Commit 72ccc1f5 authored by Thierry Reding's avatar Thierry Reding
Browse files

soc/tegra: pmc: Add support for simple wake events 



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: default avatarThierry Reding <treding@nvidia.com>
parent 1623566f

drivers/soc/tegra/pmc.c

+19 −0
Original line number Diff line number Diff line
@@ -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])