sound/pci/hda/cs35l41_hda_property.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 //
 // CS35L41 ALSA HDA Property driver
 //
 // Copyright 2023 Cirrus Logic, Inc.
 //
 // Author: Stefan Binding <sbinding@opensource.cirrus.com>

 #include <linux/acpi.h>
 #include <linux/gpio/consumer.h>
 #include <linux/string.h>
 #include "cs35l41_hda_property.h"
 #include <linux/spi/spi.h>

 #define MAX_AMPS 4

 struct cs35l41_config {
 	const char *ssid;
 	int num_amps;
 	enum {
 		INTERNAL,
 		EXTERNAL
 	} boost_type;
 	u8 channel[MAX_AMPS];
 	int reset_gpio_index; /* -1 if no reset gpio */
 	int spkid_gpio_index; /* -1 if no spkid gpio */
 	int cs_gpio_index; /* -1 if no cs gpio, or cs-gpios already exists, max num amps == 2 */
 	int boost_ind_nanohenry; /* Required if boost_type == Internal */
 	int boost_peak_milliamp; /* Required if boost_type == Internal */
 	int boost_cap_microfarad; /* Required if boost_type == Internal */
 };

 static const struct cs35l41_config cs35l41_config_table[] = {
 	{ "10280B27", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
 	{ "10280B28", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
 	{ "10280BEB", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, -1, 0, 0, 0, 0 },
 	{ "10280C4D", 4, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, CS35L41_LEFT, CS35L41_RIGHT }, 0, 1, -1, 1000, 4500, 24 },
 /*
  * Device 103C89C6 does have _DSD, however it is setup to use the wrong boost type.
  * We can override the _DSD to correct the boost type here.
  * Since this laptop has valid ACPI, we do not need to handle cs-gpios, since that already exists
  * in the ACPI. The Reset GPIO is also valid, so we can use the Reset defined in _DSD.
  */
 	{ "103C89C6", 2, INTERNAL, { CS35L41_RIGHT, CS35L41_LEFT, 0, 0 }, -1, -1, -1, 1000, 4500, 24 },
 	{ "103C8A28", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8A29", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8A2A", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8A2B", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8A2C", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8A2D", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8A2E", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8A30", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8A31", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8BB3", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8BB4", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8BDF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8BE0", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8BE1", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8BE2", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8BE9", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8BDD", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8BDE", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8BE3", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8BE5", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8BE6", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "103C8B3A", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
 	{ "104312AF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
 	{ "10431433", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
 	{ "10431463", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
 	{ "10431473", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, -1, 0, 1000, 4500, 24 },
 	{ "10431483", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, -1, 0, 1000, 4500, 24 },
 	{ "10431493", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
 	{ "104314D3", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
 	{ "104314E3", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
 	{ "10431503", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
 	{ "10431533", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
 	{ "10431573", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
 	{ "10431663", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, -1, 0, 1000, 4500, 24 },
 	{ "10431683", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
 	{ "104316A3", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 0, 0, 0 },
 	{ "104316D3", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 0, 0, 0 },
 	{ "104316F3", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 0, 0, 0 },
 	{ "104317F3", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
 	{ "10431863", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
 	{ "104318D3", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
 	{ "10431C9F", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
 	{ "10431CAF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
 	{ "10431CCF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
 	{ "10431CDF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
 	{ "10431CEF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
 	{ "10431D1F", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
 	{ "10431DA2", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 0, 0, 0 },
 	{ "10431E02", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 0, 0, 0 },
 	{ "10431E12", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
 	{ "10431EE2", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, -1, -1, 0, 0, 0 },
 	{ "10431F12", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
 	{ "10431F1F", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, -1, 0, 0, 0, 0 },
 	{ "10431F62", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 0, 0, 0 },
 	{ "17AA386F", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, -1, -1, 0, 0, 0 },
 	{ "17AA38B4", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
 	{ "17AA38B5", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
 	{ "17AA38B6", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
 	{ "17AA38B7", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
 	{}
 };

 static int cs35l41_add_gpios(struct cs35l41_hda *cs35l41, struct device *physdev, int reset_gpio,
 			     int spkid_gpio, int cs_gpio_index, int num_amps)
 {
 	struct acpi_gpio_mapping *gpio_mapping = NULL;
 	struct acpi_gpio_params *reset_gpio_params = NULL;
 	struct acpi_gpio_params *spkid_gpio_params = NULL;
 	struct acpi_gpio_params *cs_gpio_params = NULL;
 	unsigned int num_entries = 0;
 	unsigned int reset_index, spkid_index, csgpio_index;
 	int i;

 	/*
 	 * GPIO Mapping only needs to be done once, since it would be available for subsequent amps
 	 */
 	if (cs35l41->dacpi->driver_gpios)
 		return 0;

 	if (reset_gpio >= 0) {
 		reset_index = num_entries;
 		num_entries++;
 	}

 	if (spkid_gpio >= 0) {
 		spkid_index = num_entries;
 		num_entries++;
 	}

 	if ((cs_gpio_index >= 0)  && (num_amps == 2)) {
 		csgpio_index = num_entries;
 		num_entries++;
 	}

 	if (!num_entries)
 		return 0;

