// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include <linux/types.h>

#include <linux/pinctrl/pinctrl.h>
#include <linux/gpio/driver.h>

#include <linux/gpio/gpio-nomadik.h>

/* All the pins that can be used for GPIO and some other functions */
#define _GPIO(offset)           (offset)

#define STN8815_PIN_B4          _GPIO(0)
#define STN8815_PIN_D5          _GPIO(1)
#define STN8815_PIN_C5          _GPIO(2)
#define STN8815_PIN_A4          _GPIO(3)
#define STN8815_PIN_B5          _GPIO(4)
#define STN8815_PIN_D6          _GPIO(5)
#define STN8815_PIN_C6          _GPIO(6)
#define STN8815_PIN_B6          _GPIO(7)
#define STN8815_PIN_B10         _GPIO(8)
#define STN8815_PIN_A10         _GPIO(9)
#define STN8815_PIN_C11         _GPIO(10)
#define STN8815_PIN_B11         _GPIO(11)
#define STN8815_PIN_A11         _GPIO(12)
#define STN8815_PIN_C12         _GPIO(13)
#define STN8815_PIN_B12         _GPIO(14)
#define STN8815_PIN_A12         _GPIO(15)
#define STN8815_PIN_C13         _GPIO(16)
#define STN8815_PIN_B13         _GPIO(17)
#define STN8815_PIN_A13         _GPIO(18)
#define STN8815_PIN_D13         _GPIO(19)
#define STN8815_PIN_C14         _GPIO(20)
#define STN8815_PIN_B14         _GPIO(21)
#define STN8815_PIN_A14         _GPIO(22)
#define STN8815_PIN_D15         _GPIO(23)
#define STN8815_PIN_C15         _GPIO(24)
#define STN8815_PIN_B15         _GPIO(25)
#define STN8815_PIN_A15         _GPIO(26)
#define STN8815_PIN_C16         _GPIO(27)
#define STN8815_PIN_B16         _GPIO(28)
#define STN8815_PIN_A16         _GPIO(29)
#define STN8815_PIN_D17         _GPIO(30)
#define STN8815_PIN_C17         _GPIO(31)
#define STN8815_PIN_AB6         _GPIO(32)
#define STN8815_PIN_AA6         _GPIO(33)
#define STN8815_PIN_Y6          _GPIO(34)
#define STN8815_PIN_Y5          _GPIO(35)
#define STN8815_PIN_AA5         _GPIO(36)
#define STN8815_PIN_AB5         _GPIO(37)
#define STN8815_PIN_AB4         _GPIO(38)
#define STN8815_PIN_Y4          _GPIO(39)
#define STN8815_PIN_R1          _GPIO(40)
#define STN8815_PIN_R2          _GPIO(41)
#define STN8815_PIN_R3          _GPIO(42)
#define STN8815_PIN_P1          _GPIO(43)
#define STN8815_PIN_P2          _GPIO(44)
#define STN8815_PIN_P3          _GPIO(45)
#define STN8815_PIN_N1          _GPIO(46)
#define STN8815_PIN_N2          _GPIO(47)
#define STN8815_PIN_N3          _GPIO(48)
#define STN8815_PIN_M1          _GPIO(49)
#define STN8815_PIN_M3          _GPIO(50)
#define STN8815_PIN_M2          _GPIO(51)
#define STN8815_PIN_L1          _GPIO(52)
#define STN8815_PIN_L4          _GPIO(53)
#define STN8815_PIN_L3          _GPIO(54)
#define STN8815_PIN_L2          _GPIO(55)
#define STN8815_PIN_F3          _GPIO(56)
#define STN8815_PIN_F2          _GPIO(57)
#define STN8815_PIN_E1          _GPIO(58)
#define STN8815_PIN_E3          _GPIO(59)
#define STN8815_PIN_E2          _GPIO(60)
#define STN8815_PIN_E4          _GPIO(61)
#define STN8815_PIN_D3          _GPIO(62)
#define STN8815_PIN_D2          _GPIO(63)
#define STN8815_PIN_F21         _GPIO(64)
#define STN8815_PIN_F20         _GPIO(65)
#define STN8815_PIN_E22         _GPIO(66)
#define STN8815_PIN_D22         _GPIO(67)
#define STN8815_PIN_E21         _GPIO(68)
#define STN8815_PIN_E20         _GPIO(69)
#define STN8815_PIN_C22         _GPIO(70)
#define STN8815_PIN_D21         _GPIO(71)
#define STN8815_PIN_D20         _GPIO(72)
#define STN8815_PIN_C21         _GPIO(73)
#define STN8815_PIN_C20         _GPIO(74)
#define STN8815_PIN_C19         _GPIO(75)
#define STN8815_PIN_B20         _GPIO(76)
#define STN8815_PIN_B8          _GPIO(77)
#define STN8815_PIN_A8          _GPIO(78)
#define STN8815_PIN_C9          _GPIO(79)
#define STN8815_PIN_B9          _GPIO(80)
#define STN8815_PIN_A9          _GPIO(81)
#define STN8815_PIN_C10         _GPIO(82)
#define STN8815_PIN_K1          _GPIO(83)
#define STN8815_PIN_K3          _GPIO(84)
#define STN8815_PIN_K2          _GPIO(85)
#define STN8815_PIN_J1          _GPIO(86)
#define STN8815_PIN_J3          _GPIO(87)
#define STN8815_PIN_J2          _GPIO(88)
#define STN8815_PIN_H1          _GPIO(89)
#define STN8815_PIN_H3          _GPIO(90)
#define STN8815_PIN_H2          _GPIO(91)
#define STN8815_PIN_G1          _GPIO(92)
#define STN8815_PIN_G3          _GPIO(93)
#define STN8815_PIN_G2          _GPIO(94)
#define STN8815_PIN_F1          _GPIO(95)
#define STN8815_PIN_T20         _GPIO(96)
#define STN8815_PIN_R21         _GPIO(97)
#define STN8815_PIN_R20         _GPIO(98)
#define STN8815_PIN_U22         _GPIO(99)
#define STN8815_PIN_N21         _GPIO(100)
#define STN8815_PIN_N20         _GPIO(101)
#define STN8815_PIN_P22         _GPIO(102)
#define STN8815_PIN_N22         _GPIO(103)
#define STN8815_PIN_V22         _GPIO(104)
#define STN8815_PIN_V21         _GPIO(105)
#define STN8815_PIN_K22         _GPIO(106)
#define STN8815_PIN_K21         _GPIO(107)
#define STN8815_PIN_H20         _GPIO(108)
#define STN8815_PIN_G20         _GPIO(109)
#define STN8815_PIN_L21         _GPIO(110)
#define STN8815_PIN_H21         _GPIO(111)
#define STN8815_PIN_J21         _GPIO(112)
#define STN8815_PIN_H22         _GPIO(113)
#define STN8815_PIN_K20         _GPIO(114)
#define STN8815_PIN_L22         _GPIO(115)
#define STN8815_PIN_G21         _GPIO(116)
#define STN8815_PIN_J20         _GPIO(117)
#define STN8815_PIN_G22         _GPIO(118)
#define STN8815_PIN_U19         _GPIO(119)
#define STN8815_PIN_G19         _GPIO(120)
#define STN8815_PIN_M22         _GPIO(121)
#define STN8815_PIN_M19         _GPIO(122)
#define STN8815_PIN_J22         _GPIO(123)
/* GPIOs 124-127 not routed to pins */

