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Release 4.17 drivers/pinctrl/pinctrl-oxnas.c

Directory: drivers/pinctrl
/*
 * Oxford Semiconductor OXNAS SoC Family pinctrl driver
 *
 * Copyright (C) 2016 Neil Armstrong <narmstrong@baylibre.com>
 *
 * Based on pinctrl-pic32.c
 * Joshua Henderson, <joshua.henderson@microchip.com>
 * Copyright (C) 2015 Microchip Technology Inc.  All rights reserved.
 *
 * This program is free software; you can distribute it and/or modify it
 * under the terms of the GNU General Public License (Version 2) as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * for more details.
 */
#include <linux/gpio/driver.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/pinctrl/pinconf.h>
#include <linux/pinctrl/pinconf-generic.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/regmap.h>
#include <linux/mfd/syscon.h>

#include "pinctrl-utils.h"


#define PINS_PER_BANK		32


#define GPIO_BANK_START(bank)		((bank) * PINS_PER_BANK)

/* OX810 Regmap Offsets */

#define PINMUX_810_PRIMARY_SEL0		0x0c

#define PINMUX_810_SECONDARY_SEL0	0x14

#define PINMUX_810_TERTIARY_SEL0	0x8c

#define PINMUX_810_PRIMARY_SEL1		0x10

#define PINMUX_810_SECONDARY_SEL1	0x18

#define PINMUX_810_TERTIARY_SEL1	0x90

#define PINMUX_810_PULLUP_CTRL0		0xac

#define PINMUX_810_PULLUP_CTRL1		0xb0

/* OX820 Regmap Offsets */

#define PINMUX_820_BANK_OFFSET		0x100000

#define PINMUX_820_SECONDARY_SEL	0x14

#define PINMUX_820_TERTIARY_SEL		0x8c

#define PINMUX_820_QUATERNARY_SEL	0x94

#define PINMUX_820_DEBUG_SEL		0x9c

#define PINMUX_820_ALTERNATIVE_SEL	0xa4

#define PINMUX_820_PULLUP_CTRL		0xac

/* GPIO Registers */

#define INPUT_VALUE	0x00

#define OUTPUT_EN	0x04

#define IRQ_PENDING	0x0c

#define OUTPUT_SET	0x14

#define OUTPUT_CLEAR	0x18

#define OUTPUT_EN_SET	0x1c

#define OUTPUT_EN_CLEAR	0x20

#define RE_IRQ_ENABLE	0x28

#define FE_IRQ_ENABLE	0x2c


struct oxnas_function {
	
const char *name;
	
const char * const *groups;
	
unsigned int ngroups;
};


struct oxnas_pin_group {
	
const char *name;
	
unsigned int pin;
	
unsigned int bank;
	
struct oxnas_desc_function *functions;
};


struct oxnas_desc_function {
	
const char *name;
	
unsigned int fct;
};


struct oxnas_gpio_bank {
	
void __iomem *reg_base;
	
struct gpio_chip gpio_chip;
	
struct irq_chip irq_chip;
	
unsigned int id;
};


struct oxnas_pinctrl {
	
struct regmap *regmap;
	
struct device *dev;
	
struct pinctrl_dev *pctldev;
	
const struct oxnas_function *functions;
	
unsigned int nfunctions;
	
const struct oxnas_pin_group *groups;
	
unsigned int ngroups;
	
struct oxnas_gpio_bank *gpio_banks;
	
unsigned int nbanks;
};


struct oxnas_pinctrl_data {
	
struct pinctrl_desc *desc;
	
struct oxnas_pinctrl *pctl;
};


static const struct pinctrl_pin_desc oxnas_ox810se_pins[] = {
	PINCTRL_PIN(0, "gpio0"),
	PINCTRL_PIN(1, "gpio1"),
	PINCTRL_PIN(2, "gpio2"),
	PINCTRL_PIN(3, "gpio3"),
	PINCTRL_PIN(4, "gpio4"),
	PINCTRL_PIN(5, "gpio5"),
	PINCTRL_PIN(6, "gpio6"),
	PINCTRL_PIN(7, "gpio7"),
	PINCTRL_PIN(8, "gpio8"),
	PINCTRL_PIN(9, "gpio9"),
	PINCTRL_PIN(10, "gpio10"),
	PINCTRL_PIN(11, "gpio11"),
	PINCTRL_PIN(12, "gpio12"),
	PINCTRL_PIN(13, "gpio13"),
	PINCTRL_PIN(14, "gpio14"),
	PINCTRL_PIN(15, "gpio15"),
	PINCTRL_PIN(16, "gpio16"),
	PINCTRL_PIN(17, "gpio17"),
	PINCTRL_PIN(18, "gpio18"),
	PINCTRL_PIN(19, "gpio19"),
	PINCTRL_PIN(20, "gpio20"),
	PINCTRL_PIN(21, "gpio21"),
	PINCTRL_PIN(22, "gpio22"),
	PINCTRL_PIN(23, "gpio23"),
	PINCTRL_PIN(24, "gpio24"),
	PINCTRL_PIN(25, "gpio25"),
	PINCTRL_PIN(26, "gpio26"),
	PINCTRL_PIN(27, "gpio27"),
	PINCTRL_PIN(28, "gpio28"),
	PINCTRL_PIN(29, "gpio29"),
	PINCTRL_PIN(30, "gpio30"),
	PINCTRL_PIN(31, "gpio31"),
	PINCTRL_PIN(32, "gpio32"),
	PINCTRL_PIN(33, "gpio33"),
	PINCTRL_PIN(34, "gpio34"),
};


