--- /dev/null
+/*
+ * cs35l33.c -- CS35L33 ALSA SoC audio driver
+ *
+ * Copyright 2016 Cirrus Logic, Inc.
+ *
+ * Author: Paul Handrigan <paul.handrigan@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/workqueue.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <sound/cs35l33.h>
+#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
+#include <linux/regulator/machine.h>
+#include <linux/of_gpio.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+
+#include "cs35l33.h"
+
+#define CS35L33_BOOT_DELAY 50
+
+struct cs35l33_private {
+ struct snd_soc_codec *codec;
+ struct cs35l33_pdata pdata;
+ struct regmap *regmap;
+ struct gpio_desc *reset_gpio;
+ bool amp_cal;
+ int mclk_int;
+ struct regulator_bulk_data core_supplies[2];
+ int num_core_supplies;
+ bool is_tdm_mode;
+ bool enable_soft_ramp;
+};
+
+static const struct reg_default cs35l33_reg[] = {
+ {CS35L33_PWRCTL1, 0x85},
+ {CS35L33_PWRCTL2, 0xFE},
+ {CS35L33_CLK_CTL, 0x0C},
+ {CS35L33_BST_PEAK_CTL, 0x90},
+ {CS35L33_PROTECT_CTL, 0x55},
+ {CS35L33_BST_CTL1, 0x00},
+ {CS35L33_BST_CTL2, 0x01},
+ {CS35L33_ADSP_CTL, 0x00},
+ {CS35L33_ADC_CTL, 0xC8},
+ {CS35L33_DAC_CTL, 0x14},
+ {CS35L33_DIG_VOL_CTL, 0x00},
+ {CS35L33_CLASSD_CTL, 0x04},
+ {CS35L33_AMP_CTL, 0x90},
+ {CS35L33_INT_MASK_1, 0xFF},
+ {CS35L33_INT_MASK_2, 0xFF},
+ {CS35L33_DIAG_LOCK, 0x00},
+ {CS35L33_DIAG_CTRL_1, 0x40},
+ {CS35L33_DIAG_CTRL_2, 0x00},
+ {CS35L33_HG_MEMLDO_CTL, 0x62},
+ {CS35L33_HG_REL_RATE, 0x03},
+ {CS35L33_LDO_DEL, 0x12},
+ {CS35L33_HG_HEAD, 0x0A},
+ {CS35L33_HG_EN, 0x05},
+ {CS35L33_TX_VMON, 0x00},
+ {CS35L33_TX_IMON, 0x03},
+ {CS35L33_TX_VPMON, 0x02},
+ {CS35L33_TX_VBSTMON, 0x05},
+ {CS35L33_TX_FLAG, 0x06},
+ {CS35L33_TX_EN1, 0x00},
+ {CS35L33_TX_EN2, 0x00},
+ {CS35L33_TX_EN3, 0x00},
+ {CS35L33_TX_EN4, 0x00},
+ {CS35L33_RX_AUD, 0x40},
+ {CS35L33_RX_SPLY, 0x03},
+ {CS35L33_RX_ALIVE, 0x04},
+ {CS35L33_BST_CTL4, 0x63},
+};
+
+static const struct reg_sequence cs35l33_patch[] = {
+ { 0x00, 0x99, 0 },
+ { 0x59, 0x02, 0 },
+ { 0x52, 0x30, 0 },
+ { 0x39, 0x45, 0 },
+ { 0x57, 0x30, 0 },
+ { 0x2C, 0x68, 0 },
+ { 0x00, 0x00, 0 },
+};
+
+static bool cs35l33_volatile_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case CS35L33_DEVID_AB:
+ case CS35L33_DEVID_CD:
+ case CS35L33_DEVID_E:
+ case CS35L33_REV_ID:
+ case CS35L33_INT_STATUS_1:
+ case CS35L33_INT_STATUS_2:
+ case CS35L33_HG_STATUS:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool cs35l33_writeable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ /* these are read only registers */
+ case CS35L33_DEVID_AB:
+ case CS35L33_DEVID_CD:
+ case CS35L33_DEVID_E:
+ case CS35L33_REV_ID:
+ case CS35L33_INT_STATUS_1:
+ case CS35L33_INT_STATUS_2:
+ case CS35L33_HG_STATUS:
+ return false;
+ default:
+ return true;
+ }
+}
+
+static bool cs35l33_readable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case CS35L33_DEVID_AB:
+ case CS35L33_DEVID_CD:
+ case CS35L33_DEVID_E:
+ case CS35L33_REV_ID:
+ case CS35L33_PWRCTL1:
+ case CS35L33_PWRCTL2:
+ case CS35L33_CLK_CTL:
+ case CS35L33_BST_PEAK_CTL:
+ case CS35L33_PROTECT_CTL:
+ case CS35L33_BST_CTL1:
+ case CS35L33_BST_CTL2:
+ case CS35L33_ADSP_CTL:
+ case CS35L33_ADC_CTL:
+ case CS35L33_DAC_CTL:
+ case CS35L33_DIG_VOL_CTL:
+ case CS35L33_CLASSD_CTL:
+ case CS35L33_AMP_CTL:
+ case CS35L33_INT_MASK_1:
+ case CS35L33_INT_MASK_2:
+ case CS35L33_INT_STATUS_1:
+ case CS35L33_INT_STATUS_2:
+ case CS35L33_DIAG_LOCK:
+ case CS35L33_DIAG_CTRL_1:
+ case CS35L33_DIAG_CTRL_2:
+ case CS35L33_HG_MEMLDO_CTL:
+ case CS35L33_HG_REL_RATE:
+ case CS35L33_LDO_DEL:
+ case CS35L33_HG_HEAD:
+ case CS35L33_HG_EN:
+ case CS35L33_TX_VMON:
+ case CS35L33_TX_IMON:
+ case CS35L33_TX_VPMON:
+ case CS35L33_TX_VBSTMON:
+ case CS35L33_TX_FLAG:
+ case CS35L33_TX_EN1:
+ case CS35L33_TX_EN2:
+ case CS35L33_TX_EN3:
+ case CS35L33_TX_EN4:
+ case CS35L33_RX_AUD:
+ case CS35L33_RX_SPLY:
+ case CS35L33_RX_ALIVE:
+ case CS35L33_BST_CTL4:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static DECLARE_TLV_DB_SCALE(classd_ctl_tlv, 900, 100, 0);
+static DECLARE_TLV_DB_SCALE(dac_tlv, -10200, 50, 0);
+
+static const struct snd_kcontrol_new cs35l33_snd_controls[] = {
+
+ SOC_SINGLE_TLV("SPK Amp Volume", CS35L33_AMP_CTL,
+ 4, 0x09, 0, classd_ctl_tlv),
+ SOC_SINGLE_SX_TLV("DAC Volume", CS35L33_DIG_VOL_CTL,
