irqreturn_t s5p_hpd_irq_handler(int irq)
{
int ret = IRQ_HANDLED;
unsigned long flags;
spin_lock_irqsave(&hpd_struct.lock, flags);
if (gpio_get_value(S5PV210_GPH1(5))) {
if (irq_event == EVENT_FALLING) {
mod_timer(&hpd_irq_check_timer, jiffies + HZ/20);
}
irq_event = EVENT_RISING;
} else {
irq_event = EVENT_FALLING;
del_timer(&hpd_irq_check_timer);
}
/* check HDMI status */
if (atomic_read(&hdmi_status)) {
/* HDMI on */
ret = irq_hdmi(irq);
HPDIFPRINTK("HDMI HPD interrupt\n");
} else {
/* HDMI off */
ret = irq_eint(irq);
HPDIFPRINTK("EINT HPD interrupt\n");
}
spin_unlock_irqrestore(&hpd_struct.lock, flags);
return ret;
}
/*
* HPD interrupt handler
*
* Handles interrupt requests from HPD hardware.
* Handler changes value of internal variable and notifies waiting thread.
*/
irqreturn_t s5p_hpd_irq_handler(int irq)
{
int ret = IRQ_HANDLED;
spin_lock_irq(&hpd_struct.lock);
/* check HDMI status */
if (atomic_read(&hdmi_status)) {
/* HDMI on */
ret = irq_hdmi(irq);
HPDIFPRINTK("HDMI HPD interrupt\n");
} else {
/* HDMI off */
ret = irq_eint(irq);
HPDIFPRINTK("EINT HPD interrupt\n");
}
spin_unlock_irq(&hpd_struct.lock);
return ret;
}