/*
* cs35l35.c -- CS35L35 ALSA SoC audio driver
*
* Copyright 2017 Cirrus Logic, Inc.
*
* Author: Brian Austin <brian.austin@cirrus.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/gpio/consumer.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <linux/gpio.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <sound/cs35l35.h>
#include <linux/of_irq.h>
#include <linux/completion.h>
#include "cs35l35.h"
/*
* Some fields take zero as a valid value so use a high bit flag that won't
* get written to the device to mark those.
*/
#define CS35L35_VALID_PDATA 0x80000000
static const struct reg_default cs35l35_reg[] = {
{CS35L35_PWRCTL1, 0x01},
{CS35L35_PWRCTL2, 0x11},
{CS35L35_PWRCTL3, 0x00},
{CS35L35_CLK_CTL1, 0x04},
{CS35L35_CLK_CTL2, 0x10},
{CS35L35_CLK_CTL3, 0xCF},
{CS35L35_SP_FMT_CTL1, 0x20},
{CS35L35_SP_FMT_CTL2, 0x00},
{CS35L35_SP_FMT_CTL3, 0x02},
{CS35L35_MAG_COMP_CTL, 0x00},
{CS35L35_AMP_INP_DRV_CTL, 0x01},
{CS35L35_AMP_DIG_VOL_CTL, 0x12},
{CS35L35_AMP_DIG_VOL, 0x00},
{CS35L35_ADV_DIG_VOL, 0x00},
{CS35L35_PROTECT_CTL, 0x06},
{CS35L35_AMP_GAIN_AUD_CTL, 0x13},
{CS35L35_AMP_GAIN_PDM_CTL, 0x00},
{CS35L35_AMP_GAIN_ADV_CTL, 0x00},
{CS35L35_GPI_CTL, 0x00},
{CS35L35_BST_CVTR_V_CTL, 0x00},
{CS35L35_BST_PEAK_I, 0x07},
{CS35L35_BST_RAMP_CTL, 0x85},
{CS35L35_BST_CONV_COEF_1, 0x24},
{CS35L35_BST_CONV_COEF_2, 0x24},
{CS35L35_BST_CONV_SLOPE_COMP, 0x47},
{CS35L35_BST_CONV_SW_FREQ, 0x04},
{CS35L35_CLASS_H_CTL, 0x0B},
{CS35L35_CLASS_H_HEADRM_CTL, 0x0B},
{CS35L35_CLASS_H_RELEASE_RATE, 0x08},
{CS35L35_CLASS_H_FET_DRIVE_CTL, 0x41},
{CS35L35_CLASS_H_VP_CTL, 0xC5},
{CS35L35_VPBR_CTL, 0x0A},
{CS35L35_VPBR_VOL_CTL, 0x09},
{CS35L35_VPBR_TIMING_CTL, 0x6A},
{CS35L35_VPBR_MODE_VOL_CTL, 0x40},
{CS35L35_SPKR_MON_CTL, 0xC0},
{CS35L35_IMON_SCALE_CTL, 0x30},
{CS35L35_AUDIN_RXLOC_CTL, 0x00},
{CS35L35_ADVIN_RXLOC_CTL, 0x80},
{CS35L35_VMON_TXLOC_CTL, 0x00},
{CS35L35_IMON_TXLOC_CTL, 0x80},
{CS35L35_VPMON_TXLOC_CTL, 0x04},
{CS35L35_VBSTMON_TXLOC_CTL, 0x84},
{CS35L35_VPBR_STATUS_TXLOC_CTL, 0x04},
{CS35L35_ZERO_FILL_LOC_CTL, 0x00},
{CS35L35_AUDIN_DEPTH_CTL, 0x0F},
{CS35L35_SPKMON_DEPTH_CTL, 0x0F},
{CS35L35_SUPMON_DEPTH_CTL, 0x0F},
{CS35L35_ZEROFILL_DEPTH_CTL, 0x00},
{CS35L35_MULT_DEV_SYNCH1, 0x02},
{CS35L35_MULT_DEV_SYNCH2, 0x80},
{CS35L35_PROT_RELEASE_CTL, 0x00},
{CS35L35_DIAG_MODE_REG_LOCK, 0x00},
{CS35L35_DIAG_MODE_CTL_1, 0x40},
{CS35L35_DIAG_MODE_CTL_2, 0x00},
{CS35L35_INT_MASK_1, 0xFF},
{CS35L35_INT_MASK_2, 0xFF},
{CS35L35_INT_MASK_3, 0xFF},
{CS35L35_INT_MASK_4, 0xFF},
};
static bool cs35l35_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case CS35L35_INT_STATUS_1:
case CS35L35_INT_STATUS_2:
case CS35L35_INT_STATUS_3:
case CS35L35_INT_STATUS_4:
case CS35L35_PLL_STATUS:
case CS35L35_OTP_TRIM_STATUS:
return true;
default:
return false;
}
}
static bool cs35l35_readable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case CS35L35_DEVID_AB ... CS35L35_PWRCTL3:
case CS35L35_CLK_CTL1 ... CS35L35_SP_FMT_CTL3:
case CS35L35_MAG_COMP_CTL ... CS35L35_AMP_GAIN_AUD_CTL:
case CS35L35_AMP_GAIN_PDM_CTL ... CS35L35_BST_PEAK_I:
case CS35L35_BST_RAMP_CTL ... CS35L35_BST_CONV_SW_FREQ:
case CS35L35_CLASS_H_CTL ... CS35L35_CLASS_H_VP_CTL:
case CS35L35_CLASS_H_STATUS:
case CS35L35_VPBR_CTL ... CS35L35_VPBR_MODE_VOL_CTL:
case CS35L35_VPBR_ATTEN_STATUS:
case CS35L35_SPKR_MON_CTL:
case CS35L35_IMON_SCALE_CTL ... CS35L35_ZEROFILL_DEPTH_CTL:
case CS35L35_MULT_DEV_SYNCH1 ... CS35L35_PROT_RELEASE_CTL:
case CS35L35_DIAG_MODE_REG_LOCK ... CS35L35_DIAG_MODE_CTL_2:
case CS35L35_INT_MASK_1 ... CS35L35_PLL_STATUS:
case CS35L35_OTP_TRIM_STATUS:
return true;
default:
return false;
}
}
static bool cs35l35_precious_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case CS35L35_INT_STATUS_1:
case CS35L35_INT_STATUS_2:
case CS35L35_INT_STATUS_3:
case CS35L35_INT_STATUS_4:
case CS35L35_PLL_STATUS:
case CS35L35_OTP_TRIM_STATUS:
return true;
default:
return false;
}
}
static int cs35l35_sdin_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
struct cs35l35_private *cs35l35 = snd_soc_codec_get_drvdata(codec);
int ret = 0;
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
CS35L35_MCLK_DIS_MASK,
0 << CS35L35_MCLK_DIS_SHIFT);
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1,
CS35L35_DISCHG_FILT_MASK,
0 << CS35L35_DISCHG_FILT_SHIFT);
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1,
CS35L35_PDN_ALL_MASK, 0);
break;
case SND_SOC_DAPM_POST_PMD:
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1,
CS35L35_DISCHG_FILT_MASK,
1 << CS35L35_DISCHG_FILT_SHIFT);
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1,
CS35L35_PDN_ALL_MASK, 1);
reinit_completion(&cs35l35->pdn_done);
ret = wait_for_completion_timeout(&cs35l35->pdn_done,
msecs_to_jiffies(100));
if (ret == 0) {
dev_err(codec->dev, "TIMEOUT PDN_DONE did not complete in 100ms\n");
ret = -ETIMEDOUT;
}
regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
CS35L35_MCLK_DIS_MASK,
1 << CS35L35_MCLK_DIS_SHIFT);
break;
default:
