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Diffstat (limited to 'sound/soc/codecs/max98390.c')
-rw-r--r--sound/soc/codecs/max98390.c1144
1 files changed, 1144 insertions, 0 deletions
diff --git a/sound/soc/codecs/max98390.c b/sound/soc/codecs/max98390.c
new file mode 100644
index 000000000..7a5260ff8
--- /dev/null
+++ b/sound/soc/codecs/max98390.c
@@ -0,0 +1,1144 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * max98390.c -- MAX98390 ALSA Soc Audio driver
+ *
+ * Copyright (C) 2020 Maxim Integrated Products
+ *
+ */
+
+#include <linux/acpi.h>
+#include <linux/cdev.h>
+#include <linux/dmi.h>
+#include <linux/firmware.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/of_gpio.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/time.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#include "max98390.h"
+
+static struct reg_default max98390_reg_defaults[] = {
+ {MAX98390_INT_EN1, 0xf0},
+ {MAX98390_INT_EN2, 0x00},
+ {MAX98390_INT_EN3, 0x00},
+ {MAX98390_INT_FLAG_CLR1, 0x00},
+ {MAX98390_INT_FLAG_CLR2, 0x00},
+ {MAX98390_INT_FLAG_CLR3, 0x00},
+ {MAX98390_IRQ_CTRL, 0x01},
+ {MAX98390_CLK_MON, 0x6d},
+ {MAX98390_DAT_MON, 0x03},
+ {MAX98390_WDOG_CTRL, 0x00},
+ {MAX98390_WDOG_RST, 0x00},
+ {MAX98390_MEAS_ADC_THERM_WARN_THRESH, 0x75},
+ {MAX98390_MEAS_ADC_THERM_SHDN_THRESH, 0x8c},
+ {MAX98390_MEAS_ADC_THERM_HYSTERESIS, 0x08},
+ {MAX98390_PIN_CFG, 0x55},
+ {MAX98390_PCM_RX_EN_A, 0x00},
+ {MAX98390_PCM_RX_EN_B, 0x00},
+ {MAX98390_PCM_TX_EN_A, 0x00},
+ {MAX98390_PCM_TX_EN_B, 0x00},
+ {MAX98390_PCM_TX_HIZ_CTRL_A, 0xff},
+ {MAX98390_PCM_TX_HIZ_CTRL_B, 0xff},
+ {MAX98390_PCM_CH_SRC_1, 0x00},
+ {MAX98390_PCM_CH_SRC_2, 0x00},
+ {MAX98390_PCM_CH_SRC_3, 0x00},
+ {MAX98390_PCM_MODE_CFG, 0xc0},
+ {MAX98390_PCM_MASTER_MODE, 0x1c},
+ {MAX98390_PCM_CLK_SETUP, 0x44},
+ {MAX98390_PCM_SR_SETUP, 0x08},
+ {MAX98390_ICC_RX_EN_A, 0x00},
+ {MAX98390_ICC_RX_EN_B, 0x00},
+ {MAX98390_ICC_TX_EN_A, 0x00},
+ {MAX98390_ICC_TX_EN_B, 0x00},
+ {MAX98390_ICC_HIZ_MANUAL_MODE, 0x00},
+ {MAX98390_ICC_TX_HIZ_EN_A, 0x00},
+ {MAX98390_ICC_TX_HIZ_EN_B, 0x00},
+ {MAX98390_ICC_LNK_EN, 0x00},
+ {MAX98390_R2039_AMP_DSP_CFG, 0x0f},
+ {MAX98390_R203A_AMP_EN, 0x81},
+ {MAX98390_TONE_GEN_DC_CFG, 0x00},
+ {MAX98390_SPK_SRC_SEL, 0x00},
+ {MAX98390_SSM_CFG, 0x85},
+ {MAX98390_MEAS_EN, 0x03},
+ {MAX98390_MEAS_DSP_CFG, 0x0f},
+ {MAX98390_BOOST_CTRL0, 0x1c},
+ {MAX98390_BOOST_CTRL3, 0x01},
+ {MAX98390_BOOST_CTRL1, 0x40},
+ {MAX98390_MEAS_ADC_CFG, 0x07},
+ {MAX98390_MEAS_ADC_BASE_MSB, 0x00},
+ {MAX98390_MEAS_ADC_BASE_LSB, 0x23},
+ {MAX98390_ADC_CH0_DIVIDE, 0x00},
+ {MAX98390_ADC_CH1_DIVIDE, 0x00},
+ {MAX98390_ADC_CH2_DIVIDE, 0x00},
+ {MAX98390_ADC_CH0_FILT_CFG, 0x00},
+ {MAX98390_ADC_CH1_FILT_CFG, 0x00},
+ {MAX98390_ADC_CH2_FILT_CFG, 0x00},
+ {MAX98390_PWR_GATE_CTL, 0x2c},
+ {MAX98390_BROWNOUT_EN, 0x00},
+ {MAX98390_BROWNOUT_INFINITE_HOLD, 0x00},
+ {MAX98390_BROWNOUT_INFINITE_HOLD_CLR, 0x00},
+ {MAX98390_BROWNOUT_LVL_HOLD, 0x00},
+ {MAX98390_BROWNOUT_LVL1_THRESH, 0x00},
+ {MAX98390_BROWNOUT_LVL2_THRESH, 0x00},
+ {MAX98390_BROWNOUT_LVL3_THRESH, 0x00},
+ {MAX98390_BROWNOUT_LVL4_THRESH, 0x00},
+ {MAX98390_BROWNOUT_THRESH_HYSTERYSIS, 0x00},
+ {MAX98390_BROWNOUT_AMP_LIMITER_ATK_REL, 0x1f},
+ {MAX98390_BROWNOUT_AMP_GAIN_ATK_REL, 0x00},
+ {MAX98390_BROWNOUT_AMP1_CLIP_MODE, 0x00},
+ {MAX98390_BROWNOUT_LVL1_CUR_LIMIT, 0x00},
+ {MAX98390_BROWNOUT_LVL1_AMP1_CTRL1, 0x00},
+ {MAX98390_BROWNOUT_LVL1_AMP1_CTRL2, 0x00},
+ {MAX98390_BROWNOUT_LVL1_AMP1_CTRL3, 0x00},
+ {MAX98390_BROWNOUT_LVL2_CUR_LIMIT, 0x00},
+ {MAX98390_BROWNOUT_LVL2_AMP1_CTRL1, 0x00},
+ {MAX98390_BROWNOUT_LVL2_AMP1_CTRL2, 0x00},
+ {MAX98390_BROWNOUT_LVL2_AMP1_CTRL3, 0x00},
+ {MAX98390_BROWNOUT_LVL3_CUR_LIMIT, 0x00},
+ {MAX98390_BROWNOUT_LVL3_AMP1_CTRL1, 0x00},
+ {MAX98390_BROWNOUT_LVL3_AMP1_CTRL2, 0x00},
+ {MAX98390_BROWNOUT_LVL3_AMP1_CTRL3, 0x00},
+ {MAX98390_BROWNOUT_LVL4_CUR_LIMIT, 0x00},
+ {MAX98390_BROWNOUT_LVL4_AMP1_CTRL1, 0x00},
+ {MAX98390_BROWNOUT_LVL4_AMP1_CTRL2, 0x00},
+ {MAX98390_BROWNOUT_LVL4_AMP1_CTRL3, 0x00},
