Add audio support for the MediaTek Genio 350-evk

Merge series from Alexandre Mergnat <amergnat@baylibre.com>:

This serie aim to add the following audio support for the Genio 350-evk:
- Playback
  - 2ch Headset Jack (Earphone)
  - 1ch Line-out Jack (Speaker)
  - 8ch HDMI Tx
- Capture
  - 1ch DMIC (On-board Digital Microphone)
  - 1ch AMIC (On-board Analogic Microphone)
  - 1ch Headset Jack (External Analogic Microphone)

Of course, HDMI playback need the MT8365 display patches [1] and a DTS
change documented in "mediatek,mt8365-mt6357.yaml".

Applied patch:
- mfd: mt6397-core: register mt6357 sound codec

Test passed:
- mixer-test log: [3]
- pcm-test log: [4]

[1]: https://lore.kernel.org/all/20231023-display-support-v1-0-5c860ed5c33b@baylibre.com/
[2]: https://lore.kernel.org/all/20240313110147.1267793-1-angelogioacchino.delregno@collabora.com/
[3]: https://pastebin.com/pc43AVrT
[4]: https://pastebin.com/cCtGhDpg
[5]: https://gitlab.baylibre.com/baylibre/mediatek/bsp/linux/-/commits/sound/for-next/add-i350-audio-support

Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml

@@ -37,6 +37,24 @@ properties:
   "#interrupt-cells":
     const: 2
 
+  mediatek,hp-pull-down:
+    description:
+      Earphone driver positive output stage short to
+      the audio reference ground.
+    type: boolean
+
+  mediatek,micbias0-microvolt:
+    description: Selects MIC Bias 0 output voltage.
+    enum: [1700000, 1800000, 1900000, 2000000,
+           2100000, 2500000, 2600000, 2700000]
+    default: 1700000
+
+  mediatek,micbias1-microvolt:
+    description: Selects MIC Bias 1 output voltage.
+    enum: [1700000, 1800000, 1900000, 2000000,
+           2100000, 2500000, 2600000, 2700000]
+    default: 1700000
+
   regulators:
     type: object
     $ref: /schemas/regulator/mediatek,mt6357-regulator.yaml
@@ -83,6 +101,9 @@ examples:
             interrupt-controller;
             #interrupt-cells = <2>;
 
+            mediatek,micbias0-microvolt = <1700000>;
+            mediatek,micbias1-microvolt = <1700000>;
+
             regulators {
                 mt6357_vproc_reg: buck-vproc {
                     regulator-name = "vproc";

Documentation/devicetree/bindings/sound/mediatek,mt8365-afe.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mediatek,mt8365-afe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Audio Front End PCM controller for MT8365
+
+maintainers:
+  - Alexandre Mergnat <amergnat@baylibre.com>
+
+properties:
+  compatible:
+    const: mediatek,mt8365-afe-pcm
+
+  reg:
+    maxItems: 1
+
+  "#sound-dai-cells":
+    const: 0
+
+  clocks:
+    items:
+      - description: 26M clock
+      - description: mux for audio clock
+      - description: audio i2s0 mck
+      - description: audio i2s1 mck
+      - description: audio i2s2 mck
+      - description: audio i2s3 mck
+      - description: engen 1 clock
+      - description: engen 2 clock
+      - description: audio 1 clock
+      - description: audio 2 clock
+      - description: mux for i2s0
+      - description: mux for i2s1
+      - description: mux for i2s2
+      - description: mux for i2s3
+
+  clock-names:
+    items:
+      - const: top_clk26m_clk
+      - const: top_audio_sel
+      - const: audio_i2s0_m
+      - const: audio_i2s1_m
+      - const: audio_i2s2_m
+      - const: audio_i2s3_m
+      - const: engen1
+      - const: engen2
+      - const: aud1
+      - const: aud2
+      - const: i2s0_m_sel
+      - const: i2s1_m_sel
+      - const: i2s2_m_sel
+      - const: i2s3_m_sel
+
+  interrupts:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  mediatek,dmic-mode:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Indicates how many data pins are used to transmit two channels of PDM
+      signal. 1 means two wires, 0 means one wire. Default value is 0.
+    enum:
+      - 0 # one wire
+      - 1 # two wires
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - power-domains
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mediatek,mt8365-clk.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/power/mediatek,mt8365-power.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        audio-controller@11220000 {
+            compatible = "mediatek,mt8365-afe-pcm";
+            reg = <0 0x11220000 0 0x1000>;
+            #sound-dai-cells = <0>;
+            clocks = <&clk26m>,
+                     <&topckgen CLK_TOP_AUDIO_SEL>,
+                     <&topckgen CLK_TOP_AUD_I2S0_M>,
+                     <&topckgen CLK_TOP_AUD_I2S1_M>,
+                     <&topckgen CLK_TOP_AUD_I2S2_M>,
+                     <&topckgen CLK_TOP_AUD_I2S3_M>,
+                     <&topckgen CLK_TOP_AUD_ENGEN1_SEL>,
+                     <&topckgen CLK_TOP_AUD_ENGEN2_SEL>,
+                     <&topckgen CLK_TOP_AUD_1_SEL>,
+                     <&topckgen CLK_TOP_AUD_2_SEL>,
+                     <&topckgen CLK_TOP_APLL_I2S0_SEL>,
+                     <&topckgen CLK_TOP_APLL_I2S1_SEL>,
+                     <&topckgen CLK_TOP_APLL_I2S2_SEL>,
+                     <&topckgen CLK_TOP_APLL_I2S3_SEL>;
+            clock-names = "top_clk26m_clk",
+                          "top_audio_sel",
+                          "audio_i2s0_m",
+                          "audio_i2s1_m",
+                          "audio_i2s2_m",
+                          "audio_i2s3_m",
+                          "engen1",
+                          "engen2",
+                          "aud1",
+                          "aud2",
+                          "i2s0_m_sel",
+                          "i2s1_m_sel",
+                          "i2s2_m_sel",
+                          "i2s3_m_sel";
+            interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_LOW>;
+            power-domains = <&spm MT8365_POWER_DOMAIN_AUDIO>;
+            mediatek,dmic-mode = <1>;
+        };
+    };
+
+...