dev_err(codec->dev, "Invalid event = 0x%x\n", event);
ret = -EINVAL;
}
return ret;
}
static int cs35l35_main_amp_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
struct cs35l35_private *cs35l35 = snd_soc_codec_get_drvdata(codec);
unsigned int reg[4];
int i;
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
if (cs35l35->pdata.bst_pdn_fet_on)
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
CS35L35_PDN_BST_MASK,
0 << CS35L35_PDN_BST_FETON_SHIFT);
else
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
CS35L35_PDN_BST_MASK,
0 << CS35L35_PDN_BST_FETOFF_SHIFT);
break;
case SND_SOC_DAPM_POST_PMU:
usleep_range(5000, 5100);
/* If in PDM mode we must use VP for Voltage control */
if (cs35l35->pdm_mode)
regmap_update_bits(cs35l35->regmap,
CS35L35_BST_CVTR_V_CTL,
CS35L35_BST_CTL_MASK,
0 << CS35L35_BST_CTL_SHIFT);
regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL,
CS35L35_AMP_MUTE_MASK, 0);
for (i = 0; i < 2; i++)
regmap_bulk_read(cs35l35->regmap, CS35L35_INT_STATUS_1,
®, ARRAY_SIZE(reg));
break;
case SND_SOC_DAPM_PRE_PMD:
regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL,
CS35L35_AMP_MUTE_MASK,
1 << CS35L35_AMP_MUTE_SHIFT);
if (cs35l35->pdata.bst_pdn_fet_on)
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
CS35L35_PDN_BST_MASK,
1 << CS35L35_PDN_BST_FETON_SHIFT);
else
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
CS35L35_PDN_BST_MASK,
1 << CS35L35_PDN_BST_FETOFF_SHIFT);
break;
case SND_SOC_DAPM_POST_PMD:
usleep_range(5000, 5100);
/*
* If PDM mode we should switch back to pdata value
* for Voltage control when we go down
*/
if (cs35l35->pdm_mode)
regmap_update_bits(cs35l35->regmap,
CS35L35_BST_CVTR_V_CTL,
CS35L35_BST_CTL_MASK,
cs35l35->pdata.bst_vctl
<< CS35L35_BST_CTL_SHIFT);
break;
default:
dev_err(codec->dev, "Invalid event = 0x%x\n", event);
}
return 0;
}
static DECLARE_TLV_DB_SCALE(amp_gain_tlv, 0, 1, 1);
static DECLARE_TLV_DB_SCALE(dig_vol_tlv, -10200, 50, 0);
static const struct snd_kcontrol_new cs35l35_aud_controls[] = {
SOC_SINGLE_SX_TLV("Digital Audio Volume", CS35L35_AMP_DIG_VOL,
0, 0x34, 0xE4, dig_vol_tlv),
SOC_SINGLE_TLV("Analog Audio Volume", CS35L35_AMP_GAIN_AUD_CTL, 0, 19, 0,
amp_gain_tlv),
SOC_SINGLE_TLV("PDM Volume", CS35L35_AMP_GAIN_PDM_CTL, 0, 19, 0,
amp_gain_tlv),
};
static const struct snd_kcontrol_new cs35l35_adv_controls[] = {
SOC_SINGLE_SX_TLV("Digital Advisory Volume", CS35L35_ADV_DIG_VOL,
0, 0x34, 0xE4, dig_vol_tlv),
SOC_SINGLE_TLV("Analog Advisory Volume", CS35L35_AMP_GAIN_ADV_CTL, 0, 19, 0,
amp_gain_tlv),
};
static const struct snd_soc_dapm_widget cs35l35_dapm_widgets[] = {
SND_SOC_DAPM_AIF_IN_E("SDIN", NULL, 0, CS35L35_PWRCTL3, 1, 1,
cs35l35_sdin_event, SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_AIF_OUT("SDOUT", NULL, 0, CS35L35_PWRCTL3, 2, 1),
SND_SOC_DAPM_OUTPUT("SPK"),
SND_SOC_DAPM_INPUT("VP"),
SND_SOC_DAPM_INPUT("VBST"),
SND_SOC_DAPM_INPUT("ISENSE"),
SND_SOC_DAPM_INPUT("VSENSE"),
SND_SOC_DAPM_ADC("VMON ADC", NULL, CS35L35_PWRCTL2, 7, 1),
SND_SOC_DAPM_ADC("IMON ADC", NULL, CS35L35_PWRCTL2, 6, 1),
SND_SOC_DAPM_ADC("VPMON ADC", NULL, CS35L35_PWRCTL3, 3, 1),
SND_SOC_DAPM_ADC("VBSTMON ADC", NULL, CS35L35_PWRCTL3, 4, 1),
SND_SOC_DAPM_ADC("CLASS H", NULL, CS35L35_PWRCTL2, 5, 1),
SND_SOC_DAPM_OUT_DRV_E("Main AMP", CS35L35_PWRCTL2, 0, 1, NULL, 0,
cs35l35_main_amp_event, SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_POST_PMU |
SND_SOC_DAPM_PRE_PMD),
};
static const struct snd_soc_dapm_route cs35l35_audio_map[] = {
{"VPMON ADC", NULL, "VP"},
{"VBSTMON ADC", NULL, "VBST"},
{"IMON ADC", NULL, "ISENSE"},
{"VMON ADC", NULL, "VSENSE"},
{"SDOUT", NULL, "IMON ADC"},
{"SDOUT", NULL, "VMON ADC"},
{"SDOUT", NULL, "VBSTMON ADC"},
{"SDOUT", NULL, "VPMON ADC"},
{"AMP Capture", NULL, "SDOUT"},
{"SDIN", NULL, "AMP Playback"},
{"CLASS H", NULL, "SDIN"},
{"Main AMP", NULL, "CLASS H"},
{"SPK", NULL, "Main AMP"},
};
static int cs35l35_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
{
struct snd_soc_codec *codec = codec_dai->codec;
struct cs35l35_private *cs35l35 = snd_soc_codec_get_drvdata(codec);
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
CS35L35_MS_MASK, 1 << CS35L35_MS_SHIFT);
cs35l35->slave_mode = false;
break;
case SND_SOC_DAIFMT_CBS_CFS:
regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
CS35L35_MS_MASK, 0 << CS35L35_MS_SHIFT);
cs35l35->slave_mode = true;
break;
default:
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
cs35l35->i2s_mode = true;
cs35l35->pdm_mode = false;
break;
case SND_SOC_DAIFMT_PDM:
cs35l35->pdm_mode = true;
cs35l35->i2s_mode = false;
break;
default:
return -EINVAL;
}
return 0;
}
struct cs35l35_sysclk_config {
int sysclk;
int srate;
u8 clk_cfg;
};
static struct cs35l35_sysclk_config cs35l35_clk_ctl[] = {
/* SYSCLK, Sample Rate, Serial Port Cfg */
{5644800, 44100, 0x00},
{5644800, 88200, 0x40},
{6144000, 48000, 0x10},
{6144000, 96000, 0x50},
{11289600, 44100, 0x01},
{11289600, 88200, 0x41},
{11289600, 176400, 0x81},