+ 0, 0x34, 0xE4, dac_tlv),
+};
+
+static int cs35l33_spkrdrv_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 cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ if (!priv->amp_cal) {
+ usleep_range(8000, 9000);
+ priv->amp_cal = true;
+ regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL,
+ CS35L33_AMP_CAL, 0);
+ dev_dbg(codec->dev, "Amp calibration done\n");
+ }
+ dev_dbg(codec->dev, "Amp turned on\n");
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ dev_dbg(codec->dev, "Amp turned off\n");
+ break;
+ default:
+ dev_err(codec->dev, "Invalid event = 0x%x\n", event);
+ break;
+ }
+
+ return 0;
+}
+
+static int cs35l33_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 cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
+ unsigned int val;
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
+ CS35L33_PDN_BST, 0);
+ val = priv->is_tdm_mode ? 0 : CS35L33_PDN_TDM;
+ regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
+ CS35L33_PDN_TDM, val);
+ dev_dbg(codec->dev, "BST turned on\n");
+ break;
+ case SND_SOC_DAPM_POST_PMU:
+ dev_dbg(codec->dev, "SDIN turned on\n");
+ if (!priv->amp_cal) {
+ regmap_update_bits(priv->regmap, CS35L33_CLASSD_CTL,
+ CS35L33_AMP_CAL, CS35L33_AMP_CAL);
+ dev_dbg(codec->dev, "Amp calibration started\n");
+ usleep_range(10000, 11000);
+ }
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
+ CS35L33_PDN_TDM, CS35L33_PDN_TDM);
+ usleep_range(4000, 4100);
+ regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
+ CS35L33_PDN_BST, CS35L33_PDN_BST);
+ dev_dbg(codec->dev, "BST and SDIN turned off\n");
+ break;
+ default:
+ dev_err(codec->dev, "Invalid event = 0x%x\n", event);
+
+ }
+
+ return 0;
+}
+
+static int cs35l33_sdout_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 cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
+ unsigned int mask = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM;
+ unsigned int mask2 = CS35L33_SDOUT_3ST_TDM;
+ unsigned int val, val2;
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ if (priv->is_tdm_mode) {
+ /* set sdout_3st_i2s and reset pdn_tdm */
+ val = CS35L33_SDOUT_3ST_I2S;
+ /* reset sdout_3st_tdm */
+ val2 = 0;
+ } else {
+ /* reset sdout_3st_i2s and set pdn_tdm */
+ val = CS35L33_PDN_TDM;
+ /* set sdout_3st_tdm */
+ val2 = CS35L33_SDOUT_3ST_TDM;
+ }
+ dev_dbg(codec->dev, "SDOUT turned on\n");
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ val = CS35L33_SDOUT_3ST_I2S | CS35L33_PDN_TDM;
+ val2 = CS35L33_SDOUT_3ST_TDM;
+ dev_dbg(codec->dev, "SDOUT turned off\n");
+ break;
+ default:
+ dev_err(codec->dev, "Invalid event = 0x%x\n", event);
+ return 0;
+ }
+
+ regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
+ mask, val);
+ regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
+ mask2, val2);
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget cs35l33_dapm_widgets[] = {
+
+ SND_SOC_DAPM_OUTPUT("SPK"),
+ SND_SOC_DAPM_OUT_DRV_E("SPKDRV", CS35L33_PWRCTL1, 7, 1, NULL, 0,
+ cs35l33_spkrdrv_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+ SND_SOC_DAPM_AIF_IN_E("SDIN", NULL, 0, CS35L33_PWRCTL2,
+ 2, 1, cs35l33_sdin_event, SND_SOC_DAPM_PRE_PMU |
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+
+ SND_SOC_DAPM_INPUT("MON"),
+
+ SND_SOC_DAPM_ADC("VMON", NULL,
+ CS35L33_PWRCTL2, CS35L33_PDN_VMON_SHIFT, 1),
+ SND_SOC_DAPM_ADC("IMON", NULL,
+ CS35L33_PWRCTL2, CS35L33_PDN_IMON_SHIFT, 1),
+ SND_SOC_DAPM_ADC("VPMON", NULL,
+ CS35L33_PWRCTL2, CS35L33_PDN_VPMON_SHIFT, 1),
+ SND_SOC_DAPM_ADC("VBSTMON", NULL,
+ CS35L33_PWRCTL2, CS35L33_PDN_VBSTMON_SHIFT, 1),
+
+ SND_SOC_DAPM_AIF_OUT_E("SDOUT", NULL, 0, SND_SOC_NOPM, 0, 0,
+ cs35l33_sdout_event, SND_SOC_DAPM_PRE_PMU |
+ SND_SOC_DAPM_PRE_PMD),
+};
+
+static const struct snd_soc_dapm_route cs35l33_audio_map[] = {
+ {"SDIN", NULL, "CS35L33 Playback"},
+ {"SPKDRV", NULL, "SDIN"},
+ {"SPK", NULL, "SPKDRV"},
+
+ {"VMON", NULL, "MON"},
+ {"IMON", NULL, "MON"},
+
+ {"SDOUT", NULL, "VMON"},
+ {"SDOUT", NULL, "IMON"},
+ {"CS35L33 Capture", NULL, "SDOUT"},
+};
+
+static const struct snd_soc_dapm_route cs35l33_vphg_auto_route[] = {
+ {"SPKDRV", NULL, "VPMON"},
+ {"VPMON", NULL, "CS35L33 Playback"},
+};
+
+static const struct snd_soc_dapm_route cs35l33_vp_vbst_mon_route[] = {
+ {"SDOUT", NULL, "VPMON"},