/*
 * The names of the pins are denoted by GPIO number and ball name, even
 * though they can be used for other things than GPIO, this is the first
 * column in the table of the data sheet and often used on schematics and
 * such.
 */
static const struct pinctrl_pin_desc nmk_stn8815_pins[] = {
        PINCTRL_PIN(STN8815_PIN_B4, "GPIO0_B4"),
        PINCTRL_PIN(STN8815_PIN_D5, "GPIO1_D5"),
        PINCTRL_PIN(STN8815_PIN_C5, "GPIO2_C5"),
        PINCTRL_PIN(STN8815_PIN_A4, "GPIO3_A4"),
        PINCTRL_PIN(STN8815_PIN_B5, "GPIO4_B5"),
        PINCTRL_PIN(STN8815_PIN_D6, "GPIO5_D6"),
        PINCTRL_PIN(STN8815_PIN_C6, "GPIO6_C6"),
        PINCTRL_PIN(STN8815_PIN_B6, "GPIO7_B6"),
        PINCTRL_PIN(STN8815_PIN_B10, "GPIO8_B10"),
        PINCTRL_PIN(STN8815_PIN_A10, "GPIO9_A10"),
        PINCTRL_PIN(STN8815_PIN_C11, "GPIO10_C11"),
        PINCTRL_PIN(STN8815_PIN_B11, "GPIO11_B11"),
        PINCTRL_PIN(STN8815_PIN_A11, "GPIO12_A11"),
        PINCTRL_PIN(STN8815_PIN_C12, "GPIO13_C12"),
        PINCTRL_PIN(STN8815_PIN_B12, "GPIO14_B12"),
        PINCTRL_PIN(STN8815_PIN_A12, "GPIO15_A12"),
        PINCTRL_PIN(STN8815_PIN_C13, "GPIO16_C13"),
        PINCTRL_PIN(STN8815_PIN_B13, "GPIO17_B13"),
        PINCTRL_PIN(STN8815_PIN_A13, "GPIO18_A13"),
        PINCTRL_PIN(STN8815_PIN_D13, "GPIO19_D13"),
        PINCTRL_PIN(STN8815_PIN_C14, "GPIO20_C14"),
        PINCTRL_PIN(STN8815_PIN_B14, "GPIO21_B14"),
        PINCTRL_PIN(STN8815_PIN_A14, "GPIO22_A14"),
        PINCTRL_PIN(STN8815_PIN_D15, "GPIO23_D15"),
        PINCTRL_PIN(STN8815_PIN_C15, "GPIO24_C15"),
        PINCTRL_PIN(STN8815_PIN_B15, "GPIO25_B15"),
        PINCTRL_PIN(STN8815_PIN_A15, "GPIO26_A15"),
        PINCTRL_PIN(STN8815_PIN_C16, "GPIO27_C16"),
        PINCTRL_PIN(STN8815_PIN_B16, "GPIO28_B16"),
        PINCTRL_PIN(STN8815_PIN_A16, "GPIO29_A16"),
        PINCTRL_PIN(STN8815_PIN_D17, "GPIO30_D17"),
        PINCTRL_PIN(STN8815_PIN_C17, "GPIO31_C17"),
        PINCTRL_PIN(STN8815_PIN_AB6, "GPIO32_AB6"),
        PINCTRL_PIN(STN8815_PIN_AA6, "GPIO33_AA6"),
        PINCTRL_PIN(STN8815_PIN_Y6, "GPIO34_Y6"),
        PINCTRL_PIN(STN8815_PIN_Y5, "GPIO35_Y5"),
        PINCTRL_PIN(STN8815_PIN_AA5, "GPIO36_AA5"),
        PINCTRL_PIN(STN8815_PIN_AB5, "GPIO37_AB5"),
        PINCTRL_PIN(STN8815_PIN_AB4, "GPIO38_AB4"),
        PINCTRL_PIN(STN8815_PIN_Y4, "GPIO39_Y4"),
        PINCTRL_PIN(STN8815_PIN_R1, "GPIO40_R1"),
        PINCTRL_PIN(STN8815_PIN_R2, "GPIO41_R2"),
        PINCTRL_PIN(STN8815_PIN_R3, "GPIO42_R3"),
        PINCTRL_PIN(STN8815_PIN_P1, "GPIO43_P1"),
        PINCTRL_PIN(STN8815_PIN_P2, "GPIO44_P2"),
        PINCTRL_PIN(STN8815_PIN_P3, "GPIO45_P3"),
        PINCTRL_PIN(STN8815_PIN_N1, "GPIO46_N1"),
        PINCTRL_PIN(STN8815_PIN_N2, "GPIO47_N2"),
        PINCTRL_PIN(STN8815_PIN_N3, "GPIO48_N3"),
        PINCTRL_PIN(STN8815_PIN_M1, "GPIO49_M1"),
        PINCTRL_PIN(STN8815_PIN_M3, "GPIO50_M3"),
        PINCTRL_PIN(STN8815_PIN_M2, "GPIO51_M2"),
        PINCTRL_PIN(STN8815_PIN_L1, "GPIO52_L1"),
        PINCTRL_PIN(STN8815_PIN_L4, "GPIO53_L4"),
        PINCTRL_PIN(STN8815_PIN_L3, "GPIO54_L3"),
        PINCTRL_PIN(STN8815_PIN_L2, "GPIO55_L2"),
        PINCTRL_PIN(STN8815_PIN_F3, "GPIO56_F3"),
        PINCTRL_PIN(STN8815_PIN_F2, "GPIO57_F2"),
        PINCTRL_PIN(STN8815_PIN_E1, "GPIO58_E1"),
        PINCTRL_PIN(STN8815_PIN_E3, "GPIO59_E3"),
