jenna
/
kernel_samsung_sm7125
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
707689 Commits
5 Branches
0 Tags
1.2 GiB
Tag: Branch: Tree: bb176f6709
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from 'bb176f6709'
${ noResults }
kernel_samsung_sm7125/arch/powerpc/sysdev/simple_gpio.h

13 lines
315 B
Raw Normal View History Unescape

powerpc: Implement GPIO driver for simple memory-mapped banks The driver supports very simple GPIO controllers, that is, when a controller provides just a 'data' register. Such controllers may be found in various BCSRs (Board's FPGAs used to control board's switches, LEDs, chip-selects, Ethernet/USB PHY power, etc). So far we support only 1-byte GPIO banks. Support for other widths may be implemented when/if needed. p.s. To avoid "made up" compatible entries (like compatible = "simple-gpio"), boards must call simple_gpiochip_init() to pass the compatible string. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
16 years ago
#ifndef __SYSDEV_SIMPLE_GPIO_H
#define __SYSDEV_SIMPLE_GPIO_H
#include <linux/errno.h>
#ifdef CONFIG_SIMPLE_GPIO
extern void simple_gpiochip_init(const char *compatible);
#else
static inline void simple_gpiochip_init(const char *compatible) {}
#endif /* CONFIG_SIMPLE_GPIO */
#endif /* __SYSDEV_SIMPLE_GPIO_H */