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ALSA: hda: cs35l41: Add support for CS35L41 in HDA systems 

Add support for CS35L41 using a new separated driver
that can be used in all upcoming designs

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20211217115708.882525-8-tanureal@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Lucas Tanure 2021-12-17 11:57:05 +00:00 коммит произвёл Takashi Iwai
Родитель 2aac550da3
Коммит 7b2f3eb492
8 изменённых файлов: 786 добавлений и 0 удалений
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2
MAINTAINERS
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@ -4511,10 +4511,12 @@ F: drivers/media/cec/i2c/ch7322.c
CIRRUS LOGIC AUDIO CODEC DRIVERS
M: James Schulman <james.schulman@cirrus.com>
M: David Rhodes <david.rhodes@cirrus.com>
M: Lucas Tanure <tanureal@opensource.cirrus.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
L: patches@opensource.cirrus.com
S: Maintained
F: Documentation/devicetree/bindings/sound/cirrus,cs*
F: sound/pci/hda/cs*
F: sound/soc/codecs/cs*
CIRRUS LOGIC DSP FIRMWARE DRIVER

29
sound/pci/hda/Kconfig
Просмотреть файл

@ -91,6 +91,35 @@ config SND_HDA_PATCH_LOADER
start up. The "patch" file can be specified via patch module
option, such as patch=hda-init.
config SND_HDA_SCODEC_CS35L41
tristate
config SND_HDA_SCODEC_CS35L41_I2C
tristate "Build CS35L41 HD-audio side codec support for I2C Bus"
depends on ACPI
select SND_HDA_GENERIC
select SND_SOC_CS35L41_LIB
select SND_HDA_SCODEC_CS35L41
help
Say Y or M here to include CS35L41 I2C HD-audio side codec support
in snd-hda-intel driver, such as ALC287.
comment "Set to Y if you want auto-loading the side codec driver"
depends on SND_HDA=y && SND_HDA_SCODEC_CS35L41_I2C=m
config SND_HDA_SCODEC_CS35L41_SPI
tristate "Build CS35L41 HD-audio codec support for SPI Bus"
depends on ACPI
select SND_HDA_GENERIC
select SND_SOC_CS35L41_LIB
select SND_HDA_SCODEC_CS35L41
help
Say Y or M here to include CS35L41 SPI HD-audio side codec support
in snd-hda-intel driver, such as ALC287.
comment "Set to Y if you want auto-loading the side codec driver"
depends on SND_HDA=y && SND_HDA_SCODEC_CS35L41_SPI=m
config SND_HDA_CODEC_REALTEK
tristate "Build Realtek HD-audio codec support"
select SND_HDA_GENERIC

10
sound/pci/hda/Makefile
Просмотреть файл

@ -27,6 +27,11 @@ snd-hda-codec-conexant-objs := patch_conexant.o
snd-hda-codec-via-objs := patch_via.o
snd-hda-codec-hdmi-objs := patch_hdmi.o hda_eld.o
# side codecs
snd-hda-scodec-cs35l41-objs := cs35l41_hda.o
snd-hda-scodec-cs35l41-i2c-objs := cs35l41_hda_i2c.o
snd-hda-scodec-cs35l41-spi-objs := cs35l41_hda_spi.o
# common driver
obj-$(CONFIG_SND_HDA) := snd-hda-codec.o
@ -45,6 +50,11 @@ obj-$(CONFIG_SND_HDA_CODEC_CONEXANT) += snd-hda-codec-conexant.o
obj-$(CONFIG_SND_HDA_CODEC_VIA) += snd-hda-codec-via.o
obj-$(CONFIG_SND_HDA_CODEC_HDMI) += snd-hda-codec-hdmi.o
# side codecs
obj-$(CONFIG_SND_HDA_SCODEC_CS35L41) += snd-hda-scodec-cs35l41.o
obj-$(CONFIG_SND_HDA_SCODEC_CS35L41_I2C) += snd-hda-scodec-cs35l41-i2c.o
obj-$(CONFIG_SND_HDA_SCODEC_CS35L41_SPI) += snd-hda-scodec-cs35l41-spi.o
# this must be the last entry after codec drivers;
# otherwise the codec patches won't be hooked before the PCI probe
# when built in kernel

527
sound/pci/hda/cs35l41_hda.c Normal file
Просмотреть файл

@ -0,0 +1,527 @@
// SPDX-License-Identifier: GPL-2.0
//
// cs35l41.c -- CS35l41 ALSA HDA audio driver
//
// Copyright 2021 Cirrus Logic, Inc.