 	/* must include termination entry */
 	num_entries++;

 	gpio_mapping = devm_kcalloc(physdev, num_entries, sizeof(struct acpi_gpio_mapping),
 				    GFP_KERNEL);

 	if (!gpio_mapping)
 		goto err;

 	if (reset_gpio >= 0) {
 		gpio_mapping[reset_index].name = "reset-gpios";
 		reset_gpio_params = devm_kcalloc(physdev, num_amps, sizeof(struct acpi_gpio_params),
 						 GFP_KERNEL);
 		if (!reset_gpio_params)
 			goto err;

 		for (i = 0; i < num_amps; i++)
 			reset_gpio_params[i].crs_entry_index = reset_gpio;

 		gpio_mapping[reset_index].data = reset_gpio_params;
 		gpio_mapping[reset_index].size = num_amps;
 	}

 	if (spkid_gpio >= 0) {
 		gpio_mapping[spkid_index].name = "spk-id-gpios";
 		spkid_gpio_params = devm_kcalloc(physdev, num_amps, sizeof(struct acpi_gpio_params),
 						 GFP_KERNEL);
 		if (!spkid_gpio_params)
 			goto err;

 		for (i = 0; i < num_amps; i++)
 			spkid_gpio_params[i].crs_entry_index = spkid_gpio;

 		gpio_mapping[spkid_index].data = spkid_gpio_params;
 		gpio_mapping[spkid_index].size = num_amps;
 	}

 	if ((cs_gpio_index >= 0) && (num_amps == 2)) {
 		gpio_mapping[csgpio_index].name = "cs-gpios";
 		/* only one GPIO CS is supported without using _DSD, obtained using index 0 */
 		cs_gpio_params = devm_kzalloc(physdev, sizeof(struct acpi_gpio_params), GFP_KERNEL);
 		if (!cs_gpio_params)
 			goto err;

 		cs_gpio_params->crs_entry_index = cs_gpio_index;

 		gpio_mapping[csgpio_index].data = cs_gpio_params;
 		gpio_mapping[csgpio_index].size = 1;
 	}

 	return devm_acpi_dev_add_driver_gpios(physdev, gpio_mapping);
 err:
 	devm_kfree(physdev, gpio_mapping);
 	devm_kfree(physdev, reset_gpio_params);
 	devm_kfree(physdev, spkid_gpio_params);
 	devm_kfree(physdev, cs_gpio_params);
 	return -ENOMEM;
 }

 static int generic_dsd_config(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
 			      const char *hid)
 {
 	struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
 	const struct cs35l41_config *cfg;
 	struct gpio_desc *cs_gpiod;
 	struct spi_device *spi;
 	bool dsd_found;
 	int ret;

 	for (cfg = cs35l41_config_table; cfg->ssid; cfg++) {
 		if (!strcasecmp(cfg->ssid, cs35l41->acpi_subsystem_id))
 			break;
 	}

 	if (!cfg->ssid)
 		return -ENOENT;

 	if (!cs35l41->dacpi || cs35l41->dacpi != ACPI_COMPANION(physdev)) {
 		dev_err(cs35l41->dev, "ACPI Device does not match, cannot override _DSD.\n");
 		return -ENODEV;
 	}

 	dev_info(cs35l41->dev, "Adding DSD properties for %s\n", cs35l41->acpi_subsystem_id);

 	dsd_found = acpi_dev_has_props(cs35l41->dacpi);

 	if (!dsd_found) {
 		ret = cs35l41_add_gpios(cs35l41, physdev, cfg->reset_gpio_index,
 						 cfg->spkid_gpio_index, cfg->cs_gpio_index,
 						 cfg->num_amps);
 		if (ret) {
 			dev_err(cs35l41->dev, "Error adding GPIO mapping: %d\n", ret);
 			return ret;
 		}
 	} else if (cfg->reset_gpio_index >= 0 || cfg->spkid_gpio_index >= 0) {
 		dev_warn(cs35l41->dev, "Cannot add Reset/Speaker ID/SPI CS GPIO Mapping, "
 			 "_DSD already exists.\n");
 	}

 	if (cs35l41->control_bus == SPI) {
 		cs35l41->index = id;

