[deliverable/linux.git] / include / linux / platform_data / gpio-davinci.h

/*
 * DaVinci GPIO Platform Related Defines
 *
 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.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 version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether express or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifndef __DAVINCI_GPIO_PLATFORM_H
#define __DAVINCI_GPIO_PLATFORM_H

#include <linux/io.h>
#include <linux/spinlock.h>

#include <asm-generic/gpio.h>

struct davinci_gpio_platform_data {
	u32	ngpio;
	u32	gpio_unbanked;
};


struct davinci_gpio_controller {
	struct gpio_chip	chip;
	struct irq_domain	*irq_domain;
	/* Serialize access to GPIO registers */
	spinlock_t		lock;
	void __iomem		*regs;
	void __iomem		*set_data;
	void __iomem		*clr_data;
	void __iomem		*in_data;
	int			gpio_unbanked;
	unsigned		gpio_irq;
};

/*
 * basic gpio routines
 */
#define	GPIO(X)		(X)	/* 0 <= X <= (DAVINCI_N_GPIO - 1) */

/* Convert GPIO signal to GPIO pin number */
#define GPIO_TO_PIN(bank, gpio)	(16 * (bank) + (gpio))

static inline u32 __gpio_mask(unsigned gpio)
{
	return 1 << (gpio % 32);
}
#endif
Commit	Line	Data
118150f2 KS	1	/*
	2	* DaVinci GPIO Platform Related Defines
	3	*
	4	* Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License as
	8	* published by the Free Software Foundation version 2.
	9	*
	10	* This program is distributed "as is" WITHOUT ANY WARRANTY of any
	11	* kind, whether express or implied; without even the implied warranty
	12	* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*/
	15
	16	#ifndef __DAVINCI_GPIO_PLATFORM_H
	17	#define __DAVINCI_GPIO_PLATFORM_H
	18
f1a4c52f PA	19	#include <linux/io.h>
	20	#include <linux/spinlock.h>
	21
	22	#include <asm-generic/gpio.h>
	23
118150f2 KS	24	struct davinci_gpio_platform_data {
	25	u32 ngpio;
	26	u32 gpio_unbanked;
118150f2 KS	27	};
118150f2 KS	28
f1a4c52f PA	29
	30	struct davinci_gpio_controller {
	31	struct gpio_chip chip;
9211ff31	32	struct irq_domain *irq_domain;
f1a4c52f PA	33	/* Serialize access to GPIO registers */
	34	spinlock_t lock;
	35	void __iomem *regs;
	36	void __iomem *set_data;
	37	void __iomem *clr_data;
	38	void __iomem *in_data;
	39	int gpio_unbanked;
	40	unsigned gpio_irq;
	41	};
	42
	43	/*
	44	* basic gpio routines
	45	*/
	46	#define GPIO(X) (X) /* 0 <= X <= (DAVINCI_N_GPIO - 1) */
	47
	48	/* Convert GPIO signal to GPIO pin number */
	49	#define GPIO_TO_PIN(bank, gpio) (16 * (bank) + (gpio))
	50
	51	static inline u32 __gpio_mask(unsigned gpio)
	52	{
	53	return 1 << (gpio % 32);
	54	}
118150f2	55	#endif