diff options
Diffstat (limited to 'sound/soc/codecs/wsa881x-analog.c')
| -rw-r--r-- | sound/soc/codecs/wsa881x-analog.c | 1445 |
1 files changed, 1445 insertions, 0 deletions
diff --git a/sound/soc/codecs/wsa881x-analog.c b/sound/soc/codecs/wsa881x-analog.c new file mode 100644 index 000000000000..fa1d099e082a --- /dev/null +++ b/sound/soc/codecs/wsa881x-analog.c @@ -0,0 +1,1445 @@ +/* + * Copyright (c) 2015-2016, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/of_gpio.h> +#include <linux/platform_device.h> +#include <linux/device.h> +#include <linux/printk.h> +#include <linux/bitops.h> +#include <linux/regulator/consumer.h> +#include <linux/pm_runtime.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/tlv.h> +#include <sound/q6afe-v2.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/kernel.h> +#include <linux/gpio.h> +#include <linux/regmap.h> +#include "wsa881x-analog.h" +#include "wsa881x-temp-sensor.h" +#include "../msm/msm-audio-pinctrl.h" + +#define SPK_GAIN_12DB 4 +#define WIDGET_NAME_MAX_SIZE 80 + +/* + * Private data Structure for wsa881x. All parameters related to + * WSA881X codec needs to be defined here. + */ +struct wsa881x_pdata { + struct regmap *regmap[2]; + struct i2c_client *client[2]; + struct snd_soc_codec *codec; + + /* track wsa881x status during probe */ + int status; + bool boost_enable; + bool visense_enable; + int spk_pa_gain; + struct i2c_msg xfer_msg[2]; + struct mutex xfer_lock; + bool regmap_flag; + bool wsa_active; + int index; + int (*enable_mclk)(struct snd_soc_card *, bool); + struct wsa881x_tz_priv tz_pdata; + int bg_cnt; + int clk_cnt; + int enable_cnt; + int version; + struct mutex bg_lock; + struct mutex res_lock; + struct delayed_work ocp_ctl_work; +}; + +enum { + WSA881X_STATUS_PROBING, + WSA881X_STATUS_I2C, +}; + +#define WSA881X_OCP_CTL_TIMER_SEC 2 +#define WSA881X_OCP_CTL_TEMP_CELSIUS 25 +#define WSA881X_OCP_CTL_POLL_TIMER_SEC 60 + +static int wsa881x_ocp_poll_timer_sec = WSA881X_OCP_CTL_POLL_TIMER_SEC; +module_param(wsa881x_ocp_poll_timer_sec, int, + S_IRUGO | S_IWUSR | S_IWGRP); +MODULE_PARM_DESC(wsa881x_ocp_poll_timer_sec, "timer for ocp ctl polling"); + +static int32_t wsa881x_resource_acquire(struct snd_soc_codec *codec, + bool enable); + +const char *wsa_tz_names[] = {"wsa881x.0e", "wsa881x.0f"}; + +struct wsa881x_pdata wsa_pdata[MAX_WSA881X_DEVICE]; + +static bool pinctrl_init; + +static int wsa881x_populate_dt_pdata(struct device *dev); +static int wsa881x_reset(struct wsa881x_pdata *pdata, bool enable); +static int wsa881x_startup(struct wsa881x_pdata *pdata); +static int wsa881x_shutdown(struct wsa881x_pdata *pdata); + +static int delay_array_msec[] = {10, 20, 30, 40, 50}; + +static int wsa881x_i2c_addr = -1; +static int wsa881x_probing_count; +static int wsa881x_presence_count; + +static const char * const wsa881x_spk_pa_gain_text[] = { +"POS_13P5_DB", "POS_12_DB", "POS_10P5_DB", "POS_9_DB", "POS_7P5_DB", +"POS_6_DB", "POS_4P5_DB", "POS_3_DB", "POS_1P5_DB", "POS_0_DB"}; + +static const struct soc_enum wsa881x_spk_pa_gain_enum[] = { + SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(wsa881x_spk_pa_gain_text), + wsa881x_spk_pa_gain_text), +}; + +static int wsa881x_spk_pa_gain_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + ucontrol->value.integer.value[0] = wsa881x->spk_pa_gain; + + dev_dbg(codec->dev, "%s: spk_pa_gain = %ld\n", __func__, + ucontrol->value.integer.value[0]); + + return 0; +} + +static int wsa881x_spk_pa_gain_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + if (ucontrol->value.integer.value[0] < 0 || + ucontrol->value.integer.value[0] > 0xC) { + dev_err(codec->dev, "%s: Unsupported gain val %ld\n", + __func__, ucontrol->value.integer.value[0]); + return -EINVAL; + } + wsa881x->spk_pa_gain = ucontrol->value.integer.value[0]; + dev_dbg(codec->dev, "%s: ucontrol->value.integer.value[0] = %ld\n", + __func__, ucontrol->value.integer.value[0]); + + return 0; +} + +static int get_i2c_wsa881x_device_index(u16 reg) +{ + u16 mask = 0x0f00; + int value = 0; + + value = ((reg & mask) >> 8) & 0x000f; + + switch (value) { + case 0: + return 0; + case 1: + return 1; + default: + break; + } + return -EINVAL; +} + +static int wsa881x_i2c_write_device(struct wsa881x_pdata *wsa881x, + unsigned int reg, unsigned int val) +{ + int i = 0, rc = 0; + int wsa881x_index; + struct i2c_msg *msg; + int ret = 0; + int bytes = 1; + u8 reg_addr = 0; + u8 data[bytes + 1]; + + wsa881x_index = get_i2c_wsa881x_device_index(reg); + if (wsa881x_index < 0) { + pr_err("%s:invalid register to write\n", __func__); + return -EINVAL; + } + if (wsa881x->regmap_flag) { + rc = regmap_write(wsa881x->regmap[wsa881x_index], reg, val); + for (i = 0; rc && i < ARRAY_SIZE(delay_array_msec); i++) { + pr_err("Failed writing reg=%u - retry(%d)\n", reg, i); + /* retry after delay of increasing order */ + msleep(delay_array_msec[i]); + rc = regmap_write(wsa881x->regmap[wsa881x_index], + reg, val); + } + if (rc) + pr_err("Failed writing reg=%u rc=%d\n", reg, rc); + else + pr_err("write success register = %x val = %x\n", + reg, val); + } else { + reg_addr = (u8)reg; + msg = &wsa881x->xfer_msg[0]; + msg->addr = wsa881x->client[wsa881x_index]->addr; + msg->len = bytes + 1; + msg->flags = 0; + data[0] = reg; + data[1] = (u8)val; + msg->buf = data; + ret = i2c_transfer(wsa881x->client[wsa881x_index]->adapter, + wsa881x->xfer_msg, 1); + /* Try again if the write fails */ + if (ret != 1) { + ret = i2c_transfer( + wsa881x->client[wsa881x_index]->adapter, + wsa881x->xfer_msg, 1); + if (ret != 1) { + pr_err("failed to write the device\n"); + return ret; + } + } + pr_debug("write success reg = %x val = %x\n", reg, data[1]); + } + return rc; +} + +static int wsa881x_i2c_read_device(struct wsa881x_pdata *wsa881x, + unsigned int reg) +{ + int wsa881x_index; + int i = 0, rc = 0; + unsigned int val; + struct i2c_msg *msg; + int ret = 0; + u8 reg_addr = 0; + u8 dest[5]; + + wsa881x_index = get_i2c_wsa881x_device_index(reg); + if (wsa881x_index < 0) { + pr_err("%s:invalid register to read\n", __func__); + return -EINVAL; + } + if (wsa881x->regmap_flag) { + rc = regmap_read(wsa881x->regmap[wsa881x_index], reg, &val); + for (i = 0; rc && i < ARRAY_SIZE(delay_array_msec); i++) { + pr_err("Failed reading reg=%u - retry(%d)\n", reg, i); + /* retry after delay of increasing order */ + msleep(delay_array_msec[i]); + rc = regmap_read(wsa881x->regmap[wsa881x_index], + reg, &val); + } + if (rc) { + pr_err("Failed reading reg=%u rc=%d\n", reg, rc); + return rc; + } + pr_debug("read success reg = %x val = %x\n", + reg, val); + } else { + reg_addr = (u8)reg; + msg = &wsa881x->xfer_msg[0]; + msg->addr = wsa881x->client[wsa881x_index]->addr; + msg->len = 1; + msg->flags = 0; + msg->buf = ®_addr; + + msg = &wsa881x->xfer_msg[1]; + msg->addr = wsa881x->client[wsa881x_index]->addr; + msg->len = 1; + msg->flags = I2C_M_RD; + msg->buf = dest; + ret = i2c_transfer(wsa881x->client[wsa881x_index]->adapter, + wsa881x->xfer_msg, 2); + + /* Try again if read fails first time */ + if (ret != 2) { + ret = i2c_transfer( + wsa881x->client[wsa881x_index]->adapter, + wsa881x->xfer_msg, 2); + if (ret != 2) { + pr_err("failed to read wsa register:%d\n", + reg); + return ret; + } + } + val = dest[0]; + } + return val; +} + +static unsigned int wsa881x_i2c_read(struct snd_soc_codec *codec, + unsigned int reg) +{ + struct wsa881x_pdata *wsa881x; + unsigned int val; + int ret; + + if (codec == NULL) { + pr_err("%s: invalid codec\n", __func__); + return -EINVAL; + } + wsa881x = snd_soc_codec_get_drvdata(codec); + if (!wsa881x->wsa_active) { + ret = snd_soc_cache_read(codec, reg, &val); + if (ret >= 0) + return val; + dev_err(codec->dev, + "cache read failed for reg: 0x%x ret: %d\n", + reg, ret); + return ret; + } + return wsa881x_i2c_read_device(wsa881x, reg); +} + +static int wsa881x_i2c_write(struct snd_soc_codec *codec, unsigned int reg, + unsigned int val) +{ + struct wsa881x_pdata *wsa881x; + int ret = 0; + + if (codec == NULL) { + pr_err("%s: invalid codec\n", __func__); + return -EINVAL; + } + wsa881x = snd_soc_codec_get_drvdata(codec); + if (!wsa881x->wsa_active) { + ret = snd_soc_cache_write(codec, reg, val); + if (ret != 0) + dev_err(codec->dev, "cache write to %x failed: %d\n", + reg, ret); + return ret; + } + return wsa881x_i2c_write_device(wsa881x, reg, val); +} + +static int wsa881x_i2c_get_client_index(struct i2c_client *client, + int *wsa881x_index) +{ + int ret = 0; + + switch (client->addr) { + case WSA881X_I2C_SPK0_SLAVE0_ADDR: + case WSA881X_I2C_SPK0_SLAVE1_ADDR: + *wsa881x_index = WSA881X_I2C_SPK0_SLAVE0; + break; + case WSA881X_I2C_SPK1_SLAVE0_ADDR: + case WSA881X_I2C_SPK1_SLAVE1_ADDR: + *wsa881x_index = WSA881X_I2C_SPK1_SLAVE0; + break; + default: + ret = -EINVAL; + break; + } + return ret; +} + +static int wsa881x_boost_ctrl(struct snd_soc_codec *codec, bool enable) +{ + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + pr_debug("%s: enable:%d\n", __func__, enable); + if (enable) { + if (!WSA881X_IS_2_0(wsa881x->version)) { + snd_soc_update_bits(codec, WSA881X_ANA_CTL, + 0x01, 0x01); + snd_soc_update_bits(codec, WSA881X_ANA_CTL, + 0x04, 0x04); + snd_soc_update_bits(codec, WSA881X_BOOST_PS_CTL, + 0x40, 0x00); + snd_soc_update_bits(codec, WSA881X_BOOST_PRESET_OUT1, + 0xF0, 0xB0); + snd_soc_update_bits(codec, WSA881X_BOOST_ZX_CTL, + 0x20, 0x00); + snd_soc_update_bits(codec, WSA881X_BOOST_EN_CTL, + 0x80, 0x80); + } else { + snd_soc_update_bits(codec, WSA881X_BOOST_LOOP_STABILITY, + 0x03, 0x03); + snd_soc_update_bits(codec, WSA881X_BOOST_MISC2_CTL, + 0xFF, 0x14); + snd_soc_update_bits(codec, WSA881X_BOOST_START_CTL, + 0x80, 0x80); + snd_soc_update_bits(codec, WSA881X_BOOST_START_CTL, + 0x03, 0x00); + snd_soc_update_bits(codec, + WSA881X_BOOST_SLOPE_COMP_ISENSE_FB, + 0x0C, 0x04); + snd_soc_update_bits(codec, + WSA881X_BOOST_SLOPE_COMP_ISENSE_FB, + 0x03, 