//
// Author: Lucas Tanure <tanureal@opensource.cirrus.com>
#include <linux/acpi.h>
#include <linux/module.h>
#include <sound/hda_codec.h>
#include "hda_local.h"
#include "hda_auto_parser.h"
#include "hda_jack.h"
#include "hda_generic.h"
#include "hda_component.h"
#include "cs35l41_hda.h"
static const struct reg_sequence cs35l41_hda_config[] = {
{ CS35L41_PLL_CLK_CTRL, 0x00000430 }, //3200000Hz, BCLK Input, PLL_REFCLK_EN = 1
{ CS35L41_GLOBAL_CLK_CTRL, 0x00000003 }, //GLOBAL_FS = 48 kHz
{ CS35L41_SP_ENABLES, 0x00010000 }, //ASP_RX1_EN = 1
{ CS35L41_SP_RATE_CTRL, 0x00000021 }, //ASP_BCLK_FREQ = 3.072 MHz
{ CS35L41_SP_FORMAT, 0x20200200 }, //24 bits, I2S, BCLK Slave, FSYNC Slave
{ CS35L41_DAC_PCM1_SRC, 0x00000008 }, //DACPCM1_SRC = ASPRX1
{ CS35L41_AMP_DIG_VOL_CTRL, 0x00000000 }, //AMP_VOL_PCM 0.0 dB
{ CS35L41_AMP_GAIN_CTRL, 0x00000084 }, //AMP_GAIN_PCM 4.5 dB
{ CS35L41_PWR_CTRL2, 0x00000001 }, //AMP_EN = 1
};
static const struct reg_sequence cs35l41_hda_start_bst[] = {
{ CS35L41_PWR_CTRL2, 0x00000021 }, //BST_EN = 10, AMP_EN = 1
{ CS35L41_PWR_CTRL1, 0x00000001, 3000}, // set GLOBAL_EN = 1
};
static const struct reg_sequence cs35l41_hda_stop_bst[] = {
{ CS35L41_PWR_CTRL1, 0x00000000, 3000}, // set GLOBAL_EN = 0
};
// only on amps where GPIO1 is used to control ext. VSPK switch
static const struct reg_sequence cs35l41_start_ext_vspk[] = {
{ 0x00000040, 0x00000055 },
{ 0x00000040, 0x000000AA },
{ 0x00007438, 0x00585941 },
{ 0x00007414, 0x08C82222 },
{ 0x0000742C, 0x00000009 },
{ 0x00011008, 0x00008001 },
{ 0x0000742C, 0x0000000F },
{ 0x0000742C, 0x00000079 },
{ 0x00007438, 0x00585941 },
{ CS35L41_PWR_CTRL1, 0x00000001, 3000}, // set GLOBAL_EN = 1
{ 0x0000742C, 0x000000F9 },
{ 0x00007438, 0x00580941 },
{ 0x00000040, 0x000000CC },
{ 0x00000040, 0x00000033 },
};
//only on amps where GPIO1 is used to control ext. VSPK switch
static const struct reg_sequence cs35l41_stop_ext_vspk[] = {
{ 0x00000040, 0x00000055 },
{ 0x00000040, 0x000000AA },
{ 0x00007438, 0x00585941 },
{ 0x00002014, 0x00000000, 3000}, //set GLOBAL_EN = 0
{ 0x0000742C, 0x00000009 },
{ 0x00007438, 0x00580941 },
{ 0x00011008, 0x00000001 },
{ 0x0000393C, 0x000000C0, 6000},
{ 0x0000393C, 0x00000000 },
{ 0x00007414, 0x00C82222 },
{ 0x0000742C, 0x00000000 },
{ 0x00000040, 0x000000CC },
{ 0x00000040, 0x00000033 },
};
static const struct reg_sequence cs35l41_safe_to_active[] = {
{ 0x00000040, 0x00000055 },
{ 0x00000040, 0x000000AA },
{ 0x0000742C, 0x0000000F },
{ 0x0000742C, 0x00000079 },
{ 0x00007438, 0x00585941 },
{ CS35L41_PWR_CTRL1, 0x00000001, 2000 }, //GLOBAL_EN = 1
{ 0x0000742C, 0x000000F9 },
