| /* Copyright (c) 2011-2016, 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/kernel.h> |
| #include <linux/module.h> |
| #include <linux/of_gpio.h> |
| #include <linux/of_irq.h> |
| #include <linux/of_device.h> |
| #include <linux/slab.h> |
| #include <linux/ratelimit.h> |
| #include <linux/mfd/core.h> |
| #include <linux/mfd/wcd9xxx/wcd9xxx-slimslave.h> |
| #include <linux/mfd/wcd9xxx/core.h> |
| #include <linux/mfd/wcd9xxx/core-resource.h> |
| #include <linux/mfd/wcd9xxx/pdata.h> |
| #include <linux/mfd/wcd9xxx/wcd9xxx_registers.h> |
| #include <linux/mfd/wcd9xxx/wcd-gpio-ctrl.h> |
| #include <linux/mfd/wcd9335/registers.h> |
| |
| #include <linux/delay.h> |
| #include <linux/gpio.h> |
| #include <linux/debugfs.h> |
| #include <linux/regulator/consumer.h> |
| #include <linux/i2c.h> |
| #include <linux/regmap.h> |
| #include <sound/soc.h> |
| #include "wcd9xxx-regmap.h" |
| |
| #define WCD9XXX_REGISTER_START_OFFSET 0x800 |
| #define WCD9XXX_SLIM_RW_MAX_TRIES 3 |
| #define SLIMBUS_PRESENT_TIMEOUT 100 |
| |
| #define MAX_WCD9XXX_DEVICE 4 |
| #define CODEC_DT_MAX_PROP_SIZE 40 |
| #define WCD9XXX_I2C_GSBI_SLAVE_ID "3-000d" |
| #define WCD9XXX_I2C_TOP_SLAVE_ADDR 0x0d |
| #define WCD9XXX_ANALOG_I2C_SLAVE_ADDR 0x77 |
| #define WCD9XXX_DIGITAL1_I2C_SLAVE_ADDR 0x66 |
| #define WCD9XXX_DIGITAL2_I2C_SLAVE_ADDR 0x55 |
| #define WCD9XXX_I2C_TOP_LEVEL 0 |
| #define WCD9XXX_I2C_ANALOG 1 |
| #define WCD9XXX_I2C_DIGITAL_1 2 |
| #define WCD9XXX_I2C_DIGITAL_2 3 |
| |
| #define ONDEMAND_REGULATOR true |
| #define STATIC_REGULATOR (!ONDEMAND_REGULATOR) |
| /* Page Register Address that APP Proc uses to |
| * access WCD9335 Codec registers is identified |
| * as 0x00 |
| */ |
| #define PAGE_REG_ADDR 0x00 |
| |
| /* Number of return values needs to be checked for each |
| * registration of Slimbus of I2C bus for each codec |
| */ |
| #define NUM_WCD9XXX_REG_RET 11 |
| |
| #define SLIM_USR_MC_REPEAT_CHANGE_VALUE 0x0 |
| #define SLIM_REPEAT_WRITE_MAX_SLICE 16 |
| #define REG_BYTES 2 |
| #define VAL_BYTES 1 |
| #define WCD9XXX_PAGE_NUM(reg) (((reg) >> 8) & 0xff) |
| |
| struct wcd9xxx_i2c { |
| struct i2c_client *client; |
| struct i2c_msg xfer_msg[2]; |
| struct mutex xfer_lock; |
| int mod_id; |
| }; |
| |
| struct pinctrl_info { |
| struct pinctrl *pinctrl; |
| struct pinctrl_state *extncodec_sus; |
| struct pinctrl_state *extncodec_act; |
| }; |
| |
| static struct pinctrl_info pinctrl_info; |
| |
| static struct regmap_config wcd9xxx_base_regmap_config = { |
| .reg_bits = 16, |
| .val_bits = 8, |
| .can_multi_write = true, |
| }; |
| |
| static struct regmap_config wcd9xxx_i2c_base_regmap_config = { |
| .reg_bits = 16, |
| .val_bits = 8, |
| .can_multi_write = false, |
| .use_single_rw = true, |
| }; |
| |
| static const int wcd9xxx_cdc_types[] = { |
| [WCD9XXX] = WCD9XXX, |
| [WCD9330] = WCD9330, |
| [WCD9335] = WCD9335, |
| }; |
| |
| static const struct of_device_id wcd9xxx_of_match[] = { |
| { .compatible = "qcom,tomtom-slim-pgd", |
| .data = (void *)&wcd9xxx_cdc_types[WCD9330]}, |
| { .compatible = "qcom,tasha-slim-pgd", |
| .data = (void *)&wcd9xxx_cdc_types[WCD9335]}, |
| { .compatible = "qcom,tasha-i2c-pgd", |
| .data = (void *)&wcd9xxx_cdc_types[WCD9335]}, |
| { .compatible = "qcom,wcd9xxx-i2c", |
| .data = (void *)&wcd9xxx_cdc_types[WCD9330]}, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(of, wcd9xxx_of_match); |
| |
| static void wcd9xxx_set_codec_specific_param(struct wcd9xxx *wcd9xxx); |
| static struct regmap *devm_regmap_init_i2c_bus(struct i2c_client *i2c, |
| const struct regmap_config *config); |
| |
| static int extcodec_get_pinctrl(struct device *dev) |
| { |
| struct pinctrl *pinctrl; |
| |
| pinctrl = devm_pinctrl_get(dev); |
| if (IS_ERR(pinctrl)) { |
| pr_err("%s: Unable to get pinctrl handle\n", __func__); |
| return -EINVAL; |
| } |
| pinctrl_info.pinctrl = pinctrl; |
| /* get all the states handles from Device Tree */ |
| pinctrl_info.extncodec_sus = pinctrl_lookup_state(pinctrl, "idle"); |
| if (IS_ERR(pinctrl_info.extncodec_sus)) { |
| pr_err("%s: Unable to get pinctrl disable state handle, err: %ld\n", |
| __func__, PTR_ERR(pinctrl_info.extncodec_sus)); |
| return -EINVAL; |
| } |
| pinctrl_info.extncodec_act = pinctrl_lookup_state(pinctrl, "default"); |
| if (IS_ERR(pinctrl_info.extncodec_act)) { |
| pr_err("%s: Unable to get pinctrl disable state handle, err: %ld\n", |
| __func__, PTR_ERR(pinctrl_info.extncodec_act)); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static int wcd9xxx_dt_parse_vreg_info(struct device *dev, |
| struct wcd9xxx_regulator *vreg, |
| const char *vreg_name, bool ondemand); |
| static int wcd9xxx_dt_parse_micbias_info(struct device *dev, |
| struct wcd9xxx_micbias_setting *micbias); |
| static struct wcd9xxx_pdata *wcd9xxx_populate_dt_pdata(struct device *dev); |
| |
| static int wcd9xxx_slim_device_up(struct slim_device *sldev); |
| static int wcd9xxx_slim_device_down(struct slim_device *sldev); |
| static int wcd9xxx_enable_static_supplies(struct wcd9xxx *wcd9xxx, |
| struct wcd9xxx_pdata *pdata); |
| static void wcd9xxx_disable_supplies(struct wcd9xxx *wcd9xxx, |
| struct wcd9xxx_pdata *pdata); |
| |
| struct wcd9xxx_i2c wcd9xxx_modules[MAX_WCD9XXX_DEVICE]; |
| |
| static int wcd9xxx_read(struct wcd9xxx *wcd9xxx, unsigned short reg, |
| int bytes, void *dest, bool interface_reg) |
| { |
| int i, ret; |
| |
| if (bytes <= 0) { |
| dev_err(wcd9xxx->dev, "Invalid byte read length %d\n", bytes); |
| return -EINVAL; |
| } |
| |
| ret = wcd9xxx->read_dev(wcd9xxx, reg, bytes, dest, interface_reg); |
| if (ret < 0) { |
| dev_err(wcd9xxx->dev, "Codec read failed\n"); |
| return ret; |
| } else { |
| for (i = 0; i < bytes; i++) |
| dev_dbg(wcd9xxx->dev, "Read 0x%02x from 0x%x\n", |
| ((u8 *)dest)[i], reg + i); |
| } |
| |
| return 0; |
| } |
| |
| /* Called under io_lock acquisition */ |
| static int wcd9xxx_page_write(struct wcd9xxx *wcd9xxx, unsigned short *reg) |
| { |
| int ret = 0; |
| unsigned short c_reg, reg_addr; |
| u8 pg_num, prev_pg_num; |
| |
| if (wcd9xxx->type != WCD9335) |
| return ret; |
| |
| c_reg = *reg; |
| pg_num = c_reg >> 8; |
| reg_addr = c_reg & 0xff; |
| if (wcd9xxx->prev_pg_valid) { |
| prev_pg_num = wcd9xxx->prev_pg; |
| if (prev_pg_num != pg_num) { |
| ret = wcd9xxx->write_dev( |
| wcd9xxx, PAGE_REG_ADDR, 1, |
| (void *) &pg_num, false); |
| if (ret < 0) |
| pr_err("page write error, pg_num: 0x%x\n", |
| pg_num); |
| else { |
| wcd9xxx->prev_pg = pg_num; |
| dev_dbg(wcd9xxx->dev, "%s: Page 0x%x Write to 0x00\n", |
| __func__, pg_num); |
| } |
| } |
| } else { |
| ret = wcd9xxx->write_dev( |
| wcd9xxx, PAGE_REG_ADDR, 1, (void *) &pg_num, |
| false); |
| if (ret < 0) |
| pr_err("page write error, pg_num: 0x%x\n", pg_num); |
| else { |
| wcd9xxx->prev_pg = pg_num; |
| wcd9xxx->prev_pg_valid = true; |
| dev_dbg(wcd9xxx->dev, "%s: Page 0x%x Write to 0x00\n", |
| __func__, pg_num); |
| } |
| } |
| *reg = reg_addr; |
| return ret; |
| } |
| |
| static bool is_wcd9xxx_reg_power_down(struct wcd9xxx *wcd9xxx, u16 rreg) |
| { |
| bool ret = false; |
| int i; |
| struct wcd9xxx_power_region *wcd9xxx_pwr; |
| |
| if (!wcd9xxx) |
| return ret; |
| |
| for (i = 0; i < WCD9XXX_MAX_PWR_REGIONS; i++) { |
| wcd9xxx_pwr = wcd9xxx->wcd9xxx_pwr[i]; |
| if (!wcd9xxx_pwr) |
| continue; |
| if (((wcd9xxx_pwr->pwr_collapse_reg_min == 0) && |
| (wcd9xxx_pwr->pwr_collapse_reg_max == 0)) || |
| (wcd9xxx_pwr->power_state == |
| WCD_REGION_POWER_COLLAPSE_REMOVE)) |
| ret = false; |
| else if (((wcd9xxx_pwr->power_state == |
| WCD_REGION_POWER_DOWN) || |
| (wcd9xxx_pwr->power_state == |
| WCD_REGION_POWER_COLLAPSE_BEGIN)) && |
| (rreg >= wcd9xxx_pwr->pwr_collapse_reg_min) && |
| (rreg <= wcd9xxx_pwr->pwr_collapse_reg_max)) |
| ret = true; |
| } |
| return ret; |
| } |
| |
| static int regmap_bus_read(void *context, const void *reg, size_t reg_size, |
| void *val, size_t val_size) |
| { |
| struct device *dev = context; |
| struct wcd9xxx *wcd9xxx = dev_get_drvdata(dev); |
| unsigned short c_reg, rreg; |
| int ret, i; |
| |
| if (!wcd9xxx) { |
| dev_err(dev, "%s: wcd9xxx is NULL\n", __func__); |
| return -EINVAL; |
| } |
| if (!reg || !val) { |
| dev_err(dev, "%s: reg or val is NULL\n", __func__); |
| return -EINVAL; |
| } |
| |
| if (reg_size != REG_BYTES) { |
| dev_err(dev, "%s: register size %zd bytes, not supported\n", |
| __func__, reg_size); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&wcd9xxx->io_lock); |
| c_reg = *(u16 *)reg; |
| rreg = c_reg; |
| |
| if (is_wcd9xxx_reg_power_down(wcd9xxx, rreg)) { |
| ret = 0; |
| for (i = 0; i < val_size; i++) |
| ((u8 *)val)[i] = 0; |
| goto err; |
| } |
| ret = wcd9xxx_page_write(wcd9xxx, &c_reg); |
| if (ret) |
| goto err; |
| ret = wcd9xxx->read_dev(wcd9xxx, c_reg, val_size, val, false); |
| if (ret < 0) |
| dev_err(dev, "%s: Codec read failed (%d), reg: 0x%x, size:%zd\n", |
| __func__, ret, rreg, val_size); |
| else { |
| for (i = 0; i < val_size; i++) |
| dev_dbg(dev, "%s: Read 0x%02x from 0x%x\n", |
| __func__, ((u8 *)val)[i], rreg + i); |
| } |
| err: |
| mutex_unlock(&wcd9xxx->io_lock); |
| |
| return ret; |
| } |
| |
| static int __wcd9xxx_reg_read( |
| struct wcd9xxx *wcd9xxx, |
| unsigned short reg) |
| { |
| unsigned int val = 0; |
| int ret; |
| |
| if (wcd9xxx->using_regmap) { |
| ret = regmap_read(wcd9xxx->regmap, reg, &val); |
| } else { |
| mutex_lock(&wcd9xxx->io_lock); |
| ret = wcd9xxx_read(wcd9xxx, reg, 1, &val, false); |
| mutex_unlock(&wcd9xxx->io_lock); |
| } |
| |
| if (ret < 0) |
| return ret; |
| else |
| return val; |
| } |
| |
| int wcd9xxx_reg_read( |
| struct wcd9xxx_core_resource *core_res, |
| unsigned short reg) |
| { |
| struct wcd9xxx *wcd9xxx = (struct wcd9xxx *) core_res->parent; |
| return __wcd9xxx_reg_read(wcd9xxx, reg); |
| |
| } |
| EXPORT_SYMBOL(wcd9xxx_reg_read); |
| |
| static int wcd9xxx_write(struct wcd9xxx *wcd9xxx, unsigned short reg, |
| int bytes, void *src, bool interface_reg) |
| { |
| int i; |
| |
| if (bytes <= 0) { |
| pr_err("%s: Error, invalid write length\n", __func__); |
| return -EINVAL; |
| } |
| |
| for (i = 0; i < bytes; i++) |
| dev_dbg(wcd9xxx->dev, "Write %02x to 0x%x\n", ((u8 *)src)[i], |
| reg + i); |
| |
| return wcd9xxx->write_dev(wcd9xxx, reg, bytes, src, interface_reg); |
| } |
| |
| static int regmap_slim_multi_reg_write(void *context, |
| const void *data, size_t count) |
| { |
| struct device *dev = context; |
| struct wcd9xxx *wcd9xxx = dev_get_drvdata(dev); |
| unsigned int reg; |
| u8 val[WCD9335_PAGE_SIZE]; |
| int ret = 0; |
| int i = 0; |
| int n = 0; |
| unsigned int page_num; |
| size_t num_regs = (count / (REG_BYTES + VAL_BYTES)); |
| struct wcd9xxx_reg_val *bulk_reg; |
| u8 *buf; |
| |
| if (!wcd9xxx) { |
| dev_err(dev, "%s: wcd9xxx is NULL\n", __func__); |
| return -EINVAL; |
| } |
| if (!data) { |
| dev_err(dev, "%s: data is NULL\n", __func__); |
| return -EINVAL; |
| } |
| if (num_regs == 0) |
| return -EINVAL; |
| |
| bulk_reg = kzalloc(num_regs * (sizeof(struct wcd9xxx_reg_val)), |
| GFP_KERNEL); |
| if (!bulk_reg) |
| return -ENOMEM; |
| |
| buf = (u8 *)data; |
| reg = *(u16 *)buf; |
| page_num = WCD9XXX_PAGE_NUM(reg); |
| for (i = 0, n = 0; n < num_regs; i++, n++) { |
| reg = *(u16 *)buf; |
| if (page_num != WCD9XXX_PAGE_NUM(reg)) { |
| ret = wcd9xxx_slim_bulk_write(wcd9xxx, bulk_reg, |
| i, false); |
| page_num = WCD9XXX_PAGE_NUM(reg); |
| i = 0; |
| } |
| buf += REG_BYTES; |
| val[i] = *buf; |
| buf += VAL_BYTES; |
| bulk_reg[i].reg = reg; |
| bulk_reg[i].buf = &val[i]; |
| bulk_reg[i].bytes = 1; |
| } |
| ret = wcd9xxx_slim_bulk_write(wcd9xxx, bulk_reg, |
| i, false); |
| if (ret) |
| dev_err(dev, "%s: error writing bulk regs\n", |
| __func__); |
| |
| kfree(bulk_reg); |
| return ret; |
| } |
| |
| static int regmap_bus_gather_write(void *context, |
| const void *reg, size_t reg_size, |
| const void *val, size_t val_size) |
| { |
| struct device *dev = context; |
| struct wcd9xxx *wcd9xxx = dev_get_drvdata(dev); |
| unsigned short c_reg, rreg; |
| int ret, i; |
| |
| if (!wcd9xxx) { |
| dev_err(dev, "%s: wcd9xxx is NULL\n", __func__); |
| return -EINVAL; |
| } |
| if (!reg || !val) { |
| dev_err(dev, "%s: reg or val is NULL\n", __func__); |
| return -EINVAL; |
| } |
| if (reg_size != REG_BYTES) { |
| dev_err(dev, "%s: register size %zd bytes, not supported\n", |
| __func__, reg_size); |
| return -EINVAL; |
| } |
| mutex_lock(&wcd9xxx->io_lock); |
| c_reg = *(u16 *)reg; |
| rreg = c_reg; |
| |
| if (is_wcd9xxx_reg_power_down(wcd9xxx, rreg)) { |
| ret = 0; |
| goto err; |
| } |
| ret = wcd9xxx_page_write(wcd9xxx, &c_reg); |
