linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * Copyright (C) 2018 Rafał Miłecki <rafal@milecki.pl>

 */

​

#include <linux/err.h>

#include <linux/io.h>

#include <linux/mfd/syscon.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/of_device.h>

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

#include <linux/pinctrl/pinctrl.h>

#include <linux/pinctrl/pinmux.h>

#include <linux/platform_device.h>

#include <linux/regmap.h>

#include <linux/slab.h>

​

#define FLAG_BCM4708        BIT(1)

#define FLAG_BCM4709        BIT(2)

#define FLAG_BCM53012       BIT(3)

​

struct ns_pinctrl {

    struct device *dev;

    unsigned int chipset_flag;

    struct pinctrl_dev *pctldev;

    struct regmap *regmap;

    u32 offset;

​

    struct pinctrl_desc pctldesc;

    struct ns_pinctrl_group *groups;

    unsigned int num_groups;

    struct ns_pinctrl_function *functions;

    unsigned int num_functions;

};

​

/*

 * 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;

    const unsigned int *pins;

    const unsigned int num_pins;

    unsigned int chipsets;

};

​

static const unsigned int spi_pins[] = { 0, 1, 2, 3 };

static const unsigned int i2c_pins[] = { 4, 5 };

static const unsigned int mdio_pins[] = { 6, 7 };

static const unsigned int pwm0_pins[] = { 8 };

static const unsigned int pwm1_pins[] = { 9 };

static const unsigned int pwm2_pins[] = { 10 };

static const unsigned int pwm3_pins[] = { 11 };

static const unsigned int uart1_pins[] = { 12, 13, 14, 15 };

static const unsigned int uart2_pins[] = { 16, 17 };

static const unsigned int sdio_pwr_pins[] = { 22 };

static const unsigned int sdio_1p8v_pins[] = { 23 };

​

#define NS_GROUP(_name, _pins, _chipsets)       \

{                           \

    .name = _name,                  \

    .pins = _pins,                  \

    .num_pins = ARRAY_SIZE(_pins),          \