        PINCTRL_PIN(STN8815_PIN_E2, "GPIO60_E2"),
        PINCTRL_PIN(STN8815_PIN_E4, "GPIO61_E4"),
        PINCTRL_PIN(STN8815_PIN_D3, "GPIO62_D3"),
        PINCTRL_PIN(STN8815_PIN_D2, "GPIO63_D2"),
        PINCTRL_PIN(STN8815_PIN_F21, "GPIO64_F21"),
        PINCTRL_PIN(STN8815_PIN_F20, "GPIO65_F20"),
        PINCTRL_PIN(STN8815_PIN_E22, "GPIO66_E22"),
        PINCTRL_PIN(STN8815_PIN_D22, "GPIO67_D22"),
        PINCTRL_PIN(STN8815_PIN_E21, "GPIO68_E21"),
        PINCTRL_PIN(STN8815_PIN_E20, "GPIO69_E20"),
        PINCTRL_PIN(STN8815_PIN_C22, "GPIO70_C22"),
        PINCTRL_PIN(STN8815_PIN_D21, "GPIO71_D21"),
        PINCTRL_PIN(STN8815_PIN_D20, "GPIO72_D20"),
        PINCTRL_PIN(STN8815_PIN_C21, "GPIO73_C21"),
        PINCTRL_PIN(STN8815_PIN_C20, "GPIO74_C20"),
        PINCTRL_PIN(STN8815_PIN_C19, "GPIO75_C19"),
        PINCTRL_PIN(STN8815_PIN_B20, "GPIO76_B20"),
        PINCTRL_PIN(STN8815_PIN_B8, "GPIO77_B8"),
        PINCTRL_PIN(STN8815_PIN_A8, "GPIO78_A8"),
        PINCTRL_PIN(STN8815_PIN_C9, "GPIO79_C9"),
        PINCTRL_PIN(STN8815_PIN_B9, "GPIO80_B9"),
        PINCTRL_PIN(STN8815_PIN_A9, "GPIO81_A9"),
        PINCTRL_PIN(STN8815_PIN_C10, "GPIO82_C10"),
        PINCTRL_PIN(STN8815_PIN_K1, "GPIO83_K1"),
        PINCTRL_PIN(STN8815_PIN_K3, "GPIO84_K3"),
        PINCTRL_PIN(STN8815_PIN_K2, "GPIO85_K2"),
        PINCTRL_PIN(STN8815_PIN_J1, "GPIO86_J1"),
        PINCTRL_PIN(STN8815_PIN_J3, "GPIO87_J3"),
        PINCTRL_PIN(STN8815_PIN_J2, "GPIO88_J2"),
        PINCTRL_PIN(STN8815_PIN_H1, "GPIO89_H1"),
        PINCTRL_PIN(STN8815_PIN_H3, "GPIO90_H3"),
        PINCTRL_PIN(STN8815_PIN_H2, "GPIO91_H2"),
        PINCTRL_PIN(STN8815_PIN_G1, "GPIO92_G1"),
        PINCTRL_PIN(STN8815_PIN_G3, "GPIO93_G3"),
        PINCTRL_PIN(STN8815_PIN_G2, "GPIO94_G2"),
        PINCTRL_PIN(STN8815_PIN_F1, "GPIO95_F1"),
        PINCTRL_PIN(STN8815_PIN_T20, "GPIO96_T20"),
        PINCTRL_PIN(STN8815_PIN_R21, "GPIO97_R21"),
        PINCTRL_PIN(STN8815_PIN_R20, "GPIO98_R20"),
        PINCTRL_PIN(STN8815_PIN_U22, "GPIO99_U22"),
        PINCTRL_PIN(STN8815_PIN_N21, "GPIO100_N21"),
        PINCTRL_PIN(STN8815_PIN_N20, "GPIO101_N20"),
        PINCTRL_PIN(STN8815_PIN_P22, "GPIO102_P22"),
        PINCTRL_PIN(STN8815_PIN_N22, "GPIO103_N22"),
        PINCTRL_PIN(STN8815_PIN_V22, "GPIO104_V22"),
        PINCTRL_PIN(STN8815_PIN_V21, "GPIO105_V21"),
        PINCTRL_PIN(STN8815_PIN_K22, "GPIO106_K22"),
        PINCTRL_PIN(STN8815_PIN_K21, "GPIO107_K21"),
        PINCTRL_PIN(STN8815_PIN_H20, "GPIO108_H20"),
        PINCTRL_PIN(STN8815_PIN_G20, "GPIO109_G20"),
        PINCTRL_PIN(STN8815_PIN_L21, "GPIO110_L21"),
        PINCTRL_PIN(STN8815_PIN_H21, "GPIO111_H21"),
        PINCTRL_PIN(STN8815_PIN_J21, "GPIO112_J21"),
        PINCTRL_PIN(STN8815_PIN_H22, "GPIO113_H22"),
        PINCTRL_PIN(STN8815_PIN_K20, "GPIO114_K20"),
        PINCTRL_PIN(STN8815_PIN_L22, "GPIO115_L22"),
        PINCTRL_PIN(STN8815_PIN_G21, "GPIO116_G21"),
        PINCTRL_PIN(STN8815_PIN_J20, "GPIO117_J20"),
        PINCTRL_PIN(STN8815_PIN_G22, "GPIO118_G22"),
        PINCTRL_PIN(STN8815_PIN_U19, "GPIO119_U19"),
        PINCTRL_PIN(STN8815_PIN_G19, "GPIO120_G19"),
        PINCTRL_PIN(STN8815_PIN_M22, "GPIO121_M22"),
        PINCTRL_PIN(STN8815_PIN_M19, "GPIO122_M19"),
        PINCTRL_PIN(STN8815_PIN_J22, "GPIO123_J22"),
};