+ {MAX98390_BROWNOUT_ILIM_HLD, 0x00},
+ {MAX98390_BROWNOUT_LIM_HLD, 0x00},
+ {MAX98390_BROWNOUT_CLIP_HLD, 0x00},
+ {MAX98390_BROWNOUT_GAIN_HLD, 0x00},
+ {MAX98390_ENV_TRACK_VOUT_HEADROOM, 0x0f},
+ {MAX98390_ENV_TRACK_BOOST_VOUT_DELAY, 0x80},
+ {MAX98390_ENV_TRACK_REL_RATE, 0x07},
+ {MAX98390_ENV_TRACK_HOLD_RATE, 0x07},
+ {MAX98390_ENV_TRACK_CTRL, 0x01},
+ {MAX98390_BOOST_BYPASS1, 0x49},
+ {MAX98390_BOOST_BYPASS2, 0x2b},
+ {MAX98390_BOOST_BYPASS3, 0x08},
+ {MAX98390_FET_SCALING1, 0x00},
+ {MAX98390_FET_SCALING2, 0x03},
+ {MAX98390_FET_SCALING3, 0x00},
+ {MAX98390_FET_SCALING4, 0x07},
+ {MAX98390_SPK_SPEEDUP, 0x00},
+ {DSMIG_WB_DRC_RELEASE_TIME_1, 0x00},
+ {DSMIG_WB_DRC_RELEASE_TIME_2, 0x00},
+ {DSMIG_WB_DRC_ATTACK_TIME_1, 0x00},
+ {DSMIG_WB_DRC_ATTACK_TIME_2, 0x00},
+ {DSMIG_WB_DRC_COMPRESSION_RATIO, 0x00},
+ {DSMIG_WB_DRC_COMPRESSION_THRESHOLD, 0x00},
+ {DSMIG_WB_DRC_MAKEUPGAIN, 0x00},
+ {DSMIG_WB_DRC_NOISE_GATE_THRESHOLD, 0x00},
+ {DSMIG_WBDRC_HPF_ENABLE, 0x00},
+ {DSMIG_WB_DRC_TEST_SMOOTHER_OUT_EN, 0x00},
+ {DSMIG_PPR_THRESHOLD, 0x00},
+ {DSM_STEREO_BASS_CHANNEL_SELECT, 0x00},
+ {DSM_TPROT_THRESHOLD_BYTE0, 0x00},
+ {DSM_TPROT_THRESHOLD_BYTE1, 0x00},
+ {DSM_TPROT_ROOM_TEMPERATURE_BYTE0, 0x00},
+ {DSM_TPROT_ROOM_TEMPERATURE_BYTE1, 0x00},
+ {DSM_TPROT_RECIP_RDC_ROOM_BYTE0, 0x00},
+ {DSM_TPROT_RECIP_RDC_ROOM_BYTE1, 0x00},
+ {DSM_TPROT_RECIP_RDC_ROOM_BYTE2, 0x00},
+ {DSM_TPROT_RECIP_TCONST_BYTE0, 0x00},
+ {DSM_TPROT_RECIP_TCONST_BYTE1, 0x00},
+ {DSM_TPROT_RECIP_TCONST_BYTE2, 0x00},
+ {DSM_THERMAL_ATTENUATION_SETTINGS, 0x00},
+ {DSM_THERMAL_PILOT_TONE_ATTENUATION, 0x00},
+ {DSM_TPROT_PG_TEMP_THRESH_BYTE0, 0x00},
+ {DSM_TPROT_PG_TEMP_THRESH_BYTE1, 0x00},
+ {DSMIG_DEBUZZER_THRESHOLD, 0x00},
+ {DSMIG_DEBUZZER_ALPHA_COEF_TEST_ONLY, 0x08},
+ {DSM_VOL_ENA, 0x20},
+ {DSM_VOL_CTRL, 0xa0},
+ {DSMIG_EN, 0x00},
+ {MAX98390_R23E1_DSP_GLOBAL_EN, 0x00},
+ {MAX98390_R23FF_GLOBAL_EN, 0x00},
+};
+
+static int max98390_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+ unsigned int mode;
+ unsigned int format;
+ unsigned int invert = 0;
+
+ dev_dbg(component->dev, "%s: fmt 0x%08X\n", __func__, fmt);
+
+ switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+ case SND_SOC_DAIFMT_CBC_CFC:
+ mode = MAX98390_PCM_MASTER_MODE_SLAVE;
+ break;
+ case SND_SOC_DAIFMT_CBP_CFP:
+ max98390->provider = true;
+ mode = MAX98390_PCM_MASTER_MODE_MASTER;
+ break;
+ default:
+ dev_err(component->dev, "DAI clock mode unsupported\n");
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_MASTER_MODE,
+ MAX98390_PCM_MASTER_MODE_MASK,
+ mode);
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ invert = MAX98390_PCM_MODE_CFG_PCM_BCLKEDGE;
+ break;
+ default:
+ dev_err(component->dev, "DAI invert mode unsupported\n");
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_MODE_CFG,
+ MAX98390_PCM_MODE_CFG_PCM_BCLKEDGE,
+ invert);
+
+ /* interface format */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ format = MAX98390_PCM_FORMAT_I2S;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ format = MAX98390_PCM_FORMAT_LJ;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ format = MAX98390_PCM_FORMAT_TDM_MODE1;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ format = MAX98390_PCM_FORMAT_TDM_MODE0;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_MODE_CFG,
+ MAX98390_PCM_MODE_CFG_FORMAT_MASK,
+ format << MAX98390_PCM_MODE_CFG_FORMAT_SHIFT);
+
+ return 0;
+}
+
+static int max98390_get_bclk_sel(int bclk)
+{
+ int i;
+ /* BCLKs per LRCLK */
+ static int bclk_sel_table[] = {
+ 32, 48, 64, 96, 128, 192, 256, 320, 384, 512,
+ };
+ /* match BCLKs per LRCLK */
+ for (i = 0; i < ARRAY_SIZE(bclk_sel_table); i++) {
+ if (bclk_sel_table[i] == bclk)
+ return i + 2;
+ }
+ return 0;
+}
+
+static int max98390_set_clock(struct snd_soc_component *component,
+ struct snd_pcm_hw_params *params)
+{
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+ /* codec MCLK rate in master mode */
+ static int rate_table[] = {
+ 5644800, 6000000, 6144000, 6500000,