| if (ret) |
| goto err; |
| |
| for (i = 0; i < val_size; i++) |
| dev_dbg(dev, "Write %02x to 0x%x\n", ((u8 *)val)[i], |
| rreg + i); |
| |
| ret = wcd9xxx->write_dev(wcd9xxx, c_reg, val_size, (void *) val, |
| false); |
| if (ret < 0) |
| dev_err(dev, "%s: Codec write failed (%d), reg:0x%x, size:%zd\n", |
| __func__, ret, rreg, val_size); |
| |
| err: |
| mutex_unlock(&wcd9xxx->io_lock); |
| return ret; |
| } |
| |
| static int regmap_bus_write(void *context, const void *data, size_t count) |
| { |
| WARN_ON(count < REG_BYTES); |
| |
| if (count > (REG_BYTES + VAL_BYTES)) |
| return regmap_slim_multi_reg_write(context, data, count); |
| else |
| return regmap_bus_gather_write(context, data, REG_BYTES, |
| data + REG_BYTES, |
| count - REG_BYTES); |
| } |
| |
| static int __wcd9xxx_reg_write( |
| struct wcd9xxx *wcd9xxx, |
| unsigned short reg, u8 val) |
| { |
| int ret; |
| |
| if (wcd9xxx->using_regmap) |
| ret = regmap_write(wcd9xxx->regmap, reg, val); |
| else { |
| mutex_lock(&wcd9xxx->io_lock); |
| ret = wcd9xxx_write(wcd9xxx, reg, 1, &val, false); |
| mutex_unlock(&wcd9xxx->io_lock); |
| } |
| |
| return ret; |
| } |
| |
| static int __wcd9xxx_reg_update_bits(struct wcd9xxx *wcd9xxx, |
| unsigned short reg, u8 mask, u8 val) |
| { |
| int ret; |
| u8 orig, tmp; |
| |
| if (wcd9xxx->using_regmap) |
| ret = regmap_update_bits(wcd9xxx->regmap, reg, mask, val); |
| else { |
| mutex_lock(&wcd9xxx->io_lock); |
| ret = wcd9xxx_read(wcd9xxx, reg, 1, &orig, false); |
| if (ret < 0) { |
| dev_err(wcd9xxx->dev, "%s: Codec read 0x%x failed\n", |
| __func__, reg); |
| goto err; |
| } |
| tmp = orig & ~mask; |
| tmp |= val & mask; |
| if (tmp != orig) |
| ret = wcd9xxx_write(wcd9xxx, reg, 1, &tmp, false); |
| err: |
| mutex_unlock(&wcd9xxx->io_lock); |
| } |
| return ret; |
| } |
| |
| int wcd9xxx_reg_update_bits( |
| struct wcd9xxx_core_resource *core_res, |
| unsigned short reg, u8 mask, u8 val) |
| { |
| struct wcd9xxx *wcd9xxx = (struct wcd9xxx *) core_res->parent; |
| return __wcd9xxx_reg_update_bits(wcd9xxx, reg, mask, val); |
| } |
| EXPORT_SYMBOL(wcd9xxx_reg_update_bits); |
| |
| int wcd9xxx_reg_write( |
| struct wcd9xxx_core_resource *core_res, |
| unsigned short reg, u8 val) |
| { |
| struct wcd9xxx *wcd9xxx = (struct wcd9xxx *) core_res->parent; |
| return __wcd9xxx_reg_write(wcd9xxx, reg, val); |
| } |
| EXPORT_SYMBOL(wcd9xxx_reg_write); |
| |
| static u8 wcd9xxx_pgd_la; |
| static u8 wcd9xxx_inf_la; |
| |
| int wcd9xxx_interface_reg_read(struct wcd9xxx *wcd9xxx, unsigned short reg) |
| { |
| u8 val; |
| int ret; |
| |
| mutex_lock(&wcd9xxx->io_lock); |
| ret = wcd9xxx_read(wcd9xxx, reg, 1, &val, true); |
| mutex_unlock(&wcd9xxx->io_lock); |
| |
| if (ret < 0) |
| return ret; |
| else |
| return val; |
| } |
| EXPORT_SYMBOL(wcd9xxx_interface_reg_read); |
| |
| int wcd9xxx_interface_reg_write(struct wcd9xxx *wcd9xxx, unsigned short reg, |
| u8 val) |
| { |
| int ret; |
| |
| mutex_lock(&wcd9xxx->io_lock); |
| ret = wcd9xxx_write(wcd9xxx, reg, 1, &val, true); |
| mutex_unlock(&wcd9xxx->io_lock); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL(wcd9xxx_interface_reg_write); |
| |
| static int __wcd9xxx_bulk_read( |
| struct wcd9xxx *wcd9xxx, |
| unsigned short reg, |
| int count, u8 *buf) |
| { |
| int ret; |
| |
| if (wcd9xxx->using_regmap) { |
| ret = regmap_bulk_read(wcd9xxx->regmap, reg, buf, count); |
| } else { |
| mutex_lock(&wcd9xxx->io_lock); |
| ret = wcd9xxx_read(wcd9xxx, reg, count, buf, false); |
| mutex_unlock(&wcd9xxx->io_lock); |
| } |
| |
| return ret; |
| } |
| |
| int wcd9xxx_bulk_read( |
| struct wcd9xxx_core_resource *core_res, |
| unsigned short reg, |
| int count, u8 *buf) |
| { |
| struct wcd9xxx *wcd9xxx = |
| (struct wcd9xxx *) core_res->parent; |
| return __wcd9xxx_bulk_read(wcd9xxx, reg, count, buf); |
| } |
| EXPORT_SYMBOL(wcd9xxx_bulk_read); |
| |
| static int __wcd9xxx_bulk_write(struct wcd9xxx *wcd9xxx, unsigned short reg, |
| int count, u8 *buf) |
| { |
| int ret; |
| |
| if (wcd9xxx->using_regmap) { |
| ret = regmap_bulk_write(wcd9xxx->regmap, reg, buf, count); |
| } else { |
| mutex_lock(&wcd9xxx->io_lock); |
| ret = wcd9xxx_write(wcd9xxx, reg, count, buf, false); |
| mutex_unlock(&wcd9xxx->io_lock); |
| } |
| |
| return ret; |
| } |
| |
| int wcd9xxx_bulk_write( |
| struct wcd9xxx_core_resource *core_res, |
| unsigned short reg, int count, u8 *buf) |
| { |
| struct wcd9xxx *wcd9xxx = |
| (struct wcd9xxx *) core_res->parent; |
| return __wcd9xxx_bulk_write(wcd9xxx, reg, count, buf); |
| } |
| EXPORT_SYMBOL(wcd9xxx_bulk_write); |
| |
| /* |
| * wcd9xxx_get_current_power_state: Get power state of the region |
| * @wcd9xxx: handle to wcd core |
| * @region: region index |
| * |
| * Returns current power state of the region or error code for failure |
| */ |
| int wcd9xxx_get_current_power_state(struct wcd9xxx *wcd9xxx, |
| enum wcd_power_regions region) |
| { |
| int state; |
| |
| if (!wcd9xxx) { |
| pr_err("%s: wcd9xxx is NULL\n", __func__); |
| return -EINVAL; |
| } |
| |
| if ((region < 0) || (region >= WCD9XXX_MAX_PWR_REGIONS)) { |
| dev_err(wcd9xxx->dev, "%s: region index %d out of bounds\n", |
| __func__, region); |
| return -EINVAL; |
| } |
| if (!wcd9xxx->wcd9xxx_pwr[region]) { |
| dev_err(wcd9xxx->dev, "%s: memory not created for region: %d\n", |
| __func__, region); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&wcd9xxx->io_lock); |
| state = wcd9xxx->wcd9xxx_pwr[region]->power_state; |
| mutex_unlock(&wcd9xxx->io_lock); |
| |
| return state; |
| } |
| EXPORT_SYMBOL(wcd9xxx_get_current_power_state); |
| |
| /* |
| * wcd9xxx_set_power_state: set power state for the region |
| * @wcd9xxx: handle to wcd core |
| * @state: power state to be set |
| * @region: region index |
| * |
| * Returns error code in case of failure or 0 for success |
| */ |
| int wcd9xxx_set_power_state(struct wcd9xxx *wcd9xxx, |
| enum codec_power_states state, |
| enum wcd_power_regions region) |
| { |
| if (!wcd9xxx) { |
| pr_err("%s: wcd9xxx is NULL\n", __func__); |
| return -EINVAL; |
| } |
| |
| if ((region < 0) || (region >= WCD9XXX_MAX_PWR_REGIONS)) { |
| dev_err(wcd9xxx->dev, "%s: region index %d out of bounds\n", |
| __func__, region); |
| return -EINVAL; |
| } |
| if (!wcd9xxx->wcd9xxx_pwr[region]) { |
| dev_err(wcd9xxx->dev, "%s: memory not created for region: %d\n", |
| __func__, region); |
| return -EINVAL; |
| } |
| mutex_lock(&wcd9xxx->io_lock); |
| wcd9xxx->wcd9xxx_pwr[region]->power_state = state; |
| mutex_unlock(&wcd9xxx->io_lock); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(wcd9xxx_set_power_state); |
| |
| static int wcd9xxx_slim_read_device(struct wcd9xxx *wcd9xxx, unsigned short reg, |
| int bytes, void *dest, bool interface) |
| { |
| int ret; |
| struct slim_ele_access msg; |
| int slim_read_tries = WCD9XXX_SLIM_RW_MAX_TRIES; |
| msg.start_offset = WCD9XXX_REGISTER_START_OFFSET + reg; |
| msg.num_bytes = bytes; |
| msg.comp = NULL; |
| |
| if (!wcd9xxx->dev_up) { |
| dev_dbg_ratelimited( |
| wcd9xxx->dev, "%s: No read allowed. dev_up = %d\n", |
| __func__, wcd9xxx->dev_up); |
| return 0; |
| } |
| |
| while (1) { |
| mutex_lock(&wcd9xxx->xfer_lock); |
| ret = slim_request_val_element(interface ? |
| wcd9xxx->slim_slave : wcd9xxx->slim, |
| &msg, dest, bytes); |
| mutex_unlock(&wcd9xxx->xfer_lock); |
| if (likely(ret == 0) || (--slim_read_tries == 0)) |
| break; |
| usleep_range(5000, 5100); |
| } |
| |
| if (ret) |
| pr_err("%s: Error, Codec read failed (%d)\n", __func__, ret); |
| |
| return ret; |
| } |
| |
| static int wcd9xxx_slim_get_allowed_slice(struct wcd9xxx *wcd9xxx, |
| int bytes) |
| { |
| int allowed_sz = bytes; |
| |
| if (likely(bytes == SLIM_REPEAT_WRITE_MAX_SLICE)) |
| allowed_sz = 16; |
| else if (bytes >= 12) |
| allowed_sz = 12; |
| else if (bytes >= 8) |
| allowed_sz = 8; |
| else if (bytes >= 6) |
| allowed_sz = 6; |
| else if (bytes >= 4) |
| allowed_sz = 4; |
| else |
| allowed_sz = bytes; |
| |
| return allowed_sz; |
| } |
| |
| static int __wcd9xxx_slim_write_repeat(struct wcd9xxx *wcd9xxx, |
| unsigned short reg, |
| int bytes, void *src) |
| { |
| int ret = 0, bytes_to_write = bytes, bytes_allowed; |
| struct slim_ele_access slim_msg; |
| |
| slim_msg.start_offset = WCD9XXX_REGISTER_START_OFFSET + reg; |
| slim_msg.comp = NULL; |
| |
| if (unlikely(bytes > SLIM_REPEAT_WRITE_MAX_SLICE)) { |
| dev_err(wcd9xxx->dev, "%s: size %d not supported\n", |
| __func__, bytes); |
| return -EINVAL; |
| } |
| |
| if (!wcd9xxx->dev_up) { |
| dev_dbg_ratelimited( |
| wcd9xxx->dev, "%s: No write allowed. dev_up = %d\n", |
| __func__, wcd9xxx->dev_up); |
| return 0; |
| } |
| |
| while (bytes_to_write > 0) { |
| bytes_allowed = wcd9xxx_slim_get_allowed_slice(wcd9xxx, |
| bytes_to_write); |
| |
| slim_msg.num_bytes = bytes_allowed; |
| mutex_lock(&wcd9xxx->xfer_lock); |
| ret = slim_user_msg(wcd9xxx->slim, wcd9xxx->slim->laddr, |
| SLIM_MSG_MT_DEST_REFERRED_USER, |
| SLIM_USR_MC_REPEAT_CHANGE_VALUE, |
| &slim_msg, src, bytes_allowed); |
| mutex_unlock(&wcd9xxx->xfer_lock); |
| |
| if (ret) { |
| dev_err(wcd9xxx->dev, "%s: failed, ret = %d\n", |
| __func__, ret); |
| break; |
| } |
| |
| bytes_to_write = bytes_to_write - bytes_allowed; |
| src = ((u8 *)src) + bytes_allowed; |
| }; |
| |
| return ret; |
| } |
| |
| /* |
| * wcd9xxx_slim_write_repeat: Write the same register with multiple values |
| * @wcd9xxx: handle to wcd core |
| * @reg: register to be written |
| * @bytes: number of bytes to be written to reg |
| * @src: buffer with data content to be written to reg |
| * This API will write reg with bytes from src in a single slimbus |
| * transaction. All values from 1 to 16 are supported by this API. |
| */ |
| int wcd9xxx_slim_write_repeat(struct wcd9xxx *wcd9xxx, unsigned short reg, |
| int bytes, void *src) |
| { |
| int ret = 0; |
| |
| mutex_lock(&wcd9xxx->io_lock); |
| if (wcd9xxx->type == WCD9335) { |
| ret = wcd9xxx_page_write(wcd9xxx, ®); |
| if (ret) |
| goto err; |
| |
| ret = __wcd9xxx_slim_write_repeat(wcd9xxx, reg, bytes, src); |
| if (ret < 0) |
| dev_err(wcd9xxx->dev, |
| "%s: Codec repeat write failed (%d)\n", |
| __func__, ret); |
| } else { |
| ret = __wcd9xxx_slim_write_repeat(wcd9xxx, reg, bytes, src); |
| } |
| err: |
| mutex_unlock(&wcd9xxx->io_lock); |
| return ret; |
| } |
| EXPORT_SYMBOL(wcd9xxx_slim_write_repeat); |
| |
| /* |
| * wcd9xxx_slim_reserve_bw: API to reserve the slimbus bandwidth |
| * @wcd9xxx: Handle to the wcd9xxx core |
| * @bw_ops: value of the bandwidth that is requested |
| * @commit: Flag to indicate if bandwidth change is to be commited |
| * right away |
| */ |
| int wcd9xxx_slim_reserve_bw(struct wcd9xxx *wcd9xxx, |
| u32 bw_ops, bool commit) |
| { |
| if (!wcd9xxx || !wcd9xxx->slim) { |
| pr_err("%s: Invalid handle to %s\n", |
| __func__, |
| (!wcd9xxx) ? "wcd9xxx" : "slim_device"); |
| return -EINVAL; |
| } |
| |
| return slim_reservemsg_bw(wcd9xxx->slim, bw_ops, commit); |
| } |
| EXPORT_SYMBOL(wcd9xxx_slim_reserve_bw); |
| |
| /* Interface specifies whether the write is to the interface or general |
| * registers. |
| */ |
| static int wcd9xxx_slim_write_device(struct wcd9xxx *wcd9xxx, |
| unsigned short reg, int bytes, void *src, bool interface) |
| { |
| int ret; |
| struct slim_ele_access msg; |
| int slim_write_tries = WCD9XXX_SLIM_RW_MAX_TRIES; |
| msg.start_offset = WCD9XXX_REGISTER_START_OFFSET + reg; |
| msg.num_bytes = bytes; |
| msg.comp = NULL; |
| |
| if (!wcd9xxx->dev_up) { |
| dev_dbg_ratelimited( |
| wcd9xxx->dev, "%s: No write allowed. dev_up = %d\n", |
| __func__, wcd9xxx->dev_up); |
| return 0; |
| } |
| |
| while (1) { |
| mutex_lock(&wcd9xxx->xfer_lock); |
| ret = slim_change_val_element(interface ? |
| wcd9xxx->slim_slave : wcd9xxx->slim, |
| &msg, src, bytes); |
| mutex_unlock(&wcd9xxx->xfer_lock); |
| if (likely(ret == 0) || (--slim_write_tries == 0)) |
| break; |
| usleep_range(5000, 5100); |
| } |
| |
| if (ret) |
| pr_err("%s: Error, Codec write failed (%d)\n", __func__, ret); |
| |
| return ret; |
| } |
| |
| /* |
| * wcd9xxx_slim_bulk_write: API to write multiple registers with one descriptor |
| * @wcd9xxx: Handle to the wcd9xxx core |
| * @wcd9xxx_reg_val: structure holding register and values to be written |
| * @size: Indicates number of messages to be written with one descriptor |
| * @is_interface: Indicates whether the register is for slim interface or for |
| * general registers. |
| * @return: returns 0 if success or error information to the caller in case |
| * of failure. |
| */ |
| int wcd9xxx_slim_bulk_write(struct wcd9xxx *wcd9xxx, |
| struct wcd9xxx_reg_val *bulk_reg, |
