| Tony Lindgren | 120db2c | 2006-04-02 17:46:27 +0100 | [diff] [blame] | 1 | /* |
| 2 | * linux/include/asm-arm/arch-omap/gpioexpander.h |
| 3 | * |
| 4 | * |
| 5 | * Copyright (C) 2004 Texas Instruments, Inc. |
| 6 | * |
| 7 | * This package is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
| 12 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
| 13 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 14 | */ |
| 15 | |
| 16 | #ifndef __ASM_ARCH_OMAP_GPIOEXPANDER_H |
| 17 | #define __ASM_ARCH_OMAP_GPIOEXPANDER_H |
| 18 | |
| 19 | /* Function Prototypes for GPIO Expander functions */ |
| 20 | |
| Tony Lindgren | 09be755 | 2008-03-03 01:31:32 -0800 | [diff] [blame] | 21 | #ifdef CONFIG_GPIOEXPANDER_OMAP |
| Tony Lindgren | 120db2c | 2006-04-02 17:46:27 +0100 | [diff] [blame] | 22 | int read_gpio_expa(u8 *, int); |
| 23 | int write_gpio_expa(u8 , int); |
| Tony Lindgren | 09be755 | 2008-03-03 01:31:32 -0800 | [diff] [blame] | 24 | #else |
| 25 | static inline int read_gpio_expa(u8 *val, int addr) |
| 26 | { |
| 27 | return 0; |
| 28 | } |
| 29 | static inline int write_gpio_expa(u8 val, int addr) |
| 30 | { |
| 31 | return 0; |
| 32 | } |
| 33 | #endif |
| Tony Lindgren | 120db2c | 2006-04-02 17:46:27 +0100 | [diff] [blame] | 34 | |
| 35 | #endif /* __ASM_ARCH_OMAP_GPIOEXPANDER_H */ |