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Commit f2d36ecb authored by Dinh Nguyen's avatar Dinh Nguyen Committed by Sascha Hauer
Browse files

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



Add functionality for the power button on MX51 Babbage board.

Signed-off-by: default avatarDinh Nguyen <Dinh.Nguyen@freescale.com>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 47c53822

arch/arm/configs/mx51_defconfig

+1 −0
Original line number Diff line number Diff line
@@ -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

arch/arm/mach-mx5/board-mx51_babbage.c

+24 −0
Original line number Diff line number Diff line
@@ -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);

arch/arm/mach-mx5/devices-imx51.h

+2 −0
Original line number Diff line number Diff line
@@ -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)