769 lines
24 KiB
C
769 lines
24 KiB
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2021, Maxim Integrated
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#include <linux/acpi.h>
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include <linux/slab.h>
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#include <linux/cdev.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <linux/gpio.h>
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#include <linux/gpio/consumer.h>
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#include <linux/of.h>
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#include <linux/of_gpio.h>
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#include <sound/tlv.h>
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#include "max98520.h"
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static struct reg_default max98520_reg[] = {
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{MAX98520_R2000_SW_RESET, 0x00},
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{MAX98520_R2001_STATUS_1, 0x00},
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{MAX98520_R2002_STATUS_2, 0x00},
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{MAX98520_R2020_THERM_WARN_THRESH, 0x46},
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{MAX98520_R2021_THERM_SHDN_THRESH, 0x64},
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{MAX98520_R2022_THERM_HYSTERESIS, 0x02},
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{MAX98520_R2023_THERM_FOLDBACK_SET, 0x31},
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{MAX98520_R2027_THERM_FOLDBACK_EN, 0x01},
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{MAX98520_R2030_CLK_MON_CTRL, 0x00},
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{MAX98520_R2037_ERR_MON_CTRL, 0x01},
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{MAX98520_R2040_PCM_MODE_CFG, 0xC0},
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{MAX98520_R2041_PCM_CLK_SETUP, 0x04},
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{MAX98520_R2042_PCM_SR_SETUP, 0x08},
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{MAX98520_R2043_PCM_RX_SRC1, 0x00},
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{MAX98520_R2044_PCM_RX_SRC2, 0x00},
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{MAX98520_R204F_PCM_RX_EN, 0x00},
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{MAX98520_R2090_AMP_VOL_CTRL, 0x00},
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{MAX98520_R2091_AMP_PATH_GAIN, 0x03},
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{MAX98520_R2092_AMP_DSP_CFG, 0x02},
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{MAX98520_R2094_SSM_CFG, 0x01},
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{MAX98520_R2095_AMP_CFG, 0xF0},
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{MAX98520_R209F_AMP_EN, 0x00},
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{MAX98520_R20B0_ADC_SR, 0x00},
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{MAX98520_R20B1_ADC_RESOLUTION, 0x00},
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{MAX98520_R20B2_ADC_PVDD0_CFG, 0x02},
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{MAX98520_R20B3_ADC_THERMAL_CFG, 0x02},
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{MAX98520_R20B4_ADC_READBACK_CTRL, 0x00},
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{MAX98520_R20B5_ADC_READBACK_UPDATE, 0x00},
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{MAX98520_R20B6_ADC_PVDD_READBACK_MSB, 0x00},
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{MAX98520_R20B7_ADC_PVDD_READBACK_LSB, 0x00},
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{MAX98520_R20B8_ADC_TEMP_READBACK_MSB, 0x00},
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{MAX98520_R20B9_ADC_TEMP_READBACK_LSB, 0x00},
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{MAX98520_R20BA_ADC_LOW_PVDD_READBACK_MSB, 0xFF},
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{MAX98520_R20BB_ADC_LOW_READBACK_LSB, 0x01},
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{MAX98520_R20BC_ADC_HIGH_TEMP_READBACK_MSB, 0x00},
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{MAX98520_R20BD_ADC_HIGH_TEMP_READBACK_LSB, 0x00},
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{MAX98520_R20CF_MEAS_ADC_CFG, 0x00},
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{MAX98520_R20D0_DHT_CFG1, 0x00},
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{MAX98520_R20D1_LIMITER_CFG1, 0x08},
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{MAX98520_R20D2_LIMITER_CFG2, 0x00},
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{MAX98520_R20D3_DHT_CFG2, 0x14},
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{MAX98520_R20D4_DHT_CFG3, 0x02},
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{MAX98520_R20D5_DHT_CFG4, 0x04},
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{MAX98520_R20D6_DHT_HYSTERESIS_CFG, 0x07},
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{MAX98520_R20D8_DHT_EN, 0x00},
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{MAX98520_R210E_AUTO_RESTART_BEHAVIOR, 0x00},
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{MAX98520_R210F_GLOBAL_EN, 0x00},
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{MAX98520_R21FF_REVISION_ID, 0x00},
