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https://gitee.com/bianbu-linux/linux-6.6
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581523ee36
CS35L41 HDA driver requires ACPI to contain correct _DSD properties to correctly configure the device. Whilst the HP Zbook Fury 17 G9 contains valid _DSD properties, the boost type has been configured incorrectly in the _DSD for this laptop. We can override these properties to fix the boost type. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Link: https://lore.kernel.org/r/20230823143956.755758-1-sbinding@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// CS35L41 ALSA HDA Property driver
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//
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// Copyright 2023 Cirrus Logic, Inc.
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//
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// Author: Stefan Binding <sbinding@opensource.cirrus.com>
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#include <linux/gpio/consumer.h>
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#include <linux/string.h>
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#include "cs35l41_hda_property.h"
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/*
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* Device CLSA010(0/1) doesn't have _DSD so a gpiod_get by the label reset won't work.
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* And devices created by serial-multi-instantiate don't have their device struct
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* pointing to the correct fwnode, so acpi_dev must be used here.
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* And devm functions expect that the device requesting the resource has the correct
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* fwnode.
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*/
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static int lenovo_legion_no_acpi(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
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const char *hid)
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{
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struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
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/* check I2C address to assign the index */
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cs35l41->index = id == 0x40 ? 0 : 1;
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cs35l41->channel_index = 0;
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cs35l41->reset_gpio = gpiod_get_index(physdev, NULL, 0, GPIOD_OUT_HIGH);
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cs35l41->speaker_id = cs35l41_get_speaker_id(physdev, 0, 0, 2);
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hw_cfg->spk_pos = cs35l41->index;
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hw_cfg->gpio2.func = CS35L41_INTERRUPT;
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hw_cfg->gpio2.valid = true;
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hw_cfg->valid = true;
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if (strcmp(hid, "CLSA0100") == 0) {
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hw_cfg->bst_type = CS35L41_EXT_BOOST_NO_VSPK_SWITCH;
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} else if (strcmp(hid, "CLSA0101") == 0) {
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hw_cfg->bst_type = CS35L41_EXT_BOOST;
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hw_cfg->gpio1.func = CS35l41_VSPK_SWITCH;
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hw_cfg->gpio1.valid = true;
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}
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return 0;
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}
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/*
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* Device 103C89C6 does have _DSD, however it is setup to use the wrong boost type.
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* We can override the _DSD to correct the boost type here.
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* Since this laptop has valid ACPI, we do not need to handle cs-gpios, since that already exists
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* in the ACPI.
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*/
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static int hp_vision_acpi_fix(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
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const char *hid)
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{
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struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
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dev_info(cs35l41->dev, "Adding DSD properties for %s\n", cs35l41->acpi_subsystem_id);
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cs35l41->index = id;
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cs35l41->channel_index = 0;
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cs35l41->reset_gpio = gpiod_get_index(physdev, NULL, 1, GPIOD_OUT_HIGH);
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cs35l41->speaker_id = -ENOENT;
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hw_cfg->spk_pos = cs35l41->index ? 1 : 0; // right:left
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hw_cfg->gpio1.func = CS35L41_NOT_USED;
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hw_cfg->gpio1.valid = true;
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hw_cfg->gpio2.func = CS35L41_INTERRUPT;
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hw_cfg->gpio2.valid = true;
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hw_cfg->bst_type = CS35L41_INT_BOOST;
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hw_cfg->bst_ind = 1000;
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hw_cfg->bst_ipk = 4500;
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hw_cfg->bst_cap = 24;
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hw_cfg->valid = true;
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return 0;
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}
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struct cs35l41_prop_model {
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const char *hid;
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const char *ssid;
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int (*add_prop)(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
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const char *hid);
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};
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static const struct cs35l41_prop_model cs35l41_prop_model_table[] = {
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{ "CLSA0100", NULL, lenovo_legion_no_acpi },
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{ "CLSA0101", NULL, lenovo_legion_no_acpi },
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{ "CSC3551", "103C89C6", hp_vision_acpi_fix },
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{}
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};
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int cs35l41_add_dsd_properties(struct cs35l41_hda *cs35l41, struct device *physdev, int id,
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const char *hid)
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{
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const struct cs35l41_prop_model *model;
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for (model = cs35l41_prop_model_table; model->hid; model++) {
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if (!strcmp(model->hid, hid) &&
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(!model->ssid ||
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(cs35l41->acpi_subsystem_id &&
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!strcmp(model->ssid, cs35l41->acpi_subsystem_id))))
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return model->add_prop(cs35l41, physdev, id, hid);
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}
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return -ENOENT;
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}
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