提交 7fd87b3f 编写于 作者: F Francesco VIRLINZI 提交者: Paul Mundt

sh: intc: Added resume from hibernation support to the intc

It's required for all modules loaded in the previous runtime
session because not initilized duing the kernel start-up.
Signed-off-by: NFrancesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
上级 0221c81b
......@@ -44,6 +44,7 @@ struct intc_handle_int {
struct intc_desc_int {
struct list_head list;
struct sys_device sysdev;
pm_message_t state;
unsigned long *reg;
#ifdef CONFIG_SMP
unsigned long *smp;
......@@ -786,18 +787,44 @@ static int intc_suspend(struct sys_device *dev, pm_message_t state)
/* get intc controller associated with this sysdev */
d = container_of(dev, struct intc_desc_int, sysdev);
/* enable wakeup irqs belonging to this intc controller */
for_each_irq_desc(irq, desc) {
if ((desc->status & IRQ_WAKEUP) && (desc->chip == &d->chip))
intc_enable(irq);
switch (state.event) {
case PM_EVENT_ON:
if (d->state.event != PM_EVENT_FREEZE)
break;
for_each_irq_desc(irq, desc) {
if (desc->chip != &d->chip)
continue;
if (desc->status & IRQ_DISABLED)
intc_disable(irq);
else
intc_enable(irq);
}
break;
case PM_EVENT_FREEZE:
/* nothing has to be done */
break;
case PM_EVENT_SUSPEND:
/* enable wakeup irqs belonging to this intc controller */
for_each_irq_desc(irq, desc) {
if ((desc->status & IRQ_WAKEUP) && (desc->chip == &d->chip))
intc_enable(irq);
}
break;
}
d->state = state;
return 0;
}
static int intc_resume(struct sys_device *dev)
{
return intc_suspend(dev, PMSG_ON);
}
static struct sysdev_class intc_sysdev_class = {
.name = "intc",
.suspend = intc_suspend,
.resume = intc_resume,
};
/* register this intc as sysdev to allow suspend/resume */
......
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