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Release 4.11 drivers/pinctrl/uniphier/pinctrl-uniphier.h

/*
 * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that 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.
 */

#ifndef __PINCTRL_UNIPHIER_H__

#define __PINCTRL_UNIPHIER_H__

#include <linux/bitops.h>
#include <linux/bug.h>
#include <linux/kernel.h>
#include <linux/types.h>

struct platform_device;


#define UNIPHIER_PINCTRL_PINMUX_BASE	0x0

#define UNIPHIER_PINCTRL_LOAD_PINMUX	0x700

#define UNIPHIER_PINCTRL_DRVCTRL_BASE	0x800

#define UNIPHIER_PINCTRL_DRV2CTRL_BASE	0x900

#define UNIPHIER_PINCTRL_DRV3CTRL_BASE	0x980

#define UNIPHIER_PINCTRL_PUPDCTRL_BASE	0xa00

#define UNIPHIER_PINCTRL_IECTRL		0xd00

/* input enable control register bit */

#define UNIPHIER_PIN_IECTRL_SHIFT	0

#define UNIPHIER_PIN_IECTRL_BITS	8

#define UNIPHIER_PIN_IECTRL_MASK	((1UL << (UNIPHIER_PIN_IECTRL_BITS)) \
                                         - 1)

/* drive strength control register number */

#define UNIPHIER_PIN_DRVCTRL_SHIFT	((UNIPHIER_PIN_IECTRL_SHIFT) + \
                                        (UNIPHIER_PIN_IECTRL_BITS))

#define UNIPHIER_PIN_DRVCTRL_BITS	9

#define UNIPHIER_PIN_DRVCTRL_MASK	((1UL << (UNIPHIER_PIN_DRVCTRL_BITS)) \
                                         - 1)

/* drive control type */

#define UNIPHIER_PIN_DRV_TYPE_SHIFT	((UNIPHIER_PIN_DRVCTRL_SHIFT) + \
                                         (UNIPHIER_PIN_DRVCTRL_BITS))

#define UNIPHIER_PIN_DRV_TYPE_BITS	3

#define UNIPHIER_PIN_DRV_TYPE_MASK	((1UL << (UNIPHIER_PIN_DRV_TYPE_BITS)) \
                                         - 1)

/* pull-up / pull-down register number */

#define UNIPHIER_PIN_PUPDCTRL_SHIFT	((UNIPHIER_PIN_DRV_TYPE_SHIFT) + \
                                         (UNIPHIER_PIN_DRV_TYPE_BITS))

#define UNIPHIER_PIN_PUPDCTRL_BITS	9

#define UNIPHIER_PIN_PUPDCTRL_MASK	((1UL << (UNIPHIER_PIN_PUPDCTRL_BITS))\
                                         - 1)

/* direction of pull register */

#define UNIPHIER_PIN_PULL_DIR_SHIFT	((UNIPHIER_PIN_PUPDCTRL_SHIFT) + \
                                         (UNIPHIER_PIN_PUPDCTRL_BITS))

#define UNIPHIER_PIN_PULL_DIR_BITS	3

#define UNIPHIER_PIN_PULL_DIR_MASK	((1UL << (UNIPHIER_PIN_PULL_DIR_BITS))\
                                         - 1)

#if UNIPHIER_PIN_PULL_DIR_SHIFT + UNIPHIER_PIN_PULL_DIR_BITS > BITS_PER_LONG
#error "unable to pack pin attributes."
#endif


#define UNIPHIER_PIN_IECTRL_NONE	(UNIPHIER_PIN_IECTRL_MASK)

/* drive control type */

enum uniphier_pin_drv_type {
	
UNIPHIER_PIN_DRV_1BIT,		/* 2 level control: 4/8 mA */
	
UNIPHIER_PIN_DRV_2BIT,		/* 4 level control: 8/12/16/20 mA */
	
UNIPHIER_PIN_DRV_3BIT,		/* 8 level control: 4/5/7/9/11/12/14/16 mA */
	
UNIPHIER_PIN_DRV_FIXED4,	/* fixed to 4mA */
	
UNIPHIER_PIN_DRV_FIXED5,	/* fixed to 5mA */
	
UNIPHIER_PIN_DRV_FIXED8,	/* fixed to 8mA */
	
UNIPHIER_PIN_DRV_NONE,		/* no support (input only pin) */
};

/* direction of pull register (no pin supports bi-directional pull biasing) */

enum uniphier_pin_pull_dir {
	
UNIPHIER_PIN_PULL_UP,		/* pull-up or disabled */
	
UNIPHIER_PIN_PULL_DOWN,		/* pull-down or disabled */
	
UNIPHIER_PIN_PULL_UP_FIXED,	/* always pull-up */
	
UNIPHIER_PIN_PULL_DOWN_FIXED,	/* always pull-down */
	
UNIPHIER_PIN_PULL_NONE,		/* no pull register */
};


#define UNIPHIER_PIN_IECTRL(x) \
	(((x) & (UNIPHIER_PIN_IECTRL_MASK)) << (UNIPHIER_PIN_IECTRL_SHIFT))

#define UNIPHIER_PIN_DRVCTRL(x) \
	(((x) & (UNIPHIER_PIN_DRVCTRL_MASK)) << (UNIPHIER_PIN_DRVCTRL_SHIFT))

