ASoC: Add support for Maxim Integrated MAX98927 Amplifier

Signed-off-by: NRyan Lee <ryans.lee@maximintegrated.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/max98925.txt

-max98925 audio CODEC
-
-This device supports I2C.
-
-Required properties:
-
-  - compatible : "maxim,max98925"
-
-  - vmon-slot-no : slot number used to send voltage information
-
-  - imon-slot-no : slot number used to send current information
-
-  - reg : the I2C address of the device for I2C
-
-Example:
-
-codec: max98925@1a {
-	compatible = "maxim,max98925";
-	vmon-slot-no = <0>;
-	imon-slot-no = <2>;
-	reg = <0x1a>;
-};

Documentation/devicetree/bindings/sound/max98926.txt

-max98926 audio CODEC
-
-This device supports I2C.
-
-Required properties:
-
-  - compatible : "maxim,max98926"
-
-  - vmon-slot-no : slot number used to send voltage information
-                   or in inteleave mode this will be used as
-                   interleave slot.
-
-  - imon-slot-no : slot number used to send current information
-
-  - interleave-mode : When using two MAX98926 in a system it is
-                      possible to create ADC data that that will
-                      overflow the frame size. Digital Audio Interleave
-                      mode provides a means to output VMON and IMON data
-                      from two devices on a single DOUT line when running
-                      smaller frames sizes such as 32 BCLKS per LRCLK or
-                      48 BCLKS per LRCLK.
-
-  - reg : the I2C address of the device for I2C
-
-Example:
-
-codec: max98926@1a {
-   compatible = "maxim,max98926";
-   vmon-slot-no = <0>;
-   imon-slot-no = <2>;
-   reg = <0x1a>;
-};

Documentation/devicetree/bindings/sound/max9892x.txt

+Maxim Integrated MAX98925/MAX98926/MAX98927 Speaker Amplifier
+
+This device supports I2C.
+
+Required properties:
+
+  - compatible : should be one of the following
+    - "maxim,max98925"
+    - "maxim,max98926"
+    - "maxim,max98927"
+
+  - vmon-slot-no : slot number used to send voltage information
+                   or in inteleave mode this will be used as
+                   interleave slot.
+                   MAX98925/MAX98926 slot range : 0 ~ 30,  Default : 0
+                   MAX98927 slot range : 0 ~ 15,  Default : 0
+
+  - imon-slot-no : slot number used to send current information
+                   MAX98925/MAX98926 slot range : 0 ~ 30,  Default : 0
+                   MAX98927 slot range : 0 ~ 15,  Default : 0
+
+  - interleave-mode : When using two MAX9892X in a system it is
+                   possible to create ADC data that that will
+                   overflow the frame size. Digital Audio Interleave
+                   mode provides a means to output VMON and IMON data
+                   from two devices on a single DOUT line when running
+                   smaller frames sizes such as 32 BCLKS per LRCLK or
+                   48 BCLKS per LRCLK.
+                   Range : 0 (off), 1 (on),  Default : 0
+
+  - reg : the I2C address of the device for I2C
+
+Example:
+
+codec: max98927@3a {
+   compatible = "maxim,max98927";
+   vmon-slot-no = <0>;
+   imon-slot-no = <1>;
+   interleave-mode = <0>;
+   reg = <0x3a>;
+};

sound/soc/codecs/Kconfig

@@ -89,6 +89,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_MAX9867 if I2C
 	select SND_SOC_MAX98925 if I2C
 	select SND_SOC_MAX98926 if I2C
+	select SND_SOC_MAX98927 if I2C
 	select SND_SOC_MAX9850 if I2C
 	select SND_SOC_MAX9860 if I2C
 	select SND_SOC_MAX9768 if I2C
@@ -585,6 +586,10 @@ config SND_SOC_MAX98925
 config SND_SOC_MAX98926
 	tristate
 