static const struct pinctrl_pin_desc oxnas_ox820_pins[] = {
	PINCTRL_PIN(0, "gpio0"),
	PINCTRL_PIN(1, "gpio1"),
	PINCTRL_PIN(2, "gpio2"),
	PINCTRL_PIN(3, "gpio3"),
	PINCTRL_PIN(4, "gpio4"),
	PINCTRL_PIN(5, "gpio5"),
	PINCTRL_PIN(6, "gpio6"),
	PINCTRL_PIN(7, "gpio7"),
	PINCTRL_PIN(8, "gpio8"),
	PINCTRL_PIN(9, "gpio9"),
	PINCTRL_PIN(10, "gpio10"),
	PINCTRL_PIN(11, "gpio11"),
	PINCTRL_PIN(12, "gpio12"),
	PINCTRL_PIN(13, "gpio13"),
	PINCTRL_PIN(14, "gpio14"),
	PINCTRL_PIN(15, "gpio15"),
	PINCTRL_PIN(16, "gpio16"),
	PINCTRL_PIN(17, "gpio17"),
	PINCTRL_PIN(18, "gpio18"),
	PINCTRL_PIN(19, "gpio19"),
	PINCTRL_PIN(20, "gpio20"),
	PINCTRL_PIN(21, "gpio21"),
	PINCTRL_PIN(22, "gpio22"),
	PINCTRL_PIN(23, "gpio23"),
	PINCTRL_PIN(24, "gpio24"),
	PINCTRL_PIN(25, "gpio25"),
	PINCTRL_PIN(26, "gpio26"),
	PINCTRL_PIN(27, "gpio27"),
	PINCTRL_PIN(28, "gpio28"),
	PINCTRL_PIN(29, "gpio29"),
	PINCTRL_PIN(30, "gpio30"),
	PINCTRL_PIN(31, "gpio31"),
	PINCTRL_PIN(32, "gpio32"),
	PINCTRL_PIN(33, "gpio33"),
	PINCTRL_PIN(34, "gpio34"),
	PINCTRL_PIN(35, "gpio35"),
	PINCTRL_PIN(36, "gpio36"),
	PINCTRL_PIN(37, "gpio37"),
	PINCTRL_PIN(38, "gpio38"),
	PINCTRL_PIN(39, "gpio39"),
	PINCTRL_PIN(40, "gpio40"),
	PINCTRL_PIN(41, "gpio41"),
	PINCTRL_PIN(42, "gpio42"),
	PINCTRL_PIN(43, "gpio43"),
	PINCTRL_PIN(44, "gpio44"),
	PINCTRL_PIN(45, "gpio45"),
	PINCTRL_PIN(46, "gpio46"),
	PINCTRL_PIN(47, "gpio47"),
	PINCTRL_PIN(48, "gpio48"),
	PINCTRL_PIN(49, "gpio49"),
};


static const char * const oxnas_ox810se_fct0_group[] = {
	"gpio0",  "gpio1",  "gpio2",  "gpio3",
	"gpio4",  "gpio5",  "gpio6",  "gpio7",
	"gpio8",  "gpio9",  "gpio10", "gpio11",
	"gpio12", "gpio13", "gpio14", "gpio15",
	"gpio16", "gpio17", "gpio18", "gpio19",
	"gpio20", "gpio21", "gpio22", "gpio23",
	"gpio24", "gpio25", "gpio26", "gpio27",
	"gpio28", "gpio29", "gpio30", "gpio31",
	"gpio32", "gpio33", "gpio34"
};


static const char * const oxnas_ox810se_fct3_group[] = {
	"gpio0",  "gpio1",  "gpio2",  "gpio3",
	"gpio4",  "gpio5",  "gpio6",  "gpio7",
	"gpio8",  "gpio9",
	"gpio20",
	"gpio22", "gpio23", "gpio24", "gpio25",
	"gpio26", "gpio27", "gpio28", "gpio29",
	"gpio30", "gpio31", "gpio32", "gpio33",
	"gpio34"
};


static const char * const oxnas_ox820_fct0_group[] = {
	"gpio0",  "gpio1",  "gpio2",  "gpio3",
	"gpio4",  "gpio5",  "gpio6",  "gpio7",
	"gpio8",  "gpio9",  "gpio10", "gpio11",
	"gpio12", "gpio13", "gpio14", "gpio15",
	"gpio16", "gpio17", "gpio18", "gpio19",
	"gpio20", "gpio21", "gpio22", "gpio23",
	"gpio24", "gpio25", "gpio26", "gpio27",
	"gpio28", "gpio29", "gpio30", "gpio31",
	"gpio32", "gpio33", "gpio34", "gpio35",
	"gpio36", "gpio37", "gpio38", "gpio39",
	"gpio40", "gpio41", "gpio42", "gpio43",
	"gpio44", "gpio45", "gpio46", "gpio47",
	"gpio48", "gpio49"
};


