diff options
| author | Michael Hennerich <michael.hennerich@analog.com> | 2008-04-18 00:25:00 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-04-24 13:25:03 -0400 |
| commit | d0478d0ad7a58f36afa03e57afe14955c2943466 (patch) | |
| tree | c742e28a23597abb5cff6dcee660aceffac6a79e /drivers/input/keyboard/bf54x-keys.c | |
| parent | d7b5247bbcfba2bc96d4b3dec9086a4f1a31363b (diff) | |
Input: bf54x-keys - add infrastructure for keypad wakeups
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/keyboard/bf54x-keys.c')
| -rw-r--r-- | drivers/input/keyboard/bf54x-keys.c | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c index d87ac3322a6..54ed8e2e1c0 100644 --- a/drivers/input/keyboard/bf54x-keys.c +++ b/drivers/input/keyboard/bf54x-keys.c @@ -312,6 +312,8 @@ static int __devinit bfin_kpad_probe(struct platform_device *pdev) bfin_write_KPAD_CTL(bfin_read_KPAD_CTL() | KPAD_EN); + device_init_wakeup(&pdev->dev, 1); + printk(KERN_ERR DRV_NAME ": Blackfin BF54x Keypad registered IRQ %d\n", bf54x_kpad->irq); @@ -354,13 +356,40 @@ static int __devexit bfin_kpad_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM +static int bfin_kpad_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev); + + if (device_may_wakeup(&pdev->dev)) + enable_irq_wake(bf54x_kpad->irq); + + return 0; +} + +static int bfin_kpad_resume(struct platform_device *pdev) +{ + struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev); + + if (device_may_wakeup(&pdev->dev)) + disable_irq_wake(bf54x_kpad->irq); + + return 0; +} +#else +# define bfin_kpad_suspend NULL +# define bfin_kpad_resume NULL +#endif + struct platform_driver bfin_kpad_device_driver = { - .probe = bfin_kpad_probe, - .remove = __devexit_p(bfin_kpad_remove), .driver = { .name = DRV_NAME, .owner = THIS_MODULE, - } + }, + .probe = bfin_kpad_probe, + .remove = __devexit_p(bfin_kpad_remove), + .suspend = bfin_kpad_suspend, + .resume = bfin_kpad_resume, }; static int __init bfin_kpad_init(void) |