soc/tegra: pmc: Add comments clarifying wake events (34abf697) · Commits · 戴 / test

drivers/soc/tegra/pmc.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -241,6 +241,11 @@ struct tegra_pmc_soc {
		const char * const *reset_levels;
		unsigned int num_reset_levels;

		/*
		* These describe events that can wake the system from sleep (i.e.
		* LP0 or SC7). Wakeup from other sleep states (such as LP1 or LP2)
		* are dealt with in the LIC.
		*/
		const struct tegra_wake_event *wake_events;
		unsigned int num_wake_events;
		};
		@@ -1906,6 +1911,11 @@ static int tegra_pmc_irq_alloc(struct irq_domain *domain, unsigned int virq,
		}
		}

		/*
		* For interrupts that don't have associated wake events, assign a
		* dummy hardware IRQ number. This is used in the ->irq_set_type()
		* and ->irq_set_wake() callbacks to return early for these IRQs.
		*/
		if (i == soc->num_wake_events)
		err = irq_domain_set_hwirq_and_chip(domain, virq, ULONG_MAX,
		&pmc->irq, pmc);
		@@ -1924,6 +1934,7 @@ static int tegra_pmc_irq_set_wake(struct irq_data *data, unsigned int on)
		unsigned int offset, bit;
		u32 value;

		/* nothing to do if there's no associated wake event */
		if (WARN_ON(data->hwirq == ULONG_MAX))
		return 0;

		@@ -1954,6 +1965,7 @@ static int tegra_pmc_irq_set_type(struct irq_data *data, unsigned int type)
		struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
		u32 value;

		/* nothing to do if there's no associated wake event */
		if (data->hwirq == ULONG_MAX)
		return 0;