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Diffstat (limited to 'arch/arm/mach-s3c24xx/include/mach/gpio-track.h')
-rw-r--r--arch/arm/mach-s3c24xx/include/mach/gpio-track.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c24xx/include/mach/gpio-track.h b/arch/arm/mach-s3c24xx/include/mach/gpio-track.h
new file mode 100644
index 00000000000..c410a078622
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/include/mach/gpio-track.h
@@ -0,0 +1,33 @@
1/* arch/arm/mach-s3c24100/include/mach/gpio-core.h
2 *
3 * Copyright 2008 Openmoko, Inc.
4 * Copyright 2008 Simtec Electronics
5 * Ben Dooks <ben@simtec.co.uk>
6 * http://armlinux.simtec.co.uk/
7 *
8 * S3C2410 - GPIO core support
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13*/
14
15#ifndef __ASM_ARCH_GPIO_CORE_H
16#define __ASM_ARCH_GPIO_CORE_H __FILE__
17
18#include <mach/regs-gpio.h>
19
20extern struct samsung_gpio_chip s3c24xx_gpios[];
21
22static inline struct samsung_gpio_chip *samsung_gpiolib_getchip(unsigned int pin)
23{
24 struct samsung_gpio_chip *chip;
25
26 if (pin > S3C_GPIO_END)
27 return NULL;
28
29 chip = &s3c24xx_gpios[pin/32];
30 return ((pin - chip->chip.base) < chip->chip.ngpio) ? chip : NULL;
31}
32
33#endif /* __ASM_ARCH_GPIO_CORE_H */