{ 0x00007438, 0x00580941 },
{ 0x00000040, 0x000000CC },
{ 0x00000040, 0x00000033 },
};
static const struct reg_sequence cs35l41_active_to_safe[] = {
{ 0x00000040, 0x00000055 },
{ 0x00000040, 0x000000AA },
{ 0x00007438, 0x00585941 },
{ CS35L41_AMP_DIG_VOL_CTRL, 0x0000A678 }, //AMP_VOL_PCM Mute
{ CS35L41_PWR_CTRL2, 0x00000000 }, //AMP_EN = 0
{ CS35L41_PWR_CTRL1, 0x00000000 },
{ 0x0000742C, 0x00000009, 2000 },
{ 0x00007438, 0x00580941 },
{ 0x00000040, 0x000000CC },
{ 0x00000040, 0x00000033 },
};
static const struct reg_sequence cs35l41_reset_to_safe[] = {
{ 0x00000040, 0x00000055 },
{ 0x00000040, 0x000000AA },
{ 0x00007438, 0x00585941 },
{ 0x00007414, 0x08C82222 },
{ 0x0000742C, 0x00000009 },
{ 0x00000040, 0x000000CC },
{ 0x00000040, 0x00000033 },
};
static const struct cs35l41_hda_reg_sequence cs35l41_hda_reg_seq_no_bst = {
.probe = cs35l41_reset_to_safe,
.num_probe = ARRAY_SIZE(cs35l41_reset_to_safe),
.open = cs35l41_hda_config,
.num_open = ARRAY_SIZE(cs35l41_hda_config),
.prepare = cs35l41_safe_to_active,
.num_prepare = ARRAY_SIZE(cs35l41_safe_to_active),
.cleanup = cs35l41_active_to_safe,
.num_cleanup = ARRAY_SIZE(cs35l41_active_to_safe),
};
static const struct cs35l41_hda_reg_sequence cs35l41_hda_reg_seq_ext_bst = {
.open = cs35l41_hda_config,
.num_open = ARRAY_SIZE(cs35l41_hda_config),
.prepare = cs35l41_start_ext_vspk,
.num_prepare = ARRAY_SIZE(cs35l41_start_ext_vspk),
.cleanup = cs35l41_stop_ext_vspk,
.num_cleanup = ARRAY_SIZE(cs35l41_stop_ext_vspk),
};
static const struct cs35l41_hda_reg_sequence cs35l41_hda_reg_seq_int_bst = {
.open = cs35l41_hda_config,
.num_open = ARRAY_SIZE(cs35l41_hda_config),
.prepare = cs35l41_hda_start_bst,
.num_prepare = ARRAY_SIZE(cs35l41_hda_start_bst),
.cleanup = cs35l41_hda_stop_bst,
.num_cleanup = ARRAY_SIZE(cs35l41_hda_stop_bst),
};
static void cs35l41_hda_playback_hook(struct device *dev, int action)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
const struct cs35l41_hda_reg_sequence *reg_seq = cs35l41->reg_seq;
struct regmap *reg = cs35l41->regmap;
int ret = 0;
switch (action) {
case HDA_GEN_PCM_ACT_OPEN:
if (reg_seq->open)
ret = regmap_multi_reg_write(reg, reg_seq->open, reg_seq->num_open);
break;
case HDA_GEN_PCM_ACT_PREPARE:
if (reg_seq->prepare)
ret = regmap_multi_reg_write(reg, reg_seq->prepare, reg_seq->num_prepare);
break;
case HDA_GEN_PCM_ACT_CLEANUP:
if (reg_seq->cleanup)
ret = regmap_multi_reg_write(reg, reg_seq->cleanup, reg_seq->num_cleanup);
break;
case HDA_GEN_PCM_ACT_CLOSE:
if (reg_seq->close)
ret = regmap_multi_reg_write(reg, reg_seq->close, reg_seq->num_close);
break;
}
if (ret)
