hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Input: omap-keypad - enable wakeup capability for keypad. 

Enable/disable IRQ wake in suspend/resume handlers
to make the keypad wakeup capable.

Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Illia Smyrnov 2013-08-25 23:29:30 -07:00 committed by Dmitry Torokhov
parent afbac60b0c
commit 78608a0d94
1 changed files with 39 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
drivers/input/keyboard/omap4-keypad.c
View File

@ -74,6 +74,7 @@ struct omap4_keypad {
struct input_dev *input;
void __iomem *base;
bool irq_wake_enabled;
unsigned int irq;
unsigned int rows;
@ -380,6 +381,7 @@ static int omap4_keypad_probe(struct platform_device *pdev)
goto err_free_input;
}
device_init_wakeup(&pdev->dev, true);
pm_runtime_put_sync(&pdev->dev);
error = input_register_device(keypad_data->input);
@ -393,6 +395,7 @@ static int omap4_keypad_probe(struct platform_device *pdev)
err_pm_disable:
pm_runtime_disable(&pdev->dev);
device_init_wakeup(&pdev->dev, false);
free_irq(keypad_data->irq, keypad_data);
err_free_keymap:
kfree(keypad_data->keymap);
@ -418,6 +421,8 @@ static int omap4_keypad_remove(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);
device_init_wakeup(&pdev->dev, false);
input_unregister_device(keypad_data->input);
iounmap(keypad_data->base);
@ -439,12 +444,46 @@ static const struct of_device_id omap_keypad_dt_match[] = {
MODULE_DEVICE_TABLE(of, omap_keypad_dt_match);
#endif
#ifdef CONFIG_PM_SLEEP
static int omap4_keypad_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
int error;
if (device_may_wakeup(&pdev->dev)) {
error = enable_irq_wake(keypad_data->irq);
if (!error)
keypad_data->irq_wake_enabled = true;
}
return 0;
}
static int omap4_keypad_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
if (device_may_wakeup(&pdev->dev) && keypad_data->irq_wake_enabled) {
disable_irq_wake(keypad_data->irq);
keypad_data->irq_wake_enabled = false;
}
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(omap4_keypad_pm_ops,
omap4_keypad_suspend, omap4_keypad_resume);
static struct platform_driver omap4_keypad_driver = {
.probe = omap4_keypad_probe,
.remove = omap4_keypad_remove,
.driver = {
.name = "omap4-keypad",
.owner = THIS_MODULE,
.pm = &omap4_keypad_pm_ops,
.of_match_table = of_match_ptr(omap_keypad_dt_match),
},
};