// SPDX-License-Identifier: GPL-2.0 // // CS35l41 ALSA HDA audio driver // // Copyright 2021 Cirrus Logic, Inc. // // Author: Lucas Tanure #include #include #include #include #include #include #include #include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_jack.h" #include "hda_generic.h" #include "hda_component.h" #include "cs35l41_hda.h" #include "hda_cs_dsp_ctl.h" #include "cs35l41_hda_property.h" #define CS35L41_PART "cs35l41" #define HALO_STATE_DSP_CTL_NAME "HALO_STATE" #define HALO_STATE_DSP_CTL_TYPE 5 #define HALO_STATE_DSP_CTL_ALG 262308 #define CAL_R_DSP_CTL_NAME "CAL_R" #define CAL_STATUS_DSP_CTL_NAME "CAL_STATUS" #define CAL_CHECKSUM_DSP_CTL_NAME "CAL_CHECKSUM" #define CAL_AMBIENT_DSP_CTL_NAME "CAL_AMBIENT" #define CAL_DSP_CTL_TYPE 5 #define CAL_DSP_CTL_ALG 205 #define CS35L41_UUID "50d90cdc-3de4-4f18-b528-c7fe3b71f40d" #define CS35L41_DSM_GET_MUTE 5 #define CS35L41_NOTIFY_EVENT 0x91 #define CS35L41_TUNING_SIG 0x109A4A35 enum cs35l41_tuning_param_types { TUNING_PARAM_GAIN, }; struct cs35l41_tuning_param_hdr { __le32 tuning_index; __le32 type; __le32 size; } __packed; struct cs35l41_tuning_param { struct cs35l41_tuning_param_hdr hdr; union { __le32 gain; }; } __packed; struct cs35l41_tuning_params { __le32 signature; __le32 version; __le32 size; __le32 num_entries; u8 data[]; } __packed; /* Firmware calibration controls */ static const struct cirrus_amp_cal_controls cs35l41_calibration_controls = { .alg_id = CAL_DSP_CTL_ALG, .mem_region = CAL_DSP_CTL_TYPE, .ambient = CAL_AMBIENT_DSP_CTL_NAME, .calr = CAL_R_DSP_CTL_NAME, .status = CAL_STATUS_DSP_CTL_NAME, .checksum = CAL_CHECKSUM_DSP_CTL_NAME, }; static bool firmware_autostart = 1; module_param(firmware_autostart, bool, 0444); MODULE_PARM_DESC(firmware_autostart, "Allow automatic firmware download on boot" "(0=Disable, 1=Enable) (default=1); "); static const struct reg_sequence cs35l41_hda_config[] = { { CS35L41_PLL_CLK_CTRL, 0x00000430 }, // 3072000Hz, BCLK Input, PLL_REFCLK_EN = 1 { CS35L41_DSP_CLK_CTRL, 0x00000003 }, // DSP CLK EN { CS35L41_GLOBAL_CLK_CTRL, 0x00000003 }, // GLOBAL_FS = 48 kHz { CS35L41_SP_ENABLES, 0x00010000 }, // ASP_RX1_EN = 1 { CS35L41_SP_RATE_CTRL, 0x00000021 }, // ASP_BCLK_FREQ = 3.072 MHz { CS35L41_SP_FORMAT, 0x20200200 }, // 32 bits RX/TX slots, I2S, clk consumer { CS35L41_SP_HIZ_CTRL, 0x00000002 }, // Hi-Z unused { CS35L41_SP_TX_WL, 0x00000018 }, // 24 cycles/slot { CS35L41_SP_RX_WL, 0x00000018 }, // 24 cycles/slot { CS35L41_DAC_PCM1_SRC, 0x00000008 }, // DACPCM1_SRC = ASPRX1 { CS35L41_ASP_TX1_SRC, 0x00000018 }, // ASPTX1 SRC = VMON { CS35L41_ASP_TX2_SRC, 0x00000019 }, // ASPTX2 SRC = IMON { CS35L41_ASP_TX3_SRC, 0x00000032 }, // ASPTX3 SRC = ERRVOL { CS35L41_ASP_TX4_SRC, 0x00000033 }, // ASPTX4 SRC = CLASSH_TGT { CS35L41_DSP1_RX1_SRC, 0x00000008 }, // DSP1RX1 SRC = ASPRX1 { CS35L41_DSP1_RX2_SRC, 0x00000009 }, // DSP1RX2 SRC = ASPRX2 { CS35L41_DSP1_RX3_SRC, 0x00000018 }, // DSP1RX3 SRC = VMON { CS35L41_DSP1_RX4_SRC, 0x00000019 }, // DSP1RX4 SRC = IMON { CS35L41_DSP1_RX5_SRC, 0x00000020 }, // DSP1RX5 SRC = ERRVOL }; static const struct reg_sequence cs35l41_hda_config_dsp[] = { { CS35L41_PLL_CLK_CTRL, 0x00000430 }, // 3072000Hz, BCLK Input, PLL_REFCLK_EN = 1 { CS35L41_DSP_CLK_CTRL, 0x00000003 }, // DSP CLK EN { CS35L41_GLOBAL_CLK_CTRL, 0x00000003 }, // GLOBAL_FS = 48 kHz { CS35L41_SP_ENABLES, 0x00010001 }, // ASP_RX1_EN = 1, ASP_TX1_EN = 1 { CS35L41_SP_RATE_CTRL, 0x00000021 }, // ASP_BCLK_FREQ = 3.072 MHz { CS35L41_SP_FORMAT, 0x20200200 }, // 32 bits RX/TX slots, I2S, clk consumer { CS35L41_SP_HIZ_CTRL, 0x00000003 }, // Hi-Z unused/disabled { CS35L41_SP_TX_WL, 0x00000018 }, // 24 cycles/slot { CS35L41_SP_RX_WL, 0x00000018 }, // 24 cycles/slot { CS35L41_DAC_PCM1_SRC, 0x00000032 }, // DACPCM1_SRC = DSP1TX1 { CS35L41_ASP_TX1_SRC, 0x00000018 }, // ASPTX1 SRC = VMON { CS35L41_ASP_TX2_SRC, 0x00000019 }, // ASPTX2 SRC = IMON { CS35L41_ASP_TX3_SRC, 0x00000028 }, // ASPTX3 SRC = VPMON { CS35L41_ASP_TX4_SRC, 0x00000029 }, // ASPTX4 SRC = VBSTMON { CS35L41_DSP1_RX1_SRC, 0x00000008 }, // DSP1RX1 SRC = ASPRX1 { CS35L41_DSP1_RX2_SRC, 0x00000008 }, // DSP1RX2 SRC = ASPRX1 { CS35L41_DSP1_RX3_SRC, 0x00000018 }, // DSP1RX3 SRC = VMON { CS35L41_DSP1_RX4_SRC, 0x00000019 }, // DSP1RX4 SRC = IMON { CS35L41_DSP1_RX6_SRC, 0x00000029 }, // DSP1RX6 SRC = VBSTMON }; static const struct reg_sequence cs35l41_hda_unmute[] = { { CS35L41_AMP_DIG_VOL_CTRL, 0x00008000 }, // AMP_HPF_PCM_EN = 1, AMP_VOL_PCM 0.0 dB { CS35L41_AMP_GAIN_CTRL, 0x00000084 }, // AMP_GAIN_PCM 4.5 dB }; static const struct reg_sequence cs35l41_hda_mute[] = { { CS35L41_AMP_GAIN_CTRL, 0x00000000 }, // AMP_GAIN_PCM 0.5 dB { CS35L41_AMP_DIG_VOL_CTRL, 0x0000A678 }, // AMP_HPF_PCM_EN = 1, AMP_VOL_PCM Mute }; static void cs35l41_add_controls(struct cs35l41_hda *cs35l41) { struct hda_cs_dsp_ctl_info info; info.device_name = cs35l41->amp_name; info.fw_type = cs35l41->firmware_type; info.card = cs35l41->codec->card; hda_cs_dsp_add_controls(&cs35l41->cs_dsp, &info); } static const struct cs_dsp_client_ops client_ops = { .control_remove = hda_cs_dsp_control_remove, }; static int cs35l41_request_tuning_param_file(struct cs35l41_hda *cs35l41, char *tuning_filename, const struct firmware **firmware, char **filename, const char *ssid) { int ret = 0; /* Filename is the same as the tuning file with "cfg" suffix */ *filename = kasprintf(GFP_KERNEL, "%scfg", tuning_filename); if (*filename == NULL) return -ENOMEM; ret = firmware_request_nowarn(firmware, *filename, cs35l41->dev); if (ret != 0) { dev_dbg(cs35l41->dev, "Failed to request '%s'\n", *filename); kfree(*filename); *filename = NULL; } return ret; } static int cs35l41_request_firmware_file(struct cs35l41_hda *cs35l41, const struct firmware **firmware, char **filename, const char *ssid, const char *amp_name, int spkid, const char *filetype) { const char * const dsp_name = cs35l41->cs_dsp.name; char *s, c; int ret = 0; if (spkid > -1 && ssid && amp_name) *filename = kasprintf(GFP_KERNEL, "cirrus/%s-%s-%s-%s-spkid%d-%s.%s", CS35L41_PART, dsp_name, hda_cs_dsp_fw_ids[cs35l41->firmware_type], ssid, spkid, amp_name, filetype); else if (spkid > -1 && ssid) *filename = kasprintf(GFP_KERNEL, "cirrus/%s-%s-%s-%s-spkid%d.%s", CS35L41_PART, dsp_name, hda_cs_dsp_fw_ids[cs35l41->firmware_type], ssid, spkid, filetype); else if (ssid && amp_name) *filename = kasprintf(GFP_KERNEL, "cirrus/%s-%s-%s-%s-%s.%s", CS35L41_PART, dsp_name, hda_cs_dsp_fw_ids[cs35l41->firmware_type], ssid, amp_name, filetype); else if (ssid) *filename = kasprintf(GFP_KERNEL, "cirrus/%s-%s-%s-%s.%s", CS35L41_PART, dsp_name, hda_cs_dsp_fw_ids[cs35l41->firmware_type], ssid, filetype); else *filename = kasprintf(GFP_KERNEL, "cirrus/%s-%s-%s.