dev_warn(cs35l41->dev, "Failed to apply multi reg write: %d\n", ret);
}
static int cs35l41_hda_channel_map(struct device *dev, unsigned int tx_num, unsigned int *tx_slot,
unsigned int rx_num, unsigned int *rx_slot)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
return cs35l41_set_channels(cs35l41->dev, cs35l41->regmap, tx_num, tx_slot, rx_num,
rx_slot);
}
static int cs35l41_hda_bind(struct device *dev, struct device *master, void *master_data)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
struct hda_component *comps = master_data;
if (comps && cs35l41->index >= 0 && cs35l41->index < HDA_MAX_COMPONENTS)
comps = &comps[cs35l41->index];
else
return -EINVAL;
if (!comps->dev) {
comps->dev = dev;
strscpy(comps->name, dev_name(dev), sizeof(comps->name));
comps->playback_hook = cs35l41_hda_playback_hook;
comps->set_channel_map = cs35l41_hda_channel_map;
return 0;
}
return -EBUSY;
}
static void cs35l41_hda_unbind(struct device *dev, struct device *master, void *master_data)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
struct hda_component *comps = master_data;
if (comps[cs35l41->index].dev == dev)
memset(&comps[cs35l41->index], 0, sizeof(*comps));
}
static const struct component_ops cs35l41_hda_comp_ops = {
.bind = cs35l41_hda_bind,
.unbind = cs35l41_hda_unbind,
};
static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41,
const struct cs35l41_hda_hw_config *hw_cfg)
{
bool internal_boost = false;
int ret;
if (!hw_cfg) {
cs35l41->reg_seq = &cs35l41_hda_reg_seq_no_bst;
return 0;
}
if (hw_cfg->bst_ind || hw_cfg->bst_cap || hw_cfg->bst_ipk)
internal_boost = true;
switch (hw_cfg->gpio1_func) {
case CS35l41_VSPK_SWITCH:
regmap_update_bits(cs35l41->regmap, CS35L41_GPIO_PAD_CONTROL,
CS35L41_GPIO1_CTRL_MASK, 1 << CS35L41_GPIO1_CTRL_SHIFT);
break;
case CS35l41_SYNC:
regmap_update_bits(cs35l41->regmap, CS35L41_GPIO_PAD_CONTROL,
CS35L41_GPIO1_CTRL_MASK, 2 << CS35L41_GPIO1_CTRL_SHIFT);
break;
}
switch (hw_cfg->gpio2_func) {
case CS35L41_INTERRUPT:
regmap_update_bits(cs35l41->regmap, CS35L41_GPIO_PAD_CONTROL,
CS35L41_GPIO2_CTRL_MASK, 2 << CS35L41_GPIO2_CTRL_SHIFT);
break;
}
if (internal_boost) {
cs35l41->reg_seq = &cs35l41_hda_reg_seq_int_bst;
if (!(hw_cfg->bst_ind && hw_cfg->bst_cap && hw_cfg->bst_ipk))
return -EINVAL;
ret = cs35l41_boost_config(cs35l41->dev, cs35l41->regmap,
hw_cfg->bst_ind, hw_cfg->bst_cap, hw_cfg->bst_ipk);
if (ret)
return ret;
} else {
cs35l41->reg_seq = &cs35l41_hda_reg_seq_ext_bst;
}
ret = cs35l41_hda_channel_map(cs35l41->dev, 0, NULL, 1, (unsigned int *)&hw_cfg->spk_pos);
if (ret)
return ret;
return 0;
}