 		/*
 		 * Manually set the Chip Select for the second amp <cs_gpio_index> in the node.
 		 * This is only supported for systems with 2 amps, since we cannot expand the
 		 * default number of chip selects without using cs-gpios
 		 * The CS GPIO must be set high prior to communicating with the first amp (which
 		 * uses a native chip select), to ensure the second amp does not clash with the
 		 * first.
 		 */
 		if (IS_ENABLED(CONFIG_SPI) && cfg->cs_gpio_index >= 0) {
 			spi = to_spi_device(cs35l41->dev);

 			if (cfg->num_amps != 2) {
 				dev_warn(cs35l41->dev,
 					 "Cannot update SPI CS, Number of Amps (%d) != 2\n",
 					 cfg->num_amps);
 			} else if (dsd_found) {
 				dev_warn(cs35l41->dev,
 					"Cannot update SPI CS, _DSD already exists.\n");
 			} else {
 				/*
 				 * This is obtained using driver_gpios, since only one GPIO for CS
 				 * exists, this can be obtained using index 0.
 				 */
 				cs_gpiod = gpiod_get_index(physdev, "cs", 0, GPIOD_OUT_LOW);
 				if (IS_ERR(cs_gpiod)) {
 					dev_err(cs35l41->dev,
 						"Unable to get Chip Select GPIO descriptor\n");
 					return PTR_ERR(cs_gpiod);
 				}
 				if (id == 1) {
 					spi_set_csgpiod(spi, 0, cs_gpiod);
 					cs35l41->cs_gpio = cs_gpiod;
 				} else {
 					gpiod_set_value_cansleep(cs_gpiod, true);
 					gpiod_put(cs_gpiod);
 				}
 				spi_setup(spi);
 			}
 		}
 	} else {
 		if (cfg->num_amps > 2)
 			/*
 			 * i2c addresses for 3/4 amps are used in order: 0x40, 0x41, 0x42, 0x43,
 			 * subtracting 0x40 would give zero-based index
 			 */
 			cs35l41->index = id - 0x40;
 		else
 			/* i2c addr 0x40 for first amp (always), 0x41/0x42 for 2nd amp */
 			cs35l41->index = id == 0x40 ? 0 : 1;
 	}

 	if (cfg->num_amps == 3)
 		/* 3 amps means a center channel, so no duplicate channels */
 		cs35l41->channel_index = 0;
 	else
 		/*
 		 * if 4 amps, there are duplicate channels, so they need different indexes
 		 * if 2 amps, no duplicate channels, channel_index would be 0
 		 */
 		cs35l41->channel_index = cs35l41->index / 2;

 	cs35l41->reset_gpio = fwnode_gpiod_get_index(acpi_fwnode_handle(cs35l41->dacpi), "reset",
 						     cs35l41->index, GPIOD_OUT_LOW,
 						     "cs35l41-reset");
 	cs35l41->speaker_id = cs35l41_get_speaker_id(physdev, cs35l41->index, cfg->num_amps, -1);

 	hw_cfg->spk_pos = cfg->channel[cs35l41->index];

 	if (cfg->boost_type == INTERNAL) {
 		hw_cfg->bst_type = CS35L41_INT_BOOST;
 		hw_cfg->bst_ind = cfg->boost_ind_nanohenry;
 		hw_cfg->bst_ipk = cfg->boost_peak_milliamp;
 		hw_cfg->bst_cap = cfg->boost_cap_microfarad;
 		hw_cfg->gpio1.func = CS35L41_NOT_USED;
 		hw_cfg->gpio1.valid = true;
 	} else {
 		hw_cfg->bst_type = CS35L41_EXT_BOOST;
 		hw_cfg->bst_ind = -1;
 		hw_cfg->bst_ipk = -1;
 		hw_cfg->bst_cap = -1;
 		hw_cfg->gpio1.func = CS35l41_VSPK_SWITCH;
 		hw_cfg->gpio1.valid = true;
 	}

 	hw_cfg->gpio2.func = CS35L41_INTERRUPT;
 	hw_cfg->gpio2.valid = true;
 	hw_cfg->valid = true;

 	return 0;
 }

 /*
  * Device CLSA010(0/1) doesn't have _DSD so a gpiod_get by the label reset won't work.
  * And devices created by serial-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.
  */
 static int lenovo_legion_no_acpi(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
 				 const char *hid)
 {
 	struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;

 	/* check I2C address to assign the index */
 	cs35l41->index = id == 0x40 ? 0 : 1;
 	cs35l41->channel_index = 0;
 	cs35l41->reset_gpio = gpiod_get_index(physdev, NULL, 0, GPIOD_OUT_HIGH);
 	cs35l41->speaker_id = cs35l41_get_speaker_id(physdev, 0, 0, 2);
 	hw_cfg->spk_pos = cs35l41->index;
 	hw_cfg->gpio2.func = CS35L41_INTERRUPT;
 	hw_cfg->gpio2.valid = true;
 	hw_cfg->valid = true;

 	if (strcmp(hid, "CLSA0100") == 0) {
 		hw_cfg->bst_type = CS35L41_EXT_BOOST_NO_VSPK_SWITCH;
 	} else if (strcmp(hid, "CLSA0101") == 0) {
 		hw_cfg->bst_type = CS35L41_EXT_BOOST;
 		hw_cfg->gpio1.func = CS35l41_VSPK_SWITCH;
 		hw_cfg->gpio1.valid = true;
 	}

 	return 0;
 }

 struct cs35l41_prop_model {
 	const char *hid;
 	const char *ssid;
 	int (*add_prop)(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
 			const char *hid);
 };

