| // SPDX-License-Identifier: GPL-2.0 |
| // |
| // CS35l41 ALSA HDA audio driver |
| // |
| // Copyright 2021 Cirrus Logic, Inc. |
| // |
| // Author: Lucas Tanure <tanureal@opensource.cirrus.com> |
| |
| #include <linux/acpi.h> |
| #include <linux/module.h> |
| #include <sound/hda_codec.h> |
| #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" |
| |
| static const struct reg_sequence cs35l41_hda_config[] = { |
| { CS35L41_PLL_CLK_CTRL, 0x00000430 }, // 3072000Hz, BCLK Input, PLL_REFCLK_EN = 1 |
| { 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_DAC_PCM1_SRC, 0x00000008 }, // DACPCM1_SRC = ASPRX1 |
| { CS35L41_AMP_DIG_VOL_CTRL, 0x00000000 }, // 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_VOL_PCM Mute |
| }; |
| |
| /* 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_playback_hook(struct device *dev, int action) |
| { |
| struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev); |
| struct regmap *reg = cs35l41->regmap; |
| int ret = 0; |
| |
| switch (action) { |
| case HDA_GEN_PCM_ACT_OPEN: |
| regmap_multi_reg_write(reg, cs35l41_hda_config, ARRAY_SIZE(cs35l41_hda_config)); |
| ret = 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); |
| break; |
| case HDA_GEN_PCM_ACT_PREPARE: |
| ret = cs35l41_global_enable(reg, cs35l41->hw_cfg.bst_type, 1); |
| break; |
| case HDA_GEN_PCM_ACT_CLEANUP: |
| regmap_multi_reg_write(reg, cs35l41_hda_mute, ARRAY_SIZE(cs35l41_hda_mute)); |
| ret = cs35l41_global_enable(reg, cs35l41->hw_cfg.bst_type, 0); |
| break; |
| case HDA_GEN_PCM_ACT_CLOSE: |
| ret = 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); |
| cs35l41_irq_release(cs35l41); |
| break; |
| default: |
| dev_warn(cs35l41->dev, "Playback action not supported: %d\n", action); |
| break; |
| } |
| |
| if (ret) |
| dev_err(cs35l41->dev, "Regmap access fail: %d\n", ret); |
| } |
| |
| 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_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; |
| |
| if (!comps || cs35l41->index < 0 || cs35l41->index >= HDA_MAX_COMPONENTS) |
| return -EINVAL; |
| |
| comps = &comps[cs35l41->index]; |
| if (comps->dev) |
| return -EBUSY; |
| |
| comps->dev = dev; |
| strscpy(comps->name, dev_name(dev), sizeof(comps->name)); |
| comps->playback_hook = cs35l41_hda_playback_hook; |
| |
| return 0; |
| } |
| |
| 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; |
| |
| if (comps[cs35l41->index].dev == dev) |
| memset(&comps[cs35l41->index], 0, sizeof(*comps)); |
| } |
| |
| 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 const 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), |
| }; |
| |
| 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, irq_pol; |
| int ret; |
| int i; |
| |
| 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; |
| 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 (cs35l41->irq && using_irq) { |
| 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) |
| return ret; |
| |
| for (i = 0; i < ARRAY_SIZE(cs35l41_irqs); i++) { |
| irq = regmap_irq_get_virq(cs35l41->irq_data, cs35l41_irqs[i].irq); |
| if (irq < 0) |
| return irq; |
| |
| 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) |
| return ret; |
| } |
| } |
| |
| return cs35l41_hda_channel_map(cs35l41->dev, 0, NULL, 1, &hw_cfg->spk_pos); |
| } |
| |
| 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; |
| 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; |
| } |
| |
| physdev = get_device(acpi_get_first_physical_node(adev)); |
| acpi_dev_put(adev); |
| |
| property = "cirrus,dev-index"; |
| ret = device_property_count_u32(physdev, property); |
| if (ret <= 0) |
| goto no_acpi_dsd; |
| |
| 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(&adev->fwnode, "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; |
| |