+config SND_SOC_MAX98927
+	tristate "Maxim Integrated MAX98927 Speaker Amplifier"
+	depends on I2C
+
 config SND_SOC_MAX9850
 	tristate
 

sound/soc/codecs/Makefile

@@ -84,6 +84,7 @@ snd-soc-max98371-objs := max98371.o
 snd-soc-max9867-objs := max9867.o
 snd-soc-max98925-objs := max98925.o
 snd-soc-max98926-objs := max98926.o
+snd-soc-max98927-objs := max98927.o
 snd-soc-max9850-objs := max9850.o
 snd-soc-max9860-objs := max9860.o
 snd-soc-mc13783-objs := mc13783.o
@@ -312,6 +313,7 @@ obj-$(CONFIG_SND_SOC_MAX98357A)	+= snd-soc-max98357a.o
 obj-$(CONFIG_SND_SOC_MAX9867)	+= snd-soc-max9867.o
 obj-$(CONFIG_SND_SOC_MAX98925)	+= snd-soc-max98925.o
 obj-$(CONFIG_SND_SOC_MAX98926)	+= snd-soc-max98926.o
+obj-$(CONFIG_SND_SOC_MAX98927)	+= snd-soc-max98927.o
 obj-$(CONFIG_SND_SOC_MAX9850)	+= snd-soc-max9850.o
 obj-$(CONFIG_SND_SOC_MAX9860)	+= snd-soc-max9860.o
 obj-$(CONFIG_SND_SOC_MC13783)	+= snd-soc-mc13783.o