 static const struct cs35l41_prop_model cs35l41_prop_model_table[] = {
 	{ "CLSA0100", NULL, lenovo_legion_no_acpi },
 	{ "CLSA0101", NULL, lenovo_legion_no_acpi },
 	{ "CSC3551", "10280B27", generic_dsd_config },
 	{ "CSC3551", "10280B28", generic_dsd_config },
 	{ "CSC3551", "10280BEB", generic_dsd_config },
 	{ "CSC3551", "10280C4D", generic_dsd_config },
 	{ "CSC3551", "103C89C6", generic_dsd_config },
 	{ "CSC3551", "103C8A28", generic_dsd_config },
 	{ "CSC3551", "103C8A29", generic_dsd_config },
 	{ "CSC3551", "103C8A2A", generic_dsd_config },
 	{ "CSC3551", "103C8A2B", generic_dsd_config },
 	{ "CSC3551", "103C8A2C", generic_dsd_config },
 	{ "CSC3551", "103C8A2D", generic_dsd_config },
 	{ "CSC3551", "103C8A2E", generic_dsd_config },
 	{ "CSC3551", "103C8A30", generic_dsd_config },
 	{ "CSC3551", "103C8A31", generic_dsd_config },
 	{ "CSC3551", "103C8BB3", generic_dsd_config },
 	{ "CSC3551", "103C8BB4", generic_dsd_config },
 	{ "CSC3551", "103C8BDF", generic_dsd_config },
 	{ "CSC3551", "103C8BE0", generic_dsd_config },
 	{ "CSC3551", "103C8BE1", generic_dsd_config },
 	{ "CSC3551", "103C8BE2", generic_dsd_config },
 	{ "CSC3551", "103C8BE9", generic_dsd_config },
 	{ "CSC3551", "103C8BDD", generic_dsd_config },
 	{ "CSC3551", "103C8BDE", generic_dsd_config },
 	{ "CSC3551", "103C8BE3", generic_dsd_config },
 	{ "CSC3551", "103C8BE5", generic_dsd_config },
 	{ "CSC3551", "103C8BE6", generic_dsd_config },
 	{ "CSC3551", "103C8B3A", generic_dsd_config },
 	{ "CSC3551", "104312AF", generic_dsd_config },
 	{ "CSC3551", "10431433", generic_dsd_config },
 	{ "CSC3551", "10431463", generic_dsd_config },
 	{ "CSC3551", "10431473", generic_dsd_config },
 	{ "CSC3551", "10431483", generic_dsd_config },
 	{ "CSC3551", "10431493", generic_dsd_config },
 	{ "CSC3551", "104314D3", generic_dsd_config },
 	{ "CSC3551", "104314E3", generic_dsd_config },
 	{ "CSC3551", "10431503", generic_dsd_config },
 	{ "CSC3551", "10431533", generic_dsd_config },
 	{ "CSC3551", "10431573", generic_dsd_config },
 	{ "CSC3551", "10431663", generic_dsd_config },
 	{ "CSC3551", "10431683", generic_dsd_config },
 	{ "CSC3551", "104316A3", generic_dsd_config },
 	{ "CSC3551", "104316D3", generic_dsd_config },
 	{ "CSC3551", "104316F3", generic_dsd_config },
 	{ "CSC3551", "104317F3", generic_dsd_config },
 	{ "CSC3551", "10431863", generic_dsd_config },
 	{ "CSC3551", "104318D3", generic_dsd_config },
 	{ "CSC3551", "10431C9F", generic_dsd_config },
 	{ "CSC3551", "10431CAF", generic_dsd_config },
 	{ "CSC3551", "10431CCF", generic_dsd_config },
 	{ "CSC3551", "10431CDF", generic_dsd_config },
 	{ "CSC3551", "10431CEF", generic_dsd_config },
 	{ "CSC3551", "10431D1F", generic_dsd_config },
 	{ "CSC3551", "10431DA2", generic_dsd_config },
 	{ "CSC3551", "10431E02", generic_dsd_config },
 	{ "CSC3551", "10431E12", generic_dsd_config },
 	{ "CSC3551", "10431EE2", generic_dsd_config },
 	{ "CSC3551", "10431F12", generic_dsd_config },
 	{ "CSC3551", "10431F1F", generic_dsd_config },
 	{ "CSC3551", "10431F62", generic_dsd_config },
 	{ "CSC3551", "17AA386F", generic_dsd_config },
 	{ "CSC3551", "17AA38B4", generic_dsd_config },
 	{ "CSC3551", "17AA38B5", generic_dsd_config },
 	{ "CSC3551", "17AA38B6", generic_dsd_config },
 	{ "CSC3551", "17AA38B7", generic_dsd_config },
 	{}
 };

 int cs35l41_add_dsd_properties(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
 			       const char *hid)
 {
 	const struct cs35l41_prop_model *model;

 	for (model = cs35l41_prop_model_table; model->hid; model++) {
 		if (!strcmp(model->hid, hid) &&
 		    (!model->ssid ||
 		     (cs35l41->acpi_subsystem_id &&
 		      !strcasecmp(model->ssid, cs35l41->acpi_subsystem_id))))
 			return model->add_prop(cs35l41, physdev, id, hid);
 	}

 	return -ENOENT;
 }
	// SPDX-License-Identifier: GPL-2.0
	//
	// CS35L41 ALSA HDA Property driver
	//
	// Copyright 2023 Cirrus Logic, Inc.
	//
	// Author: Stefan Binding <sbinding@opensource.cirrus.com>

