Release 4.11 drivers/pinctrl/vt8500/pinctrl-wmt.h

/*
 * Pinctrl driver for the Wondermedia SoC's
 *
 * Copyright (c) 2013 Tony Prisk <linux@prisktech.co.nz>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions 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.h>

/* VT8500 has no enable register in the extgpio bank. */

#define NO_REG	0xFFFF


#define WMT_PINCTRL_BANK(__en, __dir, __dout, __din, __pen, __pcfg)	\
{                                                                       \
        .reg_en         = __en,                                         \
        .reg_dir        = __dir,                                        \
        .reg_data_out   = __dout,                                       \
        .reg_data_in    = __din,                                        \
        .reg_pull_en    = __pen,                                        \
        .reg_pull_cfg   = __pcfg,                                       \
}

/* Encode/decode the bank/bit pairs into a pin value */

#define WMT_PIN(__bank, __offset)	((__bank << 5) | __offset)

#define WMT_BANK_FROM_PIN(__pin)	(__pin >> 5)

#define WMT_BIT_FROM_PIN(__pin)		(__pin & 0x1f)


#define WMT_GROUP(__name, __data)		\
{                                               \
        .name = __name,                         \
        .pins = __data,                         \
        .npins = ARRAY_SIZE(__data),            \
}


struct wmt_pinctrl_bank_registers {
	
u32	reg_en;
	
u32	reg_dir;
	
u32	reg_data_out;
	
u32	reg_data_in;

	
u32	reg_pull_en;
	
u32	reg_pull_cfg;
};


struct wmt_pinctrl_group {
	
const char *name;
	
const unsigned int *pins;
	
const unsigned npins;
};


struct wmt_pinctrl_data {
	
struct device *dev;
	
struct pinctrl_dev *pctl_dev;

	/* must be initialized before calling wmt_pinctrl_probe */
	
void __iomem *base;
	
const struct wmt_pinctrl_bank_registers *banks;
	
const struct pinctrl_pin_desc *pins;
	
const char * const *groups;

	
u32 nbanks;
	
u32 npins;
	
u32 ngroups;

	
struct gpio_chip gpio_chip;
	
struct pinctrl_gpio_range gpio_range;
};

int wmt_pinctrl_probe(struct platform_device *pdev,
		      struct wmt_pinctrl_data *data);
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Directory: drivers/pinctrl/vt8500

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