%s", CS35L41_PART, dsp_name, hda_cs_dsp_fw_ids[cs35l41->firmware_type], filetype); if (*filename == NULL) return -ENOMEM; /* * Make sure that filename is lower-case and any non alpha-numeric * characters except full stop and '/' are replaced with hyphens. */ s = *filename; while (*s) { c = *s; if (isalnum(c)) *s = tolower(c); else if (c != '.' && c != '/') *s = '-'; s++; } ret = firmware_request_nowarn(firmware, *filename, cs35l41->dev); if (ret != 0) { dev_dbg(cs35l41->dev, "Failed to request '%s'\n", *filename); kfree(*filename); *filename = NULL; } return ret; } static int cs35l41_request_firmware_files_spkid(struct cs35l41_hda *cs35l41, const struct firmware **wmfw_firmware, char **wmfw_filename, const struct firmware **coeff_firmware, char **coeff_filename) { int ret; /* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.wmfw */ ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, cs35l41->acpi_subsystem_id, cs35l41->amp_name, cs35l41->speaker_id, "wmfw"); if (!ret) { /* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.bin */ ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, cs35l41->acpi_subsystem_id, cs35l41->amp_name, cs35l41->speaker_id, "bin"); if (ret) goto coeff_err; return 0; } /* try cirrus/part-dspN-fwtype-sub<-ampname>.wmfw */ ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, cs35l41->acpi_subsystem_id, cs35l41->amp_name, -1, "wmfw"); if (!ret) { /* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.bin */ ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, cs35l41->acpi_subsystem_id, cs35l41->amp_name, cs35l41->speaker_id, "bin"); if (ret) goto coeff_err; return 0; } /* try cirrus/part-dspN-fwtype-sub<-spkidN>.wmfw */ ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, cs35l41->acpi_subsystem_id, NULL, cs35l41->speaker_id, "wmfw"); if (!ret) { /* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.bin */ ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, cs35l41->acpi_subsystem_id, cs35l41->amp_name, cs35l41->speaker_id, "bin"); if (ret) /* try cirrus/part-dspN-fwtype-sub<-spkidN>.bin */ ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, cs35l41->acpi_subsystem_id, NULL, cs35l41->speaker_id, "bin"); if (ret) goto coeff_err; return 0; } /* try cirrus/part-dspN-fwtype-sub.wmfw */ ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, cs35l41->acpi_subsystem_id, NULL, -1, "wmfw"); if (!ret) { /* try cirrus/part-dspN-fwtype-sub<-spkidN><-ampname>.bin */ ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, cs35l41->acpi_subsystem_id, cs35l41->amp_name, cs35l41->speaker_id, "bin"); if (ret) /* try cirrus/part-dspN-fwtype-sub<-spkidN>.bin */ ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, cs35l41->acpi_subsystem_id, NULL, cs35l41->speaker_id, "bin"); if (ret) goto coeff_err; } return ret; coeff_err: release_firmware(*wmfw_firmware); kfree(*wmfw_filename); return ret; } static int cs35l41_fallback_firmware_file(struct cs35l41_hda *cs35l41, const struct firmware **wmfw_firmware, char **wmfw_filename, const struct firmware **coeff_firmware, char **coeff_filename) { int ret; /* Handle fallback */ dev_warn(cs35l41->dev, "Falling back to default firmware.\n"); /* fallback try cirrus/part-dspN-fwtype.wmfw */ ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, NULL, NULL, -1, "wmfw"); if (ret) goto err; /* fallback try cirrus/part-dspN-fwtype.bin */ ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, NULL, NULL, -1, "bin"); if (ret) { release_firmware(*wmfw_firmware); kfree(*wmfw_filename); goto err; } return 0; err: dev_warn(cs35l41->dev, "Unable to find firmware and tuning\n"); return ret; } static int cs35l41_request_firmware_files(struct cs35l41_hda *cs35l41, const struct firmware **wmfw_firmware, char **wmfw_filename, const struct firmware **coeff_firmware, char **coeff_filename) { int ret; if (cs35l41->speaker_id > -1) { ret = cs35l41_request_firmware_files_spkid(cs35l41, wmfw_firmware, wmfw_filename, coeff_firmware, coeff_filename); goto out; } /* try cirrus/part-dspN-fwtype-sub<-ampname>.wmfw */ ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, cs35l41->acpi_subsystem_id, cs35l41->amp_name, -1, "wmfw"); if (!ret) { /* try cirrus/part-dspN-fwtype-sub<-ampname>.bin */ ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, cs35l41->acpi_subsystem_id, cs35l41->amp_name, -1, "bin"); if (ret) goto coeff_err; goto out; } /* try cirrus/part-dspN-fwtype-sub.wmfw */ ret = cs35l41_request_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, cs35l41->acpi_subsystem_id, NULL, -1, "wmfw"); if (!ret) { /* try cirrus/part-dspN-fwtype-sub<-ampname>.bin */ ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, cs35l41->acpi_subsystem_id, cs35l41->amp_name, -1, "bin"); if (ret) /* try cirrus/part-dspN-fwtype-sub.bin */ ret = cs35l41_request_firmware_file(cs35l41, coeff_firmware, coeff_filename, cs35l41->acpi_subsystem_id, NULL, -1, "bin"); if (ret) goto coeff_err; } out: if (ret) /* if all attempts at finding firmware fail, try fallback */ goto fallback; return 0; coeff_err: release_firmware(*wmfw_firmware); kfree(*wmfw_filename); fallback: return cs35l41_fallback_firmware_file(cs35l41, wmfw_firmware, wmfw_filename, coeff_firmware, coeff_filename); } static void cs35l41_hda_apply_calibration(struct cs35l41_hda *cs35l41) { int ret; if (!cs35l41->cal_data_valid) return; ret = cs_amp_write_cal_coeffs(&cs35l41->cs_dsp, &cs35l41_calibration_controls, &cs35l41->cal_data); if (ret < 0) dev_warn(cs35l41->dev, "Failed to apply calibration: %d\n", ret); else dev_info(cs35l41->dev, "Calibration applied: R0=%d\n", cs35l41->cal_data.calR); } static int cs35l41_read_silicon_uid(struct cs35l41_hda *cs35l41, u64 *uid) { u32 tmp; int ret; ret = regmap_read(cs35l41->regmap, CS35L41_DIE_STS2, &tmp); if (ret) { dev_err(cs35l41->dev, "Cannot obtain CS35L41_DIE_STS2: %d\n", ret); return ret; } *uid = tmp; *uid <<= 32; ret = regmap_read(cs35l41->regmap, CS35L41_DIE_STS1, &tmp); if (ret) { dev_err(cs35l41->dev, "Cannot obtain CS35L41_DIE_STS1: %d\n", ret); return ret; } *uid |= tmp; dev_dbg(cs35l41->dev, "UniqueID = %#llx\n", *uid); return 0; } static int cs35l41_get_calibration(struct cs35l41_hda *cs35l41) { u64 silicon_uid; int ret; ret = cs35l41_read_silicon_uid(cs35l41, &silicon_uid); if (ret < 0) return ret; ret = cs_amp_get_efi_calibration_data(cs35l41->dev, silicon_uid, cs35l41->index, &cs35l41->cal_data); /* Only return an error status if probe should be aborted */ if ((ret == -ENOENT) || (ret == -EOVERFLOW)) return 0; if (ret < 0) return ret; cs35l41->cal_data_valid = true; return 0; } static void cs35l41_set_default_tuning_params(struct cs35l41_hda *cs35l41) { cs35l41->tuning_gain = DEFAULT_AMP_GAIN_PCM; } static int cs35l41_read_tuning_params(struct cs35l41_hda *cs35l41, const struct firmware *firmware) { struct cs35l41_tuning_params *params; unsigned int offset = 0; unsigned int end; int i; params = (void *)&firmware->data[0]; if (le32_to_cpu(params->size) != firmware->size) { dev_err(cs35l41->dev, "Wrong Size for Tuning Param file. Expected %d got %zu\n", le32_to_cpu(params->size), firmware->size); return -EINVAL; } if (le32_to_cpu(params->version) != 1) { dev_err(cs35l41->dev, "Unsupported Tuning Param Version: %d\n", le32_to_cpu(params->version)); return -EINVAL; } if (le32_to_cpu(params->signature) != CS35L41_TUNING_SIG) { dev_err(cs35l41->dev, "Mismatched Signature for Tuning Param file. Expected %#x got %#x\n", CS35L41_TUNING_SIG, le32_to_cpu(params->signature)); return -EINVAL; } end = firmware->size - sizeof(struct cs35l41_tuning_params); for (i = 0; i < le32_to_cpu(params->num_entries); i++) { struct cs35l41_tuning_param *param; if ((offset >= end) || ((offset + sizeof(struct cs35l41_tuning_param_hdr)) >= end)) return -EFAULT; param = (void *)¶ms->data[offset]; offset += le32_to_cpu(param->hdr.size); if (offset > end) return -EFAULT; switch (le32_to_cpu(param->hdr.type)) { case TUNING_PARAM_GAIN: cs35l41->tuning_gain = le32_to_cpu(param->gain); dev_dbg(cs35l41->dev, "Applying Gain: %d\n", cs35l41->tuning_gain); break; default: break; } } return 0; } static int cs35l41_load_tuning_params(struct cs35l41_hda *cs35l41, char *tuning_filename) { const struct firmware *tuning_param_file = NULL; char *tuning_param_filename = NULL; int ret; ret = cs35l41_request_tuning_param_file(cs35l41, tuning_filename, &tuning_param_file, &tuning_param_filename, cs35l41->acpi_subsystem_id); if (ret) { dev_dbg(cs35l41->dev, "Missing Tuning Param for file: %s: %d\n", tuning_filename, ret); return 0; } ret = cs35l41_read_tuning_params(cs35l41, tuning_param_file); if (ret) { dev_err(cs35l41->dev, "Error reading Tuning Params from file: %s: %d\n", tuning_param_filename, ret); /* Reset to default Tuning Parameters */ cs35l41_set_default_tuning_params(cs35l41); } release_firmware(tuning_param_file); kfree(tuning_param_filename); return ret; } static int cs35l41_init_dsp(struct cs35l41_hda *cs35l41) { const struct firmware *coeff_firmware = NULL; const struct firmware *wmfw_firmware = NULL; struct cs_dsp *dsp = &cs35l41->cs_dsp; char *coeff_filename = NULL; char *wmfw_filename = NULL; int ret; if (!cs35l41->halo_initialized) { cs35l41_configure_cs_dsp(cs35l41->dev, cs35l41->regmap, dsp); dsp->client_ops = &client_ops; ret = cs_dsp_halo_init(&cs35l41->cs_dsp); if (ret) return ret; cs35l41->halo_initialized = true; } cs35l41_set_default_tuning_params(cs35l41); ret = cs35l41_request_firmware_files(cs35l41, &wmfw_firmware, &wmfw_filename, &coeff_firmware, &coeff_filename); if (ret < 0) return ret; dev_dbg(cs35l41->dev, "Loading WMFW Firmware: %s\n", wmfw_filename); if (coeff_filename) { dev_dbg(cs35l41->dev, "Loading Coefficient File: %s\n", coeff_filename); ret = cs35l41_load_tuning_params(cs35l41, coeff_filename); if (ret) dev_warn(cs35l41->dev, "Unable to load Tuning Parameters: %d\n", ret); } else { dev_warn(cs35l41->dev, "No Coefficient File available.\n"); } ret = cs_dsp_power_up(dsp, wmfw_firmware, wmfw_filename, coeff_firmware, coeff_filename, hda_cs_dsp_fw_ids[cs35l41->firmware_type]); if (ret) goto err; cs35l41_add_controls(cs35l41); cs35l41_hda_apply_calibration(cs35l41); err: if (ret) cs35l41_set_default_tuning_params(cs35l41); release_firmware(wmfw_firmware); release_firmware(coeff_firmware); kfree(wmfw_filename); kfree(coeff_filename); return ret; } static void cs35l41_shutdown_dsp(struct cs35l41_hda *cs35l41) { struct cs_dsp *dsp = &cs35l41->cs_dsp; cs35l41_set_default_tuning_params(cs35l41); cs_dsp_stop(dsp); cs_dsp_power_down(dsp); dev_dbg(cs35l41->dev, "Unloaded Firmware\n"); } static void cs35l41_remove_dsp(struct cs35l41_hda *cs35l41) { struct cs_dsp *dsp = &cs35l41->cs_dsp; cancel_work_sync(&cs35l41->fw_load_work); mutex_lock(&cs35l41->fw_mutex); cs35l41_shutdown_dsp(cs35l41); cs_dsp_remove(dsp); cs35l41->halo_initialized = false; mutex_unlock(&cs35l41->fw_mutex); } /* Protection release cycle to get the speaker out of Safe-Mode */ static void cs35l41_error_release(struct device *dev, struct regmap *regmap, unsigned int mask) { regmap_write(regmap, CS35L41_PROTECT_REL_ERR_IGN, 0); regmap_set_bits(regmap, CS35L41_PROTECT_REL_ERR_IGN, mask); regmap_clear_bits(regmap, CS35L41_PROTECT_REL_ERR_IGN, mask); } /* Clear all errors to release safe mode. Global Enable must be cleared first. */ static void cs35l41_irq_release(struct cs35l41_hda *cs35l41) { cs35l41_error_release(cs35l41->dev, cs35l41->regmap, cs35l41->irq_errors); cs35l41->irq_errors = 0; } static void cs35l41_hda_play_start(struct device *dev) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); struct regmap *reg = cs35l41->regmap; dev_dbg(dev, "Play (Start)\n"); if (cs35l41->playback_started) { dev_dbg(dev, "Playback already started."); return; } cs35l41->playback_started = true; if (cs35l41->cs_dsp.running) { regmap_multi_reg_write(reg, cs35l41_hda_config_dsp, ARRAY_SIZE(cs35l41_hda_config_dsp)); if (cs35l41->hw_cfg.bst_type == CS35L41_INT_BOOST) regmap_write(reg, CS35L41_DSP1_RX5_SRC, CS35L41_INPUT_SRC_VPMON); else regmap_write(reg, CS35L41_DSP1_RX5_SRC, CS35L41_INPUT_SRC_VBSTMON); regmap_update_bits(reg, CS35L41_PWR_CTRL2, CS35L41_VMON_EN_MASK | CS35L41_IMON_EN_MASK, 1 << CS35L41_VMON_EN_SHIFT | 1 << CS35L41_IMON_EN_SHIFT); cs35l41_set_cspl_mbox_cmd(cs35l41->dev, reg, CSPL_MBOX_CMD_RESUME); } else { regmap_multi_reg_write(reg, cs35l41_hda_config, ARRAY_SIZE(cs35l41_hda_config)); } regmap_update_bits(reg, CS35L41_PWR_CTRL2, CS35L41_AMP_EN_MASK, 1 << CS35L41_AMP_EN_SHIFT); if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST) regmap_write(reg, CS35L41_GPIO1_CTRL1, 0x00008001); } static void cs35l41_mute(struct device *dev, bool mute) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); struct regmap *reg = cs35l41->regmap; unsigned int amp_gain; dev_dbg(dev, "Mute(%d:%d) Playback Started: %d\n", mute, cs35l41->mute_override, cs35l41->playback_started); if (cs35l41->playback_started) { if (mute || cs35l41->mute_override) { dev_dbg(dev, "Muting\n"); regmap_multi_reg_write(reg, cs35l41_hda_mute, ARRAY_SIZE(cs35l41_hda_mute)); } else { dev_dbg(dev, "Unmuting\n"); if (cs35l41->cs_dsp.running) { dev_dbg(dev, "Using Tuned Gain: %d\n", cs35l41->tuning_gain); amp_gain = (cs35l41->tuning_gain << CS35L41_AMP_GAIN_PCM_SHIFT) | (DEFAULT_AMP_GAIN_PDM << CS35L41_AMP_GAIN_PDM_SHIFT); /* AMP_HPF_PCM_EN = 1, AMP_VOL_PCM 0.0 dB */ regmap_write(reg, CS35L41_AMP_DIG_VOL_CTRL, 0x00008000); regmap_write(reg, CS35L41_AMP_GAIN_CTRL, amp_gain); } else { regmap_multi_reg_write(reg, cs35l41_hda_unmute, ARRAY_SIZE(cs35l41_hda_unmute)); } } } } static void cs35l41_hda_play_done(struct device *dev) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); struct regmap *reg = cs35l41->regmap; dev_dbg(dev, "Play (Complete)\n"); cs35l41_global_enable(dev, reg, cs35l41->hw_cfg.bst_type, 1, &cs35l41->cs_dsp); cs35l41_mute(dev, false); } static void cs35l41_hda_pause_start(struct device *dev) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); struct regmap *reg = cs35l41->regmap; dev_dbg(dev, "Pause (Start)\n"); cs35l41_mute(dev, true); cs35l41_global_enable(dev, reg, cs35l41->hw_cfg.bst_type, 0, &cs35l41->cs_dsp); } static void cs35l41_hda_pause_done(struct device *dev) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); struct regmap *reg = cs35l41->regmap; dev_dbg(dev, "Pause (Complete)\n"); regmap_update_bits(reg, CS35L41_PWR_CTRL2, CS35L41_AMP_EN_MASK, 0 << CS35L41_AMP_EN_SHIFT); if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST) regmap_write(reg, CS35L41_GPIO1_CTRL1, 0x00000001); if (cs35l41->cs_dsp.running) { cs35l41_set_cspl_mbox_cmd(dev, reg, CSPL_MBOX_CMD_PAUSE); regmap_update_bits(reg, CS35L41_PWR_CTRL2, CS35L41_VMON_EN_MASK | CS35L41_IMON_EN_MASK, 0 << CS35L41_VMON_EN_SHIFT | 0 << CS35L41_IMON_EN_SHIFT); } cs35l41_irq_release(cs35l41); cs35l41->playback_started = false; } static void cs35l41_hda_pre_playback_hook(struct device *dev, int action) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); switch (action) { case HDA_GEN_PCM_ACT_CLEANUP: mutex_lock(&cs35l41->fw_mutex); cs35l41_hda_pause_start(dev); mutex_unlock(&cs35l41->fw_mutex); break; default: break; } } static void cs35l41_hda_playback_hook(struct device *dev, int action) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); switch (action) { case HDA_GEN_PCM_ACT_OPEN: /* * All amps must be resumed before we can start playing back. * This ensures, for external boost, that all amps are in AMP_SAFE mode. * Do this in HDA_GEN_PCM_ACT_OPEN, since this is run prior to any of the * other actions. */ pm_runtime_get_sync(dev); break; case HDA_GEN_PCM_ACT_PREPARE: mutex_lock(&cs35l41->fw_mutex); cs35l41_hda_play_start(dev); mutex_unlock(&cs35l41->fw_mutex); break; case HDA_GEN_PCM_ACT_CLEANUP: mutex_lock(&cs35l41->fw_mutex); cs35l41_hda_pause_done(dev); mutex_unlock(&cs35l41->fw_mutex); break; case HDA_GEN_PCM_ACT_CLOSE: mutex_lock(&cs35l41->fw_mutex); if (!cs35l41->cs_dsp.running && cs35l41->request_fw_load && !cs35l41->fw_request_ongoing) { dev_info(dev, "Requesting Firmware Load after HDA_GEN_PCM_ACT_CLOSE\n"); cs35l41->fw_request_ongoing = true; schedule_work(&cs35l41->fw_load_work); } mutex_unlock(&cs35l41->fw_mutex); /* * Playback must be finished for all amps before we start runtime suspend. * This ensures no amps are playing back when we start putting them to sleep. */ pm_runtime_mark_last_busy(dev); pm_runtime_put_autosuspend(dev); break; default: break; } } static void cs35l41_hda_post_playback_hook(struct device *dev, int action) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); switch (action) { case HDA_GEN_PCM_ACT_PREPARE: mutex_lock(&cs35l41->fw_mutex); cs35l41_hda_play_done(dev); mutex_unlock(&cs35l41->fw_mutex); break; default: break; } } static int cs35l41_hda_channel_map(struct device *dev, unsigned int tx_num, unsigned int *tx_slot, unsigned int rx_num, unsigned int *rx_slot) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); static const char * const channel_name[] = { "L", "R" }; if (!cs35l41->amp_name) { if (*rx_slot >= ARRAY_SIZE(channel_name)) return -EINVAL; cs35l41->amp_name = devm_kasprintf(cs35l41->dev, GFP_KERNEL, "%s%d", channel_name[*rx_slot], cs35l41->channel_index); if (!cs35l41->amp_name) return -ENOMEM; } return cs35l41_set_channels(cs35l41->dev, cs35l41->regmap, tx_num, tx_slot, rx_num, rx_slot); } static int cs35l41_verify_id(struct cs35l41_hda *cs35l41, unsigned int *regid, unsigned int *reg_revid) { unsigned int mtl_revid, chipid; int ret; ret = regmap_read(cs35l41->regmap, CS35L41_DEVID, regid); if (ret) { dev_err_probe(cs35l41->dev, ret, "Get Device ID failed\n"); return ret; } ret = regmap_read(cs35l41->regmap, CS35L41_REVID, reg_revid); if (ret) { dev_err_probe(cs35l41->dev, ret, "Get Revision ID failed\n"); return ret; } mtl_revid = *reg_revid & CS35L41_MTLREVID_MASK; chipid = (mtl_revid % 2) ? CS35L41R_CHIP_ID : CS35L41_CHIP_ID; if (*regid != chipid) { dev_err(cs35l41->dev, "CS35L41 Device ID (%X). Expected ID %X\n", *regid, chipid); return -ENODEV; } return 0; } static int cs35l41_ready_for_reset(struct cs35l41_hda *cs35l41) { mutex_lock(&cs35l41->fw_mutex); if (cs35l41->cs_dsp.running) { cs35l41->cs_dsp.running = false; cs35l41->cs_dsp.booted = false; } regcache_mark_dirty(cs35l41->regmap); mutex_unlock(&cs35l41->fw_mutex); return 0; } static int cs35l41_system_suspend_prep(struct device *dev) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); dev_dbg(cs35l41->dev, "System Suspend Prepare\n"); if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) { dev_err_once(cs35l41->dev, "System Suspend not supported\n"); return 0; /* don't block the whole system suspend */ } mutex_lock(&cs35l41->fw_mutex); if (cs35l41->playback_started) cs35l41_hda_pause_start(dev); mutex_unlock(&cs35l41->fw_mutex); return 0; } static int cs35l41_system_suspend(struct device *dev) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); int ret; dev_dbg(cs35l41->dev, "System Suspend\n"); if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) { dev_err_once(cs35l41->dev, "System Suspend not supported\n"); return 0; /* don't block the whole system suspend */ } mutex_lock(&cs35l41->fw_mutex); if (cs35l41->playback_started) cs35l41_hda_pause_done(dev); mutex_unlock(&cs35l41->fw_mutex); ret = pm_runtime_force_suspend(dev); if (ret) { dev_err(dev, "System Suspend Failed, unable to runtime suspend: %d\n", ret); return ret; } /* Shutdown DSP before system suspend */ ret = cs35l41_ready_for_reset(cs35l41); if (ret) dev_err(dev, "System Suspend Failed, not ready for Reset: %d\n", ret); if (cs35l41->reset_gpio) { dev_info(cs35l41->dev, "Asserting Reset\n"); gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); usleep_range(2000, 2100); } dev_dbg(cs35l41->dev, "System Suspended\n"); return ret; } static int cs35l41_wait_boot_done(struct cs35l41_hda *cs35l41) { unsigned int int_status; int ret; ret = regmap_read_poll_timeout(cs35l41->regmap, CS35L41_IRQ1_STATUS4, int_status, int_status & CS35L41_OTP_BOOT_DONE, 1000, 100000); if (ret) { dev_err(cs35l41->dev, "Failed waiting for OTP_BOOT_DONE\n"); return ret; } ret = regmap_read(cs35l41->regmap, CS35L41_IRQ1_STATUS3, &int_status); if (ret || (int_status & CS35L41_OTP_BOOT_ERR)) { dev_err(cs35l41->dev, "OTP Boot status %x error\n", int_status & CS35L41_OTP_BOOT_ERR); if (!ret) ret = -EIO; return ret; } return 0; } static int cs35l41_system_resume(struct device *dev) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); int ret; dev_dbg(cs35l41->dev, "System Resume\n"); if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) { dev_err_once(cs35l41->dev, "System