static const char * const oxnas_ox820_fct1_group[] = {
	"gpio3", "gpio4",
	"gpio12", "gpio13", "gpio14", "gpio15",
	"gpio16", "gpio17", "gpio18", "gpio19",
	"gpio20", "gpio21", "gpio22", "gpio23",
	"gpio24"
};


static const char * const oxnas_ox820_fct4_group[] = {
	"gpio5", "gpio6", "gpio7", "gpio8",
	"gpio24", "gpio25", "gpio26", "gpio27",
	"gpio40", "gpio41", "gpio42", "gpio43"
};


static const char * const oxnas_ox820_fct5_group[] = {
	"gpio28", "gpio29", "gpio30", "gpio31"
};


#define FUNCTION(_name, _gr)					\
	{                                                       \
                .name = #_name,                                 \
                .groups = oxnas_##_gr##_group,                  \
                .ngroups = ARRAY_SIZE(oxnas_##_gr##_group),     \
        }


static const struct oxnas_function oxnas_ox810se_functions[] = {
	FUNCTION(gpio, ox810se_fct0),
	FUNCTION(fct3, ox810se_fct3),
};


static const struct oxnas_function oxnas_ox820_functions[] = {
	FUNCTION(gpio, ox820_fct0),
	FUNCTION(fct1, ox820_fct1),
	FUNCTION(fct4, ox820_fct4),
	FUNCTION(fct5, ox820_fct5),
};


#define OXNAS_PINCTRL_GROUP(_pin, _name, ...)				\
	{                                                               \
                .name = #_name,                                         \
                .pin = _pin,                                            \
                .bank = _pin / PINS_PER_BANK,                           \
                .functions = (struct oxnas_desc_function[]){            \
                        __VA_ARGS__, { } },                             \
        }


#define OXNAS_PINCTRL_FUNCTION(_name, _fct)		\
	{                                               \
                .name = #_name,                         \
                .fct = _fct,                            \
        }


static const struct oxnas_pin_group oxnas_ox810se_groups[] = {
	OXNAS_PINCTRL_GROUP(0, gpio0,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(1, gpio1,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(2, gpio2,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(3, gpio3,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(4, gpio4,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(5, gpio5,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(6, gpio6,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(7, gpio7,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(8, gpio8,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(9, gpio9,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(10, gpio10,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(11, gpio11,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(12, gpio12,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(13, gpio13,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(14, gpio14,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(15, gpio15,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(16, gpio16,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(17, gpio17,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(18, gpio18,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(19, gpio19,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(20, gpio20,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(21, gpio21,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(22, gpio22,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(23, gpio23,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(24, gpio24,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(25, gpio25,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(26, gpio26,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(27, gpio27,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(28, gpio28,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(29, gpio29,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(30, gpio30,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(31, gpio31,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(32, gpio32,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(33, gpio33,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
	OXNAS_PINCTRL_GROUP(34, gpio34,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct3, 3)),
};


static const struct oxnas_pin_group oxnas_ox820_groups[] = {
	OXNAS_PINCTRL_GROUP(0, gpio0,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(1, gpio1,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(2, gpio2,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(3, gpio3,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(4, gpio4,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(5, gpio5,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct4, 4)),
	OXNAS_PINCTRL_GROUP(6, gpio6,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct4, 4)),
	OXNAS_PINCTRL_GROUP(7, gpio7,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct4, 4)),
	OXNAS_PINCTRL_GROUP(8, gpio8,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct4, 4)),
	OXNAS_PINCTRL_GROUP(9, gpio9,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(10, gpio10,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(11, gpio11,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(12, gpio12,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(13, gpio13,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(14, gpio14,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(15, gpio15,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(16, gpio16,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(17, gpio17,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(18, gpio18,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(19, gpio19,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(20, gpio20,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(21, gpio21,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(22, gpio22,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(23, gpio23,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1)),
	OXNAS_PINCTRL_GROUP(24, gpio24,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct1, 1),
			OXNAS_PINCTRL_FUNCTION(fct4, 5)),
	OXNAS_PINCTRL_GROUP(25, gpio25,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct4, 4)),
	OXNAS_PINCTRL_GROUP(26, gpio26,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct4, 4)),
	OXNAS_PINCTRL_GROUP(27, gpio27,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct4, 4)),
	OXNAS_PINCTRL_GROUP(28, gpio28,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct5, 5)),
	OXNAS_PINCTRL_GROUP(29, gpio29,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct5, 5)),
	OXNAS_PINCTRL_GROUP(30, gpio30,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct5, 5)),
	OXNAS_PINCTRL_GROUP(31, gpio31,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct5, 5)),
	OXNAS_PINCTRL_GROUP(32, gpio32,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(33, gpio33,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(34, gpio34,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(35, gpio35,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(36, gpio36,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(37, gpio37,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(38, gpio38,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(39, gpio39,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(40, gpio40,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct4, 4)),
	OXNAS_PINCTRL_GROUP(41, gpio41,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct4, 4)),
	OXNAS_PINCTRL_GROUP(42, gpio42,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct4, 4)),
	OXNAS_PINCTRL_GROUP(43, gpio43,
			OXNAS_PINCTRL_FUNCTION(gpio, 0),
			OXNAS_PINCTRL_FUNCTION(fct4, 4)),
	OXNAS_PINCTRL_GROUP(44, gpio44,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(45, gpio45,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(46, gpio46,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(47, gpio47,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(48, gpio48,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
	OXNAS_PINCTRL_GROUP(49, gpio49,
			OXNAS_PINCTRL_FUNCTION(gpio, 0)),
};