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};
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static int max98520_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
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{
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struct snd_soc_component *component = codec_dai->component;
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struct max98520_priv *max98520 =
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snd_soc_component_get_drvdata(component);
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unsigned int format = 0;
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unsigned int invert = 0;
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dev_dbg(component->dev, "%s: fmt 0x%08X\n", __func__, fmt);
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switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
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case SND_SOC_DAIFMT_NB_NF:
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break;
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case SND_SOC_DAIFMT_IB_NF:
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invert = MAX98520_PCM_MODE_CFG_PCM_BCLKEDGE;
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break;
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default:
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dev_err(component->dev, "DAI invert mode unsupported\n");
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return -EINVAL;
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}
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regmap_update_bits(max98520->regmap,
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MAX98520_R2041_PCM_CLK_SETUP,
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MAX98520_PCM_MODE_CFG_PCM_BCLKEDGE,
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invert);
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/* interface format */
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
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case SND_SOC_DAIFMT_I2S:
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format = MAX98520_PCM_FORMAT_I2S;
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break;
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case SND_SOC_DAIFMT_LEFT_J:
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format = MAX98520_PCM_FORMAT_LJ;
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break;
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case SND_SOC_DAIFMT_DSP_A:
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format = MAX98520_PCM_FORMAT_TDM_MODE1;
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break;
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case SND_SOC_DAIFMT_DSP_B:
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format = MAX98520_PCM_FORMAT_TDM_MODE0;
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break;
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default:
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return -EINVAL;
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}
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regmap_update_bits(max98520->regmap,
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MAX98520_R2040_PCM_MODE_CFG,
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MAX98520_PCM_MODE_CFG_FORMAT_MASK,
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format << MAX98520_PCM_MODE_CFG_FORMAT_SHIFT);
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return 0;
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}
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/* BCLKs per LRCLK */
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static const int bclk_sel_table[] = {
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32, 48, 64, 96, 128, 192, 256, 384, 512, 320,
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};
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static int max98520_get_bclk_sel(int bclk)
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{
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int i;
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/* match BCLKs per LRCLK */
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for (i = 0; i < ARRAY_SIZE(bclk_sel_table); i++) {
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if (bclk_sel_table[i] == bclk)
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return i + 2;
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}
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return 0;
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}
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static int max98520_set_clock(struct snd_soc_component *component,
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struct snd_pcm_hw_params *params)
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{
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struct max98520_priv *max98520 =
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snd_soc_component_get_drvdata(component);
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/* BCLK/LRCLK ratio calculation */