+ 9600000, 11289600, 12000000, 12288000,
+ 13000000, 19200000,
+ };
+ /* BCLK/LRCLK ratio calculation */
+ int blr_clk_ratio = params_channels(params)
+ * snd_pcm_format_width(params_format(params));
+ int value;
+
+ if (max98390->provider) {
+ int i;
+ /* match rate to closest value */
+ for (i = 0; i < ARRAY_SIZE(rate_table); i++) {
+ if (rate_table[i] >= max98390->sysclk)
+ break;
+ }
+ if (i == ARRAY_SIZE(rate_table)) {
+ dev_err(component->dev, "failed to find proper clock rate.\n");
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_MASTER_MODE,
+ MAX98390_PCM_MASTER_MODE_MCLK_MASK,
+ i << MAX98390_PCM_MASTER_MODE_MCLK_RATE_SHIFT);
+ }
+
+ if (!max98390->tdm_mode) {
+ /* BCLK configuration */
+ value = max98390_get_bclk_sel(blr_clk_ratio);
+ if (!value) {
+ dev_err(component->dev, "format unsupported %d\n",
+ params_format(params));
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_CLK_SETUP,
+ MAX98390_PCM_CLK_SETUP_BSEL_MASK,
+ value);
+ }
+ return 0;
+}
+
+static int max98390_dai_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component =
+ dai->component;
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+
+ unsigned int sampling_rate;
+ unsigned int chan_sz;
+
+ /* pcm mode configuration */
+ switch (snd_pcm_format_width(params_format(params))) {
+ case 16:
+ chan_sz = MAX98390_PCM_MODE_CFG_CHANSZ_16;
+ break;
+ case 24:
+ chan_sz = MAX98390_PCM_MODE_CFG_CHANSZ_24;
+ break;
+ case 32:
+ chan_sz = MAX98390_PCM_MODE_CFG_CHANSZ_32;
+ break;
+ default:
+ dev_err(component->dev, "format unsupported %d\n",
+ params_format(params));
+ goto err;
+ }
+
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_MODE_CFG,
+ MAX98390_PCM_MODE_CFG_CHANSZ_MASK, chan_sz);
+
+ dev_dbg(component->dev, "format supported %d",
+ params_format(params));
+
+ /* sampling rate configuration */
+ switch (params_rate(params)) {
+ case 8000:
+ sampling_rate = MAX98390_PCM_SR_SET1_SR_8000;
+ break;
+ case 11025:
+ sampling_rate = MAX98390_PCM_SR_SET1_SR_11025;
+ break;
+ case 12000:
+ sampling_rate = MAX98390_PCM_SR_SET1_SR_12000;
+ break;
+ case 16000:
+ sampling_rate = MAX98390_PCM_SR_SET1_SR_16000;
+ break;
+ case 22050:
+ sampling_rate = MAX98390_PCM_SR_SET1_SR_22050;
+ break;
+ case 24000:
+ sampling_rate = MAX98390_PCM_SR_SET1_SR_24000;
+ break;
+ case 32000:
+ sampling_rate = MAX98390_PCM_SR_SET1_SR_32000;
+ break;
+ case 44100:
+ sampling_rate = MAX98390_PCM_SR_SET1_SR_44100;
+ break;
+ case 48000:
+ sampling_rate = MAX98390_PCM_SR_SET1_SR_48000;
+ break;
+ default:
+ dev_err(component->dev, "rate %d not supported\n",
+ params_rate(params));
+ goto err;
+ }
+
+ /* set DAI_SR to correct LRCLK frequency */
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_SR_SETUP,
+ MAX98390_PCM_SR_SET1_SR_MASK,
+ sampling_rate);
+
+ return max98390_set_clock(component, params);
+err:
+ return -EINVAL;
+}
+
+static int max98390_dai_tdm_slot(struct snd_soc_dai *dai,
+ unsigned int tx_mask, unsigned int rx_mask,
+ int slots, int slot_width)
+{
+ struct snd_soc_component *component = dai->component;
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+
+ int bsel;
+ unsigned int chan_sz;
+
+ if (!tx_mask && !rx_mask && !slots && !slot_width)
+ max98390->tdm_mode = false;
+ else
+ max98390->tdm_mode = true;
+
+ dev_dbg(component->dev,
+ "Tdm mode : %d\n", max98390->tdm_mode);
+
+ /* BCLK configuration */
+ bsel = max98390_get_bclk_sel(slots * slot_width);
+ if (!bsel) {
+ dev_err(component->dev, "BCLK %d not supported\n",
+ slots * slot_width);
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_CLK_SETUP,
+ MAX98390_PCM_CLK_SETUP_BSEL_MASK,
+ bsel);
+
+ /* Channel size configuration */
+ switch (slot_width) {
+ case 16:
+ chan_sz = MAX98390_PCM_MODE_CFG_CHANSZ_16;
+ break;
+ case 24:
+ chan_sz = MAX98390_PCM_MODE_CFG_CHANSZ_24;
+ break;
+ case 32:
+ chan_sz = MAX98390_PCM_MODE_CFG_CHANSZ_32;
+ break;
+ default:
+ dev_err(component->dev, "format unsupported %d\n",
+ slot_width);
