125223a68SAneesh V /* 225223a68SAneesh V * Copyright (c) 2009 Wind River Systems, Inc. 325223a68SAneesh V * Tom Rix <Tom.Rix@windriver.com> 425223a68SAneesh V * 5bcd4d4ebSWolfgang Denk * SPDX-License-Identifier: GPL-2.0 625223a68SAneesh V * 725223a68SAneesh V * This work is derived from the linux 2.6.27 kernel source 825223a68SAneesh V * To fetch, use the kernel repository 925223a68SAneesh V * git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git 1025223a68SAneesh V * Use the v2.6.27 tag. 1125223a68SAneesh V * 1225223a68SAneesh V * Below is the original's header including its copyright 1325223a68SAneesh V * 1425223a68SAneesh V * linux/arch/arm/plat-omap/gpio.c 1525223a68SAneesh V * 1625223a68SAneesh V * Support functions for OMAP GPIO 1725223a68SAneesh V * 1825223a68SAneesh V * Copyright (C) 2003-2005 Nokia Corporation 1925223a68SAneesh V * Written by Juha Yrjölä <juha.yrjola@nokia.com> 2025223a68SAneesh V */ 2125223a68SAneesh V #ifndef _GPIO_H 2225223a68SAneesh V #define _GPIO_H 2325223a68SAneesh V 2425223a68SAneesh V #include <asm/arch/cpu.h> 2525223a68SAneesh V 265915a2adSSimon Glass #ifdef CONFIG_DM_GPIO 275915a2adSSimon Glass 285915a2adSSimon Glass /* Information about a GPIO bank */ 295915a2adSSimon Glass struct omap_gpio_platdata { 305915a2adSSimon Glass int bank_index; 315915a2adSSimon Glass ulong base; /* address of registers in physical memory */ 32*0a9e3405STom Rini const char *port_name; 335915a2adSSimon Glass }; 345915a2adSSimon Glass 355915a2adSSimon Glass #else 365915a2adSSimon Glass 3725223a68SAneesh V struct gpio_bank { 3825223a68SAneesh V void *base; 3925223a68SAneesh V }; 4025223a68SAneesh V 4125223a68SAneesh V extern const struct gpio_bank *const omap_gpio_bank; 4225223a68SAneesh V 43dcee1ab3SNikita Kiryanov /** 44dcee1ab3SNikita Kiryanov * Check if gpio is valid. 45dcee1ab3SNikita Kiryanov * 46dcee1ab3SNikita Kiryanov * @param gpio GPIO number 47dcee1ab3SNikita Kiryanov * @return 1 if ok, 0 on error 48dcee1ab3SNikita Kiryanov */ 49dcee1ab3SNikita Kiryanov int gpio_is_valid(int gpio); 505915a2adSSimon Glass #endif 515915a2adSSimon Glass 5225223a68SAneesh V #endif /* _GPIO_H_ */ 53