Documentation/devicetree/bindings/sound/mediatek,mt8365-mt6357.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mediatek,mt8365-mt6357.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT8365 ASoC sound card
+
+maintainers:
+  - Alexandre Mergnat <amergnat@baylibre.com>
+
+properties:
+  compatible:
+    const: mediatek,mt8365-mt6357
+
+  pinctrl-names:
+    minItems: 1
+    items:
+      - const: default
+      - const: dmic
+      - const: miso_off
+      - const: miso_on
+      - const: mosi_off
+      - const: mosi_on
+
+  mediatek,platform:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: The phandle of MT8365 ASoC platform.
+
+patternProperties:
+  "^dai-link-[0-9]+$":
+    type: object
+    description:
+      Container for dai-link level properties and CODEC sub-nodes.
+
+    properties:
+      codec:
+        type: object
+        description: Holds subnode which indicates codec dai.
+
+        properties:
+          sound-dai:
+            maxItems: 1
+            description: phandle of the codec DAI
+
+        additionalProperties: false
+
+      link-name:
+        description: Indicates dai-link name and PCM stream name
+        enum:
+          - I2S_IN_BE
+          - I2S_OUT_BE
+          - PCM1_BE
+          - PDM1_BE
+          - PDM2_BE
+          - PDM3_BE
+          - PDM4_BE
+          - SPDIF_IN_BE
+          - SPDIF_OUT_BE
+          - TDM_IN_BE
+          - TDM_OUT_BE
+
+      sound-dai:
+        maxItems: 1
+        description: phandle of the CPU DAI
+
+    required:
+      - link-name
+      - sound-dai
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - pinctrl-names
+  - mediatek,platform
+
+additionalProperties: false
+
+examples:
+  - |
+    sound {
+        compatible = "mediatek,mt8365-mt6357";
+        pinctrl-names = "default",
+                        "dmic",
+                        "miso_off",
+                        "miso_on",
+                        "mosi_off",
+                        "mosi_on";
+        pinctrl-0 = <&aud_default_pins>;
+        pinctrl-1 = <&aud_dmic_pins>;
+        pinctrl-2 = <&aud_miso_off_pins>;
+        pinctrl-3 = <&aud_miso_on_pins>;
+        pinctrl-4 = <&aud_mosi_off_pins>;
+        pinctrl-5 = <&aud_mosi_on_pins>;
+        mediatek,platform = <&afe>;
+
+        /* hdmi interface */
+        dai-link-0 {
+            link-name = "I2S_OUT_BE";
+            sound-dai = <&afe>;
+
+            codec {
+                sound-dai = <&it66121hdmitx>;
+            };
+        };
+    };

sound/soc/mediatek/mt8365/mt8365-afe-clk.h

+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * MediaTek 8365 AFE clock control definitions
+ *
+ * Copyright (c) 2024 MediaTek Inc.
+ * Authors: Jia Zeng <jia.zeng@mediatek.com>
+ *          Alexandre Mergnat <amergnat@baylibre.com>
+ */
+
+#ifndef _MT8365_AFE_UTILS_H_
+#define _MT8365_AFE_UTILS_H_
+
+struct mtk_base_afe;
+struct clk;
+
+int mt8365_afe_init_audio_clk(struct mtk_base_afe *afe);
+void mt8365_afe_disable_clk(struct mtk_base_afe *afe, struct clk *clk);
+int mt8365_afe_set_clk_rate(struct mtk_base_afe *afe, struct clk *clk, unsigned int rate);
+int mt8365_afe_set_clk_parent(struct mtk_base_afe *afe, struct clk *clk, struct clk *parent);
+int mt8365_afe_enable_top_cg(struct mtk_base_afe *afe, unsigned int cg_type);
+int mt8365_afe_disable_top_cg(struct mtk_base_afe *afe, unsigned int cg_type);
+int mt8365_afe_enable_main_clk(struct mtk_base_afe *afe);
+int mt8365_afe_disable_main_clk(struct mtk_base_afe *afe);
+int mt8365_afe_emi_clk_on(struct mtk_base_afe *afe);
+int mt8365_afe_emi_clk_off(struct mtk_base_afe *afe);
+int mt8365_afe_enable_afe_on(struct mtk_base_afe *afe);
+int mt8365_afe_disable_afe_on(struct mtk_base_afe *afe);
+int mt8365_afe_enable_apll_tuner_cfg(struct mtk_base_afe *afe, unsigned int apll);
+int mt8365_afe_disable_apll_tuner_cfg(struct mtk_base_afe *afe, unsigned int apll);
+int mt8365_afe_enable_apll_associated_cfg(struct mtk_base_afe *afe, unsigned int apll);
+int mt8365_afe_disable_apll_associated_cfg(struct mtk_base_afe *afe, unsigned int apll);
+#endif