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_MODE_CFG,
+ MAX98390_PCM_MODE_CFG_CHANSZ_MASK, chan_sz);
+
+ /* Rx slot configuration */
+ regmap_write(max98390->regmap,
+ MAX98390_PCM_RX_EN_A,
+ rx_mask & 0xFF);
+ regmap_write(max98390->regmap,
+ MAX98390_PCM_RX_EN_B,
+ (rx_mask & 0xFF00) >> 8);
+
+ /* Tx slot Hi-Z configuration */
+ regmap_write(max98390->regmap,
+ MAX98390_PCM_TX_HIZ_CTRL_A,
+ ~tx_mask & 0xFF);
+ regmap_write(max98390->regmap,
+ MAX98390_PCM_TX_HIZ_CTRL_B,
+ (~tx_mask & 0xFF00) >> 8);
+
+ return 0;
+}
+
+static int max98390_dai_set_sysclk(struct snd_soc_dai *dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_component *component = dai->component;
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+
+ max98390->sysclk = freq;
+ return 0;
+}
+
+static const struct snd_soc_dai_ops max98390_dai_ops = {
+ .set_sysclk = max98390_dai_set_sysclk,
+ .set_fmt = max98390_dai_set_fmt,
+ .hw_params = max98390_dai_hw_params,
+ .set_tdm_slot = max98390_dai_tdm_slot,
+};
+
+static int max98390_dac_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *component =
+ snd_soc_dapm_to_component(w->dapm);
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ regmap_update_bits(max98390->regmap,
+ MAX98390_R203A_AMP_EN,
+ MAX98390_AMP_EN_MASK, 1);
+ regmap_update_bits(max98390->regmap,
+ MAX98390_R23FF_GLOBAL_EN,
+ MAX98390_GLOBAL_EN_MASK, 1);
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ regmap_update_bits(max98390->regmap,
+ MAX98390_R23FF_GLOBAL_EN,
+ MAX98390_GLOBAL_EN_MASK, 0);
+ regmap_update_bits(max98390->regmap,
+ MAX98390_R203A_AMP_EN,
+ MAX98390_AMP_EN_MASK, 0);
+ break;
+ }
+ return 0;
+}
+
+static const char * const max98390_switch_text[] = {
+ "Left", "Right", "LeftRight"};
+
+static const char * const max98390_boost_voltage_text[] = {
+ "6.5V", "6.625V", "6.75V", "6.875V", "7V", "7.125V", "7.25V", "7.375V",
+ "7.5V", "7.625V", "7.75V", "7.875V", "8V", "8.125V", "8.25V", "8.375V",
+ "8.5V", "8.625V", "8.75V", "8.875V", "9V", "9.125V", "9.25V", "9.375V",
+ "9.5V", "9.625V", "9.75V", "9.875V", "10V"
+};
+
+static SOC_ENUM_SINGLE_DECL(max98390_boost_voltage,
+ MAX98390_BOOST_CTRL0, 0,
+ max98390_boost_voltage_text);
+
+static DECLARE_TLV_DB_SCALE(max98390_spk_tlv, 300, 300, 0);
+static DECLARE_TLV_DB_SCALE(max98390_digital_tlv, -8000, 50, 0);
+
+static const char * const max98390_current_limit_text[] = {
+ "0.00A", "0.50A", "1.00A", "1.05A", "1.10A", "1.15A", "1.20A", "1.25A",
+ "1.30A", "1.35A", "1.40A", "1.45A", "1.50A", "1.55A", "1.60A", "1.65A",
+ "1.70A", "1.75A", "1.80A", "1.85A", "1.90A", "1.95A", "2.00A", "2.05A",
+ "2.10A", "2.15A", "2.20A", "2.25A", "2.30A", "2.35A", "2.40A", "2.45A",
+ "2.50A", "2.55A", "2.60A", "2.65A", "2.70A", "2.75A", "2.80A", "2.85A",
+ "2.90A", "2.95A", "3.00A", "3.05A", "3.10A", "3.15A", "3.20A", "3.25A",
+ "3.30A", "3.35A", "3.40A", "3.45A", "3.50A", "3.55A", "3.60A", "3.65A",
+ "3.70A", "3.75A", "3.80A", "3.85A", "3.90A", "3.95A", "4.00A", "4.05A",
+ "4.10A"
+};
+
+static SOC_ENUM_SINGLE_DECL(max98390_current_limit,
+ MAX98390_BOOST_CTRL1, 0,
+ max98390_current_limit_text);
+
+static int max98390_ref_rdc_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+
+ max98390->ref_rdc_value = ucontrol->value.integer.value[0];
+
+ regmap_write(max98390->regmap, DSM_TPROT_RECIP_RDC_ROOM_BYTE0,
+ max98390->ref_rdc_value & 0x000000ff);
+ regmap_write(max98390->regmap, DSM_TPROT_RECIP_RDC_ROOM_BYTE1,
+ (max98390->ref_rdc_value >> 8) & 0x000000ff);
+ regmap_write(max98390->regmap, DSM_TPROT_RECIP_RDC_ROOM_BYTE2,
+ (max98390->ref_rdc_value >> 16) & 0x000000ff);
+
+ return 0;
+}
+
+static int max98390_ref_rdc_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+
+ ucontrol->value.integer.value[0] = max98390->ref_rdc_value;
+
+ return 0;
+}
+
+static int max98390_ambient_temp_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+
+ max98390->ambient_temp_value = ucontrol->value.integer.value[0];
+
+ regmap_write(max98390->regmap, DSM_TPROT_ROOM_TEMPERATURE_BYTE1,
+ (max98390->ambient_temp_value >> 8) & 0x000000ff);
