diff options
Diffstat (limited to 'kernel/arch/arm/mach-s3c64xx/setup-keypad.c')
| -rw-r--r-- | kernel/arch/arm/mach-s3c64xx/setup-keypad.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-s3c64xx/setup-keypad.c b/kernel/arch/arm/mach-s3c64xx/setup-keypad.c new file mode 100644 index 000000000..6ad9a89df --- /dev/null +++ b/kernel/arch/arm/mach-s3c64xx/setup-keypad.c @@ -0,0 +1,25 @@ +/* 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> +#include <plat/keypad.h> +#include <mach/gpio-samsung.h> + +void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols) +{ + /* Set all the necessary GPK pins to special-function 3: KP_ROW[x] */ + s3c_gpio_cfgrange_nopull(S3C64XX_GPK(8), rows, S3C_GPIO_SFN(3)); + + /* Set all the necessary GPL pins to special-function 3: KP_COL[x] */ + s3c_gpio_cfgrange_nopull(S3C64XX_GPL(0), cols, S3C_GPIO_SFN(3)); +} |