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int blr_clk_ratio = params_channels(params) * max98520->ch_size;
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int value;
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if (!max98520->tdm_mode) {
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/* BCLK configuration */
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value = max98520_get_bclk_sel(blr_clk_ratio);
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if (!value) {
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dev_err(component->dev, "format unsupported %d\n",
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params_format(params));
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return -EINVAL;
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}
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regmap_update_bits(max98520->regmap,
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MAX98520_R2041_PCM_CLK_SETUP,
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MAX98520_PCM_CLK_SETUP_BSEL_MASK,
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value);
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}
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dev_dbg(component->dev, "%s tdm_mode:%d out\n", __func__, max98520->tdm_mode);
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return 0;
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}
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static int max98520_dai_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *component = dai->component;
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struct max98520_priv *max98520 =
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snd_soc_component_get_drvdata(component);
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unsigned int sampling_rate = 0;
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unsigned int chan_sz = 0;
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/* pcm mode configuration */
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switch (snd_pcm_format_width(params_format(params))) {
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case 16:
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chan_sz = MAX98520_PCM_MODE_CFG_CHANSZ_16;
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break;
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case 24:
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chan_sz = MAX98520_PCM_MODE_CFG_CHANSZ_24;
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break;
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case 32:
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chan_sz = MAX98520_PCM_MODE_CFG_CHANSZ_32;
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break;
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default:
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dev_err(component->dev, "format unsupported %d\n",
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params_format(params));
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goto err;
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}
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max98520->ch_size = snd_pcm_format_width(params_format(params));
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regmap_update_bits(max98520->regmap,
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MAX98520_R2040_PCM_MODE_CFG,
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MAX98520_PCM_MODE_CFG_CHANSZ_MASK, chan_sz);
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dev_dbg(component->dev, "format supported %d",
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params_format(params));
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/* sampling rate configuration */
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switch (params_rate(params)) {
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case 8000:
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sampling_rate = MAX98520_PCM_SR_8000;
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break;
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case 11025:
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sampling_rate = MAX98520_PCM_SR_11025;
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break;
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case 12000:
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sampling_rate = MAX98520_PCM_SR_12000;
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break;
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case 16000:
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sampling_rate = MAX98520_PCM_SR_16000;
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break;
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case 22050:
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sampling_rate = MAX98520_PCM_SR_22050;
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break;
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case 24000:
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sampling_rate = MAX98520_PCM_SR_24000;
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break;
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case 32000:
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sampling_rate = MAX98520_PCM_SR_32000;