sound/soc/codecs/max98927.h

+/*
+ * max98927.h  --  MAX98927 ALSA Soc Audio driver
+ *
+ * Copyright 2013-15 Maxim Integrated Products
+ * Author: Ryan Lee <ryans.lee@maximintegrated.com>
+ *
+ *  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 _MAX98927_H
+#define _MAX98927_H
+
+/* Register Values */
+#define MAX98927_R0001_INT_RAW1 0x0001
+#define MAX98927_R0002_INT_RAW2 0x0002
+#define MAX98927_R0003_INT_RAW3 0x0003
+#define MAX98927_R0004_INT_STATE1 0x0004
+#define MAX98927_R0005_INT_STATE2 0x0005
+#define MAX98927_R0006_INT_STATE3 0x0006
+#define MAX98927_R0007_INT_FLAG1 0x0007
+#define MAX98927_R0008_INT_FLAG2 0x0008
+#define MAX98927_R0009_INT_FLAG3 0x0009
+#define MAX98927_R000A_INT_EN1 0x000A
+#define MAX98927_R000B_INT_EN2 0x000B
+#define MAX98927_R000C_INT_EN3 0x000C
+#define MAX98927_R000D_INT_FLAG_CLR1	0x000D
+#define MAX98927_R000E_INT_FLAG_CLR2	0x000E
+#define MAX98927_R000F_INT_FLAG_CLR3	0x000F
+#define MAX98927_R0010_IRQ_CTRL 0x0010
+#define MAX98927_R0011_CLK_MON 0x0011
+#define MAX98927_R0012_WDOG_CTRL 0x0012
+#define MAX98927_R0013_WDOG_RST 0x0013
+#define MAX98927_R0014_MEAS_ADC_THERM_WARN_THRESH 0x0014
+#define MAX98927_R0015_MEAS_ADC_THERM_SHDN_THRESH 0x0015
+#define MAX98927_R0016_MEAS_ADC_THERM_HYSTERESIS 0x0016
+#define MAX98927_R0017_PIN_CFG 0x0017
+#define MAX98927_R0018_PCM_RX_EN_A 0x0018
+#define MAX98927_R0019_PCM_RX_EN_B 0x0019
+#define MAX98927_R001A_PCM_TX_EN_A 0x001A
+#define MAX98927_R001B_PCM_TX_EN_B 0x001B
+#define MAX98927_R001C_PCM_TX_HIZ_CTRL_A 0x001C
+#define MAX98927_R001D_PCM_TX_HIZ_CTRL_B 0x001D
+#define MAX98927_R001E_PCM_TX_CH_SRC_A 0x001E
+#define MAX98927_R001F_PCM_TX_CH_SRC_B 0x001F
+#define MAX98927_R0020_PCM_MODE_CFG 0x0020
+#define MAX98927_R0021_PCM_MASTER_MODE 0x0021
+#define MAX98927_R0022_PCM_CLK_SETUP 0x0022
+#define MAX98927_R0023_PCM_SR_SETUP1 0x0023
+#define MAX98927_R0024_PCM_SR_SETUP2	0x0024
+#define MAX98927_R0025_PCM_TO_SPK_MONOMIX_A 0x0025
+#define MAX98927_R0026_PCM_TO_SPK_MONOMIX_B 0x0026
+#define MAX98927_R0027_ICC_RX_EN_A 0x0027
+#define MAX98927_R0028_ICC_RX_EN_B 0x0028
+#define MAX98927_R002B_ICC_TX_EN_A 0x002B
+#define MAX98927_R002C_ICC_TX_EN_B 0x002C
+#define MAX98927_R002E_ICC_HIZ_MANUAL_MODE 0x002E
+#define MAX98927_R002F_ICC_TX_HIZ_EN_A 0x002F
+#define MAX98927_R0030_ICC_TX_HIZ_EN_B 0x0030
+#define MAX98927_R0031_ICC_LNK_EN 0x0031
+#define MAX98927_R0032_PDM_TX_EN 0x0032
+#define MAX98927_R0033_PDM_TX_HIZ_CTRL 0x0033
+#define MAX98927_R0034_PDM_TX_CTRL 0x0034
+#define MAX98927_R0035_PDM_RX_CTRL 0x0035
+#define MAX98927_R0036_AMP_VOL_CTRL 0x0036
+#define MAX98927_R0037_AMP_DSP_CFG 0x0037