static struct cs35l41_hda_hw_config *cs35l41_hda_read_acpi(struct cs35l41_hda *cs35l41,
const char *hid, int id)
{
struct cs35l41_hda_hw_config *hw_cfg;
u32 values[HDA_MAX_COMPONENTS];
struct acpi_device *adev;
struct device *acpi_dev;
char *property;
size_t nval;
int i, ret;
adev = acpi_dev_get_first_match_dev(hid, NULL, -1);
if (!adev) {
dev_err(cs35l41->dev, "Failed to find an ACPI device for %s\n", hid);
return ERR_PTR(-ENODEV);
}
acpi_dev = get_device(acpi_get_first_physical_node(adev));
acpi_dev_put(adev);
property = "cirrus,dev-index";
ret = device_property_count_u32(acpi_dev, property);
if (ret <= 0)
goto no_acpi_dsd;
if (ret > ARRAY_SIZE(values)) {
ret = -EINVAL;
goto err;
}
nval = ret;
ret = device_property_read_u32_array(acpi_dev, property, values, nval);
if (ret)
goto err;
cs35l41->index = -1;
for (i = 0; i < nval; i++) {
if (values[i] == id) {
cs35l41->index = i;
break;
}
}
if (cs35l41->index == -1) {
dev_err(cs35l41->dev, "No index found in %s\n", property);
ret = -ENODEV;
goto err;
}
/* No devm_ version as CLSA0100, in no_acpi_dsd case, can't use devm version */
cs35l41->reset_gpio = fwnode_gpiod_get_index(&adev->fwnode, "reset", cs35l41->index,
GPIOD_OUT_LOW, "cs35l41-reset");
hw_cfg = kzalloc(sizeof(*hw_cfg), GFP_KERNEL);
if (!hw_cfg) {
ret = -ENOMEM;
goto err;
}
property = "cirrus,speaker-position";
ret = device_property_read_u32_array(acpi_dev, property, values, nval);
if (ret)
goto err_free;
hw_cfg->spk_pos = values[cs35l41->index];
property = "cirrus,gpio1-func";
ret = device_property_read_u32_array(acpi_dev, property, values, nval);
if (ret)
goto err_free;
hw_cfg->gpio1_func = values[cs35l41->index];
property = "cirrus,gpio2-func";
ret = device_property_read_u32_array(acpi_dev, property, values, nval);
if (ret)
goto err_free;
hw_cfg->gpio2_func = values[cs35l41->index];
property = "cirrus,boost-peak-milliamp";
ret = device_property_read_u32_array(acpi_dev, property, values, nval);
if (ret == 0)
hw_cfg->bst_ipk = values[cs35l41->index];
property = "cirrus,boost-ind-nanohenry";
ret = device_property_read_u32_array(acpi_dev, property, values, nval);
if (ret == 0)
hw_cfg->bst_ind = values[cs35l41->index];
property = "cirrus,boost-cap-microfarad";
ret = device_property_read_u32_array(acpi_dev, property, values, nval);
if (ret == 0)
hw_cfg->bst_cap = values[cs35l41->index];
put_device(acpi_dev);
return hw_cfg;
err_free:
kfree(hw_cfg);
err:
put_device(acpi_dev);
dev_err(cs35l41->dev, "Failed property %s: %d\n", property, ret);
return ERR_PTR(ret);
no_acpi_dsd:
/*
* Device CLSA0100 doesn't have _DSD so a gpiod_get by the label reset won't work.
