ASoC: max98520: add max98520 audio amplifier driver

add max98520 audio amplifier driver
Signed-off-by: NGeorge Song <george.song@maximintegrated.com>
Link: https://lore.kernel.org/r/20211027001431.363-2-george.song@maximintegrated.comSigned-off-by: NMark Brown <broonie@kernel.org>

sound/soc/codecs/Kconfig

@@ -117,6 +117,7 @@ config SND_SOC_ALL_CODECS
 	imply SND_SOC_MAX98357A
 	imply SND_SOC_MAX98371
 	imply SND_SOC_MAX98504
+	imply SND_SOC_MAX98520
 	imply SND_SOC_MAX9867
 	imply SND_SOC_MAX98925
 	imply SND_SOC_MAX98926
@@ -938,6 +939,17 @@ config SND_SOC_MAX98927
 	tristate "Maxim Integrated MAX98927 Speaker Amplifier"
 	depends on I2C
 
+config SND_SOC_MAX98520
+	tristate "Maxim Integrated MAX98520 Speaker Amplifier"
+	depends on I2C
+	help
+	  Enable support for Maxim Integrated MAX98520 audio
+	  amplifier, which implements a tripler charge pump
+	  based boost converter and supports sample rates of
+	  8KHz to 192KHz.
+
+	  To compile this driver as a module, choose M here.
+
 config SND_SOC_MAX98373
 	tristate
 

sound/soc/codecs/Makefile

@@ -125,6 +125,7 @@ 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-max98520-objs := max98520.o
 snd-soc-max98373-objs := max98373.o
 snd-soc-max98373-i2c-objs := max98373-i2c.o
 snd-soc-max98373-sdw-objs := max98373-sdw.o
@@ -457,6 +458,7 @@ 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-$(CONFIG_SND_SOC_MAX98520)	+= snd-soc-max98520.o
 obj-$(CONFIG_SND_SOC_MAX98373)	+= snd-soc-max98373.o
 obj-$(CONFIG_SND_SOC_MAX98373_I2C)   += snd-soc-max98373-i2c.o
 obj-$(CONFIG_SND_SOC_MAX98373_SDW)   += snd-soc-max98373-sdw.o