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break;
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case 44100:
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sampling_rate = MAX98520_PCM_SR_44100;
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break;
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case 48000:
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sampling_rate = MAX98520_PCM_SR_48000;
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break;
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case 88200:
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sampling_rate = MAX98520_PCM_SR_88200;
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break;
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case 96000:
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sampling_rate = MAX98520_PCM_SR_96000;
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break;
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case 176400:
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sampling_rate = MAX98520_PCM_SR_176400;
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break;
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case 192000:
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sampling_rate = MAX98520_PCM_SR_192000;
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break;
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default:
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dev_err(component->dev, "rate %d not supported\n",
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params_rate(params));
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goto err;
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}
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dev_dbg(component->dev, " %s ch_size: %d, sampling rate : %d out\n", __func__,
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snd_pcm_format_width(params_format(params)), params_rate(params));
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/* set DAI_SR to correct LRCLK frequency */
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regmap_update_bits(max98520->regmap,
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MAX98520_R2042_PCM_SR_SETUP,
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MAX98520_PCM_SR_MASK,
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sampling_rate);
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return max98520_set_clock(component, params);
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err:
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dev_dbg(component->dev, "%s out error", __func__);
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return -EINVAL;
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}
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static int max98520_dai_tdm_slot(struct snd_soc_dai *dai,
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unsigned int tx_mask, unsigned int rx_mask,
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int slots, int slot_width)
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{
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struct snd_soc_component *component = dai->component;
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struct max98520_priv *max98520 =
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snd_soc_component_get_drvdata(component);
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int bsel;
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unsigned int chan_sz = 0;
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if (!tx_mask && !rx_mask && !slots && !slot_width)
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max98520->tdm_mode = false;
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else
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max98520->tdm_mode = true;
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/* BCLK configuration */
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bsel = max98520_get_bclk_sel(slots * slot_width);
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if (bsel == 0) {
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dev_err(component->dev, "BCLK %d not supported\n",
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slots * slot_width);
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return -EINVAL;
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}
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regmap_update_bits(max98520->regmap,
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MAX98520_R2041_PCM_CLK_SETUP,
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MAX98520_PCM_CLK_SETUP_BSEL_MASK,
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bsel);
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/* Channel size configuration */
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switch (slot_width) {
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case 16:
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chan_sz = MAX98520_PCM_MODE_CFG_CHANSZ_16;
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break;
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case 24:
