drivers/pinctrl/pinctrl-k210.c

Source file repositories/reference/linux-study-clean/drivers/pinctrl/pinctrl-k210.c

File Facts

System
Linux kernel
Corpus path
drivers/pinctrl/pinctrl-k210.c
Extension
.c
Size
26285 bytes
Lines
978
Domain
Driver Families
Bucket
drivers/pinctrl
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct k210_fpioa {
	u32 pins[48];
	u32 tie_en[8];
	u32 tie_val[8];
};

struct k210_fpioa_data {

	struct device *dev;
	struct pinctrl_dev *pctl;

	struct k210_fpioa __iomem *fpioa;
	struct regmap *sysctl_map;
	u32 power_offset;
};

#define K210_PIN_NAME(i)	("IO_" #i)
#define K210_PIN(i)		[(i)] = PINCTRL_PIN((i), K210_PIN_NAME(i))

static const struct pinctrl_pin_desc k210_pins[] = {
	K210_PIN(0),  K210_PIN(1),  K210_PIN(2),
	K210_PIN(3),  K210_PIN(4),  K210_PIN(5),
	K210_PIN(6),  K210_PIN(7),  K210_PIN(8),
	K210_PIN(9),  K210_PIN(10), K210_PIN(11),
	K210_PIN(12), K210_PIN(13), K210_PIN(14),
	K210_PIN(15), K210_PIN(16), K210_PIN(17),
	K210_PIN(18), K210_PIN(19), K210_PIN(20),
	K210_PIN(21), K210_PIN(22), K210_PIN(23),
	K210_PIN(24), K210_PIN(25), K210_PIN(26),
	K210_PIN(27), K210_PIN(28), K210_PIN(29),
	K210_PIN(30), K210_PIN(31), K210_PIN(32),
	K210_PIN(33), K210_PIN(34), K210_PIN(35),
	K210_PIN(36), K210_PIN(37), K210_PIN(38),
	K210_PIN(39), K210_PIN(40), K210_PIN(41),
	K210_PIN(42), K210_PIN(43), K210_PIN(44),
	K210_PIN(45), K210_PIN(46), K210_PIN(47)
};

#define K210_NPINS ARRAY_SIZE(k210_pins)

/*
 * Pin groups: each of the 48 programmable pins is a group.
 * To this are added 8 power domain groups, which for the purposes of
 * the pin subsystem, contain no pins. The power domain groups only exist
 * to set the power level. The id should never be used (since there are
 * no pins 48-55).
 */
static const char *const k210_group_names[] = {
	/* The first 48 groups are for pins, one each */
	K210_PIN_NAME(0),  K210_PIN_NAME(1),  K210_PIN_NAME(2),
	K210_PIN_NAME(3),  K210_PIN_NAME(4),  K210_PIN_NAME(5),
	K210_PIN_NAME(6),  K210_PIN_NAME(7),  K210_PIN_NAME(8),
	K210_PIN_NAME(9),  K210_PIN_NAME(10), K210_PIN_NAME(11),
	K210_PIN_NAME(12), K210_PIN_NAME(13), K210_PIN_NAME(14),
	K210_PIN_NAME(15), K210_PIN_NAME(16), K210_PIN_NAME(17),
	K210_PIN_NAME(18), K210_PIN_NAME(19), K210_PIN_NAME(20),
	K210_PIN_NAME(21), K210_PIN_NAME(22), K210_PIN_NAME(23),
	K210_PIN_NAME(24), K210_PIN_NAME(25), K210_PIN_NAME(26),
	K210_PIN_NAME(27), K210_PIN_NAME(28), K210_PIN_NAME(29),
	K210_PIN_NAME(30), K210_PIN_NAME(31), K210_PIN_NAME(32),
	K210_PIN_NAME(33), K210_PIN_NAME(34), K210_PIN_NAME(35),
	K210_PIN_NAME(36), K210_PIN_NAME(37), K210_PIN_NAME(38),
	K210_PIN_NAME(39), K210_PIN_NAME(40), K210_PIN_NAME(41),
	K210_PIN_NAME(42), K210_PIN_NAME(43), K210_PIN_NAME(44),
	K210_PIN_NAME(45), K210_PIN_NAME(46), K210_PIN_NAME(47),
	[48] = "A0", [49] = "A1", [50] = "A2",
	[51] = "B3", [52] = "B4", [53] = "B5",
	[54] = "C6", [55] = "C7"
};

#define K210_NGROUPS	ARRAY_SIZE(k210_group_names)

enum k210_pinctrl_mode_id {
	K210_PC_DEFAULT_DISABLED,
	K210_PC_DEFAULT_IN,
	K210_PC_DEFAULT_IN_TIE,
	K210_PC_DEFAULT_OUT,
	K210_PC_DEFAULT_I2C,
	K210_PC_DEFAULT_SCCB,
	K210_PC_DEFAULT_SPI,
	K210_PC_DEFAULT_GPIO,
	K210_PC_DEFAULT_INT13,
};

#define K210_PC_DEFAULT(mode) \
	[K210_PC_DEFAULT_##mode] = K210_PC_MODE_##mode

static const u32 k210_pinconf_mode_id_to_mode[] = {
	[K210_PC_DEFAULT_DISABLED] = 0,
	K210_PC_DEFAULT(IN),

Annotation

Implementation Notes