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[ARM] 5564/1: at91: add gpio button and leds support for at91sam9rlek

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This adds input keyboard gpio support on at91sam9rlek board. It adds button 1
and 2 (left and right click).
It also adds gpio leds ds1, ds2 and ds3.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Nicolas Ferre
2009-06-24 17:13:47 +01:00
committed by Russell King
parent 28d0325ce6
commit 226ddb9833
1 changed files with 79 additions and 0 deletions
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79
arch/arm/mach-at91/board-sam9rlek.c
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@@ -15,6 +15,8 @@
#include <linux/spi/spi.h> #include <linux/spi/spi.h>
#include <linux/fb.h> #include <linux/fb.h>
#include <linux/clk.h> #include <linux/clk.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <video/atmel_lcdc.h> #include <video/atmel_lcdc.h>
@@ -206,6 +208,79 @@ static struct atmel_lcdfb_info __initdata ek_lcdc_data;
#endif #endif
/*
* LEDs
*/
static struct gpio_led ek_leds[] = {
{ /* "bottom" led, green, userled1 to be defined */
.name = "ds1",
.gpio = AT91_PIN_PD15,
.active_low = 1,
.default_trigger = "none",
},
{ /* "bottom" led, green, userled2 to be defined */
.name = "ds2",
.gpio = AT91_PIN_PD16,
.active_low = 1,
.default_trigger = "none",
},
{ /* "power" led, yellow */
.name = "ds3",
.gpio = AT91_PIN_PD14,
.default_trigger = "heartbeat",
}
};
/*
* GPIO Buttons
*/
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button ek_buttons[] = {
{
.gpio = AT91_PIN_PB0,
.code = BTN_2,
.desc = "Right Click",
.active_low = 1,
.wakeup = 1,
},
{
.gpio = AT91_PIN_PB1,
.code = BTN_1,
.desc = "Left Click",
.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_PB1, 1); /* btn1 */
at91_set_deglitch(AT91_PIN_PB1, 1);
at91_set_gpio_input(AT91_PIN_PB0, 1); /* btn2 */
at91_set_deglitch(AT91_PIN_PB0, 1);
platform_device_register(&ek_button_device);
}
#else
static void __init ek_add_device_buttons(void) {}
#endif
static void __init ek_board_init(void) static void __init ek_board_init(void)
{ {
/* Serial */ /* Serial */
@@ -224,6 +299,10 @@ static void __init ek_board_init(void)
at91_add_device_lcdc(&ek_lcdc_data); at91_add_device_lcdc(&ek_lcdc_data);
/* Touch Screen Controller */ /* Touch Screen Controller */
at91_add_device_tsadcc(); at91_add_device_tsadcc();
/* LEDs */
at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
/* Push Buttons */
ek_add_device_buttons();
} }
MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK") MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")