diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-10-11 10:55:04 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-10-11 10:55:04 +0100 |
| commit | a0f0dd57f4a85310d9936f1770a0424b49fef876 (patch) | |
| tree | 2f85b8b67dda13d19b02ca39e0fbef921cb1cf8b /arch/arm/mach-shmobile/sh-gpio.h | |
| parent | 2a552d5e63d7fa602c9a9a0717008737f55625a6 (diff) | |
| parent | 846a136881b8f73c1f74250bf6acfaa309cab1f2 (diff) | |
Merge branch 'fixes' into for-linus
Conflicts:
arch/arm/kernel/smp.c
Diffstat (limited to 'arch/arm/mach-shmobile/sh-gpio.h')
| -rw-r--r-- | arch/arm/mach-shmobile/sh-gpio.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/sh-gpio.h b/arch/arm/mach-shmobile/sh-gpio.h new file mode 100644 index 000000000000..e834763ac2a5 --- /dev/null +++ b/arch/arm/mach-shmobile/sh-gpio.h @@ -0,0 +1,48 @@ +/* + * Generic GPIO API and pinmux table support + * + * Copyright (c) 2008 Magnus Damm + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#ifndef __ASM_ARCH_GPIO_H +#define __ASM_ARCH_GPIO_H + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/io.h> + +/* + * FIXME !! + * + * current gpio frame work doesn't have + * the method to control only pull up/down/free. + * this function should be replaced by correct gpio function + */ +static inline void __init gpio_direction_none(void __iomem * addr) +{ + __raw_writeb(0x00, addr); +} + +static inline void __init gpio_request_pullup(void __iomem * addr) +{ + u8 data = __raw_readb(addr); + + data &= 0x0F; + data |= 0xC0; + __raw_writeb(data, addr); +} + +static inline void __init gpio_request_pulldown(void __iomem * addr) +{ + u8 data = __raw_readb(addr); + + data &= 0x0F; + data |= 0xA0; + + __raw_writeb(data, addr); +} + +#endif /* __ASM_ARCH_GPIO_H */ |