0x00); + snd_soc_update_bits(codec, WSA881X_BOOST_PRESET_OUT1, + 0xF0, 0x70); + snd_soc_update_bits(codec, WSA881X_ANA_CTL, 0x03, 0x01); + snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN, + 0x08, 0x08); + snd_soc_update_bits(codec, WSA881X_ANA_CTL, 0x04, 0x04); + snd_soc_update_bits(codec, WSA881X_BOOST_CURRENT_LIMIT, + 0x0F, 0x08); + snd_soc_update_bits(codec, WSA881X_BOOST_EN_CTL, + 0x80, 0x80); + } + /* For WSA8810, start-up time is 1500us as per qcrg sequence */ + usleep_range(1500, 1510); + } else { + /* ENSURE: Class-D amp is shutdown. CLK is still on */ + snd_soc_update_bits(codec, WSA881X_BOOST_EN_CTL, 0x80, 0x00); + /* boost settle time is 1500us as per qcrg sequence */ + usleep_range(1500, 1510); + } + return 0; +} + +static int wsa881x_visense_txfe_ctrl(struct snd_soc_codec *codec, bool enable, + u8 isense1_gain, u8 isense2_gain, + u8 vsense_gain) +{ + u8 value = 0; + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + pr_debug("%s: enable:%d\n", __func__, enable); + + if (enable) { + if (WSA881X_IS_2_0(wsa881x->version)) { + snd_soc_update_bits(codec, WSA881X_OTP_REG_28, + 0x3F, 0x3A); + snd_soc_update_bits(codec, WSA881X_BONGO_RESRV_REG1, + 0xFF, 0xB2); + snd_soc_update_bits(codec, WSA881X_BONGO_RESRV_REG2, + 0xFF, 0x05); + } + snd_soc_update_bits(codec, WSA881X_SPKR_PROT_FE_VSENSE_VCM, + 0x08, 0x00); + if (WSA881X_IS_2_0(wsa881x->version)) { + snd_soc_update_bits(codec, WSA881X_SPKR_PROT_ATEST2, + 0x1C, 0x04); + } else { + snd_soc_update_bits(codec, WSA881X_SPKR_PROT_ATEST2, + 0x08, 0x08); + snd_soc_update_bits(codec, WSA881X_SPKR_PROT_ATEST2, + 0x02, 0x02); + } + value = ((isense2_gain << 6) | (isense1_gain << 4) | + (vsense_gain << 3)); + snd_soc_update_bits(codec, WSA881X_SPKR_PROT_FE_GAIN, + 0xF8, value); + snd_soc_update_bits(codec, WSA881X_SPKR_PROT_FE_GAIN, + 0x01, 0x01); + } else { + if (WSA881X_IS_2_0(wsa881x->version)) + snd_soc_update_bits(codec, + WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x10, 0x10); + else + snd_soc_update_bits(codec, + WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x08, 0x08); + /* + * 200us sleep is needed after visense txfe disable as per + * HW requirement. + */ + usleep_range(200, 210); + + snd_soc_update_bits(codec, WSA881X_SPKR_PROT_FE_GAIN, + 0x01, 0x00); + } + return 0; +} + +static int wsa881x_visense_adc_ctrl(struct snd_soc_codec *codec, bool enable) +{ + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + pr_debug("%s: enable:%d\n", __func__, enable); + if (enable) { + if (!WSA881X_IS_2_0(wsa881x->version)) + snd_soc_update_bits(codec, WSA881X_ADC_SEL_IBIAS, + 0x70, 0x40); + snd_soc_update_bits(codec, WSA881X_ADC_EN_SEL_IBIAS, + 0x07, 0x04); + snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_V, 0x80, 0x80); + snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_I, 0x80, 0x80); + } else { + /* Ensure: Speaker Protection has been stopped */ + snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_V, 0x80, 0x00); + snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_I, 0x80, 0x00); + } + + return 0; +} + +static void wsa881x_bandgap_ctrl(struct snd_soc_codec *codec, bool enable) +{ + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + dev_dbg(codec->dev, "%s: enable:%d, bg_count:%d\n", __func__, + enable, wsa881x->bg_cnt); + mutex_lock(&wsa881x->bg_lock); + if (enable) { + ++wsa881x->bg_cnt; + if (wsa881x->bg_cnt == 1) { + snd_soc_update_bits(codec, WSA881X_TEMP_OP, + 0x08, 0x08); + /* 400usec sleep is needed as per HW requirement */ + usleep_range(400, 410); + snd_soc_update_bits(codec, WSA881X_TEMP_OP, 0x04, 0x04); + } + } else { + --wsa881x->bg_cnt; + if (wsa881x->bg_cnt <= 0) { + WARN_ON(wsa881x->bg_cnt < 0); + wsa881x->bg_cnt = 0; + snd_soc_update_bits(codec, WSA881X_TEMP_OP, 0x04, 0x00); + snd_soc_update_bits(codec, WSA881X_TEMP_OP, 0x08, 0x00); + } + } + mutex_unlock(&wsa881x->bg_lock); +} + +static void wsa881x_clk_ctrl(struct snd_soc_codec *codec, bool enable) +{ + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + dev_dbg(codec->dev, "%s:ss enable:%d, clk_count:%d\n", __func__, + enable, wsa881x->clk_cnt); + mutex_lock(&wsa881x->res_lock); + if (enable) { + ++wsa881x->clk_cnt; + if (wsa881x->clk_cnt == 1) { + snd_soc_write(codec, WSA881X_CDC_RST_CTL, 0x02); + snd_soc_write(codec, WSA881X_CDC_RST_CTL, 0x03); + snd_soc_write(codec, WSA881X_CLOCK_CONFIG, 0x01); + snd_soc_write(codec, WSA881X_CDC_DIG_CLK_CTL, 0x01); + snd_soc_write(codec, WSA881X_CDC_ANA_CLK_CTL, 0x01); + } + } else { + --wsa881x->clk_cnt; + if (wsa881x->clk_cnt <= 0) { + WARN_ON(wsa881x->clk_cnt < 0); + wsa881x->clk_cnt = 0; + snd_soc_write(codec, WSA881X_CDC_ANA_CLK_CTL, 0x00); + snd_soc_write(codec, WSA881X_CDC_DIG_CLK_CTL, 0x00); + if (WSA881X_IS_2_0(wsa881x->version)) + snd_soc_update_bits(codec, + WSA881X_CDC_TOP_CLK_CTL, 0x01, 0x00); + } + } + mutex_unlock(&wsa881x->res_lock); +} + +static int wsa881x_rdac_ctrl(struct snd_soc_codec *codec, bool enable) +{ + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + pr_debug("%s: enable:%d\n", __func__, enable); + if (enable) { + snd_soc_update_bits(codec, WSA881X_ANA_CTL, 0x08, 0x00); + snd_soc_update_bits(codec, WSA881X_SPKR_DRV_GAIN, 0x08, 0x08); + snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x20, 0x20); + snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x20, 0x00); + snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x40, 0x40); + snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x80, 0x80); + if (WSA881X_IS_2_0(wsa881x->version)) { + snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_CAL, + 0x01, 0x01); + snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, + 0x30, 0x30); + snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, + 0x0C, 0x00); + } + snd_soc_update_bits(codec, WSA881X_SPKR_DRV_GAIN, 0xF0, 0x40); + snd_soc_update_bits(codec, WSA881X_SPKR_MISC_CTL1, 0x01, 0x01); + } else { + /* Ensure class-D amp is off */ + snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x80, 0x00); + } + return 0; +} + +static int wsa881x_spkr_pa_ctrl(struct snd_soc_codec *codec, bool enable) +{ + int ret = 0; + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + pr_debug("%s: enable:%d\n", __func__, enable); + if (enable) { + /* + * Ensure: Boost is enabled and stable, Analog input is up + * and outputting silence + */ + if (!WSA881X_IS_2_0(wsa881x->version)) { + snd_soc_update_bits(codec, WSA881X_ADC_EN_DET_TEST_I, + 0xFF, 0x01); + snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_V, + 0x02, 0x02); + snd_soc_update_bits(codec, WSA881X_ADC_EN_DET_TEST_V, + 0xFF, 0x10); + snd_soc_update_bits(codec, WSA881X_SPKR_PWRSTG_DBG, + 0xA0, 0xA0); + snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN, + 0x80, 0x80); + usleep_range(700, 710); + snd_soc_update_bits(codec, WSA881X_SPKR_PWRSTG_DBG, + 0x00, 0x00); + snd_soc_update_bits(codec, WSA881X_ADC_EN_DET_TEST_V, + 0xFF, 0x00); + snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_V, + 0x02, 0x00); + snd_soc_update_bits(codec, WSA881X_ADC_EN_DET_TEST_I, + 0xFF, 0x00); + } else + snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN, + 0x80, 0x80); + /* add 1000us delay as per qcrg */ + usleep_range(1000, 1010); + snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN, 0x01, 0x01); + if (WSA881X_IS_2_0(wsa881x->version)) + snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_CAL, + 0x01, 0x00); + usleep_range(1000, 1010); + snd_soc_update_bits(codec, WSA881X_SPKR_DRV_GAIN, 0xF0, + (wsa881x->spk_pa_gain << 4)); + if (wsa881x->visense_enable) { + ret = msm_gpioset_activate(CLIENT_WSA_BONGO_1, + "wsa_vi"); + if (ret) { + pr_err("%s: gpio set cannot be activated %s\n", + __func__, "wsa_vi"); + return ret; + } + wsa881x_visense_txfe_ctrl(codec, true, + 0x00, 0x01, 0x00); + wsa881x_visense_adc_ctrl(codec, true); + } + } else { + /* + * Ensure: Boost is still on, Stream from Analog input and + * Speaker Protection has been stopped and input is at 0V + */ + if (WSA881X_IS_2_0(wsa881x->version)) { + snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_CAL, + 0x01, 0x01); + usleep_range(1000, 1010); + snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_CAL, + 0x01, 0x00); + msleep(20); + snd_soc_update_bits(codec, WSA881X_ANA_CTL, + 0x03, 0x00); + usleep_range(200, 210); + } + snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN, 0x80, 0x00); + } + return 0; +} + +static int wsa881x_get_boost(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + ucontrol->value.integer.value[0] = wsa881x->boost_enable; + return 0; +} + +static int wsa881x_set_boost(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + int value = ucontrol->value.integer.value[0]; + + dev_dbg(codec->dev, "%s: Boost enable current %d, new %d\n", + __func__, wsa881x->boost_enable, value); + wsa881x->boost_enable = value; + return 0; +} + +static int wsa881x_get_visense(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + ucontrol->value.integer.value[0] = wsa881x->visense_enable; + return 0; +} + +static int wsa881x_set_visense(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + int value = ucontrol->value.integer.value[0]; + + dev_dbg(codec->dev, "%s: VIsense enable current %d, new %d\n", + __func__, wsa881x->visense_enable, value); + wsa881x->visense_enable = value; + return 0; +} + +static const struct snd_kcontrol_new wsa881x_snd_controls[] = { + SOC_SINGLE_EXT("BOOST Switch", SND_SOC_NOPM, 0, 1, 0, + wsa881x_get_boost, wsa881x_set_boost), + + SOC_SINGLE_EXT("VISENSE Switch", SND_SOC_NOPM, 0, 1, 0, + wsa881x_get_visense, wsa881x_set_visense), + + SOC_ENUM_EXT("WSA_SPK PA Gain", wsa881x_spk_pa_gain_enum[0], + wsa881x_spk_pa_gain_get, wsa881x_spk_pa_gain_put), +}; + +static const char * const rdac_text[] = { + "ZERO", "Switch", +}; + +static const struct soc_enum rdac_enum = + SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(rdac_text), rdac_text); + +static const struct snd_kcontrol_new rdac_mux[] = { + SOC_DAPM_ENUM("RDAC", rdac_enum) +}; + +static