diff options
author | Kukjin Kim <kgene.kim@samsung.com> | 2010-08-06 21:49:18 +0900 |
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committer | Kukjin Kim <kgene.kim@samsung.com> | 2010-08-06 21:49:18 +0900 |
commit | d61bd77ff1e7c7a0a381c6e656dbc07b37510f37 (patch) | |
tree | 838f7b1c4d931814fbbc30643bb423f409e6daba /arch/arm/mach-s3c64xx/setup-keypad.c | |
parent | f2b7e3c54a304677a1142829fb5913595885379f (diff) | |
parent | 1c739c7f374f77c5a355273c0c1d9345ed08c0ce (diff) |
Merge branch 'next-samsung' into for-next
Conflicts:
arch/arm/mach-s5p6440/Kconfig
arch/arm/mach-s5p6442/Kconfig
arch/arm/mach-s5pc100/Kconfig
arch/arm/mach-s5pv210/Kconfig
arch/arm/mach-s5pv210/cpu.c
arch/arm/plat-samsung/include/plat/sdhci.h
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 00000000000..abc34e4e1a9 --- /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); + } +} |