linux-imx

/* SPDX-License-Identifier: GPL-2.0+ */

/*

 * IMX pinmux core definitions

 *

 * Copyright (C) 2012 Freescale Semiconductor, Inc.

 * Copyright (C) 2012 Linaro Ltd.

 *

 * Author: Dong Aisheng <dong.aisheng@linaro.org>

 */

​

#ifndef __DRIVERS_PINCTRL_IMX_H

#define __DRIVERS_PINCTRL_IMX_H

​

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

#include <linux/pinctrl/pinmux.h>

​

struct platform_device;

​

extern struct pinmux_ops imx_pmx_ops;

​

/**

 * struct imx_pin_mmio - MMIO pin configurations

 * @mux_mode: the mux mode for this pin.

 * @input_reg: the select input register offset for this pin if any

 *  0 if no select input setting needed.

 * @input_val: the select input value for this pin.

 * @configs: the config for this pin.

 */

struct imx_pin_mmio {

    unsigned int mux_mode;

    u16 input_reg;

    unsigned int input_val;

    unsigned long config;

};

​

/**

 * struct imx_pin_scu - SCU pin configurations

 * @mux: the mux mode for this pin.

 * @configs: the config for this pin.

 */

struct imx_pin_scu {

    unsigned int mux_mode;

    unsigned long config;

};

​

/**

 * struct imx_pin - describes a single i.MX pin

 * @pin: the pin_id of this pin

 * @conf: config type of this pin, either mmio or scu

 */

struct imx_pin {

    unsigned int pin;

    union {

        struct imx_pin_mmio mmio;

        struct imx_pin_scu scu;

    } conf;

};

​

/**

 * struct imx_pin_reg - describe a pin reg map

 * @mux_reg: mux register offset

 * @conf_reg: config register offset

 */

struct imx_pin_reg {

    s16 mux_reg;

    s16 conf_reg;

};

​

/* decode a generic config into raw register value */

struct imx_cfg_params_decode {

    enum pin_config_param param;

    u32 mask;

    u8 shift;

    bool invert;

};

​

struct imx_pinctrl_soc_info {

    const struct pinctrl_pin_desc *pins;

    unsigned int npins;

    unsigned int flags;

    const char *gpr_compatible;

​

    /* MUX_MODE shift and mask in case SHARE_MUX_CONF_REG */

    unsigned int mux_mask;

    u8 mux_shift;

​

    /* generic pinconf */

    bool generic_pinconf;

    const struct pinconf_generic_params *custom_params;

    unsigned int num_custom_params;

    const struct imx_cfg_params_decode *decodes;

    unsigned int num_decodes;