| unsigned int size, bool is_interface) |
| { |
| int ret, i; |
| struct slim_val_inf *msgs; |
| unsigned short reg; |
| |
| if (!bulk_reg || !size || !wcd9xxx) { |
| pr_err("%s: Invalid parameters\n", __func__); |
| return -EINVAL; |
| } |
| |
| if (!wcd9xxx->dev_up) { |
| dev_dbg_ratelimited( |
| wcd9xxx->dev, "%s: No write allowed. dev_up = %d\n", |
| __func__, wcd9xxx->dev_up); |
| return 0; |
| } |
| |
| msgs = kzalloc(size * (sizeof(struct slim_val_inf)), GFP_KERNEL); |
| if (!msgs) { |
| ret = -ENOMEM; |
| goto mem_fail; |
| } |
| |
| mutex_lock(&wcd9xxx->io_lock); |
| reg = bulk_reg->reg; |
| for (i = 0; i < size; i++) { |
| msgs[i].start_offset = WCD9XXX_REGISTER_START_OFFSET + |
| (bulk_reg->reg & 0xFF); |
| msgs[i].num_bytes = bulk_reg->bytes; |
| msgs[i].wbuf = bulk_reg->buf; |
| bulk_reg++; |
| } |
| ret = wcd9xxx_page_write(wcd9xxx, ®); |
| if (ret) { |
| pr_err("%s: Page write error for reg: 0x%x\n", |
| __func__, reg); |
| goto err; |
| } |
| |
| ret = slim_bulk_msg_write(is_interface ? |
| wcd9xxx->slim_slave : wcd9xxx->slim, |
| SLIM_MSG_MT_CORE, |
| SLIM_MSG_MC_CHANGE_VALUE, msgs, size, |
| NULL, NULL); |
| if (ret) |
| pr_err("%s: Error, Codec bulk write failed (%d)\n", |
| __func__, ret); |
| /* 100 usec sleep is needed as per HW requirement */ |
| usleep_range(100, 110); |
| err: |
| mutex_unlock(&wcd9xxx->io_lock); |
| kfree(msgs); |
| mem_fail: |
| return ret; |
| } |
| EXPORT_SYMBOL(wcd9xxx_slim_bulk_write); |
| |
| static struct mfd_cell tabla1x_devs[] = { |
| { |
| .name = "tabla1x_codec", |
| }, |
| }; |
| |
| static struct mfd_cell tabla_devs[] = { |
| { |
| .name = "tabla_codec", |
| }, |
| }; |
| |
| static struct mfd_cell sitar_devs[] = { |
| { |
| .name = "sitar_codec", |
| }, |
| }; |
| |
| static struct mfd_cell taiko_devs[] = { |
| { |
| .name = "taiko_codec", |
| }, |
| }; |
| |
| static struct mfd_cell tapan_devs[] = { |
| { |
| .name = "tapan_codec", |
| }, |
| }; |
| |
| static struct mfd_cell tomtom_devs[] = { |
| { |
| .name = "tomtom_codec", |
| }, |
| }; |
| |
| static struct mfd_cell tasha_devs[] = { |
| { |
| .name = "tasha_codec", |
| }, |
| }; |
| |
| static const struct wcd9xxx_codec_type wcd9xxx_codecs[] = { |
| { |
| TABLA_MAJOR, cpu_to_le16(0x1), tabla1x_devs, |
| ARRAY_SIZE(tabla1x_devs), TABLA_NUM_IRQS, -1, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TABLA, 0x03, |
| }, |
| { |
| TABLA_MAJOR, cpu_to_le16(0x2), tabla_devs, |
| ARRAY_SIZE(tabla_devs), TABLA_NUM_IRQS, -1, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TABLA, 0x03 |
| }, |
| { |
| /* Siter version 1 has same major chip id with Tabla */ |
| TABLA_MAJOR, cpu_to_le16(0x0), sitar_devs, |
| ARRAY_SIZE(sitar_devs), SITAR_NUM_IRQS, -1, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TABLA, 0x01 |
| }, |
| { |
| SITAR_MAJOR, cpu_to_le16(0x1), sitar_devs, |
| ARRAY_SIZE(sitar_devs), SITAR_NUM_IRQS, -1, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TABLA, 0x01 |
| }, |
| { |
| SITAR_MAJOR, cpu_to_le16(0x2), sitar_devs, |
| ARRAY_SIZE(sitar_devs), SITAR_NUM_IRQS, -1, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TABLA, 0x01 |
| }, |
| { |
| TAIKO_MAJOR, cpu_to_le16(0x0), taiko_devs, |
| ARRAY_SIZE(taiko_devs), TAIKO_NUM_IRQS, 1, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x01 |
| }, |
| { |
| TAIKO_MAJOR, cpu_to_le16(0x1), taiko_devs, |
| ARRAY_SIZE(taiko_devs), TAIKO_NUM_IRQS, 2, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x01 |
| }, |
| { |
| TAPAN_MAJOR, cpu_to_le16(0x0), tapan_devs, |
| ARRAY_SIZE(tapan_devs), TAPAN_NUM_IRQS, -1, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x03 |
| }, |
| { |
| TAPAN_MAJOR, cpu_to_le16(0x1), tapan_devs, |
| ARRAY_SIZE(tapan_devs), TAPAN_NUM_IRQS, -1, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x03 |
| }, |
| { |
| TOMTOM_MAJOR, cpu_to_le16(0x0), tomtom_devs, |
| ARRAY_SIZE(tomtom_devs), TOMTOM_NUM_IRQS, 1, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x01 |
| }, |
| { |
| TOMTOM_MAJOR, cpu_to_le16(0x1), tomtom_devs, |
| ARRAY_SIZE(tomtom_devs), TOMTOM_NUM_IRQS, 2, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x01 |
| }, |
| { |
| TASHA_MAJOR, cpu_to_le16(0x0), tasha_devs, |
| ARRAY_SIZE(tasha_devs), TASHA_NUM_IRQS, -1, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x01 |
| }, |
| { |
| TASHA2P0_MAJOR, cpu_to_le16(0x1), tasha_devs, |
| ARRAY_SIZE(tasha_devs), TASHA_NUM_IRQS, 2, |
| WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x01 |
| }, |
| }; |
| |
| static void wcd9335_bring_up(struct wcd9xxx *wcd9xxx) |
| { |
| int val, byte0; |
| |
| val = __wcd9xxx_reg_read(wcd9xxx, |
| WCD9335_CHIP_TIER_CTRL_EFUSE_VAL_OUT0); |
| byte0 = __wcd9xxx_reg_read(wcd9xxx, |
| WCD9335_CHIP_TIER_CTRL_CHIP_ID_BYTE0); |
| |
| if ((val & 0x80) && (byte0 == 0x0)) { |
| dev_info(wcd9xxx->dev, "%s: wcd9335 codec version is v1.1\n", |
| __func__); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x01); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_SIDO_SIDO_CCL_2, 0xFC); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_SIDO_SIDO_CCL_4, 0x21); |
| __wcd9xxx_reg_write(wcd9xxx, |
| WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x5); |
| __wcd9xxx_reg_write(wcd9xxx, |
| WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x7); |
| __wcd9xxx_reg_write(wcd9xxx, |
| WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x3); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x3); |
| } else if (byte0 == 0x1) { |
| dev_info(wcd9xxx->dev, "%s: wcd9335 codec version is v2.0\n", |
| __func__); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x01); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_SIDO_SIDO_TEST_2, 0x00); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_SIDO_SIDO_CCL_8, 0x6F); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_BIAS_VBG_FINE_ADJ, 0x65); |
| __wcd9xxx_reg_write(wcd9xxx, |
| WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x5); |
| __wcd9xxx_reg_write(wcd9xxx, |
| WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x7); |
| __wcd9xxx_reg_write(wcd9xxx, |
| WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x3); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x3); |
| } else { |
| dev_info(wcd9xxx->dev, "%s: wcd9335 codec version is v1.0\n", |
| __func__); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x01); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_SIDO_SIDO_CCL_2, 0xFC); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_SIDO_SIDO_CCL_4, 0x21); |
| __wcd9xxx_reg_write(wcd9xxx, |
| WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x3); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x3); |
| } |
| } |
| |
| static void wcd9335_bring_down(struct wcd9xxx *wcd9xxx) |
| { |
| __wcd9xxx_reg_write(wcd9xxx, |
| WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x4); |
| } |
| |
| static void wcd9xxx_bring_up(struct wcd9xxx *wcd9xxx) |
| { |
| pr_debug("%s: Codec Type: %d\n", __func__, wcd9xxx->type); |
| |
| if (wcd9xxx->type == WCD9335) { |
| wcd9335_bring_up(wcd9xxx); |
| } else if (wcd9xxx->type == WCD9330) { |
| __wcd9xxx_reg_write(wcd9xxx, WCD9330_A_LEAKAGE_CTL, 0x4); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9330_A_CDC_CTL, 0); |
| /* wait for 5ms after codec reset for it to complete */ |
| usleep_range(5000, 5100); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9330_A_CDC_CTL, 0x1); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9330_A_LEAKAGE_CTL, 0x3); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9330_A_CDC_CTL, 0x3); |
| } else { |
| __wcd9xxx_reg_write(wcd9xxx, WCD9XXX_A_LEAKAGE_CTL, 0x4); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9XXX_A_CDC_CTL, 0); |
| usleep_range(5000, 5100); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9XXX_A_CDC_CTL, 3); |
| __wcd9xxx_reg_write(wcd9xxx, WCD9XXX_A_LEAKAGE_CTL, 3); |
| } |
| } |
| |
| static void wcd9xxx_bring_down(struct wcd9xxx *wcd9xxx) |
| { |
| unsigned short reg; |
| |
| if (wcd9xxx->type == WCD9335) { |
| wcd9335_bring_down(wcd9xxx); |
| return; |
| } else if (wcd9xxx->type == WCD9330) { |
| reg = WCD9330_A_LEAKAGE_CTL; |
| } else |
| reg = WCD9XXX_A_LEAKAGE_CTL; |
| |
| __wcd9xxx_reg_write(wcd9xxx, reg, 0x7); |
| __wcd9xxx_reg_write(wcd9xxx, reg, 0x6); |
| __wcd9xxx_reg_write(wcd9xxx, reg, 0xe); |
| __wcd9xxx_reg_write(wcd9xxx, reg, 0x8); |
| } |
| |
| static int wcd9xxx_reset(struct wcd9xxx *wcd9xxx) |
| { |
| int ret; |
| struct wcd9xxx_pdata *pdata = wcd9xxx->dev->platform_data; |
| |
| if (wcd9xxx->wcd_rst_np) { |
| /* use pinctrl and call into wcd-rst-gpio driver */ |
| ret = wcd_gpio_ctrl_select_sleep_state(wcd9xxx->wcd_rst_np); |
| if (ret) { |
| pr_err("%s: wcd sleep pinctrl state fail!\n", |
| __func__); |
| return ret; |
| } |
| /* 20ms sleep required after pulling the reset gpio to LOW */ |
| msleep(20); |
| ret = wcd_gpio_ctrl_select_active_state(wcd9xxx->wcd_rst_np); |
| if (ret) { |
| pr_err("%s: wcd active pinctrl state fail!\n", |
| __func__); |
| return ret; |
| } |
| /* 20ms sleep required after pulling the reset gpio to HIGH */ |
| msleep(20); |
| |
| return 0; |
| } |
| |
| if (wcd9xxx->reset_gpio && wcd9xxx->dev_up |
| && !pdata->use_pinctrl) { |
| ret = gpio_request(wcd9xxx->reset_gpio, "CDC_RESET"); |
| if (ret) { |
| pr_err("%s: Failed to request gpio %d\n", __func__, |
| wcd9xxx->reset_gpio); |
| wcd9xxx->reset_gpio = 0; |
| return ret; |
| } |
| } |
| if (wcd9xxx->reset_gpio) { |
| if (pdata->use_pinctrl) { |
| /* Reset the CDC PDM TLMM pins to a default state */ |
| ret = pinctrl_select_state(pinctrl_info.pinctrl, |
| pinctrl_info.extncodec_sus); |
| if (ret != 0) { |
| pr_err("%s: Failed to suspend reset pins, ret: %d\n", |
| __func__, ret); |
| return ret; |
| } |
| msleep(20); |
| ret = pinctrl_select_state(pinctrl_info.pinctrl, |
| pinctrl_info.extncodec_act); |
| if (ret != 0) { |
| pr_err("%s: Failed to enable gpio pins; ret=%d\n", |
| __func__, ret); |
| return ret; |
| } |
| msleep(20); |
| } else { |
| gpio_direction_output(wcd9xxx->reset_gpio, 0); |
| msleep(20); |
| gpio_direction_output(wcd9xxx->reset_gpio, 1); |
| msleep(20); |
| } |
| } |
| return 0; |
| } |
| |
| static void wcd9xxx_free_reset(struct wcd9xxx *wcd9xxx) |
| { |
| struct wcd9xxx_pdata *pdata = wcd9xxx->dev->platform_data; |
| |
| if (wcd9xxx->wcd_rst_np) { |
| wcd_gpio_ctrl_select_sleep_state(wcd9xxx->wcd_rst_np); |
| return; |
| } |
| |
| if (wcd9xxx->reset_gpio) { |
| if (!pdata->use_pinctrl) { |
| gpio_free(wcd9xxx->reset_gpio); |
| wcd9xxx->reset_gpio = 0; |
| } else |
| pinctrl_put(pinctrl_info.pinctrl); |
| } |
| } |
| |
| static void wcd9xxx_chip_version_ctrl_reg(struct wcd9xxx *wcd9xxx, |
| unsigned int *byte_0, |
| unsigned int *byte_1, |
| unsigned int *byte_2) |
| { |
| switch (wcd9xxx->type) { |
| case WCD9335: |
| *byte_0 = WCD9335_CHIP_TIER_CTRL_CHIP_ID_BYTE0; |
| *byte_1 = WCD9335_CHIP_TIER_CTRL_CHIP_ID_BYTE1; |
| *byte_2 = WCD9335_CHIP_TIER_CTRL_CHIP_ID_BYTE2; |
| break; |
| case WCD9330: |
| case WCD9XXX: |
| default: |
| *byte_0 = WCD9XXX_A_CHIP_ID_BYTE_0; |
| *byte_1 = WCD9XXX_A_CHIP_ID_BYTE_1; |
| *byte_2 = WCD9XXX_A_CHIP_ID_BYTE_2; |
| break; |
| } |
| |
| return; |
| } |
| |
| static const struct wcd9xxx_codec_type |
| *wcd9xxx_check_codec_type(struct wcd9xxx *wcd9xxx, u8 *version) |
| { |
| int i, rc; |
| const struct wcd9xxx_codec_type *c, *d = NULL; |
| unsigned int byte_0, byte_1, byte_2; |
| |
| wcd9xxx_chip_version_ctrl_reg(wcd9xxx, &byte_0, &byte_1, &byte_2); |
| |
| rc = __wcd9xxx_bulk_read(wcd9xxx, byte_0, |
| sizeof(wcd9xxx->id_minor), |
| (u8 *)&wcd9xxx->id_minor); |
| if (rc < 0) |
| goto exit; |
| |
| rc = __wcd9xxx_bulk_read(wcd9xxx, byte_2, |
| sizeof(wcd9xxx->id_major), |
| (u8 *)&wcd9xxx->id_major); |
| if (rc < 0) |
| goto exit; |
| dev_dbg(wcd9xxx->dev, "%s: wcd9xxx chip id major 0x%x, minor 0x%x\n", |
| __func__, wcd9xxx->id_major, wcd9xxx->id_minor); |
| |
| for (i = 0, c = &wcd9xxx_codecs[0]; i < ARRAY_SIZE(wcd9xxx_codecs); |
| i++, c++) { |
| if (c->id_major == wcd9xxx->id_major) { |
| if (c->id_minor == wcd9xxx->id_minor) { |
| d = c; |
| dev_dbg(wcd9xxx->dev, |
| "%s: exact match %s\n", __func__, |
| d->dev->name); |
| break; |
| } else if (!d) { |
| d = c; |
| } else { |
| if ((d->id_minor < c->id_minor) || |
| (d->id_minor == c->id_minor && |
| d->version < c->version)) |
| d = c; |
| } |
| dev_dbg(wcd9xxx->dev, |
| "%s: best match %s, major 0x%x, minor 0x%x\n", |
| __func__, d->dev->name, d->id_major, |
| d->id_minor); |
| } |
| } |
| |
| if (!d) { |
| dev_warn(wcd9xxx->dev, |
| "%s: driver for id major 0x%x, minor 0x%x not found\n", |
| __func__, wcd9xxx->id_major, wcd9xxx->id_minor); |