/*
 * Read the pin group names like this:
 * u0_a_1    = first groups of pins for uart0 on alt function a
 * i2c2_b_2  = second group of pins for i2c2 on alt function b
 */

/* Altfunction A */
static const unsigned u0txrx_a_1_pins[] = { STN8815_PIN_B4, STN8815_PIN_D5 };
static const unsigned u0ctsrts_a_1_pins[] = { STN8815_PIN_C5, STN8815_PIN_B6 };
/* Modem pins: DCD, DSR, RI, DTR */
static const unsigned u0modem_a_1_pins[] = { STN8815_PIN_A4, STN8815_PIN_B5,
        STN8815_PIN_D6, STN8815_PIN_C6 };
static const unsigned mmcsd_a_1_pins[] = { STN8815_PIN_B10, STN8815_PIN_A10,
        STN8815_PIN_C11, STN8815_PIN_B11, STN8815_PIN_A11, STN8815_PIN_C12,
        STN8815_PIN_B12, STN8815_PIN_A12, STN8815_PIN_C13, STN8815_PIN_C15 };
static const unsigned mmcsd_b_1_pins[] = { STN8815_PIN_D15 };
static const unsigned u1_a_1_pins[] = { STN8815_PIN_M2, STN8815_PIN_L1,
                                        STN8815_PIN_F3, STN8815_PIN_F2 };
static const unsigned i2c1_a_1_pins[] = { STN8815_PIN_L4, STN8815_PIN_L3 };
static const unsigned i2c0_a_1_pins[] = { STN8815_PIN_D3, STN8815_PIN_D2 };
/* Altfunction B */
static const unsigned u1_b_1_pins[] = { STN8815_PIN_B16, STN8815_PIN_A16 };
static const unsigned i2cusb_b_1_pins[] = { STN8815_PIN_C21, STN8815_PIN_C20 };
static const unsigned clcd_16_23_b_1_pins[] = { STN8815_PIN_AB6,
        STN8815_PIN_AA6, STN8815_PIN_Y6, STN8815_PIN_Y5, STN8815_PIN_AA5,
        STN8815_PIN_AB5, STN8815_PIN_AB4, STN8815_PIN_Y4 };
/* Full-speed and high-speed USB pins */
static const unsigned usbfs_b_1_pins[] = { STN8815_PIN_E21, STN8815_PIN_E20,
                                           STN8815_PIN_C22, STN8815_PIN_D21,
                                           STN8815_PIN_D20, STN8815_PIN_C21,
                                           STN8815_PIN_C20 };
static const unsigned usbhs_c_1_pins[] = { STN8815_PIN_E21, STN8815_PIN_E20,
                                           STN8815_PIN_C20, STN8815_PIN_C19,
                                           STN8815_PIN_C22, STN8815_PIN_D21,
                                           STN8815_PIN_D20, STN8815_PIN_C21,
                                           STN8815_PIN_C16, STN8815_PIN_A15,
                                           STN8815_PIN_D17, STN8815_PIN_C17 };

