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ARM: mx5: Add gpio-keys to mx51 babbage board

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Add functionality for the power button on MX51 Babbage board.

Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Dinh Nguyen 2010-10-23 09:12:47 -05:00 committed by Sascha Hauer
parent 47c5382287
commit f2d36ecbca
3 changed files with 27 additions and 0 deletions
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1
arch/arm/configs/mx51_defconfig
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@ -82,6 +82,7 @@ CONFIG_FEC=y
CONFIG_INPUT_FF_MEMLESS=m
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=y
CONFIG_KEYBOARD_GPIO=y
CONFIG_INPUT_EVBUG=m
CONFIG_MOUSE_PS2=m
CONFIG_MOUSE_PS2_ELANTECH=y

24
arch/arm/mach-mx5/board-mx51_babbage.c
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@ -18,6 +18,8 @@
#include <linux/io.h>
#include <linux/fsl_devices.h>
#include <linux/fec.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <mach/common.h>
#include <mach/hardware.h>
@ -38,6 +40,7 @@
#define BABBAGE_USBH1_STP (0*32 + 27) /* GPIO_1_27 */
#define BABBAGE_PHY_RESET (1*32 + 5) /* GPIO_2_5 */
#define BABBAGE_FEC_PHY_RESET (1*32 + 14) /* GPIO_2_14 */
#define BABBAGE_POWER_KEY (1*32 + 21) /* GPIO_2_21 */
/* USB_CTRL_1 */
#define MX51_USB_CTRL_1_OFFSET 0x10
@ -47,6 +50,21 @@
#define MX51_USB_PLL_DIV_19_2_MHZ 0x01
#define MX51_USB_PLL_DIV_24_MHZ 0x02
static struct gpio_keys_button babbage_buttons[] = {
{
.gpio = BABBAGE_POWER_KEY,
.code = BTN_0,
.desc = "PWR",
.active_low = 1,
.wakeup = 1,
},
};
static const struct gpio_keys_platform_data imx_button_data __initconst = {
.buttons = babbage_buttons,
.nbuttons = ARRAY_SIZE(babbage_buttons),
};
static struct pad_desc mx51babbage_pads[] = {
/* UART1 */
MX51_PAD_UART1_RXD__UART1_RXD,
@ -298,6 +316,7 @@ __setup("otg_mode=", babbage_otg_mode);
static void __init mxc_board_init(void)
{
struct pad_desc usbh1stp = MX51_PAD_USBH1_STP__USBH1_STP;
struct pad_desc power_key = MX51_PAD_EIM_A27__GPIO_2_21;
#if defined(CONFIG_CPU_FREQ_IMX)
get_cpu_op = mx51_get_cpu_op;
@ -308,6 +327,11 @@ static void __init mxc_board_init(void)
babbage_fec_reset();
imx51_add_fec(NULL);
/* Set the PAD settings for the pwr key. */
power_key.pad_ctrl = MX51_GPIO_PAD_CTRL_2;
mxc_iomux_v3_setup_pad(&power_key);
imx51_add_gpio_keys(&imx_button_data);
imx51_add_imx_i2c(0, &babbage_i2c_data);
imx51_add_imx_i2c(1, &babbage_i2c_data);
mxc_register_device(&mxc_hsi2c_device, &babbage_hsi2c_data);

2
arch/arm/mach-mx5/devices-imx51.h
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@ -13,6 +13,8 @@ extern const struct imx_fec_data imx51_fec_data __initconst;
#define imx51_add_fec(pdata) \
imx_add_fec(&imx51_fec_data, pdata)
#define imx51_add_gpio_keys(pdata) imx_add_gpio_keys(pdata)
extern const struct imx_imx_i2c_data imx51_imx_i2c_data[] __initconst;
#define imx51_add_imx_i2c(id, pdata) \
imx_add_imx_i2c(&imx51_imx_i2c_data[id], pdata)