+ {"VPMON", NULL, "MON"},
+ {"SDOUT", NULL, "VBSTMON"},
+ {"VBSTMON", NULL, "MON"},
+};
+
+static int cs35l33_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ unsigned int val;
+ struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
+ struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ break;
+ case SND_SOC_BIAS_PREPARE:
+ regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
+ CS35L33_PDN_ALL, 0);
+ regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
+ CS35L33_MCLKDIS, 0);
+ break;
+ case SND_SOC_BIAS_STANDBY:
+ regmap_update_bits(priv->regmap, CS35L33_PWRCTL1,
+ CS35L33_PDN_ALL, CS35L33_PDN_ALL);
+ regmap_read(priv->regmap, CS35L33_INT_STATUS_2, &val);
+ usleep_range(1000, 1100);
+ if (val & CS35L33_PDN_DONE)
+ regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
+ CS35L33_MCLKDIS, CS35L33_MCLKDIS);
+ break;
+ case SND_SOC_BIAS_OFF:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ dapm->bias_level = level;
+
+ return 0;
+}
+
+struct cs35l33_mclk_div {
+ int mclk;
+ int srate;
+ u8 adsp_rate;
+ u8 int_fs_ratio;
+};
+
+static const struct cs35l33_mclk_div cs35l33_mclk_coeffs[] = {
+ /* MCLK, Sample Rate, adsp_rate, int_fs_ratio */
+ {5644800, 11025, 0x4, CS35L33_INT_FS_RATE},
+ {5644800, 22050, 0x8, CS35L33_INT_FS_RATE},
+ {5644800, 44100, 0xC, CS35L33_INT_FS_RATE},
+
+ {6000000, 8000, 0x1, 0},
+ {6000000, 11025, 0x2, 0},
+ {6000000, 11029, 0x3, 0},
+ {6000000, 12000, 0x4, 0},
+ {6000000, 16000, 0x5, 0},
+ {6000000, 22050, 0x6, 0},
+ {6000000, 22059, 0x7, 0},
+ {6000000, 24000, 0x8, 0},
+ {6000000, 32000, 0x9, 0},
+ {6000000, 44100, 0xA, 0},
+ {6000000, 44118, 0xB, 0},
+ {6000000, 48000, 0xC, 0},
+
+ {6144000, 8000, 0x1, CS35L33_INT_FS_RATE},
+ {6144000, 12000, 0x4, CS35L33_INT_FS_RATE},
+ {6144000, 16000, 0x5, CS35L33_INT_FS_RATE},
+ {6144000, 24000, 0x8, CS35L33_INT_FS_RATE},
+ {6144000, 32000, 0x9, CS35L33_INT_FS_RATE},
+ {6144000, 48000, 0xC, CS35L33_INT_FS_RATE},
+};
+
+static int cs35l33_get_mclk_coeff(int mclk, int srate)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(cs35l33_mclk_coeffs); i++) {
+ if (cs35l33_mclk_coeffs[i].mclk == mclk &&
+ cs35l33_mclk_coeffs[i].srate == srate)
+ return i;
+ }
+ return -EINVAL;
+}
+
+static int cs35l33_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL,
+ CS35L33_MS_MASK, CS35L33_MS_MASK);
+ dev_dbg(codec->dev, "Audio port in master mode\n");
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ regmap_update_bits(priv->regmap, CS35L33_ADSP_CTL,
+ CS35L33_MS_MASK, 0);
+ dev_dbg(codec->dev, "Audio port in slave mode\n");
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_DSP_A:
+ /*
+ * tdm mode in cs35l33 resembles dsp-a mode very
+ * closely, it is dsp-a with fsync shifted left by half bclk
+ */
+ priv->is_tdm_mode = true;
+ dev_dbg(codec->dev, "Audio port in TDM mode\n");
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ priv->is_tdm_mode = false;
+ dev_dbg(codec->dev, "Audio port in I2S mode\n");
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int cs35l33_pcm_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 cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
+ int sample_size = params_width(params);
+ int coeff = cs35l33_get_mclk_coeff(priv->mclk_int, params_rate(params));
+
+ if (coeff < 0)
+ return coeff;
+
+ regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
+ CS35L33_ADSP_FS | CS35L33_INT_FS_RATE,
+ cs35l33_mclk_coeffs[coeff].int_fs_ratio
+ | cs35l33_mclk_coeffs[coeff].adsp_rate);
+
+ if (priv->is_tdm_mode) {
+ sample_size = (sample_size / 8) - 1;
+ if (sample_size > 2)
+ sample_size = 2;
+ regmap_update_bits(priv->regmap, CS35L33_RX_AUD,
+ CS35L33_AUDIN_RX_DEPTH,
+ sample_size << CS35L33_AUDIN_RX_DEPTH_SHIFT);
+ }
+
+ dev_dbg(codec->dev, "sample rate=%d, bits per sample=%d\n",
+ params_rate(params), params_width(params));
+
+ return 0;
+}
+
+static const unsigned int cs35l33_src_rates[] = {
+ 8000, 11025, 11029, 12000, 16000, 22050,
+ 22059, 24000, 32000, 44100, 44118, 48000
+};
+
+static const struct snd_pcm_hw_constraint_list cs35l33_constraints = {
+ .count = ARRAY_SIZE(cs35l33_src_rates),
+ .list = cs35l33_src_rates,
+};
+
+static int cs35l33_pcm_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ &cs35l33_constraints);
+ return 0;
+}
+