	#include <linux/acpi.h>
	#include <linux/gpio/consumer.h>
	#include <linux/string.h>
	#include "cs35l41_hda_property.h"
	#include <linux/spi/spi.h>

	#define MAX_AMPS 4

	struct cs35l41_config {
	const char *ssid;
	int num_amps;
	enum {
	INTERNAL,
	EXTERNAL
	} boost_type;
	u8 channel[MAX_AMPS];
	int reset_gpio_index; /* -1 if no reset gpio */
	int spkid_gpio_index; /* -1 if no spkid gpio */
	int cs_gpio_index; /* -1 if no cs gpio, or cs-gpios already exists, max num amps == 2 */
	int boost_ind_nanohenry; /* Required if boost_type == Internal */
	int boost_peak_milliamp; /* Required if boost_type == Internal */
	int boost_cap_microfarad; /* Required if boost_type == Internal */
	};

	static const struct cs35l41_config cs35l41_config_table[] = {
	{ "10280B27", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
	{ "10280B28", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
	{ "10280BEB", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, -1, 0, 0, 0, 0 },
	{ "10280C4D", 4, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, CS35L41_LEFT, CS35L41_RIGHT }, 0, 1, -1, 1000, 4500, 24 },
	/*
	* Device 103C89C6 does have _DSD, however it is setup to use the wrong boost type.
	* We can override the _DSD to correct the boost type here.
	* Since this laptop has valid ACPI, we do not need to handle cs-gpios, since that already exists
	* in the ACPI. The Reset GPIO is also valid, so we can use the Reset defined in _DSD.
	*/
	{ "103C89C6", 2, INTERNAL, { CS35L41_RIGHT, CS35L41_LEFT, 0, 0 }, -1, -1, -1, 1000, 4500, 24 },
	{ "103C8A28", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8A29", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8A2A", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8A2B", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8A2C", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8A2D", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8A2E", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8A30", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8A31", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8BB3", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8BB4", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8BDF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8BE0", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8BE1", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8BE2", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8BE9", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8BDD", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8BDE", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8BE3", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8BE5", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8BE6", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "103C8B3A", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4100, 24 },
	{ "104312AF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
	{ "10431433", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
	{ "10431463", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
	{ "10431473", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, -1, 0, 1000, 4500, 24 },
	{ "10431483", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, -1, 0, 1000, 4500, 24 },
	{ "10431493", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
	{ "104314D3", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
	{ "104314E3", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
	{ "10431503", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
	{ "10431533", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
	{ "10431573", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
	{ "10431663", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, -1, 0, 1000, 4500, 24 },
	{ "10431683", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
	{ "104316A3", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 0, 0, 0 },
	{ "104316D3", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 0, 0, 0 },
	{ "104316F3", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 0, 0, 0 },
	{ "104317F3", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
	{ "10431863", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
	{ "104318D3", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
	{ "10431C9F", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
	{ "10431CAF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
	{ "10431CCF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
	{ "10431CDF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
	{ "10431CEF", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 1000, 4500, 24 },
	{ "10431D1F", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
	{ "10431DA2", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 0, 0, 0 },
	{ "10431E02", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 0, 0, 0 },
	{ "10431E12", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
	{ "10431EE2", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, -1, -1, 0, 0, 0 },
	{ "10431F12", 2, INTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 1000, 4500, 24 },
	{ "10431F1F", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, -1, 0, 0, 0, 0 },
	{ "10431F62", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 1, 2, 0, 0, 0, 0 },
	{ "17AA386F", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, -1, -1, 0, 0, 0 },
	{ "17AA38B4", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
	{ "17AA38B5", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
	{ "17AA38B6", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
	{ "17AA38B7", 2, EXTERNAL, { CS35L41_LEFT, CS35L41_RIGHT, 0, 0 }, 0, 1, -1, 0, 0, 0 },
	{}
	};

	static int cs35l41_add_gpios(struct cs35l41_hda cs35l41, struct device physdev, int reset_gpio,
	int spkid_gpio, int cs_gpio_index, int num_amps)
	{
	struct acpi_gpio_mapping *gpio_mapping = NULL;
	struct acpi_gpio_params *reset_gpio_params = NULL;
	struct acpi_gpio_params *spkid_gpio_params = NULL;
	struct acpi_gpio_params *cs_gpio_params = NULL;
	unsigned int num_entries = 0;
	unsigned int reset_index, spkid_index, csgpio_index;
	int i;