{12000000, 44100, 0x03},
{12000000, 48000, 0x13},
{12000000, 88200, 0x43},
{12000000, 96000, 0x53},
{12000000, 176400, 0x83},
{12000000, 192000, 0x93},
{12288000, 48000, 0x11},
{12288000, 96000, 0x51},
{12288000, 192000, 0x91},
{13000000, 44100, 0x07},
{13000000, 48000, 0x17},
{13000000, 88200, 0x47},
{13000000, 96000, 0x57},
{13000000, 176400, 0x87},
{13000000, 192000, 0x97},
{22579200, 44100, 0x02},
{22579200, 88200, 0x42},
{22579200, 176400, 0x82},
{24000000, 44100, 0x0B},
{24000000, 48000, 0x1B},
{24000000, 88200, 0x4B},
{24000000, 96000, 0x5B},
{24000000, 176400, 0x8B},
{24000000, 192000, 0x9B},
{24576000, 48000, 0x12},
{24576000, 96000, 0x52},
{24576000, 192000, 0x92},
{26000000, 44100, 0x0F},
{26000000, 48000, 0x1F},
{26000000, 88200, 0x4F},
{26000000, 96000, 0x5F},
{26000000, 176400, 0x8F},
{26000000, 192000, 0x9F},
};
static int cs35l35_get_clk_config(int sysclk, int srate)
{
int i;
for (i = 0; i < ARRAY_SIZE(cs35l35_clk_ctl); i++) {
if (cs35l35_clk_ctl[i].sysclk == sysclk &&
cs35l35_clk_ctl[i].srate == srate)
return cs35l35_clk_ctl[i].clk_cfg;
}
return -EINVAL;
}
static int cs35l35_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct cs35l35_private *cs35l35 = snd_soc_codec_get_drvdata(codec);
struct classh_cfg *classh = &cs35l35->pdata.classh_algo;
int srate = params_rate(params);
int ret = 0;
u8 sp_sclks;
int audin_format;
int errata_chk;
int clk_ctl = cs35l35_get_clk_config(cs35l35->sysclk, srate);
if (clk_ctl < 0) {
dev_err(codec->dev, "Invalid CLK:Rate %d:%d\n",
cs35l35->sysclk, srate);
return -EINVAL;
}
ret = regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL2,
CS35L35_CLK_CTL2_MASK, clk_ctl);
if (ret != 0) {
dev_err(codec->dev, "Failed to set port config %d\n", ret);
return ret;
}
/*
* Rev A0 Errata
* When configured for the weak-drive detection path (CH_WKFET_DIS = 0)
* the Class H algorithm does not enable weak-drive operation for
* nonzero values of CH_WKFET_DELAY if SP_RATE = 01 or 10
*/
errata_chk = clk_ctl & CS35L35_SP_RATE_MASK;
if (classh->classh_wk_fet_disable == 0x00 &&
(errata_chk == 0x01 || errata_chk == 0x03)) {
ret = regmap_update_bits(cs35l35->regmap,
CS35L35_CLASS_H_FET_DRIVE_CTL,
CS35L35_CH_WKFET_DEL_MASK,
0 << CS35L35_CH_WKFET_DEL_SHIFT);
if (ret != 0) {
dev_err(codec->dev, "Failed to set fet config %d\n",
ret);
return ret;
}
}
/*
* You can pull more Monitor data from the SDOUT pin than going to SDIN
* Just make sure your SCLK is fast enough to fill the frame
*/
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
switch (params_width(params)) {
case 8:
audin_format = CS35L35_SDIN_DEPTH_8;
break;
case 16:
audin_format = CS35L35_SDIN_DEPTH_16;
break;
case 24:
audin_format = CS35L35_SDIN_DEPTH_24;
break;
default:
dev_err(codec->dev, "Unsupported Width %d\n",
params_width(params));
return -EINVAL;
}
regmap_update_bits(cs35l35->regmap,
CS35L35_AUDIN_DEPTH_CTL,
CS35L35_AUDIN_DEPTH_MASK,
audin_format <<
CS35L35_AUDIN_DEPTH_SHIFT);
if (cs35l35->pdata.stereo) {
regmap_update_bits(cs35l35->regmap,
CS35L35_AUDIN_DEPTH_CTL,
CS35L35_ADVIN_DEPTH_MASK,
audin_format <<
CS35L35_ADVIN_DEPTH_SHIFT);
}
}
if (cs35l35->i2s_mode) {
/* We have to take the SCLK to derive num sclks
* to configure the CLOCK_CTL3 register correctly
*/
if ((cs35l35->sclk / srate) % 4) {
dev_err(codec->dev, "Unsupported sclk/fs ratio %d:%d\n",
cs35l35->sclk, srate);
return -EINVAL;
}
sp_sclks = ((cs35l35->sclk / srate) / 4) - 1;
/* Only certain ratios are supported in I2S Slave Mode */
if (cs35l35->slave_mode) {
switch (sp_sclks) {
case CS35L35_SP_SCLKS_32FS:
case CS35L35_SP_SCLKS_48FS:
case CS35L35_SP_SCLKS_64FS:
break;
default:
dev_err(codec->dev, "ratio not supported\n");
return -EINVAL;
}
} else {
/* Only certain ratios supported in I2S MASTER Mode */
switch (sp_sclks) {
case CS35L35_SP_SCLKS_32FS:
case CS35L35_SP_SCLKS_64FS:
break;
default:
dev_err(codec->dev, "ratio not supported\n");
return -EINVAL;
}
}
ret = regmap_update_bits(cs35l35->regmap,
CS35L35_CLK_CTL3,
CS35L35_SP_SCLKS_MASK, sp_sclks <<
CS35L35_SP_SCLKS_SHIFT);
if (ret != 0) {
dev_err(codec->dev, "Failed to set fsclk %d\n", ret);
return ret;
}
}
return ret;
}
static const unsigned int cs35l35_src_rates[] = {
44100, 48000, 88200, 96000, 176400, 192000
};
static const struct snd_pcm_hw_constraint_list cs35l35_constraints = {
.count = ARRAY_SIZE(cs35l35_src_rates),
.list = cs35l35_src_rates,
};
static int cs35l35_pcm_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct cs35l35_private *cs35l35 = snd_soc_codec_get_drvdata(codec);
if (!substream->runtime)
return 0;
snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE, &cs35l35_constraints);
regmap_update_bits(cs35l35->regmap, CS35L35_AMP_INP_DRV_CTL,
CS35L35_PDM_MODE_MASK,
0 << CS35L35_PDM_MODE_SHIFT);
return 0;
}
static const unsigned int cs35l35_pdm_rates[] = {
44100, 48000, 88200, 96000
};
static const struct snd_pcm_hw_constraint_list cs35l35_pdm_constraints = {
.count = ARRAY_SIZE(cs35l35_pdm_rates),