| } else { |
| if (d->version > -1) { |
| *version = d->version; |
| } else if (d->id_major == TASHA_MAJOR) { |
| rc = __wcd9xxx_reg_read(wcd9xxx, |
| WCD9335_CHIP_TIER_CTRL_EFUSE_VAL_OUT0); |
| if (rc < 0) { |
| d = NULL; |
| goto exit; |
| } |
| *version = ((u8)rc & 0x80) >> 7; |
| } else { |
| rc = __wcd9xxx_reg_read(wcd9xxx, |
| WCD9XXX_A_CHIP_VERSION); |
| if (rc < 0) { |
| d = NULL; |
| goto exit; |
| } |
| *version = (u8)rc & 0x1F; |
| } |
| dev_info(wcd9xxx->dev, |
| "%s: detected %s, major 0x%x, minor 0x%x, ver 0x%x\n", |
| __func__, d->dev->name, d->id_major, d->id_minor, |
| *version); |
| } |
| exit: |
| return d; |
| } |
| |
| static int wcd9xxx_num_irq_regs(const struct wcd9xxx *wcd9xxx) |
| { |
| return (wcd9xxx->codec_type->num_irqs / 8) + |
| ((wcd9xxx->codec_type->num_irqs % 8) ? 1 : 0); |
| } |
| |
| /* |
| * Interrupt table for v1 corresponds to newer version |
| * codecs (wcd9304 and wcd9310) |
| */ |
| static const struct intr_data intr_tbl_v1[] = { |
| {WCD9XXX_IRQ_SLIMBUS, false}, |
| {WCD9XXX_IRQ_MBHC_INSERTION, true}, |
| {WCD9XXX_IRQ_MBHC_POTENTIAL, true}, |
| {WCD9XXX_IRQ_MBHC_RELEASE, true}, |
| {WCD9XXX_IRQ_MBHC_PRESS, true}, |
| {WCD9XXX_IRQ_MBHC_SHORT_TERM, true}, |
| {WCD9XXX_IRQ_MBHC_REMOVAL, true}, |
| {WCD9XXX_IRQ_BG_PRECHARGE, false}, |
| {WCD9XXX_IRQ_PA1_STARTUP, false}, |
| {WCD9XXX_IRQ_PA2_STARTUP, false}, |
| {WCD9XXX_IRQ_PA3_STARTUP, false}, |
| {WCD9XXX_IRQ_PA4_STARTUP, false}, |
| {WCD9XXX_IRQ_PA5_STARTUP, false}, |
| {WCD9XXX_IRQ_MICBIAS1_PRECHARGE, false}, |
| {WCD9XXX_IRQ_MICBIAS2_PRECHARGE, false}, |
| {WCD9XXX_IRQ_MICBIAS3_PRECHARGE, false}, |
| {WCD9XXX_IRQ_HPH_PA_OCPL_FAULT, false}, |
| {WCD9XXX_IRQ_HPH_PA_OCPR_FAULT, false}, |
| {WCD9XXX_IRQ_EAR_PA_OCPL_FAULT, false}, |
| {WCD9XXX_IRQ_HPH_L_PA_STARTUP, false}, |
| {WCD9XXX_IRQ_HPH_R_PA_STARTUP, false}, |
| {WCD9320_IRQ_EAR_PA_STARTUP, false}, |
| {WCD9XXX_IRQ_RESERVED_0, false}, |
| {WCD9XXX_IRQ_RESERVED_1, false}, |
| }; |
| |
| /* |
| * Interrupt table for v2 corresponds to newer version |
| * codecs (wcd9320 and wcd9306) |
| */ |
| static const struct intr_data intr_tbl_v2[] = { |
| {WCD9XXX_IRQ_SLIMBUS, false}, |
| {WCD9XXX_IRQ_MBHC_INSERTION, true}, |
| {WCD9XXX_IRQ_MBHC_POTENTIAL, true}, |
| {WCD9XXX_IRQ_MBHC_RELEASE, true}, |
| {WCD9XXX_IRQ_MBHC_PRESS, true}, |
| {WCD9XXX_IRQ_MBHC_SHORT_TERM, true}, |
| {WCD9XXX_IRQ_MBHC_REMOVAL, true}, |
| {WCD9320_IRQ_MBHC_JACK_SWITCH, true}, |
| {WCD9306_IRQ_MBHC_JACK_SWITCH, true}, |
| {WCD9XXX_IRQ_BG_PRECHARGE, false}, |
| {WCD9XXX_IRQ_PA1_STARTUP, false}, |
| {WCD9XXX_IRQ_PA2_STARTUP, false}, |
| {WCD9XXX_IRQ_PA3_STARTUP, false}, |
| {WCD9XXX_IRQ_PA4_STARTUP, false}, |
| {WCD9306_IRQ_HPH_PA_OCPR_FAULT, false}, |
| {WCD9XXX_IRQ_PA5_STARTUP, false}, |
| {WCD9XXX_IRQ_MICBIAS1_PRECHARGE, false}, |
| {WCD9306_IRQ_HPH_PA_OCPL_FAULT, false}, |
| {WCD9XXX_IRQ_MICBIAS2_PRECHARGE, false}, |
| {WCD9XXX_IRQ_MICBIAS3_PRECHARGE, false}, |
| {WCD9XXX_IRQ_HPH_PA_OCPL_FAULT, false}, |
| {WCD9XXX_IRQ_HPH_PA_OCPR_FAULT, false}, |
| {WCD9XXX_IRQ_EAR_PA_OCPL_FAULT, false}, |
| {WCD9XXX_IRQ_HPH_L_PA_STARTUP, false}, |
| {WCD9XXX_IRQ_HPH_R_PA_STARTUP, false}, |
| {WCD9XXX_IRQ_RESERVED_0, false}, |
| {WCD9XXX_IRQ_RESERVED_1, false}, |
| {WCD9XXX_IRQ_MAD_AUDIO, false}, |
| {WCD9XXX_IRQ_MAD_BEACON, false}, |
| {WCD9XXX_IRQ_MAD_ULTRASOUND, false}, |
| {WCD9XXX_IRQ_SPEAKER_CLIPPING, false}, |
| {WCD9XXX_IRQ_VBAT_MONITOR_ATTACK, false}, |
| {WCD9XXX_IRQ_VBAT_MONITOR_RELEASE, false}, |
| }; |
| |
| /* |
| * Interrupt table for v3 corresponds to newer version |
| * codecs (wcd9330) |
| */ |
| static const struct intr_data intr_tbl_v3[] = { |
| {WCD9XXX_IRQ_SLIMBUS, false}, |
| {WCD9XXX_IRQ_MBHC_INSERTION, true}, |
| {WCD9XXX_IRQ_MBHC_POTENTIAL, true}, |
| {WCD9XXX_IRQ_MBHC_RELEASE, true}, |
| {WCD9XXX_IRQ_MBHC_PRESS, true}, |
| {WCD9XXX_IRQ_MBHC_SHORT_TERM, true}, |
| {WCD9XXX_IRQ_MBHC_REMOVAL, true}, |
| {WCD9330_IRQ_MBHC_JACK_SWITCH, true}, |
| {WCD9XXX_IRQ_BG_PRECHARGE, false}, |
| {WCD9XXX_IRQ_PA1_STARTUP, false}, |
| {WCD9XXX_IRQ_PA2_STARTUP, false}, |
| {WCD9XXX_IRQ_PA3_STARTUP, false}, |
| {WCD9XXX_IRQ_PA4_STARTUP, false}, |
| {WCD9XXX_IRQ_PA5_STARTUP, false}, |
| {WCD9XXX_IRQ_MICBIAS1_PRECHARGE, false}, |
| {WCD9XXX_IRQ_MICBIAS2_PRECHARGE, false}, |
| {WCD9XXX_IRQ_MICBIAS3_PRECHARGE, false}, |
| {WCD9XXX_IRQ_HPH_PA_OCPL_FAULT, false}, |
| {WCD9XXX_IRQ_HPH_PA_OCPR_FAULT, false}, |
| {WCD9XXX_IRQ_EAR_PA_OCPL_FAULT, false}, |
| {WCD9XXX_IRQ_HPH_L_PA_STARTUP, false}, |
| {WCD9XXX_IRQ_HPH_R_PA_STARTUP, false}, |
| {WCD9320_IRQ_EAR_PA_STARTUP, false}, |
| {WCD9330_IRQ_SVASS_ERR_EXCEPTION, false}, |
| {WCD9330_IRQ_SVASS_ENGINE, true}, |
| {WCD9330_IRQ_MAD_AUDIO, false}, |
| {WCD9330_IRQ_MAD_BEACON, false}, |
| {WCD9330_IRQ_MAD_ULTRASOUND, false}, |
| {WCD9330_IRQ_SPEAKER1_CLIPPING, false}, |
| {WCD9330_IRQ_SPEAKER2_CLIPPING, false}, |
| {WCD9330_IRQ_VBAT_MONITOR_ATTACK, false}, |
| {WCD9330_IRQ_VBAT_MONITOR_RELEASE, false}, |
| }; |
| |
| /* |
| * Interrupt table for v4 corresponds to newer version |
| * codecs (wcd9335) |
| */ |
| static const struct intr_data intr_tbl_v4[] = { |
| {WCD9XXX_IRQ_SLIMBUS, false}, |
| {WCD9335_IRQ_MBHC_SW_DET, true}, |
| {WCD9335_IRQ_MBHC_BUTTON_PRESS_DET, true}, |
| {WCD9335_IRQ_MBHC_BUTTON_RELEASE_DET, true}, |
| {WCD9335_IRQ_MBHC_ELECT_INS_REM_DET, true}, |
| {WCD9335_IRQ_MBHC_ELECT_INS_REM_LEG_DET, true}, |
| {WCD9335_IRQ_FLL_LOCK_LOSS, false}, |
| {WCD9335_IRQ_HPH_PA_CNPL_COMPLETE, false}, |
| {WCD9335_IRQ_HPH_PA_CNPR_COMPLETE, false}, |
| {WCD9335_IRQ_EAR_PA_CNP_COMPLETE, false}, |
| {WCD9335_IRQ_LINE_PA1_CNP_COMPLETE, false}, |
| {WCD9335_IRQ_LINE_PA2_CNP_COMPLETE, false}, |
| {WCD9335_IRQ_LINE_PA3_CNP_COMPLETE, false}, |
| {WCD9335_IRQ_LINE_PA4_CNP_COMPLETE, false}, |
| {WCD9335_IRQ_HPH_PA_OCPL_FAULT, false}, |
| {WCD9335_IRQ_HPH_PA_OCPR_FAULT, false}, |
| {WCD9335_IRQ_EAR_PA_OCP_FAULT, false}, |
| {WCD9335_IRQ_SOUNDWIRE, false}, |
| {WCD9335_IRQ_VDD_DIG_RAMP_COMPLETE, false}, |
| {WCD9335_IRQ_RCO_ERROR, false}, |
| {WCD9335_IRQ_SVA_ERROR, false}, |
| {WCD9335_IRQ_MAD_AUDIO, false}, |
| {WCD9335_IRQ_MAD_BEACON, false}, |
| {WCD9335_IRQ_SVA_OUTBOX1, true}, |
| {WCD9335_IRQ_SVA_OUTBOX2, true}, |
| {WCD9335_IRQ_MAD_ULTRASOUND, false}, |
| {WCD9335_IRQ_VBAT_ATTACK, false}, |
| {WCD9335_IRQ_VBAT_RESTORE, false}, |
| }; |
| |
| static int wcd9xxx_regmap_init_cache(struct wcd9xxx *wcd9xxx) |
| { |
| struct regmap_config *regmap_config; |
| int rc; |
| |
| regmap_config = wcd9xxx_get_regmap_config(wcd9xxx->type); |
| if (!regmap_config) { |
| dev_err(wcd9xxx->dev, "regmap config is not defined\n"); |
| return -EINVAL; |
| } |
| |
| rc = regmap_reinit_cache(wcd9xxx->regmap, regmap_config); |
| if (rc != 0) { |
| dev_err(wcd9xxx->dev, "%s:Failed to reinit register cache: %d\n", |
| __func__, rc); |
| } |
| |
| return rc; |
| } |
| |
| static void wcd9xxx_core_res_update_irq_regs( |
| struct wcd9xxx_core_resource *core_res, |
| u16 id_major) |
| { |
| switch (id_major) { |
| case TASHA_MAJOR: |
| case TASHA2P0_MAJOR: |
| core_res->intr_reg[WCD9XXX_INTR_STATUS_BASE] = |
| WCD9335_INTR_PIN1_STATUS0; |
| core_res->intr_reg[WCD9XXX_INTR_CLEAR_BASE] = |
| WCD9335_INTR_PIN1_CLEAR0; |
| core_res->intr_reg[WCD9XXX_INTR_MASK_BASE] = |
| WCD9335_INTR_PIN1_MASK0; |
| core_res->intr_reg[WCD9XXX_INTR_LEVEL_BASE] = |
| WCD9335_INTR_LEVEL0; |
| core_res->intr_reg[WCD9XXX_INTR_CLR_COMMIT] = |
| WCD9335_INTR_CLR_COMMIT; |
| break; |
| case TABLA_MAJOR: |
| case TOMTOM_MAJOR: |
| case TAIKO_MAJOR: |
| default: |
| core_res->intr_reg[WCD9XXX_INTR_STATUS_BASE] = |
| WCD9XXX_A_INTR_STATUS0; |
| core_res->intr_reg[WCD9XXX_INTR_CLEAR_BASE] = |
| WCD9XXX_A_INTR_CLEAR0; |
| core_res->intr_reg[WCD9XXX_INTR_MASK_BASE] = |
| WCD9XXX_A_INTR_MASK0; |
| core_res->intr_reg[WCD9XXX_INTR_LEVEL_BASE] = |
| WCD9XXX_A_INTR_LEVEL0; |
| core_res->intr_reg[WCD9XXX_INTR_CLR_COMMIT] = |
| WCD9XXX_A_INTR_MODE; |
| break; |
| }; |
| } |
| |
| static int wcd9xxx_device_init(struct wcd9xxx *wcd9xxx) |
| { |
| int ret = 0; |
| u8 version; |
| const struct wcd9xxx_codec_type *found; |
| struct wcd9xxx_core_resource *core_res = &wcd9xxx->core_res; |
| regmap_patch_fptr regmap_apply_patch = NULL; |
| |
| mutex_init(&wcd9xxx->io_lock); |
| mutex_init(&wcd9xxx->xfer_lock); |
| |
| dev_set_drvdata(wcd9xxx->dev, wcd9xxx); |
| wcd9xxx_bring_up(wcd9xxx); |
| |
| found = wcd9xxx_check_codec_type(wcd9xxx, &version); |
| if (!found) { |
| ret = -ENODEV; |
| goto err; |
| } else { |
| wcd9xxx->codec_type = found; |
| wcd9xxx->version = version; |
| } |
| |
| core_res->parent = wcd9xxx; |
| core_res->dev = wcd9xxx->dev; |
| |
| if (wcd9xxx->codec_type->id_major == TABLA_MAJOR |
| || wcd9xxx->codec_type->id_major == SITAR_MAJOR) { |
| core_res->intr_table = intr_tbl_v1; |
| core_res->intr_table_size = ARRAY_SIZE(intr_tbl_v1); |
| } else if (wcd9xxx->codec_type->id_major == TOMTOM_MAJOR) { |
| core_res->intr_table = intr_tbl_v3; |
| core_res->intr_table_size = ARRAY_SIZE(intr_tbl_v3); |
| } else if ((wcd9xxx->codec_type->id_major == TASHA_MAJOR) || |
| (wcd9xxx->codec_type->id_major == TASHA2P0_MAJOR)) { |
| core_res->intr_table = intr_tbl_v4; |
| core_res->intr_table_size = ARRAY_SIZE(intr_tbl_v4); |
| } else { |
| core_res->intr_table = intr_tbl_v2; |
| core_res->intr_table_size = ARRAY_SIZE(intr_tbl_v2); |
| } |
| wcd9xxx_core_res_update_irq_regs(&wcd9xxx->core_res, |
| wcd9xxx->codec_type->id_major); |
| |
| wcd9xxx_core_res_init(&wcd9xxx->core_res, |
| wcd9xxx->codec_type->num_irqs, |
| wcd9xxx_num_irq_regs(wcd9xxx), |
| wcd9xxx_reg_read, wcd9xxx_reg_write, |
| wcd9xxx_bulk_read, wcd9xxx_bulk_write); |
| |
| if (wcd9xxx_core_irq_init(&wcd9xxx->core_res)) |
| goto err; |
| |
| /* If codec uses regmap, initialize regmap register cache */ |
| if (wcd9xxx->using_regmap) { |
| ret = wcd9xxx_regmap_init_cache(wcd9xxx); |
| if (ret) |
| goto err_irq; |
| |
| regmap_apply_patch = wcd9xxx_get_regmap_reg_patch( |
| wcd9xxx->type); |
| if (regmap_apply_patch) { |
| ret = regmap_apply_patch(wcd9xxx->regmap, |
| wcd9xxx->version); |
| if (ret) |
| dev_err(wcd9xxx->dev, |
| "Failed to register patch: %d\n", ret); |
| } |
| } |
| |
| ret = mfd_add_devices(wcd9xxx->dev, -1, found->dev, found->size, |
| NULL, 0, NULL); |
| if (ret != 0) { |
| dev_err(wcd9xxx->dev, "Failed to add children: %d\n", ret); |
| goto err_irq; |
| } |
| |
| ret = device_init_wakeup(wcd9xxx->dev, true); |
| if (ret) { |
| dev_err(wcd9xxx->dev, "Device wakeup init failed: %d\n", ret); |
| goto err_irq; |
| } |
| |
| return ret; |
| err_irq: |
| wcd9xxx_irq_exit(&wcd9xxx->core_res); |
| err: |
| wcd9xxx_bring_down(wcd9xxx); |
| wcd9xxx_core_res_deinit(&wcd9xxx->core_res); |
| mutex_destroy(&wcd9xxx->io_lock); |
| mutex_destroy(&wcd9xxx->xfer_lock); |
| return ret; |
| } |
| |
| static void wcd9xxx_device_exit(struct wcd9xxx *wcd9xxx) |
| { |
| device_init_wakeup(wcd9xxx->dev, false); |
| wcd9xxx_irq_exit(&wcd9xxx->core_res); |
| wcd9xxx_bring_down(wcd9xxx); |
| wcd9xxx_free_reset(wcd9xxx); |
| wcd9xxx_core_res_deinit(&wcd9xxx->core_res); |
| mutex_destroy(&wcd9xxx->io_lock); |
| mutex_destroy(&wcd9xxx->xfer_lock); |
| if (wcd9xxx_get_intf_type() == WCD9XXX_INTERFACE_TYPE_SLIMBUS) |
| slim_remove_device(wcd9xxx->slim_slave); |
| kfree(wcd9xxx); |
| } |
| |
| |
| #ifdef CONFIG_DEBUG_FS |
| struct wcd9xxx *debugCodec; |
| |
| static struct dentry *debugfs_wcd9xxx_dent; |
| static struct dentry *debugfs_peek; |
| static struct dentry *debugfs_poke; |
| static struct dentry *debugfs_power_state; |
| static struct dentry *debugfs_reg_dump; |
| |
| static unsigned char read_data; |
| |
| static int codec_debug_open(struct inode *inode, struct file *file) |
| { |
| file->private_data = inode->i_private; |
| return 0; |
| } |
| |
| static int get_parameters(char *buf, long int *param1, int num_of_par) |
| { |
| char *token; |
| int base, cnt; |
| |
| token = strsep(&buf, " "); |
| |
| for (cnt = 0; cnt < num_of_par; cnt++) { |
| if (token != NULL) { |
| if ((token[1] == 'x') || (token[1] == 'X')) |
| base = 16; |
| else |
| base = 10; |
| |
| if (kstrtoul(token, base, ¶m1[cnt]) != 0) |
| return -EINVAL; |
| |
| token = strsep(&buf, " "); |
| } else |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static ssize_t wcd9xxx_slimslave_reg_show(char __user *ubuf, size_t count, |
| loff_t *ppos) |
| { |
| int i, reg_val, len; |
| ssize_t total = 0; |
| char tmp_buf[25]; /* each line is 12 bytes but 25 for margin of error */ |
| |
| for (i = (int) *ppos / 12; i <= SLIM_MAX_REG_ADDR; i++) { |
| reg_val = wcd9xxx_interface_reg_read(debugCodec, i); |
| len = snprintf(tmp_buf, sizeof(tmp_buf), |