sound/soc/codecs/max98520.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2021, Maxim Integrated.
+ */
+
+#ifndef _MAX98520_H
+#define _MAX98520_H
+
+#define MAX98520_R2000_SW_RESET 0x2000
+#define MAX98520_R2001_STATUS_1 0x2001
+#define MAX98520_R2002_STATUS_2 0x2002
+#define MAX98520_R2020_THERM_WARN_THRESH 0x2020
+#define MAX98520_R2021_THERM_SHDN_THRESH 0x2021
+#define MAX98520_R2022_THERM_HYSTERESIS 0x2022
+#define MAX98520_R2023_THERM_FOLDBACK_SET 0x2023
+#define MAX98520_R2027_THERM_FOLDBACK_EN 0x2027
+#define MAX98520_R2030_CLK_MON_CTRL 0x2030
+#define MAX98520_R2037_ERR_MON_CTRL 0x2037
+#define MAX98520_R2040_PCM_MODE_CFG	0x2040
+#define MAX98520_R2041_PCM_CLK_SETUP 0x2041
+#define MAX98520_R2042_PCM_SR_SETUP 0x2042
+#define MAX98520_R2043_PCM_RX_SRC1 0x2043
+#define MAX98520_R2044_PCM_RX_SRC2 0x2044
+#define MAX98520_R204F_PCM_RX_EN 0x204F
+#define MAX98520_R2090_AMP_VOL_CTRL 0x2090
+#define MAX98520_R2091_AMP_PATH_GAIN 0x2091
+#define MAX98520_R2092_AMP_DSP_CFG 0x2092
+#define MAX98520_R2094_SSM_CFG 0x2094
+#define MAX98520_R2095_AMP_CFG 0x2095
+#define MAX98520_R209F_AMP_EN 0x209F
+#define MAX98520_R20B0_ADC_SR 0x20B0
+#define MAX98520_R20B1_ADC_RESOLUTION 0x20B1
+#define MAX98520_R20B2_ADC_PVDD0_CFG 0x20B2
+#define MAX98520_R20B3_ADC_THERMAL_CFG 0x20B3
+#define MAX98520_R20B4_ADC_READBACK_CTRL 0x20B4
+#define MAX98520_R20B5_ADC_READBACK_UPDATE 0x20B5
+#define MAX98520_R20B6_ADC_PVDD_READBACK_MSB 0x20B6
+#define MAX98520_R20B7_ADC_PVDD_READBACK_LSB 0x20B7
+#define MAX98520_R20B8_ADC_TEMP_READBACK_MSB 0x20B8
+#define MAX98520_R20B9_ADC_TEMP_READBACK_LSB 0x20B9
+#define MAX98520_R20BA_ADC_LOW_PVDD_READBACK_MSB 0x20BA
+#define MAX98520_R20BB_ADC_LOW_READBACK_LSB 0x20BB
+#define MAX98520_R20BC_ADC_HIGH_TEMP_READBACK_MSB 0x20BC
+#define MAX98520_R20BD_ADC_HIGH_TEMP_READBACK_LSB 0x20BD
+#define MAX98520_R20CF_MEAS_ADC_CFG 0x20CF
+#define MAX98520_R20D0_DHT_CFG1 0x20D0
+#define MAX98520_R20D1_LIMITER_CFG1 0x20D1
+#define MAX98520_R20D2_LIMITER_CFG2 0x20D2
+#define MAX98520_R20D3_DHT_CFG2 0x20D3
+#define MAX98520_R20D4_DHT_CFG3 0x20D4
+#define MAX98520_R20D5_DHT_CFG4 0x20D5
+#define MAX98520_R20D6_DHT_HYSTERESIS_CFG 0x20D6
+#define MAX98520_R20D8_DHT_EN 0x20D8
+#define MAX98520_R210E_AUTO_RESTART_BEHAVIOR 0x210E
+#define MAX98520_R210F_GLOBAL_EN 0x210F
+#define MAX98520_R2161_BOOST_TM1 0x2161
+#define MAX98520_R2162_BOOST_TM2 0x2162
+#define MAX98520_R2163_BOOST_TM3 0x2163
+#define MAX98520_R21FF_REVISION_ID 0x21FF
+
+/* MAX98520_R2030_CLK_MON_CTRL */
+#define MAX98520_CMON_AUTORESTART_SHIFT (0)
+
+/* MAX98520_R2037_ERR_MON_CTRL */
+#define MAX98520_CTRL_CMON_EN_SHIFT (0)
+
+/* MAX98520_R2040_PCM_MODE_CFG */
+#define MAX98520_PCM_MODE_CFG_FORMAT_MASK (0x7 << 3)
+#define MAX98520_PCM_MODE_CFG_FORMAT_SHIFT (3)
+#define MAX98520_PCM_TX_CH_INTERLEAVE_MASK (0x1 << 2)
+#define MAX98520_PCM_FORMAT_I2S (0x0 << 3)
+#define MAX98520_PCM_FORMAT_LJ (0x1 << 3)