| 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; |
| put_device(physdev); |
| |
| return 0; |
| |
| err: |
| put_device(physdev); |
| dev_err(cs35l41->dev, "Failed property %s: %d\n", property, ret); |
| |
| return ret; |
| |
| no_acpi_dsd: |
| /* |
| * Device CLSA0100 doesn't have _DSD so a gpiod_get by the label reset won't work. |
| * And devices created by i2c-multi-instantiate don't have their device struct pointing to |
| * the correct fwnode, so acpi_dev must be used here. |
| * And devm functions expect that the device requesting the resource has the correct |
| * fwnode. |
| */ |
| if (strncmp(hid, "CLSA0100", 8) != 0) |
| return -EINVAL; |
| |
| /* check I2C address to assign the index */ |
| cs35l41->index = id == 0x40 ? 0 : 1; |
| cs35l41->hw_cfg.spk_pos = cs35l41->index; |
| cs35l41->channel_index = 0; |
| cs35l41->reset_gpio = gpiod_get_index(physdev, NULL, 0, GPIOD_OUT_HIGH); |
| cs35l41->hw_cfg.bst_type = CS35L41_EXT_BOOST_NO_VSPK_SWITCH; |
| hw_cfg->gpio2.func = CS35L41_GPIO2_INT_OPEN_DRAIN; |
| hw_cfg->gpio2.valid = true; |
| cs35l41->hw_cfg.valid = true; |
| put_device(physdev); |
| |
| return 0; |
| } |
| |
| int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq, |
| struct regmap *regmap) |
| { |
| unsigned int int_sts, regid, reg_revid, mtl_revid, chipid, int_status; |
| 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; |
| dev_set_drvdata(dev, cs35l41); |
| |
| ret = cs35l41_hda_read_acpi(cs35l41, device_name, id); |
| if (ret) { |
| dev_err_probe(cs35l41->dev, ret, "Platform not supported %d\n", ret); |
| return ret; |
| } |
| |
| 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: %d\n", ret); |
| goto err; |
| } |
| } |
| if (cs35l41->reset_gpio) { |
| usleep_range(2000, 2100); |
| gpiod_set_value_cansleep(cs35l41->reset_gpio, 1); |
| } |
| |
| usleep_range(2000, 2100); |
| |
| 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: %d\n", ret); |
| goto err; |
| } |
| |
| ret = regmap_read(cs35l41->regmap, CS35L41_IRQ1_STATUS3, &int_sts); |
| if (ret || (int_sts & CS35L41_OTP_BOOT_ERR)) { |
| dev_err(cs35l41->dev, "OTP Boot status %x error: %d\n", |
| int_sts & CS35L41_OTP_BOOT_ERR, ret); |
| ret = -EIO; |
| goto err; |
| } |
| |
| ret = regmap_read(cs35l41->regmap, CS35L41_DEVID, ®id); |
| if (ret) { |
| dev_err(cs35l41->dev, "Get Device ID failed: %d\n", ret); |
| goto err; |
| } |
| |
| ret = regmap_read(cs35l41->regmap, CS35L41_REVID, ®_revid); |
| if (ret) { |
| dev_err(cs35l41->dev, "Get Revision ID failed: %d\n", ret); |
| goto err; |
| } |
| |
| 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); |
| ret = -ENODEV; |
| 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(cs35l41->dev, "OTP Unpack failed: %d\n", ret); |
| goto err; |
| } |
| |
| ret = cs35l41_test_key_lock(cs35l41->dev, cs35l41->regmap); |
| if (ret) |
| goto err; |
| |
| ret = cs35l41_hda_apply_properties(cs35l41); |
| if (ret) |
| goto err; |
| |
| ret = component_add(cs35l41->dev, &cs35l41_hda_comp_ops); |
| if (ret) { |
| dev_err(cs35l41->dev, "Register component failed: %d\n", ret); |
| goto err; |
| } |
| |
| dev_info(cs35l41->dev, "Cirrus Logic CS35L41 (%x), Revision: %02X\n", regid, reg_revid); |
| |
| return 0; |
| |
| 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); |
| |
| 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); |
| |
| component_del(cs35l41->dev, &cs35l41_hda_comp_ops); |
| |
| if (cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type)) |
| gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); |
| gpiod_put(cs35l41->reset_gpio); |
| } |
| EXPORT_SYMBOL_NS_GPL(cs35l41_hda_remove, SND_HDA_SCODEC_CS35L41); |
| |
| MODULE_DESCRIPTION("CS35L41 HDA Driver"); |
| MODULE_AUTHOR("Lucas Tanure, Cirrus Logic Inc, <tanureal@opensource.cirrus.com>"); |
| MODULE_LICENSE("GPL"); |