diff options
Diffstat (limited to 'arch/arm/mach-s3c/setup-keypad-s3c64xx.c')
| -rw-r--r-- | arch/arm/mach-s3c/setup-keypad-s3c64xx.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c/setup-keypad-s3c64xx.c b/arch/arm/mach-s3c/setup-keypad-s3c64xx.c new file mode 100644 index 0000000000..8463ad37c6 --- /dev/null +++ b/arch/arm/mach-s3c/setup-keypad-s3c64xx.c @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2010 Samsung Electronics Co., Ltd. +// http://www.samsung.com/ +// +// GPIO configuration for S3C64XX KeyPad device + +#include <linux/gpio.h> +#include "gpio-cfg.h" +#include "keypad.h" +#include "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)); +} |