* And devices created by i2c-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
*/
if (strncmp(hid, "CLSA0100", 8) != 0)
return ERR_PTR(-EINVAL);
/* check I2C address to assign the index */
cs35l41->index = id == 0x40 ? 0 : 1;
cs35l41->reset_gpio = gpiod_get_index(acpi_dev, NULL, 0, GPIOD_OUT_HIGH);
cs35l41->vspk_always_on = true;
put_device(acpi_dev);
return NULL;
}
int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq,
struct regmap *regmap)
{
unsigned int int_sts, regid, reg_revid, mtl_revid, chipid, int_status;
struct cs35l41_hda_hw_config *acpi_hw_cfg;
struct cs35l41_hda *cs35l41;
int ret;
if (IS_ERR(regmap))
return PTR_ERR(regmap);
cs35l41 = devm_kzalloc(dev, sizeof(*cs35l41), GFP_KERNEL);
if (!cs35l41)
return -ENOMEM;
cs35l41->dev = dev;
cs35l41->irq = irq;
cs35l41->regmap = regmap;
dev_set_drvdata(dev, cs35l41);
acpi_hw_cfg = cs35l41_hda_read_acpi(cs35l41, device_name, id);
if (IS_ERR(acpi_hw_cfg))
return PTR_ERR(acpi_hw_cfg);
if (IS_ERR(cs35l41->reset_gpio)) {
ret = PTR_ERR(cs35l41->reset_gpio);
cs35l41->reset_gpio = NULL;
if (ret == -EBUSY) {
dev_info(cs35l41->dev, "Reset line busy, assuming shared reset\n");
} else {
if (ret != -EPROBE_DEFER)
dev_err(cs35l41->dev, "Failed to get reset GPIO: %d\n", ret);
goto err;
}
}
if (cs35l41->reset_gpio) {
usleep_range(2000, 2100);
gpiod_set_value_cansleep(cs35l41->reset_gpio, 1);
}
usleep_range(2000, 2100);
ret = regmap_read_poll_timeout(cs35l41->regmap, CS35L41_IRQ1_STATUS4, int_status,
int_status & CS35L41_OTP_BOOT_DONE, 1000, 100000);
if (ret) {
dev_err(cs35l41->dev, "Failed waiting for OTP_BOOT_DONE: %d\n", ret);
goto err;
}
ret = regmap_read(cs35l41->regmap, CS35L41_IRQ1_STATUS3, &int_sts);
if (ret || (int_sts & CS35L41_OTP_BOOT_ERR)) {
dev_err(cs35l41->dev, "OTP Boot error\n");
ret = -EIO;
goto err;
}
ret = regmap_read(cs35l41->regmap, CS35L41_DEVID, &regid);
if (ret) {
dev_err(cs35l41->dev, "Get Device ID failed: %d\n", ret);
goto err;
}
ret = regmap_read(cs35l41->regmap, CS35L41_REVID, &reg_revid);
if (ret) {
dev_err(cs35l41->dev, "Get Revision ID failed: %d\n", ret);
goto err;
}
mtl_revid = reg_revid & CS35L41_MTLREVID_MASK;
chipid = (mtl_revid % 2) ? CS35L41R_CHIP_ID : CS35L41_CHIP_ID;
if (regid != chipid) {
dev_err(cs35l41->dev, "CS35L41 Device ID (%X). Expected ID %X\n", regid, chipid);
ret = -ENODEV;
goto err;
}
ret = cs35l41_register_errata_patch(cs35l41->dev, cs35l41->regmap, reg_revid);
if (ret)
goto err;
ret = cs35l41_otp_unpack(cs35l41->dev, cs35l41->regmap);
if (ret) {
dev_err(cs35l41->dev, "OTP Unpack failed: %d\n", ret);
goto err;
}
ret = cs35l41_hda_apply_properties(cs35l41, acpi_hw_cfg);
if (ret)
goto err;
kfree(acpi_hw_cfg);
if (cs35l41->reg_seq->probe) {
ret = regmap_register_patch(cs35l41->regmap, cs35l41->reg_seq->probe,
cs35l41->reg_seq->num_probe);
