[PATCH v2 5/5] ASoC: cs35l45: Add driver for Cirrus Logic CS35L45 Smart Amp
From: Richard Fitzgerald
Date: Tue Apr 05 2022 - 19:19:01 EST
From: James Schulman <james.schulman@xxxxxxxxxx>
The CS35L45 is a 15 V Boosted Mono Class D Amplifier with DSP
Speaker Protection and Adaptive Battery Management.
This initial driver provides standard non-boosted audio operation
without the DSP.
Signed-off-by: James Schulman <james.schulman@xxxxxxxxxx>
Signed-off-by: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>
---
sound/soc/codecs/Kconfig | 30 ++
sound/soc/codecs/Makefile | 8 +
sound/soc/codecs/cs35l45-i2c.c | 72 ++++
sound/soc/codecs/cs35l45-spi.c | 72 ++++
sound/soc/codecs/cs35l45-tables.c | 202 +++++++++
sound/soc/codecs/cs35l45.c | 693 ++++++++++++++++++++++++++++++
sound/soc/codecs/cs35l45.h | 217 ++++++++++
7 files changed, 1294 insertions(+)
create mode 100644 sound/soc/codecs/cs35l45-i2c.c
create mode 100644 sound/soc/codecs/cs35l45-spi.c
create mode 100644 sound/soc/codecs/cs35l45-tables.c
create mode 100644 sound/soc/codecs/cs35l45.c
create mode 100644 sound/soc/codecs/cs35l45.h
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 21db336375ad..33edfd0ff079 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -65,6 +65,8 @@ config SND_SOC_ALL_CODECS
imply SND_SOC_CS35L36
imply SND_SOC_CS35L41_SPI
imply SND_SOC_CS35L41_I2C
+ imply SND_SOC_CS35L45_I2C
+ imply SND_SOC_CS35L45_SPI
imply SND_SOC_CS42L42
imply SND_SOC_CS42L51_I2C
imply SND_SOC_CS42L52
@@ -656,6 +658,34 @@ config SND_SOC_CS35L41_I2C
select SND_SOC_CS35L41
select REGMAP_I2C
+config SND_SOC_CS35L45_TABLES
+ tristate
+
+config SND_SOC_CS35L45
+ tristate
+
+config SND_SOC_CS35L45_SPI
+ tristate "Cirrus Logic CS35L45 CODEC (SPI)"
+ depends on SPI_MASTER
+ select REGMAP
+ select REGMAP_SPI
+ select SND_SOC_CS35L45_TABLES
+ select SND_SOC_CS35L45
+ help
+ Enable support for Cirrus Logic CS35L45 smart speaker amplifier
+ with SPI control.
+
+config SND_SOC_CS35L45_I2C
+ tristate "Cirrus Logic CS35L45 CODEC (I2C)"
+ depends on I2C
+ select REGMAP
+ select REGMAP_I2C
+ select SND_SOC_CS35L45_TABLES
+ select SND_SOC_CS35L45
+ help
+ Enable support for Cirrus Logic CS35L45 smart speaker amplifier
+ with I2C control.
+
config SND_SOC_CS42L42
tristate "Cirrus Logic CS42L42 CODEC"
depends on I2C
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 46a100b200b9..57e651532749 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -60,6 +60,10 @@ snd-soc-cs35l41-lib-objs := cs35l41-lib.o
snd-soc-cs35l41-objs := cs35l41.o
snd-soc-cs35l41-spi-objs := cs35l41-spi.o
snd-soc-cs35l41-i2c-objs := cs35l41-i2c.o
+snd-soc-cs35l45-tables-objs := cs35l45-tables.o
+snd-soc-cs35l45-objs := cs35l45.o
+snd-soc-cs35l45-spi-objs := cs35l45-spi.o
+snd-soc-cs35l45-i2c-objs := cs35l45-i2c.o
snd-soc-cs42l42-objs := cs42l42.o
snd-soc-cs42l51-objs := cs42l51.o
snd-soc-cs42l51-i2c-objs := cs42l51-i2c.o
@@ -406,6 +410,10 @@ obj-$(CONFIG_SND_SOC_CS35L41) += snd-soc-cs35l41.o
obj-$(CONFIG_SND_SOC_CS35L41_LIB) += snd-soc-cs35l41-lib.o
obj-$(CONFIG_SND_SOC_CS35L41_SPI) += snd-soc-cs35l41-spi.o
obj-$(CONFIG_SND_SOC_CS35L41_I2C) += snd-soc-cs35l41-i2c.o
+obj-$(CONFIG_SND_SOC_CS35L45_TABLES) += snd-soc-cs35l45-tables.o
+obj-$(CONFIG_SND_SOC_CS35L45) += snd-soc-cs35l45.o
+obj-$(CONFIG_SND_SOC_CS35L45_SPI) += snd-soc-cs35l45-spi.o
+obj-$(CONFIG_SND_SOC_CS35L45_I2C) += snd-soc-cs35l45-i2c.o
obj-$(CONFIG_SND_SOC_CS42L42) += snd-soc-cs42l42.o
obj-$(CONFIG_SND_SOC_CS42L51) += snd-soc-cs42l51.o
obj-$(CONFIG_SND_SOC_CS42L51_I2C) += snd-soc-cs42l51-i2c.o
diff --git a/sound/soc/codecs/cs35l45-i2c.c b/sound/soc/codecs/cs35l45-i2c.c
new file mode 100644
index 000000000000..18ebf1e14b91
--- /dev/null
+++ b/sound/soc/codecs/cs35l45-i2c.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+//
+// cs35l45-i2c.c -- CS35L45 I2C driver
+//
+// Copyright 2019-2022 Cirrus Logic, Inc.
+//
+// Author: James Schulman <james.schulman@xxxxxxxxxx>
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+
+#include "cs35l45.h"
+
+static int cs35l45_i2c_probe(struct i2c_client *client)
+{
+ struct cs35l45_private *cs35l45;
+ struct device *dev = &client->dev;
+ int ret;
+
+ cs35l45 = devm_kzalloc(dev, sizeof(struct cs35l45_private), GFP_KERNEL);
+ if (!cs35l45)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, cs35l45);
+ cs35l45->regmap = devm_regmap_init_i2c(client, &cs35l45_i2c_regmap);
+ if (IS_ERR(cs35l45->regmap)) {
+ ret = PTR_ERR(cs35l45->regmap);
+ dev_err(dev, "Failed to allocate register map: %d\n", ret);
+ return ret;
+ }
+
+ cs35l45->dev = dev;
+
+ return cs35l45_probe(cs35l45);
+}
+
+static int cs35l45_i2c_remove(struct i2c_client *client)
+{
+ struct cs35l45_private *cs35l45 = i2c_get_clientdata(client);
+
+ return cs35l45_remove(cs35l45);
+}
+
+static const struct of_device_id cs35l45_of_match[] = {
+ { .compatible = "cirrus,cs35l45" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, cs35l45_of_match);
+
+static const struct i2c_device_id cs35l45_id_i2c[] = {
+ { "cs35l45", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, cs35l45_id_i2c);
+
+static struct i2c_driver cs35l45_i2c_driver = {
+ .driver = {
+ .name = "cs35l45",
+ .of_match_table = cs35l45_of_match,
+ .pm = &cs35l45_pm_ops,
+ },
+ .id_table = cs35l45_id_i2c,
+ .probe_new = cs35l45_i2c_probe,
+ .remove = cs35l45_i2c_remove,
+};
+module_i2c_driver(cs35l45_i2c_driver);
+
+MODULE_DESCRIPTION("I2C CS35L45 driver");
+MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@xxxxxxxxxx>");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/sound/soc/codecs/cs35l45-spi.c b/sound/soc/codecs/cs35l45-spi.c
new file mode 100644
index 000000000000..445f57ff1fcd
--- /dev/null
+++ b/sound/soc/codecs/cs35l45-spi.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+//
+// cs35l45-spi.c -- CS35L45 SPI driver
+//
+// Copyright 2019-2022 Cirrus Logic, Inc.
