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Commit 8c286a0f authored by Lucas Tanure's avatar Lucas Tanure Committed by Takashi Iwai
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ALSA: hda: cs35l41: Tidyup code 

Clean up and simplify cs35l41_hda_bind function
Signed-off-by: default avatarLucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220117160830.709403-6-tanureal@opensource.cirrus.comSigned-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent a025df02
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Showing with 49 additions and 54 deletions
sound/pci/hda/cs35l41_hda.c
View file @ 8c286a0f
// SPDX-License-Identifier: GPL-2.0
//
// cs35l41.c -- CS35l41 ALSA HDA audio driver
// CS35l41 ALSA HDA audio driver
//
// Copyright 2021 Cirrus Logic, Inc.
//
......@@ -17,19 +17,19 @@
#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
{ 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_CTRL2, 0x00000021 }, // BST_EN = 10, AMP_EN = 1
{ CS35L41_PWR_CTRL1, 0x00000001, 3000}, // set GLOBAL_EN = 1
};
......@@ -60,7 +60,7 @@ static const struct reg_sequence cs35l41_stop_ext_vspk[] = {
{ 0x00000040, 0x00000055 },
{ 0x00000040, 0x000000AA },
{ 0x00007438, 0x00585941 },
{ 0x00002014, 0x00000000, 3000}, //set GLOBAL_EN = 0
{ 0x00002014, 0x00000000, 3000}, // set GLOBAL_EN = 0
{ 0x0000742C, 0x00000009 },
{ 0x00007438, 0x00580941 },
{ 0x00011008, 0x00000001 },
......@@ -78,7 +78,7 @@ static const struct reg_sequence cs35l41_safe_to_active[] = {
{ 0x0000742C, 0x0000000F },
{ 0x0000742C, 0x00000079 },
{ 0x00007438, 0x00585941 },
{ CS35L41_PWR_CTRL1, 0x00000001, 2000 }, //GLOBAL_EN = 1
{ CS35L41_PWR_CTRL1, 0x00000001, 2000 }, // GLOBAL_EN = 1
{ 0x0000742C, 0x000000F9 },
{ 0x00007438, 0x00580941 },
{ 0x00000040, 0x000000CC },
......@@ -89,8 +89,8 @@ 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_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 },
......@@ -168,7 +168,6 @@ static void cs35l41_hda_playback_hook(struct device *dev, int action)
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,
......@@ -185,20 +184,19 @@ static int cs35l41_hda_bind(struct device *dev, struct device *master, void *mas
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
if (!comps || cs35l41->index < 0 || cs35l41->index >= HDA_MAX_COMPONENTS)
return -EINVAL;
if (!comps->dev) {
comps = &comps[cs35l41->index];
if (comps->dev)
return -EBUSY;
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;
return 0;
}
static void cs35l41_hda_unbind(struct device *dev, struct device *master, void *master_data)
......@@ -269,11 +267,7 @@ static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41,
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;
return cs35l41_hda_channel_map(cs35l41->dev, 0, NULL, 1, (unsigned int *)&hw_cfg->spk_pos);
}
static struct cs35l41_hda_hw_config *cs35l41_hda_read_acpi(struct cs35l41_hda *cs35l41,
......@@ -282,7 +276,7 @@ static struct cs35l41_hda_hw_config *cs35l41_hda_read_acpi(struct cs35l41_hda *c
struct cs35l41_hda_hw_config *hw_cfg;
u32 values[HDA_MAX_COMPONENTS];
struct acpi_device *adev;
struct device *acpi_dev;
struct device *physdev;
char *property;
size_t nval;
int i, ret;
......@@ -293,11 +287,11 @@ static struct cs35l41_hda_hw_config *cs35l41_hda_read_acpi(struct cs35l41_hda *c
return ERR_PTR(-ENODEV);
}
acpi_dev = get_device(acpi_get_first_physical_node(adev));
physdev = get_device(acpi_get_first_physical_node(adev));
acpi_dev_put(adev);
property = "cirrus,dev-index";
ret = device_property_count_u32(acpi_dev, property);