static inline struct oxnas_gpio_bank *pctl_to_bank(struct oxnas_pinctrl *pctl, unsigned int pin) { return &pctl->gpio_banks[pin / PINS_PER_BANK]; }

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static int oxnas_pinctrl_get_groups_count(struct pinctrl_dev *pctldev) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); return pctl->ngroups; }

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static const char *oxnas_pinctrl_get_group_name(struct pinctrl_dev *pctldev, unsigned int group) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); return pctl->groups[group].name; }

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static int oxnas_pinctrl_get_group_pins(struct pinctrl_dev *pctldev, unsigned int group, const unsigned int **pins, unsigned int *num_pins) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); *pins = &pctl->groups[group].pin; *num_pins = 1; return 0; }

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static const struct pinctrl_ops oxnas_pinctrl_ops = { .get_groups_count = oxnas_pinctrl_get_groups_count, .get_group_name = oxnas_pinctrl_get_group_name, .get_group_pins = oxnas_pinctrl_get_group_pins, .dt_node_to_map = pinconf_generic_dt_node_to_map_pin, .dt_free_map = pinctrl_utils_free_map, };
static int oxnas_pinmux_get_functions_count(struct pinctrl_dev *pctldev) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); return pctl->nfunctions; }

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static const char * oxnas_pinmux_get_function_name(struct pinctrl_dev *pctldev, unsigned int func) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); return pctl->functions[func].name; }

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static int oxnas_pinmux_get_function_groups(struct pinctrl_dev *pctldev, unsigned int func, const char * const **groups, unsigned int * const num_groups) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); *groups = pctl->functions[func].groups; *num_groups = pctl->functions[func].ngroups; return 0; }

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static int oxnas_ox810se_pinmux_enable(struct pinctrl_dev *pctldev, unsigned int func, unsigned int group) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); const struct oxnas_pin_group *pg = &pctl->groups[group]; const struct oxnas_function *pf = &pctl->functions[func]; const char *fname = pf->name; struct oxnas_desc_function *functions = pg->functions; u32 mask = BIT(pg->pin); while (functions->name) { if (!strcmp(functions->name, fname)) { dev_dbg(pctl->dev, "setting function %s bank %d pin %d fct %d mask %x\n", fname, pg->bank, pg->pin, functions->fct, mask); regmap_write_bits(pctl->regmap, (pg->bank ? PINMUX_810_PRIMARY_SEL1 : PINMUX_810_PRIMARY_SEL0), mask, (functions->fct == 1 ? mask : 0)); regmap_write_bits(pctl->regmap, (pg->bank ? PINMUX_810_SECONDARY_SEL1 : PINMUX_810_SECONDARY_SEL0), mask, (functions->fct == 2 ? mask : 0)); regmap_write_bits(pctl->regmap, (pg->bank ? PINMUX_810_TERTIARY_SEL1 : PINMUX_810_TERTIARY_SEL0), mask, (functions->fct == 3 ? mask : 0)); return 0; } functions++; } dev_err(pctl->dev, "cannot mux pin %u to function %u\n", group, func); return -EINVAL; }

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static int oxnas_ox820_pinmux_enable(struct pinctrl_dev *pctldev, unsigned int func, unsigned int group) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); const struct oxnas_pin_group *pg = &pctl->groups[group]; const struct oxnas_function *pf = &pctl->functions[func]; const char *fname = pf->name; struct oxnas_desc_function *functions = pg->functions; unsigned int offset = (pg->bank ? PINMUX_820_BANK_OFFSET : 0); u32 mask = BIT(pg->pin); while (functions->name) { if (!strcmp(functions->name, fname)) { dev_dbg(pctl->dev, "setting function %s bank %d pin %d fct %d mask %x\n", fname, pg->bank, pg->pin, functions->fct, mask); regmap_write_bits(pctl->regmap, offset + PINMUX_820_SECONDARY_SEL, mask, (functions->fct == 1 ? mask : 0)); regmap_write_bits(pctl->regmap, offset + PINMUX_820_TERTIARY_SEL, mask, (functions->fct == 2 ? mask : 0)); regmap_write_bits(pctl->regmap, offset + PINMUX_820_QUATERNARY_SEL, mask, (functions->fct == 3 ? mask : 0)); regmap_write_bits(pctl->regmap, offset + PINMUX_820_DEBUG_SEL, mask, (functions->fct == 4 ? mask : 0)); regmap_write_bits(pctl->regmap, offset + PINMUX_820_ALTERNATIVE_SEL, mask, (functions->fct == 5 ? mask : 0)); return 0; } functions++; } dev_err(pctl->dev, "cannot mux pin %u to function %u\n", group, func); return -EINVAL; }