| "0x%.3x: 0x%.2x\n", i, reg_val); |
| |
| if ((total + len) >= count - 1) |
| break; |
| if (copy_to_user((ubuf + total), tmp_buf, len)) { |
| pr_err("%s: fail to copy reg dump\n", __func__); |
| total = -EFAULT; |
| goto copy_err; |
| } |
| *ppos += len; |
| total += len; |
| } |
| |
| copy_err: |
| return total; |
| } |
| |
| static ssize_t codec_debug_read(struct file *file, char __user *ubuf, |
| size_t count, loff_t *ppos) |
| { |
| char lbuf[8]; |
| char *access_str = file->private_data; |
| ssize_t ret_cnt; |
| |
| if (*ppos < 0 || !count) |
| return -EINVAL; |
| |
| if (!strcmp(access_str, "slimslave_peek")) { |
| snprintf(lbuf, sizeof(lbuf), "0x%x\n", read_data); |
| ret_cnt = simple_read_from_buffer(ubuf, count, ppos, lbuf, |
| strnlen(lbuf, 7)); |
| } else if (!strcmp(access_str, "slimslave_reg_dump")) { |
| ret_cnt = wcd9xxx_slimslave_reg_show(ubuf, count, ppos); |
| } else { |
| pr_err("%s: %s not permitted to read\n", __func__, access_str); |
| ret_cnt = -EPERM; |
| } |
| |
| return ret_cnt; |
| } |
| |
| /* |
| * Place inside CONFIG_DEBUG section as this function is only used by debugfs |
| * function |
| */ |
| static void wcd9xxx_set_reset_pin_state(struct wcd9xxx *wcd9xxx, |
| struct wcd9xxx_pdata *pdata, |
| bool active) |
| { |
| if (wcd9xxx->wcd_rst_np) { |
| if (active) |
| wcd_gpio_ctrl_select_active_state(wcd9xxx->wcd_rst_np); |
| else |
| wcd_gpio_ctrl_select_sleep_state(wcd9xxx->wcd_rst_np); |
| |
| return; |
| } |
| |
| if (pdata->use_pinctrl) { |
| if (active == true) |
| pinctrl_select_state(pinctrl_info.pinctrl, |
| pinctrl_info.extncodec_act); |
| else |
| pinctrl_select_state(pinctrl_info.pinctrl, |
| pinctrl_info.extncodec_sus); |
| } else |
| gpio_direction_output(wcd9xxx->reset_gpio, |
| (active == true ? 1 : 0)); |
| } |
| |
| static int codec_debug_process_cdc_power(char *lbuf) |
| { |
| long int param; |
| int rc; |
| struct wcd9xxx_pdata *pdata; |
| |
| if (wcd9xxx_get_intf_type() != WCD9XXX_INTERFACE_TYPE_SLIMBUS) { |
| pr_err("%s: CODEC is not in SLIMBUS mode\n", __func__); |
| rc = -EPERM; |
| goto error_intf; |
| } |
| |
| rc = get_parameters(lbuf, ¶m, 1); |
| |
| if (likely(!rc)) { |
| pdata = debugCodec->slim->dev.platform_data; |
| if (param == 0) { |
| wcd9xxx_slim_device_down(debugCodec->slim); |
| wcd9xxx_disable_supplies(debugCodec, pdata); |
| wcd9xxx_set_reset_pin_state(debugCodec, pdata, false); |
| } else if (param == 1) { |
| wcd9xxx_enable_static_supplies(debugCodec, pdata); |
| usleep_range(1000, 2000); |
| wcd9xxx_set_reset_pin_state(debugCodec, pdata, false); |
| usleep_range(1000, 2000); |
| wcd9xxx_set_reset_pin_state(debugCodec, pdata, true); |
| usleep_range(1000, 2000); |
| wcd9xxx_slim_device_up(debugCodec->slim); |
| } else { |
| pr_err("%s: invalid command %ld\n", __func__, param); |
| } |
| } |
| |
| error_intf: |
| return rc; |
| } |
| |
| static ssize_t codec_debug_write(struct file *filp, |
| const char __user *ubuf, size_t cnt, loff_t *ppos) |
| { |
| char *access_str = filp->private_data; |
| char lbuf[32]; |
| int rc; |
| long int param[5]; |
| |
| if (cnt > sizeof(lbuf) - 1) |
| return -EINVAL; |
| |
| rc = copy_from_user(lbuf, ubuf, cnt); |
| if (rc) |
| return -EFAULT; |
| |
| lbuf[cnt] = '\0'; |
| |
| if (!strcmp(access_str, "slimslave_poke")) { |
| /* write */ |
| rc = get_parameters(lbuf, param, 2); |
| if ((param[0] <= 0x3FF) && (param[1] <= 0xFF) && |
| (rc == 0)) |
| wcd9xxx_interface_reg_write(debugCodec, param[0], |
| param[1]); |
| else |
| rc = -EINVAL; |
| } else if (!strcmp(access_str, "slimslave_peek")) { |
| /* read */ |
| rc = get_parameters(lbuf, param, 1); |
| if ((param[0] <= 0x3FF) && (rc == 0)) |
| read_data = wcd9xxx_interface_reg_read(debugCodec, |
| param[0]); |
| else |
| rc = -EINVAL; |
| } else if (!strcmp(access_str, "power_state")) { |
| rc = codec_debug_process_cdc_power(lbuf); |
| } |
| |
| if (rc == 0) |
| rc = cnt; |
| else |
| pr_err("%s: rc = %d\n", __func__, rc); |
| |
| return rc; |
| } |
| |
| static const struct file_operations codec_debug_ops = { |
| .open = codec_debug_open, |
| .write = codec_debug_write, |
| .read = codec_debug_read |
| }; |
| #endif |
| |
| static int wcd9xxx_init_supplies(struct wcd9xxx *wcd9xxx, |
| struct wcd9xxx_pdata *pdata) |
| { |
| int ret; |
| int i; |
| wcd9xxx->supplies = kzalloc(sizeof(struct regulator_bulk_data) * |
| ARRAY_SIZE(pdata->regulator), |
| GFP_KERNEL); |
| if (!wcd9xxx->supplies) { |
| ret = -ENOMEM; |
| goto err; |
| } |
| |
| wcd9xxx->num_of_supplies = 0; |
| |
| if (ARRAY_SIZE(pdata->regulator) > WCD9XXX_MAX_REGULATOR) { |
| pr_err("%s: Array Size out of bound\n", __func__); |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(pdata->regulator); i++) { |
| if (pdata->regulator[i].name) { |
| wcd9xxx->supplies[i].supply = pdata->regulator[i].name; |
| wcd9xxx->num_of_supplies++; |
| } |
| } |
| |
| ret = regulator_bulk_get(wcd9xxx->dev, wcd9xxx->num_of_supplies, |
| wcd9xxx->supplies); |
| if (ret != 0) { |
| dev_err(wcd9xxx->dev, "Failed to get supplies: err = %d\n", |
| ret); |
| goto err_supplies; |
| } |
| |
| for (i = 0; i < wcd9xxx->num_of_supplies; i++) { |
| if (regulator_count_voltages(wcd9xxx->supplies[i].consumer) <= |
| 0) |
| continue; |
| ret = regulator_set_voltage(wcd9xxx->supplies[i].consumer, |
| pdata->regulator[i].min_uV, |
| pdata->regulator[i].max_uV); |
| if (ret) { |
| pr_err("%s: Setting regulator voltage failed for regulator %s err = %d\n", |
| __func__, |
| wcd9xxx->supplies[i].supply, ret); |
| goto err_get; |
| } |
| |
| ret = regulator_set_optimum_mode(wcd9xxx->supplies[i].consumer, |
| pdata->regulator[i].optimum_uA); |
| if (ret < 0) { |
| pr_err("%s: Setting regulator optimum mode failed for regulator %s err = %d\n", |
| __func__, |
| wcd9xxx->supplies[i].supply, ret); |
| goto err_get; |
| } else { |
| ret = 0; |
| } |
| } |
| |
| return ret; |
| |
| err_get: |
| regulator_bulk_free(wcd9xxx->num_of_supplies, wcd9xxx->supplies); |
| err_supplies: |
| kfree(wcd9xxx->supplies); |
| err: |
| return ret; |
| } |
| |
| static int wcd9xxx_enable_static_supplies(struct wcd9xxx *wcd9xxx, |
| struct wcd9xxx_pdata *pdata) |
| { |
| int i; |
| int ret = 0; |
| |
| for (i = 0; i < wcd9xxx->num_of_supplies; i++) { |
| if (pdata->regulator[i].ondemand) |
| continue; |
| ret = regulator_enable(wcd9xxx->supplies[i].consumer); |
| if (ret) { |
| pr_err("%s: Failed to enable %s\n", __func__, |
| wcd9xxx->supplies[i].supply); |
| break; |
| } else { |
| pr_debug("%s: Enabled regulator %s\n", __func__, |
| wcd9xxx->supplies[i].supply); |
| } |
| } |
| |
| while (ret && --i) |
| if (!pdata->regulator[i].ondemand) |
| regulator_disable(wcd9xxx->supplies[i].consumer); |
| |
| return ret; |
| } |
| |
| static void wcd9xxx_disable_supplies(struct wcd9xxx *wcd9xxx, |
| struct wcd9xxx_pdata *pdata) |
| { |
| int i; |
| int rc; |
| |
| for (i = 0; i < wcd9xxx->num_of_supplies; i++) { |
| if (pdata->regulator[i].ondemand) |
| continue; |
| rc = regulator_disable(wcd9xxx->supplies[i].consumer); |
| if (rc) { |
| pr_err("%s: Failed to disable %s\n", __func__, |
| wcd9xxx->supplies[i].supply); |
| } else { |
| pr_debug("%s: Disabled regulator %s\n", __func__, |
| wcd9xxx->supplies[i].supply); |
| } |
| } |
| } |
| |
| static void wcd9xxx_release_supplies(struct wcd9xxx *wcd9xxx, |
| struct wcd9xxx_pdata *pdata) |
| { |
| int i; |
| |
| wcd9xxx_disable_supplies(wcd9xxx, pdata); |
| |
| for (i = 0; i < wcd9xxx->num_of_supplies; i++) { |
| if (regulator_count_voltages(wcd9xxx->supplies[i].consumer) <= |
| 0) |
| continue; |
| regulator_set_voltage(wcd9xxx->supplies[i].consumer, 0, |
| pdata->regulator[i].max_uV); |
| regulator_set_optimum_mode(wcd9xxx->supplies[i].consumer, 0); |
| } |
| regulator_bulk_free(wcd9xxx->num_of_supplies, wcd9xxx->supplies); |
| kfree(wcd9xxx->supplies); |
| } |
| |
| static struct wcd9xxx_i2c *wcd9xxx_i2c_get_device_info(struct wcd9xxx *wcd9xxx, |
| u16 reg) |
| { |
| u16 mask = 0x0f00; |
| int value = 0; |
| struct wcd9xxx_i2c *wcd9xxx_i2c = NULL; |
| |
| if (wcd9xxx->type == WCD9335) { |
| wcd9xxx_i2c = &wcd9xxx_modules[0]; |
| } else { |
| value = ((reg & mask) >> 8) & 0x000f; |
| switch (value) { |
| case 0: |
| wcd9xxx_i2c = &wcd9xxx_modules[0]; |
| break; |
| case 1: |
| wcd9xxx_i2c = &wcd9xxx_modules[1]; |
| break; |
| case 2: |
| wcd9xxx_i2c = &wcd9xxx_modules[2]; |
| break; |
| case 3: |
| wcd9xxx_i2c = &wcd9xxx_modules[3]; |
| break; |
| |
| default: |
| break; |
| } |
| } |
| return wcd9xxx_i2c; |
| } |
| |
| static int wcd9xxx_i2c_write_device(struct wcd9xxx *wcd9xxx, u16 reg, u8 *value, |
| u32 bytes) |
| { |
| |
| struct i2c_msg *msg; |
| int ret = 0; |
| u8 reg_addr = 0; |
| u8 data[bytes + 1]; |
| struct wcd9xxx_i2c *wcd9xxx_i2c; |
| |
| wcd9xxx_i2c = wcd9xxx_i2c_get_device_info(wcd9xxx, reg); |
| if (wcd9xxx_i2c == NULL || wcd9xxx_i2c->client == NULL) { |
| pr_err("failed to get device info\n"); |
| return -ENODEV; |
| } |
| reg_addr = (u8)reg; |
| msg = &wcd9xxx_i2c->xfer_msg[0]; |
| msg->addr = wcd9xxx_i2c->client->addr; |
| msg->len = bytes + 1; |
| msg->flags = 0; |
| data[0] = reg; |
| data[1] = *value; |
| msg->buf = data; |
| ret = i2c_transfer(wcd9xxx_i2c->client->adapter, |
| wcd9xxx_i2c->xfer_msg, 1); |
| /* Try again if the write fails */ |
| if (ret != 1) { |
| ret = i2c_transfer(wcd9xxx_i2c->client->adapter, |
| wcd9xxx_i2c->xfer_msg, 1); |
| if (ret != 1) { |
| pr_err("failed to write the device\n"); |
| return ret; |
| } |
| } |
| pr_debug("write sucess register = %x val = %x\n", reg, data[1]); |
| return 0; |
| } |
| |
| |
| static int wcd9xxx_i2c_read_device(struct wcd9xxx *wcd9xxx, unsigned short reg, |
| int bytes, unsigned char *dest) |
| { |
| struct i2c_msg *msg; |
| int ret = 0; |
| u8 reg_addr = 0; |
| struct wcd9xxx_i2c *wcd9xxx_i2c; |
| u8 i = 0; |
| |
| wcd9xxx_i2c = wcd9xxx_i2c_get_device_info(wcd9xxx, reg); |
| if (wcd9xxx_i2c == NULL || wcd9xxx_i2c->client == NULL) { |
| pr_err("failed to get device info\n"); |
| return -ENODEV; |
| } |
| for (i = 0; i < bytes; i++) { |
| reg_addr = (u8)reg++; |
| msg = &wcd9xxx_i2c->xfer_msg[0]; |
| msg->addr = wcd9xxx_i2c->client->addr; |
| msg->len = 1; |
| msg->flags = 0; |
| msg->buf = ®_addr; |
| |
| msg = &wcd9xxx_i2c->xfer_msg[1]; |
| msg->addr = wcd9xxx_i2c->client->addr; |
| msg->len = 1; |
| msg->flags = I2C_M_RD; |
| msg->buf = dest++; |
| ret = i2c_transfer(wcd9xxx_i2c->client->adapter, |
| wcd9xxx_i2c->xfer_msg, 2); |
| |
| /* Try again if read fails first time */ |
| if (ret != 2) { |
| ret = i2c_transfer(wcd9xxx_i2c->client->adapter, |
| wcd9xxx_i2c->xfer_msg, 2); |
| if (ret != 2) { |
| pr_err("failed to read wcd9xxx register\n"); |
| return ret; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| int wcd9xxx_i2c_read(struct wcd9xxx *wcd9xxx, unsigned short reg, |
| int bytes, void *dest, bool interface_reg) |
| { |
| return wcd9xxx_i2c_read_device(wcd9xxx, reg, bytes, dest); |
| } |
| |
| int wcd9xxx_i2c_write(struct wcd9xxx *wcd9xxx, unsigned short reg, |
| int bytes, void *src, bool interface_reg) |
| { |
| return wcd9xxx_i2c_write_device(wcd9xxx, reg, src, bytes); |
| } |
| |
| static int wcd9xxx_i2c_get_client_index(struct i2c_client *client, |
| int *wcd9xx_index) |
| { |
| int ret = 0; |
| switch (client->addr) { |
| case WCD9XXX_I2C_TOP_SLAVE_ADDR: |
| *wcd9xx_index = WCD9XXX_I2C_TOP_LEVEL; |
| break; |
| case WCD9XXX_ANALOG_I2C_SLAVE_ADDR: |
| *wcd9xx_index = WCD9XXX_I2C_ANALOG; |
| break; |
| case WCD9XXX_DIGITAL1_I2C_SLAVE_ADDR: |
| *wcd9xx_index = WCD9XXX_I2C_DIGITAL_1; |
| break; |
| case WCD9XXX_DIGITAL2_I2C_SLAVE_ADDR: |
| *wcd9xx_index = WCD9XXX_I2C_DIGITAL_2; |
| break; |
| default: |
| ret = -EINVAL; |
| break; |
| } |
| return ret; |
| } |
| |
| static int wcd9xxx_i2c_probe(struct i2c_client *client, |
| const struct i2c_device_id *id) |
| { |
| struct wcd9xxx *wcd9xxx = NULL; |
| struct wcd9xxx_pdata *pdata = NULL; |
| int val = 0; |
| int ret = 0; |
| int wcd9xx_index = 0; |
| struct device *dev; |
| int intf_type; |
| const struct of_device_id *of_id; |
| |
| intf_type = wcd9xxx_get_intf_type(); |
| |
| pr_debug("%s: interface status %d\n", __func__, intf_type); |
| if (intf_type == WCD9XXX_INTERFACE_TYPE_SLIMBUS) { |
| dev_dbg(&client->dev, "%s:Codec is detected in slimbus mode\n", |
| __func__); |
| return -ENODEV; |
| } else if (intf_type == WCD9XXX_INTERFACE_TYPE_I2C) { |
| ret = wcd9xxx_i2c_get_client_index(client, &wcd9xx_index); |
| if (ret != 0) |
| dev_err(&client->dev, "%s: I2C set codec I2C\n" |
| "client failed\n", __func__); |
| else { |
| dev_err(&client->dev, "%s:probe for other slaves\n" |