.list = cs35l35_pdm_rates,
};
static int cs35l35_pdm_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct cs35l35_private *cs35l35 = snd_soc_codec_get_drvdata(codec);
if (!substream->runtime)
return 0;
snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
&cs35l35_pdm_constraints);
regmap_update_bits(cs35l35->regmap, CS35L35_AMP_INP_DRV_CTL,
CS35L35_PDM_MODE_MASK,
1 << CS35L35_PDM_MODE_SHIFT);
return 0;
}
static int cs35l35_dai_set_sysclk(struct snd_soc_dai *dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = dai->codec;
struct cs35l35_private *cs35l35 = snd_soc_codec_get_drvdata(codec);
/* Need the SCLK Frequency regardless of sysclk source for I2S */
cs35l35->sclk = freq;
return 0;
}
static const struct snd_soc_dai_ops cs35l35_ops = {
.startup = cs35l35_pcm_startup,
.set_fmt = cs35l35_set_dai_fmt,
.hw_params = cs35l35_hw_params,
.set_sysclk = cs35l35_dai_set_sysclk,
};
static const struct snd_soc_dai_ops cs35l35_pdm_ops = {
.startup = cs35l35_pdm_startup,
.set_fmt = cs35l35_set_dai_fmt,
.hw_params = cs35l35_hw_params,
};
static struct snd_soc_dai_driver cs35l35_dai[] = {
{
.name = "cs35l35-pcm",
.id = 0,
.playback = {
.stream_name = "AMP Playback",
.channels_min = 1,
.channels_max = 8,
.rates = SNDRV_PCM_RATE_KNOT,
.formats = CS35L35_FORMATS,
},
.capture = {
.stream_name = "AMP Capture",
.channels_min = 1,
.channels_max = 8,
.rates = SNDRV_PCM_RATE_KNOT,
.formats = CS35L35_FORMATS,
},
.ops = &cs35l35_ops,
.symmetric_rates = 1,
},
{
.name = "cs35l35-pdm",
.id = 1,
.playback = {
.stream_name = "PDM Playback",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_KNOT,
.formats = CS35L35_FORMATS,
},
.ops = &cs35l35_pdm_ops,
},
};
static int cs35l35_codec_set_sysclk(struct snd_soc_codec *codec,
int clk_id, int source, unsigned int freq,
int dir)
{
struct cs35l35_private *cs35l35 = snd_soc_codec_get_drvdata(codec);
int clksrc;
int ret = 0;
switch (clk_id) {
case 0:
clksrc = CS35L35_CLK_SOURCE_MCLK;
break;
case 1:
clksrc = CS35L35_CLK_SOURCE_SCLK;
break;
case 2:
clksrc = CS35L35_CLK_SOURCE_PDM;
break;
default:
dev_err(codec->dev, "Invalid CLK Source\n");
return -EINVAL;
}
switch (freq) {
case 5644800:
case 6144000:
case 11289600:
case 12000000:
case 12288000:
case 13000000:
case 22579200:
case 24000000:
case 24576000:
case 26000000:
cs35l35->sysclk = freq;
break;
default:
dev_err(codec->dev, "Invalid CLK Frequency Input : %d\n", freq);
return -EINVAL;
}
ret = regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
CS35L35_CLK_SOURCE_MASK,
clksrc << CS35L35_CLK_SOURCE_SHIFT);
if (ret != 0) {
dev_err(codec->dev, "Failed to set sysclk %d\n", ret);
return ret;
}
return ret;
}
static int cs35l35_codec_probe(struct snd_soc_codec *codec)
{
struct cs35l35_private *cs35l35 = snd_soc_codec_get_drvdata(codec);
struct classh_cfg *classh = &cs35l35->pdata.classh_algo;
struct monitor_cfg *monitor_config = &cs35l35->pdata.mon_cfg;
int ret;
/* Set Platform Data */
if (cs35l35->pdata.bst_vctl)
regmap_update_bits(cs35l35->regmap, CS35L35_BST_CVTR_V_CTL,
CS35L35_BST_CTL_MASK,
cs35l35->pdata.bst_vctl);
if (cs35l35->pdata.bst_ipk)
regmap_update_bits(cs35l35->regmap, CS35L35_BST_PEAK_I,
CS35L35_BST_IPK_MASK,
cs35l35->pdata.bst_ipk <<
CS35L35_BST_IPK_SHIFT);
if (cs35l35->pdata.gain_zc)
regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL,
CS35L35_AMP_GAIN_ZC_MASK,
cs35l35->pdata.gain_zc <<
CS35L35_AMP_GAIN_ZC_SHIFT);
if (cs35l35->pdata.aud_channel)
regmap_update_bits(cs35l35->regmap,
CS35L35_AUDIN_RXLOC_CTL,
CS35L35_AUD_IN_LR_MASK,
cs35l35->pdata.aud_channel <<
CS35L35_AUD_IN_LR_SHIFT);
if (cs35l35->pdata.stereo) {
regmap_update_bits(cs35l35->regmap,
CS35L35_ADVIN_RXLOC_CTL,
CS35L35_ADV_IN_LR_MASK,
cs35l35->pdata.adv_channel <<
CS35L35_ADV_IN_LR_SHIFT);
if (cs35l35->pdata.shared_bst)
regmap_update_bits(cs35l35->regmap, CS35L35_CLASS_H_CTL,
CS35L35_CH_STEREO_MASK,
1 << CS35L35_CH_STEREO_SHIFT);
ret = snd_soc_add_codec_controls(codec, cs35l35_adv_controls,
ARRAY_SIZE(cs35l35_adv_controls));
if (ret)
return ret;
}
if (cs35l35->pdata.sp_drv_str)
regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
CS35L35_SP_DRV_MASK,
cs35l35->pdata.sp_drv_str <<
CS35L35_SP_DRV_SHIFT);
if (cs35l35->pdata.sp_drv_unused)
regmap_update_bits(cs35l35->regmap, CS35L35_SP_FMT_CTL3,
CS35L35_SP_I2S_DRV_MASK,
cs35l35->pdata.sp_drv_unused <<
CS35L35_SP_I2S_DRV_SHIFT);
if (classh->classh_algo_enable) {
if (classh->classh_bst_override)
regmap_update_bits(cs35l35->regmap,
CS35L35_CLASS_H_CTL,
CS35L35_CH_BST_OVR_MASK,
classh->classh_bst_override <<
CS35L35_CH_BST_OVR_SHIFT);
if (classh->classh_bst_max_limit)
regmap_update_bits(cs35l35->regmap,
CS35L35_CLASS_H_CTL,
CS35L35_CH_BST_LIM_MASK,
classh->classh_bst_max_limit <<
CS35L35_CH_BST_LIM_SHIFT);
if (classh->classh_mem_depth)
regmap_update_bits(cs35l35->regmap,
CS35L35_CLASS_H_CTL,
CS35L35_CH_MEM_DEPTH_MASK,
classh->classh_mem_depth <<
CS35L35_CH_MEM_DEPTH_SHIFT);
if (classh->classh_headroom)
regmap_update_bits(cs35l35->regmap,
