| /* arch/arm/mach-s3c24100/include/mach/gpio-core.h |
| * |
| * Copyright 2008 Openmoko, Inc. |
| * Copyright 2008 Simtec Electronics |
| * Ben Dooks <ben@simtec.co.uk> |
| * http://armlinux.simtec.co.uk/ |
| * |
| * S3C2410 - GPIO core support |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #ifndef __ASM_ARCH_GPIO_CORE_H |
| #define __ASM_ARCH_GPIO_CORE_H __FILE__ |
| |
| #include <mach/regs-gpio.h> |
| |
| extern struct s3c_gpio_chip s3c24xx_gpios[]; |
| |
| static inline struct s3c_gpio_chip *s3c_gpiolib_getchip(unsigned int pin) |
| { |
| struct s3c_gpio_chip *chip; |
| |
| if (pin > S3C_GPIO_END) |
| return NULL; |
| |
| chip = &s3c24xx_gpios[pin/32]; |
| return ((pin - chip->chip.base) < chip->chip.ngpio) ? chip : NULL; |
| } |
| |
| #endif /* __ASM_ARCH_GPIO_CORE_H */ |
