void tegra_irq_to_wake(int irq, int *wak_list, int *wak_size)
{
int i;
*wak_size = 0;
for (i = 0; i < ARRAY_SIZE(tegra_wake_event_irq); i++) {
if (tegra_wake_event_irq[i] == irq) {
pr_info("Wake %d for irq=%d\n", i, irq);
wak_list[*wak_size] = i;
*wak_size = *wak_size + 1;
}
}
if (*wak_size)
goto out;
/* The gpio set_wake code bubbles the set_wake call up to the irq
* set_wake code. This insures that the nested irq set_wake call
* succeeds, even though it doesn't have to do any pm setup for the
* bank.
*
* This is very fragile - there's no locking, so two callers could
* cause issues with this.
*/
if (last_gpio < 0)
goto out;
if (tegra_gpio_get_bank_int_nr(tegra_gpio_wakes[last_gpio]) == irq) {
pr_info("gpio bank wake found: wake %d for irq=%d\n", i, irq);
wak_list[*wak_size] = last_gpio;
*wak_size = 1;
}
out:
return;
}
int tegra_irq_to_wake(int irq)
{
int i;
int wake_irq;
int search_gpio;
static int last_wake = -1;
/* Two level wake irq search for gpio based wakeups -
* 1. check for GPIO irq(based on tegra_wake_event_irq table)
* e.g. for a board, wake7 based on GPIO PU6 and irq==358 done first
* 2. check for gpio bank irq assuming search for GPIO irq
* preceded this search.
* e.g. in this step check for gpio bank irq GPIO6 irq==119
*/
for (i = 0; i < ARRAY_SIZE(tegra_wake_event_irq); i++) {
/* return if step 1 matches */
if (tegra_wake_event_irq[i] == irq) {
pr_info("Wake%d for irq=%d\n", i, irq);
last_wake = i;
return i;
}
/* step 2 below uses saved last_wake from step 1
* in previous call */
search_gpio = irq_to_gpio(
tegra_wake_event_irq[i]);
if (search_gpio < 0)
continue;
wake_irq = tegra_gpio_get_bank_int_nr(search_gpio);
if (wake_irq < 0)
continue;
if ((last_wake == i) &&
(wake_irq == irq)) {
pr_info("gpio bank wake found: wake%d for irq=%d\n",
i, irq);
return i;
}
}
return -EINVAL;
}
