Clean up and simplify cs35l41_hda_bind function
Signed-off-by: Lucas Tanure tanureal@opensource.cirrus.com ---
V2: Removed changes not related with clean up
--- sound/pci/hda/cs35l41_hda.c | 99 ++++++++++++++++----------------- sound/pci/hda/cs35l41_hda.h | 2 +- sound/pci/hda/cs35l41_hda_i2c.c | 1 - sound/pci/hda/cs35l41_hda_spi.c | 1 - 4 files changed, 49 insertions(+), 54 deletions(-)
diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c index c317b392c3e3..3f9ddfb4eaf3 100644 --- a/sound/pci/hda/cs35l41_hda.c +++ b/sound/pci/hda/cs35l41_hda.c @@ -1,6 +1,6 @@ // 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->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; - } + comps = &comps[cs35l41->index]; + if (comps->dev) + return -EBUSY;
- 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; }
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; } @@ -501,7 +498,7 @@ int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int i
if (cs35l41->reg_seq->probe) { ret = regmap_multi_reg_write(cs35l41->regmap, cs35l41->reg_seq->probe, - cs35l41->reg_seq->num_probe); + cs35l41->reg_seq->num_probe); if (ret) { dev_err(cs35l41->dev, "Fail to apply probe reg patch: %d\n", ret); goto err; diff --git a/sound/pci/hda/cs35l41_hda.h b/sound/pci/hda/cs35l41_hda.h index 76c69a8a22f6..640afc98b686 100644 --- a/sound/pci/hda/cs35l41_hda.h +++ b/sound/pci/hda/cs35l41_hda.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 * - * cs35l41_hda.h -- CS35L41 ALSA HDA audio driver + * CS35L41 ALSA HDA audio driver * * Copyright 2021 Cirrus Logic, Inc. * diff --git a/sound/pci/hda/cs35l41_hda_i2c.c b/sound/pci/hda/cs35l41_hda_i2c.c index eeb387853ee3..c2397dc53e78 100644 --- a/sound/pci/hda/cs35l41_hda_i2c.c +++ b/sound/pci/hda/cs35l41_hda_i2c.c @@ -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"); diff --git a/sound/pci/hda/cs35l41_hda_spi.c b/sound/pci/hda/cs35l41_hda_spi.c index 15345a72b9d1..36815ab4e461 100644 --- a/sound/pci/hda/cs35l41_hda_spi.c +++ b/sound/pci/hda/cs35l41_hda_spi.c @@ -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");