+#define MAX98520_PCM_FORMAT_TDM_MODE0 (0x3 << 3)
+#define MAX98520_PCM_FORMAT_TDM_MODE1 (0x4 << 3)
+#define MAX98520_PCM_FORMAT_TDM_MODE2 (0x5 << 3)
+#define MAX98520_PCM_MODE_CFG_CHANSZ_MASK (0x3 << 6)
+#define MAX98520_PCM_MODE_CFG_CHANSZ_16 (0x1 << 6)
+#define MAX98520_PCM_MODE_CFG_CHANSZ_24 (0x2 << 6)
+#define MAX98520_PCM_MODE_CFG_CHANSZ_32 (0x3 << 6)
+
+/* MAX98520_R2041_PCM_CLK_SETUP */
+#define MAX98520_PCM_MODE_CFG_PCM_BCLKEDGE (0x1 << 4)
+#define MAX98520_PCM_CLK_SETUP_BSEL_MASK (0xF << 0)
+
+/* MAX98520_R2042_PCM_SR_SETUP */
+#define MAX98520_PCM_SR_SHIFT (0)
+#define MAX98520_IVADC_SR_SHIFT (4)
+#define MAX98520_PCM_SR_MASK (0xF << MAX98520_PCM_SR_SHIFT)
+#define MAX98520_IVADC_SR_MASK (0xF << MAX98520_IVADC_SR_SHIFT)
+#define MAX98520_PCM_SR_8000 (0x0)
+#define MAX98520_PCM_SR_11025 (0x1)
+#define MAX98520_PCM_SR_12000 (0x2)
+#define MAX98520_PCM_SR_16000 (0x3)
+#define MAX98520_PCM_SR_22050 (0x4)
+#define MAX98520_PCM_SR_24000 (0x5)
+#define MAX98520_PCM_SR_32000 (0x6)
+#define MAX98520_PCM_SR_44100 (0x7)
+#define MAX98520_PCM_SR_48000 (0x8)
+#define MAX98520_PCM_SR_88200 (0x9)
+#define MAX98520_PCM_SR_96000 (0xA)
+#define MAX98520_PCM_SR_176400 (0xB)
+#define MAX98520_PCM_SR_192000 (0xC)
+
+/* MAX98520_R2044_PCM_RX_SRC2 */
+#define MAX98520_PCM_DMIX_CH1_SHIFT (0xF << 0)
+#define MAX98520_PCM_DMIX_CH0_SRC_MASK (0xF << 0)
+#define MAX98520_PCM_DMIX_CH1_SRC_MASK (0xF << MAX98520_PCM_DMIX_CH1_SHIFT)
+
+/* MAX98520_R204F_PCM_RX_EN */
+#define MAX98520_PCM_RX_EN_MASK (0x1 << 0)
+#define MAX98520_PCM_RX_BYP_EN_MASK (0x1 << 1)
+
+/* MAX98520_R2092_AMP_DSP_CFG */
+#define MAX98520_DSP_SPK_DCBLK_EN_SHIFT (0)
+#define MAX98520_DSP_SPK_DITH_EN_SHIFT (1)
+#define MAX98520_DSP_SPK_INVERT_SHIFT (2)
+#define MAX98520_DSP_SPK_VOL_RMPUP_SHIFT (3)
+#define MAX98520_DSP_SPK_VOL_RMPDN_SHIFT (4)
+#define MAX98520_DSP_SPK_SAFE_EN_SHIFT (5)
+
+#define MAX98520_SPK_SAFE_EN_MASK (0x1 << MAX98520_DSP_SPK_SAFE_EN_SHIFT)
+
+/* MAX98520_R2094_SSM_CFG */
+#define MAX98520_SSM_EN_SHIFT (0)
+#define MAX98520_SSM_MOD_SHIFT (1)
+#define MAX98520_SSM_RCVR_MODE_SHIFT (3)
+
+/* MAX98520_R2095_AMP_CFG */
+#define MAX98520_CFG_DYN_MODE_SHIFT (4)
+#define MAX98520_CFG_SPK_MODE_SHIFT (3)
+
+/* MAX98520_R20D0_DHT_CFG1 */
+#define MAX98520_DHT_VROT_PNT_SHIFT	(0)
+
+/* MAX98520_R20D1_LIMITER_CFG1 */
+#define MAX98520_DHT_SUPPLY_HR_SHIFT (0)
+
+/* MAX98520_R20D2_DHT_CFG2 */
+#define MAX98520_DHT_LIMITER_MODE_SHIFT (0)
+#define MAX98520_DHT_LIMITER_THRESHOLD_SHIFT (1)
+
+/* MAX98520_R20D3_DHT_CFG2 */
+#define MAX98520_DHT_MAX_ATTEN_SHIFT (0)
+
+/* MAX98520_R20D6_DHT_HYSTERESIS_CFG */
+#define MAX98520_DHT_HYSTERESIS_SWITCH_SHIFT (0)
+#define MAX98520_DHT_HYSTERESIS_SHIFT (1)
+
+/* MAX98520_R20B2_ADC_PVDD0_CFG, MAX98520_R20B3_ADC_THERMAL_CFG */
+#define MAX98520_FLT_EN_SHIFT (4)
+
+struct max98520_priv {
+	struct regmap *regmap;
+	struct gpio_desc *reset_gpio;
+	unsigned int ch_size;
+	bool tdm_mode;
+};
+#endif
+