+//
+// Author: James Schulman <james.schulman@xxxxxxxxxx>
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+
+#include "cs35l45.h"
+
+static int cs35l45_spi_probe(struct spi_device *spi)
+{
+ struct cs35l45_private *cs35l45;
+ struct device *dev = &spi->dev;
+ int ret;
+
+ cs35l45 = devm_kzalloc(dev, sizeof(struct cs35l45_private), GFP_KERNEL);
+ if (cs35l45 == NULL)
+ return -ENOMEM;
+
+ spi_set_drvdata(spi, cs35l45);
+ cs35l45->regmap = devm_regmap_init_spi(spi, &cs35l45_spi_regmap);
+ if (IS_ERR(cs35l45->regmap)) {
+ ret = PTR_ERR(cs35l45->regmap);
+ dev_err(dev, "Failed to allocate register map: %d\n", ret);
+ return ret;
+ }
+
+ cs35l45->dev = dev;
+
+ return cs35l45_probe(cs35l45);
+}
+
+static void cs35l45_spi_remove(struct spi_device *spi)
+{
+ struct cs35l45_private *cs35l45 = spi_get_drvdata(spi);
+
+ cs35l45_remove(cs35l45);
+}
+
+static const struct of_device_id cs35l45_of_match[] = {
+ { .compatible = "cirrus,cs35l45" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, cs35l45_of_match);
+
+static const struct spi_device_id cs35l45_id_spi[] = {
+ { "cs35l45", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(spi, cs35l45_id_spi);
+
+static struct spi_driver cs35l45_spi_driver = {
+ .driver = {
+ .name = "cs35l45",
+ .of_match_table = cs35l45_of_match,
+ .pm = &cs35l45_pm_ops,
+ },
+ .id_table = cs35l45_id_spi,
+ .probe = cs35l45_spi_probe,
+ .remove = cs35l45_spi_remove,
+};
+module_spi_driver(cs35l45_spi_driver);
+
+MODULE_DESCRIPTION("SPI CS35L45 driver");
+MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@xxxxxxxxxx>");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/sound/soc/codecs/cs35l45-tables.c b/sound/soc/codecs/cs35l45-tables.c
new file mode 100644
index 000000000000..95d5b3606448
--- /dev/null
+++ b/sound/soc/codecs/cs35l45-tables.c
@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+//
+// cs35l45-tables.c -- CS35L45 ALSA SoC audio driver
+//
+// Copyright 2019-2022 Cirrus Logic, Inc.
+//
+// Author: James Schulman <james.schulman@xxxxxxxxxx>
+
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include "cs35l45.h"
+
+static const struct reg_sequence cs35l45_patch[] = {
+ { 0x00000040, 0x00000055 },
+ { 0x00000040, 0x000000AA },
+ { 0x00000044, 0x00000055 },
+ { 0x00000044, 0x000000AA },
+ { 0x00006480, 0x0830500A },
+ { 0x00007C60, 0x1000850B },
+ { CS35L45_BOOST_OV_CFG, 0x007000D0 },
+ { CS35L45_LDPM_CONFIG, 0x0001B636 },
+ { 0x00002C08, 0x00000009 },
+ { 0x00006850, 0x0A30FFC4 },
+ { 0x00003820, 0x00040100 },
+ { 0x00003824, 0x00000000 },
+ { 0x00007CFC, 0x62870004 },
+ { 0x00007C60, 0x1001850B },
+ { 0x00000040, 0x00000000 },
+ { 0x00000044, 0x00000000 },
+ { CS35L45_BOOST_CCM_CFG, 0xF0000003 },
+ { CS35L45_BOOST_DCM_CFG, 0x08710220 },
+ { CS35L45_ERROR_RELEASE, 0x00200000 },
+};
+
+int cs35l45_apply_patch(struct cs35l45_private *cs35l45)
+{
+ return regmap_register_patch(cs35l45->regmap, cs35l45_patch,
+ ARRAY_SIZE(cs35l45_patch));
+}
+EXPORT_SYMBOL_GPL(cs35l45_apply_patch);
+
+static const struct reg_default cs35l45_defaults[] = {
+ { CS35L45_BLOCK_ENABLES, 0x00003323 },
+ { CS35L45_BLOCK_ENABLES2, 0x00000010 },
+ { CS35L45_REFCLK_INPUT, 0x00000510 },
+ { CS35L45_GLOBAL_SAMPLE_RATE, 0x00000003 },
+ { CS35L45_ASP_ENABLES1, 0x00000000 },
+ { CS35L45_ASP_CONTROL1, 0x00000028 },
+ { CS35L45_ASP_CONTROL2, 0x18180200 },
+ { CS35L45_ASP_CONTROL3, 0x00000002 },
+ { CS35L45_ASP_FRAME_CONTROL1, 0x03020100 },
+ { CS35L45_ASP_FRAME_CONTROL2, 0x00000004 },
+ { CS35L45_ASP_FRAME_CONTROL5, 0x00000100 },
+ { CS35L45_ASP_DATA_CONTROL1, 0x00000018 },
+ { CS35L45_ASP_DATA_CONTROL5, 0x00000018 },
+ { CS35L45_DACPCM1_INPUT, 0x00000008 },
+ { CS35L45_ASPTX1_INPUT, 0x00000018 },
+ { CS35L45_ASPTX2_INPUT, 0x00000019 },
+ { CS35L45_ASPTX3_INPUT, 0x00000020 },
+ { CS35L45_ASPTX4_INPUT, 0x00000028 },
+ { CS35L45_ASPTX5_INPUT, 0x00000048 },
+ { CS35L45_AMP_PCM_CONTROL, 0x00100000 },
+};
+
+static bool cs35l45_readable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case CS35L45_DEVID ... CS35L45_OTPID:
+ case CS35L45_SFT_RESET:
+ case CS35L45_GLOBAL_ENABLES:
+ case CS35L45_BLOCK_ENABLES:
+ case CS35L45_BLOCK_ENABLES2:
+ case CS35L45_ERROR_RELEASE:
+ case CS35L45_REFCLK_INPUT:
+ case CS35L45_GLOBAL_SAMPLE_RATE:
+ case CS35L45_ASP_ENABLES1:
+ case CS35L45_ASP_CONTROL1:
+ case CS35L45_ASP_CONTROL2:
+ case CS35L45_ASP_CONTROL3:
+ case CS35L45_ASP_FRAME_CONTROL1:
+ case CS35L45_ASP_FRAME_CONTROL2:
+ case CS35L45_ASP_FRAME_CONTROL5:
+ case CS35L45_ASP_DATA_CONTROL1:
+ case CS35L45_ASP_DATA_CONTROL5:
+ case CS35L45_DACPCM1_INPUT:
+ case CS35L45_ASPTX1_INPUT:
+ case CS35L45_ASPTX2_INPUT:
+ case CS35L45_ASPTX3_INPUT:
+ case CS35L45_ASPTX4_INPUT:
+ case CS35L45_ASPTX5_INPUT:
+ case CS35L45_AMP_PCM_CONTROL:
+ case CS35L45_AMP_PCM_HPF_TST:
+ case CS35L45_IRQ1_EINT_4:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool cs35l45_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case CS35L45_DEVID ... CS35L45_OTPID:
+ case CS35L45_SFT_RESET:
+ case CS35L45_GLOBAL_ENABLES:
+ case CS35L45_ERROR_RELEASE:
