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[ARM] 5263/2: [AT91] GPIO buttons as wakeup sources
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Allow the various GPIO-connected buttons to be used as wakeup sources.
Also enable the internal GPIO pullup.

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>
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Andrew Victor authored and Russell King committed Sep 21, 2008
1 parent 2e9f12d commit 77789ad
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Showing 3 changed files with 15 additions and 11 deletions.
8 changes: 4 additions & 4 deletions arch/arm/mach-at91/board-csb337.c
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Original file line number Diff line number Diff line change
Expand Up @@ -193,11 +193,11 @@ static struct platform_device csb300_button_device = {

static void __init csb300_add_device_buttons(void)
{
at91_set_gpio_input(AT91_PIN_PB29, 0); /* sw0 */
at91_set_gpio_input(AT91_PIN_PB29, 1); /* sw0 */
at91_set_deglitch(AT91_PIN_PB29, 1);
at91_set_gpio_input(AT91_PIN_PB28, 0); /* sw1 */
at91_set_gpio_input(AT91_PIN_PB28, 1); /* sw1 */
at91_set_deglitch(AT91_PIN_PB28, 1);
at91_set_gpio_input(AT91_PIN_PA21, 0); /* sw2 */
at91_set_gpio_input(AT91_PIN_PA21, 1); /* sw2 */
at91_set_deglitch(AT91_PIN_PA21, 1);

platform_device_register(&csb300_button_device);
Expand All @@ -224,7 +224,7 @@ static struct gpio_led csb_leds[] = {
.gpio = AT91_PIN_PB0,
.active_low = 1,
.default_trigger = "ide-disk",
},
}
};


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12 changes: 8 additions & 4 deletions arch/arm/mach-at91/board-sam9261ek.c
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Original file line number Diff line number Diff line change
Expand Up @@ -435,24 +435,28 @@ static struct gpio_keys_button ek_buttons[] = {
.code = BTN_0,
.desc = "Button 0",
.active_low = 1,
.wakeup = 1,
},
{
.gpio = AT91_PIN_PA26,
.code = BTN_1,
.desc = "Button 1",
.active_low = 1,
.wakeup = 1,
},
{
.gpio = AT91_PIN_PA25,
.code = BTN_2,
.desc = "Button 2",
.active_low = 1,
.wakeup = 1,
},
{
.gpio = AT91_PIN_PA24,
.code = BTN_3,
.desc = "Button 3",
.active_low = 1,
.wakeup = 1,
}
};

Expand All @@ -472,13 +476,13 @@ static struct platform_device ek_button_device = {

static void __init ek_add_device_buttons(void)
{
at91_set_gpio_input(AT91_PIN_PA27, 0); /* btn0 */
at91_set_gpio_input(AT91_PIN_PA27, 1); /* btn0 */
at91_set_deglitch(AT91_PIN_PA27, 1);
at91_set_gpio_input(AT91_PIN_PA26, 0); /* btn1 */
at91_set_gpio_input(AT91_PIN_PA26, 1); /* btn1 */
at91_set_deglitch(AT91_PIN_PA26, 1);
at91_set_gpio_input(AT91_PIN_PA25, 0); /* btn2 */
at91_set_gpio_input(AT91_PIN_PA25, 1); /* btn2 */
at91_set_deglitch(AT91_PIN_PA25, 1);
at91_set_gpio_input(AT91_PIN_PA24, 0); /* btn3 */
at91_set_gpio_input(AT91_PIN_PA24, 1); /* btn3 */
at91_set_deglitch(AT91_PIN_PA24, 1);

platform_device_register(&ek_button_device);
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6 changes: 3 additions & 3 deletions arch/arm/mach-at91/board-sam9263ek.c
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Original file line number Diff line number Diff line change
Expand Up @@ -297,7 +297,7 @@ static struct gpio_keys_button ek_buttons[] = {
.active_low = 1,
.desc = "right_click",
.wakeup = 1,
},
}
};

static struct gpio_keys_platform_data ek_button_data = {
Expand All @@ -316,9 +316,9 @@ static struct platform_device ek_button_device = {

static void __init ek_add_device_buttons(void)
{
at91_set_GPIO_periph(AT91_PIN_PC5, 0); /* left button */
at91_set_GPIO_periph(AT91_PIN_PC5, 1); /* left button */
at91_set_deglitch(AT91_PIN_PC5, 1);
at91_set_GPIO_periph(AT91_PIN_PC4, 0); /* right button */
at91_set_GPIO_periph(AT91_PIN_PC4, 1); /* right button */
at91_set_deglitch(AT91_PIN_PC4, 1);

platform_device_register(&ek_button_device);
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