| "devices of codec I2C slave Addr = %x\n", |
| __func__, client->addr); |
| wcd9xxx_modules[wcd9xx_index].client = client; |
| } |
| return ret; |
| } else if (intf_type == WCD9XXX_INTERFACE_TYPE_PROBING) { |
| dev = &client->dev; |
| if (client->dev.of_node) { |
| dev_dbg(&client->dev, "%s:Platform data\n" |
| "from device tree\n", __func__); |
| pdata = wcd9xxx_populate_dt_pdata(&client->dev); |
| if (!pdata) { |
| dev_err(&client->dev, |
| "%s: Fail to obtain pdata from device tree\n", |
| __func__); |
| ret = -EINVAL; |
| goto fail; |
| } |
| client->dev.platform_data = pdata; |
| } else { |
| dev_dbg(&client->dev, "%s:Platform data from\n" |
| "board file\n", __func__); |
| pdata = client->dev.platform_data; |
| } |
| wcd9xxx = kzalloc(sizeof(struct wcd9xxx), GFP_KERNEL); |
| if (wcd9xxx == NULL) { |
| pr_err("%s: error, allocation failed\n", __func__); |
| ret = -ENOMEM; |
| goto fail; |
| } |
| |
| if (!pdata) { |
| dev_dbg(&client->dev, "no platform data?\n"); |
| ret = -EINVAL; |
| goto fail; |
| } |
| wcd9xxx->type = WCD9XXX; |
| if (client->dev.of_node) { |
| of_id = of_match_device(wcd9xxx_of_match, &client->dev); |
| if (of_id) { |
| wcd9xxx->type = *((int *)of_id->data); |
| dev_info(&client->dev, "%s: codec type is %d\n", |
| __func__, wcd9xxx->type); |
| } |
| } else { |
| dev_info(&client->dev, "%s: dev.of_node is NULL, default to WCD9XXX\n", |
| __func__); |
| wcd9xxx->type = WCD9XXX; |
| } |
| wcd9xxx_set_codec_specific_param(wcd9xxx); |
| if (wcd9xxx->using_regmap) { |
| wcd9xxx->regmap = devm_regmap_init_i2c_bus(client, |
| &wcd9xxx_i2c_base_regmap_config); |
| if (IS_ERR(wcd9xxx->regmap)) { |
| ret = PTR_ERR(wcd9xxx->regmap); |
| dev_err(&client->dev, "%s: Failed to allocate register map: %d\n", |
| __func__, ret); |
| goto err_codec; |
| } |
| } |
| wcd9xxx->reset_gpio = pdata->reset_gpio; |
| wcd9xxx->wcd_rst_np = pdata->wcd_rst_np; |
| |
| if (!wcd9xxx->wcd_rst_np) { |
| ret = extcodec_get_pinctrl(&client->dev); |
| if (ret < 0) |
| pdata->use_pinctrl = false; |
| else |
| pdata->use_pinctrl = true; |
| } else { |
| pdata->use_pinctrl = true; |
| } |
| |
| if (i2c_check_functionality(client->adapter, |
| I2C_FUNC_I2C) == 0) { |
| dev_dbg(&client->dev, "can't talk I2C?\n"); |
| ret = -EIO; |
| goto fail; |
| } |
| dev_set_drvdata(&client->dev, wcd9xxx); |
| wcd9xxx->dev = &client->dev; |
| wcd9xxx->dev_up = true; |
| if (client->dev.of_node) |
| wcd9xxx->mclk_rate = pdata->mclk_rate; |
| |
| ret = wcd9xxx_init_supplies(wcd9xxx, pdata); |
| if (ret) { |
| pr_err("%s: Fail to enable Codec supplies\n", |
| __func__); |
| goto err_codec; |
| } |
| |
| ret = wcd9xxx_enable_static_supplies(wcd9xxx, pdata); |
| if (ret) { |
| pr_err("%s: Fail to enable Codec pre-reset supplies\n", |
| __func__); |
| goto err_codec; |
| } |
| /* For WCD9335, it takes about 600us for the Vout_A and |
| * Vout_D to be ready after BUCK_SIDO is powered up\ |
| * SYS_RST_N shouldn't be pulled high during this time |
| */ |
| if (wcd9xxx->type == WCD9335) |
| usleep_range(600, 650); |
| else |
| usleep_range(5, 10); |
| |
| ret = wcd9xxx_reset(wcd9xxx); |
| if (ret) { |
| pr_err("%s: Resetting Codec failed\n", __func__); |
| goto err_supplies; |
| } |
| |
| ret = wcd9xxx_i2c_get_client_index(client, &wcd9xx_index); |
| if (ret != 0) { |
| pr_err("%s:Set codec I2C client failed\n", __func__); |
| goto err_supplies; |
| } |
| |
| wcd9xxx_modules[wcd9xx_index].client = client; |
| wcd9xxx->read_dev = wcd9xxx_i2c_read; |
| wcd9xxx->write_dev = wcd9xxx_i2c_write; |
| if (!wcd9xxx->dev->of_node) |
| wcd9xxx_initialize_irq(&wcd9xxx->core_res, |
| pdata->irq, pdata->irq_base); |
| |
| ret = wcd9xxx_device_init(wcd9xxx); |
| if (ret) { |
| pr_err("%s: error, initializing device failed\n", |
| __func__); |
| goto err_device_init; |
| } |
| |
| ret = wcd9xxx_read(wcd9xxx, WCD9XXX_A_CHIP_STATUS, 1, &val, 0); |
| if (ret < 0) |
| pr_err("%s: failed to read the wcd9xxx status (%d)\n", |
| __func__, ret); |
| if (val != wcd9xxx->codec_type->i2c_chip_status) |
| pr_err("%s: unknown chip status 0x%x\n", __func__, val); |
| |
| wcd9xxx_set_intf_type(WCD9XXX_INTERFACE_TYPE_I2C); |
| |
| return ret; |
| } else |
| pr_err("%s: I2C probe in wrong state\n", __func__); |
| |
| |
| err_device_init: |
| wcd9xxx_free_reset(wcd9xxx); |
| err_supplies: |
| wcd9xxx_release_supplies(wcd9xxx, pdata); |
| err_codec: |
| kfree(wcd9xxx); |
| dev_set_drvdata(&client->dev, NULL); |
| fail: |
| return ret; |
| } |
| |
| static int wcd9xxx_i2c_remove(struct i2c_client *client) |
| { |
| struct wcd9xxx *wcd9xxx; |
| struct wcd9xxx_pdata *pdata = client->dev.platform_data; |
| pr_debug("exit\n"); |
| wcd9xxx = dev_get_drvdata(&client->dev); |
| wcd9xxx_release_supplies(wcd9xxx, pdata); |
| wcd9xxx_device_exit(wcd9xxx); |
| dev_set_drvdata(&client->dev, NULL); |
| return 0; |
| } |
| |
| static int wcd9xxx_dt_parse_vreg_info(struct device *dev, |
| struct wcd9xxx_regulator *vreg, |
| const char *vreg_name, |
| bool ondemand) |
| { |
| int len, ret = 0; |
| const __be32 *prop; |
| char prop_name[CODEC_DT_MAX_PROP_SIZE]; |
| struct device_node *regnode = NULL; |
| u32 prop_val; |
| |
| snprintf(prop_name, CODEC_DT_MAX_PROP_SIZE, "%s-supply", |
| vreg_name); |
| regnode = of_parse_phandle(dev->of_node, prop_name, 0); |
| |
| if (!regnode) { |
| dev_err(dev, "Looking up %s property in node %s failed", |
| prop_name, dev->of_node->full_name); |
| return -ENODEV; |
| } |
| vreg->name = vreg_name; |
| vreg->ondemand = ondemand; |
| |
| snprintf(prop_name, CODEC_DT_MAX_PROP_SIZE, |
| "qcom,%s-voltage", vreg_name); |
| prop = of_get_property(dev->of_node, prop_name, &len); |
| |
| if (!prop || (len != (2 * sizeof(__be32)))) { |
| dev_err(dev, "%s %s property\n", |
| prop ? "invalid format" : "no", prop_name); |
| return -EINVAL; |
| } else { |
| vreg->min_uV = be32_to_cpup(&prop[0]); |
| vreg->max_uV = be32_to_cpup(&prop[1]); |
| } |
| |
| snprintf(prop_name, CODEC_DT_MAX_PROP_SIZE, |
| "qcom,%s-current", vreg_name); |
| |
| ret = of_property_read_u32(dev->of_node, prop_name, &prop_val); |
| if (ret) { |
| dev_err(dev, "Looking up %s property in node %s failed", |
| prop_name, dev->of_node->full_name); |
| return -EFAULT; |
| } |
| vreg->optimum_uA = prop_val; |
| |
| dev_info(dev, "%s: vol=[%d %d]uV, curr=[%d]uA, ond %d\n", vreg->name, |
| vreg->min_uV, vreg->max_uV, vreg->optimum_uA, vreg->ondemand); |
| return 0; |
| } |
| |
| static int wcd9xxx_read_of_property_u32(struct device *dev, |
| const char *name, u32 *val) |
| { |
| int ret = 0; |
| ret = of_property_read_u32(dev->of_node, name, val); |
| if (ret) |
| dev_err(dev, "Looking up %s property in node %s failed", |
| name, dev->of_node->full_name); |
| return ret; |
| } |
| |
| static int wcd9xxx_dt_parse_micbias_info(struct device *dev, |
| struct wcd9xxx_micbias_setting *micbias) |
| { |
| u32 prop_val; |
| |
| if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias-ldoh-v", |
| &prop_val))) |
| micbias->ldoh_v = (u8)prop_val; |
| |
| if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias-cfilt1-mv", |
| &prop_val))) |
| micbias->cfilt1_mv = prop_val; |
| else if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias1-mv", |
| &prop_val))) |
| micbias->micb1_mv = prop_val; |
| |
| if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias-cfilt2-mv", |
| &prop_val))) |
| micbias->cfilt2_mv = prop_val; |
| else if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias2-mv", |
| &prop_val))) |
| micbias->micb2_mv = prop_val; |
| |
| if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias-cfilt3-mv", |
| &prop_val))) |
| micbias->cfilt3_mv = prop_val; |
| else if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias3-mv", |
| &prop_val))) |
| micbias->micb3_mv = prop_val; |
| |
| if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias4-mv", |
| &prop_val))) |
| micbias->micb4_mv = prop_val; |
| |
| /* Read micbias values for codec. Does not matter even if a few |
| * micbias values are not defined in the Device Tree. Codec will |
| * anyway not use those values |
| */ |
| if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias1-cfilt-sel", |
| &prop_val))) |
| micbias->bias1_cfilt_sel = (u8)prop_val; |
| |
| if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias2-cfilt-sel", |
| &prop_val))) |
| micbias->bias2_cfilt_sel = (u8)prop_val; |
| |
| if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias3-cfilt-sel", |
| &prop_val))) |
| micbias->bias3_cfilt_sel = (u8)prop_val; |
| |
| if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias4-cfilt-sel", |
| &prop_val))) |
| micbias->bias4_cfilt_sel = (u8)prop_val; |
| |
| /* micbias external cap */ |
| micbias->bias1_cap_mode = |
| (of_property_read_bool(dev->of_node, "qcom,cdc-micbias1-ext-cap") ? |
| MICBIAS_EXT_BYP_CAP : MICBIAS_NO_EXT_BYP_CAP); |
| micbias->bias2_cap_mode = |
| (of_property_read_bool(dev->of_node, "qcom,cdc-micbias2-ext-cap") ? |
| MICBIAS_EXT_BYP_CAP : MICBIAS_NO_EXT_BYP_CAP); |
| micbias->bias3_cap_mode = |
| (of_property_read_bool(dev->of_node, "qcom,cdc-micbias3-ext-cap") ? |
| MICBIAS_EXT_BYP_CAP : MICBIAS_NO_EXT_BYP_CAP); |
| micbias->bias4_cap_mode = |
| (of_property_read_bool(dev->of_node, "qcom,cdc-micbias4-ext-cap") ? |
| MICBIAS_EXT_BYP_CAP : MICBIAS_NO_EXT_BYP_CAP); |
| |
| micbias->bias2_is_headset_only = |
| of_property_read_bool(dev->of_node, |
| "qcom,cdc-micbias2-headset-only"); |
| |
| dev_dbg(dev, "ldoh_v %u cfilt1_mv %u cfilt2_mv %u cfilt3_mv %u", |
| (u32)micbias->ldoh_v, (u32)micbias->cfilt1_mv, |
| (u32)micbias->cfilt2_mv, (u32)micbias->cfilt3_mv); |
| |
| dev_dbg(dev, "micb1_mv %u micb2_mv %u micb3_mv %u micb4_mv %u", |
| micbias->micb1_mv, micbias->micb2_mv, |
| micbias->micb3_mv, micbias->micb4_mv); |
| |
| dev_dbg(dev, "bias1_cfilt_sel %u bias2_cfilt_sel %u\n", |
| (u32)micbias->bias1_cfilt_sel, (u32)micbias->bias2_cfilt_sel); |
| |
| dev_dbg(dev, "bias3_cfilt_sel %u bias4_cfilt_sel %u\n", |
| (u32)micbias->bias3_cfilt_sel, (u32)micbias->bias4_cfilt_sel); |
| |
| dev_dbg(dev, "bias1_ext_cap %d bias2_ext_cap %d\n", |
| micbias->bias1_cap_mode, micbias->bias2_cap_mode); |
| dev_dbg(dev, "bias3_ext_cap %d bias4_ext_cap %d\n", |
| micbias->bias3_cap_mode, micbias->bias4_cap_mode); |
| |
| dev_dbg(dev, "bias2_is_headset_only %d\n", |
| micbias->bias2_is_headset_only); |
| return 0; |
| } |
| |
| static int wcd9xxx_dt_parse_slim_interface_dev_info(struct device *dev, |
| struct slim_device *slim_ifd) |
| { |
| int ret = 0; |
| struct property *prop; |
| |
| ret = of_property_read_string(dev->of_node, "qcom,cdc-slim-ifd", |
| &slim_ifd->name); |
| if (ret) { |
| dev_err(dev, "Looking up %s property in node %s failed", |
| "qcom,cdc-slim-ifd-dev", dev->of_node->full_name); |
| return -ENODEV; |
| } |
| prop = of_find_property(dev->of_node, |
| "qcom,cdc-slim-ifd-elemental-addr", NULL); |
| if (!prop) { |
| dev_err(dev, "Looking up %s property in node %s failed", |
| "qcom,cdc-slim-ifd-elemental-addr", |
| dev->of_node->full_name); |
| return -ENODEV; |
| } else if (prop->length != 6) { |
| dev_err(dev, "invalid codec slim ifd addr. addr length = %d\n", |
| prop->length); |
| return -ENODEV; |
| } |
| memcpy(slim_ifd->e_addr, prop->value, 6); |
| |
| return 0; |
| } |
| |
| static int wcd9xxx_process_supplies(struct device *dev, |
| struct wcd9xxx_pdata *pdata, const char *supply_list, |
| int supply_cnt, bool is_ondemand, int index) |
| { |
| int idx, ret = 0; |
| const char *name; |
| |
| if (supply_cnt == 0) { |
| dev_dbg(dev, "%s: no supplies defined for %s\n", __func__, |
| supply_list); |
| return 0; |
| } |
| |
| for (idx = 0; idx < supply_cnt; idx++) { |
| ret = of_property_read_string_index(dev->of_node, |
| supply_list, idx, |
| &name); |
| if (ret) { |
| dev_err(dev, "%s: of read string %s idx %d error %d\n", |
| __func__, supply_list, idx, ret); |
| goto err; |
| } |
| |
| dev_dbg(dev, "%s: Found cdc supply %s as part of %s\n", |
| __func__, name, supply_list); |
| ret = wcd9xxx_dt_parse_vreg_info(dev, |
| &pdata->regulator[index + idx], |
| name, is_ondemand); |
| if (ret) |
| goto err; |
| } |
| |
| return 0; |
| |
| err: |
| return ret; |
| |
| } |
| |
| /* |
| * wcd9xxx_validate_dmic_sample_rate: |
| * Given the dmic_sample_rate and mclk rate, validate the |
| * dmic_sample_rate. If dmic rate is found to be invalid, |
| * assign the dmic rate as undefined, so individual codec |
| * drivers can use thier own defaults |
| * @dev: the device for which the dmic is to be configured |
| * @dmic_sample_rate: The input dmic_sample_rate |
| * @mclk_rate: The input codec mclk rate |
