drivers/pinctrl/mediatek/pinctrl-mt7620.c

Source file repositories/reference/linux-study-clean/drivers/pinctrl/mediatek/pinctrl-mt7620.c

File Facts

System
Linux kernel
Corpus path
drivers/pinctrl/mediatek/pinctrl-mt7620.c
Extension
.c
Size
5051 bytes
Lines
138
Domain
Driver Families
Bucket
drivers/pinctrl
Inferred role
Driver Families: exported/initcall integration point
Status
integration 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

// SPDX-License-Identifier: GPL-2.0-only

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include "pinctrl-mtmips.h"

#define MT7620_GPIO_MODE_UART0_SHIFT	2
#define MT7620_GPIO_MODE_UART0_MASK	0x7
#define MT7620_GPIO_MODE_UART0(x)	((x) << MT7620_GPIO_MODE_UART0_SHIFT)
#define MT7620_GPIO_MODE_UARTF		0x0
#define MT7620_GPIO_MODE_PCM_UARTF	0x1
#define MT7620_GPIO_MODE_PCM_I2S	0x2
#define MT7620_GPIO_MODE_I2S_UARTF	0x3
#define MT7620_GPIO_MODE_PCM_GPIO	0x4
#define MT7620_GPIO_MODE_GPIO_UARTF	0x5
#define MT7620_GPIO_MODE_GPIO_I2S	0x6
#define MT7620_GPIO_MODE_GPIO		0x7

#define MT7620_GPIO_MODE_NAND		0
#define MT7620_GPIO_MODE_SD		1
#define MT7620_GPIO_MODE_ND_SD_GPIO	2
#define MT7620_GPIO_MODE_ND_SD_MASK	0x3
#define MT7620_GPIO_MODE_ND_SD_SHIFT	18

#define MT7620_GPIO_MODE_PCIE_RST	0
#define MT7620_GPIO_MODE_PCIE_REF	1
#define MT7620_GPIO_MODE_PCIE_GPIO	2
#define MT7620_GPIO_MODE_PCIE_MASK	0x3
#define MT7620_GPIO_MODE_PCIE_SHIFT	16

#define MT7620_GPIO_MODE_WDT_RST	0
#define MT7620_GPIO_MODE_WDT_REF	1
#define MT7620_GPIO_MODE_WDT_GPIO	2
#define MT7620_GPIO_MODE_WDT_MASK	0x3
#define MT7620_GPIO_MODE_WDT_SHIFT	21

#define MT7620_GPIO_MODE_MDIO		0
#define MT7620_GPIO_MODE_MDIO_REFCLK	1
#define MT7620_GPIO_MODE_MDIO_GPIO	2
#define MT7620_GPIO_MODE_MDIO_MASK	0x3
#define MT7620_GPIO_MODE_MDIO_SHIFT	7

#define MT7620_GPIO_MODE_I2C		0
#define MT7620_GPIO_MODE_UART1		5
#define MT7620_GPIO_MODE_RGMII1		9
#define MT7620_GPIO_MODE_RGMII2		10
#define MT7620_GPIO_MODE_SPI		11
#define MT7620_GPIO_MODE_SPI_REF_CLK	12
#define MT7620_GPIO_MODE_WLED		13
#define MT7620_GPIO_MODE_JTAG		15
#define MT7620_GPIO_MODE_EPHY		15
#define MT7620_GPIO_MODE_PA		20

static struct mtmips_pmx_func i2c_grp[] =  { FUNC("i2c", 0, 1, 2) };
static struct mtmips_pmx_func spi_grp[] = { FUNC("spi", 0, 3, 4) };
static struct mtmips_pmx_func uartlite_grp[] = { FUNC("uartlite", 0, 15, 2) };
static struct mtmips_pmx_func mdio_grp[] = {
	FUNC("mdio", MT7620_GPIO_MODE_MDIO, 22, 2),
	FUNC("refclk", MT7620_GPIO_MODE_MDIO_REFCLK, 22, 2),
};
static struct mtmips_pmx_func rgmii1_grp[] = { FUNC("rgmii1", 0, 24, 12) };
static struct mtmips_pmx_func refclk_grp[] = { FUNC("spi refclk", 0, 37, 3) };
static struct mtmips_pmx_func ephy_grp[] = { FUNC("ephy", 0, 40, 5) };
static struct mtmips_pmx_func rgmii2_grp[] = { FUNC("rgmii2", 0, 60, 12) };
static struct mtmips_pmx_func wled_grp[] = { FUNC("wled", 0, 72, 1) };
static struct mtmips_pmx_func pa_grp[] = { FUNC("pa", 0, 18, 4) };
static struct mtmips_pmx_func uartf_grp[] = {
	FUNC("uartf", MT7620_GPIO_MODE_UARTF, 7, 8),
	FUNC("pcm uartf", MT7620_GPIO_MODE_PCM_UARTF, 7, 8),
	FUNC("pcm i2s", MT7620_GPIO_MODE_PCM_I2S, 7, 8),
	FUNC("i2s uartf", MT7620_GPIO_MODE_I2S_UARTF, 7, 8),
	FUNC("pcm gpio", MT7620_GPIO_MODE_PCM_GPIO, 11, 4),
	FUNC("gpio uartf", MT7620_GPIO_MODE_GPIO_UARTF, 7, 4),
	FUNC("gpio i2s", MT7620_GPIO_MODE_GPIO_I2S, 7, 4),
};
static struct mtmips_pmx_func wdt_grp[] = {
	FUNC("wdt rst", 0, 17, 1),
	FUNC("wdt refclk", 0, 17, 1),
	};
static struct mtmips_pmx_func pcie_rst_grp[] = {
	FUNC("pcie rst", MT7620_GPIO_MODE_PCIE_RST, 36, 1),
	FUNC("pcie refclk", MT7620_GPIO_MODE_PCIE_REF, 36, 1)
};
static struct mtmips_pmx_func nd_sd_grp[] = {
	FUNC("nand", MT7620_GPIO_MODE_NAND, 45, 15),
	FUNC("sd", MT7620_GPIO_MODE_SD, 47, 13)
};

static struct mtmips_pmx_group mt7620a_pinmux_data[] = {

Annotation

Implementation Notes