LF-4175-5: ASoC: rpmsg_ak4497: support ak4497 over rpmsg

The difference of rpmsg_ak4497 and ak4497 driver is first one
will send command through rpmsg, second one send command through
i2c.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Peng Zhang <peng.zhang_8@nxp.com>

sound/soc/codecs/Kconfig

@@ -281,6 +281,7 @@ config SND_SOC_ALL_CODECS
 	imply SND_SOC_ZL38060
 	imply SND_SOC_RPMSG_WM8960
 	imply SND_SOC_RPMSG_WM8960_I2C
+	imply SND_SOC_RPMSG_AK4497
 	help
 	  Normally ASoC codec drivers are only built if a machine driver which
 	  uses them is also built since they are only usable with a machine
@@ -1719,6 +1720,8 @@ config SND_SOC_RPMSG_WM8960
 config SND_SOC_RPMSG_WM8960_I2C
 	tristate "RPMSG WM8960 I2C Driver"
 
+config SND_SOC_RPMSG_AK4497
+	tristate "RPMSG AK4497 Platform Driver"
 # Amp
 config SND_SOC_LM4857
 	tristate

sound/soc/codecs/Makefile

@@ -299,6 +299,7 @@ snd-soc-zl38060-objs := zl38060.o
 snd-soc-zx-aud96p22-objs := zx_aud96p22.o
 snd-soc-rpmsg-wm8960-objs := rpmsg_wm8960.o
 snd-soc-rpmsg-wm8960-i2c-objs := rpmsg_wm8960_i2c.o
+snd-soc-rpmsg-ak4497-objs := rpmsg_ak4497.o
 
 # Amp
 snd-soc-max9877-objs := max9877.o
@@ -612,6 +613,7 @@ obj-$(CONFIG_SND_SOC_ZL38060)	+= snd-soc-zl38060.o
 obj-$(CONFIG_SND_SOC_ZX_AUD96P22) += snd-soc-zx-aud96p22.o
 obj-$(CONFIG_SND_SOC_RPMSG_WM8960)	+= snd-soc-rpmsg-wm8960.o
 obj-$(CONFIG_SND_SOC_RPMSG_WM8960_I2C)	+= snd-soc-rpmsg-wm8960-i2c.o
+obj-$(CONFIG_SND_SOC_RPMSG_AK4497)	+= snd-soc-rpmsg-ak4497.o
 
 # Amp
 obj-$(CONFIG_SND_SOC_MAX9877)	+= snd-soc-max9877.o

sound/soc/codecs/rpmsg_ak4497.h

+/*
+ * ak4497.h  --  audio driver for ak4497
+ *
+ * Copyright (C) 2016 Asahi Kasei Microdevices Corporation
+ * Copyright (C) 2017, NXP
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+#ifndef _RPMSG_AK4497_H
+#define _RPMSG_AK4497_H
+
+#define AK4497_00_CONTROL1          0x00
+#define AK4497_01_CONTROL2          0x01
+#define AK4497_02_CONTROL3          0x02
+#define AK4497_03_LCHATT            0x03
+#define AK4497_04_RCHATT            0x04
+#define AK4497_05_CONTROL4          0x05
+#define AK4497_06_DSD1              0x06
+#define AK4497_07_CONTROL5          0x07
+#define AK4497_08_SOUNDCONTROL      0x08
+#define AK4497_09_DSD2              0x09
+#define AK4497_0A_CONTROL7          0x0A
+#define AK4497_0B_CONTROL8          0x0B
+#define AK4497_0C_RESERVED          0x0C
+#define AK4497_0D_RESERVED          0x0D
+#define AK4497_0E_RESERVED          0x0E
+#define AK4497_0F_RESERVED          0x0F
+#define AK4497_10_RESERVED          0x10
+#define AK4497_11_RESERVED          0x11
+#define AK4497_12_RESERVED          0x12
+#define AK4497_13_RESERVED          0x13
+#define AK4497_14_RESERVED          0x14
+#define AK4497_15_DFSREAD           0x15
+
+
+#define AK4497_MAX_REGISTERS	(AK4497_15_DFSREAD)
+
+/* Bitfield Definitions */
+
+/* AK4497_00_CONTROL1 (0x00) Fields */
+#define AK4497_DIF					0x0E
+#define AK4497_DIF_MSB_MODE	    (2 << 1)
+#define AK4497_DIF_I2S_MODE     (3 << 1)
+#define AK4497_DIF_32BIT_MODE	(4 << 1)
+
+#define AK4497_DIF_16BIT_LSB	(0 << 1)
+#define AK4497_DIF_20BIT_LSB	(1 << 1)
+#define AK4497_DIF_24BIT_MSB	(2 << 1)
+#define AK4497_DIF_24BIT_I2S	(3 << 1)
+#define AK4497_DIF_24BIT_LSB	(4 << 1)
+#define AK4497_DIF_32BIT_LSB	(5 << 1)
+#define AK4497_DIF_32BIT_MSB	(6 << 1)
+#define AK4497_DIF_32BIT_I2S	(7 << 1)
+
+/* AK4497_02_CONTROL3 (0x02) Fields */
+#define AK4497_DIF_DSD				0x80
+#define AK4497_DIF_DSD_MODE	    (1 << 7)
+
+
+/* AK4497_01_CONTROL2 (0x01) Fields */
+/* AK4497_05_CONTROL4 (0x05) Fields */
+#define AK4497_DFS				0x18
+#define AK4497_DFS_48KHZ		(0x0 << 3)  //  30kHz to 54kHz
+#define AK4497_DFS_96KHZ		(0x1 << 3)  //  54kHz to 108kHz
+#define AK4497_DFS_192KHZ		(0x2 << 3)  //  120kHz  to 216kHz
+#define AK4497_DFS_384KHZ		(0x0 << 3)
+#define AK4497_DFS_768KHZ		(0x1 << 3)
+
+#define AK4497_DFS2				0x2
+#define AK4497_DFS2_48KHZ		(0x0 << 1)  // 30kHz to 216kHz
+#define AK4497_DFS2_384KHZ		(0x1 << 1)  // 384kHz, 768kHz to 108kHz
+
+
+#define AK4497_DSDSEL0			0x1
+#define AK4497_DSDSEL0_2MHZ		0x0
+#define AK4497_DSDSEL0_5MHZ		0x1
+#define AK4497_DSDSEL0_11MHZ		0x0
+#define AK4497_DSDSEL0_22MHZ		0x1
+
+#define AK4497_DSDSEL1			0x1
+#define AK4497_DSDSEL1_2MHZ		0x0
+#define AK4497_DSDSEL1_5MHZ		0x0
+#define AK4497_DSDSEL1_11MHZ		0x1
+#define AK4497_DSDSEL1_22MHZ		0x1
+
+#endif