drivers/pinctrl/spear/pinctrl-spear300.c

Source file repositories/reference/linux-study-clean/drivers/pinctrl/spear/pinctrl-spear300.c

File Facts

System
Linux kernel
Corpus path
drivers/pinctrl/spear/pinctrl-spear300.c
Extension
.c
Size
16932 bytes
Lines
686
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

#include <linux/err.h>
#include <linux/init.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
#include "pinctrl-spear3xx.h"

#define DRIVER_NAME "spear300-pinmux"

/* addresses */
#define PMX_CONFIG_REG			0x00
#define MODE_CONFIG_REG			0x04

/* modes */
#define NAND_MODE			(1 << 0)
#define NOR_MODE			(1 << 1)
#define PHOTO_FRAME_MODE		(1 << 2)
#define LEND_IP_PHONE_MODE		(1 << 3)
#define HEND_IP_PHONE_MODE		(1 << 4)
#define LEND_WIFI_PHONE_MODE		(1 << 5)
#define HEND_WIFI_PHONE_MODE		(1 << 6)
#define ATA_PABX_WI2S_MODE		(1 << 7)
#define ATA_PABX_I2S_MODE		(1 << 8)
#define CAML_LCDW_MODE			(1 << 9)
#define CAMU_LCD_MODE			(1 << 10)
#define CAMU_WLCD_MODE			(1 << 11)
#define CAML_LCD_MODE			(1 << 12)

static struct spear_pmx_mode pmx_mode_nand = {
	.name = "nand",
	.mode = NAND_MODE,
	.reg = MODE_CONFIG_REG,
	.mask = 0x0000000F,
	.val = 0x00,
};

static struct spear_pmx_mode pmx_mode_nor = {
	.name = "nor",
	.mode = NOR_MODE,
	.reg = MODE_CONFIG_REG,
	.mask = 0x0000000F,
	.val = 0x01,
};

static struct spear_pmx_mode pmx_mode_photo_frame = {
	.name = "photo frame mode",
	.mode = PHOTO_FRAME_MODE,
	.reg = MODE_CONFIG_REG,
	.mask = 0x0000000F,
	.val = 0x02,
};

static struct spear_pmx_mode pmx_mode_lend_ip_phone = {
	.name = "lend ip phone mode",
	.mode = LEND_IP_PHONE_MODE,
	.reg = MODE_CONFIG_REG,
	.mask = 0x0000000F,
	.val = 0x03,
};

static struct spear_pmx_mode pmx_mode_hend_ip_phone = {
	.name = "hend ip phone mode",
	.mode = HEND_IP_PHONE_MODE,
	.reg = MODE_CONFIG_REG,
	.mask = 0x0000000F,
	.val = 0x04,
};

static struct spear_pmx_mode pmx_mode_lend_wifi_phone = {
	.name = "lend wifi phone mode",
	.mode = LEND_WIFI_PHONE_MODE,
	.reg = MODE_CONFIG_REG,
	.mask = 0x0000000F,
	.val = 0x05,
};

static struct spear_pmx_mode pmx_mode_hend_wifi_phone = {
	.name = "hend wifi phone mode",
	.mode = HEND_WIFI_PHONE_MODE,
	.reg = MODE_CONFIG_REG,
	.mask = 0x0000000F,
	.val = 0x06,
};

static struct spear_pmx_mode pmx_mode_ata_pabx_wi2s = {
	.name = "ata pabx wi2s mode",
	.mode = ATA_PABX_WI2S_MODE,
	.reg = MODE_CONFIG_REG,
	.mask = 0x0000000F,
	.val = 0x07,
};

Annotation

Implementation Notes