+ case CS35L45_AMP_PCM_HPF_TST: /* not cachable */
+ case CS35L45_IRQ1_EINT_4:
+ return true;
+ default:
+ return false;
+ }
+}
+
+const struct regmap_config cs35l45_i2c_regmap = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 4,
+ .reg_format_endian = REGMAP_ENDIAN_BIG,
+ .val_format_endian = REGMAP_ENDIAN_BIG,
+ .max_register = CS35L45_LASTREG,
+ .reg_defaults = cs35l45_defaults,
+ .num_reg_defaults = ARRAY_SIZE(cs35l45_defaults),
+ .volatile_reg = cs35l45_volatile_reg,
+ .readable_reg = cs35l45_readable_reg,
+ .cache_type = REGCACHE_RBTREE,
+};
+EXPORT_SYMBOL_GPL(cs35l45_i2c_regmap);
+
+const struct regmap_config cs35l45_spi_regmap = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .pad_bits = 16,
+ .reg_stride = 4,
+ .reg_format_endian = REGMAP_ENDIAN_BIG,
+ .val_format_endian = REGMAP_ENDIAN_BIG,
+ .max_register = CS35L45_LASTREG,
+ .reg_defaults = cs35l45_defaults,
+ .num_reg_defaults = ARRAY_SIZE(cs35l45_defaults),
+ .volatile_reg = cs35l45_volatile_reg,
+ .readable_reg = cs35l45_readable_reg,
+ .cache_type = REGCACHE_RBTREE,
+};
+EXPORT_SYMBOL_GPL(cs35l45_spi_regmap);
+
+static const struct {
+ u8 cfg_id;
+ u32 freq;
+} cs35l45_pll_refclk_freq[] = {
+ { 0x0C, 128000 },
+ { 0x0F, 256000 },
+ { 0x11, 384000 },
+ { 0x12, 512000 },
+ { 0x15, 768000 },
+ { 0x17, 1024000 },
+ { 0x19, 1411200 },
+ { 0x1B, 1536000 },
+ { 0x1C, 2116800 },
+ { 0x1D, 2048000 },
+ { 0x1E, 2304000 },
+ { 0x1F, 2822400 },
+ { 0x21, 3072000 },
+ { 0x23, 4233600 },
+ { 0x24, 4096000 },
+ { 0x25, 4608000 },
+ { 0x26, 5644800 },
+ { 0x27, 6000000 },
+ { 0x28, 6144000 },
+ { 0x29, 6350400 },
+ { 0x2A, 6912000 },
+ { 0x2D, 7526400 },
+ { 0x2E, 8467200 },
+ { 0x2F, 8192000 },
+ { 0x30, 9216000 },
+ { 0x31, 11289600 },
+ { 0x33, 12288000 },
+ { 0x37, 16934400 },
+ { 0x38, 18432000 },
+ { 0x39, 22579200 },
+ { 0x3B, 24576000 },
+};
+
+unsigned int cs35l45_get_clk_freq_id(unsigned int freq)
+{
+ int i;
+
+ if (freq == 0)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(cs35l45_pll_refclk_freq); ++i) {
+ if (cs35l45_pll_refclk_freq[i].freq == freq)
+ return cs35l45_pll_refclk_freq[i].cfg_id;
+ }
+
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(cs35l45_get_clk_freq_id);
+
+MODULE_DESCRIPTION("ASoC CS35L45 driver tables");
+MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@xxxxxxxxxx>");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/sound/soc/codecs/cs35l45.c b/sound/soc/codecs/cs35l45.c
new file mode 100644
index 000000000000..7822626d3693
--- /dev/null
+++ b/sound/soc/codecs/cs35l45.c
@@ -0,0 +1,693 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+//
+// cs35l45.c - CS35L45 ALSA SoC audio driver
+//
+// Copyright 2019-2022 Cirrus Logic, Inc.
+//
+// Author: James Schulman <james.schulman@xxxxxxxxxx>
+
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/property.h>
+#include <linux/regulator/consumer.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#include "cs35l45.h"
+
+static int cs35l45_global_en_ev(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
+ struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(component);
+
+ dev_dbg(cs35l45->dev, "%s event : %x\n", __func__, event);
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ regmap_write(cs35l45->regmap, CS35L45_GLOBAL_ENABLES,
+ CS35L45_GLOBAL_EN_MASK);
+
+ usleep_range(CS35L45_POST_GLOBAL_EN_US, CS35L45_POST_GLOBAL_EN_US + 100);
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ usleep_range(CS35L45_PRE_GLOBAL_DIS_US, CS35L45_PRE_GLOBAL_DIS_US + 100);
+
+ regmap_write(cs35l45->regmap, CS35L45_GLOBAL_ENABLES, 0);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static const char * const cs35l45_asp_tx_txt[] = {
+ "Zero", "ASP_RX1", "ASP_RX2",
+ "VMON", "IMON", "ERR_VOL",
+ "VDD_BATTMON", "VDD_BSTMON",
+ "Interpolator", "IL_TARGET",
+};
+
+static const unsigned int cs35l45_asp_tx_val[] = {
+ CS35L45_PCM_SRC_ZERO, CS35L45_PCM_SRC_ASP_RX1, CS35L45_PCM_SRC_ASP_RX2,
+ CS35L45_PCM_SRC_VMON, CS35L45_PCM_SRC_IMON, CS35L45_PCM_SRC_ERR_VOL,
+ CS35L45_PCM_SRC_VDD_BATTMON, CS35L45_PCM_SRC_VDD_BSTMON,
+ CS35L45_PCM_SRC_INTERPOLATOR, CS35L45_PCM_SRC_IL_TARGET,
+};
+
+static const struct soc_enum cs35l45_asp_tx_enums[] = {
+ SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX1_INPUT, 0, CS35L45_PCM_SRC_MASK,
+ ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
+ cs35l45_asp_tx_val),
+ SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX2_INPUT, 0, CS35L45_PCM_SRC_MASK,
+ ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
+ cs35l45_asp_tx_val),
+ SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX3_INPUT, 0, CS35L45_PCM_SRC_MASK,
+ ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
+ cs35l45_asp_tx_val),
+ SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX4_INPUT, 0, CS35L45_PCM_SRC_MASK,
+ ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
+ cs35l45_asp_tx_val),
+ SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX5_INPUT, 0, CS35L45_PCM_SRC_MASK,
+ ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
+ cs35l45_asp_tx_val),