sound/soc/mediatek/mt8365/mt8365-afe-common.h

+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * MediaTek 8365 audio driver common definitions
+ *
+ * Copyright (c) 2024 MediaTek Inc.
+ * Authors: Jia Zeng <jia.zeng@mediatek.com>
+ *          Alexandre Mergnat <amergnat@baylibre.com>
+ */
+
+#ifndef _MT8365_AFE_COMMON_H_
+#define _MT8365_AFE_COMMON_H_
+
+#include <linux/clk.h>
+#include <linux/list.h>
+#include <linux/regmap.h>
+#include <sound/soc.h>
+#include <sound/asound.h>
+#include "../common/mtk-base-afe.h"
+#include "mt8365-reg.h"
+
+enum {
+	MT8365_AFE_MEMIF_DL1,
+	MT8365_AFE_MEMIF_DL2,
+	MT8365_AFE_MEMIF_TDM_OUT,
+	/*
+	 * MT8365_AFE_MEMIF_SPDIF_OUT,
+	 */
+	MT8365_AFE_MEMIF_AWB,
+	MT8365_AFE_MEMIF_VUL,
+	MT8365_AFE_MEMIF_VUL2,
+	MT8365_AFE_MEMIF_VUL3,
+	MT8365_AFE_MEMIF_TDM_IN,
+	/*
+	 * MT8365_AFE_MEMIF_SPDIF_IN,
+	 */
+	MT8365_AFE_MEMIF_NUM,
+	MT8365_AFE_BACKEND_BASE = MT8365_AFE_MEMIF_NUM,
+	MT8365_AFE_IO_TDM_OUT = MT8365_AFE_BACKEND_BASE,
+	MT8365_AFE_IO_TDM_IN,
+	MT8365_AFE_IO_I2S,
+	MT8365_AFE_IO_2ND_I2S,
+	MT8365_AFE_IO_PCM1,
+	MT8365_AFE_IO_VIRTUAL_DL_SRC,
+	MT8365_AFE_IO_VIRTUAL_TDM_OUT_SRC,
+	MT8365_AFE_IO_VIRTUAL_FM,
+	MT8365_AFE_IO_DMIC,
+	MT8365_AFE_IO_INT_ADDA,
+	MT8365_AFE_IO_GASRC1,
+	MT8365_AFE_IO_GASRC2,
+	MT8365_AFE_IO_TDM_ASRC,
+	MT8365_AFE_IO_HW_GAIN1,
+	MT8365_AFE_IO_HW_GAIN2,
+	MT8365_AFE_BACKEND_END,
+	MT8365_AFE_BACKEND_NUM = (MT8365_AFE_BACKEND_END -
+				  MT8365_AFE_BACKEND_BASE),
+};
+
+enum {
+	MT8365_AFE_IRQ1,
+	MT8365_AFE_IRQ2,
+	MT8365_AFE_IRQ3,
+	MT8365_AFE_IRQ4,
+	MT8365_AFE_IRQ5,
+	MT8365_AFE_IRQ6,
+	MT8365_AFE_IRQ7,
+	MT8365_AFE_IRQ8,
+	MT8365_AFE_IRQ9,
+	MT8365_AFE_IRQ10,
+	MT8365_AFE_IRQ_NUM,
+};
+
+enum {
+	MT8365_TOP_CG_AFE,
+	MT8365_TOP_CG_I2S_IN,
+	MT8365_TOP_CG_22M,
+	MT8365_TOP_CG_24M,
+	MT8365_TOP_CG_INTDIR_CK,
+	MT8365_TOP_CG_APLL2_TUNER,
+	MT8365_TOP_CG_APLL_TUNER,
+	MT8365_TOP_CG_SPDIF,
+	MT8365_TOP_CG_TDM_OUT,
+	MT8365_TOP_CG_TDM_IN,
+	MT8365_TOP_CG_ADC,
+	MT8365_TOP_CG_DAC,
+	MT8365_TOP_CG_DAC_PREDIS,
+	MT8365_TOP_CG_TML,
+	MT8365_TOP_CG_I2S1_BCLK,
+	MT8365_TOP_CG_I2S2_BCLK,
+	MT8365_TOP_CG_I2S3_BCLK,
+	MT8365_TOP_CG_I2S4_BCLK,
+	MT8365_TOP_CG_DMIC0_ADC,
+	MT8365_TOP_CG_DMIC1_ADC,
+	MT8365_TOP_CG_DMIC2_ADC,
+	MT8365_TOP_CG_DMIC3_ADC,
+	MT8365_TOP_CG_CONNSYS_I2S_ASRC,
+	MT8365_TOP_CG_GENERAL1_ASRC,
+	MT8365_TOP_CG_GENERAL2_ASRC,
+	MT8365_TOP_CG_TDM_ASRC,
+	MT8365_TOP_CG_NUM
+};
+
+enum {
+	MT8365_CLK_TOP_AUD_SEL,
+	MT8365_CLK_AUD_I2S0_M,
+	MT8365_CLK_AUD_I2S1_M,
+	MT8365_CLK_AUD_I2S2_M,
+	MT8365_CLK_AUD_I2S3_M,
+	MT8365_CLK_ENGEN1,
+	MT8365_CLK_ENGEN2,
+	MT8365_CLK_AUD1,
+	MT8365_CLK_AUD2,
+	MT8365_CLK_I2S0_M_SEL,
+	MT8365_CLK_I2S1_M_SEL,
+	MT8365_CLK_I2S2_M_SEL,
+	MT8365_CLK_I2S3_M_SEL,
+	MT8365_CLK_CLK26M,
+	MT8365_CLK_NUM
+};
+
+enum {
+	MT8365_AFE_APLL1 = 0,
+	MT8365_AFE_APLL2,
+	MT8365_AFE_APLL_NUM,
+};
+
+enum {
+	MT8365_AFE_1ST_I2S = 0,
+	MT8365_AFE_2ND_I2S,
+	MT8365_AFE_I2S_SETS,
+};
+
+enum {
+	MT8365_AFE_I2S_SEPARATE_CLOCK = 0,
+	MT8365_AFE_I2S_SHARED_CLOCK,
+};
+
+enum {
+	MT8365_AFE_TDM_OUT_I2S = 0,
+	MT8365_AFE_TDM_OUT_TDM,
+	MT8365_AFE_TDM_OUT_I2S_32BITS,
+};
+
+enum mt8365_afe_tdm_ch_start {
+	AFE_TDM_CH_START_O28_O29 = 0,
+	AFE_TDM_CH_START_O30_O31,
+	AFE_TDM_CH_START_O32_O33,
+	AFE_TDM_CH_START_O34_O35,
+	AFE_TDM_CH_ZERO,
+};
+
+enum {
+	MT8365_PCM_FORMAT_I2S = 0,
+	MT8365_PCM_FORMAT_EIAJ,
+	MT8365_PCM_FORMAT_PCMA,
+	MT8365_PCM_FORMAT_PCMB,
+};
+
+enum {
+	MT8365_FS_8K = 0,
+	MT8365_FS_11D025K,
+	MT8365_FS_12K,
+	MT8365_FS_384K,
+	MT8365_FS_16K,
+	MT8365_FS_22D05K,
+	MT8365_FS_24K,
+	MT8365_FS_130K,
+	MT8365_FS_32K,
+	MT8365_FS_44D1K,
+	MT8365_FS_48K,
+	MT8365_FS_88D2K,
+	MT8365_FS_96K,
+	MT8365_FS_176D4K,
+	MT8365_FS_192K,
+};
+
+enum {
+	FS_8000HZ  = 0, /* 0000b */
+	FS_11025HZ = 1, /* 0001b */
+	FS_12000HZ = 2, /* 0010b */
+	FS_384000HZ = 3, /* 0011b */
+	FS_16000HZ = 4, /* 0100b */
+	FS_22050HZ = 5, /* 0101b */
+	FS_24000HZ = 6, /* 0110b */
+	FS_130000HZ = 7, /* 0111b */
+	FS_32000HZ = 8, /* 1000b */
+	FS_44100HZ = 9, /* 1001b */
+	FS_48000HZ = 10, /* 1010b */
+	FS_88200HZ = 11, /* 1011b */
+	FS_96000HZ = 12, /* 1100b */
+	FS_176400HZ = 13, /* 1101b */
+	FS_192000HZ = 14, /* 1110b */
+	FS_260000HZ = 15, /* 1111b */
+};
+
+enum {
+	MT8365_AFE_DEBUGFS_AFE,
+	MT8365_AFE_DEBUGFS_MEMIF,
+	MT8365_AFE_DEBUGFS_IRQ,
+	MT8365_AFE_DEBUGFS_CONN,
+	MT8365_AFE_DEBUGFS_DBG,
+	MT8365_AFE_DEBUGFS_NUM,
+};
+
+enum {
+	MT8365_AFE_IRQ_DIR_MCU = 0,
+	MT8365_AFE_IRQ_DIR_DSP,
+	MT8365_AFE_IRQ_DIR_BOTH,
+};
+
+/* MCLK */
+enum {
+	MT8365_I2S0_MCK = 0,
+	MT8365_I2S3_MCK,
+	MT8365_MCK_NUM,
+};
+
+struct mt8365_fe_dai_data {
+	bool use_sram;
+	unsigned int sram_phy_addr;
+	void __iomem *sram_vir_addr;
+	unsigned int sram_size;
+};
+
+struct mt8365_be_dai_data {
+	bool prepared[SNDRV_PCM_STREAM_LAST + 1];
+	unsigned int fmt_mode;
+};
+
+#define MT8365_CLK_26M 26000000
+#define MT8365_CLK_24M 24000000
+#define MT8365_CLK_22M 22000000
+#define MT8365_CM_UPDATA_CNT_SET 8
+
+enum mt8365_cm_num {
+	MT8365_CM1 = 0,
+	MT8365_CM2,
+	MT8365_CM_NUM,
+};
+
+enum mt8365_cm2_mux_in {
+	MT8365_FROM_GASRC1 = 1,
+	MT8365_FROM_GASRC2,
+	MT8365_FROM_TDM_ASRC,
+	MT8365_CM_MUX_NUM,
+};
+
