| Tom Rix | dd2d1cc | 2009-05-15 23:48:36 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2009 Wind River Systems, Inc. |
| 3 | * Tom Rix <Tom.Rix@windriver.com> |
| 4 | * |
| Wolfgang Denk | 5064ca4 | 2013-07-28 22:12:44 +0200 | [diff] [blame^] | 5 | * SPDX-License-Identifier: GPL-2.0 |
| Tom Rix | dd2d1cc | 2009-05-15 23:48:36 +0200 | [diff] [blame] | 6 | * |
| 7 | * This work is derived from the linux 2.6.27 kernel source |
| 8 | * To fetch, use the kernel repository |
| 9 | * git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git |
| 10 | * Use the v2.6.27 tag. |
| 11 | * |
| 12 | * Below is the original's header including its copyright |
| 13 | * |
| 14 | * linux/arch/arm/plat-omap/gpio.c |
| 15 | * |
| 16 | * Support functions for OMAP GPIO |
| 17 | * |
| 18 | * Copyright (C) 2003-2005 Nokia Corporation |
| 19 | * Written by Juha Yrjölä <juha.yrjola@nokia.com> |
| Tom Rix | dd2d1cc | 2009-05-15 23:48:36 +0200 | [diff] [blame] | 20 | */ |
| 21 | #ifndef _GPIO_H |
| 22 | #define _GPIO_H |
| 23 | |
| Aneesh V | 9a39088 | 2011-07-21 09:29:29 -0400 | [diff] [blame] | 24 | #include <asm/arch/cpu.h> |
| Tom Rix | dd2d1cc | 2009-05-15 23:48:36 +0200 | [diff] [blame] | 25 | |
| 26 | struct gpio_bank { |
| 27 | void *base; |
| 28 | int method; |
| 29 | }; |
| 30 | |
| Aneesh V | 9a39088 | 2011-07-21 09:29:29 -0400 | [diff] [blame] | 31 | extern const struct gpio_bank *const omap_gpio_bank; |
| 32 | |
| Tom Rix | dd2d1cc | 2009-05-15 23:48:36 +0200 | [diff] [blame] | 33 | #define METHOD_GPIO_24XX 4 |
| 34 | |
| Nikita Kiryanov | e3cb9c1 | 2012-11-27 22:40:57 +0000 | [diff] [blame] | 35 | /** |
| 36 | * Check if gpio is valid. |
| 37 | * |
| 38 | * @param gpio GPIO number |
| 39 | * @return 1 if ok, 0 on error |
| 40 | */ |
| 41 | int gpio_is_valid(int gpio); |
| Tom Rix | dd2d1cc | 2009-05-15 23:48:36 +0200 | [diff] [blame] | 42 | #endif /* _GPIO_H_ */ |