+};
+
+static const char * const cs35l45_dac_txt[] = {
+ "Zero", "ASP_RX1", "ASP_RX2"
+};
+
+static const unsigned int cs35l45_dac_val[] = {
+ CS35L45_PCM_SRC_ZERO, CS35L45_PCM_SRC_ASP_RX1, CS35L45_PCM_SRC_ASP_RX2
+};
+
+static const struct soc_enum cs35l45_dacpcm_enums[] = {
+ SOC_VALUE_ENUM_SINGLE(CS35L45_DACPCM1_INPUT, 0, CS35L45_PCM_SRC_MASK,
+ ARRAY_SIZE(cs35l45_dac_txt), cs35l45_dac_txt,
+ cs35l45_dac_val),
+};
+
+static const struct snd_kcontrol_new cs35l45_asp_muxes[] = {
+ SOC_DAPM_ENUM("ASP_TX1 Source", cs35l45_asp_tx_enums[0]),
+ SOC_DAPM_ENUM("ASP_TX2 Source", cs35l45_asp_tx_enums[1]),
+ SOC_DAPM_ENUM("ASP_TX3 Source", cs35l45_asp_tx_enums[2]),
+ SOC_DAPM_ENUM("ASP_TX4 Source", cs35l45_asp_tx_enums[3]),
+ SOC_DAPM_ENUM("ASP_TX5 Source", cs35l45_asp_tx_enums[4]),
+};
+
+static const struct snd_kcontrol_new cs35l45_dac_muxes[] = {
+ SOC_DAPM_ENUM("DACPCM1 Source", cs35l45_dacpcm_enums[0]),
+};
+
+static const struct snd_soc_dapm_widget cs35l45_dapm_widgets[] = {
+ SND_SOC_DAPM_SUPPLY("GLOBAL_EN", SND_SOC_NOPM, 0, 0,
+ cs35l45_global_en_ev,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+ SND_SOC_DAPM_SUPPLY("ASP_EN", CS35L45_BLOCK_ENABLES2, CS35L45_ASP_EN_SHIFT, 0, NULL, 0),
+
+ SND_SOC_DAPM_SIGGEN("VMON_SRC"),
+ SND_SOC_DAPM_SIGGEN("IMON_SRC"),
+ SND_SOC_DAPM_SIGGEN("VDD_BATTMON_SRC"),
+ SND_SOC_DAPM_SIGGEN("VDD_BSTMON_SRC"),
+ SND_SOC_DAPM_SIGGEN("ERR_VOL"),
+ SND_SOC_DAPM_SIGGEN("AMP_INTP"),
+ SND_SOC_DAPM_SIGGEN("IL_TARGET"),
+ SND_SOC_DAPM_ADC("VMON", NULL, CS35L45_BLOCK_ENABLES, CS35L45_VMON_EN_SHIFT, 0),
+ SND_SOC_DAPM_ADC("IMON", NULL, CS35L45_BLOCK_ENABLES, CS35L45_IMON_EN_SHIFT, 0),
+ SND_SOC_DAPM_ADC("VDD_BATTMON", NULL, CS35L45_BLOCK_ENABLES,
+ CS35L45_VDD_BATTMON_EN_SHIFT, 0),
+ SND_SOC_DAPM_ADC("VDD_BSTMON", NULL, CS35L45_BLOCK_ENABLES,
+ CS35L45_VDD_BSTMON_EN_SHIFT, 0),
+
+ SND_SOC_DAPM_AIF_IN("ASP_RX1", NULL, 0, CS35L45_ASP_ENABLES1, CS35L45_ASP_RX1_EN_SHIFT, 0),
+ SND_SOC_DAPM_AIF_IN("ASP_RX2", NULL, 1, CS35L45_ASP_ENABLES1, CS35L45_ASP_RX2_EN_SHIFT, 0),
+
+ SND_SOC_DAPM_AIF_OUT("ASP_TX1", NULL, 0, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX1_EN_SHIFT, 0),
+ SND_SOC_DAPM_AIF_OUT("ASP_TX2", NULL, 1, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX2_EN_SHIFT, 0),
+ SND_SOC_DAPM_AIF_OUT("ASP_TX3", NULL, 2, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX3_EN_SHIFT, 0),
+ SND_SOC_DAPM_AIF_OUT("ASP_TX4", NULL, 3, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX4_EN_SHIFT, 0),
+ SND_SOC_DAPM_AIF_OUT("ASP_TX5", NULL, 3, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX5_EN_SHIFT, 0),
+
+ SND_SOC_DAPM_MUX("ASP_TX1 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[0]),
+ SND_SOC_DAPM_MUX("ASP_TX2 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[1]),
+ SND_SOC_DAPM_MUX("ASP_TX3 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[2]),
+ SND_SOC_DAPM_MUX("ASP_TX4 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[3]),
+ SND_SOC_DAPM_MUX("ASP_TX5 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[4]),
+
+ SND_SOC_DAPM_MUX("DACPCM1 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dac_muxes[0]),
+
+ SND_SOC_DAPM_OUT_DRV("AMP", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+ SND_SOC_DAPM_OUTPUT("SPK"),
+};
+
+#define CS35L45_ASP_MUX_ROUTE(name) \
+ { name" Source", "ASP_RX1", "ASP_RX1" }, \
+ { name" Source", "ASP_RX2", "ASP_RX2" }, \
+ { name" Source", "VMON", "VMON" }, \
+ { name" Source", "IMON", "IMON" }, \
+ { name" Source", "ERR_VOL", "ERR_VOL" }, \
+ { name" Source", "VDD_BATTMON", "VDD_BATTMON" }, \
+ { name" Source", "VDD_BSTMON", "VDD_BSTMON" }, \
+ { name" Source", "Interpolator", "AMP_INTP" }, \
+ { name" Source", "IL_TARGET", "IL_TARGET" }
+
+#define CS35L45_DAC_MUX_ROUTE(name) \
+ { name" Source", "ASP_RX1", "ASP_RX1" }, \
+ { name" Source", "ASP_RX2", "ASP_RX2" }
+
+static const struct snd_soc_dapm_route cs35l45_dapm_routes[] = {
+ /* Feedback */
+ { "VMON", NULL, "VMON_SRC" },
+ { "IMON", NULL, "IMON_SRC" },
+ { "VDD_BATTMON", NULL, "VDD_BATTMON_SRC" },
+ { "VDD_BSTMON", NULL, "VDD_BSTMON_SRC" },
+
+ { "Capture", NULL, "ASP_TX1"},
+ { "Capture", NULL, "ASP_TX2"},
+ { "Capture", NULL, "ASP_TX3"},
+ { "Capture", NULL, "ASP_TX4"},
+ { "Capture", NULL, "ASP_TX5"},
+ { "ASP_TX1", NULL, "ASP_TX1 Source"},
+ { "ASP_TX2", NULL, "ASP_TX2 Source"},
+ { "ASP_TX3", NULL, "ASP_TX3 Source"},
+ { "ASP_TX4", NULL, "ASP_TX4 Source"},
+ { "ASP_TX5", NULL, "ASP_TX5 Source"},
+
+ { "ASP_TX1", NULL, "ASP_EN" },
+ { "ASP_TX2", NULL, "ASP_EN" },
+ { "ASP_TX3", NULL, "ASP_EN" },
+ { "ASP_TX4", NULL, "ASP_EN" },
+ { "ASP_TX1", NULL, "GLOBAL_EN" },
+ { "ASP_TX2", NULL, "GLOBAL_EN" },
+ { "ASP_TX3", NULL, "GLOBAL_EN" },
+ { "ASP_TX4", NULL, "GLOBAL_EN" },
+ { "ASP_TX5", NULL, "GLOBAL_EN" },
+
+ CS35L45_ASP_MUX_ROUTE("ASP_TX1"),
+ CS35L45_ASP_MUX_ROUTE("ASP_TX2"),
+ CS35L45_ASP_MUX_ROUTE("ASP_TX3"),
+ CS35L45_ASP_MUX_ROUTE("ASP_TX4"),
+ CS35L45_ASP_MUX_ROUTE("ASP_TX5"),
+
+ /* Playback */
+ { "ASP_RX1", NULL, "Playback" },
+ { "ASP_RX2", NULL, "Playback" },