+#define MAX98927_R0038_TONE_GEN_DC_CFG 0x0038
+#define MAX98927_R0039_DRE_CTRL 0x0039
+#define MAX98927_R003A_AMP_EN 0x003A
+#define MAX98927_R003B_SPK_SRC_SEL 0x003B
+#define MAX98927_R003C_SPK_GAIN 0x003C
+#define MAX98927_R003D_SSM_CFG 0x003D
+#define MAX98927_R003E_MEAS_EN 0x003E
+#define MAX98927_R003F_MEAS_DSP_CFG 0x003F
+#define MAX98927_R0040_BOOST_CTRL0 0x0040
+#define MAX98927_R0041_BOOST_CTRL3 0x0041
+#define MAX98927_R0042_BOOST_CTRL1 0x0042
+#define MAX98927_R0043_MEAS_ADC_CFG 0x0043
+#define MAX98927_R0044_MEAS_ADC_BASE_MSB 0x0044
+#define MAX98927_R0045_MEAS_ADC_BASE_LSB 0x0045
+#define MAX98927_R0046_ADC_CH0_DIVIDE 0x0046
+#define MAX98927_R0047_ADC_CH1_DIVIDE 0x0047
+#define MAX98927_R0048_ADC_CH2_DIVIDE 0x0048
+#define MAX98927_R0049_ADC_CH0_FILT_CFG 0x0049
+#define MAX98927_R004A_ADC_CH1_FILT_CFG 0x004A
+#define MAX98927_R004B_ADC_CH2_FILT_CFG 0x004B
+#define MAX98927_R004C_MEAS_ADC_CH0_READ 0x004C
+#define MAX98927_R004D_MEAS_ADC_CH1_READ 0x004D
+#define MAX98927_R004E_MEAS_ADC_CH2_READ 0x004E
+#define MAX98927_R0051_BROWNOUT_STATUS 0x0051
+#define MAX98927_R0052_BROWNOUT_EN 0x0052
+#define MAX98927_R0053_BROWNOUT_INFINITE_HOLD 0x0053
+#define MAX98927_R0054_BROWNOUT_INFINITE_HOLD_CLR 0x0054
+#define MAX98927_R0055_BROWNOUT_LVL_HOLD 0x0055
+#define MAX98927_R005A_BROWNOUT_LVL1_THRESH 0x005A
+#define MAX98927_R005B_BROWNOUT_LVL2_THRESH 0x005B
+#define MAX98927_R005C_BROWNOUT_LVL3_THRESH 0x005C
+#define MAX98927_R005D_BROWNOUT_LVL4_THRESH 0x005D
+#define MAX98927_R005E_BROWNOUT_THRESH_HYSTERYSIS 0x005E
+#define MAX98927_R005F_BROWNOUT_AMP_LIMITER_ATK_REL 0x005F
+#define MAX98927_R0060_BROWNOUT_AMP_GAIN_ATK_REL 0x0060
+#define MAX98927_R0061_BROWNOUT_AMP1_CLIP_MODE 0x0061
+#define MAX98927_R0072_BROWNOUT_LVL1_CUR_LIMIT 0x0072
+#define MAX98927_R0073_BROWNOUT_LVL1_AMP1_CTRL1 0x0073
+#define MAX98927_R0074_BROWNOUT_LVL1_AMP1_CTRL2 0x0074
+#define MAX98927_R0075_BROWNOUT_LVL1_AMP1_CTRL3 0x0075
+#define MAX98927_R0076_BROWNOUT_LVL2_CUR_LIMIT 0x0076
+#define MAX98927_R0077_BROWNOUT_LVL2_AMP1_CTRL1 0x0077
+#define MAX98927_R0078_BROWNOUT_LVL2_AMP1_CTRL2 0x0078
+#define MAX98927_R0079_BROWNOUT_LVL2_AMP1_CTRL3 0x0079
+#define MAX98927_R007A_BROWNOUT_LVL3_CUR_LIMIT 0x007A
+#define MAX98927_R007B_BROWNOUT_LVL3_AMP1_CTRL1 0x007B
+#define MAX98927_R007C_BROWNOUT_LVL3_AMP1_CTRL2 0x007C
+#define MAX98927_R007D_BROWNOUT_LVL3_AMP1_CTRL3 0x007D
+#define MAX98927_R007E_BROWNOUT_LVL4_CUR_LIMIT 0x007E
+#define MAX98927_R007F_BROWNOUT_LVL4_AMP1_CTRL1 0x007F
+#define MAX98927_R0080_BROWNOUT_LVL4_AMP1_CTRL2 0x0080
+#define MAX98927_R0081_BROWNOUT_LVL4_AMP1_CTRL3 0x0081