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static int oxnas_ox810se_gpio_request_enable(struct pinctrl_dev *pctldev, struct pinctrl_gpio_range *range, unsigned int offset) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); struct oxnas_gpio_bank *bank = gpiochip_get_data(range->gc); u32 mask = BIT(offset - bank->gpio_chip.base); dev_dbg(pctl->dev, "requesting gpio %d in bank %d (id %d) with mask 0x%x\n", offset, bank->gpio_chip.base, bank->id, mask); regmap_write_bits(pctl->regmap, (bank->id ? PINMUX_810_PRIMARY_SEL1 : PINMUX_810_PRIMARY_SEL0), mask, 0); regmap_write_bits(pctl->regmap, (bank->id ? PINMUX_810_SECONDARY_SEL1 : PINMUX_810_SECONDARY_SEL0), mask, 0); regmap_write_bits(pctl->regmap, (bank->id ? PINMUX_810_TERTIARY_SEL1 : PINMUX_810_TERTIARY_SEL0), mask, 0); return 0; }

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static int oxnas_ox820_gpio_request_enable(struct pinctrl_dev *pctldev, struct pinctrl_gpio_range *range, unsigned int offset) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); struct oxnas_gpio_bank *bank = gpiochip_get_data(range->gc); unsigned int bank_offset = (bank->id ? PINMUX_820_BANK_OFFSET : 0); u32 mask = BIT(offset - bank->gpio_chip.base); dev_dbg(pctl->dev, "requesting gpio %d in bank %d (id %d) with mask 0x%x\n", offset, bank->gpio_chip.base, bank->id, mask); regmap_write_bits(pctl->regmap, bank_offset + PINMUX_820_SECONDARY_SEL, mask, 0); regmap_write_bits(pctl->regmap, bank_offset + PINMUX_820_TERTIARY_SEL, mask, 0); regmap_write_bits(pctl->regmap, bank_offset + PINMUX_820_QUATERNARY_SEL, mask, 0); regmap_write_bits(pctl->regmap, bank_offset + PINMUX_820_DEBUG_SEL, mask, 0); regmap_write_bits(pctl->regmap, bank_offset + PINMUX_820_ALTERNATIVE_SEL, mask, 0); return 0; }

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static int oxnas_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) { struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); u32 mask = BIT(offset); return !(readl_relaxed(bank->reg_base + OUTPUT_EN) & mask); }

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static int oxnas_gpio_direction_input(struct gpio_chip *chip, unsigned int offset) { struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); u32 mask = BIT(offset); writel_relaxed(mask, bank->reg_base + OUTPUT_EN_CLEAR); return 0; }

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static int oxnas_gpio_get(struct gpio_chip *chip, unsigned int offset) { struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); u32 mask = BIT(offset); return (readl_relaxed(bank->reg_base + INPUT_VALUE) & mask) != 0; }

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static void oxnas_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) { struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); u32 mask = BIT(offset); if (value) writel_relaxed(mask, bank->reg_base + OUTPUT_SET); else writel_relaxed(mask, bank->reg_base + OUTPUT_CLEAR); }

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static int oxnas_gpio_direction_output(struct gpio_chip *chip, unsigned int offset, int value) { struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); u32 mask = BIT(offset); oxnas_gpio_set(chip, offset, value); writel_relaxed(mask, bank->reg_base + OUTPUT_EN_SET); return 0; }

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static int oxnas_gpio_set_direction(struct pinctrl_dev *pctldev, struct pinctrl_gpio_range *range, unsigned int offset, bool input) { struct gpio_chip *chip = range->gc; if (input) oxnas_gpio_direction_input(chip, offset); else oxnas_gpio_direction_output(chip, offset, 0); return 0; }