+ { "ASP_RX1", NULL, "ASP_EN" },
+ { "ASP_RX2", NULL, "ASP_EN" },
+
+ { "AMP", NULL, "DACPCM1 Source"},
+ { "AMP", NULL, "GLOBAL_EN"},
+
+ CS35L45_DAC_MUX_ROUTE("DACPCM1"),
+
+ { "SPK", NULL, "AMP"},
+};
+
+static const DECLARE_TLV_DB_SCALE(cs35l45_dig_pcm_vol_tlv, -10225, 25, true);
+
+static const struct snd_kcontrol_new cs35l45_controls[] = {
+ /* Ignore bit 0: it is beyond the resolution of TLV_DB_SCALE */
+ SOC_SINGLE_S_TLV("Digital PCM Volume",
+ CS35L45_AMP_PCM_CONTROL,
+ CS35L45_AMP_VOL_PCM_SHIFT + 1,
+ -409, 48,
+ (CS35L45_AMP_VOL_PCM_WIDTH - 1) - 1,
+ 0, cs35l45_dig_pcm_vol_tlv),
+};
+
+static int cs35l45_set_pll(struct cs35l45_private *cs35l45, unsigned int freq)
+{
+ unsigned int val;
+ int freq_id;
+
+ freq_id = cs35l45_get_clk_freq_id(freq);
+ if (freq_id < 0) {
+ dev_err(cs35l45->dev, "Invalid freq: %u\n", freq);
+ return -EINVAL;
+ }
+
+ regmap_read(cs35l45->regmap, CS35L45_REFCLK_INPUT, &val);
+ val = (val & CS35L45_PLL_REFCLK_FREQ_MASK) >> CS35L45_PLL_REFCLK_FREQ_SHIFT;
+ if (val == freq_id)
+ return 0;
+
+ regmap_set_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT, CS35L45_PLL_OPEN_LOOP_MASK);
+ regmap_update_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT,
+ CS35L45_PLL_REFCLK_FREQ_MASK,
+ freq_id << CS35L45_PLL_REFCLK_FREQ_SHIFT);
+ regmap_clear_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT, CS35L45_PLL_REFCLK_EN_MASK);
+ regmap_clear_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT, CS35L45_PLL_OPEN_LOOP_MASK);
+ regmap_set_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT, CS35L45_PLL_REFCLK_EN_MASK);
+
+ return 0;
+}
+
+static int cs35l45_asp_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
+{
+ struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(codec_dai->component);
+ unsigned int asp_fmt, fsync_inv, bclk_inv;
+
+ switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+ case SND_SOC_DAIFMT_CBC_CFC:
+ break;
+ default:
+ dev_err(cs35l45->dev, "Invalid DAI clocking\n");
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_DSP_A:
+ asp_fmt = CS35l45_ASP_FMT_DSP_A;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ asp_fmt = CS35L45_ASP_FMT_I2S;
+ break;
+ default:
+ dev_err(cs35l45->dev, "Invalid DAI format\n");
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_IF:
+ fsync_inv = 1;
+ bclk_inv = 0;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ fsync_inv = 0;
+ bclk_inv = 1;
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ fsync_inv = 1;
+ bclk_inv = 1;
+ break;
+ case SND_SOC_DAIFMT_NB_NF:
+ fsync_inv = 0;
+ bclk_inv = 0;
+ break;
+ default:
+ dev_warn(cs35l45->dev, "Invalid DAI clock polarity\n");
+ return -EINVAL;
+ }
+
+ regmap_update_bits(cs35l45->regmap, CS35L45_ASP_CONTROL2,
+ CS35L45_ASP_FMT_MASK |
+ CS35L45_ASP_FSYNC_INV_MASK |
+ CS35L45_ASP_BCLK_INV_MASK,
+ (asp_fmt << CS35L45_ASP_FMT_SHIFT) |
+ (fsync_inv << CS35L45_ASP_FSYNC_INV_SHIFT) |
+ (bclk_inv << CS35L45_ASP_BCLK_INV_SHIFT));
+
+ return 0;
+}
+
+static int cs35l45_asp_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(dai->component);
+ unsigned int asp_width, asp_wl, global_fs, slot_multiple, asp_fmt;
+ int bclk;
+
+ switch (params_rate(params)) {
+ case 44100:
+ global_fs = CS35L45_44P100_KHZ;
+ break;
+ case 48000:
+ global_fs = CS35L45_48P0_KHZ;
+ break;
+ case 88200:
+ global_fs = CS35L45_88P200_KHZ;
+ break;
+ case 96000:
+ global_fs = CS35L45_96P0_KHZ;
+ break;
+ default:
+ dev_warn(cs35l45->dev, "Unsupported sample rate (%d)\n",
+ params_rate(params));
+ return -EINVAL;
+ }
+
+ regmap_update_bits(cs35l45->regmap, CS35L45_GLOBAL_SAMPLE_RATE,
+ CS35L45_GLOBAL_FS_MASK,
+ global_fs << CS35L45_GLOBAL_FS_SHIFT);
+
+ asp_wl = params_width(params);
+
+ if (cs35l45->slot_width)
+ asp_width = cs35l45->slot_width;
+ else
+ asp_width = params_width(params);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ regmap_update_bits(cs35l45->regmap, CS35L45_ASP_CONTROL2,
+ CS35L45_ASP_WIDTH_RX_MASK,
+ asp_width << CS35L45_ASP_WIDTH_RX_SHIFT);
+
+ regmap_update_bits(cs35l45->regmap, CS35L45_ASP_DATA_CONTROL5,
+ CS35L45_ASP_WL_MASK,
+ asp_wl << CS35L45_ASP_WL_SHIFT);
+ } else {
+ regmap_update_bits(cs35l45->regmap, CS35L45_ASP_CONTROL2,
+ CS35L45_ASP_WIDTH_TX_MASK,
+ asp_width << CS35L45_ASP_WIDTH_TX_SHIFT);
+
+ regmap_update_bits(cs35l45->regmap, CS35L45_ASP_DATA_CONTROL1,
+ CS35L45_ASP_WL_MASK,
+ asp_wl << CS35L45_ASP_WL_SHIFT);
+ }
+
+ if (cs35l45->sysclk_set)
+ return 0;
+
+ /* I2S always has an even number of channels */
+ regmap_read(cs35l45->regmap, CS35L45_ASP_CONTROL2, &asp_fmt);
+ asp_fmt = (asp_fmt & CS35L45_ASP_FMT_MASK) >> CS35L45_ASP_FMT_SHIFT;
+ if (asp_fmt == CS35L45_ASP_FMT_I2S)
+ slot_multiple = 2;
+ else
+ slot_multiple = 1;
+
+ bclk = snd_soc_tdm_params_to_bclk(params, asp_width,
+ cs35l45->slot_count, slot_multiple);
+
+ return cs35l45_set_pll(cs35l45, bclk);
+}
+
+static int cs35l45_asp_set_tdm_slot(struct snd_soc_dai *dai,
+ unsigned int tx_mask, unsigned int rx_mask,
+ int slots, int slot_width)
+{
+ struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(dai->component);
