "DMIC3_HW_GAIN_EN"))
+               cached = &dmic_priv->gain_on[2];
+       else if (!strcmp(kcontrol->id.name, "DMIC4_HW_GAIN_EN"))
+               cached = &dmic_priv->gain_on[3];
+       else
+               return -EINVAL;
+
+       if (source == *cached)
+               return 0;
+
+       *cached = source;
+       return 1;
+}
+
+static int mtk_dai_dmic_hw_gain_ctrl_get(struct snd_kcontrol *kcontrol,
+                                        struct snd_ctl_elem_value *ucontrol)
+{
+       struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+       struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
+       struct mt8188_afe_private *afe_priv = afe->platform_priv;
+       struct mtk_dai_dmic_priv *dmic_priv = afe_priv->dai_priv[MT8188_AFE_IO_DMIC_IN];
+       unsigned int val;
+
+       if (!strcmp(kcontrol->id.name, "DMIC1_HW_GAIN_EN"))
+               val = dmic_priv->gain_on[0];
+       else if (!strcmp(kcontrol->id.name, "DMIC2_HW_GAIN_EN"))
+               val = dmic_priv->gain_on[1];
+       else if (!strcmp(kcontrol->id.name, "DMIC3_HW_GAIN_EN"))
+               val = dmic_priv->gain_on[2];
+       else if (!strcmp(kcontrol->id.name, "DMIC4_HW_GAIN_EN"))
+               val = dmic_priv->gain_on[3];
+       else
+               return -EINVAL;
+
+       ucontrol->value.enumerated.item[0] = val;
+       return 0;
+}
+
+static const struct snd_kcontrol_new mtk_dai_dmic_controls[] = {
+       SOC_ENUM_EXT("DMIC1_HW_GAIN_EN", dmic_gain_on_enum,
+                    mtk_dai_dmic_hw_gain_ctrl_get,
+                    mtk_dai_dmic_hw_gain_ctrl_put),
+       SOC_ENUM_EXT("DMIC2_HW_GAIN_EN", dmic_gain_on_enum,
+                    mtk_dai_dmic_hw_gain_ctrl_get,
+                    mtk_dai_dmic_hw_gain_ctrl_put),
+       SOC_ENUM_EXT("DMIC3_HW_GAIN_EN", dmic_gain_on_enum,
+                    mtk_dai_dmic_hw_gain_ctrl_get,
+                    mtk_dai_dmic_hw_gain_ctrl_put),
+       SOC_ENUM_EXT("DMIC4_HW_GAIN_EN", dmic_gain_on_enum,
+                    mtk_dai_dmic_hw_gain_ctrl_get,
+                    mtk_dai_dmic_hw_gain_ctrl_put),
+       SOC_SINGLE("DMIC1_HW_GAIN_TARGET", DMIC_GAIN1_CON1,
+                  0, DMIC_GAIN_MAX_TARGET, 0),
+       SOC_SINGLE("DMIC2_HW_GAIN_TARGET", DMIC_GAIN2_CON1,
+                  0, DMIC_GAIN_MAX_TARGET, 0),
+       SOC_SINGLE("DMIC3_HW_GAIN_TARGET", DMIC_GAIN3_CON1,
+                  0, DMIC_GAIN_MAX_TARGET, 0),
+       SOC_SINGLE("DMIC4_HW_GAIN_TARGET", DMIC_GAIN4_CON1,
+                  0, DMIC_GAIN_MAX_TARGET, 0),
+       SOC_SINGLE("DMIC1_HW_GAIN_CURRENT", DMIC_GAIN1_CUR,
+                      0, DMIC_GAIN_MAX_CURRENT, 0),
+       SOC_SINGLE("DMIC2_HW_GAIN_CURRENT", DMIC_GAIN2_CUR,
