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yaml
---
r: 69368
b: refs/heads/master
c: e15b021
h: refs/heads/master
v: v3
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Anti Sullin authored and Dmitry Torokhov committed Sep 26, 2007
1 parent 1a7b675 commit 6616be8
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Showing 3 changed files with 54 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 006df3024431a50262d4a2898d25924f84fb697a
refs/heads/master: e15b02138b89d7bc053817e6f7601e92e29d371c
52 changes: 52 additions & 0 deletions trunk/drivers/input/keyboard/gpio_keys.c
Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,7 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
struct gpio_keys_platform_data *pdata = pdev->dev.platform_data;
struct input_dev *input;
int i, error;
int wakeup = 0;

input = input_allocate_device();
if (!input)
Expand Down Expand Up @@ -100,6 +101,9 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
goto fail;
}

if (button->wakeup)
wakeup = 1;

input_set_capability(input, type, button->code);
}

Expand All @@ -111,6 +115,8 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
goto fail;
}

device_init_wakeup(&pdev->dev, wakeup);

return 0;

fail:
Expand All @@ -129,6 +135,8 @@ static int __devexit gpio_keys_remove(struct platform_device *pdev)
struct input_dev *input = platform_get_drvdata(pdev);
int i;

device_init_wakeup(&pdev->dev, 0);

for (i = 0; i < pdata->nbuttons; i++) {
int irq = gpio_to_irq(pdata->buttons[i].gpio);
free_irq(irq, pdev);
Expand All @@ -139,9 +147,53 @@ static int __devexit gpio_keys_remove(struct platform_device *pdev)
return 0;
}


#ifdef CONFIG_PM
static int gpio_keys_suspend(struct platform_device *pdev, pm_message_t state)
{
struct gpio_keys_platform_data *pdata = pdev->dev.platform_data;
int i;

if (device_may_wakeup(&pdev->dev)) {
for (i = 0; i < pdata->nbuttons; i++) {
struct gpio_keys_button *button = &pdata->buttons[i];
if (button->wakeup) {
int irq = gpio_to_irq(button->gpio);
enable_irq_wake(irq);
}
}
}

return 0;
}

static int gpio_keys_resume(struct platform_device *pdev)
{
struct gpio_keys_platform_data *pdata = pdev->dev.platform_data;
int i;

if (device_may_wakeup(&pdev->dev)) {
for (i = 0; i < pdata->nbuttons; i++) {
struct gpio_keys_button *button = &pdata->buttons[i];
if (button->wakeup) {
int irq = gpio_to_irq(button->gpio);
disable_irq_wake(irq);
}
}
}

return 0;
}
#else
#define gpio_keys_suspend NULL
#define gpio_keys_resume NULL
#endif

struct platform_driver gpio_keys_device_driver = {
.probe = gpio_keys_probe,
.remove = __devexit_p(gpio_keys_remove),
.suspend = gpio_keys_suspend,
.resume = gpio_keys_resume,
.driver = {
.name = "gpio-keys",
}
Expand Down
1 change: 1 addition & 0 deletions trunk/include/linux/gpio_keys.h
Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ struct gpio_keys_button {
int active_low;
char *desc;
int type; /* input event type (EV_KEY, EV_SW) */
int wakeup; /* configure the button as a wake-up source */
};

struct gpio_keys_platform_data {
Expand Down

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