| * @dmic_rate_type: String to indicate the type of dmic sample |
| * rate, used for debug/error logging. |
| */ |
| static u32 wcd9xxx_validate_dmic_sample_rate(struct device *dev, |
| u32 dmic_sample_rate, u32 mclk_rate, |
| const char *dmic_rate_type) |
| { |
| u32 div_factor; |
| |
| if (dmic_sample_rate == WCD9XXX_DMIC_SAMPLE_RATE_UNDEFINED || |
| mclk_rate % dmic_sample_rate != 0) |
| goto undefined_rate; |
| |
| div_factor = mclk_rate / dmic_sample_rate; |
| |
| switch (div_factor) { |
| case 2: |
| case 3: |
| case 4: |
| case 16: |
| /* Valid dmic DIV factors */ |
| dev_dbg(dev, |
| "%s: DMIC_DIV = %u, mclk_rate = %u\n", |
| __func__, div_factor, mclk_rate); |
| break; |
| case 6: |
| /* DIV 6 is valid only for 12.288 MCLK */ |
| if (mclk_rate != WCD9XXX_MCLK_CLK_12P288MHZ) |
| goto undefined_rate; |
| break; |
| default: |
| /* Any other DIV factor is invalid */ |
| goto undefined_rate; |
| } |
| |
| return dmic_sample_rate; |
| |
| undefined_rate: |
| dev_info(dev, |
| "%s: Invalid %s = %d, for mclk %d\n", |
| __func__, |
| dmic_rate_type, |
| dmic_sample_rate, mclk_rate); |
| dmic_sample_rate = WCD9XXX_DMIC_SAMPLE_RATE_UNDEFINED; |
| return dmic_sample_rate; |
| } |
| |
| static struct wcd9xxx_pdata *wcd9xxx_populate_dt_pdata(struct device *dev) |
| { |
| struct wcd9xxx_pdata *pdata; |
| int ret, static_cnt, ond_cnt, cp_supplies_cnt; |
| u32 mclk_rate = 0; |
| u32 dmic_sample_rate = 0; |
| u32 mad_dmic_sample_rate = 0; |
| u32 dmic_clk_drive; |
| const char *static_prop_name = "qcom,cdc-static-supplies"; |
| const char *ond_prop_name = "qcom,cdc-on-demand-supplies"; |
| const char *cp_supplies_name = "qcom,cdc-cp-supplies"; |
| const char *cdc_name; |
| |
| pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); |
| if (!pdata) { |
| dev_err(dev, "could not allocate memory for platform data\n"); |
| return NULL; |
| } |
| |
| static_cnt = of_property_count_strings(dev->of_node, static_prop_name); |
| if (IS_ERR_VALUE(static_cnt)) { |
| dev_err(dev, "%s: Failed to get static supplies %d\n", __func__, |
| static_cnt); |
| goto err; |
| } |
| |
| /* On-demand supply list is an optional property */ |
| ond_cnt = of_property_count_strings(dev->of_node, ond_prop_name); |
| if (IS_ERR_VALUE(ond_cnt)) |
| ond_cnt = 0; |
| |
| /* cp-supplies list is an optional property */ |
| cp_supplies_cnt = of_property_count_strings(dev->of_node, |
| cp_supplies_name); |
| if (IS_ERR_VALUE(cp_supplies_cnt)) |
| cp_supplies_cnt = 0; |
| |
| BUG_ON(static_cnt <= 0 || ond_cnt < 0 || cp_supplies_cnt < 0); |
| if ((static_cnt + ond_cnt + cp_supplies_cnt) |
| > ARRAY_SIZE(pdata->regulator)) { |
| dev_err(dev, "%s: Num of supplies %u > max supported %zu\n", |
| __func__, static_cnt, ARRAY_SIZE(pdata->regulator)); |
| goto err; |
| } |
| |
| ret = wcd9xxx_process_supplies(dev, pdata, static_prop_name, |
| static_cnt, STATIC_REGULATOR, 0); |
| if (ret) |
| goto err; |
| |
| ret = wcd9xxx_process_supplies(dev, pdata, ond_prop_name, |
| ond_cnt, ONDEMAND_REGULATOR, static_cnt); |
| if (ret) |
| goto err; |
| |
| ret = wcd9xxx_process_supplies(dev, pdata, cp_supplies_name, |
| cp_supplies_cnt, ONDEMAND_REGULATOR, |
| static_cnt + ond_cnt); |
| if (ret) |
| goto err; |
| |
| ret = wcd9xxx_dt_parse_micbias_info(dev, &pdata->micbias); |
| if (ret) |
| goto err; |
| |
| pdata->wcd_rst_np = of_parse_phandle(dev->of_node, |
| "qcom,wcd-rst-gpio-node", 0); |
| if (!pdata->wcd_rst_np) { |
| pdata->reset_gpio = of_get_named_gpio(dev->of_node, |
| "qcom,cdc-reset-gpio", 0); |
| if (pdata->reset_gpio < 0) { |
| dev_err(dev, "Looking up %s property in node %s failed %d\n", |
| "qcom, cdc-reset-gpio", |
| dev->of_node->full_name, pdata->reset_gpio); |
| goto err; |
| } |
| dev_dbg(dev, "%s: reset gpio %d", __func__, pdata->reset_gpio); |
| } |
| ret = of_property_read_u32(dev->of_node, |
| "qcom,cdc-mclk-clk-rate", |
| &mclk_rate); |
| if (ret) { |
| dev_err(dev, "Looking up %s property in\n" |
| "node %s failed", |
| "qcom,cdc-mclk-clk-rate", |
| dev->of_node->full_name); |
| devm_kfree(dev, pdata); |
| ret = -EINVAL; |
| goto err; |
| } |
| pdata->mclk_rate = mclk_rate; |
| |
| if (pdata->mclk_rate != WCD9XXX_MCLK_CLK_9P6HZ && |
| pdata->mclk_rate != WCD9XXX_MCLK_CLK_12P288MHZ) { |
| dev_err(dev, |
| "%s: Invalid mclk_rate = %u\n", |
| __func__, pdata->mclk_rate); |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| ret = of_property_read_u32(dev->of_node, |
| "qcom,cdc-dmic-sample-rate", |
| &dmic_sample_rate); |
| if (ret) { |
| dev_err(dev, "Looking up %s property in node %s failed", |
| "qcom,cdc-dmic-sample-rate", |
| dev->of_node->full_name); |
| dmic_sample_rate = WCD9XXX_DMIC_SAMPLE_RATE_UNDEFINED; |
| } |
| pdata->dmic_sample_rate = |
| wcd9xxx_validate_dmic_sample_rate(dev, |
| dmic_sample_rate, |
| pdata->mclk_rate, |
| "audio_dmic_rate"); |
| |
| ret = of_property_read_u32(dev->of_node, |
| "qcom,cdc-mad-dmic-rate", |
| &mad_dmic_sample_rate); |
| if (ret) { |
| dev_err(dev, "Looking up %s property in node %s failed, err = %d", |
| "qcom,cdc-mad-dmic-rate", |
| dev->of_node->full_name, ret); |
| mad_dmic_sample_rate = WCD9XXX_DMIC_SAMPLE_RATE_UNDEFINED; |
| } |
| pdata->mad_dmic_sample_rate = |
| wcd9xxx_validate_dmic_sample_rate(dev, |
| mad_dmic_sample_rate, |
| pdata->mclk_rate, |
| "mad_dmic_rate"); |
| |
| pdata->dmic_clk_drv = WCD9XXX_DMIC_CLK_DRIVE_UNDEFINED; |
| ret = of_property_read_u32(dev->of_node, |
| "qcom,cdc-dmic-clk-drv-strength", |
| &dmic_clk_drive); |
| if (ret) |
| dev_err(dev, "Looking up %s property in node %s failed, err = %d", |
| "qcom,cdc-dmic-clk-drv-strength", |
| dev->of_node->full_name, ret); |
| else if (dmic_clk_drive != 2 && dmic_clk_drive != 4 && |
| dmic_clk_drive != 8 && dmic_clk_drive != 16) |
| dev_err(dev, "Invalid cdc-dmic-clk-drv-strength %d\n", |
| dmic_clk_drive); |
| else |
| pdata->dmic_clk_drv = dmic_clk_drive; |
| |
| ret = of_property_read_string(dev->of_node, |
| "qcom,cdc-variant", |
| &cdc_name); |
| if (ret) { |
| dev_dbg(dev, "Property %s not found in node %s\n", |
| "qcom,cdc-variant", |
| dev->of_node->full_name); |
| pdata->cdc_variant = WCD9XXX; |
| } else { |
| if (!strcmp(cdc_name, "WCD9330")) |
| pdata->cdc_variant = WCD9330; |
| else |
| pdata->cdc_variant = WCD9XXX; |
| } |
| |
| return pdata; |
| err: |
| devm_kfree(dev, pdata); |
| return NULL; |
| } |
| |
| static int wcd9xxx_slim_get_laddr(struct slim_device *sb, |
| const u8 *e_addr, u8 e_len, u8 *laddr) |
| { |
| int ret; |
| const unsigned long timeout = jiffies + |
| msecs_to_jiffies(SLIMBUS_PRESENT_TIMEOUT); |
| |
| do { |
| ret = slim_get_logical_addr(sb, e_addr, e_len, laddr); |
| if (!ret) |
| break; |
| /* Give SLIMBUS time to report present and be ready. */ |
| usleep_range(1000, 1100); |
| pr_debug_ratelimited("%s: retyring get logical addr\n", |
| __func__); |
| } while time_before(jiffies, timeout); |
| |
| return ret; |
| } |
| |
| static struct regmap_bus regmap_bus_config = { |
| .write = regmap_bus_write, |
| .gather_write = regmap_bus_gather_write, |
| .read = regmap_bus_read, |
| .reg_format_endian_default = REGMAP_ENDIAN_NATIVE, |
| .val_format_endian_default = REGMAP_ENDIAN_NATIVE, |
| }; |
| |
| static struct regmap *devm_regmap_init_slim(struct slim_device *slim, |
| const struct regmap_config *config) |
| { |
| return devm_regmap_init(&slim->dev, ®map_bus_config, |
| &slim->dev, config); |
| } |
| |
| static struct regmap *devm_regmap_init_i2c_bus(struct i2c_client *i2c, |
| const struct regmap_config *config) |
| { |
| |
| return devm_regmap_init(&i2c->dev, ®map_bus_config, |
| &i2c->dev, config); |
| } |
| |
| static void wcd9xxx_set_codec_specific_param(struct wcd9xxx *wcd9xxx) |
| { |
| if (!wcd9xxx) { |
| pr_err("%s: wcd9xxx is NULL\n", __func__); |
| return; |
| } |
| |
| switch (wcd9xxx->type) { |
| case WCD9335: |
| case WCD9330: |
| wcd9xxx->using_regmap = true; |
| wcd9xxx->prev_pg_valid = false; |
| break; |
| default: |
| wcd9xxx->using_regmap = false; |
| break; |
| } |
| pr_debug("%s: Codec %s regmap\n", |
| __func__, (wcd9xxx->using_regmap ? "using" : "not using")); |
| |
| return; |
| } |
| |
| static int wcd9xxx_slim_probe(struct slim_device *slim) |
| { |
| struct wcd9xxx *wcd9xxx; |
| struct wcd9xxx_pdata *pdata; |
| int ret = 0; |
| int intf_type; |
| const struct of_device_id *of_id; |
| |
| intf_type = wcd9xxx_get_intf_type(); |
| |
| if (intf_type == WCD9XXX_INTERFACE_TYPE_I2C) { |
| dev_dbg(&slim->dev, "%s:Codec is detected in I2C mode\n", |
| __func__); |
| return -ENODEV; |
| } |
| if (slim->dev.of_node) { |
| dev_info(&slim->dev, "Platform data from device tree\n"); |
| pdata = wcd9xxx_populate_dt_pdata(&slim->dev); |
| if (!pdata) { |
| dev_err(&slim->dev, |
| "%s: Fail to obtain pdata from device tree\n", |
| __func__); |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| ret = wcd9xxx_dt_parse_slim_interface_dev_info(&slim->dev, |
| &pdata->slimbus_slave_device); |
| if (ret) { |
| dev_err(&slim->dev, "Error, parsing slim interface\n"); |
| devm_kfree(&slim->dev, pdata); |
| ret = -EINVAL; |
| goto err; |
| } |
| slim->dev.platform_data = pdata; |
| |
| } else { |
| dev_info(&slim->dev, "Platform data from board file\n"); |
| pdata = slim->dev.platform_data; |
| } |
| |
| if (!pdata) { |
| dev_err(&slim->dev, "Error, no platform data\n"); |
| ret = -EINVAL; |
| goto err; |
| } |
| |
| wcd9xxx = kzalloc(sizeof(struct wcd9xxx), GFP_KERNEL); |
| if (wcd9xxx == NULL) { |
| pr_err("%s: error, allocation failed\n", __func__); |
| ret = -ENOMEM; |
| goto err; |
| } |
| if (!slim->ctrl) { |
| pr_err("Error, no SLIMBUS control data\n"); |
| ret = -EINVAL; |
| goto err_codec; |
| } |
| wcd9xxx->type = WCD9XXX; |
| if (slim->dev.of_node) { |
| of_id = of_match_device(wcd9xxx_of_match, &slim->dev); |
| if (of_id) { |
| wcd9xxx->type = *((int *)of_id->data); |
| dev_info(&slim->dev, "%s: codec type is %d\n", |
| __func__, wcd9xxx->type); |
| } |
| } else { |
| dev_info(&slim->dev, "%s: dev.of_node is NULL, default to WCD9XXX\n", |
| __func__); |
| wcd9xxx->type = WCD9XXX; |
| } |
| wcd9xxx_set_codec_specific_param(wcd9xxx); |
| if (wcd9xxx->using_regmap) { |
| wcd9xxx->regmap = devm_regmap_init_slim(slim, |
| &wcd9xxx_base_regmap_config); |
| if (IS_ERR(wcd9xxx->regmap)) { |
| ret = PTR_ERR(wcd9xxx->regmap); |
| dev_err(&slim->dev, "%s: Failed to allocate register map: %d\n", |
| __func__, ret); |
| goto err_codec; |
| } |
| } |
| wcd9xxx->slim = slim; |
| slim_set_clientdata(slim, wcd9xxx); |
| wcd9xxx->reset_gpio = pdata->reset_gpio; |
| wcd9xxx->dev = &slim->dev; |
| wcd9xxx->mclk_rate = pdata->mclk_rate; |
| wcd9xxx->dev_up = true; |
| wcd9xxx->wcd_rst_np = pdata->wcd_rst_np; |
| |
| if (!wcd9xxx->wcd_rst_np) { |
| ret = extcodec_get_pinctrl(&slim->dev); |
| if (ret < 0) |
| pdata->use_pinctrl = false; |
| else |
| pdata->use_pinctrl = true; |
| } else { |
| pdata->use_pinctrl = true; |
| } |
| |
| ret = wcd9xxx_init_supplies(wcd9xxx, pdata); |
| if (ret) { |
| pr_err("%s: Fail to init Codec supplies %d\n", __func__, ret); |
| goto err_codec; |
| } |
| ret = wcd9xxx_enable_static_supplies(wcd9xxx, pdata); |
| if (ret) { |
| pr_err("%s: Fail to enable Codec pre-reset supplies\n", |
| __func__); |
| goto err_codec; |
| } |
| /* For WCD9335, it takes about 600us for the Vout_A and |
| * Vout_D to be ready after BUCK_SIDO is powered up. |
| * SYS_RST_N shouldn't be pulled high during this time |
| */ |
| if (wcd9xxx->type == WCD9335) |
| usleep_range(600, 650); |
| else |
| usleep_range(5, 10); |
| |
| ret = wcd9xxx_reset(wcd9xxx); |
| if (ret) { |
| pr_err("%s: Resetting Codec failed\n", __func__); |
| goto err_supplies; |
| } |
| |
| ret = wcd9xxx_slim_get_laddr(wcd9xxx->slim, wcd9xxx->slim->e_addr, |
| ARRAY_SIZE(wcd9xxx->slim->e_addr), |
| &wcd9xxx->slim->laddr); |
| if (ret) { |
| pr_err("%s: failed to get slimbus %s logical address: %d\n", |
| __func__, wcd9xxx->slim->name, ret); |
| goto err_reset; |
| } |
| wcd9xxx->read_dev = wcd9xxx_slim_read_device; |
| wcd9xxx->write_dev = wcd9xxx_slim_write_device; |
| wcd9xxx_pgd_la = wcd9xxx->slim->laddr; |
| wcd9xxx->slim_slave = &pdata->slimbus_slave_device; |
| if (!wcd9xxx->dev->of_node) |
| wcd9xxx_initialize_irq(&wcd9xxx->core_res, |
| pdata->irq, pdata->irq_base); |
| |
| ret = slim_add_device(slim->ctrl, wcd9xxx->slim_slave); |
| if (ret) { |
| pr_err("%s: error, adding SLIMBUS device failed\n", __func__); |
| goto err_reset; |
| } |
| |
| ret = wcd9xxx_slim_get_laddr(wcd9xxx->slim_slave, |
| wcd9xxx->slim_slave->e_addr, |
| ARRAY_SIZE(wcd9xxx->slim_slave->e_addr), |
| &wcd9xxx->slim_slave->laddr); |
| if (ret) { |