+enum cm2_mux_conn_in {
+	GENERAL2_ASRC_OUT_LCH = 0,
+	GENERAL2_ASRC_OUT_RCH = 1,
+	TDM_IN_CH0 = 2,
+	TDM_IN_CH1 = 3,
+	TDM_IN_CH2 = 4,
+	TDM_IN_CH3 = 5,
+	TDM_IN_CH4 = 6,
+	TDM_IN_CH5 = 7,
+	TDM_IN_CH6 = 8,
+	TDM_IN_CH7 = 9,
+	GENERAL1_ASRC_OUT_LCH = 10,
+	GENERAL1_ASRC_OUT_RCH = 11,
+	TDM_OUT_ASRC_CH0 = 12,
+	TDM_OUT_ASRC_CH1 = 13,
+	TDM_OUT_ASRC_CH2 = 14,
+	TDM_OUT_ASRC_CH3 = 15,
+	TDM_OUT_ASRC_CH4 = 16,
+	TDM_OUT_ASRC_CH5 = 17,
+	TDM_OUT_ASRC_CH6 = 18,
+	TDM_OUT_ASRC_CH7 = 19
+};
+
+struct mt8365_cm_ctrl_reg {
+	unsigned int con0;
+	unsigned int con1;
+	unsigned int con2;
+	unsigned int con3;
+	unsigned int con4;
+};
+
+struct mt8365_control_data {
+	bool bypass_cm1;
+	bool bypass_cm2;
+	unsigned int loopback_type;
+};
+
+enum dmic_input_mode {
+	DMIC_MODE_3P25M = 0,
+	DMIC_MODE_1P625M,
+	DMIC_MODE_812P5K,
+	DMIC_MODE_406P25K,
+};
+
+enum iir_mode {
+	IIR_MODE0 = 0,
+	IIR_MODE1,
+	IIR_MODE2,
+	IIR_MODE3,
+	IIR_MODE4,
+	IIR_MODE5,
+};
+
+enum {
+	MT8365_GASRC1 = 0,
+	MT8365_GASRC2,
+	MT8365_GASRC_NUM,
+	MT8365_TDM_ASRC1 = MT8365_GASRC_NUM,
+	MT8365_TDM_ASRC2,
+	MT8365_TDM_ASRC3,
+	MT8365_TDM_ASRC4,
+	MT8365_TDM_ASRC_NUM,
+};
+
+struct mt8365_gasrc_ctrl_reg {
+	unsigned int con0;
+	unsigned int con2;
+	unsigned int con3;
+	unsigned int con4;
+	unsigned int con5;
+	unsigned int con6;
+	unsigned int con9;
+	unsigned int con10;
+	unsigned int con12;
+	unsigned int con13;
+};
+
+struct mt8365_gasrc_data {
+	bool duplex;
+	bool tx_mode;
+	bool cali_on;
+	bool tdm_asrc_out_cm2;
+	bool iir_on;
+};
+
+struct mt8365_afe_private {
+	struct clk *clocks[MT8365_CLK_NUM];
+	struct regmap *topckgen;
+	struct mt8365_fe_dai_data fe_data[MT8365_AFE_MEMIF_NUM];
+	struct mt8365_be_dai_data be_data[MT8365_AFE_BACKEND_NUM];
+	struct mt8365_control_data ctrl_data;
+	struct mt8365_gasrc_data gasrc_data[MT8365_TDM_ASRC_NUM];
+	int afe_on_ref_cnt;
+	int top_cg_ref_cnt[MT8365_TOP_CG_NUM];
+	void __iomem *afe_sram_vir_addr;
+	unsigned int afe_sram_phy_addr;
+	unsigned int afe_sram_size;
+	/* locks */
+	spinlock_t afe_ctrl_lock;
+	struct mutex afe_clk_mutex;	/* Protect & sync APLL TUNER registers access*/
+#ifdef CONFIG_DEBUG_FS
+	struct dentry *debugfs_dentry[MT8365_AFE_DEBUGFS_NUM];
+#endif
+	int apll_tuner_ref_cnt[MT8365_AFE_APLL_NUM];
+	unsigned int tdm_out_mode;
+	unsigned int cm2_mux_input;
+
+	/* dai */
+	bool dai_on[MT8365_AFE_BACKEND_END];
+	void *dai_priv[MT8365_AFE_BACKEND_END];
+};
+
+static inline u32 rx_frequency_palette(unsigned int fs)
+{
+	/* *
+	 * A = (26M / fs) * 64
+	 * B = 8125 / A
+	 * return = DEC2HEX(B * 2^23)
+	 */
+	switch (fs) {
+	case FS_8000HZ:		return 0x050000;
+	case FS_11025HZ:	return 0x06E400;
+	case FS_12000HZ:	return 0x078000;
+	case FS_16000HZ:	return 0x0A0000;
+	case FS_22050HZ:	return 0x0DC800;
+	case FS_24000HZ:	return 0x0F0000;
+	case FS_32000HZ:	return 0x140000;
+	case FS_44100HZ:	return 0x1B9000;
+	case FS_48000HZ:	return 0x1E0000;
+	case FS_88200HZ:	return 0x372000;
+	case FS_96000HZ:	return 0x3C0000;
+	case FS_176400HZ:	return 0x6E4000;
+	case FS_192000HZ:	return 0x780000;
+	default:		return 0x0;
+	}
+}
+
+static inline u32 AutoRstThHi(unsigned int fs)
+{
+	switch (fs) {
+	case FS_8000HZ:		return 0x36000;
+	case FS_11025HZ:	return 0x27000;
+	case FS_12000HZ:	return 0x24000;
+	case FS_16000HZ:	return 0x1B000;
+	case FS_22050HZ:	return 0x14000;
+	case FS_24000HZ:	return 0x12000;
+	case FS_32000HZ:	return 0x0D800;
+	case FS_44100HZ:	return 0x09D00;
+	case FS_48000HZ:	return 0x08E00;
+	case FS_88200HZ:	return 0x04E00;
+	case FS_96000HZ:	return 0x04800;
+	case FS_176400HZ:	return 0x02700;
+	case FS_192000HZ:	return 0x02400;
+	default:		return 0x0;
+	}
+}
+
+static inline u32 AutoRstThLo(unsigned int fs)
+{
+	switch (fs) {
+	case FS_8000HZ:		return 0x30000;
+	case FS_11025HZ:	return 0x23000;
+	case FS_12000HZ:	return 0x20000;
+	case FS_16000HZ:	return 0x18000;
+	case FS_22050HZ:	return 0x11000;
+	case FS_24000HZ:	return 0x0FE00;
+	case FS_32000HZ:	return 0x0BE00;
+	case FS_44100HZ:	return 0x08A00;
+	case FS_48000HZ:	return 0x07F00;
+	case FS_88200HZ:	return 0x04500;
+	case FS_96000HZ:	return 0x04000;
+	case FS_176400HZ:	return 0x02300;
+	case FS_192000HZ:	return 0x02000;
+	default:		return 0x0;
+	}
+}
+
+bool mt8365_afe_clk_group_48k(int sample_rate);
+bool mt8365_afe_rate_supported(unsigned int rate, unsigned int id);
+bool mt8365_afe_channel_supported(unsigned int channel, unsigned int id);
+
+int mt8365_dai_i2s_register(struct mtk_base_afe *afe);
+int mt8365_dai_set_priv(struct mtk_base_afe *afe,
+			int id,
+			int priv_size,
+			const void *priv_data);
+
+int mt8365_afe_fs_timing(unsigned int rate);
+
+void mt8365_afe_set_i2s_out_enable(struct mtk_base_afe *afe, bool enable);
+int mt8365_afe_set_i2s_out(struct mtk_base_afe *afe, unsigned int rate,	int bit_width);
+
+int mt8365_dai_adda_register(struct mtk_base_afe *afe);
+int mt8365_dai_enable_adda_on(struct mtk_base_afe *afe);
+int mt8365_dai_disable_adda_on(struct mtk_base_afe *afe);
+
+int mt8365_dai_dmic_register(struct mtk_base_afe *afe);
+
+int mt8365_dai_pcm_register(struct mtk_base_afe *afe);
+
+int mt8365_dai_tdm_register(struct mtk_base_afe *afe);
+
+#endif