+                      0, DMIC_GAIN_MAX_CURRENT, 0),
+       SOC_SINGLE("DMIC3_HW_GAIN_CURRENT", DMIC_GAIN3_CUR,
+                      0, DMIC_GAIN_MAX_CURRENT, 0),
+       SOC_SINGLE("DMIC4_HW_GAIN_CURRENT", DMIC_GAIN4_CUR,
+                      0, DMIC_GAIN_MAX_CURRENT, 0),
+       SOC_SINGLE("DMIC1_HW_GAIN_UP_STEP", DMIC_GAIN1_CON3,
+                  0, DMIC_GAIN_MAX_STEP, 0),
+       SOC_SINGLE("DMIC2_HW_GAIN_UP_STEP", DMIC_GAIN2_CON3,
+                  0, DMIC_GAIN_MAX_STEP, 0),
+       SOC_SINGLE("DMIC3_HW_GAIN_UP_STEP", DMIC_GAIN3_CON3,
+                  0, DMIC_GAIN_MAX_STEP, 0),
+       SOC_SINGLE("DMIC4_HW_GAIN_UP_STEP", DMIC_GAIN4_CON3,
+                  0, DMIC_GAIN_MAX_STEP, 0),
+       SOC_SINGLE("DMIC1_HW_GAIN_DOWN_STEP", DMIC_GAIN1_CON2,
+                  0, DMIC_GAIN_MAX_STEP, 0),
+       SOC_SINGLE("DMIC2_HW_GAIN_DOWN_STEP", DMIC_GAIN2_CON2,
+                  0, DMIC_GAIN_MAX_STEP, 0),
+       SOC_SINGLE("DMIC3_HW_GAIN_DOWN_STEP", DMIC_GAIN3_CON2,
+                  0, DMIC_GAIN_MAX_STEP, 0),
+       SOC_SINGLE("DMIC4_HW_GAIN_DOWN_STEP", DMIC_GAIN4_CON2,
+                  0, DMIC_GAIN_MAX_STEP, 0),
+       SOC_SINGLE("DMIC1_HW_GAIN_SAMPLE_PER_STEP", DMIC_GAIN1_CON0,
+                  DMIC_GAIN_CON0_SAMPLE_PER_STEP_SHIFT, DMIC_GAIN_MAX_PER_STEP, 0),
+       SOC_SINGLE("DMIC2_HW_GAIN_SAMPLE_PER_STEP", DMIC_GAIN2_CON0,
+                  DMIC_GAIN_CON0_SAMPLE_PER_STEP_SHIFT, DMIC_GAIN_MAX_PER_STEP, 0),
+       SOC_SINGLE("DMIC3_HW_GAIN_SAMPLE_PER_STEP", DMIC_GAIN3_CON0,
+                  DMIC_GAIN_CON0_SAMPLE_PER_STEP_SHIFT, DMIC_GAIN_MAX_PER_STEP, 0),
+       SOC_SINGLE("DMIC4_HW_GAIN_SAMPLE_PER_STEP", DMIC_GAIN4_CON0,
+                  DMIC_GAIN_CON0_SAMPLE_PER_STEP_SHIFT, DMIC_GAIN_MAX_PER_STEP, 0),
+};
+
+static int init_dmic_priv_data(struct mtk_base_afe *afe)
+{
+       struct mt8188_afe_private *afe_priv = afe->platform_priv;
+       struct mtk_dai_dmic_priv *dmic_priv;
+
+       dmic_priv = devm_kzalloc(afe->dev, sizeof(struct mtk_dai_dmic_priv),
+                                GFP_KERNEL);
+       if (!dmic_priv)
+               return -ENOMEM;
+
+       afe_priv->dai_priv[MT8188_AFE_IO_DMIC_IN] = dmic_priv;
+       return 0;
+}
+
+int mt8188_dai_dmic_register(struct mtk_base_afe *afe)
+{
+       struct mtk_base_afe_dai *dai;
+
+       dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);
+       if (!dai)
+               return -ENOMEM;
+
+       list_add(&dai->list, &afe->sub_dais);
+
+       dai->dai_drivers = mtk_dai_dmic_driver;
+       dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_dmic_driver);
+       dai->dapm_widgets = mtk_dai_dmic_widgets;