if (ret) {
dev_err(cs35l41->dev, "Fail to apply probe reg patch: %d\n", ret);
goto err;
}
}
ret = component_add(cs35l41->dev, &cs35l41_hda_comp_ops);
if (ret) {
dev_err(cs35l41->dev, "Register component failed: %d\n", ret);
goto err;
}
dev_info(cs35l41->dev, "Cirrus Logic CS35L41 (%x), Revision: %02X\n", regid, reg_revid);
return 0;
err:
kfree(acpi_hw_cfg);
if (!cs35l41->vspk_always_on)
gpiod_set_value_cansleep(cs35l41->reset_gpio, 0);
gpiod_put(cs35l41->reset_gpio);
return ret;
}
EXPORT_SYMBOL_GPL(cs35l41_hda_probe);
int cs35l41_hda_remove(struct device *dev)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
component_del(cs35l41->dev, &cs35l41_hda_comp_ops);
if (!cs35l41->vspk_always_on)
gpiod_set_value_cansleep(cs35l41->reset_gpio, 0);
gpiod_put(cs35l41->reset_gpio);
return 0;
}
EXPORT_SYMBOL_GPL(cs35l41_hda_remove);
MODULE_DESCRIPTION("CS35L41 HDA Driver");
MODULE_AUTHOR("Lucas Tanure, Cirrus Logic Inc, <tanureal@opensource.cirrus.com>");
MODULE_LICENSE("GPL");

69
sound/pci/hda/cs35l41_hda.h Normal file
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/* SPDX-License-Identifier: GPL-2.0
*
* cs35l41_hda.h -- CS35L41 ALSA HDA audio driver
*
* Copyright 2021 Cirrus Logic, Inc.
*
* Author: Lucas Tanure <tanureal@opensource.cirrus.com>
*/
#ifndef __CS35L41_HDA_H__
#define __CS35L41_HDA_H__
#include <linux/regulator/consumer.h>
#include <linux/gpio/consumer.h>
#include <linux/device.h>
#include <sound/cs35l41.h>
enum cs35l41_hda_spk_pos {
CS35l41_LEFT,
CS35l41_RIGHT,
};
enum cs35l41_hda_gpio_function {
CS35L41_NOT_USED,
CS35l41_VSPK_SWITCH,
CS35L41_INTERRUPT,
CS35l41_SYNC,
};
struct cs35l41_hda_reg_sequence {
const struct reg_sequence *probe;
unsigned int num_probe;
const struct reg_sequence *open;
unsigned int num_open;
const struct reg_sequence *prepare;
unsigned int num_prepare;
const struct reg_sequence *cleanup;
unsigned int num_cleanup;
const struct reg_sequence *close;
unsigned int num_close;
};
struct cs35l41_hda_hw_config {
unsigned int spk_pos;
unsigned int gpio1_func;
unsigned int gpio2_func;
int bst_ind;
int bst_ipk;
int bst_cap;
};
struct cs35l41_hda {
struct device *dev;
struct regmap *regmap;
struct gpio_desc *reset_gpio;
const struct cs35l41_hda_reg_sequence *reg_seq;
int irq;
int index;
/* Don't put the AMP in reset of VSPK can not be turned off */
bool vspk_always_on;
};
int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq,
struct regmap *regmap);
int cs35l41_hda_remove(struct device *dev);
#endif /*__CS35L41_HDA_H__*/

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sound/pci/hda/cs35l41_hda_i2c.c Normal file
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// SPDX-License-Identifier: GPL-2.0
//
// cs35l41.c -- CS35l41 HDA I2C driver
//
// Copyright 2021 Cirrus Logic, Inc.