	/*
	* GPIO Mapping only needs to be done once, since it would be available for subsequent amps
	*/
	if (cs35l41->dacpi->driver_gpios)
	return 0;

	if (reset_gpio >= 0) {
	reset_index = num_entries;
	num_entries++;
	}

	if (spkid_gpio >= 0) {
	spkid_index = num_entries;
	num_entries++;
	}

	if ((cs_gpio_index >= 0) && (num_amps == 2)) {
	csgpio_index = num_entries;
	num_entries++;
	}

	if (!num_entries)
	return 0;

	/* must include termination entry */
	num_entries++;

	gpio_mapping = devm_kcalloc(physdev, num_entries, sizeof(struct acpi_gpio_mapping),
	GFP_KERNEL);

	if (!gpio_mapping)
	goto err;

	if (reset_gpio >= 0) {
	gpio_mapping[reset_index].name = "reset-gpios";
	reset_gpio_params = devm_kcalloc(physdev, num_amps, sizeof(struct acpi_gpio_params),
	GFP_KERNEL);
	if (!reset_gpio_params)
	goto err;

	for (i = 0; i < num_amps; i++)
	reset_gpio_params[i].crs_entry_index = reset_gpio;

	gpio_mapping[reset_index].data = reset_gpio_params;
	gpio_mapping[reset_index].size = num_amps;
	}

	if (spkid_gpio >= 0) {
	gpio_mapping[spkid_index].name = "spk-id-gpios";
	spkid_gpio_params = devm_kcalloc(physdev, num_amps, sizeof(struct acpi_gpio_params),
	GFP_KERNEL);
	if (!spkid_gpio_params)
	goto err;

	for (i = 0; i < num_amps; i++)
	spkid_gpio_params[i].crs_entry_index = spkid_gpio;

	gpio_mapping[spkid_index].data = spkid_gpio_params;
	gpio_mapping[spkid_index].size = num_amps;
	}

	if ((cs_gpio_index >= 0) && (num_amps == 2)) {
	gpio_mapping[csgpio_index].name = "cs-gpios";
	/* only one GPIO CS is supported without using _DSD, obtained using index 0 */
	cs_gpio_params = devm_kzalloc(physdev, sizeof(struct acpi_gpio_params), GFP_KERNEL);
	if (!cs_gpio_params)
	goto err;

	cs_gpio_params->crs_entry_index = cs_gpio_index;

	gpio_mapping[csgpio_index].data = cs_gpio_params;
	gpio_mapping[csgpio_index].size = 1;
	}

	return devm_acpi_dev_add_driver_gpios(physdev, gpio_mapping);
	err:
	devm_kfree(physdev, gpio_mapping);
	devm_kfree(physdev, reset_gpio_params);
	devm_kfree(physdev, spkid_gpio_params);
	devm_kfree(physdev, cs_gpio_params);
	return -ENOMEM;
	}

	static int generic_dsd_config(struct cs35l41_hda cs35l41, struct device physdev, int id,
	const char *hid)
	{
	struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
	const struct cs35l41_config *cfg;
	struct gpio_desc *cs_gpiod;
	struct spi_device *spi;
	bool dsd_found;
	int ret;

	for (cfg = cs35l41_config_table; cfg->ssid; cfg++) {
	if (!strcasecmp(cfg->ssid, cs35l41->acpi_subsystem_id))
	break;
	}

	if (!cfg->ssid)
	return -ENOENT;

	if (!cs35l41->dacpi \|\| cs35l41->dacpi != ACPI_COMPANION(physdev)) {
	dev_err(cs35l41->dev, "ACPI Device does not match, cannot override _DSD.\n");
	return -ENODEV;
	}

	dev_info(cs35l41->dev, "Adding DSD properties for %s\n", cs35l41->acpi_subsystem_id);

	dsd_found = acpi_dev_has_props(cs35l41->dacpi);

	if (!dsd_found) {
	ret = cs35l41_add_gpios(cs35l41, physdev, cfg->reset_gpio_index,
	cfg->spkid_gpio_index, cfg->cs_gpio_index,
	cfg->num_amps);
	if (ret) {
	dev_err(cs35l41->dev, "Error adding GPIO mapping: %d\n", ret);
	return ret;
	}
	} else if (cfg->reset_gpio_index >= 0 \|\| cfg->spkid_gpio_index >= 0) {
	dev_warn(cs35l41->dev, "Cannot add Reset/Speaker ID/SPI CS GPIO Mapping, "
	"_DSD already exists.\n");
	}

	if (cs35l41->control_bus == SPI) {
	cs35l41->index = id;