+ regmap_write(max98390->regmap, DSM_TPROT_ROOM_TEMPERATURE_BYTE0,
+ (max98390->ambient_temp_value) & 0x000000ff);
+
+ return 0;
+}
+
+static int max98390_ambient_temp_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+
+ ucontrol->value.integer.value[0] = max98390->ambient_temp_value;
+
+ return 0;
+}
+
+static int max98390_adaptive_rdc_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+
+ dev_warn(component->dev, "Put adaptive rdc not supported\n");
+
+ return 0;
+}
+
+static int max98390_adaptive_rdc_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ int rdc, rdc0;
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+
+ regmap_read(max98390->regmap, THERMAL_RDC_RD_BACK_BYTE1, &rdc);
+ regmap_read(max98390->regmap, THERMAL_RDC_RD_BACK_BYTE0, &rdc0);
+ ucontrol->value.integer.value[0] = rdc0 | rdc << 8;
+
+ return 0;
+}
+
+static int max98390_dsm_calib_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ /* Do nothing */
+ return 0;
+}
+
+static int max98390_dsm_calib_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+ struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component);
+ struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+ unsigned int rdc, rdc_cal_result, rdc_integer, rdc_factor, temp, val;
+
+ snd_soc_dapm_mutex_lock(dapm);
+
+ regmap_read(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, &val);
+ if (!val) {
+ /* Enable the codec for the duration of calibration readout */
+ regmap_update_bits(max98390->regmap, MAX98390_R203A_AMP_EN,
+ MAX98390_AMP_EN_MASK, 1);
+ regmap_update_bits(max98390->regmap, MAX98390_R23FF_GLOBAL_EN,
+ MAX98390_GLOBAL_EN_MASK, 1);
+ }
+
+ regmap_read(max98390->regmap, THERMAL_RDC_RD_BACK_BYTE1, &rdc);
+ regmap_read(max98390->regmap, THERMAL_RDC_RD_BACK_BYTE0, &rdc_cal_result);
+ regmap_read(max98390->regmap, MAX98390_MEAS_ADC_CH2_READ, &temp);
+
+ if (!val) {
+ /* Disable the codec if it was disabled */
+ regmap_update_bits(max98390->regmap, MAX98390_R23FF_GLOBAL_EN,
+ MAX98390_GLOBAL_EN_MASK, 0);
+ regmap_update_bits(max98390->regmap, MAX98390_R203A_AMP_EN,
+ MAX98390_AMP_EN_MASK, 0);
+ }
+
+ snd_soc_dapm_mutex_unlock(dapm);
+
+ rdc_cal_result |= (rdc << 8) & 0x0000FFFF;
+ if (rdc_cal_result)
+ max98390->ref_rdc_value = 268435456U / rdc_cal_result;
+
+ max98390->ambient_temp_value = temp * 52 - 1188;
+
+ rdc_integer = rdc_cal_result * 937 / 65536;
+ rdc_factor = ((rdc_cal_result * 937 * 100) / 65536) - (rdc_integer * 100);
+
+ dev_info(component->dev,
+ "rdc resistance about %d.%02d ohm, reg=0x%X temp reg=0x%X\n",
+ rdc_integer, rdc_factor, rdc_cal_result, temp);
+
+ return 0;
+}
+
+static const struct snd_kcontrol_new max98390_snd_controls[] = {
+ SOC_SINGLE_TLV("Digital Volume", DSM_VOL_CTRL,
+ 0, 184, 0,
+ max98390_digital_tlv),
+ SOC_SINGLE_TLV("Speaker Volume", MAX98390_R203D_SPK_GAIN,
+ 0, 6, 0,
+ max98390_spk_tlv),
+ SOC_SINGLE("Ramp Up Bypass Switch", MAX98390_R2039_AMP_DSP_CFG,
+ MAX98390_AMP_DSP_CFG_RMP_UP_SHIFT, 1, 0),
+ SOC_SINGLE("Ramp Down Bypass Switch", MAX98390_R2039_AMP_DSP_CFG,
+ MAX98390_AMP_DSP_CFG_RMP_DN_SHIFT, 1, 0),
+ SOC_SINGLE("Boost Clock Phase", MAX98390_BOOST_CTRL3,
+ MAX98390_BOOST_CLK_PHASE_CFG_SHIFT, 3, 0),
+ SOC_ENUM("Boost Output Voltage", max98390_boost_voltage),
+ SOC_ENUM("Current Limit", max98390_current_limit),
+ SOC_SINGLE_EXT("DSM Rdc", SND_SOC_NOPM, 0, 0xffffff, 0,
+ max98390_ref_rdc_get, max98390_ref_rdc_put),
+ SOC_SINGLE_EXT("DSM Ambient Temp", SND_SOC_NOPM, 0, 0xffff, 0,
+ max98390_ambient_temp_get, max98390_ambient_temp_put),
+ SOC_SINGLE_EXT("DSM Adaptive Rdc", SND_SOC_NOPM, 0, 0xffff, 0,
+ max98390_adaptive_rdc_get, max98390_adaptive_rdc_put),
+ SOC_SINGLE_EXT("DSM Calibration", SND_SOC_NOPM, 0, 1, 0,
+ max98390_dsm_calib_get, max98390_dsm_calib_put),
+};
+
+static const struct soc_enum dai_sel_enum =
+ SOC_ENUM_SINGLE(MAX98390_PCM_CH_SRC_1,
+ MAX98390_PCM_RX_CH_SRC_SHIFT,
+ 3, max98390_switch_text);
+
+static const struct snd_kcontrol_new max98390_dai_controls =
+ SOC_DAPM_ENUM("DAI Sel", dai_sel_enum);
+
+static const struct snd_soc_dapm_widget max98390_dapm_widgets[] = {
+ SND_SOC_DAPM_DAC_E("Amp Enable", "HiFi Playback",
+ SND_SOC_NOPM, 0, 0, max98390_dac_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_MUX("DAI Sel Mux", SND_SOC_NOPM, 0, 0,
+ &max98390_dai_controls),
+ SND_SOC_DAPM_OUTPUT("BE_OUT"),
+};
+
+static const struct snd_soc_dapm_route max98390_audio_map[] = {
+ /* Plabyack */
+ {"DAI Sel Mux", "Left", "Amp Enable"},
+ {"DAI Sel Mux", "Right", "Amp Enable"},
+ {"DAI Sel Mux", "LeftRight", "Amp Enable"},
+ {"BE_OUT", NULL, "DAI Sel Mux"},
+};
+
+static bool max98390_readable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case MAX98390_SOFTWARE_RESET ... MAX98390_INT_EN3:
+ case MAX98390_IRQ_CTRL ... MAX98390_WDOG_CTRL:
+ case MAX98390_MEAS_ADC_THERM_WARN_THRESH
+ ... MAX98390_BROWNOUT_INFINITE_HOLD:
+ case MAX98390_BROWNOUT_LVL_HOLD ... DSMIG_DEBUZZER_THRESHOLD:
+ case DSM_VOL_ENA ... MAX98390_R24FF_REV_ID:
+ return true;
+ default:
+ return false;
+ }
+};
+
+static bool max98390_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case MAX98390_SOFTWARE_RESET ... MAX98390_INT_EN3:
+ case MAX98390_MEAS_ADC_CH0_READ ... MAX98390_MEAS_ADC_CH2_READ:
+ case MAX98390_PWR_GATE_STATUS ... MAX98390_BROWNOUT_STATUS:
+ case MAX98390_BROWNOUT_LOWEST_STATUS:
+ case MAX98390_ENV_TRACK_BOOST_VOUT_READ:
+ case DSM_STBASS_HPF_B0_BYTE0 ... DSM_DEBUZZER_ATTACK_TIME_BYTE2:
+ case THERMAL_RDC_RD_BACK_BYTE1 ... DSMIG_DEBUZZER_THRESHOLD:
+ case DSM_THERMAL_GAIN ... DSM_WBDRC_GAIN:
+ return true;
+ default:
+ return false;
+ }
+}
+
+#define MAX98390_RATES SNDRV_PCM_RATE_8000_48000
+
+#define MAX98390_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_driver max98390_dai[] = {
+ {
+ .name = "max98390-aif1",
+ .playback = {
+ .stream_name = "HiFi Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = MAX98390_RATES,
+ .formats = MAX98390_FORMATS,
+ },
+ .capture = {
+ .stream_name = "HiFi Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = MAX98390_RATES,
+ .formats = MAX98390_FORMATS,
+ },
+ .ops = &max98390_dai_ops,
+ }
+};
+
+static int max98390_dsm_init(struct snd_soc_component *component)
+{
+ int ret;
+ int param_size, param_start_addr;
+ char filename[128];
+ const char *vendor, *product;
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+ const struct firmware *fw;
+ char *dsm_param;
+
+ vendor = dmi_get_system_info(DMI_SYS_VENDOR);
+ product = dmi_get_system_info(DMI_PRODUCT_NAME);
+
+ if (!strcmp(max98390->dsm_param_name, "default")) {
+ if (vendor && product) {
+ snprintf(filename, sizeof(filename),
+ "dsm_param_%s_%s.bin", vendor, product);
+ } else {
+ sprintf(filename, "dsm_param.bin");
+ }
+ } else {
+ snprintf(filename, sizeof(filename), "%s",
+ max98390->dsm_param_name);
+ }
+ ret = request_firmware(&fw, filename, component->dev);
+ if (ret) {
+ ret = request_firmware(&fw, "dsm_param.bin", component->dev);
+ if (ret) {
+ ret = request_firmware(&fw, "dsmparam.bin",
+ component->dev);
+ if (ret)
+ goto err;
+ }
+ }
+
+ dev_dbg(component->dev,
+ "max98390: param fw size %zd\n",
+ fw->size);
+ if (fw->size < MAX98390_DSM_PARAM_MIN_SIZE) {
+ dev_err(component->dev,
+ "param fw is invalid.\n");
+ ret = -EINVAL;
+ goto err_alloc;
+ }
+ dsm_param = (char *)fw->data;
+ param_start_addr = (dsm_param[0] & 0xff) | (dsm_param[1] & 0xff) << 8;
+ param_size = (dsm_param[2] & 0xff) | (dsm_param[3] & 0xff) << 8;
+ if (param_size > MAX98390_DSM_PARAM_MAX_SIZE ||
+ param_start_addr < MAX98390_IRQ_CTRL ||
+ fw->size < param_size + MAX98390_DSM_PAYLOAD_OFFSET) {
+ dev_err(component->dev,
+ "param fw is invalid.\n");
+ ret = -EINVAL;
+ goto err_alloc;
+ }
+ regmap_write(max98390->regmap, MAX98390_R203A_AMP_EN, 0x80);
+ dsm_param += MAX98390_DSM_PAYLOAD_OFFSET;
+ regmap_bulk_write(max98390->regmap, param_start_addr,
+ dsm_param, param_size);
+ regmap_write(max98390->regmap, MAX98390_R23E1_DSP_GLOBAL_EN, 0x01);
+
+err_alloc:
+ release_firmware(fw);
+err:
+ return ret;
+}
+