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static const struct pinmux_ops oxnas_ox810se_pinmux_ops = { .get_functions_count = oxnas_pinmux_get_functions_count, .get_function_name = oxnas_pinmux_get_function_name, .get_function_groups = oxnas_pinmux_get_function_groups, .set_mux = oxnas_ox810se_pinmux_enable, .gpio_request_enable = oxnas_ox810se_gpio_request_enable, .gpio_set_direction = oxnas_gpio_set_direction, }; static const struct pinmux_ops oxnas_ox820_pinmux_ops = { .get_functions_count = oxnas_pinmux_get_functions_count, .get_function_name = oxnas_pinmux_get_function_name, .get_function_groups = oxnas_pinmux_get_function_groups, .set_mux = oxnas_ox820_pinmux_enable, .gpio_request_enable = oxnas_ox820_gpio_request_enable, .gpio_set_direction = oxnas_gpio_set_direction, };
static int oxnas_ox810se_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin, unsigned long *config) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); struct oxnas_gpio_bank *bank = pctl_to_bank(pctl, pin); unsigned int param = pinconf_to_config_param(*config); u32 mask = BIT(pin - bank->gpio_chip.base); int ret; u32 arg; switch (param) { case PIN_CONFIG_BIAS_PULL_UP: ret = regmap_read(pctl->regmap, (bank->id ? PINMUX_810_PULLUP_CTRL1 : PINMUX_810_PULLUP_CTRL0), &arg); if (ret) return ret; arg = !!(arg & mask); break; default: return -ENOTSUPP; } *config = pinconf_to_config_packed(param, arg); return 0; }

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static int oxnas_ox820_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin, unsigned long *config) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); struct oxnas_gpio_bank *bank = pctl_to_bank(pctl, pin); unsigned int param = pinconf_to_config_param(*config); unsigned int bank_offset = (bank->id ? PINMUX_820_BANK_OFFSET : 0); u32 mask = BIT(pin - bank->gpio_chip.base); int ret; u32 arg; switch (param) { case PIN_CONFIG_BIAS_PULL_UP: ret = regmap_read(pctl->regmap, bank_offset + PINMUX_820_PULLUP_CTRL, &arg); if (ret) return ret; arg = !!(arg & mask); break; default: return -ENOTSUPP; } *config = pinconf_to_config_packed(param, arg); return 0; }

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static int oxnas_ox810se_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin, unsigned long *configs, unsigned int num_configs) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); struct oxnas_gpio_bank *bank = pctl_to_bank(pctl, pin); unsigned int param; u32 arg; unsigned int i; u32 offset = pin - bank->gpio_chip.base; u32 mask = BIT(offset); dev_dbg(pctl->dev, "setting pin %d bank %d mask 0x%x\n", pin, bank->gpio_chip.base, mask); for (i = 0; i < num_configs; i++) { param = pinconf_to_config_param(configs[i]); arg = pinconf_to_config_argument(configs[i]); switch (param) { case PIN_CONFIG_BIAS_PULL_UP: dev_dbg(pctl->dev, " pullup\n"); regmap_write_bits(pctl->regmap, (bank->id ? PINMUX_810_PULLUP_CTRL1 : PINMUX_810_PULLUP_CTRL0), mask, mask); break; default: dev_err(pctl->dev, "Property %u not supported\n", param); return -ENOTSUPP; } } return 0; }

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static int oxnas_ox820_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin, unsigned long *configs, unsigned int num_configs) { struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); struct oxnas_gpio_bank *bank = pctl_to_bank(pctl, pin); unsigned int bank_offset = (bank->id ? PINMUX_820_BANK_OFFSET : 0); unsigned int param; u32 arg; unsigned int i; u32 offset = pin - bank->gpio_chip.base; u32 mask = BIT(offset); dev_dbg(pctl->dev, "setting pin %d bank %d mask 0x%x\n", pin, bank->gpio_chip.base, mask); for (i = 0; i < num_configs; i++) { param = pinconf_to_config_param(configs[i]); arg = pinconf_to_config_argument(configs[i]); switch (param) { case PIN_CONFIG_BIAS_PULL_UP: dev_dbg(pctl->dev, " pullup\n"); regmap_write_bits(pctl->regmap, bank_offset + PINMUX_820_PULLUP_CTRL, mask, mask); break; default: dev_err(pctl->dev, "Property %u not supported\n", param); return -ENOTSUPP; } } return 0; }

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static const struct pinconf_ops oxnas_ox810se_pinconf_ops = { .pin_config_get = oxnas_ox810se_pinconf_get, .pin_config_set = oxnas_ox810se_pinconf_set, .is_generic = true, }; static const struct pinconf_ops oxnas_ox820_pinconf_ops = { .pin_config_get = oxnas_ox820_pinconf_get, .pin_config_set = oxnas_ox820_pinconf_set, .is_generic = true, };
static void oxnas_gpio_irq_ack(struct irq_data *data) { struct gpio_chip *chip = irq_data_get_irq_chip_data(data); struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); u32 mask = BIT(data->hwirq); writel(mask, bank->reg_base + IRQ_PENDING); }

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static void oxnas_gpio_irq_mask(struct irq_data *data) { struct gpio_chip *chip = irq_data_get_irq_chip_data(data); struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); unsigned int type = irqd_get_trigger_type(data); u32 mask = BIT(data->hwirq); if (type & IRQ_TYPE_EDGE_RISING) writel(readl(bank->reg_base + RE_IRQ_ENABLE) & ~mask, bank->reg_base + RE_IRQ_ENABLE); if (type & IRQ_TYPE_EDGE_FALLING) writel(readl(bank->reg_base + FE_IRQ_ENABLE) & ~mask, bank->reg_base + FE_IRQ_ENABLE); }

