drivers/pinctrl/bcm/pinctrl-ns.c

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

File Facts

System
Linux kernel
Corpus path
drivers/pinctrl/bcm/pinctrl-ns.c
Extension
.c
Size
9419 bytes
Lines
299
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 ns_pinctrl {
	struct device *dev;
	unsigned int chipset_flag;
	struct pinctrl_dev *pctldev;
	void __iomem *base;

	struct pinctrl_desc pctldesc;
};

/*
 * Pins
 */

static const struct pinctrl_pin_desc ns_pinctrl_pins[] = {
	{ 0, "spi_clk", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 1, "spi_ss", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 2, "spi_mosi", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 3, "spi_miso", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 4, "i2c_scl", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 5, "i2c_sda", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 6, "mdc", (void *)(FLAG_BCM4709 | FLAG_BCM53012) },
	{ 7, "mdio", (void *)(FLAG_BCM4709 | FLAG_BCM53012) },
	{ 8, "pwm0", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 9, "pwm1", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 10, "pwm2", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 11, "pwm3", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 12, "uart1_rx", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 13, "uart1_tx", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 14, "uart1_cts", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 15, "uart1_rts", (void *)(FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012) },
	{ 16, "uart2_rx", (void *)(FLAG_BCM4709 | FLAG_BCM53012) },
	{ 17, "uart2_tx", (void *)(FLAG_BCM4709 | FLAG_BCM53012) },
/* TODO { ??, "xtal_out", (void *)(FLAG_BCM4709) }, */
	{ 22, "sdio_pwr", (void *)(FLAG_BCM4709 | FLAG_BCM53012) },
	{ 23, "sdio_en_1p8v", (void *)(FLAG_BCM4709 | FLAG_BCM53012) },
};

/*
 * Groups
 */

struct ns_pinctrl_group {
	const char *name;
	unsigned int *pins;
	const unsigned int num_pins;
	unsigned int chipsets;
};

static unsigned int spi_pins[] = { 0, 1, 2, 3 };
static unsigned int i2c_pins[] = { 4, 5 };
static unsigned int mdio_pins[] = { 6, 7 };
static unsigned int pwm0_pins[] = { 8 };
static unsigned int pwm1_pins[] = { 9 };
static unsigned int pwm2_pins[] = { 10 };
static unsigned int pwm3_pins[] = { 11 };
static unsigned int uart1_pins[] = { 12, 13, 14, 15 };
static unsigned int uart2_pins[] = { 16, 17 };
static unsigned int sdio_pwr_pins[] = { 22 };
static unsigned int sdio_1p8v_pins[] = { 23 };

#define NS_GROUP(_name, _pins, _chipsets)		\
{							\
	.name = _name,					\
	.pins = _pins,					\
	.num_pins = ARRAY_SIZE(_pins),			\
	.chipsets = _chipsets,				\
}

static const struct ns_pinctrl_group ns_pinctrl_groups[] = {
	NS_GROUP("spi_grp", spi_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
	NS_GROUP("i2c_grp", i2c_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
	NS_GROUP("mdio_grp", mdio_pins, FLAG_BCM4709 | FLAG_BCM53012),
	NS_GROUP("pwm0_grp", pwm0_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
	NS_GROUP("pwm1_grp", pwm1_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
	NS_GROUP("pwm2_grp", pwm2_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
	NS_GROUP("pwm3_grp", pwm3_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
	NS_GROUP("uart1_grp", uart1_pins, FLAG_BCM4708 | FLAG_BCM4709 | FLAG_BCM53012),
	NS_GROUP("uart2_grp", uart2_pins, FLAG_BCM4709 | FLAG_BCM53012),
	NS_GROUP("sdio_pwr_grp", sdio_pwr_pins, FLAG_BCM4709 | FLAG_BCM53012),
	NS_GROUP("sdio_1p8v_grp", sdio_1p8v_pins, FLAG_BCM4709 | FLAG_BCM53012),
};

/*
 * Functions
 */

struct ns_pinctrl_function {
	const char *name;
	const char * const *groups;
	const unsigned int num_groups;

Annotation

Implementation Notes