CS35L35_CLASS_H_HEADRM_CTL,
CS35L35_CH_HDRM_CTL_MASK,
classh->classh_headroom <<
CS35L35_CH_HDRM_CTL_SHIFT);
if (classh->classh_release_rate)
regmap_update_bits(cs35l35->regmap,
CS35L35_CLASS_H_RELEASE_RATE,
CS35L35_CH_REL_RATE_MASK,
classh->classh_release_rate <<
CS35L35_CH_REL_RATE_SHIFT);
if (classh->classh_wk_fet_disable)
regmap_update_bits(cs35l35->regmap,
CS35L35_CLASS_H_FET_DRIVE_CTL,
CS35L35_CH_WKFET_DIS_MASK,
classh->classh_wk_fet_disable <<
CS35L35_CH_WKFET_DIS_SHIFT);
if (classh->classh_wk_fet_delay)
regmap_update_bits(cs35l35->regmap,
CS35L35_CLASS_H_FET_DRIVE_CTL,
CS35L35_CH_WKFET_DEL_MASK,
classh->classh_wk_fet_delay <<
CS35L35_CH_WKFET_DEL_SHIFT);
if (classh->classh_wk_fet_thld)
regmap_update_bits(cs35l35->regmap,
CS35L35_CLASS_H_FET_DRIVE_CTL,
CS35L35_CH_WKFET_THLD_MASK,
classh->classh_wk_fet_thld <<
CS35L35_CH_WKFET_THLD_SHIFT);
if (classh->classh_vpch_auto)
regmap_update_bits(cs35l35->regmap,
CS35L35_CLASS_H_VP_CTL,
CS35L35_CH_VP_AUTO_MASK,
classh->classh_vpch_auto <<
CS35L35_CH_VP_AUTO_SHIFT);
if (classh->classh_vpch_rate)
regmap_update_bits(cs35l35->regmap,
CS35L35_CLASS_H_VP_CTL,
CS35L35_CH_VP_RATE_MASK,
classh->classh_vpch_rate <<
CS35L35_CH_VP_RATE_SHIFT);
if (classh->classh_vpch_man)
regmap_update_bits(cs35l35->regmap,
CS35L35_CLASS_H_VP_CTL,
CS35L35_CH_VP_MAN_MASK,
classh->classh_vpch_man <<
CS35L35_CH_VP_MAN_SHIFT);
}
if (monitor_config->is_present) {
if (monitor_config->vmon_specs) {
regmap_update_bits(cs35l35->regmap,
CS35L35_SPKMON_DEPTH_CTL,
CS35L35_VMON_DEPTH_MASK,
monitor_config->vmon_dpth <<
CS35L35_VMON_DEPTH_SHIFT);
regmap_update_bits(cs35l35->regmap,
CS35L35_VMON_TXLOC_CTL,
CS35L35_MON_TXLOC_MASK,
monitor_config->vmon_loc <<
CS35L35_MON_TXLOC_SHIFT);
regmap_update_bits(cs35l35->regmap,
CS35L35_VMON_TXLOC_CTL,
CS35L35_MON_FRM_MASK,
monitor_config->vmon_frm <<
CS35L35_MON_FRM_SHIFT);
}
if (monitor_config->imon_specs) {
regmap_update_bits(cs35l35->regmap,
CS35L35_SPKMON_DEPTH_CTL,
CS35L35_IMON_DEPTH_MASK,
monitor_config->imon_dpth <<
CS35L35_IMON_DEPTH_SHIFT);
regmap_update_bits(cs35l35->regmap,
CS35L35_IMON_TXLOC_CTL,
CS35L35_MON_TXLOC_MASK,
monitor_config->imon_loc <<
CS35L35_MON_TXLOC_SHIFT);
regmap_update_bits(cs35l35->regmap,
CS35L35_IMON_TXLOC_CTL,
CS35L35_MON_FRM_MASK,
monitor_config->imon_frm <<
CS35L35_MON_FRM_SHIFT);
}
if (monitor_config->vpmon_specs) {
regmap_update_bits(cs35l35->regmap,
CS35L35_SUPMON_DEPTH_CTL,
CS35L35_VPMON_DEPTH_MASK,
monitor_config->vpmon_dpth <<
CS35L35_VPMON_DEPTH_SHIFT);
regmap_update_bits(cs35l35->regmap,
CS35L35_VPMON_TXLOC_CTL,
CS35L35_MON_TXLOC_MASK,
monitor_config->vpmon_loc <<
CS35L35_MON_TXLOC_SHIFT);
regmap_update_bits(cs35l35->regmap,
CS35L35_VPMON_TXLOC_CTL,
CS35L35_MON_FRM_MASK,
monitor_config->vpmon_frm <<
CS35L35_MON_FRM_SHIFT);
}
if (monitor_config->vbstmon_specs) {
regmap_update_bits(cs35l35->regmap,
CS35L35_SUPMON_DEPTH_CTL,
CS35L35_VBSTMON_DEPTH_MASK,
monitor_config->vpmon_dpth <<
CS35L35_VBSTMON_DEPTH_SHIFT);
regmap_update_bits(cs35l35->regmap,
CS35L35_VBSTMON_TXLOC_CTL,
CS35L35_MON_TXLOC_MASK,
monitor_config->vbstmon_loc <<
CS35L35_MON_TXLOC_SHIFT);
regmap_update_bits(cs35l35->regmap,
CS35L35_VBSTMON_TXLOC_CTL,
CS35L35_MON_FRM_MASK,
monitor_config->vbstmon_frm <<
CS35L35_MON_FRM_SHIFT);
}
if (monitor_config->vpbrstat_specs) {
regmap_update_bits(cs35l35->regmap,
CS35L35_SUPMON_DEPTH_CTL,
CS35L35_VPBRSTAT_DEPTH_MASK,
monitor_config->vpbrstat_dpth <<
CS35L35_VPBRSTAT_DEPTH_SHIFT);
regmap_update_bits(cs35l35->regmap,
CS35L35_VPBR_STATUS_TXLOC_CTL,
CS35L35_MON_TXLOC_MASK,
monitor_config->vpbrstat_loc <<
CS35L35_MON_TXLOC_SHIFT);
regmap_update_bits(cs35l35->regmap,
CS35L35_VPBR_STATUS_TXLOC_CTL,
CS35L35_MON_FRM_MASK,
monitor_config->vpbrstat_frm <<
CS35L35_MON_FRM_SHIFT);
}
if (monitor_config->zerofill_specs) {
regmap_update_bits(cs35l35->regmap,
CS35L35_SUPMON_DEPTH_CTL,
CS35L35_ZEROFILL_DEPTH_MASK,
monitor_config->zerofill_dpth <<
CS35L35_ZEROFILL_DEPTH_SHIFT);
regmap_update_bits(cs35l35->regmap,
CS35L35_ZERO_FILL_LOC_CTL,
CS35L35_MON_TXLOC_MASK,
monitor_config->zerofill_loc <<
CS35L35_MON_TXLOC_SHIFT);
regmap_update_bits(cs35l35->regmap,
CS35L35_ZERO_FILL_LOC_CTL,
CS35L35_MON_FRM_MASK,
monitor_config->zerofill_frm <<
CS35L35_MON_FRM_SHIFT);
}
}
return 0;
}
static struct snd_soc_codec_driver soc_codec_dev_cs35l35 = {
.probe = cs35l35_codec_probe,
.set_sysclk = cs35l35_codec_set_sysclk,
.component_driver = {
.dapm_widgets = cs35l35_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(cs35l35_dapm_widgets),
.dapm_routes = cs35l35_audio_map,
.num_dapm_routes = ARRAY_SIZE(cs35l35_audio_map),
.controls = cs35l35_aud_controls,
.num_controls = ARRAY_SIZE(cs35l35_aud_controls),
},
};
static struct regmap_config cs35l35_regmap = {
.reg_bits = 8,
.val_bits = 8,
.max_register = CS35L35_MAX_REGISTER,
.reg_defaults = cs35l35_reg,
.num_reg_defaults = ARRAY_SIZE(cs35l35_reg),
.volatile_reg = cs35l35_volatile_register,
.readable_reg = cs35l35_readable_register,
.precious_reg = cs35l35_precious_register,
.cache_type = REGCACHE_RBTREE,
};
static irqreturn_t cs35l35_irq(int irq, void *data)
{
struct cs35l35_private *cs35l35 = data;
unsigned int sticky1, sticky2, sticky3, sticky4;
unsigned int mask1, mask2, mask3, mask4, current1;
/* ack the irq by reading all status registers */
regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_4, &sticky4);
regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_3, &sticky3);
regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_2, &sticky2);
regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_1, &sticky1);
regmap_read(cs35l35->regmap, CS35L35_INT_MASK_4, &mask4);
regmap_read(cs35l35->regmap, CS35L35_INT_MASK_3, &mask3);
regmap_read(cs35l35->regmap, CS35L35_INT_MASK_2, &mask2);
regmap_read(cs35l35->regmap, CS35L35_INT_MASK_1, &mask1);
/* Check to see if unmasked bits are active */
if (!(sticky1 & ~mask1) && !(sticky2 & ~mask2) && !(sticky3 & ~mask3)
&& !(sticky4 & ~mask4))
return IRQ_NONE;
if (sticky2 & CS35L35_PDN_DONE)
complete(&cs35l35->pdn_done);
/* read the current values */
regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_1, ¤t1);
/* handle the interrupts */
if (sticky1 & CS35L35_CAL_ERR) {
dev_crit(cs35l35->dev, "Calibration Error\n");
/* error is no longer asserted; safe to reset */
if (!(current1 & CS35L35_CAL_ERR)) {
pr_debug("%s : Cal error release\n", __func__);
regmap_update_bits(cs35l35->regmap,
CS35L35_PROT_RELEASE_CTL,
CS35L35_CAL_ERR_RLS, 0);
regmap_update_bits(cs35l35->regmap,
CS35L35_PROT_RELEASE_CTL,
CS35L35_CAL_ERR_RLS,
CS35L35_CAL_ERR_RLS);
regmap_update_bits(cs35l35->regmap,
CS35L35_PROT_RELEASE_CTL,
CS35L35_CAL_ERR_RLS, 0);
}
}
if (sticky1 & CS35L35_AMP_SHORT) {
dev_crit(cs35l35->dev, "AMP Short Error\n");
/* error is no longer asserted; safe to reset */
if (!(current1 & CS35L35_AMP_SHORT)) {
dev_dbg(cs35l35->dev, "Amp short error release\n");
regmap_update_bits(cs35l35->regmap,
CS35L35_PROT_RELEASE_CTL,
CS35L35_SHORT_RLS, 0);
regmap_update_bits(cs35l35->regmap,
CS35L35_PROT_RELEASE_CTL,
CS35L35_SHORT_RLS,
CS35L35_SHORT_RLS);
regmap_update_bits(cs35l35->regmap,
CS35L35_PROT_RELEASE_CTL,
CS35L35_SHORT_RLS, 0);
}
}
if (sticky1 & CS35L35_OTW) {
dev_warn(cs35l35->dev, "Over temperature warning\n");
/* error is no longer asserted; safe to reset */
if (!(current1 & CS35L35_OTW)) {
dev_dbg(cs35l35->dev, "Over temperature warn release\n");
regmap_update_bits(cs35l35->regmap,
CS35L35_PROT_RELEASE_CTL,
CS35L35_OTW_RLS, 0);
regmap_update_bits(cs35l35->regmap,
CS35L35_PROT_RELEASE_CTL,
CS35L35_OTW_RLS,
CS35L35_OTW_RLS);
regmap_update_bits(cs35l35->regmap,
CS35L35_PROT_RELEASE_CTL,
CS35L35_OTW_RLS, 0);
}
}
if (sticky1 & CS35L35_OTE) {
dev_crit(cs35l35->dev, "Over temperature error\n");
/* error is no longer asserted; safe to reset */
if (!(current1 & CS35L35_OTE)) {
dev_dbg(cs35l35->dev, "Over temperature error release\n");
regmap_update_bits(cs35l35->regmap,
CS35L35_PROT_RELEASE_CTL,
CS35L35_OTE_RLS, 0);
regmap_update_bits(cs35l35->regmap,
CS35L35_PROT_RELEASE_CTL,
CS35L35_OTE_RLS,
CS35L35_OTE_RLS);
regmap_update_bits(cs35l35->regmap,
CS35L35_PROT_RELEASE_CTL,
CS35L35_OTE_RLS, 0);
}
}
if (sticky3 & CS35L35_BST_HIGH) {
dev_crit(cs35l35->dev, "VBST error: powering off!\n");
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
CS35L35_PDN_AMP, CS35L35_PDN_AMP);
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1,
CS35L35_PDN_ALL, CS35L35_PDN_ALL);
}
if (sticky3 & CS35L35_LBST_SHORT) {
dev_crit(cs35l35->dev, "LBST error: powering off!\n");
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
CS35L35_PDN_AMP, CS35L35_PDN_AMP);
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1,
CS35L35_PDN_ALL, CS35L35_PDN_ALL);
}
if (sticky2 & CS35L35_VPBR_ERR)
dev_dbg(cs35l35->dev, "Error: Reactive Brownout\n");
if (sticky4 & CS35L35_VMON_OVFL)
dev_dbg(cs35l35->dev, "Error: VMON overflow\n");
if (sticky4 & CS35L35_IMON_OVFL)
dev_dbg(cs35l35->dev, "Error: IMON overflow\n");
return IRQ_HANDLED;
}
static int cs35l35_handle_of_data(struct i2c_client *i2c_client,
struct cs35l35_platform_data *pdata)
{
struct device_node *np = i2c_client->dev.of_node;
struct device_node *classh, *signal_format;
struct classh_cfg *classh_config = &pdata->classh_algo;
struct monitor_cfg *monitor_config = &pdata->mon_cfg;
unsigned int val32 = 0;
u8 monitor_array[3];
int ret = 0;
if (!np)
return 0;
pdata->bst_pdn_fet_on = of_property_read_bool(np,
"cirrus,boost-pdn-fet-on");
ret = of_property_read_u32(np, "cirrus,boost-ctl-millivolt", &val32);
if (ret >= 0) {
if (val32 < 2600 || val32 > 9000) {
dev_err(&i2c_client->dev,
"Invalid Boost Voltage %d mV\n", val32);
return -EINVAL;
}
pdata->bst_vctl = ((val32 - 2600) / 100) + 1;
}
ret = of_property_read_u32(np, "cirrus,boost-peak-milliamp", &val32);
if (ret >= 0) {
if (val32 < 1680 || val32 > 4480) {
dev_err(&i2c_client->dev,
"Invalid Boost Peak Current %u mA\n", val32);
return -EINVAL;
}
pdata->bst_ipk = (val32 - 1680) / 110;
}
if (of_property_read_u32(np, "cirrus,sp-drv-strength", &val32) >= 0)
pdata->sp_drv_str = val32;
if (of_property_read_u32(np, "cirrus,sp-drv-unused", &val32) >= 0)
pdata->sp_drv_unused = val32 | CS35L35_VALID_PDATA;
pdata->stereo = of_property_read_bool(np, "cirrus,stereo-config");
if (pdata->stereo) {
ret = of_property_read_u32(np, "cirrus,audio-channel", &val32);
if (ret >= 0)
pdata->aud_channel = val32;
ret = of_property_read_u32(np, "cirrus,advisory-channel",
&val32);
if (ret >= 0)
pdata->adv_channel = val32;
pdata->shared_bst = of_property_read_bool(np,
"cirrus,shared-boost");
}
pdata->gain_zc = of_property_read_bool(np, "cirrus,amp-gain-zc");
classh = of_get_child_by_name(np, "cirrus,classh-internal-algo");
classh_config->classh_algo_enable = classh ? true : false;
if (classh_config->classh_algo_enable) {
classh_config->classh_bst_override =
of_property_read_bool(np, "cirrus,classh-bst-overide");
ret = of_property_read_u32(classh,
"cirrus,classh-bst-max-limit",
&val32);
if (ret >= 0) {
val32 |= CS35L35_VALID_PDATA;
classh_config->classh_bst_max_limit = val32;
}
ret = of_property_read_u32(classh,
"cirrus,classh-bst-max-limit",
&val32);
if (ret >= 0) {
val32 |= CS35L35_VALID_PDATA;
classh_config->classh_bst_max_limit = val32;
}
ret = of_property_read_u32(classh, "cirrus,classh-mem-depth",
&val32);
if (ret >= 0) {
val32 |= CS35L35_VALID_PDATA;
classh_config->classh_mem_depth = val32;
}
ret = of_property_read_u32(classh, "cirrus,classh-release-rate",
&val32);
if (ret >= 0)
classh_config->classh_release_rate = val32;
ret = of_property_read_u32(classh, "cirrus,classh-headroom",
&val32);
if (ret >= 0) {
val32 |= CS35L35_VALID_PDATA;
classh_config->classh_headroom = val32;
}
ret = of_property_read_u32(classh,
"cirrus,classh-wk-fet-disable",
&val32);
if (ret >= 0)
classh_config->classh_wk_fet_disable = val32;
ret = of_property_read_u32(classh, "cirrus,classh-wk-fet-delay",
&val32);
if (ret >= 0) {
val32 |= CS35L35_VALID_PDATA;
classh_config->classh_wk_fet_delay = val32;
}
ret = of_property_read_u32(classh, "cirrus,classh-wk-fet-thld",
&val32);
if (ret >= 0)
classh_config->classh_wk_fet_thld = val32;
ret = of_property_read_u32(classh, "cirrus,classh-vpch-auto",
&val32);
if (ret >= 0) {
val32 |= CS35L35_VALID_PDATA;
classh_config->classh_vpch_auto = val32;
}
ret = of_property_read_u32(classh, "cirrus,classh-vpch-rate",
&val32);
if (ret >= 0) {
val32 |= CS35L35_VALID_PDATA;
classh_config->classh_vpch_rate = val32;
}
ret = of_property_read_u32(classh, "cirrus,classh-vpch-man",
&val32);
if (ret >= 0)
classh_config->classh_vpch_man = val32;
}
of_node_put(classh);
/* frame depth location */
signal_format = of_get_child_by_name(np, "cirrus,monitor-signal-format");
monitor_config->is_present = signal_format ? true : false;
if (monitor_config->is_present) {
ret = of_property_read_u8_array(signal_format, "cirrus,imon",
monitor_array, ARRAY_SIZE(monitor_array));
if (!ret) {
monitor_config->imon_specs = true;
monitor_config->imon_dpth = monitor_array[0];
monitor_config->imon_loc = monitor_array[1];
monitor_config->imon_frm = monitor_array[2];
}
ret = of_property_read_u8_array(signal_format, "cirrus,vmon",
monitor_array, ARRAY_SIZE(monitor_array));
if (!ret) {
monitor_config->vmon_specs = true;
monitor_config->vmon_dpth = monitor_array[0];
monitor_config->vmon_loc = monitor_array[1];
monitor_config->vmon_frm = monitor_array[2];
}
ret = of_property_read_u8_array(signal_format, "cirrus,vpmon",
monitor_array, ARRAY_SIZE(monitor_array));
if (!ret) {
monitor_config->vpmon_specs = true;
monitor_config->vpmon_dpth = monitor_array[0];
monitor_config->vpmon_loc = monitor_array[1];
monitor_config->vpmon_frm = monitor_array[2];
}
ret = of_property_read_u8_array(signal_format, "cirrus,vbstmon",
monitor_array, ARRAY_SIZE(monitor_array));
if (!ret) {
monitor_config->vbstmon_specs = true;
monitor_config->vbstmon_dpth = monitor_array[0];
monitor_config->vbstmon_loc = monitor_array[1];
monitor_config->vbstmon_frm = monitor_array[2];
}
ret = of_property_read_u8_array(signal_format, "cirrus,vpbrstat",
monitor_array, ARRAY_SIZE(monitor_array));
if (!ret) {
monitor_config->vpbrstat_specs = true;
monitor_config->vpbrstat_dpth = monitor_array[0];
monitor_config->vpbrstat_loc = monitor_array[1];
monitor_config->vpbrstat_frm = monitor_array[2];
}
ret = of_property_read_u8_array(signal_format, "cirrus,zerofill",
monitor_array, ARRAY_SIZE(monitor_array));
if (!ret) {
monitor_config->zerofill_specs = true;
monitor_config->zerofill_dpth = monitor_array[0];
monitor_config->zerofill_loc = monitor_array[1];
monitor_config->zerofill_frm = monitor_array[2];
}
}
of_node_put(signal_format);
return 0;
}
/* Errata Rev A0 */
static const struct reg_sequence cs35l35_errata_patch[] = {
{ 0x7F, 0x99 },
{ 0x00, 0x99 },
{ 0x52, 0x22 },
{ 0x04, 0x14 },
{ 0x6D, 0x44 },
{ 0x24, 0x10 },
{ 0x58, 0xC4 },
{ 0x00, 0x98 },
{ 0x18, 0x08 },
{ 0x00, 0x00 },
{ 0x7F, 0x00 },
};