+static int cs35l33_set_tristate(struct snd_soc_dai *dai, int tristate)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
+
+ if (tristate) {
+ regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
+ CS35L33_SDOUT_3ST_I2S, CS35L33_SDOUT_3ST_I2S);
+ regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
+ CS35L33_SDOUT_3ST_TDM, CS35L33_SDOUT_3ST_TDM);
+ } else {
+ regmap_update_bits(priv->regmap, CS35L33_PWRCTL2,
+ CS35L33_SDOUT_3ST_I2S, 0);
+ regmap_update_bits(priv->regmap, CS35L33_CLK_CTL,
+ CS35L33_SDOUT_3ST_TDM, 0);
+ }
+
+ return 0;
+}
+
+static int cs35l33_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
+ unsigned int rx_mask, int slots, int slot_width)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
+ struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
+ unsigned int reg, bit_pos, i;
+ int slot, slot_num;
+
+ if (slot_width != 8)
+ return -EINVAL;
+
+ /* scan rx_mask for aud slot */
+ slot = ffs(rx_mask) - 1;
+ if (slot >= 0) {
+ regmap_update_bits(priv->regmap, CS35L33_RX_AUD,
+ CS35L33_X_LOC, slot);
+ dev_dbg(codec->dev, "Audio starts from slots %d", slot);
+ }
+
+ /*
+ * scan tx_mask: vmon(2 slots); imon (2 slots);
+ * vpmon (1 slot) vbstmon (1 slot)
+ */
+ slot = ffs(tx_mask) - 1;
+ slot_num = 0;
+
+ for (i = 0; i < 2 ; i++) {
+ /* disable vpmon/vbstmon: enable later if set in tx_mask */
+ regmap_update_bits(priv->regmap, CS35L33_TX_VPMON + i,
+ CS35L33_X_STATE | CS35L33_X_LOC, CS35L33_X_STATE
+ | CS35L33_X_LOC);
+ }
+
+ /* disconnect {vp,vbst}_mon routes: eanble later if set in tx_mask*/
+ snd_soc_dapm_del_routes(dapm, cs35l33_vp_vbst_mon_route,
+ ARRAY_SIZE(cs35l33_vp_vbst_mon_route));
+
+ while (slot >= 0) {
+ /* configure VMON_TX_LOC */
+ if (slot_num == 0) {
+ regmap_update_bits(priv->regmap, CS35L33_TX_VMON,
+ CS35L33_X_STATE | CS35L33_X_LOC, slot);
+ dev_dbg(codec->dev, "VMON enabled in slots %d-%d",
+ slot, slot + 1);
+ }
+
+ /* configure IMON_TX_LOC */
+ if (slot_num == 3) {
+ regmap_update_bits(priv->regmap, CS35L33_TX_IMON,
+ CS35L33_X_STATE | CS35L33_X_LOC, slot);
+ dev_dbg(codec->dev, "IMON enabled in slots %d-%d",
+ slot, slot + 1);
+ }
+
+ /* configure VPMON_TX_LOC */
+ if (slot_num == 4) {
+ regmap_update_bits(priv->regmap, CS35L33_TX_VPMON,
+ CS35L33_X_STATE | CS35L33_X_LOC, slot);
+ snd_soc_dapm_add_routes(dapm,
+ &cs35l33_vp_vbst_mon_route[0], 2);
+ dev_dbg(codec->dev, "VPMON enabled in slots %d", slot);
+ }
+
+ /* configure VBSTMON_TX_LOC */
+ if (slot_num == 5) {
+ regmap_update_bits(priv->regmap, CS35L33_TX_VBSTMON,
+ CS35L33_X_STATE | CS35L33_X_LOC, slot);
+ snd_soc_dapm_add_routes(dapm,
+ &cs35l33_vp_vbst_mon_route[2], 2);
+ dev_dbg(codec->dev,
+ "VBSTMON enabled in slots %d", slot);
+ }
+
+ /* Enable the relevant tx slot */
+ reg = CS35L33_TX_EN4 - (slot/8);
+ bit_pos = slot - ((slot / 8) * (8));
+ regmap_update_bits(priv->regmap, reg,
+ 1 << bit_pos, 1 << bit_pos);
+
+ tx_mask &= ~(1 << slot);
+ slot = ffs(tx_mask) - 1;
+ slot_num++;
+ }
+
+ return 0;
+}
+
+static int cs35l33_codec_set_sysclk(struct snd_soc_codec *codec,
+ int clk_id, int source, unsigned int freq, int dir)
+{
+ struct cs35l33_private *cs35l33 = snd_soc_codec_get_drvdata(codec);
+
+ switch (freq) {
+ case CS35L33_MCLK_5644:
+ case CS35L33_MCLK_6:
+ case CS35L33_MCLK_6144:
+ regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
+ CS35L33_MCLKDIV2, 0);
+ cs35l33->mclk_int = freq;
+ break;
+ case CS35L33_MCLK_11289:
+ case CS35L33_MCLK_12:
+ case CS35L33_MCLK_12288:
+ regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
+ CS35L33_MCLKDIV2, CS35L33_MCLKDIV2);
+ cs35l33->mclk_int = freq/2;
+ break;
+ default:
+ cs35l33->mclk_int = 0;
+ return -EINVAL;
+ }
+
+ dev_dbg(codec->dev, "external mclk freq=%d, internal mclk freq=%d\n",
+ freq, cs35l33->mclk_int);
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops cs35l33_ops = {
+ .startup = cs35l33_pcm_startup,
+ .set_tristate = cs35l33_set_tristate,
+ .set_fmt = cs35l33_set_dai_fmt,
+ .hw_params = cs35l33_pcm_hw_params,
+ .set_tdm_slot = cs35l33_set_tdm_slot,
+};
+
+static struct snd_soc_dai_driver cs35l33_dai = {
+ .name = "cs35l33-dai",
+ .id = 0,
+ .playback = {
+ .stream_name = "CS35L33 Playback",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = CS35L33_RATES,
+ .formats = CS35L33_FORMATS,
+ },