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chan_sz = MAX98520_PCM_MODE_CFG_CHANSZ_24;
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break;
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case 32:
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chan_sz = MAX98520_PCM_MODE_CFG_CHANSZ_32;
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break;
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default:
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dev_err(component->dev, "format unsupported %d\n",
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slot_width);
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return -EINVAL;
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}
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regmap_update_bits(max98520->regmap,
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MAX98520_R2040_PCM_MODE_CFG,
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MAX98520_PCM_MODE_CFG_CHANSZ_MASK, chan_sz);
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/* Rx slot configuration */
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regmap_update_bits(max98520->regmap,
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MAX98520_R2044_PCM_RX_SRC2,
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MAX98520_PCM_DMIX_CH0_SRC_MASK,
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rx_mask);
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regmap_update_bits(max98520->regmap,
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MAX98520_R2044_PCM_RX_SRC2,
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MAX98520_PCM_DMIX_CH1_SRC_MASK,
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rx_mask << MAX98520_PCM_DMIX_CH1_SHIFT);
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return 0;
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}
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#define MAX98520_RATES SNDRV_PCM_RATE_8000_192000
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#define MAX98520_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
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SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
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static const struct snd_soc_dai_ops max98520_dai_ops = {
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.set_fmt = max98520_dai_set_fmt,
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.hw_params = max98520_dai_hw_params,
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.set_tdm_slot = max98520_dai_tdm_slot,
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};
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static int max98520_dac_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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struct snd_soc_component *component =
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snd_soc_dapm_to_component(w->dapm);
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struct max98520_priv *max98520 =
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snd_soc_component_get_drvdata(component);
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switch (event) {
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case SND_SOC_DAPM_POST_PMU:
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dev_dbg(component->dev, " AMP ON\n");
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regmap_write(max98520->regmap, MAX98520_R209F_AMP_EN, 1);
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regmap_write(max98520->regmap, MAX98520_R210F_GLOBAL_EN, 1);
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usleep_range(30000, 31000);
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break;
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case SND_SOC_DAPM_POST_PMD:
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dev_dbg(component->dev, " AMP OFF\n");
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regmap_write(max98520->regmap, MAX98520_R210F_GLOBAL_EN, 0);
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regmap_write(max98520->regmap, MAX98520_R209F_AMP_EN, 0);
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usleep_range(30000, 31000);
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break;
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default:
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return 0;
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}
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return 0;
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}
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static const char * const max98520_switch_text[] = {
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"Left", "Right", "LeftRight"};
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static const struct soc_enum dai_sel_enum =
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SOC_ENUM_SINGLE(MAX98520_R2043_PCM_RX_SRC1,
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0, 3, max98520_switch_text);
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static const struct snd_kcontrol_new max98520_dai_controls =
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SOC_DAPM_ENUM("DAI Sel", dai_sel_enum);