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static void oxnas_gpio_irq_unmask(struct irq_data *data) { struct gpio_chip *chip = irq_data_get_irq_chip_data(data); struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); unsigned int type = irqd_get_trigger_type(data); u32 mask = BIT(data->hwirq); if (type & IRQ_TYPE_EDGE_RISING) writel(readl(bank->reg_base + RE_IRQ_ENABLE) | mask, bank->reg_base + RE_IRQ_ENABLE); if (type & IRQ_TYPE_EDGE_FALLING) writel(readl(bank->reg_base + FE_IRQ_ENABLE) | mask, bank->reg_base + FE_IRQ_ENABLE); }

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static unsigned int oxnas_gpio_irq_startup(struct irq_data *data) { struct gpio_chip *chip = irq_data_get_irq_chip_data(data); oxnas_gpio_direction_input(chip, data->hwirq); oxnas_gpio_irq_unmask(data); return 0; }

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static int oxnas_gpio_irq_set_type(struct irq_data *data, unsigned int type) { if ((type & (IRQ_TYPE_EDGE_RISING|IRQ_TYPE_EDGE_FALLING)) == 0) return -EINVAL; irq_set_handler_locked(data, handle_edge_irq); return 0; }

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static void oxnas_gpio_irq_handler(struct irq_desc *desc) { struct gpio_chip *gc = irq_desc_get_handler_data(desc); struct oxnas_gpio_bank *bank = gpiochip_get_data(gc); struct irq_chip *chip = irq_desc_get_chip(desc); unsigned long stat; unsigned int pin; chained_irq_enter(chip, desc); stat = readl(bank->reg_base + IRQ_PENDING); for_each_set_bit(pin, &stat, BITS_PER_LONG) generic_handle_irq(irq_linear_revmap(gc->irq.domain, pin)); chained_irq_exit(chip, desc); }

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#define GPIO_BANK(_bank) \ { \ .gpio_chip = { \ .label = "GPIO" #_bank, \ .request = gpiochip_generic_request, \ .free = gpiochip_generic_free, \ .get_direction = oxnas_gpio_get_direction, \ .direction_input = oxnas_gpio_direction_input, \ .direction_output = oxnas_gpio_direction_output, \ .get = oxnas_gpio_get, \ .set = oxnas_gpio_set, \ .ngpio = PINS_PER_BANK, \ .base = GPIO_BANK_START(_bank), \ .owner = THIS_MODULE, \ .can_sleep = 0, \ }, \ .irq_chip = { \ .name = "GPIO" #_bank, \ .irq_startup = oxnas_gpio_irq_startup, \ .irq_ack = oxnas_gpio_irq_ack, \ .irq_mask = oxnas_gpio_irq_mask, \ .irq_unmask = oxnas_gpio_irq_unmask, \ .irq_set_type = oxnas_gpio_irq_set_type, \ }, \ } static struct oxnas_gpio_bank oxnas_gpio_banks[] = { GPIO_BANK(0), GPIO_BANK(1), }; static struct oxnas_pinctrl ox810se_pinctrl = { .functions = oxnas_ox810se_functions, .nfunctions = ARRAY_SIZE(oxnas_ox810se_functions), .groups = oxnas_ox810se_groups, .ngroups = ARRAY_SIZE(oxnas_ox810se_groups), .gpio_banks = oxnas_gpio_banks, .nbanks = ARRAY_SIZE(oxnas_gpio_banks), }; static struct pinctrl_desc oxnas_ox810se_pinctrl_desc = { .name = "oxnas-pinctrl", .pins = oxnas_ox810se_pins, .npins = ARRAY_SIZE(oxnas_ox810se_pins), .pctlops = &oxnas_pinctrl_ops, .pmxops = &oxnas_ox810se_pinmux_ops, .confops = &oxnas_ox810se_pinconf_ops, .owner = THIS_MODULE, }; static struct oxnas_pinctrl ox820_pinctrl = { .functions = oxnas_ox820_functions, .nfunctions = ARRAY_SIZE(oxnas_ox820_functions), .groups = oxnas_ox820_groups, .ngroups = ARRAY_SIZE(oxnas_ox820_groups), .gpio_banks = oxnas_gpio_banks, .nbanks = ARRAY_SIZE(oxnas_gpio_banks), }; static struct pinctrl_desc oxnas_ox820_pinctrl_desc = { .name = "oxnas-pinctrl", .pins = oxnas_ox820_pins, .npins = ARRAY_SIZE(oxnas_ox820_pins), .pctlops = &oxnas_pinctrl_ops, .pmxops = &oxnas_ox820_pinmux_ops, .confops = &oxnas_ox820_pinconf_ops, .owner = THIS_MODULE, }; static struct oxnas_pinctrl_data oxnas_ox810se_pinctrl_data = { .desc = &oxnas_ox810se_pinctrl_desc, .pctl = &ox810se_pinctrl, }; static struct oxnas_pinctrl_data oxnas_ox820_pinctrl_data = { .desc = &oxnas_ox820_pinctrl_desc, .pctl = &ox820_pinctrl, }; static const struct of_device_id oxnas_pinctrl_of_match[] = { { .compatible = "oxsemi,ox810se-pinctrl", .data = &oxnas_ox810se_pinctrl_data }, { .compatible = "oxsemi,ox820-pinctrl", .data = &oxnas_ox820_pinctrl_data, }, { }, };
static int oxnas_pinctrl_probe(struct platform_device *pdev) { const struct of_device_id *id; const struct oxnas_pinctrl_data *data; struct oxnas_pinctrl *pctl; id = of_match_node(oxnas_pinctrl_of_match, pdev->dev.of_node); if (!id) return -ENODEV; data = id->data; if (!data || !data->pctl || !data->desc) return -EINVAL; pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL); if (!pctl) return -ENOMEM; pctl->dev = &pdev->dev; dev_set_drvdata(&pdev->dev, pctl); pctl->regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "oxsemi,sys-ctrl"); if (IS_ERR(pctl->regmap)) { dev_err(&pdev->dev, "failed to get sys ctrl regmap\n"); return -ENODEV; } pctl->functions = data->pctl->functions; pctl->nfunctions = data->pctl->nfunctions; pctl->groups = data->pctl->groups; pctl->ngroups = data->pctl->ngroups; pctl->gpio_banks = data->pctl->gpio_banks; pctl->nbanks = data->pctl->nbanks; pctl->pctldev = pinctrl_register(data->desc, &pdev->dev, pctl); if (IS_ERR(pctl->pctldev)) { dev_err(&pdev->dev, "Failed to register pinctrl device\n"); return PTR_ERR(pctl->pctldev); } return 0; }

