--- /dev/null
+/*
+ * 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;
+
+ cs35l35->codec = codec;
+
+ /* 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 (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 ret;
+}
+
+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;
+ struct snd_soc_codec *codec = cs35l35->codec;
+ 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(codec->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(codec->dev, "AMP Short Error\n");
+ /* error is no longer asserted; safe to reset */
+ if (!(current1 & CS35L35_AMP_SHORT)) {
+ dev_dbg(codec->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(codec->dev, "Over temperature warning\n");
+
+ /* error is no longer asserted; safe to reset */
+ if (!(current1 & CS35L35_OTW)) {
+ dev_dbg(codec->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(codec->dev, "Over temperature error\n");
+ /* error is no longer asserted; safe to reset */
+ if (!(current1 & CS35L35_OTE)) {
+ dev_dbg(codec->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(codec->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(codec->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(codec->dev, "Error: Reactive Brownout\n");
+
+ if (sticky4 & CS35L35_VMON_OVFL)
+ dev_dbg(codec->dev, "Error: VMON overflow\n");
+
+ if (sticky4 & CS35L35_IMON_OVFL)
+ dev_dbg(codec->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;
+
+ 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 cs35l35_platform_data *pdata =
+ dev_get_platdata(&i2c_client->dev);
+ int i;
+ int ret;
+ unsigned int devid = 0;
+ unsigned int reg;
+
+ cs35l35 = devm_kzalloc(&i2c_client->dev,
+ sizeof(struct cs35l35_private),
+ GFP_KERNEL);
+ if (!cs35l35)
+ return -ENOMEM;
+
+ 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(&i2c_client->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(&i2c_client->dev,
+ cs35l35->num_supplies,
+ cs35l35->supplies);
+ if (ret != 0) {
+ dev_err(&i2c_client->dev,
+ "Failed to request core supplies: %d\n",
+ ret);
+ return ret;
+ }
+
+ if (pdata) {
+ cs35l35->pdata = *pdata;
+ } else {
+ pdata = devm_kzalloc(&i2c_client->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(&i2c_client->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(&i2c_client->dev,
+ "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(cs35l35->reset_gpio)) {
+ ret = PTR_ERR(cs35l35->reset_gpio);
+ if (ret == -EBUSY) {
+ dev_info(&i2c_client->dev,
+ "Reset line busy, assuming shared reset\n");
+ cs35l35->reset_gpio = NULL;
+ } else {
+ dev_err(&i2c_client->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(&i2c_client->dev, i2c_client->irq, NULL,
+ cs35l35_irq, IRQF_ONESHOT | IRQF_TRIGGER_LOW,
+ "cs35l35", cs35l35);
+ if (ret != 0) {
+ dev_err(&i2c_client->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(&i2c_client->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(&i2c_client->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(&i2c_client->dev, "Failed to apply errata patch: %d\n",
+ ret);
+ goto err;
+ }
+
+ dev_info(&i2c_client->dev,
+ "Cirrus Logic CS35L35 (%x), Revision: %02X\n", devid,
+ ret & 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(&i2c_client->dev,
+ &soc_codec_dev_cs35l35, cs35l35_dai,
+ ARRAY_SIZE(cs35l35_dai));
+ if (ret < 0) {
+ dev_err(&i2c_client->dev,
+ "Failed to register codec: %d\n", ret);
+ goto err;
+ }
+
+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");
projects / platform / kernel / linux-rpi.git / commitdiff