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static const struct snd_kcontrol_new max98520_left_input_mixer_controls[] = {
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SOC_DAPM_SINGLE("PCM_INPUT_CH0", MAX98520_R2044_PCM_RX_SRC2, 0, 0x0, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH1", MAX98520_R2044_PCM_RX_SRC2, 0, 0x1, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH2", MAX98520_R2044_PCM_RX_SRC2, 0, 0x2, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH3", MAX98520_R2044_PCM_RX_SRC2, 0, 0x3, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH4", MAX98520_R2044_PCM_RX_SRC2, 0, 0x4, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH5", MAX98520_R2044_PCM_RX_SRC2, 0, 0x5, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH6", MAX98520_R2044_PCM_RX_SRC2, 0, 0x6, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH7", MAX98520_R2044_PCM_RX_SRC2, 0, 0x7, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH8", MAX98520_R2044_PCM_RX_SRC2, 0, 0x8, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH9", MAX98520_R2044_PCM_RX_SRC2, 0, 0x9, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH10", MAX98520_R2044_PCM_RX_SRC2, 0, 0xa, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH11", MAX98520_R2044_PCM_RX_SRC2, 0, 0xb, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH12", MAX98520_R2044_PCM_RX_SRC2, 0, 0xc, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH13", MAX98520_R2044_PCM_RX_SRC2, 0, 0xd, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH14", MAX98520_R2044_PCM_RX_SRC2, 0, 0xe, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH15", MAX98520_R2044_PCM_RX_SRC2, 0, 0xf, 0),
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};
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static const struct snd_kcontrol_new max98520_right_input_mixer_controls[] = {
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SOC_DAPM_SINGLE("PCM_INPUT_CH0", MAX98520_R2044_PCM_RX_SRC2, 4, 0x0, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH1", MAX98520_R2044_PCM_RX_SRC2, 4, 0x1, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH2", MAX98520_R2044_PCM_RX_SRC2, 4, 0x2, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH3", MAX98520_R2044_PCM_RX_SRC2, 4, 0x3, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH4", MAX98520_R2044_PCM_RX_SRC2, 4, 0x4, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH5", MAX98520_R2044_PCM_RX_SRC2, 4, 0x5, 0),
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SOC_DAPM_SINGLE("PCM_INPUT_CH6", MAX98520_R2044_PCM_RX_SRC2, 4, 0x6, 0),
|
|
SOC_DAPM_SINGLE("PCM_INPUT_CH7", MAX98520_R2044_PCM_RX_SRC2, 4, 0x7, 0),
|
|
SOC_DAPM_SINGLE("PCM_INPUT_CH8", MAX98520_R2044_PCM_RX_SRC2, 4, 0x8, 0),
|
|
SOC_DAPM_SINGLE("PCM_INPUT_CH9", MAX98520_R2044_PCM_RX_SRC2, 4, 0x9, 0),
|
|
SOC_DAPM_SINGLE("PCM_INPUT_CH10", MAX98520_R2044_PCM_RX_SRC2, 4, 0xa, 0),
|
|
SOC_DAPM_SINGLE("PCM_INPUT_CH11", MAX98520_R2044_PCM_RX_SRC2, 4, 0xb, 0),
|
|
SOC_DAPM_SINGLE("PCM_INPUT_CH12", MAX98520_R2044_PCM_RX_SRC2, 4, 0xc, 0),
|
|
SOC_DAPM_SINGLE("PCM_INPUT_CH13", MAX98520_R2044_PCM_RX_SRC2, 4, 0xd, 0),
|
|
SOC_DAPM_SINGLE("PCM_INPUT_CH14", MAX98520_R2044_PCM_RX_SRC2, 4, 0xe, 0),
|
|
SOC_DAPM_SINGLE("PCM_INPUT_CH15", MAX98520_R2044_PCM_RX_SRC2, 4, 0xf, 0),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_widget max98520_dapm_widgets[] = {
|
|
SND_SOC_DAPM_DAC_E("Amp Enable", "HiFi Playback",
|
|
SND_SOC_NOPM, 0, 0, max98520_dac_event,
|
|
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
|
|
SND_SOC_DAPM_MUX("DAI Sel Mux", SND_SOC_NOPM, 0, 0, &max98520_dai_controls),
|
|
SND_SOC_DAPM_OUTPUT("BE_OUT"),
|
|
/* Left Input Selection */
|
|
SND_SOC_DAPM_MIXER("Left Input Selection", SND_SOC_NOPM, 0, 0,
|
|
&max98520_left_input_mixer_controls[0],
|
|
ARRAY_SIZE(max98520_left_input_mixer_controls)),
|
|
/* Right Input Selection */
|
|
SND_SOC_DAPM_MIXER("Right Input Selection", SND_SOC_NOPM, 0, 0,
|
|
&max98520_right_input_mixer_controls[0],
|
|
ARRAY_SIZE(max98520_right_input_mixer_controls)),
|
|
};
|
|
|
|
static const DECLARE_TLV_DB_SCALE(max98520_digital_tlv, -6300, 50, 1);
|
|
static const DECLARE_TLV_DB_SCALE(max98520_spk_tlv, -600, 300, 0);
|
|
|
|
static const DECLARE_TLV_DB_RANGE(max98520_dht_lim_thresh_tlv,
|
|
0, 15, TLV_DB_SCALE_ITEM(-1500, 100, 0),
|
|
);
|
|
|
|
static const DECLARE_TLV_DB_RANGE(max98520_dht_hysteresis_tlv,
|
|
0, 3, TLV_DB_SCALE_ITEM(100, 100, 0),
|
|
4, 7, TLV_DB_SCALE_ITEM(600, 200, 0),
|
|
);
|
|
|
|
static const DECLARE_TLV_DB_RANGE(max98520_dht_rotation_point_tlv,
|
|
0, 1, TLV_DB_SCALE_ITEM(-1500, 300, 0),
|
|
2, 4, TLV_DB_SCALE_ITEM(-1000, 200, 0),
|
|
5, 10, TLV_DB_SCALE_ITEM(-500, 100, 0),
|
|
);
|
|
|
|
static const DECLARE_TLV_DB_RANGE(max98520_dht_supply_hr_tlv,
|
|
0, 16, TLV_DB_SCALE_ITEM(-2000, 250, 0),
|
|
);
|
|
|
|
static const DECLARE_TLV_DB_RANGE(max98520_dht_max_atten_tlv,
|
|
1, 20, TLV_DB_SCALE_ITEM(-2000, 100, 0),
|
|
);
|
|
|
|
static const char * const max98520_dht_attack_rate_text[] = {
|
|
"20us", "40us", "80us", "160us", "320us", "640us",
|
|
"1.28ms", "2.56ms", "5.12ms", "10.24ms", "20.48ms", "40.96ms",
|
|
"81.92ms", "163.84ms"
|
|
};
|
|
|
|
static SOC_ENUM_SINGLE_DECL(max98520_dht_attack_rate_enum,
|
|
MAX98520_R20D4_DHT_CFG3, 0,
|
|
max98520_dht_attack_rate_text);
|
|
|
|
static const char * const max98520_dht_release_rate_text[] = {
