56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/*
|
|
* 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
|