int wsa881x_rdac_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = w->codec; + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + int ret = 0; + + dev_dbg(codec->dev, "%s: %s %d boost %d visense %d\n", + __func__, w->name, event, + wsa881x->boost_enable, wsa881x->visense_enable); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + ret = wsa881x_startup(wsa881x); + if (ret) { + pr_err("%s: wsa startup failed ret: %d", __func__, ret); + return ret; + } + wsa881x_clk_ctrl(codec, true); + snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x02, 0x02); + if (!WSA881X_IS_2_0(wsa881x->version)) + snd_soc_update_bits(codec, WSA881X_BIAS_REF_CTRL, + 0x0F, 0x08); + wsa881x_bandgap_ctrl(codec, true); + if (!WSA881X_IS_2_0(wsa881x->version)) + snd_soc_update_bits(codec, WSA881X_SPKR_BBM_CTL, + 0x02, 0x02); + snd_soc_update_bits(codec, WSA881X_SPKR_MISC_CTL1, 0xC0, 0x80); + snd_soc_update_bits(codec, WSA881X_SPKR_MISC_CTL1, 0x06, 0x06); + if (!WSA881X_IS_2_0(wsa881x->version)) { + snd_soc_update_bits(codec, WSA881X_SPKR_MISC_CTL2, + 0x04, 0x04); + snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_INT, + 0x09, 0x09); + } + snd_soc_update_bits(codec, WSA881X_SPKR_PA_INT, 0xF0, 0x20); + if (WSA881X_IS_2_0(wsa881x->version)) + snd_soc_update_bits(codec, WSA881X_SPKR_PA_INT, + 0x0E, 0x0E); + if (wsa881x->boost_enable) + wsa881x_boost_ctrl(codec, true); + break; + case SND_SOC_DAPM_POST_PMU: + wsa881x_rdac_ctrl(codec, true); + break; + case SND_SOC_DAPM_PRE_PMD: + wsa881x_rdac_ctrl(codec, false); + if (wsa881x->visense_enable) { + wsa881x_visense_adc_ctrl(codec, false); + wsa881x_visense_txfe_ctrl(codec, false, + 0x00, 0x01, 0x00); + ret = msm_gpioset_suspend(CLIENT_WSA_BONGO_1, + "wsa_vi"); + if (ret) { + pr_err("%s: gpio set cannot be suspended %s\n", + __func__, "wsa_vi"); + return ret; + } + } + break; + case SND_SOC_DAPM_POST_PMD: + if (wsa881x->boost_enable) + wsa881x_boost_ctrl(codec, false); + wsa881x_clk_ctrl(codec, false); + wsa881x_bandgap_ctrl(codec, false); + ret = wsa881x_shutdown(wsa881x); + if (ret < 0) { + pr_err("%s: wsa shutdown failed ret: %d", + __func__, ret); + return ret; + } + break; + default: + pr_err("%s: invalid event:%d\n", __func__, event); + return -EINVAL; + } + return 0; +} + +static void wsa881x_ocp_ctl_work(struct work_struct *work) +{ + struct wsa881x_pdata *wsa881x; + struct delayed_work *dwork; + struct snd_soc_codec *codec; + unsigned long temp_val; + + dwork = to_delayed_work(work); + wsa881x = container_of(dwork, struct wsa881x_pdata, ocp_ctl_work); + + if (!wsa881x) + return; + + codec = wsa881x->codec; + wsa881x_get_temp(wsa881x->tz_pdata.tz_dev, &temp_val); + dev_dbg(codec->dev, " temp = %ld\n", temp_val); + + if (temp_val <= WSA881X_OCP_CTL_TEMP_CELSIUS) + snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, 0xC0, 0x00); + else + snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, 0xC0, 0xC0); + + schedule_delayed_work(&wsa881x->ocp_ctl_work, + msecs_to_jiffies(wsa881x_ocp_poll_timer_sec * 1000)); +} + +static int wsa881x_spkr_pa_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = w->codec; + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + pr_debug("%s: %s %d\n", __func__, w->name, event); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, 0xC0, 0x80); + break; + case SND_SOC_DAPM_POST_PMU: + wsa881x_spkr_pa_ctrl(codec, true); + schedule_delayed_work(&wsa881x->ocp_ctl_work, + msecs_to_jiffies(WSA881X_OCP_CTL_TIMER_SEC * 1000)); + break; + case SND_SOC_DAPM_PRE_PMD: + wsa881x_spkr_pa_ctrl(codec, false); + break; + case SND_SOC_DAPM_POST_PMD: + cancel_delayed_work_sync(&wsa881x->ocp_ctl_work); + snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, 0xC0, 0xC0); + break; + default: + pr_err("%s: invalid event:%d\n", __func__, event); + return -EINVAL; + } + return 0; +} + + +static const struct snd_soc_dapm_widget wsa881x_dapm_widgets[] = { + SND_SOC_DAPM_INPUT("WSA_IN"), + + SND_SOC_DAPM_DAC_E("RDAC Analog", NULL, SND_SOC_NOPM, 0, 0, + wsa881x_rdac_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | + SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD), + + SND_SOC_DAPM_MUX("WSA_RDAC", SND_SOC_NOPM, 0, 0, + rdac_mux), + + SND_SOC_DAPM_PGA_S("WSA_SPKR PGA", 1, SND_SOC_NOPM, 0, 0, + wsa881x_spkr_pa_event, + SND_SOC_DAPM_PRE_PMU | + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD | + SND_SOC_DAPM_POST_PMD), + + SND_SOC_DAPM_OUTPUT("WSA_SPKR"), +}; + +static const struct snd_soc_dapm_route wsa881x_audio_map[] = { + {"WSA_RDAC", "Switch", "WSA_IN"}, + {"RDAC Analog", NULL, "WSA_RDAC"}, + {"WSA_SPKR PGA", NULL, "RDAC Analog"}, + {"WSA_SPKR", NULL, "WSA_SPKR PGA"}, +}; + + +static int wsa881x_startup(struct wsa881x_pdata *pdata) +{ + int ret = 0; + struct snd_soc_codec *codec = pdata->codec; + struct snd_soc_card *card = codec->component.card; + + pr_debug("%s(): wsa startup, enable_cnt:%d\n", __func__, + pdata->enable_cnt); + + if (pdata->enable_cnt++ > 0) + return 0; + ret = msm_gpioset_activate(CLIENT_WSA_BONGO_1, "wsa_clk"); + if (ret) { + pr_err("%s: gpio set cannot be activated %s\n", + __func__, "wsa_clk"); + return ret; + } + if (pdata->enable_mclk) { + ret = pdata->enable_mclk(card, true); + if (ret < 0) { + dev_err_ratelimited(codec->dev, + "%s: mclk enable failed %d\n", + __func__, ret); + return ret; + } + } + ret = wsa881x_reset(pdata, true); + return ret; +} + +static int wsa881x_shutdown(struct wsa881x_pdata *pdata) +{ + int ret = 0, reg; + struct snd_soc_codec *codec = pdata->codec; + struct snd_soc_card *card = codec->component.card; + + pr_debug("%s(): wsa shutdown, enable_cnt:%d\n", __func__, + pdata->enable_cnt); + if (--pdata->enable_cnt > 0) + return 0; + ret = wsa881x_reset(pdata, false); + if (ret) { + pr_err("%s: wsa reset failed suspend %d\n", + __func__, ret); + return ret; + } + + if (pdata->enable_mclk) { + ret = pdata->enable_mclk(card, false); + if (ret < 0) { + pr_err("%s: mclk disable failed %d\n", + __func__, ret); + return ret; + } + } + + ret = msm_gpioset_suspend(CLIENT_WSA_BONGO_1, "wsa_clk"); + if (ret) { + pr_err("%s: gpio set cannot be suspended %s\n", + __func__, "wsa_clk"); + return ret; + } + if (pdata->codec) { + /* restore defaults to cache */ + for (reg = 0; reg < ARRAY_SIZE(wsa881x_ana_reg_defaults); + reg++) { + if (wsa881x_ana_reg_readable[reg]) + snd_soc_cache_write(pdata->codec, + wsa881x_ana_reg_defaults[reg].reg, + wsa881x_ana_reg_defaults[reg].def); + } + } + return 0; +} + +static int32_t wsa881x_resource_acquire(struct snd_soc_codec *codec, + bool enable) +{ + int ret = 0; + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + if (enable) { + ret = wsa881x_startup(wsa881x); + if (ret < 0) { + dev_err_ratelimited(codec->dev, + "%s: failed to startup\n", __func__); + return ret; + } + } + wsa881x_clk_ctrl(codec, enable); + wsa881x_bandgap_ctrl(codec, enable); + if (!enable) { + ret = wsa881x_shutdown(wsa881x); + if (ret < 0) + dev_err_ratelimited(codec->dev, + "%s: failed to shutdown\n", __func__); + } + return ret; +} + +static int32_t wsa881x_temp_reg_read(struct snd_soc_codec *codec, + struct wsa_temp_register *wsa_temp_reg) +{ + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + int ret = 0; + + if (!wsa881x) { + dev_err(codec->dev, "%s: wsa881x is NULL\n", __func__); + return -EINVAL; + } + ret = wsa881x_resource_acquire(codec, true); + if (ret) { + dev_err_ratelimited(codec->dev, + "%s: resource acquire fail\n", __func__); + return ret; + } + + if (WSA881X_IS_2_0(wsa881x->version)) { + snd_soc_update_bits(codec, WSA881X_TADC_VALUE_CTL, 0x01, 0x00); + wsa_temp_reg->dmeas_msb = snd_soc_read(codec, WSA881X_TEMP_MSB); + wsa_temp_reg->dmeas_lsb = snd_soc_read(codec, WSA881X_TEMP_LSB); + snd_soc_update_bits(codec, WSA881X_TADC_VALUE_CTL, 0x01, 0x01); + } else { + wsa_temp_reg->dmeas_msb = snd_soc_read(codec, + WSA881X_TEMP_DOUT_MSB); + wsa_temp_reg->dmeas_lsb = snd_soc_read(codec, + WSA881X_TEMP_DOUT_LSB); + } + wsa_temp_reg->d1_msb = snd_soc_read(codec, WSA881X_OTP_REG_1); + wsa_temp_reg->d1_lsb = snd_soc_read(codec, WSA881X_OTP_REG_2); + wsa_temp_reg->d2_msb = snd_soc_read(codec, WSA881X_OTP_REG_3); + wsa_temp_reg->d2_lsb = snd_soc_read(codec, WSA881X_OTP_REG_4); + + ret = wsa881x_resource_acquire(codec, false); + if (ret) + dev_err_ratelimited(codec->dev, + "%s: resource release fail\n", __func__); + + return ret; +} + +static int wsa881x_probe(struct snd_soc_codec *codec) +{ + struct i2c_client *client; + int ret = 0; + int wsa881x_index = 0; + struct snd_soc_dapm_context *dapm = &codec->dapm; + char *widget_name = NULL; + struct snd_soc_card *card = codec->component.card; + struct snd_soc_codec_conf *codec_conf = card->codec_conf; + + client = dev_get_drvdata(codec->dev); + ret = wsa881x_i2c_get_client_index(client, &wsa881x_index); + if (ret != 0) { + dev_err(&client->dev, "%s: I2C get codec I2C\n" + "client failed\n", __func__); + return ret; + } + mutex_init(&wsa_pdata[wsa881x_index].bg_lock); + mutex_init(&wsa_pdata[wsa881x_index].res_lock); + snprintf(wsa_pdata[wsa881x_index].tz_pdata.name, 100, "%s", + wsa_tz_names[wsa881x_index]); + wsa_pdata[wsa881x_index].codec = codec; + wsa_pdata[wsa881x_index].spk_pa_gain = SPK_GAIN_12DB; + wsa_pdata[wsa881x_index].codec = codec; + wsa_pdata[wsa881x_index].tz_pdata.codec = codec; + wsa_pdata[wsa881x_index].tz_pdata.wsa_temp_reg_read = + wsa881x_temp_reg_read; + snd_soc_codec_set_drvdata(codec, &wsa_pdata[wsa881x_index]); + wsa881x_init_thermal(&wsa_pdata[wsa881x_index].tz_pdata); + INIT_DELAYED_WORK(&wsa_pdata[wsa881x_index].ocp_ctl_work, + wsa881x_ocp_ctl_work); + + if (codec_conf->name_prefix) { + widget_name = kcalloc(WIDGET_NAME_MAX_SIZE, sizeof(char), + GFP_KERNEL); + if (!widget_name) + return -ENOMEM; + + snprintf(widget_name, WIDGET_NAME_MAX_SIZE, + "%s WSA_SPKR", codec_conf->name_prefix); + snd_soc_dapm_ignore_suspend(dapm, widget_name); + snprintf(widget_name, WIDGET_NAME_MAX_SIZE, + "%s