|
|
"2ms", "4ms", "8ms", "16ms", "32ms", "64ms", "128ms", "256ms", "512ms",
|
|
"1.024s", "2.048s", "4.096s", "8.192s", "16.384s"
|
|
};
|
|
|
|
static SOC_ENUM_SINGLE_DECL(max98520_dht_release_rate_enum,
|
|
MAX98520_R20D5_DHT_CFG4, 0,
|
|
max98520_dht_release_rate_text);
|
|
|
|
static bool max98520_readable_register(struct device *dev, unsigned int reg)
|
|
{
|
|
switch (reg) {
|
|
case MAX98520_R2000_SW_RESET:
|
|
case MAX98520_R2027_THERM_FOLDBACK_EN:
|
|
case MAX98520_R2030_CLK_MON_CTRL:
|
|
case MAX98520_R2037_ERR_MON_CTRL:
|
|
case MAX98520_R204F_PCM_RX_EN:
|
|
case MAX98520_R209F_AMP_EN:
|
|
case MAX98520_R20CF_MEAS_ADC_CFG:
|
|
case MAX98520_R20D8_DHT_EN:
|
|
case MAX98520_R21FF_REVISION_ID:
|
|
case MAX98520_R2001_STATUS_1... MAX98520_R2002_STATUS_2:
|
|
case MAX98520_R2020_THERM_WARN_THRESH... MAX98520_R2023_THERM_FOLDBACK_SET:
|
|
case MAX98520_R2040_PCM_MODE_CFG... MAX98520_R2044_PCM_RX_SRC2:
|
|
case MAX98520_R2090_AMP_VOL_CTRL... MAX98520_R2092_AMP_DSP_CFG:
|
|
case MAX98520_R2094_SSM_CFG... MAX98520_R2095_AMP_CFG:
|
|
case MAX98520_R20B0_ADC_SR... MAX98520_R20BD_ADC_HIGH_TEMP_READBACK_LSB:
|
|
case MAX98520_R20D0_DHT_CFG1... MAX98520_R20D6_DHT_HYSTERESIS_CFG:
|
|
case MAX98520_R210E_AUTO_RESTART_BEHAVIOR... MAX98520_R210F_GLOBAL_EN:
|
|
case MAX98520_R2161_BOOST_TM1... MAX98520_R2163_BOOST_TM3:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
};
|
|
|
|
static bool max98520_volatile_reg(struct device *dev, unsigned int reg)
|
|
{
|
|
switch (reg) {
|
|
case MAX98520_R210F_GLOBAL_EN:
|
|
case MAX98520_R21FF_REVISION_ID:
|
|
case MAX98520_R2000_SW_RESET:
|
|
case MAX98520_R2001_STATUS_1 ... MAX98520_R2002_STATUS_2:
|
|
case MAX98520_R20B4_ADC_READBACK_CTRL
|
|
... MAX98520_R20BD_ADC_HIGH_TEMP_READBACK_LSB:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static const struct snd_kcontrol_new max98520_snd_controls[] = {
|
|
/* Volume */
|
|
SOC_SINGLE_TLV("Digital Volume", MAX98520_R2090_AMP_VOL_CTRL,
|
|
0, 0x7F, 1, max98520_digital_tlv),
|
|
SOC_SINGLE_TLV("Speaker Volume", MAX98520_R2091_AMP_PATH_GAIN,
|
|
0, 0x5, 0, max98520_spk_tlv),
|
|
/* Volume Ramp Up/Down Enable*/
|
|
SOC_SINGLE("Ramp Up Switch", MAX98520_R2092_AMP_DSP_CFG,
|
|
MAX98520_DSP_SPK_VOL_RMPUP_SHIFT, 1, 0),
|
|
SOC_SINGLE("Ramp Down Switch", MAX98520_R2092_AMP_DSP_CFG,
|
|
MAX98520_DSP_SPK_VOL_RMPDN_SHIFT, 1, 0),
|
|
/* Clock Monitor Enable */
|
|
SOC_SINGLE("CLK Monitor Switch", MAX98520_R2037_ERR_MON_CTRL,
|
|
MAX98520_CTRL_CMON_EN_SHIFT, 1, 0),
|
|
/* Clock Monitor Config */
|
|
SOC_SINGLE("CLKMON Autorestart Switch", MAX98520_R2030_CLK_MON_CTRL,
|
|
MAX98520_CMON_AUTORESTART_SHIFT, 1, 0),
|
|
/* Dither Enable */
|
|
SOC_SINGLE("Dither Switch", MAX98520_R2092_AMP_DSP_CFG,
|
|
MAX98520_DSP_SPK_DITH_EN_SHIFT, 1, 0),
|
|
/* DC Blocker Enable */
|
|
SOC_SINGLE("DC Blocker Switch", MAX98520_R2092_AMP_DSP_CFG,
|
|
MAX98520_DSP_SPK_DCBLK_EN_SHIFT, 1, 0),
|
|
/* Speaker Safe Mode Enable */
|
|
SOC_SINGLE("Speaker Safemode Switch", MAX98520_R2092_AMP_DSP_CFG,
|
|
MAX98520_DSP_SPK_SAFE_EN_SHIFT, 1, 0),
|
|
/* AMP SSM Enable */
|
|
SOC_SINGLE("CP Bypass Switch", MAX98520_R2094_SSM_CFG,
|
|
MAX98520_SSM_RCVR_MODE_SHIFT, 1, 0),
|
|
/* Dynamic Headroom Tracking */
|
|
SOC_SINGLE("DHT Switch", MAX98520_R20D8_DHT_EN, 0, 1, 0),
|
|
SOC_SINGLE("DHT Limiter Mode", MAX98520_R20D2_LIMITER_CFG2,
|
|
MAX98520_DHT_LIMITER_MODE_SHIFT, 1, 0),
|
|
SOC_SINGLE("DHT Hysteresis Switch", MAX98520_R20D6_DHT_HYSTERESIS_CFG,
|
|
MAX98520_DHT_HYSTERESIS_SWITCH_SHIFT, 1, 0),
|
|
SOC_SINGLE_TLV("DHT Rot Pnt", MAX98520_R20D0_DHT_CFG1,
|
|
MAX98520_DHT_VROT_PNT_SHIFT, 10, 1, max98520_dht_rotation_point_tlv),
|
|
SOC_SINGLE_TLV("DHT Supply Headroom", MAX98520_R20D1_LIMITER_CFG1,
|
|
MAX98520_DHT_SUPPLY_HR_SHIFT, 16, 0, max98520_dht_supply_hr_tlv),
|
|
SOC_SINGLE_TLV("DHT Limiter Threshold", MAX98520_R20D2_LIMITER_CFG2,
|
|
MAX98520_DHT_LIMITER_THRESHOLD_SHIFT, 0xF, 1, max98520_dht_lim_thresh_tlv),
|
|
SOC_SINGLE_TLV("DHT Max Attenuation", MAX98520_R20D3_DHT_CFG2,
|
|
MAX98520_DHT_MAX_ATTEN_SHIFT, 20, 1, max98520_dht_max_atten_tlv),
|
|
SOC_SINGLE_TLV("DHT Hysteresis", MAX98520_R20D6_DHT_HYSTERESIS_CFG,
|
|
MAX98520_DHT_HYSTERESIS_SHIFT, 0x7, 0, max98520_dht_hysteresis_tlv),
|
|
SOC_ENUM("DHT Attack Rate", max98520_dht_attack_rate_enum),
|
|
SOC_ENUM("DHT Release Rate", max98520_dht_release_rate_enum),
|
|
/* ADC configuration */
|
|
SOC_SINGLE("ADC PVDD CH Switch", MAX98520_R20CF_MEAS_ADC_CFG, 0, 1, 0),
|
|
SOC_SINGLE("ADC PVDD FLT Switch", MAX98520_R20B2_ADC_PVDD0_CFG, MAX98520_FLT_EN_SHIFT, 1, 0),
|
|
SOC_SINGLE("ADC TEMP FLT Switch", MAX98520_R20B3_ADC_THERMAL_CFG, MAX98520_FLT_EN_SHIFT, 1, 0),
|
|
SOC_SINGLE("ADC PVDD MSB", MAX98520_R20B6_ADC_PVDD_READBACK_MSB, 0, 0xFF, 0),
|
|
SOC_SINGLE("ADC PVDD LSB", MAX98520_R20B7_ADC_PVDD_READBACK_LSB, 0, 0x01, 0),
|
|
SOC_SINGLE("ADC TEMP MSB", MAX98520_R20B8_ADC_TEMP_READBACK_MSB, 0, 0xFF, 0),
|
|
SOC_SINGLE("ADC TEMP LSB", MAX98520_R20B9_ADC_TEMP_READBACK_LSB, 0, 0x01, 0),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route max98520_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 struct snd_soc_dai_driver max98520_dai[] = {
|
|
{
|
|
.name = "max98520-aif1",
|
|
.playback = {
|
|
.stream_name = "HiFi Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = MAX98520_RATES,
