static int gic_notifier(struct notifier_block *self, unsigned long cmd, void *v)
{
int i;
for (i = 0; i < MAX_GIC_NR; i++) {
switch (cmd) {
case CPU_PM_ENTER:
gic_cpu_save(i);
break;
case CPU_PM_ENTER_FAILED:
case CPU_PM_EXIT:
gic_cpu_restore(i);
break;
case CPU_CLUSTER_PM_ENTER:
gic_dist_save(i);
break;
case CPU_CLUSTER_PM_ENTER_FAILED:
case CPU_CLUSTER_PM_EXIT:
gic_dist_restore(i);
break;
}
}
return NOTIFY_OK;
}
static int gic_runtime_resume(struct device *dev)
{
struct gic_chip_data *gic = dev_get_drvdata(dev);
int ret;
ret = pm_clk_resume(dev);
if (ret)
return ret;
/*
* On the very first resume, the pointer to the driver data
* will be NULL and this is intentional, because we do not
* want to restore the GIC on the very first resume. So if
* the pointer is not valid just return.
*/
if (!gic)
return 0;
gic_dist_restore(gic);
gic_cpu_restore(gic);
return 0;
}