This make use of the CS35L41 HDA Property framework, which supports laptops which do not have the _DSD properties in their ACPI.
Add configuration table to be able to use a generic function which allows laptops to be supported just by adding an entry into the table.
Use configuration table function for existing system 103C89C6.
Signed-off-by: Stefan Binding sbinding@opensource.cirrus.com --- sound/pci/hda/cs35l41_hda.c | 2 + sound/pci/hda/cs35l41_hda.h | 5 +- sound/pci/hda/cs35l41_hda_property.c | 304 +++++++++++++++++++++++---- 3 files changed, 269 insertions(+), 42 deletions(-)
diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c index cbd7d8badf91..92ca2b3b6c92 100644 --- a/sound/pci/hda/cs35l41_hda.c +++ b/sound/pci/hda/cs35l41_hda.c @@ -1826,6 +1826,7 @@ int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int i 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);
@@ -1853,6 +1854,7 @@ void cs35l41_hda_remove(struct device *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); diff --git a/sound/pci/hda/cs35l41_hda.h b/sound/pci/hda/cs35l41_hda.h index ce3f2bb6ffd0..3d925d677213 100644 --- a/sound/pci/hda/cs35l41_hda.h +++ b/sound/pci/hda/cs35l41_hda.h @@ -35,8 +35,8 @@ struct cs35l41_amp_efi_data { } __packed;
enum cs35l41_hda_spk_pos { - CS35l41_LEFT, - CS35l41_RIGHT, + CS35L41_LEFT, + CS35L41_RIGHT, };
enum cs35l41_hda_gpio_function { @@ -50,6 +50,7 @@ struct cs35l41_hda { struct device *dev; struct regmap *regmap; struct gpio_desc *reset_gpio; + struct gpio_desc *cs_gpio; struct cs35l41_hw_cfg hw_cfg; struct hda_codec *codec;
diff --git a/sound/pci/hda/cs35l41_hda_property.c b/sound/pci/hda/cs35l41_hda_property.c index c83328971728..f90423ded85d 100644 --- a/sound/pci/hda/cs35l41_hda_property.c +++ b/sound/pci/hda/cs35l41_hda_property.c @@ -6,9 +6,271 @@ // // 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; + enum { + SPI, + I2C + } bus; + 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[] = { +/* + * 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", SPI, 2, INTERNAL, { CS35L41_RIGHT, CS35L41_LEFT, 0, 0 }, -1, -1, -1, 1000, 4500, 24 }, + {} +}; + +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; + struct acpi_gpio_params *reset_gpio_params; + struct acpi_gpio_params *spkid_gpio_params; + struct acpi_gpio_params *cs_gpio_params; + 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 (cfg->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 (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. @@ -43,44 +305,6 @@ static int lenovo_legion_no_acpi(struct cs35l41_hda *cs35l41, struct device *phy return 0; }
-/* - * 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. - */ -static int hp_vision_acpi_fix(struct cs35l41_hda *cs35l41, struct device *physdev, int id, - const char *hid) -{ - struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg; - - dev_info(cs35l41->dev, "Adding DSD properties for %s\n", cs35l41->acpi_subsystem_id); - - cs35l41->index = id; - cs35l41->channel_index = 0; - - /* - * This system has _DSD, it just contains an error, so we can still get the reset using - * the "reset" label. - */ - cs35l41->reset_gpio = fwnode_gpiod_get_index(acpi_fwnode_handle(cs35l41->dacpi), "reset", - cs35l41->index, GPIOD_OUT_LOW, - "cs35l41-reset"); - cs35l41->speaker_id = -ENOENT; - hw_cfg->spk_pos = cs35l41->index ? 0 : 1; // right:left - hw_cfg->gpio1.func = CS35L41_NOT_USED; - hw_cfg->gpio1.valid = true; - hw_cfg->gpio2.func = CS35L41_INTERRUPT; - hw_cfg->gpio2.valid = true; - hw_cfg->bst_type = CS35L41_INT_BOOST; - hw_cfg->bst_ind = 1000; - hw_cfg->bst_ipk = 4500; - hw_cfg->bst_cap = 24; - hw_cfg->valid = true; - - return 0; -} - struct cs35l41_prop_model { const char *hid; const char *ssid; @@ -91,7 +315,7 @@ struct cs35l41_prop_model { static const struct cs35l41_prop_model cs35l41_prop_model_table[] = { { "CLSA0100", NULL, lenovo_legion_no_acpi }, { "CLSA0101", NULL, lenovo_legion_no_acpi }, - { "CSC3551", "103C89C6", hp_vision_acpi_fix }, + { "CSC3551", "103C89C6", generic_dsd_config }, {} };
@@ -104,7 +328,7 @@ int cs35l41_add_dsd_properties(struct cs35l41_hda *cs35l41, struct device *physd if (!strcmp(model->hid, hid) && (!model->ssid || (cs35l41->acpi_subsystem_id && - !strcmp(model->ssid, cs35l41->acpi_subsystem_id)))) + !strcasecmp(model->ssid, cs35l41->acpi_subsystem_id)))) return model->add_prop(cs35l41, physdev, id, hid); }