sound/soc/codecs/rt5668.c

File Facts

System

Linux kernel

Corpus path

sound/soc/codecs/rt5668.c

Extension

.c

Size

71780 bytes

Lines

2585

Domain

Driver Families

Bucket

sound/soc

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/moduleparam.h
• linux/init.h
• linux/delay.h
• linux/pm.h
• linux/i2c.h
• linux/platform_device.h
• linux/spi/spi.h
• linux/acpi.h
• linux/gpio/consumer.h
• linux/regulator/consumer.h
• linux/mutex.h
• sound/core.h
• sound/pcm.h
• sound/pcm_params.h
• sound/jack.h
• sound/soc.h
• sound/soc-dapm.h
• sound/initval.h
• sound/tlv.h
• sound/rt5668.h
• rl6231.h
• rt5668.h

Detected Declarations

• struct rt5668_priv
• function rt5668_volatile_register
• function rt5668_readable_register
• function rt5668_reset
• function rt5668_button_detect
• function rt5668_enable_push_button_irq
• function rt5668_headset_detect
• function rt5668_irq
• function rt5668_jd_check_handler
• function rt5668_set_jack_detect
• function rt5668_jack_detect_handler
• function rt5668_div_sel
• function set_dmic_clk
• function set_filter_clk
• function is_sys_clk_from_pll1
• function is_using_asrc
• function rt5668_hp_event
• function set_dmic_power
• function rt5655_set_verf
• function rt5668_set_tdm_slot
• function rt5668_hw_params
• function rt5668_set_dai_fmt
• function rt5668_set_component_sysclk
• function rt5668_set_component_pll
• function rt5668_set_bclk_ratio
• function rt5668_set_bias_level
• function rt5668_probe
• function rt5668_remove
• function rt5668_suspend
• function rt5668_resume
• function rt5668_parse_dt
• function rt5668_calibrate
• function rt5668_i2c_probe
• function rt5668_i2c_shutdown

Annotated Snippet

struct rt5668_priv {
	struct snd_soc_component *component;
	struct rt5668_platform_data pdata;
	struct gpio_desc *ldo1_en;
	struct regmap *regmap;
	struct snd_soc_jack *hs_jack;
	struct regulator_bulk_data supplies[RT5668_NUM_SUPPLIES];
	struct delayed_work jack_detect_work;
	struct delayed_work jd_check_work;
	struct mutex calibrate_mutex;

	int sysclk;
	int sysclk_src;
	int lrck[RT5668_AIFS];
	int bclk[RT5668_AIFS];
	int master[RT5668_AIFS];

	int pll_src;
	int pll_in;
	int pll_out;

	int jack_type;
};

static const struct reg_default rt5668_reg[] = {
	{0x0002, 0x8080},
	{0x0003, 0x8000},
	{0x0005, 0x0000},
	{0x0006, 0x0000},
	{0x0008, 0x800f},
	{0x000b, 0x0000},
	{0x0010, 0x4040},
	{0x0011, 0x0000},
	{0x0012, 0x1404},
	{0x0013, 0x1000},
	{0x0014, 0xa00a},
	{0x0015, 0x0404},
	{0x0016, 0x0404},
	{0x0019, 0xafaf},
	{0x001c, 0x2f2f},
	{0x001f, 0x0000},
	{0x0022, 0x5757},
	{0x0023, 0x0039},
	{0x0024, 0x000b},
	{0x0026, 0xc0c4},
	{0x0029, 0x8080},
	{0x002a, 0xa0a0},
	{0x002b, 0x0300},
	{0x0030, 0x0000},
	{0x003c, 0x0080},
	{0x0044, 0x0c0c},
	{0x0049, 0x0000},
	{0x0061, 0x0000},
	{0x0062, 0x0000},
	{0x0063, 0x003f},
	{0x0064, 0x0000},
	{0x0065, 0x0000},
	{0x0066, 0x0030},
	{0x0067, 0x0000},
	{0x006b, 0x0000},
	{0x006c, 0x0000},
	{0x006d, 0x2200},
	{0x006e, 0x0a10},
	{0x0070, 0x8000},
	{0x0071, 0x8000},
	{0x0073, 0x0000},
	{0x0074, 0x0000},
	{0x0075, 0x0002},
	{0x0076, 0x0001},
	{0x0079, 0x0000},
	{0x007a, 0x0000},
	{0x007b, 0x0000},
	{0x007c, 0x0100},
	{0x007e, 0x0000},
	{0x0080, 0x0000},
	{0x0081, 0x0000},
	{0x0082, 0x0000},
	{0x0083, 0x0000},
	{0x0084, 0x0000},
	{0x0085, 0x0000},
	{0x0086, 0x0005},
	{0x0087, 0x0000},
	{0x0088, 0x0000},
	{0x008c, 0x0003},
	{0x008d, 0x0000},
	{0x008e, 0x0060},
	{0x008f, 0x1000},
	{0x0091, 0x0c26},
	{0x0092, 0x0073},
	{0x0093, 0x0000},

Annotation

• Immediate include surface: `linux/module.h`, `linux/moduleparam.h`, `linux/init.h`, `linux/delay.h`, `linux/pm.h`, `linux/i2c.h`, `linux/platform_device.h`, `linux/spi/spi.h`.
• Detected declarations: `struct rt5668_priv`, `function rt5668_volatile_register`, `function rt5668_readable_register`, `function rt5668_reset`, `function rt5668_button_detect`, `function rt5668_enable_push_button_irq`, `function rt5668_headset_detect`, `function rt5668_irq`, `function rt5668_jd_check_handler`, `function rt5668_set_jack_detect`.
• Atlas domain: Driver Families / sound/soc.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.