+#define MAX98927_R0082_ENV_TRACK_VOUT_HEADROOM 0x0082
+#define MAX98927_R0083_ENV_TRACK_BOOST_VOUT_DELAY 0x0083
+#define MAX98927_R0084_ENV_TRACK_REL_RATE 0x0084
+#define MAX98927_R0085_ENV_TRACK_HOLD_RATE 0x0085
+#define MAX98927_R0086_ENV_TRACK_CTRL 0x0086
+#define MAX98927_R0087_ENV_TRACK_BOOST_VOUT_READ 0x0087
+#define MAX98927_R00FF_GLOBAL_SHDN 0x00FF
+#define MAX98927_R0100_SOFT_RESET 0x0100
+#define MAX98927_R01FF_REV_ID 0x01FF
+
+/* MAX98927_R0018_PCM_RX_EN_A */
+#define MAX98927_PCM_RX_CH0_EN (0x1 << 0)
+#define MAX98927_PCM_RX_CH1_EN (0x1 << 1)
+#define MAX98927_PCM_RX_CH2_EN (0x1 << 2)
+#define MAX98927_PCM_RX_CH3_EN (0x1 << 3)
+#define MAX98927_PCM_RX_CH4_EN (0x1 << 4)
+#define MAX98927_PCM_RX_CH5_EN (0x1 << 5)
+#define MAX98927_PCM_RX_CH6_EN (0x1 << 6)
+#define MAX98927_PCM_RX_CH7_EN (0x1 << 7)
+
+/* MAX98927_R001A_PCM_TX_EN_A */
+#define MAX98927_PCM_TX_CH0_EN (0x1 << 0)
+#define MAX98927_PCM_TX_CH1_EN (0x1 << 1)
+#define MAX98927_PCM_TX_CH2_EN (0x1 << 2)
+#define MAX98927_PCM_TX_CH3_EN (0x1 << 3)
+#define MAX98927_PCM_TX_CH4_EN (0x1 << 4)
+#define MAX98927_PCM_TX_CH5_EN (0x1 << 5)
+#define MAX98927_PCM_TX_CH6_EN (0x1 << 6)
+#define MAX98927_PCM_TX_CH7_EN (0x1 << 7)
+
+/* MAX98927_R001E_PCM_TX_CH_SRC_A */
+#define MAX98927_PCM_TX_CH_SRC_A_V_SHIFT (0)
+#define MAX98927_PCM_TX_CH_SRC_A_I_SHIFT (4)
+
+/* MAX98927_R001F_PCM_TX_CH_SRC_B */
+#define MAX98927_PCM_TX_CH_INTERLEAVE_MASK (0x1 << 5)
+
+/* MAX98927_R0020_PCM_MODE_CFG */
+#define MAX98927_PCM_MODE_CFG_PCM_BCLKEDGE (0x1 << 2)
+#define MAX98927_PCM_MODE_CFG_FORMAT_MASK (0x7 << 3)
+#define MAX98927_PCM_MODE_CFG_FORMAT_SHIFT (3)
+#define MAX98927_PCM_FORMAT_I2S (0x0 << 0)
+#define MAX98927_PCM_FORMAT_LJ (0x1 << 0)
+
+#define MAX98927_PCM_MODE_CFG_CHANSZ_MASK (0x3 << 6)
+#define MAX98927_PCM_MODE_CFG_CHANSZ_16 (0x1 << 6)
+#define MAX98927_PCM_MODE_CFG_CHANSZ_24 (0x2 << 6)
+#define MAX98927_PCM_MODE_CFG_CHANSZ_32 (0x3 << 6)
+
+/* MAX98927_R0021_PCM_MASTER_MODE */
+#define MAX98927_PCM_MASTER_MODE_MASK (0x3 << 0)
+#define MAX98927_PCM_MASTER_MODE_SLAVE (0x0 << 0)
+#define MAX98927_PCM_MASTER_MODE_MASTER (0x3 << 0)
+
+#define MAX98927_PCM_MASTER_MODE_MCLK_MASK (0xF << 2)
+#define MAX98927_PCM_MASTER_MODE_MCLK_RATE_SHIFT (2)
+
+/* MAX98927_R0022_PCM_CLK_SETUP */
+#define MAX98927_PCM_CLK_SETUP_BSEL_MASK (0xF << 0)
+
+/* MAX98927_R0023_PCM_SR_SETUP1 */
+#define MAX98927_PCM_SR_SET1_SR_MASK (0xF << 0)
+
+#define MAX98927_PCM_SR_SET1_SR_8000 (0x0 << 0)
+#define MAX98927_PCM_SR_SET1_SR_11025 (0x1 << 0)
+#define MAX98927_PCM_SR_SET1_SR_12000 (0x2 << 0)
+#define MAX98927_PCM_SR_SET1_SR_16000 (0x3 << 0)
+#define MAX98927_PCM_SR_SET1_SR_22050 (0x4 << 0)
