ASoC: add mt6351 codec driver

This patch adds the MediaTek MT6351 codec driver.
MT6351 communicate with SoC through MediaTek PMIC wrapper.
MT6351 use MediaTek proprietary audio interface.

Signed-off-by: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/mt6351.txt

@@ -0,0 +1,16 @@
+Mediatek MT6351 Audio Codec
+
+The communication between MT6351 and SoC is through Mediatek PMIC wrapper.
+For more detail, please visit Mediatek PMIC wrapper documentation.
+
+Must be a child node of PMIC wrapper.
+
+Required properties:
+
+- compatible : "mediatek,mt6351-sound".
+
+Example:
+
+mt6351_snd {
+	compatible = "mediatek,mt6351-sound";
+};

sound/soc/codecs/Kconfig

@@ -106,6 +106,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_MAX9877 if I2C
 	select SND_SOC_MC13783 if MFD_MC13XXX
 	select SND_SOC_ML26124 if I2C
+	select SND_SOC_MT6351 if MTK_PMIC_WRAP
 	select SND_SOC_NAU8540 if I2C
 	select SND_SOC_NAU8810 if I2C
 	select SND_SOC_NAU8824 if I2C
@@ -1259,6 +1260,9 @@ config SND_SOC_MC13783
 config SND_SOC_ML26124
 	tristate
 
+config SND_SOC_MT6351
+	tristate "MediaTek MT6351 Codec"
+
 config SND_SOC_NAU8540
        tristate "Nuvoton Technology Corporation NAU85L40 CODEC"
        depends on I2C

sound/soc/codecs/Makefile

@@ -102,6 +102,7 @@ snd-soc-mc13783-objs := mc13783.o
 snd-soc-ml26124-objs := ml26124.o
 snd-soc-msm8916-analog-objs := msm8916-wcd-analog.o
 snd-soc-msm8916-digital-objs := msm8916-wcd-digital.o
+snd-soc-mt6351-objs := mt6351.o
 snd-soc-nau8540-objs := nau8540.o
 snd-soc-nau8810-objs := nau8810.o
 snd-soc-nau8824-objs := nau8824.o
@@ -357,6 +358,7 @@ obj-$(CONFIG_SND_SOC_MC13783)	+= snd-soc-mc13783.o
 obj-$(CONFIG_SND_SOC_ML26124)	+= snd-soc-ml26124.o
 obj-$(CONFIG_SND_SOC_MSM8916_WCD_ANALOG) +=snd-soc-msm8916-analog.o
 obj-$(CONFIG_SND_SOC_MSM8916_WCD_DIGITAL) +=snd-soc-msm8916-digital.o
+obj-$(CONFIG_SND_SOC_MT6351)	+= snd-soc-mt6351.o
 obj-$(CONFIG_SND_SOC_NAU8540)   += snd-soc-nau8540.o
 obj-$(CONFIG_SND_SOC_NAU8810)   += snd-soc-nau8810.o
 obj-$(CONFIG_SND_SOC_NAU8824)   += snd-soc-nau8824.o