sound/soc/mediatek/mt8365/mt8365-dai-adda.c

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MediaTek 8365 ALSA SoC Audio DAI ADDA Control
+ *
+ * Copyright (c) 2024 MediaTek Inc.
+ * Authors: Jia Zeng <jia.zeng@mediatek.com>
+ *          Alexandre Mergnat <amergnat@baylibre.com>
+ */
+
+#include <linux/bitops.h>
+#include <linux/regmap.h>
+#include <sound/pcm_params.h>
+#include "mt8365-afe-clk.h"
+#include "mt8365-afe-common.h"
+#include "../common/mtk-dai-adda-common.h"
+
+static int adda_afe_on_ref_cnt;
+
+/* DAI Drivers */
+
+static int mt8365_dai_set_adda_out(struct mtk_base_afe *afe, unsigned int rate)
+{
+	unsigned int val;
+
+	if (rate == 8000 || rate == 16000)
+		val = AFE_ADDA_DL_VOICE_DATA;
+	else
+		val = 0;
+
+	val |= FIELD_PREP(AFE_ADDA_DL_SAMPLING_RATE,
+		mtk_adda_dl_rate_transform(afe, rate));
+	val |= AFE_ADDA_DL_8X_UPSAMPLE |
+	       AFE_ADDA_DL_MUTE_OFF_CH1 |
+	       AFE_ADDA_DL_MUTE_OFF_CH2 |
+	       AFE_ADDA_DL_DEGRADE_GAIN;
+
+	regmap_update_bits(afe->regmap, AFE_ADDA_PREDIS_CON0, 0xffffffff, 0);
+	regmap_update_bits(afe->regmap, AFE_ADDA_PREDIS_CON1, 0xffffffff, 0);
+	regmap_update_bits(afe->regmap, AFE_ADDA_DL_SRC2_CON0, 0xffffffff, val);
+	/* SA suggest apply -0.3db to audio/speech path */
+	regmap_update_bits(afe->regmap, AFE_ADDA_DL_SRC2_CON1,
+			   0xffffffff, 0xf74f0000);
+	/* SA suggest use default value for sdm */
+	regmap_update_bits(afe->regmap, AFE_ADDA_DL_SDM_DCCOMP_CON,
+			   0xffffffff, 0x0700701e);
+
+	return 0;
+}
+
+static int mt8365_dai_set_adda_in(struct mtk_base_afe *afe, unsigned int rate)
+{
+	unsigned int val;
+
+	val = FIELD_PREP(AFE_ADDA_UL_SAMPLING_RATE,
+			 mtk_adda_ul_rate_transform(afe, rate));
+	regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0,
+			   AFE_ADDA_UL_SAMPLING_RATE, val);
+	/* Using Internal ADC */
+	regmap_update_bits(afe->regmap, AFE_ADDA_TOP_CON0, 0x1, 0x0);
+
+	return 0;
+}
+
+int mt8365_dai_enable_adda_on(struct mtk_base_afe *afe)
+{
+	unsigned long flags;
+	struct mt8365_afe_private *afe_priv = afe->platform_priv;
+
+	spin_lock_irqsave(&afe_priv->afe_ctrl_lock, flags);
+
+	adda_afe_on_ref_cnt++;
+	if (adda_afe_on_ref_cnt == 1)
+		regmap_update_bits(afe->regmap, AFE_ADDA_UL_DL_CON0,
+				   AFE_ADDA_UL_DL_ADDA_AFE_ON,
+				   AFE_ADDA_UL_DL_ADDA_AFE_ON);
+
+	spin_unlock_irqrestore(&afe_priv->afe_ctrl_lock, flags);
+
+	return 0;
+}
+
+int mt8365_dai_disable_adda_on(struct mtk_base_afe *afe)
+{
+	unsigned long flags;
+	struct mt8365_afe_private *afe_priv = afe->platform_priv;
+
+	spin_lock_irqsave(&afe_priv->afe_ctrl_lock, flags);
+
+	adda_afe_on_ref_cnt--;
+	if (adda_afe_on_ref_cnt == 0)
+		regmap_update_bits(afe->regmap, AFE_ADDA_UL_DL_CON0,
+				   AFE_ADDA_UL_DL_ADDA_AFE_ON,
+				   ~AFE_ADDA_UL_DL_ADDA_AFE_ON);
+	else if (adda_afe_on_ref_cnt < 0) {
+		adda_afe_on_ref_cnt = 0;
+		dev_warn(afe->dev, "Abnormal adda_on ref count. Force it to 0\n");
+	}
+
+	spin_unlock_irqrestore(&afe_priv->afe_ctrl_lock, flags);
+
+	return 0;
+}
+
+static void mt8365_dai_set_adda_out_enable(struct mtk_base_afe *afe,
+					   bool enable)
+{
+	regmap_update_bits(afe->regmap, AFE_ADDA_DL_SRC2_CON0, 0x1, enable);
+
+	if (enable)
+		mt8365_dai_enable_adda_on(afe);
+	else
+		mt8365_dai_disable_adda_on(afe);
+}
+
+static void mt8365_dai_set_adda_in_enable(struct mtk_base_afe *afe, bool enable)
+{
+	if (enable) {
+		regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0, 0x1, 0x1);
+		mt8365_dai_enable_adda_on(afe);
+		/* enable aud_pad_top fifo */
+		regmap_update_bits(afe->regmap, AFE_AUD_PAD_TOP,
+				   0xffffffff, 0x31);
+	} else {
+		/* disable aud_pad_top fifo */
+		regmap_update_bits(afe->regmap, AFE_AUD_PAD_TOP,
+				   0xffffffff, 0x30);
+		regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0, 0x1, 0x0);
+		/* de suggest disable ADDA_UL_SRC at least wait 125us */
+		usleep_range(150, 300);
+		mt8365_dai_disable_adda_on(afe);
+	}
+}
+
+static int mt8365_dai_int_adda_startup(struct snd_pcm_substream *substream,
+				       struct snd_soc_dai *dai)
+{
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+	unsigned int stream = substream->stream;
+
+	mt8365_afe_enable_main_clk(afe);
+
+	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_DAC);
+		mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_DAC_PREDIS);
+	} else if (stream == SNDRV_PCM_STREAM_CAPTURE) {
+		mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_ADC);
+	}
+
+	return 0;
+}
+
+static void mt8365_dai_int_adda_shutdown(struct snd_pcm_substream *substream,
+					 struct snd_soc_dai *dai)
+{