+ .capture = {
+ .stream_name = "CS35L33 Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = CS35L33_RATES,
+ .formats = CS35L33_FORMATS,
+ },
+ .ops = &cs35l33_ops,
+ .symmetric_rates = 1,
+};
+
+static int cs35l33_set_hg_data(struct snd_soc_codec *codec,
+ struct cs35l33_pdata *pdata)
+{
+ struct cs35l33_hg *hg_config = &pdata->hg_config;
+ struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
+ struct cs35l33_private *priv = snd_soc_codec_get_drvdata(codec);
+
+ if (hg_config->enable_hg_algo) {
+ regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
+ CS35L33_MEM_DEPTH_MASK,
+ hg_config->mem_depth << CS35L33_MEM_DEPTH_SHIFT);
+ regmap_write(priv->regmap, CS35L33_HG_REL_RATE,
+ hg_config->release_rate);
+ regmap_update_bits(priv->regmap, CS35L33_HG_HEAD,
+ CS35L33_HD_RM_MASK,
+ hg_config->hd_rm << CS35L33_HD_RM_SHIFT);
+ regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
+ CS35L33_LDO_THLD_MASK,
+ hg_config->ldo_thld << CS35L33_LDO_THLD_SHIFT);
+ regmap_update_bits(priv->regmap, CS35L33_HG_MEMLDO_CTL,
+ CS35L33_LDO_DISABLE_MASK,
+ hg_config->ldo_path_disable <<
+ CS35L33_LDO_DISABLE_SHIFT);
+ regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
+ CS35L33_LDO_ENTRY_DELAY_MASK,
+ hg_config->ldo_entry_delay <<
+ CS35L33_LDO_ENTRY_DELAY_SHIFT);
+ if (hg_config->vp_hg_auto) {
+ regmap_update_bits(priv->regmap, CS35L33_HG_EN,
+ CS35L33_VP_HG_AUTO_MASK,
+ CS35L33_VP_HG_AUTO_MASK);
+ snd_soc_dapm_add_routes(dapm, cs35l33_vphg_auto_route,
+ ARRAY_SIZE(cs35l33_vphg_auto_route));
+ }
+ regmap_update_bits(priv->regmap, CS35L33_HG_EN,
+ CS35L33_VP_HG_MASK,
+ hg_config->vp_hg << CS35L33_VP_HG_SHIFT);
+ regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
+ CS35L33_VP_HG_RATE_MASK,
+ hg_config->vp_hg_rate << CS35L33_VP_HG_RATE_SHIFT);
+ regmap_update_bits(priv->regmap, CS35L33_LDO_DEL,
+ CS35L33_VP_HG_VA_MASK,
+ hg_config->vp_hg_va << CS35L33_VP_HG_VA_SHIFT);
+ regmap_update_bits(priv->regmap, CS35L33_HG_EN,
+ CS35L33_CLASS_HG_EN_MASK, CS35L33_CLASS_HG_EN_MASK);
+ }
+ return 0;
+}
+
+static int cs35l33_set_bst_ipk(struct snd_soc_codec *codec, unsigned int bst)
+{
+ struct cs35l33_private *cs35l33 = snd_soc_codec_get_drvdata(codec);
+ int ret = 0, steps = 0;
+
+ /* Boost current in uA */
+ if (bst > 3600000 || bst < 1850000) {
+ dev_err(codec->dev, "Invalid boost current %d\n", bst);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ if (bst % 15625) {
+ dev_err(codec->dev, "Current not a multiple of 15625uA (%d)\n",
+ bst);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ while (bst > 1850000) {
+ bst -= 15625;
+ steps++;
+ }
+
+ regmap_write(cs35l33->regmap, CS35L33_BST_PEAK_CTL,
+ steps+0x70);
+
+err:
+ return ret;
+}
+
+static int cs35l33_probe(struct snd_soc_codec *codec)
+{
+ struct cs35l33_private *cs35l33 = snd_soc_codec_get_drvdata(codec);
+
+ cs35l33->codec = codec;
+ pm_runtime_get_sync(codec->dev);
+
+ regmap_update_bits(cs35l33->regmap, CS35L33_PROTECT_CTL,
+ CS35L33_ALIVE_WD_DIS, 0x8);
+ regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL2,
+ CS35L33_ALIVE_WD_DIS2,
+ CS35L33_ALIVE_WD_DIS2);
+
+ /* Set Platform Data */
+ regmap_update_bits(cs35l33->regmap, CS35L33_BST_CTL1,
+ CS35L33_BST_CTL_MASK, cs35l33->pdata.boost_ctl);
+ regmap_update_bits(cs35l33->regmap, CS35L33_CLASSD_CTL,
+ CS35L33_AMP_DRV_SEL_MASK,
+ cs35l33->pdata.amp_drv_sel << CS35L33_AMP_DRV_SEL_SHIFT);
+
+ if (cs35l33->pdata.boost_ipk)
+ cs35l33_set_bst_ipk(codec, cs35l33->pdata.boost_ipk);
+
+ if (cs35l33->enable_soft_ramp) {
+ snd_soc_update_bits(codec, CS35L33_DAC_CTL,
+ CS35L33_DIGSFT, CS35L33_DIGSFT);
+ snd_soc_update_bits(codec, CS35L33_DAC_CTL,
+ CS35L33_DSR_RATE, cs35l33->pdata.ramp_rate);
+ } else {
+ snd_soc_update_bits(codec, CS35L33_DAC_CTL,
+ CS35L33_DIGSFT, 0);
+ }
+
+ /* update IMON scaling rate if different from default of 0x8 */
+ if (cs35l33->pdata.imon_adc_scale != 0x8)
+ snd_soc_update_bits(codec, CS35L33_ADC_CTL,
+ CS35L33_IMON_SCALE, cs35l33->pdata.imon_adc_scale);
+
+ cs35l33_set_hg_data(codec, &(cs35l33->pdata));
+
+ /*
+ * unmask important interrupts that causes the chip to enter
+ * speaker safe mode and hence deserves user attention
+ */
+ regmap_update_bits(cs35l33->regmap, CS35L33_INT_MASK_1,
+ CS35L33_M_OTE | CS35L33_M_OTW | CS35L33_M_AMP_SHORT |
