UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

[ARM] 5262/2: [AT91] Support for GPIO-connected buttons on SAM9260-EK board 

Add support or the GPIO-connected buttons on the Atmel AT91SAM9260-EK board.

Signed-off-by: Sedji Gaouaou <sedji.gaouaou@atmel.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Andrew Victor 2008-09-21 21:32:40 +01:00 committed by Russell King
parent f7647e63f3
commit 2e9f12d6dd
1 changed files with 54 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
arch/arm/mach-at91/board-sam9260ek.c
View File

@ -28,6 +28,8 @@
#include <linux/spi/at73c213.h>
#include <linux/clk.h>
#include <linux/i2c/at24.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
@ -240,6 +242,56 @@ static struct i2c_board_info __initdata ek_i2c_devices[] = {
/* more devices can be added using expansion connectors */
};
/*
* GPIO Buttons
*/
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button ek_buttons[] = {
{
.gpio = AT91_PIN_PA30,
.code = BTN_3,
.desc = "Button 3",
.active_low = 1,
.wakeup = 1,
},
{
.gpio = AT91_PIN_PA31,
.code = BTN_4,
.desc = "Button 4",
.active_low = 1,
.wakeup = 1,
}
};
static struct gpio_keys_platform_data ek_button_data = {
.buttons = ek_buttons,
.nbuttons = ARRAY_SIZE(ek_buttons),
};
static struct platform_device ek_button_device = {
.name = "gpio-keys",
.id = -1,
.num_resources = 0,
.dev = {
.platform_data = &ek_button_data,
}
};
static void __init ek_add_device_buttons(void)
{
at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */
at91_set_deglitch(AT91_PIN_PA30, 1);
at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */
at91_set_deglitch(AT91_PIN_PA31, 1);
platform_device_register(&ek_button_device);
}
#else
static void __init ek_add_device_buttons(void) {}
#endif
static void __init ek_board_init(void)
{
/* Serial */
@ -263,6 +315,8 @@ static void __init ek_board_init(void)
at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
/* LEDs */
at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
/* Push Buttons */
ek_add_device_buttons();
}
MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK")