From: Thierry Reding <treding@xxxxxxxxxx>
Simple wake events are neither mapped to GIC interrupts nor have an
associated GPIO line. They are close to GPIO-backed wake events in that
the IRQ hierarchy processing needs to stop at the PMC level, but since
there is no dedicated GPIO line for them, let's turn them into a
separate type.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
drivers/soc/tegra/pmc.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 0e87fdb90a4a..48286bc59f46 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -296,6 +296,17 @@ struct tegra_wake_event {
} gpio;
};
+#define TEGRA_WAKE_SIMPLE(_name, _id) \
+ { \
+ .name = _name, \
+ .id = _id, \
+ .irq = 0, \
+ .gpio = { \
+ .instance = UINT_MAX, \
+ .pin = UINT_MAX, \
+ }, \
+ }
+
#define TEGRA_WAKE_IRQ(_name, _id, _irq) \
{ \
.name = _name, \
@@ -2239,6 +2250,7 @@ static int tegra_pmc_irq_alloc(struct irq_domain *domain, unsigned int virq,
for (i = 0; i < soc->num_wake_events; i++) {
const struct tegra_wake_event *event = &soc->wake_events[i];
+ /* IRQ and simple wake events */
if (fwspec->param_count == 2) {
struct irq_fwspec spec;
@@ -2251,6 +2263,12 @@ static int tegra_pmc_irq_alloc(struct irq_domain *domain, unsigned int virq,
if (err < 0)
break;
+ /* simple hierarchies stop at the PMC level */
+ if (event->irq == 0) {
+ err = irq_domain_disconnect_hierarchy(domain->parent, virq);
+ break;
+ }
+
spec.fwnode = &pmc->dev->of_node->fwnode;
spec.param_count = 3;
spec.param[0] = GIC_SPI;
@@ -2263,6 +2281,7 @@ static int tegra_pmc_irq_alloc(struct irq_domain *domain, unsigned int virq,
break;
}
+ /* GPIO wake events */
if (fwspec->param_count == 3) {
if (event->gpio.instance != fwspec->param[0] ||
event->gpio.pin != fwspec->param[1])
--
2.36.1