+
+ if (slot_width && ((slot_width < 16) || (slot_width > 128)))
+ return -EINVAL;
+
+ cs35l45->slot_width = slot_width;
+ cs35l45->slot_count = slots;
+
+ return 0;
+}
+
+static int cs35l45_asp_set_sysclk(struct snd_soc_dai *dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(dai->component);
+ int ret;
+
+ if (clk_id != 0) {
+ dev_err(cs35l45->dev, "Invalid clk_id %d\n", clk_id);
+ return -EINVAL;
+ }
+
+ cs35l45->sysclk_set = false;
+ if (freq == 0)
+ return 0;
+
+ ret = cs35l45_set_pll(cs35l45, freq);
+ if (ret < 0)
+ return -EINVAL;
+
+ cs35l45->sysclk_set = true;
+
+ return 0;
+}
+
+static int cs35l45_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
+{
+ struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(dai->component);
+ unsigned int global_fs, val, hpf_tune;
+
+ if (mute)
+ return 0;
+
+ regmap_read(cs35l45->regmap, CS35L45_GLOBAL_SAMPLE_RATE, &global_fs);
+ global_fs = (global_fs & CS35L45_GLOBAL_FS_MASK) >> CS35L45_GLOBAL_FS_SHIFT;
+ switch (global_fs) {
+ case CS35L45_44P100_KHZ:
+ hpf_tune = CS35L45_HPF_44P1;
+ break;
+ case CS35L45_88P200_KHZ:
+ hpf_tune = CS35L45_HPF_88P2;
+ break;
+ default:
+ hpf_tune = CS35l45_HPF_DEFAULT;
+ break;
+ }
+
+ regmap_read(cs35l45->regmap, CS35L45_AMP_PCM_HPF_TST, &val);
+ if (val != hpf_tune) {
+ struct reg_sequence hpf_override_seq[] = {
+ { 0x00000040, 0x00000055 },
+ { 0x00000040, 0x000000AA },
+ { 0x00000044, 0x00000055 },
+ { 0x00000044, 0x000000AA },
+ { CS35L45_AMP_PCM_HPF_TST, hpf_tune },
+ { 0x00000040, 0x00000000 },
+ { 0x00000044, 0x00000000 },
+ };
+ regmap_multi_reg_write(cs35l45->regmap, hpf_override_seq,
+ ARRAY_SIZE(hpf_override_seq));
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops cs35l45_asp_dai_ops = {
+ .set_fmt = cs35l45_asp_set_fmt,
+ .hw_params = cs35l45_asp_hw_params,
+ .set_tdm_slot = cs35l45_asp_set_tdm_slot,
+ .set_sysclk = cs35l45_asp_set_sysclk,
+ .mute_stream = cs35l45_mute_stream,
+};
+
+static struct snd_soc_dai_driver cs35l45_dai[] = {
+ {
+ .name = "cs35l45",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = CS35L45_RATES,
+ .formats = CS35L45_FORMATS,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 5,
+ .rates = CS35L45_RATES,
+ .formats = CS35L45_FORMATS,
+ },
+ .symmetric_rate = true,
+ .symmetric_sample_bits = true,
+ .ops = &cs35l45_asp_dai_ops,
+ },
+};
+
+static const struct snd_soc_component_driver cs35l45_component = {
+ .dapm_widgets = cs35l45_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(cs35l45_dapm_widgets),
+
+ .dapm_routes = cs35l45_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(cs35l45_dapm_routes),
+
+ .controls = cs35l45_controls,
+ .num_controls = ARRAY_SIZE(cs35l45_controls),
+
+ .name = "cs35l45",
+};
+
+static int __maybe_unused cs35l45_runtime_suspend(struct device *dev)
+{
+ struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
+
+ regcache_cache_only(cs35l45->regmap, true);
+
+ dev_dbg(cs35l45->dev, "Runtime suspended\n");
+
+ return 0;
+}
+
+static int __maybe_unused cs35l45_runtime_resume(struct device *dev)
+{
+ struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
+ int ret;
+
+ dev_dbg(cs35l45->dev, "Runtime resume\n");
+
+ regcache_cache_only(cs35l45->regmap, false);
+ ret = regcache_sync(cs35l45->regmap);
+ if (ret != 0)
+ dev_warn(cs35l45->dev, "regcache_sync failed: %d\n", ret);
+
+ /* Clear global error status */
+ regmap_clear_bits(cs35l45->regmap, CS35L45_ERROR_RELEASE, CS35L45_GLOBAL_ERR_RLS_MASK);
+ regmap_set_bits(cs35l45->regmap, CS35L45_ERROR_RELEASE, CS35L45_GLOBAL_ERR_RLS_MASK);
+ regmap_clear_bits(cs35l45->regmap, CS35L45_ERROR_RELEASE, CS35L45_GLOBAL_ERR_RLS_MASK);
+ return ret;
+}
+
+static int cs35l45_apply_property_config(struct cs35l45_private *cs35l45)
+{
+ unsigned int val;
+
+ if (device_property_read_u32(cs35l45->dev,
+ "cirrus,asp-sdout-hiz-ctrl", &val) == 0) {
+ regmap_update_bits(cs35l45->regmap, CS35L45_ASP_CONTROL3,
+ CS35L45_ASP_DOUT_HIZ_CTRL_MASK,
+ val << CS35L45_ASP_DOUT_HIZ_CTRL_SHIFT);
+ }
+
+ return 0;
+}
+
+static int cs35l45_initialize(struct cs35l45_private *cs35l45)
+{
+ struct device *dev = cs35l45->dev;
+ unsigned int dev_id[5];
+ unsigned int sts;
+ int ret;
+
+ ret = regmap_read_poll_timeout(cs35l45->regmap, CS35L45_IRQ1_EINT_4, sts,
+ (sts & CS35L45_OTP_BOOT_DONE_STS_MASK),
+ 1000, 5000);
+ if (ret < 0) {
+ dev_err(cs35l45->dev, "Timeout waiting for OTP boot\n");
+ return ret;
+ }
+
+ ret = regmap_bulk_read(cs35l45->regmap, CS35L45_DEVID, dev_id, ARRAY_SIZE(dev_id));
+ if (ret) {
+ dev_err(cs35l45->dev, "Get Device ID failed: %d\n", ret);
+ return ret;
+ }
+
+ switch (dev_id[0]) {
+ case 0x35A450:
+ break;
+ default:
+ dev_err(cs35l45->dev, "Bad DEVID 0x%x\n", dev_id[0]);
+ return -ENODEV;
+ }
+
+ dev_info(cs35l45->dev, "Cirrus Logic CS35L45: REVID %02X OTPID %02X\n",
+ dev_id[1], dev_id[4]);
+
+ regmap_write(cs35l45->regmap, CS35L45_IRQ1_EINT_4,
+ CS35L45_OTP_BOOT_DONE_STS_MASK | CS35L45_OTP_BUSY_MASK);
+
+ ret = cs35l45_apply_patch(cs35l45);
+ if (ret < 0) {