	/*
	* Manually set the Chip Select for the second amp <cs_gpio_index> in the node.
	* This is only supported for systems with 2 amps, since we cannot expand the
	* default number of chip selects without using cs-gpios
	* The CS GPIO must be set high prior to communicating with the first amp (which
	* uses a native chip select), to ensure the second amp does not clash with the
	* first.
	*/
	if (IS_ENABLED(CONFIG_SPI) && cfg->cs_gpio_index >= 0) {
	spi = to_spi_device(cs35l41->dev);

	if (cfg->num_amps != 2) {
	dev_warn(cs35l41->dev,
	"Cannot update SPI CS, Number of Amps (%d) != 2\n",
	cfg->num_amps);
	} else if (dsd_found) {
	dev_warn(cs35l41->dev,
	"Cannot update SPI CS, _DSD already exists.\n");
	} else {
	/*
	* This is obtained using driver_gpios, since only one GPIO for CS
	* exists, this can be obtained using index 0.
	*/
	cs_gpiod = gpiod_get_index(physdev, "cs", 0, GPIOD_OUT_LOW);
	if (IS_ERR(cs_gpiod)) {
	dev_err(cs35l41->dev,
	"Unable to get Chip Select GPIO descriptor\n");
	return PTR_ERR(cs_gpiod);
	}
	if (id == 1) {
	spi_set_csgpiod(spi, 0, cs_gpiod);
	cs35l41->cs_gpio = cs_gpiod;
	} else {
	gpiod_set_value_cansleep(cs_gpiod, true);
	gpiod_put(cs_gpiod);
	}
	spi_setup(spi);
	}
	}
	} else {
	if (cfg->num_amps > 2)
	/*
	* i2c addresses for 3/4 amps are used in order: 0x40, 0x41, 0x42, 0x43,
	* subtracting 0x40 would give zero-based index
	*/
	cs35l41->index = id - 0x40;
	else
	/* i2c addr 0x40 for first amp (always), 0x41/0x42 for 2nd amp */
	cs35l41->index = id == 0x40 ? 0 : 1;
	}

	if (cfg->num_amps == 3)
	/* 3 amps means a center channel, so no duplicate channels */
	cs35l41->channel_index = 0;
	else
	/*
	* if 4 amps, there are duplicate channels, so they need different indexes
	* if 2 amps, no duplicate channels, channel_index would be 0
	*/
	cs35l41->channel_index = cs35l41->index / 2;

	cs35l41->reset_gpio = fwnode_gpiod_get_index(acpi_fwnode_handle(cs35l41->dacpi), "reset",
	cs35l41->index, GPIOD_OUT_LOW,
	"cs35l41-reset");
	cs35l41->speaker_id = cs35l41_get_speaker_id(physdev, cs35l41->index, cfg->num_amps, -1);

	hw_cfg->spk_pos = cfg->channel[cs35l41->index];

	if (cfg->boost_type == INTERNAL) {
	hw_cfg->bst_type = CS35L41_INT_BOOST;
	hw_cfg->bst_ind = cfg->boost_ind_nanohenry;
	hw_cfg->bst_ipk = cfg->boost_peak_milliamp;
	hw_cfg->bst_cap = cfg->boost_cap_microfarad;
	hw_cfg->gpio1.func = CS35L41_NOT_USED;
	hw_cfg->gpio1.valid = true;
	} else {
	hw_cfg->bst_type = CS35L41_EXT_BOOST;
	hw_cfg->bst_ind = -1;
	hw_cfg->bst_ipk = -1;
	hw_cfg->bst_cap = -1;
	hw_cfg->gpio1.func = CS35l41_VSPK_SWITCH;
	hw_cfg->gpio1.valid = true;
	}

	hw_cfg->gpio2.func = CS35L41_INTERRUPT;
	hw_cfg->gpio2.valid = true;
	hw_cfg->valid = true;

	return 0;
	}

	/*
	* Device CLSA010(0/1) doesn't have _DSD so a gpiod_get by the label reset won't work.
	* And devices created by serial-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.
	*/
	static int lenovo_legion_no_acpi(struct cs35l41_hda cs35l41, struct device physdev, int id,
	const char *hid)
	{
	struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;

	/* check I2C address to assign the index */
	cs35l41->index = id == 0x40 ? 0 : 1;
	cs35l41->channel_index = 0;
	cs35l41->reset_gpio = gpiod_get_index(physdev, NULL, 0, GPIOD_OUT_HIGH);
	cs35l41->speaker_id = cs35l41_get_speaker_id(physdev, 0, 0, 2);
	hw_cfg->spk_pos = cs35l41->index;
	hw_cfg->gpio2.func = CS35L41_INTERRUPT;
	hw_cfg->gpio2.valid = true;
	hw_cfg->valid = true;

	if (strcmp(hid, "CLSA0100") == 0) {
	hw_cfg->bst_type = CS35L41_EXT_BOOST_NO_VSPK_SWITCH;
	} else if (strcmp(hid, "CLSA0101") == 0) {
	hw_cfg->bst_type = CS35L41_EXT_BOOST;
	hw_cfg->gpio1.func = CS35l41_VSPK_SWITCH;
	hw_cfg->gpio1.valid = true;
	}

	return 0;
	}

	struct cs35l41_prop_model {
	const char *hid;
	const char *ssid;
	int (add_prop)(struct cs35l41_hda cs35l41, struct device *physdev, int id,
	const char *hid);
	};