static int cs35l35_i2c_probe(struct i2c_client *i2c_client,
const struct i2c_device_id *id)
{
struct cs35l35_private *cs35l35;
struct device *dev = &i2c_client->dev;
struct cs35l35_platform_data *pdata = dev_get_platdata(dev);
int i;
int ret;
unsigned int devid = 0;
unsigned int reg;
cs35l35 = devm_kzalloc(dev, sizeof(struct cs35l35_private), GFP_KERNEL);
if (!cs35l35)
return -ENOMEM;
cs35l35->dev = dev;
i2c_set_clientdata(i2c_client, cs35l35);
cs35l35->regmap = devm_regmap_init_i2c(i2c_client, &cs35l35_regmap);
if (IS_ERR(cs35l35->regmap)) {
ret = PTR_ERR(cs35l35->regmap);
dev_err(dev, "regmap_init() failed: %d\n", ret);
goto err;
}
for (i = 0; i < ARRAY_SIZE(cs35l35_supplies); i++)
cs35l35->supplies[i].supply = cs35l35_supplies[i];
cs35l35->num_supplies = ARRAY_SIZE(cs35l35_supplies);
ret = devm_regulator_bulk_get(dev, cs35l35->num_supplies,
cs35l35->supplies);
if (ret != 0) {
dev_err(dev, "Failed to request core supplies: %d\n", ret);
return ret;
}
if (pdata) {
cs35l35->pdata = *pdata;
} else {
pdata = devm_kzalloc(dev, sizeof(struct cs35l35_platform_data),
GFP_KERNEL);
if (!pdata)
return -ENOMEM;
if (i2c_client->dev.of_node) {
ret = cs35l35_handle_of_data(i2c_client, pdata);
if (ret != 0)
return ret;
}
cs35l35->pdata = *pdata;
}
ret = regulator_bulk_enable(cs35l35->num_supplies,
cs35l35->supplies);
if (ret != 0) {
dev_err(dev, "Failed to enable core supplies: %d\n", ret);
return ret;
}
/* returning NULL can be valid if in stereo mode */
cs35l35->reset_gpio = devm_gpiod_get_optional(dev, "reset",
GPIOD_OUT_LOW);
if (IS_ERR(cs35l35->reset_gpio)) {
ret = PTR_ERR(cs35l35->reset_gpio);
cs35l35->reset_gpio = NULL;
if (ret == -EBUSY) {
dev_info(dev,
"Reset line busy, assuming shared reset\n");
} else {
dev_err(dev, "Failed to get reset GPIO: %d\n", ret);
goto err;
}
}
gpiod_set_value_cansleep(cs35l35->reset_gpio, 1);
init_completion(&cs35l35->pdn_done);
ret = devm_request_threaded_irq(dev, i2c_client->irq, NULL, cs35l35_irq,
IRQF_ONESHOT | IRQF_TRIGGER_LOW |
IRQF_SHARED, "cs35l35", cs35l35);
if (ret != 0) {
dev_err(dev, "Failed to request IRQ: %d\n", ret);
goto err;
}
/* initialize codec */
ret = regmap_read(cs35l35->regmap, CS35L35_DEVID_AB, ®);
devid = (reg & 0xFF) << 12;
ret = regmap_read(cs35l35->regmap, CS35L35_DEVID_CD, ®);
devid |= (reg & 0xFF) << 4;
ret = regmap_read(cs35l35->regmap, CS35L35_DEVID_E, ®);
devid |= (reg & 0xF0) >> 4;
if (devid != CS35L35_CHIP_ID) {
dev_err(dev, "CS35L35 Device ID (%X). Expected ID %X\n",
devid, CS35L35_CHIP_ID);
ret = -ENODEV;
goto err;
}
ret = regmap_read(cs35l35->regmap, CS35L35_REV_ID, ®);
if (ret < 0) {
dev_err(dev, "Get Revision ID failed: %d\n", ret);
goto err;
}
ret = regmap_register_patch(cs35l35->regmap, cs35l35_errata_patch,
ARRAY_SIZE(cs35l35_errata_patch));
if (ret < 0) {
dev_err(dev, "Failed to apply errata patch: %d\n", ret);
goto err;
}
dev_info(dev, "Cirrus Logic CS35L35 (%x), Revision: %02X\n",
devid, reg & 0xFF);
/* Set the INT Masks for critical errors */
regmap_write(cs35l35->regmap, CS35L35_INT_MASK_1,
CS35L35_INT1_CRIT_MASK);
regmap_write(cs35l35->regmap, CS35L35_INT_MASK_2,
CS35L35_INT2_CRIT_MASK);
regmap_write(cs35l35->regmap, CS35L35_INT_MASK_3,
CS35L35_INT3_CRIT_MASK);
regmap_write(cs35l35->regmap, CS35L35_INT_MASK_4,
CS35L35_INT4_CRIT_MASK);
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
CS35L35_PWR2_PDN_MASK,
CS35L35_PWR2_PDN_MASK);
if (cs35l35->pdata.bst_pdn_fet_on)
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
CS35L35_PDN_BST_MASK,
1 << CS35L35_PDN_BST_FETON_SHIFT);
else
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2,
CS35L35_PDN_BST_MASK,
1 << CS35L35_PDN_BST_FETOFF_SHIFT);
regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL3,
CS35L35_PWR3_PDN_MASK,
CS35L35_PWR3_PDN_MASK);
regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL,
CS35L35_AMP_MUTE_MASK, 1 << CS35L35_AMP_MUTE_SHIFT);
ret = snd_soc_register_codec(dev, &soc_codec_dev_cs35l35, cs35l35_dai,
ARRAY_SIZE(cs35l35_dai));
if (ret < 0) {
dev_err(dev, "Failed to register codec: %d\n", ret);
goto err;
}
return 0;
err:
regulator_bulk_disable(cs35l35->num_supplies,
cs35l35->supplies);
gpiod_set_value_cansleep(cs35l35->reset_gpio, 0);
return ret;
}
static int cs35l35_i2c_remove(struct i2c_client *client)
{
snd_soc_unregister_codec(&client->dev);
return 0;
}
static const struct of_device_id cs35l35_of_match[] = {
{.compatible = "cirrus,cs35l35"},
{},
};
MODULE_DEVICE_TABLE(of, cs35l35_of_match);
static const struct i2c_device_id cs35l35_id[] = {
{"cs35l35", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, cs35l35_id);
static struct i2c_driver cs35l35_i2c_driver = {
.driver = {
.name = "cs35l35",
.of_match_table = cs35l35_of_match,
},
.id_table = cs35l35_id,
.probe = cs35l35_i2c_probe,
.remove = cs35l35_i2c_remove,
};
module_i2c_driver(cs35l35_i2c_driver);
MODULE_DESCRIPTION("ASoC CS35L35 driver");
MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>");
MODULE_LICENSE("GPL");