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static int oxnas_gpio_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct of_phandle_args pinspec; struct oxnas_gpio_bank *bank; unsigned int id, ngpios; int irq, ret; struct resource *res; if (of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0, &pinspec)) { dev_err(&pdev->dev, "gpio-ranges property not found\n"); return -EINVAL; } id = pinspec.args[1] / PINS_PER_BANK; ngpios = pinspec.args[2]; if (id >= ARRAY_SIZE(oxnas_gpio_banks)) { dev_err(&pdev->dev, "invalid gpio-ranges base arg\n"); return -EINVAL; } if (ngpios > PINS_PER_BANK) { dev_err(&pdev->dev, "invalid gpio-ranges count arg\n"); return -EINVAL; } bank = &oxnas_gpio_banks[id]; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); bank->reg_base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(bank->reg_base)) return PTR_ERR(bank->reg_base); irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(&pdev->dev, "irq get failed\n"); return irq; } bank->id = id; bank->gpio_chip.parent = &pdev->dev; bank->gpio_chip.of_node = np; bank->gpio_chip.ngpio = ngpios; ret = gpiochip_add_data(&bank->gpio_chip, bank); if (ret < 0) { dev_err(&pdev->dev, "Failed to add GPIO chip %u: %d\n", id, ret); return ret; } ret = gpiochip_irqchip_add(&bank->gpio_chip, &bank->irq_chip, 0, handle_level_irq, IRQ_TYPE_NONE); if (ret < 0) { dev_err(&pdev->dev, "Failed to add IRQ chip %u: %d\n", id, ret); gpiochip_remove(&bank->gpio_chip); return ret; } gpiochip_set_chained_irqchip(&bank->gpio_chip, &bank->irq_chip, irq, oxnas_gpio_irq_handler); return 0; }

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static struct platform_driver oxnas_pinctrl_driver = { .driver = { .name = "oxnas-pinctrl", .of_match_table = oxnas_pinctrl_of_match, .suppress_bind_attrs = true, }, .probe = oxnas_pinctrl_probe, }; static const struct of_device_id oxnas_gpio_of_match[] = { { .compatible = "oxsemi,ox810se-gpio", }, { .compatible = "oxsemi,ox820-gpio", }, { }, }; static struct platform_driver oxnas_gpio_driver = { .driver = { .name = "oxnas-gpio", .of_match_table = oxnas_gpio_of_match, .suppress_bind_attrs = true, }, .probe = oxnas_gpio_probe, };
static int __init oxnas_gpio_register(void) { return platform_driver_register(&oxnas_gpio_driver); }

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Neil Armstrong16100.00%1100.00%
Total16100.00%1100.00%

arch_initcall(oxnas_gpio_register);
static int __init oxnas_pinctrl_register(void) { return platform_driver_register(&oxnas_pinctrl_driver); }

Contributors

PersonTokensPropCommitsCommitProp
Neil Armstrong16100.00%1100.00%
Total16100.00%1100.00%

arch_initcall(oxnas_pinctrl_register);

Overall Contributors

PersonTokensPropCommitsCommitProp
Neil Armstrong671899.96%583.33%
Thierry Reding30.04%116.67%
Total6721100.00%6100.00%
Directory: drivers/pinctrl
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