diff options
Diffstat (limited to '')
| -rw-r--r-- | sound/pci/hda/cs35l41_hda_property.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/sound/pci/hda/cs35l41_hda_property.c b/sound/pci/hda/cs35l41_hda_property.c new file mode 100644 index 000000000000..b62a4e6968e2 --- /dev/null +++ b/sound/pci/hda/cs35l41_hda_property.c @@ -0,0 +1,105 @@ +// 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/gpio/consumer.h> +#include <linux/string.h> +#include "cs35l41_hda_property.h" + +/* + * 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; +} + +/* + * 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; + cs35l41->reset_gpio = gpiod_get_index(physdev, NULL, 1, GPIOD_OUT_HIGH); + cs35l41->speaker_id = -ENOENT; + hw_cfg->spk_pos = cs35l41->index ? 1 : 0; // 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; + 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", "103C89C6", hp_vision_acpi_fix }, + {} +}; + +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 && + !strcmp(model->ssid, cs35l41->acpi_subsystem_id)))) + return model->add_prop(cs35l41, physdev, id, hid); + } + + return -ENOENT; +} |