diff options
Diffstat (limited to 'drivers/input/keyboard/tosakbd.c')
| -rw-r--r-- | drivers/input/keyboard/tosakbd.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/input/keyboard/tosakbd.c b/drivers/input/keyboard/tosakbd.c index 3884d1e..94e444b 100644 --- a/drivers/input/keyboard/tosakbd.c +++ b/drivers/input/keyboard/tosakbd.c @@ -52,7 +52,7 @@ KEY_X, KEY_F, KEY_SPACE, KEY_APOSTROPHE, TOSA_KEY_MAIL, KEY_LEFT, KEY_DOWN, KEY_ struct tosakbd { unsigned int keycode[ARRAY_SIZE(tosakbd_keycode)]; struct input_dev *input; - + int suspended; spinlock_t lock; /* protect kbd scanning */ struct timer_list timer; }; @@ -133,6 +133,9 @@ static void tosakbd_scankeyboard(struct platform_device *dev) spin_lock_irqsave(&tosakbd->lock, flags); + if (tosakbd->suspended) + goto out; + for (col = 0; col < TOSA_KEY_STROBE_NUM; col++) { /* * Discharge the output driver capacitatance @@ -174,6 +177,7 @@ static void tosakbd_scankeyboard(struct platform_device *dev) if (num_pressed) mod_timer(&tosakbd->timer, jiffies + SCAN_INTERVAL); + out: spin_unlock_irqrestore(&tosakbd->lock, flags); } @@ -200,6 +204,7 @@ static irqreturn_t tosakbd_interrupt(int irq, void *__dev) static void tosakbd_timer_callback(unsigned long __dev) { struct platform_device *dev = (struct platform_device *)__dev; + tosakbd_scankeyboard(dev); } @@ -207,6 +212,13 @@ static void tosakbd_timer_callback(unsigned long __dev) static int tosakbd_suspend(struct platform_device *dev, pm_message_t state) { struct tosakbd *tosakbd = platform_get_drvdata(dev); + unsigned long flags; + + spin_lock_irqsave(&tosakbd->lock, flags); + PGSR1 = (PGSR1 & ~TOSA_GPIO_LOW_STROBE_BIT); + PGSR2 = (PGSR2 & ~TOSA_GPIO_HIGH_STROBE_BIT); + tosakbd->suspended = 1; + spin_unlock_irqrestore(&tosakbd->lock, flags); del_timer_sync(&tosakbd->timer); @@ -215,6 +227,9 @@ static int tosakbd_suspend(struct platform_device *dev, pm_message_t state) static int tosakbd_resume(struct platform_device *dev) { + struct tosakbd *tosakbd = platform_get_drvdata(dev); + + tosakbd->suspended = 0; tosakbd_scankeyboard(dev); return 0; @@ -365,8 +380,8 @@ fail: return error; } -static int __devexit tosakbd_remove(struct platform_device *dev) { - +static int __devexit tosakbd_remove(struct platform_device *dev) +{ int i; struct tosakbd *tosakbd = platform_get_drvdata(dev); @@ -394,6 +409,7 @@ static struct platform_driver tosakbd_driver = { .resume = tosakbd_resume, .driver = { .name = "tosa-keyboard", + .owner = THIS_MODULE, }, }; @@ -413,3 +429,4 @@ module_exit(tosakbd_exit); MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>"); MODULE_DESCRIPTION("Tosa Keyboard Driver"); MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:tosa-keyboard"); |