static const struct nmk_pingroup nmk_stn8815_groups[] = {
        NMK_PIN_GROUP(u0txrx_a_1, NMK_GPIO_ALT_A),
        NMK_PIN_GROUP(u0ctsrts_a_1, NMK_GPIO_ALT_A),
        NMK_PIN_GROUP(u0modem_a_1, NMK_GPIO_ALT_A),
        NMK_PIN_GROUP(mmcsd_a_1, NMK_GPIO_ALT_A),
        NMK_PIN_GROUP(mmcsd_b_1, NMK_GPIO_ALT_B),
        NMK_PIN_GROUP(u1_a_1, NMK_GPIO_ALT_A),
        NMK_PIN_GROUP(i2c1_a_1, NMK_GPIO_ALT_A),
        NMK_PIN_GROUP(i2c0_a_1, NMK_GPIO_ALT_A),
        NMK_PIN_GROUP(u1_b_1, NMK_GPIO_ALT_B),
        NMK_PIN_GROUP(i2cusb_b_1, NMK_GPIO_ALT_B),
        NMK_PIN_GROUP(clcd_16_23_b_1, NMK_GPIO_ALT_B),
        NMK_PIN_GROUP(usbfs_b_1, NMK_GPIO_ALT_B),
        NMK_PIN_GROUP(usbhs_c_1, NMK_GPIO_ALT_C),
};

