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authorAndrew Victor <andrew@sanpeople.com>2007-06-04 03:41:59 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-07-12 06:11:21 -0400
commitd0f9b55ece0ec1ffc9e2e57fd7a79200994aead4 (patch)
treeda67cbf9d0bf6850e4ba98e642ebdf0821c21f91 /arch/arm/mach-at91
parentcdf95c73694e464cf9877cb5aa51df77f42815bc (diff)
[ARM] 4420/2: AT91: GPIO buttons on SAM9261-EK board
Register the GPIO-connected buttons on the SAM9261-EK board as a "gpio-keys" platform device. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-at91')
-rw-r--r--arch/arm/mach-at91/board-sam9261ek.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c
index 579b41f0c328..42e172cb0f49 100644
--- a/arch/arm/mach-at91/board-sam9261ek.c
+++ b/arch/arm/mach-at91/board-sam9261ek.c
@@ -28,6 +28,8 @@
28#include <linux/spi/ads7846.h> 28#include <linux/spi/ads7846.h>
29#include <linux/dm9000.h> 29#include <linux/dm9000.h>
30#include <linux/fb.h> 30#include <linux/fb.h>
31#include <linux/gpio_keys.h>
32#include <linux/input.h>
31 33
32#include <video/atmel_lcdc.h> 34#include <video/atmel_lcdc.h>
33 35
@@ -333,6 +335,68 @@ static struct atmel_lcdfb_info __initdata ek_lcdc_data;
333#endif 335#endif
334 336
335 337
338/*
339 * GPIO Buttons
340 */
341#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
342static struct gpio_keys_button ek_buttons[] = {
343 {
344 .gpio = AT91_PIN_PA27,
345 .keycode = BTN_0,
346 .desc = "Button 0",
347 .active_low = 1,
348 },
349 {
350 .gpio = AT91_PIN_PA26,
351 .keycode = BTN_1,
352 .desc = "Button 1",
353 .active_low = 1,
354 },
355 {
356 .gpio = AT91_PIN_PA25,
357 .keycode = BTN_2,
358 .desc = "Button 2",
359 .active_low = 1,
360 },
361 {
362 .gpio = AT91_PIN_PA24,
363 .keycode = BTN_3,
364 .desc = "Button 3",
365 .active_low = 1,
366 }
367};
368
369static struct gpio_keys_platform_data ek_button_data = {
370 .buttons = ek_buttons,
371 .nbuttons = ARRAY_SIZE(ek_buttons),
372};
373
374static struct platform_device ek_button_device = {
375 .name = "gpio-keys",
376 .id = -1,
377 .num_resources = 0,
378 .dev = {
379 .platform_data = &ek_button_data,
380 }
381};
382
383static void __init ek_add_device_buttons(void)
384{
385 at91_set_gpio_input(AT91_PIN_PB27, 0); /* btn0 */
386 at91_set_deglitch(AT91_PIN_PB27, 1);
387 at91_set_gpio_input(AT91_PIN_PB26, 0); /* btn1 */
388 at91_set_deglitch(AT91_PIN_PB26, 1);
389 at91_set_gpio_input(AT91_PIN_PB25, 0); /* btn2 */
390 at91_set_deglitch(AT91_PIN_PB25, 1);
391 at91_set_gpio_input(AT91_PIN_PB24, 0); /* btn3 */
392 at91_set_deglitch(AT91_PIN_PB24, 1);
393
394 platform_device_register(&ek_button_device);
395}
396#else
397static void __init ek_add_device_buttons(void) {}
398#endif
399
336static void __init ek_board_init(void) 400static void __init ek_board_init(void)
337{ 401{
338 /* Serial */ 402 /* Serial */
@@ -360,6 +424,8 @@ static void __init ek_board_init(void)
360#endif 424#endif
361 /* LCD Controller */ 425 /* LCD Controller */
362 at91_add_device_lcdc(&ek_lcdc_data); 426 at91_add_device_lcdc(&ek_lcdc_data);
427 /* Push Buttons */
428 ek_add_device_buttons();
363} 429}
364 430
365MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK") 431MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")