diff options
author | Joonyoung Shim <jy0922.shim@samsung.com> | 2010-06-21 16:28:28 +0900 |
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committer | Kukjin Kim <kgene.kim@samsung.com> | 2010-08-05 18:31:01 +0900 |
commit | e7d0628ceacf59edc1c9c390a3117fc177486817 (patch) | |
tree | 57169999a7aa0beb64ab02556d31aa170c595be5 /arch/arm/mach-s5pv210/setup-keypad.c | |
parent | 6901bbc8024524c9b4bb5d7a38c84c83e4646eeb (diff) |
ARM: S5PV210: Add keypad device helpers
This patch adds the keypad device platform helpers for S5PV210 cpu.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-s5pv210/setup-keypad.c')
-rw-r--r-- | arch/arm/mach-s5pv210/setup-keypad.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pv210/setup-keypad.c b/arch/arm/mach-s5pv210/setup-keypad.c new file mode 100644 index 00000000000..37b2790aafc --- /dev/null +++ b/arch/arm/mach-s5pv210/setup-keypad.c @@ -0,0 +1,34 @@ +/* + * linux/arch/arm/mach-s5pv210/setup-keypad.c + * + * Copyright (C) 2010 Samsung Electronics Co.Ltd + * Author: Joonyoung Shim <jy0922.shim@samsung.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/gpio.h> +#include <plat/gpio-cfg.h> + +void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols) +{ + unsigned int gpio, end; + + /* Set all the necessary GPH3 pins to special-function 3: KP_ROW[x] */ + end = S5PV210_GPH3(rows); + for (gpio = S5PV210_GPH3(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + /* Set all the necessary GPH2 pins to special-function 3: KP_COL[x] */ + end = S5PV210_GPH2(cols); + for (gpio = S5PV210_GPH2(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } +} |