/* We use this macro to define the groups applicable to a function */
#define STN8815_FUNC_GROUPS(a, b...)       \
static const char * const a##_groups[] = { b };

STN8815_FUNC_GROUPS(u0, "u0txrx_a_1", "u0ctsrts_a_1", "u0modem_a_1");
STN8815_FUNC_GROUPS(mmcsd, "mmcsd_a_1", "mmcsd_b_1");
STN8815_FUNC_GROUPS(u1, "u1_a_1", "u1_b_1");
STN8815_FUNC_GROUPS(i2c1, "i2c1_a_1");
STN8815_FUNC_GROUPS(i2c0, "i2c0_a_1");
STN8815_FUNC_GROUPS(i2cusb, "i2cusb_b_1");
STN8815_FUNC_GROUPS(clcd, "clcd_16_23_b_1");
STN8815_FUNC_GROUPS(usb, "usbfs_b_1", "usbhs_c_1");

#define FUNCTION(fname)                                 \
        {                                               \
                .name = #fname,                         \
                .groups = fname##_groups,               \
                .ngroups = ARRAY_SIZE(fname##_groups),  \
        }

static const struct nmk_function nmk_stn8815_functions[] = {
        FUNCTION(u0),
        FUNCTION(mmcsd),
        FUNCTION(u1),
        FUNCTION(i2c1),
        FUNCTION(i2c0),
        FUNCTION(i2cusb),
        FUNCTION(clcd),
        FUNCTION(usb),
};

static const struct nmk_pinctrl_soc_data nmk_stn8815_soc = {
        .pins = nmk_stn8815_pins,
        .npins = ARRAY_SIZE(nmk_stn8815_pins),
        .functions = nmk_stn8815_functions,
        .nfunctions = ARRAY_SIZE(nmk_stn8815_functions),
        .groups = nmk_stn8815_groups,
        .ngroups = ARRAY_SIZE(nmk_stn8815_groups),
};

void nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc)
{
        *soc = &nmk_stn8815_soc;
}