linux-imx

/*

 * Ingenic SoCs pinctrl driver

 *

 * Copyright (c) 2017 Paul Cercueil <paul@crapouillou.net>

 *

 * License terms: GNU General Public License (GPL) version 2

 */

​

#include <linux/compiler.h>

#include <linux/gpio/driver.h>

#include <linux/interrupt.h>

#include <linux/io.h>

#include <linux/of_device.h>

#include <linux/of_irq.h>

#include <linux/of_platform.h>

#include <linux/pinctrl/pinctrl.h>

#include <linux/pinctrl/pinmux.h>

#include <linux/pinctrl/pinconf.h>

#include <linux/pinctrl/pinconf-generic.h>

#include <linux/platform_device.h>

#include <linux/regmap.h>

#include <linux/slab.h>

​

#include "core.h"

#include "pinconf.h"

#include "pinmux.h"

​

#define GPIO_PIN    0x00

#define GPIO_MSK    0x20

​

#define JZ4740_GPIO_DATA    0x10

#define JZ4740_GPIO_PULL_DIS    0x30

#define JZ4740_GPIO_FUNC    0x40

#define JZ4740_GPIO_SELECT  0x50

#define JZ4740_GPIO_DIR     0x60

#define JZ4740_GPIO_TRIG    0x70

#define JZ4740_GPIO_FLAG    0x80

​

#define JZ4770_GPIO_INT     0x10

#define JZ4770_GPIO_PAT1    0x30

#define JZ4770_GPIO_PAT0    0x40

#define JZ4770_GPIO_FLAG    0x50

#define JZ4770_GPIO_PEN     0x70

​

#define REG_SET(x) ((x) + 0x4)

#define REG_CLEAR(x) ((x) + 0x8)

​

#define PINS_PER_GPIO_CHIP 32

​

enum jz_version {

    ID_JZ4740,

    ID_JZ4725B,

    ID_JZ4770,

    ID_JZ4780,

};

​

struct ingenic_chip_info {

    unsigned int num_chips;

​

    const struct group_desc *groups;

    unsigned int num_groups;

​

    const struct function_desc *functions;

    unsigned int num_functions;

​

    const u32 *pull_ups, *pull_downs;

};

​

struct ingenic_pinctrl {

    struct device *dev;

    struct regmap *map;

    struct pinctrl_dev *pctl;

    struct pinctrl_pin_desc *pdesc;

    enum jz_version version;

​

    const struct ingenic_chip_info *info;

};

​

struct ingenic_gpio_chip {

    struct ingenic_pinctrl *jzpc;

    struct gpio_chip gc;

    struct irq_chip irq_chip;

    unsigned int irq, reg_base;

};

​

static const u32 jz4740_pull_ups[4] = {

    0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,

};

​

static const u32 jz4740_pull_downs[4] = {

    0x00000000, 0x00000000, 0x00000000, 0x00000000,

};