Resume not supported\n"); return 0; /* don't block the whole system resume */ } if (cs35l41->reset_gpio) { gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); usleep_range(2000, 2100); gpiod_set_value_cansleep(cs35l41->reset_gpio, 1); } usleep_range(2000, 2100); regcache_cache_only(cs35l41->regmap, false); regmap_write(cs35l41->regmap, CS35L41_SFT_RESET, CS35L41_SOFTWARE_RESET); usleep_range(2000, 2100); ret = cs35l41_wait_boot_done(cs35l41); if (ret) return ret; regcache_cache_only(cs35l41->regmap, true); ret = pm_runtime_force_resume(dev); if (ret) { dev_err(dev, "System Resume Failed: Unable to runtime resume: %d\n", ret); return ret; } mutex_lock(&cs35l41->fw_mutex); if (cs35l41->request_fw_load && !cs35l41->fw_request_ongoing) { cs35l41->fw_request_ongoing = true; schedule_work(&cs35l41->fw_load_work); } mutex_unlock(&cs35l41->fw_mutex); return ret; } static int cs35l41_runtime_idle(struct device *dev) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) return -EBUSY; /* suspend not supported yet on this model */ return 0; } static int cs35l41_runtime_suspend(struct device *dev) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); int ret = 0; dev_dbg(cs35l41->dev, "Runtime Suspend\n"); if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) { dev_dbg(cs35l41->dev, "Runtime Suspend not supported\n"); return 0; } mutex_lock(&cs35l41->fw_mutex); if (cs35l41->cs_dsp.running) { ret = cs35l41_enter_hibernate(cs35l41->dev, cs35l41->regmap, cs35l41->hw_cfg.bst_type); if (ret) goto err; } else { cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type); } regcache_cache_only(cs35l41->regmap, true); regcache_mark_dirty(cs35l41->regmap); err: mutex_unlock(&cs35l41->fw_mutex); return ret; } static int cs35l41_runtime_resume(struct device *dev) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); unsigned int regid, reg_revid; int ret = 0; dev_dbg(cs35l41->dev, "Runtime Resume\n"); if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST_NO_VSPK_SWITCH) { dev_dbg(cs35l41->dev, "Runtime Resume not supported\n"); return 0; } mutex_lock(&cs35l41->fw_mutex); regcache_cache_only(cs35l41->regmap, false); if (cs35l41->cs_dsp.running) { ret = cs35l41_exit_hibernate(cs35l41->dev, cs35l41->regmap); if (ret) { dev_warn(cs35l41->dev, "Unable to exit Hibernate."); goto err; } } ret = cs35l41_verify_id(cs35l41, ®id, ®_revid); if (ret) goto err; /* Test key needs to be unlocked to allow the OTP settings to re-apply */ cs35l41_test_key_unlock(cs35l41->dev, cs35l41->regmap); ret = regcache_sync(cs35l41->regmap); cs35l41_test_key_lock(cs35l41->dev, cs35l41->regmap); if (ret) { dev_err(cs35l41->dev, "Failed to restore register cache: %d\n", ret); goto err; } if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST) cs35l41_init_boost(cs35l41->dev, cs35l41->regmap, &cs35l41->hw_cfg); dev_dbg(cs35l41->dev, "CS35L41 Resumed (%x), Revision: %02X\n", regid, reg_revid); err: mutex_unlock(&cs35l41->fw_mutex); return ret; } static int cs35l41_smart_amp(struct cs35l41_hda *cs35l41) { unsigned int fw_status; __be32 halo_sts; int ret; if (cs35l41->bypass_fw) { dev_warn(cs35l41->dev, "Bypassing Firmware.\n"); return 0; } ret = cs35l41_init_dsp(cs35l41); if (ret) { dev_warn(cs35l41->dev, "Cannot Initialize Firmware. Error: %d\n", ret); goto clean_dsp; } ret = cs35l41_write_fs_errata(cs35l41->dev, cs35l41->regmap); if (ret) { dev_err(cs35l41->dev, "Cannot Write FS Errata: %d\n", ret); goto clean_dsp; } ret = cs_dsp_run(&cs35l41->cs_dsp); if (ret) { dev_err(cs35l41->dev, "Fail to start dsp: %d\n", ret); goto clean_dsp; } ret = read_poll_timeout(hda_cs_dsp_read_ctl, ret, be32_to_cpu(halo_sts) == HALO_STATE_CODE_RUN, 1000, 15000, false, &cs35l41->cs_dsp, HALO_STATE_DSP_CTL_NAME, HALO_STATE_DSP_CTL_TYPE, HALO_STATE_DSP_CTL_ALG, &halo_sts, sizeof(halo_sts)); if (ret) { dev_err(cs35l41->dev, "Timeout waiting for HALO Core to start. State: %u\n", halo_sts); goto clean_dsp; } ret = regmap_read(cs35l41->regmap, CS35L41_DSP_MBOX_2, &fw_status); if (ret < 0) { dev_err(cs35l41->dev, "Failed to read firmware status: %d\n", ret); goto clean_dsp; } switch (fw_status) { case CSPL_MBOX_STS_RUNNING: case CSPL_MBOX_STS_PAUSED: break; default: dev_err(cs35l41->dev, "Firmware status is invalid: %u\n", fw_status); ret = -EINVAL; goto clean_dsp; } ret = cs35l41_set_cspl_mbox_cmd(cs35l41->dev, cs35l41->regmap, CSPL_MBOX_CMD_PAUSE); if (ret) { dev_err(cs35l41->dev, "Error waiting for DSP to pause: %u\n", ret); goto clean_dsp; } dev_info(cs35l41->dev, "Firmware Loaded - Type: %s, Gain: %d\n", hda_cs_dsp_fw_ids[cs35l41->firmware_type], cs35l41->tuning_gain); return 0; clean_dsp: cs35l41_shutdown_dsp(cs35l41); return ret; } static void cs35l41_load_firmware(struct cs35l41_hda *cs35l41, bool load) { if (cs35l41->cs_dsp.running && !load) { dev_dbg(cs35l41->dev, "Unloading Firmware\n"); cs35l41_shutdown_dsp(cs35l41); } else if (!cs35l41->cs_dsp.running && load) { dev_dbg(cs35l41->dev, "Loading Firmware\n"); cs35l41_smart_amp(cs35l41); } else { dev_dbg(cs35l41->dev, "Unable to Load firmware.\n"); } } static int cs35l41_fw_load_ctl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = cs35l41->request_fw_load; return 0; } static int cs35l41_mute_override_ctl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = cs35l41->mute_override; return 0; } static void cs35l41_fw_load_work(struct work_struct *work) { struct cs35l41_hda *cs35l41 = container_of(work, struct cs35l41_hda, fw_load_work); pm_runtime_get_sync(cs35l41->dev); mutex_lock(&cs35l41->fw_mutex); /* Recheck if playback is ongoing, mutex will block playback during firmware loading */ if (cs35l41->playback_started) dev_err(cs35l41->dev, "Cannot Load/Unload firmware during Playback. Retrying...\n"); else cs35l41_load_firmware(cs35l41, cs35l41->request_fw_load); cs35l41->fw_request_ongoing = false; mutex_unlock(&cs35l41->fw_mutex); pm_runtime_mark_last_busy(cs35l41->dev); pm_runtime_put_autosuspend(cs35l41->dev); } static int cs35l41_fw_load_ctl_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol); if (cs35l41->request_fw_load == ucontrol->value.integer.value[0]) return 0; if (cs35l41->fw_request_ongoing) { dev_dbg(cs35l41->dev, "Existing request not complete\n"); return -EBUSY; } /* Check if playback is ongoing when initial request is made */ if (cs35l41->playback_started) { dev_err(cs35l41->dev, "Cannot Load/Unload firmware during Playback\n"); return -EBUSY; } cs35l41->fw_request_ongoing = true; cs35l41->request_fw_load = ucontrol->value.integer.value[0]; schedule_work(&cs35l41->fw_load_work); return 1; } static int cs35l41_fw_type_ctl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol); ucontrol->value.enumerated.item[0] = cs35l41->firmware_type; return 0; } static int cs35l41_fw_type_ctl_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct cs35l41_hda *cs35l41 = snd_kcontrol_chip(kcontrol); if (ucontrol->value.enumerated.item[0] < HDA_CS_DSP_NUM_FW) { if (cs35l41->firmware_type != ucontrol->value.enumerated.item[0]) { cs35l41->firmware_type = ucontrol->value.enumerated.item[0]; return 1; } else { return 0; } } return -EINVAL; } static int cs35l41_fw_type_ctl_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(hda_cs_dsp_fw_ids), hda_cs_dsp_fw_ids); } static int cs35l41_create_controls(struct cs35l41_hda *cs35l41) { char fw_type_ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; char fw_load_ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; char mute_override_ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; struct snd_kcontrol_new fw_type_ctl = { .name = fw_type_ctl_name, .iface = SNDRV_CTL_ELEM_IFACE_CARD, .info = cs35l41_fw_type_ctl_info, .get = cs35l41_fw_type_ctl_get, .put = cs35l41_fw_type_ctl_put, }; struct snd_kcontrol_new fw_load_ctl = { .name = fw_load_ctl_name, .iface = SNDRV_CTL_ELEM_IFACE_CARD, .info = snd_ctl_boolean_mono_info, .get = cs35l41_fw_load_ctl_get, .put = cs35l41_fw_load_ctl_put, }; struct snd_kcontrol_new mute_override_ctl = { .name = mute_override_ctl_name, .iface = SNDRV_CTL_ELEM_IFACE_CARD, .info = snd_ctl_boolean_mono_info, .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, .get = cs35l41_mute_override_ctl_get, }; int ret; scnprintf(fw_type_ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s DSP1 Firmware Type", cs35l41->amp_name); scnprintf(fw_load_ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s DSP1 Firmware Load", cs35l41->amp_name); scnprintf(mute_override_ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s Forced Mute Status", cs35l41->amp_name); ret = snd_ctl_add(cs35l41->codec->card, snd_ctl_new1(&fw_type_ctl, cs35l41)); if (ret) { dev_err(cs35l41->dev, "Failed to add KControl %s = %d\n", fw_type_ctl.name, ret); return ret; } dev_dbg(cs35l41->dev, "Added Control %s\n", fw_type_ctl.name); ret = snd_ctl_add(cs35l41->codec->card, snd_ctl_new1(&fw_load_ctl, cs35l41)); if (ret) { dev_err(cs35l41->dev, "Failed to add KControl %s = %d\n", fw_load_ctl.name, ret); return ret; } dev_dbg(cs35l41->dev, "Added Control %s\n", fw_load_ctl.name); ret = snd_ctl_add(cs35l41->codec->card, snd_ctl_new1(&mute_override_ctl, cs35l41)); if (ret) { dev_err(cs35l41->dev, "Failed to add KControl %s = %d\n", mute_override_ctl.name, ret); return ret; } dev_dbg(cs35l41->dev, "Added Control %s\n", mute_override_ctl.name); return 0; } static bool cs35l41_dsm_supported(acpi_handle handle, unsigned int commands) { guid_t guid; guid_parse(CS35L41_UUID, &guid); return acpi_check_dsm(handle, &guid, 0, BIT(commands)); } static int cs35l41_get_acpi_mute_state(struct cs35l41_hda *cs35l41, acpi_handle handle) { guid_t guid; union acpi_object *ret; int mute = -ENODEV; guid_parse(CS35L41_UUID, &guid); if (cs35l41_dsm_supported(handle, CS35L41_DSM_GET_MUTE)) { ret = acpi_evaluate_dsm(handle, &guid, 0, CS35L41_DSM_GET_MUTE, NULL); mute = *ret->buffer.pointer; dev_dbg(cs35l41->dev, "CS35L41_DSM_GET_MUTE: %d\n", mute); } dev_dbg(cs35l41->dev, "%s: %d\n", __func__, mute); return mute; } static void cs35l41_acpi_device_notify(acpi_handle handle, u32 event, struct device *dev) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); int mute; if (event != CS35L41_NOTIFY_EVENT) return; mute = cs35l41_get_acpi_mute_state(cs35l41, handle); if (mute < 0) { dev_warn(cs35l41->dev, "Unable to retrieve mute state: %d\n", mute); return; } dev_dbg(cs35l41->dev, "Requesting mute value: %d\n", mute); cs35l41->mute_override = (mute > 0); cs35l41_mute(cs35l41->dev, cs35l41->mute_override); } static int cs35l41_hda_bind(struct device *dev, struct device *master, void *master_data) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); struct hda_component *comps = master_data; unsigned int sleep_flags; int ret = 0; if (!comps || cs35l41->index < 0 || cs35l41->index >= HDA_MAX_COMPONENTS) return -EINVAL; comps = &comps[cs35l41->index]; if (comps->dev) return -EBUSY; pm_runtime_get_sync(dev); mutex_lock(&cs35l41->fw_mutex); comps->dev = dev; if (!cs35l41->acpi_subsystem_id) cs35l41->acpi_subsystem_id = kasprintf(GFP_KERNEL, "%.8x", comps->codec->core.subsystem_id); cs35l41->codec = comps->codec; strscpy(comps->name, dev_name(dev), sizeof(comps->name)); cs35l41->firmware_type = HDA_CS_DSP_FW_SPK_PROT; if (firmware_autostart) { dev_dbg(cs35l41->dev, "Firmware Autostart.\n"); cs35l41->request_fw_load = true; if (cs35l41_smart_amp(cs35l41) < 0) dev_warn(cs35l41->dev, "Cannot Run Firmware, reverting to dsp bypass...\n"); } else { dev_dbg(cs35l41->dev, "Firmware Autostart is disabled.\n"); } ret = cs35l41_create_controls(cs35l41); comps->playback_hook = cs35l41_hda_playback_hook; comps->pre_playback_hook = cs35l41_hda_pre_playback_hook; comps->post_playback_hook = cs35l41_hda_post_playback_hook; comps->acpi_notify = cs35l41_acpi_device_notify; comps->adev = cs35l41->dacpi; comps->acpi_notifications_supported = cs35l41_dsm_supported(acpi_device_handle(comps->adev), CS35L41_DSM_GET_MUTE); cs35l41->mute_override = cs35l41_get_acpi_mute_state(cs35l41, acpi_device_handle(cs35l41->dacpi)) > 0; mutex_unlock(&cs35l41->fw_mutex); sleep_flags = lock_system_sleep(); if (!device_link_add(&comps->codec->core.dev, cs35l41->dev, DL_FLAG_STATELESS)) dev_warn(dev, "Unable to create device link\n"); unlock_system_sleep(sleep_flags); pm_runtime_mark_last_busy(dev); pm_runtime_put_autosuspend(dev); dev_info(cs35l41->dev, "CS35L41 Bound - SSID: %s, BST: %d, VSPK: %d, CH: %c, FW EN: %d, SPKID: %d\n", cs35l41->acpi_subsystem_id, cs35l41->hw_cfg.bst_type, cs35l41->hw_cfg.gpio1.func == CS35l41_VSPK_SWITCH, cs35l41->hw_cfg.spk_pos ? 'R' : 'L', cs35l41->cs_dsp.running, cs35l41->speaker_id); return ret; } static void cs35l41_hda_unbind(struct device *dev, struct device *master, void *master_data) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); struct hda_component *comps = master_data; unsigned int sleep_flags; if (comps[cs35l41->index].dev == dev) { memset(&comps[cs35l41->index], 0, sizeof(*comps)); sleep_flags = lock_system_sleep(); device_link_remove(&comps->codec->core.dev, cs35l41->dev); unlock_system_sleep(sleep_flags); } } static const struct component_ops cs35l41_hda_comp_ops = { .bind = cs35l41_hda_bind, .unbind = cs35l41_hda_unbind, }; static irqreturn_t cs35l41_bst_short_err(int irq, void *data) { struct cs35l41_hda *cs35l41 = data; dev_crit_ratelimited(cs35l41->dev, "LBST Error\n"); set_bit(CS35L41_BST_SHORT_ERR_RLS_SHIFT, &cs35l41->irq_errors); return IRQ_HANDLED; } static irqreturn_t cs35l41_bst_dcm_uvp_err(int irq, void *data) { struct cs35l41_hda *cs35l41 = data; dev_crit_ratelimited(cs35l41->dev, "DCM VBST Under Voltage Error\n"); set_bit(CS35L41_BST_UVP_ERR_RLS_SHIFT, &cs35l41->irq_errors); return