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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-11-23 04:52:32 +0300 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-12-03 09:10:31 +0300 |
commit | c1b46cd4df97534c6b942bb30526a2c47f0cb3c8 (patch) | |
tree | a2605659918fa48e8cb38d650c06c9a7669bf0d7 /drivers/input | |
parent | 278b13ce3a89698711c5a67792ba2dba41555433 (diff) | |
download | linux-c1b46cd4df97534c6b942bb30526a2c47f0cb3c8.tar.xz |
Input: omap4-keypad - set up interrupt as wakeup source
Marking main interrupt as wakeup interrupt in probe allows us to drop
custom suspend/resume methods whose only purpose was to configure interrupt
for waking up the system.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
-rw-r--r-- | drivers/input/keyboard/omap4-keypad.c | 43 |
1 files changed, 8 insertions, 35 deletions
diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c index dd16f7b3c7ef..b17ac2a295b9 100644 --- a/drivers/input/keyboard/omap4-keypad.c +++ b/drivers/input/keyboard/omap4-keypad.c @@ -18,6 +18,7 @@ #include <linux/input/matrix_keypad.h> #include <linux/slab.h> #include <linux/pm_runtime.h> +#include <linux/pm_wakeirq.h> /* OMAP4 registers */ #define OMAP4_KBD_REVISION 0x00 @@ -69,7 +70,6 @@ struct omap4_keypad { struct input_dev *input; void __iomem *base; - bool irq_wake_enabled; unsigned int irq; unsigned int rows; @@ -376,6 +376,11 @@ static int omap4_keypad_probe(struct platform_device *pdev) } device_init_wakeup(&pdev->dev, true); + error = dev_pm_set_wake_irq(&pdev->dev, keypad_data->irq); + if (error) + dev_warn(&pdev->dev, + "failed to set up wakeup irq: %d\n", error); + platform_set_drvdata(pdev, keypad_data); return 0; @@ -401,6 +406,8 @@ static int omap4_keypad_remove(struct platform_device *pdev) struct omap4_keypad *keypad_data = platform_get_drvdata(pdev); struct resource *res; + dev_pm_clear_wake_irq(&pdev->dev); + free_irq(keypad_data->irq, keypad_data); pm_runtime_disable(&pdev->dev); @@ -424,45 +431,11 @@ static const struct of_device_id omap_keypad_dt_match[] = { }; MODULE_DEVICE_TABLE(of, omap_keypad_dt_match); -#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", - .pm = &omap4_keypad_pm_ops, .of_match_table = omap_keypad_dt_match, }, }; |