diff options
| author | Thierry Reding <treding@nvidia.com> | 2022-07-11 18:40:30 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2022-09-15 13:39:34 +0300 |
| commit | 72ccc1f564918c1087a8e37e82422f79d3255a7b (patch) | |
| tree | a18d220068b32e3fac389b31966464b72670dcbd /drivers/soc/tegra | |
| parent | 1623566fc43ecfcbcb5f39aee294262b9b187c9a (diff) | |
| download | linux-72ccc1f564918c1087a8e37e82422f79d3255a7b.tar.xz | |
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: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/soc/tegra')
| -rw-r--r-- | drivers/soc/tegra/pmc.c | 19 |
1 files changed, 19 insertions, 0 deletions
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]) |