path: root/drivers/pinctrl/pinctrl-ep93xx.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Driver for the EP93xx pin controller
 * based on linux/drivers/pinctrl/pinmux-gemini.c
 *
 * Copyright (C) 2022 Nikita Shubin <nikita.shubin@maquefel.me>
 *
 * This is a group-only pin controller.
 */
#include <linux/array_size.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/mfd/syscon.h>
#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/seq_file.h>
#include <linux/slab.h>

#include <linux/soc/cirrus/ep93xx.h>

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

#include "pinctrl-utils.h"

#define DRIVER_NAME "pinctrl-ep93xx"

enum ep93xx_pinctrl_model {
	EP93XX_9301_PINCTRL,
	EP93XX_9307_PINCTRL,
	EP93XX_9312_PINCTRL,
};

struct ep93xx_pmx {
	struct device *dev;
	struct pinctrl_dev *pctl;
	struct ep93xx_regmap_adev *aux_dev;
	struct regmap *map;
	enum ep93xx_pinctrl_model model;
};

static void ep93xx_pinctrl_update_bits(struct ep93xx_pmx *pmx, unsigned int reg,
				       unsigned int mask, unsigned int val)
{
	struct ep93xx_regmap_adev *aux = pmx->aux_dev;

	aux->update_bits(aux->map, aux->lock, reg, mask, val);
}

struct ep93xx_pin_group {
	struct pingroup grp;
	u32 mask