|
|
.formats = MAX98520_FORMATS,
|
|
},
|
|
.ops = &max98520_dai_ops,
|
|
}
|
|
|
|
};
|
|
|
|
static int max98520_probe(struct snd_soc_component *component)
|
|
{
|
|
struct max98520_priv *max98520 =
|
|
snd_soc_component_get_drvdata(component);
|
|
|
|
/* Software Reset */
|
|
regmap_write(max98520->regmap, MAX98520_R2000_SW_RESET, 1);
|
|
|
|
/* L/R mono mix configuration : "DAI Sel" for 0x2043 */
|
|
regmap_write(max98520->regmap, MAX98520_R2043_PCM_RX_SRC1, 0x2);
|
|
|
|
/* PCM input channles configuration : "Left Input Selection" for 0x2044 */
|
|
/* PCM input channles configuration : "Right Input Selection" for 0x2044 */
|
|
regmap_write(max98520->regmap, MAX98520_R2044_PCM_RX_SRC2, 0x10);
|
|
|
|
/* Enable DC blocker */
|
|
regmap_update_bits(max98520->regmap, MAX98520_R2092_AMP_DSP_CFG, 1, 1);
|
|
/* Enable Clock Monitor Auto-restart */
|
|
regmap_write(max98520->regmap, MAX98520_R2030_CLK_MON_CTRL, 0x1);
|
|
|
|
/* set Rx Enable */
|
|
regmap_update_bits(max98520->regmap,
|
|
MAX98520_R204F_PCM_RX_EN,
|
|
MAX98520_PCM_RX_EN_MASK,
|
|
1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __maybe_unused max98520_suspend(struct device *dev)
|
|
{
|
|
struct max98520_priv *max98520 = dev_get_drvdata(dev);
|
|
|
|
regcache_cache_only(max98520->regmap, true);
|
|
regcache_mark_dirty(max98520->regmap);
|
|
return 0;
|
|
}
|
|
|
|
static int __maybe_unused max98520_resume(struct device *dev)
|
|
{
|
|
struct max98520_priv *max98520 = dev_get_drvdata(dev);
|
|
|
|
regcache_cache_only(max98520->regmap, false);
|
|
regmap_write(max98520->regmap, MAX98520_R2000_SW_RESET, 1);
|
|
regcache_sync(max98520->regmap);
|
|
return 0;
|
|
}
|
|
|
|
static const struct dev_pm_ops max98520_pm = {
|
|
SET_SYSTEM_SLEEP_PM_OPS(max98520_suspend, max98520_resume)
|
|
};
|
|
|
|
static const struct snd_soc_component_driver soc_codec_dev_max98520 = {
|
|
.probe = max98520_probe,
|
|
.controls = max98520_snd_controls,
|
|
.num_controls = ARRAY_SIZE(max98520_snd_controls),
|
|
.dapm_widgets = max98520_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(max98520_dapm_widgets),
|
|
.dapm_routes = max98520_audio_map,
|
|
.num_dapm_routes = ARRAY_SIZE(max98520_audio_map),
|
|
.idle_bias_on = 1,
|
|
.use_pmdown_time = 1,
|
|
.endianness = 1,
|
|
};
|
|
|
|
static const struct regmap_config max98520_regmap = {
|
|
.reg_bits = 16,
|
|
.val_bits = 8,
|
|
.max_register = MAX98520_R21FF_REVISION_ID,
|
|
.reg_defaults = max98520_reg,
|
|
.num_reg_defaults = ARRAY_SIZE(max98520_reg),
|
|
.readable_reg = max98520_readable_register,
|
|
.volatile_reg = max98520_volatile_reg,
|
|
.cache_type = REGCACHE_RBTREE,
|
|
};
|
|
|
|
static void max98520_power_on(struct max98520_priv *max98520, bool poweron)
|
|
{
|
|
if (max98520->reset_gpio)
|
|
gpiod_set_value_cansleep(max98520->reset_gpio, !poweron);
|
|
}
|
|
|
|
static int max98520_i2c_probe(struct i2c_client *i2c)
|
|
{
|
|
int ret;
|
|
int reg = 0;
|
|
struct max98520_priv *max98520;
|
|
struct i2c_adapter *adapter = to_i2c_adapter(i2c->dev.parent);
|
|
|
|
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;
|
|
}
|
|
|
|
max98520 = devm_kzalloc(&i2c->dev, sizeof(*max98520), GFP_KERNEL);
|
|
|
|
if (!max98520)
|
|
return -ENOMEM;
|
|
|
|
i2c_set_clientdata(i2c, max98520);
|
|
|
|
/* regmap initialization */
|
|
max98520->regmap = devm_regmap_init_i2c(i2c, &max98520_regmap);
|
|
if (IS_ERR(max98520->regmap)) {
|
|
ret = PTR_ERR(max98520->regmap);
|
|
dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
/* Power on device */
|
|
max98520->reset_gpio = devm_gpiod_get_optional(&i2c->dev, "reset", GPIOD_OUT_HIGH);
|
|
if (max98520->reset_gpio) {
|
|
if (IS_ERR(max98520->reset_gpio)) {
|
|
ret = PTR_ERR(max98520->reset_gpio);
|
|
dev_err(&i2c->dev, "Unable to request GPIO pin: %d.\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
max98520_power_on(max98520, 1);
|
|
}
|
|
|
|
/* Check Revision ID */
|
|
ret = regmap_read(max98520->regmap, MAX98520_R21FF_REVISION_ID, ®);
|
|
if (ret < 0) {
|
|
dev_err(&i2c->dev,
|
|
"Failed to read: 0x%02X\n", MAX98520_R21FF_REVISION_ID);
|
|
return ret;
|
|
}
|
|
dev_info(&i2c->dev, "MAX98520 revisionID: 0x%02X\n", reg);
|
|
|
|
/* codec registration */
|
|
ret = devm_snd_soc_register_component(&i2c->dev,
|
|
&soc_codec_dev_max98520,
|
|
max98520_dai, ARRAY_SIZE(max98520_dai));
|
|
if (ret < 0)
|
|
dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct i2c_device_id max98520_i2c_id[] = {
|
|
{ "max98520", 0},
|
|
{ },
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(i2c, max98520_i2c_id);
|
|
|
|
#if defined(CONFIG_OF)
|
|
static const struct of_device_id max98520_of_match[] = {
|
|
{ .compatible = "maxim,max98520", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, max98520_of_match);
|
|
#endif
|
|
|
|
static struct i2c_driver max98520_i2c_driver = {
|
|
.driver = {
|
|
.name = "max98520",
|
|
.of_match_table = of_match_ptr(max98520_of_match),
|
|
.pm = &max98520_pm,
|
|
},
|
|
.probe_new = max98520_i2c_probe,
|
|
.id_table = max98520_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(max98520_i2c_driver)
|
|
|
|
MODULE_DESCRIPTION("ALSA SoC MAX98520 driver");
|
|
MODULE_AUTHOR("George Song <george.song@maximintegrated.com>");
|
|
MODULE_LICENSE("GPL");
|
|
|