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+	struct mt8365_afe_private *afe_priv = afe->platform_priv;
+	struct mt8365_be_dai_data *be =
+		&afe_priv->be_data[dai->id - MT8365_AFE_BACKEND_BASE];
+	unsigned int stream = substream->stream;
+
+	if (be->prepared[stream]) {
+		if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+			mt8365_dai_set_adda_out_enable(afe, false);
+			mt8365_afe_set_i2s_out_enable(afe, false);
+		} else {
+			mt8365_dai_set_adda_in_enable(afe, false);
+		}
+		be->prepared[stream] = false;
+	}
+
+	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_DAC_PREDIS);
+		mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_DAC);
+	} else if (stream == SNDRV_PCM_STREAM_CAPTURE) {
+		mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_ADC);
+	}
+
+	mt8365_afe_disable_main_clk(afe);
+}
+
+static int mt8365_dai_int_adda_prepare(struct snd_pcm_substream *substream,
+				       struct snd_soc_dai *dai)
+{
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+	struct mt8365_afe_private *afe_priv = afe->platform_priv;
+	struct mt8365_be_dai_data *be =
+		&afe_priv->be_data[dai->id - MT8365_AFE_BACKEND_BASE];
+	unsigned int rate = substream->runtime->rate;
+	int bit_width = snd_pcm_format_width(substream->runtime->format);
+	int ret;
+
+	dev_info(afe->dev, "%s '%s' rate = %u\n", __func__,
+		 snd_pcm_stream_str(substream), rate);
+
+	if (be->prepared[substream->stream]) {
+		dev_info(afe->dev, "%s '%s' prepared already\n",
+			 __func__, snd_pcm_stream_str(substream));
+		return 0;
+	}
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		ret = mt8365_dai_set_adda_out(afe, rate);
+		if (ret)
+			return ret;
+
+		ret = mt8365_afe_set_i2s_out(afe, rate, bit_width);
+		if (ret)
+			return ret;
+
+		mt8365_dai_set_adda_out_enable(afe, true);
+		mt8365_afe_set_i2s_out_enable(afe, true);
+	} else {
+		ret = mt8365_dai_set_adda_in(afe, rate);
+		if (ret)
+			return ret;
+
+		mt8365_dai_set_adda_in_enable(afe, true);
+	}
+	be->prepared[substream->stream] = true;
+	return 0;
+}
+
+static const struct snd_soc_dai_ops mt8365_afe_int_adda_ops = {
+	.startup	= mt8365_dai_int_adda_startup,
+	.shutdown	= mt8365_dai_int_adda_shutdown,
+	.prepare	= mt8365_dai_int_adda_prepare,
+};
+
+static struct snd_soc_dai_driver mtk_dai_adda_driver[] = {
+	{
+		.name = "INT ADDA",
+		.id = MT8365_AFE_IO_INT_ADDA,
+		.playback = {
+			.stream_name = "INT ADDA Playback",
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_8000_48000,
+			.formats = SNDRV_PCM_FMTBIT_S16_LE,
+		},
+		.capture = {
+			.stream_name = "INT ADDA Capture",
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_16000 |
+				 SNDRV_PCM_RATE_32000 |
+				 SNDRV_PCM_RATE_48000,
+			.formats = SNDRV_PCM_FMTBIT_S16_LE |
+				   SNDRV_PCM_FMTBIT_S32_LE,
+		},
+		.ops = &mt8365_afe_int_adda_ops,
+	}
+};
+
+/* DAI Controls */
+
+static const struct snd_kcontrol_new mtk_adda_dl_ch1_mix[] = {
+	SOC_DAPM_SINGLE_AUTODISABLE("GAIN1_OUT_CH1 Switch", AFE_CONN3,
+				    10, 1, 0),
+};
+
+static const struct snd_kcontrol_new mtk_adda_dl_ch2_mix[] = {
+	SOC_DAPM_SINGLE_AUTODISABLE("GAIN1_OUT_CH2 Switch", AFE_CONN4,
+				    11, 1, 0),
+};
+
+static const struct snd_kcontrol_new int_adda_o03_o04_enable_ctl =
+	SOC_DAPM_SINGLE_VIRT("Switch", 1);
+
+/* DAI widget */
+
+static const struct snd_soc_dapm_widget mtk_dai_adda_widgets[] = {
+	SND_SOC_DAPM_SWITCH("INT ADDA O03_O04", SND_SOC_NOPM, 0, 0,
+			    &int_adda_o03_o04_enable_ctl),
+	/* inter-connections */
+	SND_SOC_DAPM_MIXER("ADDA_DL_CH1", SND_SOC_NOPM, 0, 0,
+			   mtk_adda_dl_ch1_mix,
+			   ARRAY_SIZE(mtk_adda_dl_ch1_mix)),
+	SND_SOC_DAPM_MIXER("ADDA_DL_CH2", SND_SOC_NOPM, 0, 0,
+			   mtk_adda_dl_ch2_mix,
+			   ARRAY_SIZE(mtk_adda_dl_ch2_mix)),
+};
+
+/* DAI route */
+
+static const struct snd_soc_dapm_route mtk_dai_adda_routes[] = {
+	{"INT ADDA O03_O04", "Switch", "O03"},
+	{"INT ADDA O03_O04", "Switch", "O04"},
+	{"INT ADDA Playback", NULL, "INT ADDA O03_O04"},
+	{"INT ADDA Playback", NULL, "ADDA_DL_CH1"},
+	{"INT ADDA Playback", NULL, "ADDA_DL_CH2"},
+	{"AIN Mux", "INT ADC", "INT ADDA Capture"},
+	{"ADDA_DL_CH1", "GAIN1_OUT_CH1", "Hostless FM DL"},
+	{"ADDA_DL_CH2", "GAIN1_OUT_CH2", "Hostless FM DL"},
+};
+
+int mt8365_dai_adda_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_adda_driver;
+	dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_adda_driver);
+	dai->dapm_widgets = mtk_dai_adda_widgets;
+	dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_adda_widgets);
+	dai->dapm_routes = mtk_dai_adda_routes;
+	dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_adda_routes);
+	return 0;
+}