#define UNIPHIER_PIN_DRV_TYPE(x) \
	(((x) & (UNIPHIER_PIN_DRV_TYPE_MASK)) << (UNIPHIER_PIN_DRV_TYPE_SHIFT))

#define UNIPHIER_PIN_PUPDCTRL(x) \
	(((x) & (UNIPHIER_PIN_PUPDCTRL_MASK)) << (UNIPHIER_PIN_PUPDCTRL_SHIFT))

#define UNIPHIER_PIN_PULL_DIR(x) \
	(((x) & (UNIPHIER_PIN_PULL_DIR_MASK)) << (UNIPHIER_PIN_PULL_DIR_SHIFT))


#define UNIPHIER_PIN_ATTR_PACKED(iectrl, drvctrl, drv_type, pupdctrl, pull_dir)\
				(UNIPHIER_PIN_IECTRL(iectrl) |          \
                                 UNIPHIER_PIN_DRVCTRL(drvctrl) |        \
                                 UNIPHIER_PIN_DRV_TYPE(drv_type) |      \
                                 UNIPHIER_PIN_PUPDCTRL(pupdctrl) |      \
                                 UNIPHIER_PIN_PULL_DIR(pull_dir))


static inline unsigned int uniphier_pin_get_iectrl(void *drv_data) { return ((unsigned long)drv_data >> UNIPHIER_PIN_IECTRL_SHIFT) & UNIPHIER_PIN_IECTRL_MASK; }

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static inline unsigned int uniphier_pin_get_drvctrl(void *drv_data) { return ((unsigned long)drv_data >> UNIPHIER_PIN_DRVCTRL_SHIFT) & UNIPHIER_PIN_DRVCTRL_MASK; }

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static inline unsigned int uniphier_pin_get_drv_type(void *drv_data) { return ((unsigned long)drv_data >> UNIPHIER_PIN_DRV_TYPE_SHIFT) & UNIPHIER_PIN_DRV_TYPE_MASK; }

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static inline unsigned int uniphier_pin_get_pupdctrl(void *drv_data) { return ((unsigned long)drv_data >> UNIPHIER_PIN_PUPDCTRL_SHIFT) & UNIPHIER_PIN_PUPDCTRL_MASK; }

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static inline unsigned int uniphier_pin_get_pull_dir(void *drv_data) { return ((unsigned long)drv_data >> UNIPHIER_PIN_PULL_DIR_SHIFT) & UNIPHIER_PIN_PULL_DIR_MASK; }

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enum uniphier_pinmux_gpio_range_type { UNIPHIER_PINMUX_GPIO_RANGE_PORT, UNIPHIER_PINMUX_GPIO_RANGE_IRQ, UNIPHIER_PINMUX_GPIO_RANGE_NONE, }; struct uniphier_pinctrl_group { const char *name; const unsigned *pins; unsigned num_pins; const int *muxvals; enum uniphier_pinmux_gpio_range_type range_type; }; struct uniphier_pinmux_function { const char *name; const char * const *groups; unsigned num_groups; }; struct uniphier_pinctrl_socdata { const struct pinctrl_pin_desc *pins; unsigned int npins; const struct uniphier_pinctrl_group *groups; int groups_count; const struct uniphier_pinmux_function *functions; int functions_count; unsigned int caps; #define UNIPHIER_PINCTRL_CAPS_PERPIN_IECTRL BIT(1) #define UNIPHIER_PINCTRL_CAPS_DBGMUX_SEPARATE BIT(0) }; #define UNIPHIER_PINCTRL_PIN(a, b, c, d, e, f, g) \ { \ .number = a, \ .name = b, \ .drv_data = (void *)UNIPHIER_PIN_ATTR_PACKED(c, d, e, f, g), \ } #define __UNIPHIER_PINCTRL_GROUP(grp, type) \ { \ .name = #grp, \ .pins = grp##_pins, \ .num_pins = ARRAY_SIZE(grp##_pins), \ .muxvals = grp##_muxvals + \ BUILD_BUG_ON_ZERO(ARRAY_SIZE(grp##_pins) != \ ARRAY_SIZE(grp##_muxvals)), \ .range_type = type, \ } #define UNIPHIER_PINCTRL_GROUP(grp) \ __UNIPHIER_PINCTRL_GROUP(grp, UNIPHIER_PINMUX_GPIO_RANGE_NONE) #define UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(grp) \ __UNIPHIER_PINCTRL_GROUP(grp, UNIPHIER_PINMUX_GPIO_RANGE_PORT) #define UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_IRQ(grp) \ __UNIPHIER_PINCTRL_GROUP(grp, UNIPHIER_PINMUX_GPIO_RANGE_IRQ) #define UNIPHIER_PINCTRL_GROUP_SINGLE(grp, array, ofst) \ { \ .name = #grp, \ .pins = array##_pins + ofst, \ .num_pins = 1, \ .muxvals = array##_muxvals + ofst, \ } #define UNIPHIER_PINMUX_FUNCTION(func) \ { \ .name = #func, \ .groups = func##_groups, \ .num_groups = ARRAY_SIZE(func##_groups), \ } int uniphier_pinctrl_probe(struct platform_device *pdev, struct uniphier_pinctrl_socdata *socdata); #endif /* __PINCTRL_UNIPHIER_H__ */

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