+ dev_err(dev, "Failed to apply init patch %d\n", ret);
+ return ret;
+ }
+
+ /* Default to boost bypass */
+ regmap_update_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES, CS35L45_BST_EN_MASK,
+ CS35L45_BST_DISABLE_FET_ON << CS35L45_BST_EN_SHIFT);
+
+ ret = cs35l45_apply_property_config(cs35l45);
+ if (ret < 0)
+ return ret;
+
+ pm_runtime_set_autosuspend_delay(cs35l45->dev, 3000);
+ pm_runtime_use_autosuspend(cs35l45->dev);
+ pm_runtime_set_active(cs35l45->dev);
+ pm_runtime_enable(cs35l45->dev);
+
+ return 0;
+}
+
+int cs35l45_probe(struct cs35l45_private *cs35l45)
+{
+ struct device *dev = cs35l45->dev;
+ int ret;
+
+ cs35l45->vdd_batt = devm_regulator_get(dev, "vdd-batt");
+ if (IS_ERR(cs35l45->vdd_batt))
+ return dev_err_probe(dev, PTR_ERR(cs35l45->vdd_batt),
+ "Failed to request vdd-batt\n");
+
+ cs35l45->vdd_a = devm_regulator_get(dev, "vdd-a");
+ if (IS_ERR(cs35l45->vdd_a))
+ return dev_err_probe(dev, PTR_ERR(cs35l45->vdd_a),
+ "Failed to request vdd-a\n");
+
+ /* VDD_BATT must always be enabled before other supplies */
+ ret = regulator_enable(cs35l45->vdd_batt);
+ if (ret < 0)
+ return dev_err_probe(dev, ret, "Failed to enable vdd-batt\n");
+
+ ret = regulator_enable(cs35l45->vdd_a);
+ if (ret < 0)
+ return dev_err_probe(dev, ret, "Failed to enable vdd-a\n");
+
+ /* If reset is shared only one instance can claim it */
+ cs35l45->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(cs35l45->reset_gpio)) {
+ ret = PTR_ERR(cs35l45->reset_gpio);
+ cs35l45->reset_gpio = NULL;
+ if (ret == -EBUSY) {
+ dev_dbg(dev, "Reset line busy, assuming shared reset\n");
+ } else {
+ dev_err_probe(dev, ret, "Failed to get reset GPIO\n");
+ goto err;
+ }
+ }
+
+ if (cs35l45->reset_gpio) {
+ usleep_range(CS35L45_RESET_HOLD_US, CS35L45_RESET_HOLD_US + 100);
+ gpiod_set_value_cansleep(cs35l45->reset_gpio, 1);
+ }
+
+ usleep_range(CS35L45_RESET_US, CS35L45_RESET_US + 100);
+
+ ret = cs35l45_initialize(cs35l45);
+ if (ret < 0)
+ goto err_reset;
+
+ ret = devm_snd_soc_register_component(dev, &cs35l45_component,
+ cs35l45_dai,
+ ARRAY_SIZE(cs35l45_dai));
+ if (ret < 0)
+ goto err_reset;
+
+ return 0;
+
+err_reset:
+ gpiod_set_value_cansleep(cs35l45->reset_gpio, 0);
+err:
+ regulator_disable(cs35l45->vdd_a);
+ regulator_disable(cs35l45->vdd_batt);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(cs35l45_probe);
+
+int cs35l45_remove(struct cs35l45_private *cs35l45)
+{
+ pm_runtime_disable(cs35l45->dev);
+
+ gpiod_set_value_cansleep(cs35l45->reset_gpio, 0);
+ regulator_disable(cs35l45->vdd_a);
+ /* VDD_BATT must be the last to power-off */
+ regulator_disable(cs35l45->vdd_batt);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(cs35l45_remove);
+
+const struct dev_pm_ops cs35l45_pm_ops = {
+ SET_RUNTIME_PM_OPS(cs35l45_runtime_suspend, cs35l45_runtime_resume, NULL)
+};
+EXPORT_SYMBOL_GPL(cs35l45_pm_ops);
+
+MODULE_DESCRIPTION("ASoC CS35L45 driver");
+MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@xxxxxxxxxx>");
+MODULE_AUTHOR("Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/sound/soc/codecs/cs35l45.h b/sound/soc/codecs/cs35l45.h
new file mode 100644
index 000000000000..4e266d19cd1c
--- /dev/null
+++ b/sound/soc/codecs/cs35l45.h
@@ -0,0 +1,217 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
+/*
+ * cs35l45.h - CS35L45 ALSA SoC audio driver
+ *
+ * Copyright 2019-2022 Cirrus Logic, Inc.
+ *
+ * Author: James Schulman <james.schulman@xxxxxxxxxx>
+ *
+ */
+
+#ifndef CS35L45_H
+#define CS35L45_H
+
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+
+#define CS35L45_DEVID 0x00000000
+#define CS35L45_REVID 0x00000004
+#define CS35L45_RELID 0x0000000C
+#define CS35L45_OTPID 0x00000010
+#define CS35L45_SFT_RESET 0x00000020
+#define CS35L45_GLOBAL_ENABLES 0x00002014
+#define CS35L45_BLOCK_ENABLES 0x00002018
+#define CS35L45_BLOCK_ENABLES2 0x0000201C
+#define CS35L45_ERROR_RELEASE 0x00002034
+#define CS35L45_REFCLK_INPUT 0x00002C04
+#define CS35L45_GLOBAL_SAMPLE_RATE 0x00002C0C
+#define CS35L45_BOOST_CCM_CFG 0x00003808
+#define CS35L45_BOOST_DCM_CFG 0x0000380C
+#define CS35L45_BOOST_OV_CFG 0x0000382C
+#define CS35L45_ASP_ENABLES1 0x00004800
+#define CS35L45_ASP_CONTROL1 0x00004804
+#define CS35L45_ASP_CONTROL2 0x00004808
+#define CS35L45_ASP_CONTROL3 0x0000480C
+#define CS35L45_ASP_FRAME_CONTROL1 0x00004810
+#define CS35L45_ASP_FRAME_CONTROL2 0x00004814
+#define CS35L45_ASP_FRAME_CONTROL5 0x00004820
+#define CS35L45_ASP_DATA_CONTROL1 0x00004830
+#define CS35L45_ASP_DATA_CONTROL5 0x00004840
+#define CS35L45_DACPCM1_INPUT 0x00004C00
+#define CS35L45_ASPTX1_INPUT 0x00004C20
+#define CS35L45_ASPTX2_INPUT 0x00004C24
+#define CS35L45_ASPTX3_INPUT 0x00004C28
+#define CS35L45_ASPTX4_INPUT 0x00004C2C
+#define CS35L45_ASPTX5_INPUT 0x00004C30
+#define CS35L45_LDPM_CONFIG 0x00006404
+#define CS35L45_AMP_PCM_CONTROL 0x00007000
+#define CS35L45_AMP_PCM_HPF_TST 0x00007004
+#define CS35L45_IRQ1_EINT_4 0x0000E01C
+#define CS35L45_LASTREG 0x0000E01C
+
+/* SFT_RESET */
+#define CS35L45_SOFT_RESET_TRIGGER 0x5A000000
+
+/* GLOBAL_ENABLES */
+#define CS35L45_GLOBAL_EN_SHIFT 0
