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// 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;
}
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