+ CS35L33_M_CAL_ERR, 0);
+
+ pm_runtime_put_sync(codec->dev);
+
+ return 0;
+}
+
+static struct snd_soc_codec_driver soc_codec_dev_cs35l33 = {
+ .probe = cs35l33_probe,
+
+ .set_bias_level = cs35l33_set_bias_level,
+ .set_sysclk = cs35l33_codec_set_sysclk,
+
+ .dapm_widgets = cs35l33_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(cs35l33_dapm_widgets),
+ .dapm_routes = cs35l33_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(cs35l33_audio_map),
+ .controls = cs35l33_snd_controls,
+ .num_controls = ARRAY_SIZE(cs35l33_snd_controls),
+
+ .idle_bias_off = true,
+};
+
+static const struct regmap_config cs35l33_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = CS35L33_MAX_REGISTER,
+ .reg_defaults = cs35l33_reg,
+ .num_reg_defaults = ARRAY_SIZE(cs35l33_reg),
+ .volatile_reg = cs35l33_volatile_register,
+ .readable_reg = cs35l33_readable_register,
+ .writeable_reg = cs35l33_writeable_register,
+ .cache_type = REGCACHE_RBTREE,
+ .use_single_rw = true,
+};
+
+static int cs35l33_runtime_resume(struct device *dev)
+{
+ struct cs35l33_private *cs35l33 = dev_get_drvdata(dev);
+ int ret;
+
+ dev_dbg(dev, "%s\n", __func__);
+
+ if (cs35l33->reset_gpio)
+ gpiod_set_value_cansleep(cs35l33->reset_gpio, 0);
+
+ ret = regulator_bulk_enable(cs35l33->num_core_supplies,
+ cs35l33->core_supplies);
+ if (ret != 0) {
+ dev_err(dev, "Failed to enable core supplies: %d\n", ret);
+ return ret;
+ }
+
+ regcache_cache_only(cs35l33->regmap, false);
+
+ if (cs35l33->reset_gpio)
+ gpiod_set_value_cansleep(cs35l33->reset_gpio, 1);
+
+ msleep(CS35L33_BOOT_DELAY);
+
+ ret = regcache_sync(cs35l33->regmap);
+ if (ret != 0) {
+ dev_err(dev, "Failed to restore register cache\n");
+ goto err;
+ }
+
+ return 0;
+
+err:
+ regcache_cache_only(cs35l33->regmap, true);
+ regulator_bulk_disable(cs35l33->num_core_supplies,
+ cs35l33->core_supplies);
+
+ return ret;
+}
+
+static int cs35l33_runtime_suspend(struct device *dev)
+{
+ struct cs35l33_private *cs35l33 = dev_get_drvdata(dev);
+
+ dev_dbg(dev, "%s\n", __func__);
+
+ /* redo the calibration in next power up */
+ cs35l33->amp_cal = false;
+
+ regcache_cache_only(cs35l33->regmap, true);
+ regcache_mark_dirty(cs35l33->regmap);
+ regulator_bulk_disable(cs35l33->num_core_supplies,
+ cs35l33->core_supplies);
+
+ return 0;
+}
+
+static const struct dev_pm_ops cs35l33_pm_ops = {
+ SET_RUNTIME_PM_OPS(cs35l33_runtime_suspend,
+ cs35l33_runtime_resume,
+ NULL)
+};
+
+static int cs35l33_get_hg_data(const struct device_node *np,
+ struct cs35l33_pdata *pdata)
+{
+ struct device_node *hg;
+ struct cs35l33_hg *hg_config = &pdata->hg_config;
+ u32 val32;
+
+ hg = of_get_child_by_name(np, "cirrus,hg-algo");
+ hg_config->enable_hg_algo = hg ? true : false;
+
+ if (hg_config->enable_hg_algo) {
+ if (of_property_read_u32(hg, "cirrus,mem-depth", &val32) >= 0)
+ hg_config->mem_depth = val32;
+ if (of_property_read_u32(hg, "cirrus,release-rate",
+ &val32) >= 0)
+ hg_config->release_rate = val32;
+ if (of_property_read_u32(hg, "cirrus,ldo-thld", &val32) >= 0)
+ hg_config->ldo_thld = val32;
+ if (of_property_read_u32(hg, "cirrus,ldo-path-disable",
+ &val32) >= 0)
+ hg_config->ldo_path_disable = val32;
+ if (of_property_read_u32(hg, "cirrus,ldo-entry-delay",
+ &val32) >= 0)
+ hg_config->ldo_entry_delay = val32;
+
+ hg_config->vp_hg_auto = of_property_read_bool(hg,
+ "cirrus,vp-hg-auto");
+
+ if (of_property_read_u32(hg, "cirrus,vp-hg", &val32) >= 0)
+ hg_config->vp_hg = val32;
+ if (of_property_read_u32(hg, "cirrus,vp-hg-rate", &val32) >= 0)
+ hg_config->vp_hg_rate = val32;
+ if (of_property_read_u32(hg, "cirrus,vp-hg-va", &val32) >= 0)
+ hg_config->vp_hg_va = val32;
+ }
+
+ of_node_put(hg);
+
+ return 0;
+}
+
+static irqreturn_t cs35l33_irq_thread(int irq, void *data)
+{
+ struct cs35l33_private *cs35l33 = data;
+ struct snd_soc_codec *codec = cs35l33->codec;
+ unsigned int sticky_val1, sticky_val2, current_val, mask1, mask2;
+
+ regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_2,
+ &sticky_val2);
+ regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1,
+ &sticky_val1);
+ regmap_read(cs35l33->regmap, CS35L33_INT_MASK_2, &mask2);
+ regmap_read(cs35l33->regmap, CS35L33_INT_MASK_1, &mask1);
+
+ /* Check to see if the unmasked bits are active,
+ * if not then exit.