WSA_IN", codec_conf->name_prefix); + snd_soc_dapm_ignore_suspend(dapm, widget_name); + kfree(widget_name); + } else { + snd_soc_dapm_ignore_suspend(dapm, "WSA_SPKR"); + snd_soc_dapm_ignore_suspend(dapm, "WSA_IN"); + } + + snd_soc_dapm_sync(dapm); + return 0; +} + +static int wsa881x_remove(struct snd_soc_codec *codec) +{ + struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec); + + if (wsa881x->tz_pdata.tz_dev) + wsa881x_deinit_thermal(wsa881x->tz_pdata.tz_dev); + + mutex_destroy(&wsa881x->bg_lock); + mutex_destroy(&wsa881x->res_lock); + return 0; +} + +static struct snd_soc_codec_driver soc_codec_dev_wsa881x = { + .probe = wsa881x_probe, + .remove = wsa881x_remove, + + .read = wsa881x_i2c_read, + .write = wsa881x_i2c_write, + + .reg_cache_size = WSA881X_CACHE_SIZE, + .reg_cache_default = wsa881x_ana_reg_defaults, + .reg_word_size = 1, + + .controls = wsa881x_snd_controls, + .num_controls = ARRAY_SIZE(wsa881x_snd_controls), + .dapm_widgets = wsa881x_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(wsa881x_dapm_widgets), + .dapm_routes = wsa881x_audio_map, + .num_dapm_routes = ARRAY_SIZE(wsa881x_audio_map), +}; + +static int wsa881x_reset(struct wsa881x_pdata *pdata, bool enable) +{ + int ret = 0; + + /* + * shutdown the GPIOs WSA_EN, WSA_MCLK, regulators + * and restore defaults in soc cache when shutdown. + * Enable regulators, GPIOs WSA_MCLK, WSA_EN when powerup. + */ + if (enable) { + if (pdata->wsa_active) + return 0; + ret = msm_gpioset_activate(CLIENT_WSA_BONGO_1, "wsa_reset"); + if (ret) { + pr_err("%s: gpio set cannot be activated %s\n", + __func__, "wsa_reset"); + return ret; + } + ret = msm_gpioset_suspend(CLIENT_WSA_BONGO_1, "wsa_reset"); + if (ret) { + pr_err("%s: gpio set cannot be suspended(powerup) %s\n", + __func__, "wsa_reset"); + return ret; + } + ret = msm_gpioset_activate(CLIENT_WSA_BONGO_1, "wsa_reset"); + if (ret) { + pr_err("%s: gpio set cannot be activated %s\n", + __func__, "wsa_reset"); + return ret; + } + pdata->wsa_active = true; + } else { + if (!pdata->wsa_active) + return 0; + ret = msm_gpioset_suspend(CLIENT_WSA_BONGO_1, "wsa_reset"); + if (ret) { + pr_err("%s: gpio set cannot be suspended %s\n", + __func__, "wsa_reset"); + return ret; + } + pdata->wsa_active = false; + } + return ret; +} + +int wsa881x_get_client_index(void) +{ + return wsa881x_i2c_addr; +} +EXPORT_SYMBOL(wsa881x_get_client_index); + +int wsa881x_get_probing_count(void) +{ + return wsa881x_probing_count; +} +EXPORT_SYMBOL(wsa881x_get_probing_count); + +int wsa881x_get_presence_count(void) +{ + return wsa881x_presence_count; +} +EXPORT_SYMBOL(wsa881x_get_presence_count); + +int wsa881x_set_mclk_callback( + int (*enable_mclk_callback)(struct snd_soc_card *, bool)) +{ + int i; + + for (i = 0; i < MAX_WSA881X_DEVICE; i++) { + if (wsa_pdata[i].status == WSA881X_STATUS_I2C) + wsa_pdata[i].enable_mclk = enable_mclk_callback; + } + return 0; +} +EXPORT_SYMBOL(wsa881x_set_mclk_callback); + +static int check_wsa881x_presence(struct i2c_client *client) +{ + int ret = 0; + int wsa881x_index = 0; + + ret = wsa881x_i2c_get_client_index(client, &wsa881x_index); + if (ret != 0) { + dev_err(&client->dev, "%s: I2C get codec I2C\n" + "client failed\n", __func__); + return ret; + } + ret = wsa881x_i2c_read_device(&wsa_pdata[wsa881x_index], + WSA881X_CDC_RST_CTL); + if (ret < 0) { + dev_err(&client->dev, "failed to read wsa881x with addr %x\n", + client->addr); + return ret; + } + ret = wsa881x_i2c_write_device(&wsa_pdata[wsa881x_index], + WSA881X_CDC_RST_CTL, 0x01); + if (ret < 0) { + dev_err(&client->dev, "failed write addr %x reg:0x5 val:0x1\n", + client->addr); + return ret; + } + /* allow 20ms before trigger next write to verify bongo presence */ + msleep(20); + ret = wsa881x_i2c_write_device(&wsa_pdata[wsa881x_index], + WSA881X_CDC_RST_CTL, 0x00); + if (ret < 0) { + dev_err(&client->dev, "failed write addr %x reg:0x5 val:0x0\n", + client->addr); + return ret; + } + return ret; +} + +static int wsa881x_populate_dt_pdata(struct device *dev) +{ + int ret = 0; + + /* reading the gpio configurations from dtsi file */ + if (!pinctrl_init) { + ret = msm_gpioset_initialize(CLIENT_WSA_BONGO_1, dev); + if (ret < 0) { + dev_err(dev, + "%s: error reading dtsi files%d\n", __func__, ret); + goto err; + } + pinctrl_init = true; + } +err: + return ret; +} + +static int wsa881x_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int ret = 0; + int wsa881x_index = 0; + struct wsa881x_pdata *pdata = NULL; + + ret = wsa881x_i2c_get_client_index(client, &wsa881x_index); + if (ret != 0) { + dev_err(&client->dev, "%s: I2C get codec I2C\n" + "client failed\n", __func__); + return ret; + } + + pdata = &wsa_pdata[wsa881x_index]; + + if ((client->addr == WSA881X_I2C_SPK0_SLAVE1_ADDR || + client->addr == WSA881X_I2C_SPK1_SLAVE1_ADDR) && + (pdata->status == WSA881X_STATUS_PROBING)) + return ret; + + if (pdata->status == WSA881X_STATUS_I2C) { + dev_dbg(&client->dev, "%s:probe