| pr_err("%s: failed to get slimbus %s logical address: %d\n", |
| __func__, wcd9xxx->slim->name, ret); |
| goto err_slim_add; |
| } |
| wcd9xxx_inf_la = wcd9xxx->slim_slave->laddr; |
| wcd9xxx_set_intf_type(WCD9XXX_INTERFACE_TYPE_SLIMBUS); |
| |
| ret = wcd9xxx_device_init(wcd9xxx); |
| if (ret) { |
| pr_err("%s: error, initializing device failed\n", __func__); |
| goto err_slim_add; |
| } |
| #ifdef CONFIG_DEBUG_FS |
| debugCodec = wcd9xxx; |
| |
| debugfs_wcd9xxx_dent = debugfs_create_dir |
| ("wcd9xxx_core", 0); |
| if (!IS_ERR(debugfs_wcd9xxx_dent)) { |
| debugfs_peek = debugfs_create_file("slimslave_peek", |
| S_IFREG | S_IRUGO, debugfs_wcd9xxx_dent, |
| (void *) "slimslave_peek", &codec_debug_ops); |
| |
| debugfs_poke = debugfs_create_file("slimslave_poke", |
| S_IFREG | S_IRUGO, debugfs_wcd9xxx_dent, |
| (void *) "slimslave_poke", &codec_debug_ops); |
| |
| debugfs_power_state = debugfs_create_file("power_state", |
| S_IFREG | S_IRUGO, debugfs_wcd9xxx_dent, |
| (void *) "power_state", &codec_debug_ops); |
| |
| debugfs_reg_dump = debugfs_create_file("slimslave_reg_dump", |
| S_IFREG | S_IRUGO, debugfs_wcd9xxx_dent, |
| (void *) "slimslave_reg_dump", &codec_debug_ops); |
| } |
| #endif |
| |
| return ret; |
| |
| err_slim_add: |
| slim_remove_device(wcd9xxx->slim_slave); |
| err_reset: |
| wcd9xxx_free_reset(wcd9xxx); |
| err_supplies: |
| wcd9xxx_release_supplies(wcd9xxx, pdata); |
| err_codec: |
| kfree(wcd9xxx); |
| slim_set_clientdata(slim, NULL); |
| err: |
| return ret; |
| } |
| static int wcd9xxx_slim_remove(struct slim_device *pdev) |
| { |
| struct wcd9xxx *wcd9xxx; |
| struct wcd9xxx_pdata *pdata = pdev->dev.platform_data; |
| |
| #ifdef CONFIG_DEBUG_FS |
| debugfs_remove_recursive(debugfs_wcd9xxx_dent); |
| #endif |
| wcd9xxx = slim_get_devicedata(pdev); |
| wcd9xxx_deinit_slimslave(wcd9xxx); |
| slim_remove_device(wcd9xxx->slim_slave); |
| wcd9xxx_release_supplies(wcd9xxx, pdata); |
| wcd9xxx_device_exit(wcd9xxx); |
| slim_set_clientdata(pdev, NULL); |
| return 0; |
| } |
| |
| static int wcd9xxx_device_up(struct wcd9xxx *wcd9xxx) |
| { |
| int ret = 0; |
| struct wcd9xxx_core_resource *wcd9xxx_res = &wcd9xxx->core_res; |
| |
| dev_info(wcd9xxx->dev, "%s: codec bring up\n", __func__); |
| wcd9xxx_bring_up(wcd9xxx); |
| ret = wcd9xxx_irq_init(wcd9xxx_res); |
| if (ret) { |
| pr_err("%s: wcd9xx_irq_init failed : %d\n", __func__, ret); |
| } else { |
| if (wcd9xxx->post_reset) |
| ret = wcd9xxx->post_reset(wcd9xxx); |
| } |
| return ret; |
| } |
| |
| static int wcd9xxx_slim_device_reset(struct slim_device *sldev) |
| { |
| int ret; |
| struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev); |
| if (!wcd9xxx) { |
| pr_err("%s: wcd9xxx is NULL\n", __func__); |
| return -EINVAL; |
| } |
| |
| dev_info(wcd9xxx->dev, "%s: device reset, dev_up = %d\n", |
| __func__, wcd9xxx->dev_up); |
| if (wcd9xxx->dev_up) |
| return 0; |
| |
| ret = wcd9xxx_reset(wcd9xxx); |
| if (ret) |
| dev_err(wcd9xxx->dev, "%s: Resetting Codec failed\n", __func__); |
| |
| return ret; |
| } |
| |
| static int wcd9xxx_slim_device_up(struct slim_device *sldev) |
| { |
| struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev); |
| if (!wcd9xxx) { |
| pr_err("%s: wcd9xxx is NULL\n", __func__); |
| return -EINVAL; |
| } |
| dev_info(wcd9xxx->dev, "%s: slim device up, dev_up = %d\n", |
| __func__, wcd9xxx->dev_up); |
| if (wcd9xxx->dev_up) |
| return 0; |
| |
| wcd9xxx->dev_up = true; |
| return wcd9xxx_device_up(wcd9xxx); |
| } |
| |
| static int wcd9xxx_slim_device_down(struct slim_device *sldev) |
| { |
| struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev); |
| |
| if (!wcd9xxx) { |
| pr_err("%s: wcd9xxx is NULL\n", __func__); |
| return -EINVAL; |
| } |
| |
| dev_info(wcd9xxx->dev, "%s: device down, dev_up = %d\n", |
| __func__, wcd9xxx->dev_up); |
| if (!wcd9xxx->dev_up) |
| return 0; |
| |
| wcd9xxx->dev_up = false; |
| wcd9xxx_irq_exit(&wcd9xxx->core_res); |
| if (wcd9xxx->dev_down) |
| wcd9xxx->dev_down(wcd9xxx); |
| return 0; |
| } |
| |
| static int wcd9xxx_slim_resume(struct slim_device *sldev) |
| { |
| struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev); |
| return wcd9xxx_core_res_resume(&wcd9xxx->core_res); |
| } |
| |
| static int wcd9xxx_i2c_resume(struct i2c_client *i2cdev) |
| { |
| struct wcd9xxx *wcd9xxx = dev_get_drvdata(&i2cdev->dev); |
| if (wcd9xxx) |
| return wcd9xxx_core_res_resume(&wcd9xxx->core_res); |
| else |
| return 0; |
| } |
| |
| static int wcd9xxx_slim_suspend(struct slim_device *sldev, pm_message_t pmesg) |
| { |
| struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev); |
| return wcd9xxx_core_res_suspend(&wcd9xxx->core_res, pmesg); |
| } |
| |
| static int wcd9xxx_i2c_suspend(struct i2c_client *i2cdev, pm_message_t pmesg) |
| { |
| struct wcd9xxx *wcd9xxx = dev_get_drvdata(&i2cdev->dev); |
| if (wcd9xxx) |
| return wcd9xxx_core_res_suspend(&wcd9xxx->core_res, pmesg); |
| else |
| return 0; |
| } |
| |
| static const struct slim_device_id sitar_slimtest_id[] = { |
| {"sitar-slim", 0}, |
| {} |
| }; |
| static struct slim_driver sitar_slim_driver = { |
| .driver = { |
| .name = "sitar-slim", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wcd9xxx_slim_probe, |
| .remove = wcd9xxx_slim_remove, |
| .id_table = sitar_slimtest_id, |
| .resume = wcd9xxx_slim_resume, |
| .suspend = wcd9xxx_slim_suspend, |
| }; |
| |
| static const struct slim_device_id sitar1p1_slimtest_id[] = { |
| {"sitar1p1-slim", 0}, |
| {} |
| }; |
| static struct slim_driver sitar1p1_slim_driver = { |
| .driver = { |
| .name = "sitar1p1-slim", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wcd9xxx_slim_probe, |
| .remove = wcd9xxx_slim_remove, |
| .id_table = sitar1p1_slimtest_id, |
| .resume = wcd9xxx_slim_resume, |
| .suspend = wcd9xxx_slim_suspend, |
| }; |
| |
| static const struct slim_device_id slimtest_id[] = { |
| {"tabla-slim", 0}, |
| {} |
| }; |
| |
| static struct slim_driver tabla_slim_driver = { |
| .driver = { |
| .name = "tabla-slim", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wcd9xxx_slim_probe, |
| .remove = wcd9xxx_slim_remove, |
| .id_table = slimtest_id, |
| .resume = wcd9xxx_slim_resume, |
| .suspend = wcd9xxx_slim_suspend, |
| }; |
| |
| static const struct slim_device_id slimtest2x_id[] = { |
| {"tabla2x-slim", 0}, |
| {} |
| }; |
| |
| static struct slim_driver tabla2x_slim_driver = { |
| .driver = { |
| .name = "tabla2x-slim", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wcd9xxx_slim_probe, |
| .remove = wcd9xxx_slim_remove, |
| .id_table = slimtest2x_id, |
| .resume = wcd9xxx_slim_resume, |
| .suspend = wcd9xxx_slim_suspend, |
| }; |
| |
| static const struct slim_device_id taiko_slimtest_id[] = { |
| {"taiko-slim-pgd", 0}, |
| {} |
| }; |
| |
| static struct slim_driver taiko_slim_driver = { |
| .driver = { |
| .name = "taiko-slim", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wcd9xxx_slim_probe, |
| .remove = wcd9xxx_slim_remove, |
| .id_table = taiko_slimtest_id, |
| .resume = wcd9xxx_slim_resume, |
| .suspend = wcd9xxx_slim_suspend, |
| .device_up = wcd9xxx_slim_device_up, |
| .reset_device = wcd9xxx_slim_device_reset, |
| .device_down = wcd9xxx_slim_device_down, |
| }; |
| |
| static const struct slim_device_id tapan_slimtest_id[] = { |
| {"tapan-slim-pgd", 0}, |
| {} |
| }; |
| |
| static struct slim_driver tapan_slim_driver = { |
| .driver = { |
| .name = "tapan-slim", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wcd9xxx_slim_probe, |
| .remove = wcd9xxx_slim_remove, |
| .id_table = tapan_slimtest_id, |
| .resume = wcd9xxx_slim_resume, |
| .suspend = wcd9xxx_slim_suspend, |
| .device_up = wcd9xxx_slim_device_up, |
| .reset_device = wcd9xxx_slim_device_reset, |
| .device_down = wcd9xxx_slim_device_down, |
| }; |
| |
| static const struct slim_device_id tomtom_slimtest_id[] = { |
| {"tomtom-slim-pgd", 0}, |
| {} |
| }; |
| |
| static const struct slim_device_id tasha_slimtest_id[] = { |
| {"tasha-slim-pgd", 0}, |
| {} |
| }; |
| |
| static struct slim_driver tomtom_slim_driver = { |
| .driver = { |
| .name = "tomtom-slim", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wcd9xxx_slim_probe, |
| .remove = wcd9xxx_slim_remove, |
| .id_table = tomtom_slimtest_id, |
| .resume = wcd9xxx_slim_resume, |
| .suspend = wcd9xxx_slim_suspend, |
| .device_up = wcd9xxx_slim_device_up, |
| .reset_device = wcd9xxx_slim_device_reset, |
| .device_down = wcd9xxx_slim_device_down, |
| }; |
| |
| static struct slim_driver wcd9335_slim_driver = { |
| .driver = { |
| .name = "wcd9335-slim", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wcd9xxx_slim_probe, |
| .remove = wcd9xxx_slim_remove, |
| .id_table = tasha_slimtest_id, |
| .resume = wcd9xxx_slim_resume, |
| .suspend = wcd9xxx_slim_suspend, |
| .device_up = wcd9xxx_slim_device_up, |
| .reset_device = wcd9xxx_slim_device_reset, |
| .device_down = wcd9xxx_slim_device_down, |
| }; |
| |
| static struct i2c_device_id wcd9xxx_id_table[] = { |
| {"wcd9xxx-i2c", WCD9XXX_I2C_TOP_LEVEL}, |
| {"wcd9xxx-i2c", WCD9XXX_I2C_ANALOG}, |
| {"wcd9xxx-i2c", WCD9XXX_I2C_DIGITAL_1}, |
| {"wcd9xxx-i2c", WCD9XXX_I2C_DIGITAL_2}, |
| {} |
| }; |
| |
| static struct i2c_device_id tasha_id_table[] = { |
| {"tasha-i2c-pgd", WCD9XXX_I2C_TOP_LEVEL}, |
| {} |
| }; |
| |
| static struct i2c_device_id tabla_id_table[] = { |
| {"tabla top level", WCD9XXX_I2C_TOP_LEVEL}, |
| {"tabla analog", WCD9XXX_I2C_ANALOG}, |
| {"tabla digital1", WCD9XXX_I2C_DIGITAL_1}, |
| {"tabla digital2", WCD9XXX_I2C_DIGITAL_2}, |
| {} |
| }; |
| MODULE_DEVICE_TABLE(i2c, tabla_id_table); |
| |
| static struct i2c_driver tabla_i2c_driver = { |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = "tabla-i2c-core", |
| }, |
| .id_table = tabla_id_table, |
| .probe = wcd9xxx_i2c_probe, |
| .remove = wcd9xxx_i2c_remove, |
| .resume = wcd9xxx_i2c_resume, |
| .suspend = wcd9xxx_i2c_suspend, |
| }; |
| |
| static struct i2c_driver wcd9xxx_i2c_driver = { |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = "wcd9xxx-i2c-core", |
| }, |
| .id_table = wcd9xxx_id_table, |
| .probe = wcd9xxx_i2c_probe, |
| .remove = wcd9xxx_i2c_remove, |
| .resume = wcd9xxx_i2c_resume, |
| .suspend = wcd9xxx_i2c_suspend, |
| }; |
| |
| static struct i2c_driver wcd9335_i2c_driver = { |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = "tasha-i2c-core", |
| }, |
| .id_table = tasha_id_table, |
| .probe = wcd9xxx_i2c_probe, |
| .remove = wcd9xxx_i2c_remove, |
| .resume = wcd9xxx_i2c_resume, |
| .suspend = wcd9xxx_i2c_suspend, |
| }; |
| |
| static int __init wcd9xxx_init(void) |
| { |
| int ret[NUM_WCD9XXX_REG_RET]; |
| int i = 0; |
| |
| wcd9xxx_set_intf_type(WCD9XXX_INTERFACE_TYPE_PROBING); |
| |
| ret[0] = slim_driver_register(&tabla_slim_driver); |
| if (ret[0]) |
| pr_err("Failed to register tabla SB driver: %d\n", ret[0]); |
| |
| ret[1] = slim_driver_register(&tabla2x_slim_driver); |
| if (ret[1]) |
| pr_err("Failed to register tabla2x SB driver: %d\n", ret[1]); |
| |
| ret[2] = i2c_add_driver(&tabla_i2c_driver); |
| if (ret[2]) |
| pr_err("failed to add the tabla2x I2C driver: %d\n", ret[2]); |
| |
| ret[3] = slim_driver_register(&sitar_slim_driver); |
| if (ret[3]) |
| pr_err("Failed to register sitar SB driver: %d\n", ret[3]); |
| |
| ret[4] = slim_driver_register(&sitar1p1_slim_driver); |
| if (ret[4]) |
| pr_err("Failed to register sitar SB driver: %d\n", ret[4]); |
| |
| ret[5] = slim_driver_register(&taiko_slim_driver); |
| if (ret[5]) |
| pr_err("Failed to register taiko SB driver: %d\n", ret[5]); |
| |
| ret[6] = i2c_add_driver(&wcd9xxx_i2c_driver); |
| if (ret[6]) |
| pr_err("failed to add the wcd9xxx I2C driver: %d\n", ret[6]); |
| |
| ret[7] = slim_driver_register(&tapan_slim_driver); |
| if (ret[7]) |
| pr_err("Failed to register tapan SB driver: %d\n", ret[7]); |
| |
| ret[8] = slim_driver_register(&tomtom_slim_driver); |
| if (ret[8]) |
| pr_err("Failed to register tomtom SB driver: %d\n", ret[8]); |
| |
| ret[9] = slim_driver_register(&wcd9335_slim_driver); |
| if (ret[9]) |
| pr_err("Failed to register tomtom SB driver: %d\n", ret[9]); |
| |
| |
| ret[10] = i2c_add_driver(&wcd9335_i2c_driver); |
| if (ret[10]) |
| pr_err("failed to add the wcd9335 I2C driver: %d\n", ret[10]); |
| |
| |
| for (i = 0; i < NUM_WCD9XXX_REG_RET; i++) { |
| if (ret[i]) |
| return ret[i]; |
| } |
| return 0; |
| } |
| module_init(wcd9xxx_init); |
| |
| static void __exit wcd9xxx_exit(void) |
| { |
| wcd9xxx_set_intf_type(WCD9XXX_INTERFACE_TYPE_PROBING); |
| } |
| module_exit(wcd9xxx_exit); |
| |
| MODULE_DESCRIPTION("Codec core driver"); |
| MODULE_VERSION("1.0"); |
| MODULE_LICENSE("GPL v2"); |