sound/soc/mediatek/mt8365/mt8365-dai-dmic.c

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MediaTek 8365 ALSA SoC Audio DAI DMIC Control
+ *
+ * Copyright (c) 2024 MediaTek Inc.
+ * Authors: Jia Zeng <jia.zeng@mediatek.com>
+ *          Alexandre Mergnat <amergnat@baylibre.com>
+ */
+
+#include <linux/bitops.h>
+#include <linux/regmap.h>
+#include <sound/pcm_params.h>
+#include "mt8365-afe-clk.h"
+#include "mt8365-afe-common.h"
+
+struct mt8365_dmic_data {
+	bool two_wire_mode;
+	unsigned int clk_phase_sel_ch1;
+	unsigned int clk_phase_sel_ch2;
+	bool iir_on;
+	unsigned int irr_mode;
+	unsigned int dmic_mode;
+	unsigned int dmic_channel;
+};
+
+static int get_chan_reg(unsigned int channel)
+{
+	switch (channel) {
+	case 8:
+		fallthrough;
+	case 7:
+		return AFE_DMIC3_UL_SRC_CON0;
+	case 6:
+		fallthrough;
+	case 5:
+		return AFE_DMIC2_UL_SRC_CON0;
+	case 4:
+		fallthrough;
+	case 3:
+		return AFE_DMIC1_UL_SRC_CON0;
+	case 2:
+		fallthrough;
+	case 1:
+		return AFE_DMIC0_UL_SRC_CON0;
+	default:
+		return -EINVAL;
+	}
+}
+
+/* DAI Drivers */
+
+static void audio_dmic_adda_enable(struct mtk_base_afe *afe)
+{
+	mt8365_dai_enable_adda_on(afe);
+	regmap_update_bits(afe->regmap, AFE_ADDA_UL_DL_CON0,
+			   AFE_ADDA_UL_DL_DMIC_CLKDIV_ON,
+			   AFE_ADDA_UL_DL_DMIC_CLKDIV_ON);
+}
+
+static void audio_dmic_adda_disable(struct mtk_base_afe *afe)
+{
+	regmap_update_bits(afe->regmap, AFE_ADDA_UL_DL_CON0,
+			   AFE_ADDA_UL_DL_DMIC_CLKDIV_ON,
+			   ~AFE_ADDA_UL_DL_DMIC_CLKDIV_ON);
+	mt8365_dai_disable_adda_on(afe);
+}
+
+static void mt8365_dai_enable_dmic(struct mtk_base_afe *afe,
+				   struct snd_pcm_substream *substream,
+				   struct snd_soc_dai *dai)
+{
+	struct mt8365_afe_private *afe_priv = afe->platform_priv;
+	struct mt8365_dmic_data *dmic_data = afe_priv->dai_priv[MT8365_AFE_IO_DMIC];
+	unsigned int val_mask;
+	int reg = get_chan_reg(dmic_data->dmic_channel);
+
+	if (reg < 0)
+		return;
+
+	/* val and mask will be always same to enable */
+	val_mask = DMIC_TOP_CON_CH1_ON |
+		   DMIC_TOP_CON_CH2_ON |
+		   DMIC_TOP_CON_SRC_ON;
+
+	regmap_update_bits(afe->regmap, reg, val_mask, val_mask);
+}
+
+static void mt8365_dai_disable_dmic(struct mtk_base_afe *afe,
+				    struct snd_pcm_substream *substream,
+				    struct snd_soc_dai *dai)
+{
+	struct mt8365_afe_private *afe_priv = afe->platform_priv;
+	struct mt8365_dmic_data *dmic_data = afe_priv->dai_priv[MT8365_AFE_IO_DMIC];
+	unsigned int mask;
+	int reg = get_chan_reg(dmic_data->dmic_channel);
+
+	if (reg < 0)
+		return;
+
+	dev_dbg(afe->dev, "%s dmic_channel %d\n", __func__, dmic_data->dmic_channel);
+
+	mask = DMIC_TOP_CON_CH1_ON |
+	       DMIC_TOP_CON_CH2_ON |
+	       DMIC_TOP_CON_SRC_ON |
+	       DMIC_TOP_CON_SDM3_LEVEL_MODE;
+
+	/* Set all masked values to 0 */
+	regmap_update_bits(afe->regmap, reg, mask, 0);
+}
+
+static const struct reg_sequence mt8365_dmic_iir_coeff[] = {
+	{ 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 mt8365_dai_load_dmic_iir_coeff_table(struct mtk_base_afe *afe)
+{
+	return regmap_multi_reg_write(afe->regmap,
+				      mt8365_dmic_iir_coeff,
+				      ARRAY_SIZE(mt8365_dmic_iir_coeff));
+}
+
+static int mt8365_dai_configure_dmic(struct mtk_base_afe *afe,
+				     struct snd_pcm_substream *substream,
+				     struct snd_soc_dai *dai)
+{
+	struct mt8365_afe_private *afe_priv = afe->platform_priv;
+	struct mt8365_dmic_data *dmic_data = afe_priv->dai_priv[MT8365_AFE_IO_DMIC];
+	bool two_wire_mode = dmic_data->two_wire_mode;
+	unsigned int clk_phase_sel_ch1 = dmic_data->clk_phase_sel_ch1;
+	unsigned int clk_phase_sel_ch2 = dmic_data->clk_phase_sel_ch2;
+	unsigned int val = 0;
+	unsigned int rate = dai->rate;
+	int reg = get_chan_reg(dai->channels);
+
+	if (reg < 0)
+		return -EINVAL;
+
+	dmic_data->dmic_channel = dai->channels;
+
+	val |= DMIC_TOP_CON_SDM3_LEVEL_MODE;
+
+	if (two_wire_mode) {
+		val |= DMIC_TOP_CON_TWO_WIRE_MODE;
+	} else {
+		val |= FIELD_PREP(DMIC_TOP_CON_CK_PHASE_SEL_CH1,
+				  clk_phase_sel_ch1);
+		val |= FIELD_PREP(DMIC_TOP_CON_CK_PHASE_SEL_CH2,
+				  clk_phase_sel_ch2);
+	}
+
+	switch (rate) {
+	case 48000:
+		val |= DMIC_TOP_CON_VOICE_MODE_48K;
+		break;
+	case 32000:
+		val |= DMIC_TOP_CON_VOICE_MODE_32K;
