#ifndef PINCTRL_PINCTRL_NOMADIK_H
#define PINCTRL_PINCTRL_NOMADIK_H

/* Package definitions */
#define PINCTRL_NMK_STN8815     0
#define PINCTRL_NMK_DB8500      1
#define PINCTRL_NMK_DB8540      2

/* Alternate functions: function C is set in hw by setting both A and B */
#define NMK_GPIO_ALT_GPIO       0
#define NMK_GPIO_ALT_A  1
#define NMK_GPIO_ALT_B  2
#define NMK_GPIO_ALT_C  (NMK_GPIO_ALT_A | NMK_GPIO_ALT_B)

#define NMK_GPIO_ALT_CX_SHIFT 2
#define NMK_GPIO_ALT_C1 ((1<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C)
#define NMK_GPIO_ALT_C2 ((2<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C)
#define NMK_GPIO_ALT_C3 ((3<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C)
#define NMK_GPIO_ALT_C4 ((4<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C)

#define PRCM_GPIOCR_ALTCX(pin_num,\
        altc1_used, altc1_ri, altc1_cb,\
        altc2_used, altc2_ri, altc2_cb,\
        altc3_used, altc3_ri, altc3_cb,\
        altc4_used, altc4_ri, altc4_cb)\
{\
        .pin = pin_num,\
        .altcx[PRCM_IDX_GPIOCR_ALTC1] = {\
                .used = altc1_used,\
                .reg_index = altc1_ri,\
                .control_bit = altc1_cb\
        },\
        .altcx[PRCM_IDX_GPIOCR_ALTC2] = {\
                .used = altc2_used,\
                .reg_index = altc2_ri,\
                .control_bit = altc2_cb\
        },\
        .altcx[PRCM_IDX_GPIOCR_ALTC3] = {\
                .used = altc3_used,\
                .reg_index = altc3_ri,\
                .control_bit = altc3_cb\
        },\
        .altcx[PRCM_IDX_GPIOCR_ALTC4] = {\
                .used = altc4_used,\
                .reg_index = altc4_ri,\
                .control_bit = altc4_cb\
        },\
}

/**
 * enum prcm_gpiocr_reg_index
 * Used to reference an PRCM GPIOCR register address.
 */
enum prcm_gpiocr_reg_index {
        PRCM_IDX_GPIOCR1,
        PRCM_IDX_GPIOCR2,
        PRCM_IDX_GPIOCR3
};
/**
 * enum prcm_gpiocr_altcx_index
 * Used to reference an Other alternate-C function.
 */
enum prcm_gpiocr_altcx_index {
        PRCM_IDX_GPIOCR_ALTC1,
        PRCM_IDX_GPIOCR_ALTC2,
        PRCM_IDX_GPIOCR_ALTC3,
        PRCM_IDX_GPIOCR_ALTC4,
        PRCM_IDX_GPIOCR_ALTC_MAX,
};

/**
 * struct prcm_gpio_altcx - Other alternate-C function
 * @used: other alternate-C function availability
 * @reg_index: PRCM GPIOCR register index used to control the function
 * @control_bit: PRCM GPIOCR bit used to control the function
 */
struct prcm_gpiocr_altcx {
        bool used:1;
        u8 reg_index:2;
        u8 control_bit:5;
} __packed;

/**
 * struct prcm_gpio_altcx_pin_desc - Other alternate-C pin
 * @pin: The pin number
 * @altcx: array of other alternate-C[1-4] functions
 */
struct prcm_gpiocr_altcx_pin_desc {
        unsigned short pin;
        struct prcm_gpiocr_altcx altcx[PRCM_IDX_GPIOCR_ALTC_MAX];
};

/**
 * struct nmk_function - Nomadik pinctrl mux function
 * @name: The name of the function, exported to pinctrl core.
 * @groups: An array of pin groups that may select this function.
 * @ngroups: The number of entries in @groups.
 */
struct nmk_function {
        const char *name;
        const char * const *groups;
        unsigned ngroups;
};

/**
 * struct nmk_pingroup - describes a Nomadik pin group
 * @name: the name of this specific pin group
 * @pins: an array of discrete physical pins used in this group, taken
 *      from the driver-local pin enumeration space
 * @num_pins: the number of pins in this group array, i.e. the number of
 *      elements in .pins so we can iterate over that array
 * @altsetting: the altsetting to apply to all pins in this group to
 *      configure them to be used by a function
 */
struct nmk_pingroup {
        const char *name;
        const unsigned int *pins;
        const unsigned npins;
        int altsetting;
};

/**
 * struct nmk_pinctrl_soc_data - Nomadik pin controller per-SoC configuration
 * @gpio_ranges: An array of GPIO ranges for this SoC
 * @gpio_num_ranges: The number of GPIO ranges for this SoC
 * @pins:       An array describing all pins the pin controller affects.
 *              All pins which are also GPIOs must be listed first within the
 *              array, and be numbered identically to the GPIO controller's
 *              numbering.
 * @npins:      The number of entries in @pins.
 * @functions:  The functions supported on this SoC.
 * @nfunction:  The number of entries in @functions.
 * @groups:     An array describing all pin groups the pin SoC supports.
 * @ngroups:    The number of entries in @groups.
 * @altcx_pins: The pins that support Other alternate-C function on this SoC
 * @npins_altcx: The number of Other alternate-C pins
 * @prcm_gpiocr_registers: The array of PRCM GPIOCR registers on this SoC
 */
struct nmk_pinctrl_soc_data {
        struct pinctrl_gpio_range *gpio_ranges;
        unsigned gpio_num_ranges;
        const struct pinctrl_pin_desc *pins;
        unsigned npins;
        const struct nmk_function *functions;
        unsigned nfunctions;
        const struct nmk_pingroup *groups;
        unsigned ngroups;
        const struct prcm_gpiocr_altcx_pin_desc *altcx_pins;
        unsigned npins_altcx;
        const u16 *prcm_gpiocr_registers;
};

#ifdef CONFIG_PINCTRL_STN8815

void nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc);

#else

static inline void
nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc)
{
}

#endif

#ifdef CONFIG_PINCTRL_DB8500

void nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc);

#else

static inline void
nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc)
{
}

#endif

#ifdef CONFIG_PINCTRL_DB8540

void nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc);

#else

static inline void
nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc)
{
}

#endif

#endif /* PINCTRL_PINCTRL_NOMADIK_H */