+       dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_dmic_widgets);
+       dai->dapm_routes = mtk_dai_dmic_routes;
+       dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_dmic_routes);
+       dai->controls = mtk_dai_dmic_controls;
+       dai->num_controls = ARRAY_SIZE(mtk_dai_dmic_controls);
+
+       return init_dmic_priv_data(afe);
+}
index bdd885419ff3874bab80549ea3ff4617172b8245..2e9c65de249da5227ee6f83daa7594a55bc8711c 100644 (file)
 #define PWR2_TOP_CON_DMIC3_SRC_SEL_MASK     GENMASK(16, 14)
 #define PWR2_TOP_CON_DMIC2_SRC_SEL_MASK     GENMASK(13, 11)
 #define PWR2_TOP_CON_DMIC1_SRC_SEL_MASK     GENMASK(10, 8)
+#define PWR2_TOP_CON_DMIC8_SRC_SEL_VAL(x)   ((x) << 29)
+#define PWR2_TOP_CON_DMIC7_SRC_SEL_VAL(x)   ((x) << 26)
+#define PWR2_TOP_CON_DMIC6_SRC_SEL_VAL(x)   ((x) << 23)
+#define PWR2_TOP_CON_DMIC5_SRC_SEL_VAL(x)   ((x) << 20)
+#define PWR2_TOP_CON_DMIC4_SRC_SEL_VAL(x)   ((x) << 17)
+#define PWR2_TOP_CON_DMIC3_SRC_SEL_VAL(x)   ((x) << 14)
+#define PWR2_TOP_CON_DMIC2_SRC_SEL_VAL(x)   ((x) << 11)
+#define PWR2_TOP_CON_DMIC1_SRC_SEL_VAL(x)   ((x) << 8)
 
 /* PWR2_TOP_CON1 */
-#define PWR2_TOP_CON1_DMIC_CKDIV_ON        BIT(1)
+#define PWR2_TOP_CON1_DMIC_FIFO_SOFT_RST_EN(x) BIT(5 + 6 * (x))
+#define PWR2_TOP_CON1_DMIC_CKDIV_ON             BIT(1)
+#define PWR2_TOP_CON1_DMIC_CKDIV_ON_SHIFT       1
+
 
 /* PCM_INTF_CON1 */
 #define PCM_INTF_CON1_SYNC_OUT_INV     BIT(23)
 #define AFE_DMIC_UL_SRC_CON0_UL_TWO_WIRE_MODE_CTL      BIT(23)
 #define AFE_DMIC_UL_SRC_CON0_UL_MODE_3P25M_CH2_CTL     BIT(22)
 #define AFE_DMIC_UL_SRC_CON0_UL_MODE_3P25M_CH1_CTL     BIT(21)
-
+#define AFE_DMIC_UL_VOICE_MODE(x)                      (((x) & GENMASK(2, 0)) << 17)
 #define AFE_DMIC_UL_VOICE_MODE_MASK                    GENMASK(19, 17)
 #define AFE_DMIC_UL_CON0_VOCIE_MODE_8K                 AFE_DMIC_UL_VOICE_MODE(0)
 #define AFE_DMIC_UL_CON0_VOCIE_MODE_16K                        AFE_DMIC_UL_VOICE_MODE(1)
 #define AFE_DMIC_UL_CON0_VOCIE_MODE_32K                        AFE_DMIC_UL_VOICE_MODE(2)
 #define AFE_DMIC_UL_CON0_VOCIE_MODE_48K                        AFE_DMIC_UL_VOICE_MODE(3)
 #define AFE_DMIC_UL_CON0_VOCIE_MODE_96K                        AFE_DMIC_UL_VOICE_MODE(4)
+#define AFE_DMIC_UL_SRC_CON0_UL_IIR_MODE_CTL(x)                (((x) & GENMASK(2, 0)) << 7)
 #define AFE_DMIC_UL_SRC_CON0_UL_IIR_MODE_CTL_MASK      GENMASK(9, 7)
 #define AFE_DMIC_UL_SRC_CON0_UL_IIR_ON_TMP_CTL         BIT(10)
 #define AFE_DMIC_UL_SRC_CON0_UL_SDM_3_LEVEL_CTL                BIT(1)
 
 /* DMIC_GAINx_CON0 */
 #define DMIC_GAIN_CON0_GAIN_ON                 BIT(0)
+#define DMIC_GAIN_CON0_SAMPLE_PER_STEP_SHIFT   8
 #define DMIC_GAIN_CON0_SAMPLE_PER_STEP_MASK    GENMASK(15, 8)
 
 /* DMIC_GAINx_CON1 */