+static void max98390_init_regs(struct snd_soc_component *component)
+{
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+
+ regmap_write(max98390->regmap, MAX98390_CLK_MON, 0x6f);
+ regmap_write(max98390->regmap, MAX98390_DAT_MON, 0x00);
+ regmap_write(max98390->regmap, MAX98390_PWR_GATE_CTL, 0x00);
+ regmap_write(max98390->regmap, MAX98390_PCM_RX_EN_A, 0x03);
+ regmap_write(max98390->regmap, MAX98390_ENV_TRACK_VOUT_HEADROOM, 0x0e);
+ regmap_write(max98390->regmap, MAX98390_BOOST_BYPASS1, 0x46);
+ regmap_write(max98390->regmap, MAX98390_FET_SCALING3, 0x03);
+
+ /* voltage, current slot configuration */
+ regmap_write(max98390->regmap,
+ MAX98390_PCM_CH_SRC_2,
+ (max98390->i_l_slot << 4 |
+ max98390->v_l_slot)&0xFF);
+
+ if (max98390->v_l_slot < 8) {
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_HIZ_CTRL_A,
+ 1 << max98390->v_l_slot, 0);
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_EN_A,
+ 1 << max98390->v_l_slot,
+ 1 << max98390->v_l_slot);
+ } else {
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_HIZ_CTRL_B,
+ 1 << (max98390->v_l_slot - 8), 0);
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_EN_B,
+ 1 << (max98390->v_l_slot - 8),
+ 1 << (max98390->v_l_slot - 8));
+ }
+
+ if (max98390->i_l_slot < 8) {
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_HIZ_CTRL_A,
+ 1 << max98390->i_l_slot, 0);
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_EN_A,
+ 1 << max98390->i_l_slot,
+ 1 << max98390->i_l_slot);
+ } else {
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_HIZ_CTRL_B,
+ 1 << (max98390->i_l_slot - 8), 0);
+ regmap_update_bits(max98390->regmap,
+ MAX98390_PCM_TX_EN_B,
+ 1 << (max98390->i_l_slot - 8),
+ 1 << (max98390->i_l_slot - 8));
+ }
+}
+
+static int max98390_probe(struct snd_soc_component *component)
+{
+ struct max98390_priv *max98390 =
+ snd_soc_component_get_drvdata(component);
+
+ regmap_write(max98390->regmap, MAX98390_SOFTWARE_RESET, 0x01);
+ /* Sleep reset settle time */
+ msleep(20);
+
+ /* Amp init setting */
+ max98390_init_regs(component);
+ /* Update dsm bin param */
+ max98390_dsm_init(component);
+
+ /* Dsm Setting */
+ if (max98390->ref_rdc_value) {
+ regmap_write(max98390->regmap, DSM_TPROT_RECIP_RDC_ROOM_BYTE0,
+ max98390->ref_rdc_value & 0x000000ff);
+ regmap_write(max98390->regmap, DSM_TPROT_RECIP_RDC_ROOM_BYTE1,
+ (max98390->ref_rdc_value >> 8) & 0x000000ff);
+ regmap_write(max98390->regmap, DSM_TPROT_RECIP_RDC_ROOM_BYTE2,
+ (max98390->ref_rdc_value >> 16) & 0x000000ff);
+ }
+ if (max98390->ambient_temp_value) {
+ regmap_write(max98390->regmap, DSM_TPROT_ROOM_TEMPERATURE_BYTE1,
+ (max98390->ambient_temp_value >> 8) & 0x000000ff);
+ regmap_write(max98390->regmap, DSM_TPROT_ROOM_TEMPERATURE_BYTE0,
+ (max98390->ambient_temp_value) & 0x000000ff);
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int max98390_suspend(struct device *dev)
+{
+ struct max98390_priv *max98390 = dev_get_drvdata(dev);
+
+ dev_dbg(dev, "%s:Enter\n", __func__);
+
+ regcache_cache_only(max98390->regmap, true);
+ regcache_mark_dirty(max98390->regmap);
+
+ return 0;
+}
+
+static int max98390_resume(struct device *dev)
+{
+ struct max98390_priv *max98390 = dev_get_drvdata(dev);
+
+ dev_dbg(dev, "%s:Enter\n", __func__);
+
+ regcache_cache_only(max98390->regmap, false);
+ regcache_sync(max98390->regmap);
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops max98390_pm = {
+ SET_SYSTEM_SLEEP_PM_OPS(max98390_suspend, max98390_resume)
+};
+
+static const struct snd_soc_component_driver soc_codec_dev_max98390 = {
+ .probe = max98390_probe,
+ .controls = max98390_snd_controls,
+ .num_controls = ARRAY_SIZE(max98390_snd_controls),
+ .dapm_widgets = max98390_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(max98390_dapm_widgets),
+ .dapm_routes = max98390_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(max98390_audio_map),
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+};
+
+static const struct regmap_config max98390_regmap = {
+ .reg_bits = 16,
+ .val_bits = 8,