//
// Author: Lucas Tanure <tanureal@opensource.cirrus.com>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/acpi.h>
#include "cs35l41_hda.h"
static int cs35l41_hda_i2c_probe(struct i2c_client *clt, const struct i2c_device_id *id)
{
const char *device_name;
/* Compare against the device name so it works for I2C, normal ACPI
* and for ACPI by i2c-multi-instantiate matching cases
*/
if (strstr(dev_name(&clt->dev), "CLSA0100"))
device_name = "CLSA0100";
else if (strstr(dev_name(&clt->dev), "CSC3551"))
device_name = "CSC3551";
else
return -ENODEV;
return cs35l41_hda_probe(&clt->dev, device_name, clt->addr, clt->irq,
devm_regmap_init_i2c(clt, &cs35l41_regmap_i2c));
}
static int cs35l41_hda_i2c_remove(struct i2c_client *clt)
{
return cs35l41_hda_remove(&clt->dev);
}
static const struct i2c_device_id cs35l41_hda_i2c_id[] = {
{ "cs35l41-hda", 0 },
{}
};
#ifdef CONFIG_ACPI
static const struct acpi_device_id cs35l41_acpi_hda_match[] = {
{"CLSA0100", 0 },
{"CSC3551", 0 },
{ },
};
MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_hda_match);
#endif
static struct i2c_driver cs35l41_i2c_driver = {
.driver = {
.name = "cs35l41-hda",
.acpi_match_table = ACPI_PTR(cs35l41_acpi_hda_match),
},
.id_table = cs35l41_hda_i2c_id,
.probe = cs35l41_hda_i2c_probe,
.remove = cs35l41_hda_i2c_remove,
};
module_i2c_driver(cs35l41_i2c_driver);
MODULE_DESCRIPTION("HDA CS35L41 driver");
MODULE_AUTHOR("Lucas Tanure <tanureal@opensource.cirrus.com>");
MODULE_LICENSE("GPL");

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sound/pci/hda/cs35l41_hda_spi.c Normal file
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// SPDX-License-Identifier: GPL-2.0
//
// cs35l41.c -- CS35l41 HDA SPI driver
//
// Copyright 2021 Cirrus Logic, Inc.
//
// Author: Lucas Tanure <tanureal@opensource.cirrus.com>
#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/spi/spi.h>
#include "cs35l41_hda.h"
static int cs35l41_hda_spi_probe(struct spi_device *spi)
{
const char *device_name;
/* Compare against the device name so it works for SPI, normal ACPI
* and for ACPI by spi-multi-instantiate matching cases
*/
if (strstr(dev_name(&spi->dev), "CSC3551"))
device_name = "CSC3551";
else
return -ENODEV;
return cs35l41_hda_probe(&spi->dev, device_name, spi->chip_select, spi->irq,
devm_regmap_init_spi(spi, &cs35l41_regmap_spi));
}
static int cs35l41_hda_spi_remove(struct spi_device *spi)
{
return cs35l41_hda_remove(&spi->dev);
}
static const struct spi_device_id cs35l41_hda_spi_id[] = {
{ "cs35l41-hda", 0 },
{}
};
#ifdef CONFIG_ACPI
static const struct acpi_device_id cs35l41_acpi_hda_match[] = {
{ "CSC3551", 0 },
{},
};
MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_hda_match);
#endif
static struct spi_driver cs35l41_spi_driver = {
.driver = {
.name = "cs35l41_hda",
.acpi_match_table = ACPI_PTR(cs35l41_acpi_hda_match),
},
.id_table = cs35l41_hda_spi_id,
.probe = cs35l41_hda_spi_probe,
.remove = cs35l41_hda_spi_remove,
};
module_spi_driver(cs35l41_spi_driver);
MODULE_DESCRIPTION("HDA CS35L41 driver");
MODULE_AUTHOR("Lucas Tanure <tanureal@opensource.cirrus.com>");
MODULE_LICENSE("GPL");

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sound/pci/hda/hda_component.h Normal file
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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* HD audio Component Binding Interface
*
* Copyright (C) 2021 Cirrus Logic, Inc. and
* Cirrus Logic International Semiconductor Ltd.
*/
#include <linux/component.h>
#define HDA_MAX_COMPONENTS 4
#define HDA_MAX_NAME_SIZE 50
struct hda_component {
struct device *dev;
char name[HDA_MAX_NAME_SIZE];
void (*playback_hook)(struct device *dev, int action);
int (*set_channel_map)(struct device *dev, unsigned int rx_num, unsigned int *rx_slot,
unsigned int tx_num, unsigned int *tx_slot);
};