IRQ_HANDLED; } static irqreturn_t cs35l41_bst_ovp_err(int irq, void *data) { struct cs35l41_hda *cs35l41 = data; dev_crit_ratelimited(cs35l41->dev, "VBST Over Voltage error\n"); set_bit(CS35L41_BST_OVP_ERR_RLS_SHIFT, &cs35l41->irq_errors); return IRQ_HANDLED; } static irqreturn_t cs35l41_temp_err(int irq, void *data) { struct cs35l41_hda *cs35l41 = data; dev_crit_ratelimited(cs35l41->dev, "Over temperature error\n"); set_bit(CS35L41_TEMP_ERR_RLS_SHIFT, &cs35l41->irq_errors); return IRQ_HANDLED; } static irqreturn_t cs35l41_temp_warn(int irq, void *data) { struct cs35l41_hda *cs35l41 = data; dev_crit_ratelimited(cs35l41->dev, "Over temperature warning\n"); set_bit(CS35L41_TEMP_WARN_ERR_RLS_SHIFT, &cs35l41->irq_errors); return IRQ_HANDLED; } static irqreturn_t cs35l41_amp_short(int irq, void *data) { struct cs35l41_hda *cs35l41 = data; dev_crit_ratelimited(cs35l41->dev, "Amp short error\n"); set_bit(CS35L41_AMP_SHORT_ERR_RLS_SHIFT, &cs35l41->irq_errors); return IRQ_HANDLED; } static const struct cs35l41_irq cs35l41_irqs[] = { CS35L41_IRQ(BST_OVP_ERR, "Boost Overvoltage Error", cs35l41_bst_ovp_err), CS35L41_IRQ(BST_DCM_UVP_ERR, "Boost Undervoltage Error", cs35l41_bst_dcm_uvp_err), CS35L41_IRQ(BST_SHORT_ERR, "Boost Inductor Short Error", cs35l41_bst_short_err), CS35L41_IRQ(TEMP_WARN, "Temperature Warning", cs35l41_temp_warn), CS35L41_IRQ(TEMP_ERR, "Temperature Error", cs35l41_temp_err), CS35L41_IRQ(AMP_SHORT_ERR, "Amp Short", cs35l41_amp_short), }; static const struct regmap_irq cs35l41_reg_irqs[] = { CS35L41_REG_IRQ(IRQ1_STATUS1, BST_OVP_ERR), CS35L41_REG_IRQ(IRQ1_STATUS1, BST_DCM_UVP_ERR), CS35L41_REG_IRQ(IRQ1_STATUS1, BST_SHORT_ERR), CS35L41_REG_IRQ(IRQ1_STATUS1, TEMP_WARN), CS35L41_REG_IRQ(IRQ1_STATUS1, TEMP_ERR), CS35L41_REG_IRQ(IRQ1_STATUS1, AMP_SHORT_ERR), }; static struct regmap_irq_chip cs35l41_regmap_irq_chip = { .name = "cs35l41 IRQ1 Controller", .status_base = CS35L41_IRQ1_STATUS1, .mask_base = CS35L41_IRQ1_MASK1, .ack_base = CS35L41_IRQ1_STATUS1, .num_regs = 4, .irqs = cs35l41_reg_irqs, .num_irqs = ARRAY_SIZE(cs35l41_reg_irqs), .runtime_pm = true, }; static void cs35l41_configure_interrupt(struct cs35l41_hda *cs35l41, int irq_pol) { int irq; int ret; int i; if (!cs35l41->irq) { dev_warn(cs35l41->dev, "No Interrupt Found"); goto err; } ret = devm_regmap_add_irq_chip(cs35l41->dev, cs35l41->regmap, cs35l41->irq, IRQF_ONESHOT | IRQF_SHARED | irq_pol, 0, &cs35l41_regmap_irq_chip, &cs35l41->irq_data); if (ret) { dev_dbg(cs35l41->dev, "Unable to add IRQ Chip: %d.", ret); goto err; } for (i = 0; i < ARRAY_SIZE(cs35l41_irqs); i++) { irq = regmap_irq_get_virq(cs35l41->irq_data, cs35l41_irqs[i].irq); if (irq < 0) { ret = irq; dev_dbg(cs35l41->dev, "Unable to map IRQ %s: %d.", cs35l41_irqs[i].name, ret); goto err; } ret = devm_request_threaded_irq(cs35l41->dev, irq, NULL, cs35l41_irqs[i].handler, IRQF_ONESHOT | IRQF_SHARED | irq_pol, cs35l41_irqs[i].name, cs35l41); if (ret) { dev_dbg(cs35l41->dev, "Unable to allocate IRQ %s:: %d.", cs35l41_irqs[i].name, ret); goto err; } } return; err: dev_warn(cs35l41->dev, "IRQ Config Failed. Amp errors may not be recoverable without reboot."); } static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41) { struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg; bool using_irq = false; int irq_pol; int ret; if (!cs35l41->hw_cfg.valid) return -EINVAL; ret = cs35l41_init_boost(cs35l41->dev, cs35l41->regmap, hw_cfg); if (ret) return ret; if (hw_cfg->gpio1.valid) { switch (hw_cfg->gpio1.func) { case CS35L41_NOT_USED: break; case CS35l41_VSPK_SWITCH: hw_cfg->gpio1.func = CS35L41_GPIO1_GPIO; hw_cfg->gpio1.out_en = true; break; case CS35l41_SYNC: hw_cfg->gpio1.func = CS35L41_GPIO1_MDSYNC; break; default: dev_err(cs35l41->dev, "Invalid function %d for GPIO1\n", hw_cfg->gpio1.func); return -EINVAL; } } if (hw_cfg->gpio2.valid) { switch (hw_cfg->gpio2.func) { case CS35L41_NOT_USED: break; case CS35L41_INTERRUPT: using_irq = true; hw_cfg->gpio2.func = CS35L41_GPIO2_INT_OPEN_DRAIN; break; default: dev_err(cs35l41->dev, "Invalid GPIO2 function %d\n", hw_cfg->gpio2.func); return -EINVAL; } } irq_pol = cs35l41_gpio_config(cs35l41->regmap, hw_cfg); if (using_irq) cs35l41_configure_interrupt(cs35l41, irq_pol); return cs35l41_hda_channel_map(cs35l41->dev, 0, NULL, 1, &hw_cfg->spk_pos); } int cs35l41_get_speaker_id(struct device *dev, int amp_index, int num_amps, int fixed_gpio_id) { struct gpio_desc *speaker_id_desc; int speaker_id = -ENODEV; if (fixed_gpio_id >= 0) { dev_dbg(dev, "Found Fixed Speaker ID GPIO (index = %d)\n", fixed_gpio_id); speaker_id_desc = gpiod_get_index(dev, NULL, fixed_gpio_id, GPIOD_IN); if (IS_ERR(speaker_id_desc)) { speaker_id = PTR_ERR(speaker_id_desc); return speaker_id; } speaker_id = gpiod_get_value_cansleep(speaker_id_desc); gpiod_put(speaker_id_desc); dev_dbg(dev, "Speaker ID = %d\n", speaker_id); } else { int base_index; int gpios_per_amp; int count; int tmp; int i; count = gpiod_count(dev, "spk-id"); if (count > 0) { speaker_id = 0; gpios_per_amp = count / num_amps; base_index = gpios_per_amp * amp_index; if (count % num_amps) return -EINVAL; dev_dbg(dev, "Found %d Speaker ID GPIOs per Amp\n", gpios_per_amp); for (i = 0; i < gpios_per_amp; i++) { speaker_id_desc = gpiod_get_index(dev, "spk-id", i + base_index, GPIOD_IN); if (IS_ERR(speaker_id_desc)) { speaker_id = PTR_ERR(speaker_id_desc); break; } tmp = gpiod_get_value_cansleep(speaker_id_desc); gpiod_put(speaker_id_desc); if (tmp < 0) { speaker_id = tmp; break; } speaker_id |= tmp << i; } dev_dbg(dev, "Speaker ID = %d\n", speaker_id); } } return speaker_id; } static int cs35l41_hda_read_acpi(struct cs35l41_hda *cs35l41, const char *hid, int id) { struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg; u32 values[HDA_MAX_COMPONENTS]; struct acpi_device *adev; struct device *physdev; struct spi_device *spi; const char *sub; char *property; size_t nval; int i, ret; adev = acpi_dev_get_first_match_dev(hid, NULL, -1); if (!adev) { dev_err(cs35l41->dev, "Failed to find an ACPI device for %s\n", hid); return -ENODEV; } cs35l41->dacpi = adev; physdev = get_device(acpi_get_first_physical_node(adev)); sub = acpi_get_subsystem_id(ACPI_HANDLE(physdev)); if (IS_ERR(sub)) sub = NULL; cs35l41->acpi_subsystem_id = sub; ret = cs35l41_add_dsd_properties(cs35l41, physdev, id, hid); if (!ret) { dev_info(cs35l41->dev, "Using extra _DSD properties, bypassing _DSD in ACPI\n"); goto out; } property = "cirrus,dev-index"; ret = device_property_count_u32(physdev, property); if (ret <= 0) goto err; if (ret > ARRAY_SIZE(values)) { ret = -EINVAL; goto err; } nval = ret; ret = device_property_read_u32_array(physdev, property, values, nval); if (ret) goto err; cs35l41->index = -1; for (i = 0; i < nval; i++) { if (values[i] == id) { cs35l41->index = i; break; } } if (cs35l41->index == -1) { dev_err(cs35l41->dev, "No index found in %s\n", property); ret = -ENODEV; goto err; } /* To use the same release code for all laptop variants we can't use devm_ version of * gpiod_get here, as CLSA010* don't have a fully functional bios with an _DSD node */ cs35l41->reset_gpio = fwnode_gpiod_get_index(acpi_fwnode_handle(adev), "reset", cs35l41->index, GPIOD_OUT_LOW, "cs35l41-reset"); property = "cirrus,speaker-position"; ret = device_property_read_u32_array(physdev, property, values, nval); if (ret) goto err; hw_cfg->spk_pos = values[cs35l41->index]; cs35l41->channel_index = 0; for (i = 0; i < cs35l41->index; i++) if (values[i] == hw_cfg->spk_pos) cs35l41->channel_index++; property = "cirrus,gpio1-func"; ret = device_property_read_u32_array(physdev, property, values, nval); if (ret) goto err; hw_cfg->gpio1.func = values[cs35l41->index]; hw_cfg->gpio1.valid = true; property = "cirrus,gpio2-func"; ret = device_property_read_u32_array(physdev, property, values, nval); if (ret) goto err; hw_cfg->gpio2.func = values[cs35l41->index]; hw_cfg->gpio2.valid = true; property = "cirrus,boost-peak-milliamp"; ret = device_property_read_u32_array(physdev, property, values, nval); if (ret == 0) hw_cfg->bst_ipk = values[cs35l41->index]; else hw_cfg->bst_ipk = -1; property = "cirrus,boost-ind-nanohenry"; ret = device_property_read_u32_array(physdev, property, values, nval); if (ret == 0) hw_cfg->bst_ind = values[cs35l41->index]; else hw_cfg->bst_ind = -1; property = "cirrus,boost-cap-microfarad"; ret = device_property_read_u32_array(physdev, property, values, nval); if (ret == 0) hw_cfg->bst_cap = values[cs35l41->index]; else hw_cfg->bst_cap = -1; cs35l41->speaker_id = cs35l41_get_speaker_id(physdev, cs35l41->index, nval, -1); if (hw_cfg->bst_ind > 0 || hw_cfg->bst_cap > 0 || hw_cfg->bst_ipk > 0) hw_cfg->bst_type = CS35L41_INT_BOOST; else hw_cfg->bst_type = CS35L41_EXT_BOOST; hw_cfg->valid = true; out: put_device(physdev); cs35l41->bypass_fw = false; if (cs35l41->control_bus == SPI) { spi = to_spi_device(cs35l41->dev); if (spi->max_speed_hz < CS35L41_MAX_ACCEPTABLE_SPI_SPEED_HZ) { dev_warn(cs35l41->dev, "SPI speed is too slow to support firmware download: %d Hz.\n", spi->max_speed_hz); cs35l41->bypass_fw = true; } } return 0; err: dev_err(cs35l41->dev, "Failed property %s: %d\n", property, ret); hw_cfg->valid = false; hw_cfg->gpio1.valid = false; hw_cfg->gpio2.valid = false; acpi_dev_put(cs35l41->dacpi); put_device(physdev); return ret; } int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq, struct regmap *regmap, enum control_bus control_bus) { unsigned int regid, reg_revid; struct cs35l41_hda *cs35l41; int ret; BUILD_BUG_ON(ARRAY_SIZE(cs35l41_irqs) != ARRAY_SIZE(cs35l41_reg_irqs)); BUILD_BUG_ON(ARRAY_SIZE(cs35l41_irqs) != CS35L41_NUM_IRQ); if (IS_ERR(regmap)) return PTR_ERR(regmap); cs35l41 = devm_kzalloc(dev, sizeof(*cs35l41), GFP_KERNEL); if (!cs35l41) return -ENOMEM; cs35l41->dev = dev; cs35l41->irq = irq; cs35l41->regmap = regmap; cs35l41->control_bus = control_bus; dev_set_drvdata(dev, cs35l41); ret = cs35l41_hda_read_acpi(cs35l41, device_name, id); if (ret) return dev_err_probe(cs35l41->dev, ret, "Platform not supported\n"); if (IS_ERR(cs35l41->reset_gpio)) { ret = PTR_ERR(cs35l41->reset_gpio); cs35l41->reset_gpio = NULL; if (ret == -EBUSY) { dev_info(cs35l41->dev, "Reset line busy, assuming shared reset\n"); } else { dev_err_probe(cs35l41->dev, ret, "Failed to get reset GPIO\n"); goto err; } } if (cs35l41->reset_gpio) { gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); usleep_range(2000, 2100); gpiod_set_value_cansleep(cs35l41->reset_gpio, 1); } usleep_range(2000, 2100); regmap_write(cs35l41->regmap, CS35L41_SFT_RESET, CS35L41_SOFTWARE_RESET); usleep_range(2000, 2100); ret = cs35l41_wait_boot_done(cs35l41); if (ret) goto err; ret = cs35l41_verify_id(cs35l41, ®id, ®_revid); if (ret) goto err; ret = cs35l41_test_key_unlock(cs35l41->dev, cs35l41->regmap); if (ret) goto err; ret = cs35l41_register_errata_patch(cs35l41->dev, cs35l41->regmap, reg_revid); if (ret) goto err; ret = cs35l41_otp_unpack(cs35l41->dev, cs35l41->regmap); if (ret) { dev_err_probe(cs35l41->dev, ret, "OTP Unpack failed\n"); goto err; } ret = cs35l41_test_key_lock(cs35l41->dev, cs35l41->regmap); if (ret) goto err; ret = cs35l41_get_calibration(cs35l41); if (ret && ret != -ENOENT) goto err; cs35l41_mute(cs35l41->dev, true); INIT_WORK(&cs35l41->fw_load_work, cs35l41_fw_load_work); mutex_init(&cs35l41->fw_mutex); pm_runtime_set_autosuspend_delay(cs35l41->dev, 3000); pm_runtime_use_autosuspend(cs35l41->dev); pm_runtime_mark_last_busy(cs35l41->dev); pm_runtime_set_active(cs35l41->dev); pm_runtime_get_noresume(cs35l41->dev); pm_runtime_enable(cs35l41->dev); ret = cs35l41_hda_apply_properties(cs35l41); if (ret) goto err_pm; pm_runtime_put_autosuspend(cs35l41->dev); ret = component_add(cs35l41->dev, &cs35l41_hda_comp_ops); if (ret) { dev_err_probe(cs35l41->dev, ret, "Register component failed\n"); goto err_pm; } dev_info(cs35l41->dev, "Cirrus Logic CS35L41 (%x), Revision: %02X\n", regid, reg_revid); return 0; err_pm: pm_runtime_dont_use_autosuspend(cs35l41->dev); pm_runtime_disable(cs35l41->dev); pm_runtime_put_noidle(cs35l41->dev); err: if (cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type)) gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); gpiod_put(cs35l41->reset_gpio); gpiod_put(cs35l41->cs_gpio); acpi_dev_put(cs35l41->dacpi); kfree(cs35l41->acpi_subsystem_id); return ret; } EXPORT_SYMBOL_NS_GPL(cs35l41_hda_probe, SND_HDA_SCODEC_CS35L41); void cs35l41_hda_remove(struct device *dev) { struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); pm_runtime_get_sync(cs35l41->dev); pm_runtime_dont_use_autosuspend(cs35l41->dev); pm_runtime_disable(cs35l41->dev); if (cs35l41->halo_initialized) cs35l41_remove_dsp(cs35l41); component_del(cs35l41->dev, &cs35l41_hda_comp_ops); acpi_dev_put(cs35l41->dacpi); pm_runtime_put_noidle(cs35l41->dev); if (cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type)) gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); gpiod_put(cs35l41->reset_gpio); gpiod_put(cs35l41->cs_gpio); kfree(cs35l41->acpi_subsystem_id); } EXPORT_SYMBOL_NS_GPL(cs35l41_hda_remove, SND_HDA_SCODEC_CS35L41); const struct dev_pm_ops cs35l41_hda_pm_ops = { RUNTIME_PM_OPS(cs35l41_runtime_suspend, cs35l41_runtime_resume, cs35l41_runtime_idle) .prepare = cs35l41_system_suspend_prep, SYSTEM_SLEEP_PM_OPS(cs35l41_system_suspend, cs35l41_system_resume) }; EXPORT_SYMBOL_NS_GPL(cs35l41_hda_pm_ops, SND_HDA_SCODEC_CS35L41); MODULE_DESCRIPTION("CS35L41 HDA Driver"); MODULE_IMPORT_NS(SND_HDA_CS_DSP_CONTROLS); MODULE_IMPORT_NS(SND_SOC_CS_AMP_LIB); MODULE_AUTHOR("Lucas Tanure, Cirrus Logic Inc, "); MODULE_LICENSE("GPL"); MODULE_IMPORT_NS(FW_CS_DSP);