+ */
+ if (!(sticky_val1 & ~mask1) && !(sticky_val2 & ~mask2))
+ return IRQ_NONE;
+
+ regmap_read(cs35l33->regmap, CS35L33_INT_STATUS_1,
+ ¤t_val);
+
+ /* handle the interrupts */
+
+ if (sticky_val1 & CS35L33_AMP_SHORT) {
+ dev_crit(codec->dev, "Amp short error\n");
+ if (!(current_val & CS35L33_AMP_SHORT)) {
+ dev_dbg(codec->dev,
+ "Amp short error release\n");
+ regmap_update_bits(cs35l33->regmap,
+ CS35L33_AMP_CTL,
+ CS35L33_AMP_SHORT_RLS, 0);
+ regmap_update_bits(cs35l33->regmap,
+ CS35L33_AMP_CTL,
+ CS35L33_AMP_SHORT_RLS,
+ CS35L33_AMP_SHORT_RLS);
+ regmap_update_bits(cs35l33->regmap,
+ CS35L33_AMP_CTL, CS35L33_AMP_SHORT_RLS,
+ 0);
+ }
+ }
+
+ if (sticky_val1 & CS35L33_CAL_ERR) {
+ dev_err(codec->dev, "Cal error\n");
+
+ /* redo the calibration in next power up */
+ cs35l33->amp_cal = false;
+
+ if (!(current_val & CS35L33_CAL_ERR)) {
+ dev_dbg(codec->dev, "Cal error release\n");
+ regmap_update_bits(cs35l33->regmap,
+ CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
+ 0);
+ regmap_update_bits(cs35l33->regmap,
+ CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
+ CS35L33_CAL_ERR_RLS);
+ regmap_update_bits(cs35l33->regmap,
+ CS35L33_AMP_CTL, CS35L33_CAL_ERR_RLS,
+ 0);
+ }
+ }
+
+ if (sticky_val1 & CS35L33_OTE) {
+ dev_crit(codec->dev, "Over temperature error\n");
+ if (!(current_val & CS35L33_OTE)) {
+ dev_dbg(codec->dev,
+ "Over temperature error release\n");
+ regmap_update_bits(cs35l33->regmap,
+ CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0);
+ regmap_update_bits(cs35l33->regmap,
+ CS35L33_AMP_CTL, CS35L33_OTE_RLS,
+ CS35L33_OTE_RLS);
+ regmap_update_bits(cs35l33->regmap,
+ CS35L33_AMP_CTL, CS35L33_OTE_RLS, 0);
+ }
+ }
+
+ if (sticky_val1 & CS35L33_OTW) {
+ dev_err(codec->dev, "Over temperature warning\n");
+ if (!(current_val & CS35L33_OTW)) {
+ dev_dbg(codec->dev,
+ "Over temperature warning release\n");
+ regmap_update_bits(cs35l33->regmap,
+ CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0);
+ regmap_update_bits(cs35l33->regmap,
+ CS35L33_AMP_CTL, CS35L33_OTW_RLS,
+ CS35L33_OTW_RLS);
+ regmap_update_bits(cs35l33->regmap,
+ CS35L33_AMP_CTL, CS35L33_OTW_RLS, 0);
+ }
+ }
+ if (CS35L33_ALIVE_ERR & sticky_val1)
+ dev_err(codec->dev, "ERROR: ADSPCLK Interrupt\n");
+
+ if (CS35L33_MCLK_ERR & sticky_val1)
+ dev_err(codec->dev, "ERROR: MCLK Interrupt\n");
+
+ if (CS35L33_VMON_OVFL & sticky_val2)
+ dev_err(codec->dev,
+ "ERROR: VMON Overflow Interrupt\n");
+
+ if (CS35L33_IMON_OVFL & sticky_val2)
+ dev_err(codec->dev,
+ "ERROR: IMON Overflow Interrupt\n");
+
+ if (CS35L33_VPMON_OVFL & sticky_val2)
+ dev_err(codec->dev,
+ "ERROR: VPMON Overflow Interrupt\n");
+
+ return IRQ_HANDLED;
+}
+
+static const char * const cs35l33_core_supplies[] = {
+ "VA",
+ "VP",
+};
+
+static int cs35l33_of_get_pdata(struct device *dev,
+ struct cs35l33_private *cs35l33)
+{
+ struct device_node *np = dev->of_node;
+ struct cs35l33_pdata *pdata = &cs35l33->pdata;
+ u32 val32;
+
+ if (!np)
+ return 0;
+
+ if (of_property_read_u32(np, "cirrus,boost-ctl", &val32) >= 0) {
+ pdata->boost_ctl = val32;
+ pdata->amp_drv_sel = 1;
+ }
+
+ if (of_property_read_u32(np, "cirrus,ramp-rate", &val32) >= 0) {
+ pdata->ramp_rate = val32;
+ cs35l33->enable_soft_ramp = true;
+ }
+
+ if (of_property_read_u32(np, "cirrus,boost-ipk", &val32) >= 0)
+ pdata->boost_ipk = val32;
+
+ if (of_property_read_u32(np, "cirrus,imon-adc-scale", &val32) >= 0) {
+ if ((val32 == 0x0) || (val32 == 0x7) || (val32 == 0x6))
+ pdata->imon_adc_scale = val32;
+ else
+ /* use default value */
+ pdata->imon_adc_scale = 0x8;
+ } else {
+ /* use default value */
+ pdata->imon_adc_scale = 0x8;
+ }
+
+ cs35l33_get_hg_data(np, pdata);
+
+ return 0;
+}
+
+static int cs35l33_i2c_probe(struct i2c_client *i2c_client,
+ const struct i2c_device_id *id)
+{
+ struct cs35l33_private *cs35l33;
+ struct cs35l33_pdata *pdata = dev_get_platdata(&i2c_client->dev);
+ int ret, devid, i;
+ unsigned int reg;
+
+ cs35l33 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs35l33_private),
+ GFP_KERNEL);
+ if (!cs35l33)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c_client, cs35l33);
+ cs35l33->regmap = devm_regmap_init_i2c(i2c_client, &cs35l33_regmap);
+ if (IS_ERR(cs35l33->regmap)) {
+ ret = PTR_ERR(cs35l33->regmap);
+ dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
+ return ret;
+ }
+
+ regcache_cache_only(cs35l33->regmap, true);
+
+ for (i = 0; i < ARRAY_SIZE(cs35l33_core_supplies); i++)
+ cs35l33->core_supplies[i].supply