+ .max_register = MAX98390_R24FF_REV_ID,
+ .reg_defaults = max98390_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(max98390_reg_defaults),
+ .readable_reg = max98390_readable_register,
+ .volatile_reg = max98390_volatile_reg,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static void max98390_slot_config(struct i2c_client *i2c,
+ struct max98390_priv *max98390)
+{
+ int value;
+ struct device *dev = &i2c->dev;
+
+ if (!device_property_read_u32(dev, "maxim,vmon-slot-no", &value))
+ max98390->v_l_slot = value & 0xF;
+ else
+ max98390->v_l_slot = 0;
+
+ if (!device_property_read_u32(dev, "maxim,imon-slot-no", &value))
+ max98390->i_l_slot = value & 0xF;
+ else
+ max98390->i_l_slot = 1;
+}
+
+static int max98390_i2c_probe(struct i2c_client *i2c)
+{
+ int ret = 0;
+ int reg = 0;
+
+ struct max98390_priv *max98390 = NULL;
+ struct i2c_adapter *adapter = i2c->adapter;
+ struct gpio_desc *reset_gpio;
+
+ ret = i2c_check_functionality(adapter,
+ I2C_FUNC_SMBUS_BYTE
+ | I2C_FUNC_SMBUS_BYTE_DATA);
+ if (!ret) {
+ dev_err(&i2c->dev, "I2C check functionality failed\n");
+ return -ENXIO;
+ }
+
+ max98390 = devm_kzalloc(&i2c->dev, sizeof(*max98390), GFP_KERNEL);
+ if (!max98390) {
+ ret = -ENOMEM;
+ return ret;
+ }
+ i2c_set_clientdata(i2c, max98390);
+
+ ret = device_property_read_u32(&i2c->dev, "maxim,temperature_calib",
+ &max98390->ambient_temp_value);
+ if (ret) {
+ dev_info(&i2c->dev,
+ "no optional property 'temperature_calib' found, default:\n");
+ }
+ ret = device_property_read_u32(&i2c->dev, "maxim,r0_calib",
+ &max98390->ref_rdc_value);
+ if (ret) {
+ dev_info(&i2c->dev,
+ "no optional property 'r0_calib' found, default:\n");
+ }
+
+ dev_info(&i2c->dev,
+ "%s: r0_calib: 0x%x,temperature_calib: 0x%x",
+ __func__, max98390->ref_rdc_value,
+ max98390->ambient_temp_value);
+
+ ret = device_property_read_string(&i2c->dev, "maxim,dsm_param_name",
+ &max98390->dsm_param_name);
+ if (ret)
+ max98390->dsm_param_name = "default";
+
+ /* voltage/current slot configuration */
+ max98390_slot_config(i2c, max98390);
+
+ /* regmap initialization */
+ max98390->regmap = devm_regmap_init_i2c(i2c, &max98390_regmap);
+ if (IS_ERR(max98390->regmap)) {
+ ret = PTR_ERR(max98390->regmap);
+ dev_err(&i2c->dev,
+ "Failed to allocate regmap: %d\n", ret);
+ return ret;
+ }
+
+ reset_gpio = devm_gpiod_get_optional(&i2c->dev,
+ "reset", GPIOD_OUT_HIGH);
+
+ /* Power on device */
+ if (reset_gpio) {
+ usleep_range(1000, 2000);
+ /* bring out of reset */
+ gpiod_set_value_cansleep(reset_gpio, 0);
+ usleep_range(1000, 2000);
+ }
+
+ /* Check Revision ID */
+ ret = regmap_read(max98390->regmap,
+ MAX98390_R24FF_REV_ID, &reg);
+ if (ret) {
+ dev_err(&i2c->dev,
+ "ret=%d, Failed to read: 0x%02X\n",
+ ret, MAX98390_R24FF_REV_ID);
+ return ret;
+ }
+ dev_info(&i2c->dev, "MAX98390 revisionID: 0x%02X\n", reg);
+
+ ret = devm_snd_soc_register_component(&i2c->dev,
+ &soc_codec_dev_max98390,
+ max98390_dai, ARRAY_SIZE(max98390_dai));
+
+ return ret;
+}
+
+static const struct i2c_device_id max98390_i2c_id[] = {
+ { "max98390", 0},
+ {},
+};
+
+MODULE_DEVICE_TABLE(i2c, max98390_i2c_id);
+
+#if defined(CONFIG_OF)
+static const struct of_device_id max98390_of_match[] = {
+ { .compatible = "maxim,max98390", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, max98390_of_match);
+#endif
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id max98390_acpi_match[] = {
+ { "MX98390", 0 },
+ {},
+};
+MODULE_DEVICE_TABLE(acpi, max98390_acpi_match);
+#endif
+
+static struct i2c_driver max98390_i2c_driver = {
+ .driver = {
+ .name = "max98390",
+ .of_match_table = of_match_ptr(max98390_of_match),
+ .acpi_match_table = ACPI_PTR(max98390_acpi_match),
+ .pm = &max98390_pm,
+ },
+ .probe_new = max98390_i2c_probe,
+ .id_table = max98390_i2c_id,
+};
+
+module_i2c_driver(max98390_i2c_driver)
+
+MODULE_DESCRIPTION("ALSA SoC MAX98390 driver");
+MODULE_AUTHOR("Steve Lee <steves.lee@maximintegrated.com>");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-08 00:02:48 +0000