+#define CS35L45_GLOBAL_EN_MASK BIT(0)
+
+/* BLOCK_ENABLES */
+#define CS35L45_IMON_EN_SHIFT 13
+#define CS35L45_VMON_EN_SHIFT 12
+#define CS35L45_VDD_BSTMON_EN_SHIFT 9
+#define CS35L45_VDD_BATTMON_EN_SHIFT 8
+#define CS35L45_BST_EN_SHIFT 4
+#define CS35L45_BST_EN_MASK GENMASK(5, 4)
+
+#define CS35L45_BST_DISABLE_FET_ON 0x01
+
+/* BLOCK_ENABLES2 */
+#define CS35L45_ASP_EN_SHIFT 27
+
+/* ERROR_RELEASE */
+#define CS35L45_GLOBAL_ERR_RLS_MASK BIT(11)
+
+/* REFCLK_INPUT */
+#define CS35L45_PLL_FORCE_EN_SHIFT 16
+#define CS35L45_PLL_FORCE_EN_MASK BIT(16)
+#define CS35L45_PLL_OPEN_LOOP_SHIFT 11
+#define CS35L45_PLL_OPEN_LOOP_MASK BIT(11)
+#define CS35L45_PLL_REFCLK_FREQ_SHIFT 5
+#define CS35L45_PLL_REFCLK_FREQ_MASK GENMASK(10, 5)
+#define CS35L45_PLL_REFCLK_EN_SHIFT 4
+#define CS35L45_PLL_REFCLK_EN_MASK BIT(4)
+#define CS35L45_PLL_REFCLK_SEL_SHIFT 0
+#define CS35L45_PLL_REFCLK_SEL_MASK GENMASK(2, 0)
+
+#define CS35L45_PLL_REFCLK_SEL_BCLK 0x0
+
+/* GLOBAL_SAMPLE_RATE */
+#define CS35L45_GLOBAL_FS_SHIFT 0
+#define CS35L45_GLOBAL_FS_MASK GENMASK(4, 0)
+
+#define CS35L45_48P0_KHZ 0x03
+#define CS35L45_96P0_KHZ 0x04
+#define CS35L45_44P100_KHZ 0x0B
+#define CS35L45_88P200_KHZ 0x0C
+
+/* ASP_ENABLES_1 */
+#define CS35L45_ASP_RX2_EN_SHIFT 17
+#define CS35L45_ASP_RX1_EN_SHIFT 16
+#define CS35L45_ASP_TX5_EN_SHIFT 4
+#define CS35L45_ASP_TX4_EN_SHIFT 3
+#define CS35L45_ASP_TX3_EN_SHIFT 2
+#define CS35L45_ASP_TX2_EN_SHIFT 1
+#define CS35L45_ASP_TX1_EN_SHIFT 0
+
+/* ASP_CONTROL2 */
+#define CS35L45_ASP_WIDTH_RX_SHIFT 24
+#define CS35L45_ASP_WIDTH_RX_MASK GENMASK(31, 24)
+#define CS35L45_ASP_WIDTH_TX_SHIFT 16
+#define CS35L45_ASP_WIDTH_TX_MASK GENMASK(23, 16)
+#define CS35L45_ASP_FMT_SHIFT 8
+#define CS35L45_ASP_FMT_MASK GENMASK(10, 8)
+#define CS35L45_ASP_BCLK_INV_SHIFT 6
+#define CS35L45_ASP_BCLK_INV_MASK BIT(6)
+#define CS35L45_ASP_FSYNC_INV_SHIFT 2
+#define CS35L45_ASP_FSYNC_INV_MASK BIT(2)
+
+#define CS35l45_ASP_FMT_DSP_A 0
+#define CS35L45_ASP_FMT_I2S 2
+
+/* ASP_CONTROL3 */
+#define CS35L45_ASP_DOUT_HIZ_CTRL_SHIFT 0
+#define CS35L45_ASP_DOUT_HIZ_CTRL_MASK GENMASK(1, 0)
+
+/* ASP_FRAME_CONTROL1 */
+#define CS35L45_ASP_TX4_SLOT_SHIFT 24
+#define CS35L45_ASP_TX4_SLOT_MASK GENMASK(29, 24)
+#define CS35L45_ASP_TX3_SLOT_SHIFT 16
+#define CS35L45_ASP_TX3_SLOT_MASK GENMASK(21, 16)
+#define CS35L45_ASP_TX2_SLOT_SHIFT 8
+#define CS35L45_ASP_TX2_SLOT_MASK GENMASK(13, 8)
+#define CS35L45_ASP_TX1_SLOT_SHIFT 0
+#define CS35L45_ASP_TX1_SLOT_MASK GENMASK(5, 0)
+
+#define CS35L45_ASP_TX_ALL_SLOTS (CS35L45_ASP_TX4_SLOT_MASK | \
+ CS35L45_ASP_TX3_SLOT_MASK | \
+ CS35L45_ASP_TX2_SLOT_MASK | \
+ CS35L45_ASP_TX1_SLOT_MASK)
+/* ASP_FRAME_CONTROL5 */
+#define CS35L45_ASP_RX2_SLOT_SHIFT 8
+#define CS35L45_ASP_RX2_SLOT_MASK GENMASK(13, 8)
+#define CS35L45_ASP_RX1_SLOT_SHIFT 0
+#define CS35L45_ASP_RX1_SLOT_MASK GENMASK(5, 0)
+
+#define CS35L45_ASP_RX_ALL_SLOTS (CS35L45_ASP_RX2_SLOT_MASK | \
+ CS35L45_ASP_RX1_SLOT_MASK)
+
+/* ASP_DATA_CONTROL1 */
+/* ASP_DATA_CONTROL5 */
+#define CS35L45_ASP_WL_SHIFT 0
+#define CS35L45_ASP_WL_MASK GENMASK(5, 0)
+
+/* AMP_PCM_CONTROL */
+#define CS35L45_AMP_VOL_PCM_SHIFT 0
+#define CS35L45_AMP_VOL_PCM_WIDTH 11
+
+/* AMP_PCM_HPF_TST */
+#define CS35l45_HPF_DEFAULT 0x00000000
+#define CS35L45_HPF_44P1 0x000108BD
+#define CS35L45_HPF_88P2 0x0001045F
+
+/* IRQ1_EINT_4 */
+#define CS35L45_OTP_BOOT_DONE_STS_MASK BIT(1)
+#define CS35L45_OTP_BUSY_MASK BIT(0)
+
+/* Mixer sources */
+#define CS35L45_PCM_SRC_MASK 0x7F
+#define CS35L45_PCM_SRC_ZERO 0x00
+#define CS35L45_PCM_SRC_ASP_RX1 0x08
+#define CS35L45_PCM_SRC_ASP_RX2 0x09
+#define CS35L45_PCM_SRC_VMON 0x18
+#define CS35L45_PCM_SRC_IMON 0x19
+#define CS35L45_PCM_SRC_ERR_VOL 0x20
+#define CS35L45_PCM_SRC_CLASSH_TGT 0x21
+#define CS35L45_PCM_SRC_VDD_BATTMON 0x28
+#define CS35L45_PCM_SRC_VDD_BSTMON 0x29
+#define CS35L45_PCM_SRC_TEMPMON 0x3A
+#define CS35L45_PCM_SRC_INTERPOLATOR 0x40
+#define CS35L45_PCM_SRC_IL_TARGET 0x48
+
+#define CS35L45_RESET_HOLD_US 2000
+#define CS35L45_RESET_US 2000
+#define CS35L45_POST_GLOBAL_EN_US 5000
+#define CS35L45_PRE_GLOBAL_DIS_US 3000
+
+#define CS35L45_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S24_3LE| \
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+#define CS35L45_RATES (SNDRV_PCM_RATE_44100 | \
+ SNDRV_PCM_RATE_48000 | \
+ SNDRV_PCM_RATE_88200 | \
+ SNDRV_PCM_RATE_96000)
+
+struct cs35l45_private {
+ struct device *dev;
+ struct regmap *regmap;
+ struct gpio_desc *reset_gpio;
+ struct regulator *vdd_batt;
+ struct regulator *vdd_a;
+ bool initialized;
+ bool sysclk_set;
+ u8 slot_width;
+ u8 slot_count;
+};
+
+extern const struct dev_pm_ops cs35l45_pm_ops;
+extern const struct regmap_config cs35l45_i2c_regmap;
+extern const struct regmap_config cs35l45_spi_regmap;
+int cs35l45_apply_patch(struct cs35l45_private *cs43l45);
+unsigned int cs35l45_get_clk_freq_id(unsigned int freq);
+int cs35l45_probe(struct cs35l45_private *cs35l45);
+int cs35l45_remove(struct cs35l45_private *cs35l45);
+
+#endif /* CS35L45_H */
--
2.30.2