+ = cs35l33_core_supplies[i];
+ cs35l33->num_core_supplies = ARRAY_SIZE(cs35l33_core_supplies);
+
+ ret = devm_regulator_bulk_get(&i2c_client->dev,
+ cs35l33->num_core_supplies,
+ cs35l33->core_supplies);
+ if (ret != 0) {
+ dev_err(&i2c_client->dev,
+ "Failed to request core supplies: %d\n",
+ ret);
+ return ret;
+ }
+
+ if (pdata) {
+ cs35l33->pdata = *pdata;
+ } else {
+ cs35l33_of_get_pdata(&i2c_client->dev, cs35l33);
+ pdata = &cs35l33->pdata;
+ }
+
+ ret = devm_request_threaded_irq(&i2c_client->dev, i2c_client->irq, NULL,
+ cs35l33_irq_thread, IRQF_ONESHOT | IRQF_TRIGGER_LOW,
+ "cs35l33", cs35l33);
+ if (ret != 0)
+ dev_warn(&i2c_client->dev, "Failed to request IRQ: %d\n", ret);
+
+ /* We could issue !RST or skip it based on AMP topology */
+ cs35l33->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev,
+ "reset-gpios", GPIOD_OUT_HIGH);
+
+ if (PTR_ERR(cs35l33->reset_gpio) == -ENOENT) {
+ dev_warn(&i2c_client->dev,
+ "%s WARNING: No reset gpio assigned\n", __func__);
+ } else if (IS_ERR(cs35l33->reset_gpio)) {
+ dev_err(&i2c_client->dev, "%s ERROR: Can't get reset GPIO\n",
+ __func__);
+ return PTR_ERR(cs35l33->reset_gpio);
+ }
+
+ ret = regulator_bulk_enable(cs35l33->num_core_supplies,
+ cs35l33->core_supplies);
+ if (ret != 0) {
+ dev_err(&i2c_client->dev,
+ "Failed to enable core supplies: %d\n",
+ ret);
+ goto err_irq;
+ }
+
+ if (cs35l33->reset_gpio)
+ gpiod_set_value_cansleep(cs35l33->reset_gpio, 1);
+
+ msleep(CS35L33_BOOT_DELAY);
+ regcache_cache_only(cs35l33->regmap, false);
+
+ /* initialize codec */
+ ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_AB, ®);
+ devid = (reg & 0xFF) << 12;
+ ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_CD, ®);
+ devid |= (reg & 0xFF) << 4;
+ ret = regmap_read(cs35l33->regmap, CS35L33_DEVID_E, ®);
+ devid |= (reg & 0xF0) >> 4;
+
+ if (devid != CS35L33_CHIP_ID) {
+ dev_err(&i2c_client->dev,
+ "CS35L33 Device ID (%X). Expected ID %X\n",
+ devid, CS35L33_CHIP_ID);
+ goto err_enable;
+ }
+
+ ret = regmap_read(cs35l33->regmap, CS35L33_REV_ID, ®);
+ if (ret < 0) {
+ dev_err(&i2c_client->dev, "Get Revision ID failed\n");
+ goto err_enable;
+ }
+
+ dev_info(&i2c_client->dev,
+ "Cirrus Logic CS35L33, Revision: %02X\n", ret & 0xFF);
+
+ ret = regmap_register_patch(cs35l33->regmap,
+ cs35l33_patch, ARRAY_SIZE(cs35l33_patch));
+ if (ret < 0) {
+ dev_err(&i2c_client->dev,
+ "Error in applying regmap patch: %d\n", ret);
+ goto err_enable;
+ }
+
+ /* disable mclk and tdm */
+ regmap_update_bits(cs35l33->regmap, CS35L33_CLK_CTL,
+ CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM,
+ CS35L33_MCLKDIS | CS35L33_SDOUT_3ST_TDM);
+
+ pm_runtime_set_autosuspend_delay(&i2c_client->dev, 100);
+ pm_runtime_use_autosuspend(&i2c_client->dev);
+ pm_runtime_set_active(&i2c_client->dev);
+ pm_runtime_enable(&i2c_client->dev);
+
+ ret = snd_soc_register_codec(&i2c_client->dev,
+ &soc_codec_dev_cs35l33, &cs35l33_dai, 1);
+ if (ret < 0) {
+ dev_err(&i2c_client->dev, "%s: Register codec failed\n",
+ __func__);
+ goto err_irq;
+ }
+
+ return 0;
+
+err_enable:
+ regulator_bulk_disable(cs35l33->num_core_supplies,
+ cs35l33->core_supplies);
+err_irq:
+ free_irq(i2c_client->irq, cs35l33);
+
+ return ret;
+}
+
+static int cs35l33_i2c_remove(struct i2c_client *client)
+{
+ struct cs35l33_private *cs35l33 = i2c_get_clientdata(client);
+
+ snd_soc_unregister_codec(&client->dev);
+
+ if (cs35l33->reset_gpio)
+ gpiod_set_value_cansleep(cs35l33->reset_gpio, 0);
+
+ pm_runtime_disable(&client->dev);
+ regulator_bulk_disable(cs35l33->num_core_supplies,
+ cs35l33->core_supplies);
+ free_irq(client->irq, cs35l33);
+
+ return 0;
+}
+
+static const struct of_device_id cs35l33_of_match[] = {
+ { .compatible = "cirrus,cs35l33", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, cs35l33_of_match);
+
+static const struct i2c_device_id cs35l33_id[] = {
+ {"cs35l33", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, cs35l33_id);
+
+static struct i2c_driver cs35l33_i2c_driver = {
+ .driver = {
+ .name = "cs35l33",
+ .owner = THIS_MODULE,
+ .pm = &cs35l33_pm_ops,
+ .of_match_table = cs35l33_of_match,
+
+ },
+ .id_table = cs35l33_id,
+ .probe = cs35l33_i2c_probe,
+ .remove = cs35l33_i2c_remove,
+
+};
+module_i2c_driver(cs35l33_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC CS35L33 driver");
+MODULE_AUTHOR("Paul Handrigan, Cirrus Logic Inc, <paul.handrigan@cirrus.com>");
+MODULE_LICENSE("GPL");
projects / linux-2.6-block.git / commitdiff