+		break;
+	case 16000:
+		val |= DMIC_TOP_CON_VOICE_MODE_16K;
+		break;
+	case 8000:
+		val |= DMIC_TOP_CON_VOICE_MODE_8K;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	regmap_update_bits(afe->regmap, reg, DMIC_TOP_CON_CONFIG_MASK, val);
+
+	return 0;
+}
+
+static int mt8365_dai_dmic_startup(struct snd_pcm_substream *substream,
+				   struct snd_soc_dai *dai)
+{
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+
+	mt8365_afe_enable_main_clk(afe);
+
+	mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_DMIC0_ADC);
+	mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_DMIC1_ADC);
+	mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_DMIC2_ADC);
+	mt8365_afe_enable_top_cg(afe, MT8365_TOP_CG_DMIC3_ADC);
+
+	audio_dmic_adda_enable(afe);
+
+	return 0;
+}
+
+static void mt8365_dai_dmic_shutdown(struct snd_pcm_substream *substream,
+				     struct snd_soc_dai *dai)
+{
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+
+	mt8365_dai_disable_dmic(afe, substream, dai);
+	audio_dmic_adda_disable(afe);
+	/* HW Request delay 125us before CG off */
+	usleep_range(125, 300);
+	mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_DMIC3_ADC);
+	mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_DMIC2_ADC);
+	mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_DMIC1_ADC);
+	mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_DMIC0_ADC);
+
+	mt8365_afe_disable_main_clk(afe);
+}
+
+static int mt8365_dai_dmic_prepare(struct snd_pcm_substream *substream,
+				   struct snd_soc_dai *dai)
+{
+	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+
+	mt8365_dai_configure_dmic(afe, substream, dai);
+	mt8365_dai_enable_dmic(afe, substream, dai);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops mt8365_afe_dmic_ops = {
+	.startup	= mt8365_dai_dmic_startup,
+	.shutdown	= mt8365_dai_dmic_shutdown,
+	.prepare	= mt8365_dai_dmic_prepare,
+};
+
+static struct snd_soc_dai_driver mtk_dai_dmic_driver[] = {
+	{
+		.name = "DMIC",
+		.id = MT8365_AFE_IO_DMIC,
+		.capture = {
+			.stream_name = "DMIC Capture",
+			.channels_min = 1,
+			.channels_max = 8,
+			.rates = SNDRV_PCM_RATE_16000 |
+				 SNDRV_PCM_RATE_32000 |
+				 SNDRV_PCM_RATE_48000,
+			.formats = SNDRV_PCM_FMTBIT_S16_LE |
+				   SNDRV_PCM_FMTBIT_S32_LE,
+		},
+		.ops = &mt8365_afe_dmic_ops,
+	}
+};
+
+/* DAI Controls */
+
+/* Values for 48kHz mode */
+static const char * const iir_mode_src[] = {
+	"SW custom", "5Hz", "10Hz", "25Hz", "50Hz", "65Hz"
+};
+
+static SOC_ENUM_SINGLE_DECL(iir_mode, AFE_DMIC0_UL_SRC_CON0, 7, iir_mode_src);
+
+static const struct snd_kcontrol_new mtk_dai_dmic_controls[] = {
+	SOC_SINGLE("DMIC IIR Switch", AFE_DMIC0_UL_SRC_CON0, DMIC_TOP_CON_IIR_ON, 1, 0),
+	SOC_ENUM("DMIC IIR Mode", iir_mode),
+};
+
+/* DAI widget */
+
+static const struct snd_soc_dapm_widget mtk_dai_dmic_widgets[] = {
+	SND_SOC_DAPM_INPUT("DMIC In"),
+};
+
+/* DAI route */
+
+static const struct snd_soc_dapm_route mtk_dai_dmic_routes[] = {
+	{"I14", NULL, "DMIC Capture"},
+	{"I15", NULL, "DMIC Capture"},
+	{"I16", NULL, "DMIC Capture"},
+	{"I17", NULL, "DMIC Capture"},
+	{"I18", NULL, "DMIC Capture"},
+	{"I19", NULL, "DMIC Capture"},
+	{"I20", NULL, "DMIC Capture"},
+	{"I21", NULL, "DMIC Capture"},
+	{"DMIC Capture", NULL, "DMIC In"},
+};
+
+static int init_dmic_priv_data(struct mtk_base_afe *afe)
+{
+	struct mt8365_afe_private *afe_priv = afe->platform_priv;
+	struct mt8365_dmic_data *dmic_priv;
+	struct device_node *np = afe->dev->of_node;
+	unsigned int temps[4];
+	int ret;
+
+	dmic_priv = devm_kzalloc(afe->dev, sizeof(*dmic_priv), GFP_KERNEL);
+	if (!dmic_priv)
+		return -ENOMEM;
+
+	ret = of_property_read_u32_array(np, "mediatek,dmic-mode",
+					 &temps[0],
+					 1);
+	if (ret == 0)
+		dmic_priv->two_wire_mode = !!temps[0];
+
+	if (!dmic_priv->two_wire_mode) {
+		dmic_priv->clk_phase_sel_ch1 = 0;
+		dmic_priv->clk_phase_sel_ch2 = 4;
+	}
+
+	afe_priv->dai_priv[MT8365_AFE_IO_DMIC] = dmic_priv;
+	return 0;
+}
+
+int mt8365_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->controls = mtk_dai_dmic_controls;
+	dai->num_controls = ARRAY_SIZE(mtk_dai_dmic_controls);
+	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);
+	return init_dmic_priv_data(afe);
+}