Messages in this thread Patch in this message | | | From | Bryan Wu <> | Subject | [PATCH 1/1] [INPUT/KEYBOARD] Blackfin BF54x: Add infrastructure for keypad wakeups | Date | Wed, 26 Mar 2008 18:24:43 -0700 |
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From: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> --- drivers/input/keyboard/bf54x-keys.c | 36 ++++++++++++++++++++++++++++++++-- 1 files changed, 33 insertions(+), 3 deletions(-)
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c index 05e3494..2db5d37 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); @@ -354,12 +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) -- 1.5.4.3
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