ret = device_property_count_u32(physdev, property);
if (ret <= 0)
goto no_acpi_dsd;
......@@ -307,7 +301,7 @@ static struct cs35l41_hda_hw_config *cs35l41_hda_read_acpi(struct cs35l41_hda *c
}
nval = ret;
ret = device_property_read_u32_array(acpi_dev, property, values, nval);
ret = device_property_read_u32_array(physdev, property, values, nval);
if (ret)
goto err;
......@@ -324,7 +318,9 @@ static struct cs35l41_hda_hw_config *cs35l41_hda_read_acpi(struct cs35l41_hda *c
goto err;
}
/* No devm_ version as CLSA0100, in no_acpi_dsd case, can't use devm version */
/* To use the same release code for all laptop variants we can't use devm_ version of
* gpiod_get here, as CLSA010* don't have a fully functional bios with an _DSD node
*/
cs35l41->reset_gpio = fwnode_gpiod_get_index(&adev->fwnode, "reset", cs35l41->index,
GPIOD_OUT_LOW, "cs35l41-reset");
......@@ -335,46 +331,46 @@ static struct cs35l41_hda_hw_config *cs35l41_hda_read_acpi(struct cs35l41_hda *c
}
property = "cirrus,speaker-position";
ret = device_property_read_u32_array(acpi_dev, property, values, nval);
ret = device_property_read_u32_array(physdev, 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);
ret = device_property_read_u32_array(physdev, 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);
ret = device_property_read_u32_array(physdev, 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);
ret = device_property_read_u32_array(physdev, 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);
ret = device_property_read_u32_array(physdev, 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);
ret = device_property_read_u32_array(physdev, property, values, nval);
if (ret == 0)
hw_cfg->bst_cap = values[cs35l41->index];
put_device(acpi_dev);
put_device(physdev);
return hw_cfg;
err_free:
kfree(hw_cfg);
err:
put_device(acpi_dev);
put_device(physdev);
dev_err(cs35l41->dev, "Failed property %s: %d\n", property, ret);
return ERR_PTR(ret);
......@@ -383,18 +379,18 @@ static struct cs35l41_hda_hw_config *cs35l41_hda_read_acpi(struct cs35l41_hda *c
/*
* 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
* the correct fwnode, so acpi_dev must be used here.
* And devm functions expect that the device requesting the resource has the correct
* fwnode
* 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->reset_gpio = gpiod_get_index(physdev, NULL, 0, GPIOD_OUT_HIGH);
cs35l41->vspk_always_on = true;
put_device(acpi_dev);
put_device(physdev);
return NULL;
}
......@@ -449,7 +445,8 @@ int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int i
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");
dev_err(cs35l41->dev, "OTP Boot status %x error: %d\n",
int_sts & CS35L41_OTP_BOOT_ERR, ret);
ret = -EIO;
goto err;
}
......
sound/pci/hda/cs35l41_hda.h
View file @ 8c286a0f
/* SPDX-License-Identifier: GPL-2.0
*
* cs35l41_hda.h -- CS35L41 ALSA HDA audio driver
* CS35L41 ALSA HDA audio driver
*
* Copyright 2021 Cirrus Logic, Inc.
*
......
sound/pci/hda/cs35l41_hda_i2c.c
View file @ 8c286a0f
......@@ -58,7 +58,6 @@ static struct i2c_driver cs35l41_i2c_driver = {
.probe = cs35l41_hda_i2c_probe,
.remove = cs35l41_hda_i2c_remove,
};
module_i2c_driver(cs35l41_i2c_driver);
MODULE_DESCRIPTION("HDA CS35L41 driver");
......
sound/pci/hda/cs35l41_hda_spi.c
View file @ 8c286a0f
......@@ -55,7 +55,6 @@ static struct spi_driver cs35l41_spi_driver = {
.probe = cs35l41_hda_spi_probe,
.remove = cs35l41_hda_spi_remove,
};
module_spi_driver(cs35l41_spi_driver);
MODULE_DESCRIPTION("HDA CS35L41 driver");
......
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