sound/soc/codecs/mt6351.h

@@ -0,0 +1,105 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * mt6351.h  --  mt6351 ALSA SoC audio codec driver
+ *
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
+ */
+
+#ifndef __MT6351_H__
+#define __MT6351_H__
+
+#define MT6351_AFE_UL_DL_CON0               (0x2000 + 0x0000)
+#define MT6351_AFE_DL_SRC2_CON0_H           (0x2000 + 0x0002)
+#define MT6351_AFE_DL_SRC2_CON0_L           (0x2000 + 0x0004)
+#define MT6351_AFE_DL_SDM_CON0              (0x2000 + 0x0006)
+#define MT6351_AFE_DL_SDM_CON1              (0x2000 + 0x0008)
+#define MT6351_AFE_UL_SRC_CON0_H            (0x2000 + 0x000a)
+#define MT6351_AFE_UL_SRC_CON0_L            (0x2000 + 0x000c)
+#define MT6351_AFE_UL_SRC_CON1_H            (0x2000 + 0x000e)
+#define MT6351_AFE_UL_SRC_CON1_L            (0x2000 + 0x0010)
+#define MT6351_AFE_TOP_CON0                 (0x2000 + 0x0012)
+#define MT6351_AUDIO_TOP_CON0               (0x2000 + 0x0014)
+#define MT6351_AFE_DL_SRC_MON0              (0x2000 + 0x0016)
+#define MT6351_AFE_DL_SDM_TEST0             (0x2000 + 0x0018)
+#define MT6351_AFE_MON_DEBUG0               (0x2000 + 0x001a)
+#define MT6351_AFUNC_AUD_CON0               (0x2000 + 0x001c)
+#define MT6351_AFUNC_AUD_CON1               (0x2000 + 0x001e)
+#define MT6351_AFUNC_AUD_CON2               (0x2000 + 0x0020)
+#define MT6351_AFUNC_AUD_CON3               (0x2000 + 0x0022)
+#define MT6351_AFUNC_AUD_CON4               (0x2000 + 0x0024)
+#define MT6351_AFUNC_AUD_MON0               (0x2000 + 0x0026)
+#define MT6351_AFUNC_AUD_MON1               (0x2000 + 0x0028)
+#define MT6351_AFE_UP8X_FIFO_CFG0           (0x2000 + 0x002c)
+#define MT6351_AFE_UP8X_FIFO_LOG_MON0       (0x2000 + 0x002e)
+#define MT6351_AFE_UP8X_FIFO_LOG_MON1       (0x2000 + 0x0030)
+#define MT6351_AFE_DL_DC_COMP_CFG0          (0x2000 + 0x0032)
+#define MT6351_AFE_DL_DC_COMP_CFG1          (0x2000 + 0x0034)
+#define MT6351_AFE_DL_DC_COMP_CFG2          (0x2000 + 0x0036)
+#define MT6351_AFE_PMIC_NEWIF_CFG0          (0x2000 + 0x0038)
+#define MT6351_AFE_PMIC_NEWIF_CFG1          (0x2000 + 0x003a)
+#define MT6351_AFE_PMIC_NEWIF_CFG2          (0x2000 + 0x003c)
+#define MT6351_AFE_PMIC_NEWIF_CFG3          (0x2000 + 0x003e)
+#define MT6351_AFE_SGEN_CFG0                (0x2000 + 0x0040)
+#define MT6351_AFE_SGEN_CFG1                (0x2000 + 0x0042)
+#define MT6351_AFE_ADDA2_UP8X_FIFO_LOG_MON0 (0x2000 + 0x004c)
+#define MT6351_AFE_ADDA2_UP8X_FIFO_LOG_MON1 (0x2000 + 0x004e)
+#define MT6351_AFE_ADDA2_PMIC_NEWIF_CFG0    (0x2000 + 0x0050)
+#define MT6351_AFE_ADDA2_PMIC_NEWIF_CFG1    (0x2000 + 0x0052)
+#define MT6351_AFE_ADDA2_PMIC_NEWIF_CFG2    (0x2000 + 0x0054)
+#define MT6351_AFE_DCCLK_CFG0               (0x2000 + 0x0090)
+#define MT6351_AFE_DCCLK_CFG1               (0x2000 + 0x0092)
+#define MT6351_AFE_HPANC_CFG0               (0x2000 + 0x0094)
+#define MT6351_AFE_NCP_CFG0                 (0x2000 + 0x0096)
+#define MT6351_AFE_NCP_CFG1                 (0x2000 + 0x0098)
+
+#define MT6351_TOP_CKPDN_CON0      0x023A
+#define MT6351_TOP_CKPDN_CON0_SET  0x023C
+#define MT6351_TOP_CKPDN_CON0_CLR  0x023E
+
+#define MT6351_TOP_CLKSQ           0x029A
+#define MT6351_TOP_CLKSQ_SET       0x029C
+#define MT6351_TOP_CLKSQ_CLR       0x029E
+
+#define MT6351_ZCD_CON0            0x0800
+#define MT6351_ZCD_CON1            0x0802
+#define MT6351_ZCD_CON2            0x0804
+#define MT6351_ZCD_CON3            0x0806
+#define MT6351_ZCD_CON4            0x0808
+#define MT6351_ZCD_CON5            0x080A
+
+#define MT6351_LDO_VA18_CON0       0x0A00
+#define MT6351_LDO_VA18_CON1       0x0A02
+#define MT6351_LDO_VUSB33_CON0     0x0A16
+#define MT6351_LDO_VUSB33_CON1     0x0A18
+
+#define MT6351_AUDDEC_ANA_CON0     0x0CF2
+#define MT6351_AUDDEC_ANA_CON1     0x0CF4
+#define MT6351_AUDDEC_ANA_CON2     0x0CF6
+#define MT6351_AUDDEC_ANA_CON3     0x0CF8
+#define MT6351_AUDDEC_ANA_CON4     0x0CFA
+#define MT6351_AUDDEC_ANA_CON5     0x0CFC
+#define MT6351_AUDDEC_ANA_CON6     0x0CFE
+#define MT6351_AUDDEC_ANA_CON7     0x0D00
+#define MT6351_AUDDEC_ANA_CON8     0x0D02
+#define MT6351_AUDDEC_ANA_CON9     0x0D04
+#define MT6351_AUDDEC_ANA_CON10    0x0D06
+
+#define MT6351_AUDENC_ANA_CON0     0x0D08
+#define MT6351_AUDENC_ANA_CON1     0x0D0A
+#define MT6351_AUDENC_ANA_CON2     0x0D0C
+#define MT6351_AUDENC_ANA_CON3     0x0D0E
+#define MT6351_AUDENC_ANA_CON4     0x0D10
+#define MT6351_AUDENC_ANA_CON5     0x0D12
+#define MT6351_AUDENC_ANA_CON6     0x0D14
+#define MT6351_AUDENC_ANA_CON7     0x0D16
+#define MT6351_AUDENC_ANA_CON8     0x0D18
+#define MT6351_AUDENC_ANA_CON9     0x0D1A
+#define MT6351_AUDENC_ANA_CON10    0x0D1C
+#define MT6351_AUDENC_ANA_CON11    0x0D1E
+#define MT6351_AUDENC_ANA_CON12    0x0D20
+#define MT6351_AUDENC_ANA_CON13    0x0D22
+#define MT6351_AUDENC_ANA_CON14    0x0D24
+#define MT6351_AUDENC_ANA_CON15    0x0D26
+#define MT6351_AUDENC_ANA_CON16    0x0D28
+#endif