+#define MAX98927_PCM_SR_SET1_SR_24000 (0x5 << 0)
+#define MAX98927_PCM_SR_SET1_SR_32000 (0x6 << 0)
+#define MAX98927_PCM_SR_SET1_SR_44100 (0x7 << 0)
+#define MAX98927_PCM_SR_SET1_SR_48000 (0x8 << 0)
+
+/* MAX98927_R0024_PCM_SR_SETUP2 */
+#define MAX98927_PCM_SR_SET2_SR_MASK (0xF << 4)
+#define MAX98927_PCM_SR_SET2_SR_SHIFT (4)
+#define MAX98927_PCM_SR_SET2_IVADC_SR_MASK (0xf << 0)
+
+/* MAX98927_R0025_PCM_TO_SPK_MONOMIX_A */
+#define MAX98927_PCM_TO_SPK_MONOMIX_CFG_MASK (0x3 << 6)
+#define MAX98927_PCM_TO_SPK_MONOMIX_CFG_SHIFT (6)
+
+/* MAX98927_R0035_PDM_RX_CTRL */
+#define MAX98927_PDM_RX_EN_MASK (0x1 << 0)
+
+/* MAX98927_R0036_AMP_VOL_CTRL */
+#define MAX98927_AMP_VOL_SEL (0x1 << 7)
+#define MAX98927_AMP_VOL_SEL_WIDTH (1)
+#define MAX98927_AMP_VOL_SEL_SHIFT (7)
+#define MAX98927_AMP_VOL_MASK (0x7f << 0)
+#define MAX98927_AMP_VOL_WIDTH (7)
+#define MAX98927_AMP_VOL_SHIFT (0)
+
+/* MAX98927_R0037_AMP_DSP_CFG */
+#define MAX98927_AMP_DSP_CFG_DCBLK_EN (0x1 << 0)
+#define MAX98927_AMP_DSP_CFG_DITH_EN (0x1 << 1)
+#define MAX98927_AMP_DSP_CFG_RMP_BYPASS (0x1 << 4)
+#define MAX98927_AMP_DSP_CFG_DAC_INV (0x1 << 5)
+#define MAX98927_AMP_DSP_CFG_RMP_SHIFT (4)
+
+/* MAX98927_R0039_DRE_CTRL */
+#define MAX98927_DRE_CTRL_DRE_EN	(0x1 << 0)
+#define MAX98927_DRE_EN_SHIFT 0x1
+
+/* MAX98927_R003A_AMP_EN */
+#define MAX98927_AMP_EN_MASK (0x1 << 0)
+
+/* MAX98927_R003B_SPK_SRC_SEL */
+#define MAX98927_SPK_SRC_MASK (0x3 << 0)
+
+/* MAX98927_R003C_SPK_GAIN */
+#define MAX98927_SPK_PCM_GAIN_MASK (0x7 << 0)
+#define MAX98927_SPK_PDM_GAIN_MASK (0x7 << 4)
+#define MAX98927_SPK_GAIN_WIDTH (3)
+
+/* MAX98927_R003E_MEAS_EN */
+#define MAX98927_MEAS_V_EN (0x1 << 0)
+#define MAX98927_MEAS_I_EN (0x1 << 1)
+
+/* MAX98927_R0040_BOOST_CTRL0 */
+#define MAX98927_BOOST_CTRL0_VOUT_MASK (0x1f << 0)
+#define MAX98927_BOOST_CTRL0_PVDD_MASK (0x1 << 7)
+#define MAX98927_BOOST_CTRL0_PVDD_EN_SHIFT (7)
+
+/* MAX98927_R0052_BROWNOUT_EN */
+#define MAX98927_BROWNOUT_BDE_EN (0x1 << 0)
+#define MAX98927_BROWNOUT_AMP_EN (0x1 << 1)
+#define MAX98927_BROWNOUT_DSP_EN (0x1 << 2)
+#define MAX98927_BROWNOUT_DSP_SHIFT (2)
+
+/* MAX98927_R0100_SOFT_RESET */
+#define MAX98927_SOFT_RESET (0x1 << 0)
+
+/* MAX98927_R00FF_GLOBAL_SHDN */
+#define MAX98927_GLOBAL_EN_MASK (0x1 << 0)
+
+struct max98927_priv {
+	struct regmap *regmap;
+	struct snd_soc_codec *codec;
+	struct max98927_pdata *pdata;
+	unsigned int spk_gain;
+	unsigned int sysclk;
+	unsigned int v_l_slot;
+	unsigned int i_l_slot;
+	bool interleave_mode;
+	unsigned int ch_size;
+	unsigned int rate;
+	unsigned int iface;
+	unsigned int master;
+	unsigned int digital_gain;
+};
+#endif