diff options
author | Len Brown <len.brown@intel.com> | 2010-08-15 01:06:31 -0400 |
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committer | Len Brown <len.brown@intel.com> | 2010-08-15 01:06:31 -0400 |
commit | 95ee46aa8698f2000647dfb362400fadbb5807cf (patch) | |
tree | e5a05c7297f997e191c73091934e42e3195c0e40 /arch/arm/mach-s3c64xx/setup-keypad.c | |
parent | cfa806f059801dbe7e435745eb2e187c8bfe1e7f (diff) | |
parent | 92fa5bd9a946b6e7aab6764e7312e4e3d9bed295 (diff) | |
download | linux-95ee46aa8698f2000647dfb362400fadbb5807cf.tar.gz |
Merge branch 'linus' into release
Conflicts:
drivers/acpi/debug.c
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch/arm/mach-s3c64xx/setup-keypad.c')
-rw-r--r-- | arch/arm/mach-s3c64xx/setup-keypad.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c64xx/setup-keypad.c b/arch/arm/mach-s3c64xx/setup-keypad.c new file mode 100644 index 000000000000..abc34e4e1a93 --- /dev/null +++ b/arch/arm/mach-s3c64xx/setup-keypad.c @@ -0,0 +1,34 @@ +/* linux/arch/arm/mach-s3c64xx/setup-keypad.c + * + * Copyright (c) 2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * GPIO configuration for S3C64XX KeyPad device + * + * 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. +*/ + +#include <linux/gpio.h> +#include <plat/gpio-cfg.h> + +void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols) +{ + unsigned int gpio; + unsigned int end; + + /* Set all the necessary GPK pins to special-function 3: KP_ROW[x] */ + end = S3C64XX_GPK(8 + rows); + for (gpio = S3C64XX_GPK(8); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + /* Set all the necessary GPL pins to special-function 3: KP_COL[x] */ + end = S3C64XX_GPL(0 + cols); + for (gpio = S3C64XX_GPL(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } +} |