for other slaves\n" + "devices of codec I2C slave Addr = %x\n", + __func__, client->addr); + + dev_dbg(&client->dev, "%s:wsa_idx = %d SLAVE = %d\n", + __func__, wsa881x_index, WSA881X_ANALOG_SLAVE); + pdata->regmap[WSA881X_ANALOG_SLAVE] = + devm_regmap_init_i2c( + client, + &wsa881x_ana_regmap_config[WSA881X_ANALOG_SLAVE]); + regcache_cache_bypass(pdata->regmap[WSA881X_ANALOG_SLAVE], + true); + if (IS_ERR(pdata->regmap[WSA881X_ANALOG_SLAVE])) { + ret = PTR_ERR(pdata->regmap[WSA881X_ANALOG_SLAVE]); + dev_err(&client->dev, + "%s: regmap_init failed %d\n", + __func__, ret); + } + client->dev.platform_data = pdata; + i2c_set_clientdata(client, pdata); + pdata->client[WSA881X_ANALOG_SLAVE] = client; + if (pdata->version == WSA881X_2_0) + wsa881x_update_regmap_2_0( + pdata->regmap[WSA881X_ANALOG_SLAVE], + WSA881X_ANALOG_SLAVE); + + return ret; + } else if (pdata->status == WSA881X_STATUS_PROBING) { + pdata->index = wsa881x_index; + if (client->dev.of_node) { + dev_dbg(&client->dev, "%s:Platform data\n" + "from device tree\n", __func__); + ret = wsa881x_populate_dt_pdata(&client->dev); + if (ret < 0) { + dev_err(&client->dev, + "%s: Fail to obtain pdata from device tree\n", + __func__); + ret = -EINVAL; + goto err; + } + client->dev.platform_data = pdata; + } else { + dev_dbg(&client->dev, "%s:Platform data from\n" + "board file\n", __func__); + pdata = client->dev.platform_data; + } + if (!pdata) { + dev_dbg(&client->dev, "no platform data?\n"); + ret = -EINVAL; + goto err; + } + i2c_set_clientdata(client, pdata); + dev_set_drvdata(&client->dev, client); + + pdata->regmap[WSA881X_DIGITAL_SLAVE] = + devm_regmap_init_i2c( + client, + &wsa881x_ana_regmap_config[WSA881X_DIGITAL_SLAVE]); + regcache_cache_bypass(pdata->regmap[WSA881X_DIGITAL_SLAVE], + true); + if (IS_ERR(pdata->regmap[WSA881X_DIGITAL_SLAVE])) { + ret = PTR_ERR(pdata->regmap[WSA881X_DIGITAL_SLAVE]); + dev_err(&client->dev, "%s: regmap_init failed %d\n", + __func__, ret); + goto err; + } + /* bus reset sequence */ + ret = wsa881x_reset(pdata, true); + if (ret < 0) { + dev_err(&client->dev, "%s: WSA enable Failed %d\n", + __func__, ret); + goto err; + } + pdata->client[WSA881X_DIGITAL_SLAVE] = client; + pdata->regmap_flag = true; + ret = check_wsa881x_presence(client); + if (ret < 0) { + dev_err(&client->dev, + "failed to ping wsa with addr:%x, ret = %d\n", + client->addr, ret); + wsa881x_probing_count++; + goto err1; + } + pdata->version = wsa881x_i2c_read_device(pdata, + WSA881X_CHIP_ID1); + pr_debug("%s: wsa881x version: %d\n", __func__, pdata->version); + if (pdata->version == WSA881X_2_0) { + wsa881x_update_reg_defaults_2_0(); + wsa881x_update_regmap_2_0( + pdata->regmap[WSA881X_DIGITAL_SLAVE], + WSA881X_DIGITAL_SLAVE); + } + wsa881x_presence_count++; + wsa881x_probing_count++; + ret = snd_soc_register_codec(&client->dev, + &soc_codec_dev_wsa881x, + NULL, 0); + if (ret < 0) + goto err1; + pdata->status = WSA881X_STATUS_I2C; + } +err1: + wsa881x_reset(pdata, false); +err: + return 0; +} + +static int wsa881x_i2c_remove(struct i2c_client *client) +{ + struct wsa881x_pdata *wsa881x = i2c_get_clientdata(client); + + snd_soc_unregister_codec(&client->dev); + i2c_set_clientdata(client, NULL); + kfree(wsa881x); + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int wsa881x_i2c_suspend(struct device *dev) +{ + pr_debug("%s: system suspend\n", __func__); + return 0; +} + +static int wsa881x_i2c_resume(struct device *dev) +{ + pr_debug("%s: system resume\n", __func__); + return 0; +} + +static const struct dev_pm_ops wsa881x_i2c_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(wsa881x_i2c_suspend, wsa881x_i2c_resume) +}; +#endif /* CONFIG_PM_SLEEP */ + +static const struct i2c_device_id wsa881x_i2c_id[] = { + {"wsa881x-i2c-dev", WSA881X_I2C_SPK0_SLAVE0_ADDR}, + {"wsa881x-i2c-dev", WSA881X_I2C_SPK0_SLAVE1_ADDR}, + {"wsa881x-i2c-dev", WSA881X_I2C_SPK1_SLAVE0_ADDR}, + {"wsa881x-i2c-dev", WSA881X_I2C_SPK1_SLAVE1_ADDR}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, wsa881x_i2c_id); + + +static struct of_device_id msm_match_table[] = { + {.compatible = "qcom,wsa881x-i2c-codec"}, + {} +}; +MODULE_DEVICE_TABLE(of, msm_match_table); + +static struct i2c_driver wsa881x_codec_driver = { + .driver = { + .name = "wsa881x-i2c-codec", + .owner = THIS_MODULE, +#ifdef CONFIG_PM_SLEEP + .pm = &wsa881x_i2c_pm_ops, +#endif + .of_match_table = msm_match_table, + }, + .id_table = wsa881x_i2c_id, + .probe = wsa881x_i2c_probe, + .remove = wsa881x_i2c_remove, +}; + +static int __init wsa881x_codec_init(void) +{ + int i = 0; + + for (i = 0; i < MAX_WSA881X_DEVICE; i++) + wsa_pdata[i].status = WSA881X_STATUS_PROBING; + return i2c_add_driver(&wsa881x_codec_driver); +} +module_init(wsa881x_codec_init); + +static void __exit wsa881x_codec_exit(void) +{ + i2c_del_driver(&wsa881x_codec_driver); +} + +module_exit(wsa881x_codec_exit); + +MODULE_DESCRIPTION("WSA881x Codec driver"); +MODULE_LICENSE("GPL v2"); |