	static const struct cs35l41_prop_model cs35l41_prop_model_table[] = {
	{ "CLSA0100", NULL, lenovo_legion_no_acpi },
	{ "CLSA0101", NULL, lenovo_legion_no_acpi },
	{ "CSC3551", "10280B27", generic_dsd_config },
	{ "CSC3551", "10280B28", generic_dsd_config },
	{ "CSC3551", "10280BEB", generic_dsd_config },
	{ "CSC3551", "10280C4D", generic_dsd_config },
	{ "CSC3551", "103C89C6", generic_dsd_config },
	{ "CSC3551", "103C8A28", generic_dsd_config },
	{ "CSC3551", "103C8A29", generic_dsd_config },
	{ "CSC3551", "103C8A2A", generic_dsd_config },
	{ "CSC3551", "103C8A2B", generic_dsd_config },
	{ "CSC3551", "103C8A2C", generic_dsd_config },
	{ "CSC3551", "103C8A2D", generic_dsd_config },
	{ "CSC3551", "103C8A2E", generic_dsd_config },
	{ "CSC3551", "103C8A30", generic_dsd_config },
	{ "CSC3551", "103C8A31", generic_dsd_config },
	{ "CSC3551", "103C8BB3", generic_dsd_config },
	{ "CSC3551", "103C8BB4", generic_dsd_config },
	{ "CSC3551", "103C8BDF", generic_dsd_config },
	{ "CSC3551", "103C8BE0", generic_dsd_config },
	{ "CSC3551", "103C8BE1", generic_dsd_config },
	{ "CSC3551", "103C8BE2", generic_dsd_config },
	{ "CSC3551", "103C8BE9", generic_dsd_config },
	{ "CSC3551", "103C8BDD", generic_dsd_config },
	{ "CSC3551", "103C8BDE", generic_dsd_config },
	{ "CSC3551", "103C8BE3", generic_dsd_config },
	{ "CSC3551", "103C8BE5", generic_dsd_config },
	{ "CSC3551", "103C8BE6", generic_dsd_config },
	{ "CSC3551", "103C8B3A", generic_dsd_config },
	{ "CSC3551", "104312AF", generic_dsd_config },
	{ "CSC3551", "10431433", generic_dsd_config },
	{ "CSC3551", "10431463", generic_dsd_config },
	{ "CSC3551", "10431473", generic_dsd_config },
	{ "CSC3551", "10431483", generic_dsd_config },
	{ "CSC3551", "10431493", generic_dsd_config },
	{ "CSC3551", "104314D3", generic_dsd_config },
	{ "CSC3551", "104314E3", generic_dsd_config },
	{ "CSC3551", "10431503", generic_dsd_config },
	{ "CSC3551", "10431533", generic_dsd_config },
	{ "CSC3551", "10431573", generic_dsd_config },
	{ "CSC3551", "10431663", generic_dsd_config },
	{ "CSC3551", "10431683", generic_dsd_config },
	{ "CSC3551", "104316A3", generic_dsd_config },
	{ "CSC3551", "104316D3", generic_dsd_config },
	{ "CSC3551", "104316F3", generic_dsd_config },
	{ "CSC3551", "104317F3", generic_dsd_config },
	{ "CSC3551", "10431863", generic_dsd_config },
	{ "CSC3551", "104318D3", generic_dsd_config },
	{ "CSC3551", "10431C9F", generic_dsd_config },
	{ "CSC3551", "10431CAF", generic_dsd_config },
	{ "CSC3551", "10431CCF", generic_dsd_config },
	{ "CSC3551", "10431CDF", generic_dsd_config },
	{ "CSC3551", "10431CEF", generic_dsd_config },
	{ "CSC3551", "10431D1F", generic_dsd_config },
	{ "CSC3551", "10431DA2", generic_dsd_config },
	{ "CSC3551", "10431E02", generic_dsd_config },
	{ "CSC3551", "10431E12", generic_dsd_config },
	{ "CSC3551", "10431EE2", generic_dsd_config },
	{ "CSC3551", "10431F12", generic_dsd_config },
	{ "CSC3551", "10431F1F", generic_dsd_config },
	{ "CSC3551", "10431F62", generic_dsd_config },
	{ "CSC3551", "17AA386F", generic_dsd_config },
	{ "CSC3551", "17AA38B4", generic_dsd_config },
	{ "CSC3551", "17AA38B5", generic_dsd_config },
	{ "CSC3551", "17AA38B6", generic_dsd_config },
	{ "CSC3551", "17AA38B7", generic_dsd_config },
	{}
	};

	int cs35l41_add_dsd_properties(struct cs35l41_hda cs35l41, struct device physdev, int id,
	const char *hid)
	{
	const struct cs35l41_prop_model *model;

	for (model = cs35l41_prop_model_table; model->hid; model++) {
	if (!strcmp(model->hid, hid) &&
	(!model->ssid \|\|
	(cs35l41->acpi_subsystem_id &&
	!strcasecmp(model->ssid, cs35l41->acpi_subsystem_id))))
	return model->add_prop(cs35l41, physdev, id, hid);
	}

	return -ENOENT;
	}