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soc/tegra: pmc: Allow optional irq parent callbacks 

Make the PMC driver resistent to variable depth interrupt hierarchy,
which we are about to introduce.

Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Marc Zyngier 2020-10-04 21:16:24 +01:00
parent 986ec63d44
commit 8681cc33f8
1 changed files with 32 additions and 4 deletions
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36
drivers/soc/tegra/pmc.c
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@ -2184,6 +2184,34 @@ static int tegra186_pmc_irq_set_type(struct irq_data *data, unsigned int type)
return 0;
}
static void tegra_irq_mask_parent(struct irq_data *data)
{
if (data->parent_data)
irq_chip_mask_parent(data);
}
static void tegra_irq_unmask_parent(struct irq_data *data)
{
if (data->parent_data)
irq_chip_unmask_parent(data);
}
static void tegra_irq_eoi_parent(struct irq_data *data)
{
if (data->parent_data)
irq_chip_eoi_parent(data);
}
static int tegra_irq_set_affinity_parent(struct irq_data *data,
const struct cpumask *dest,
bool force)
{
if (data->parent_data)
return irq_chip_set_affinity_parent(data, dest, force);
return -EINVAL;
}
static int tegra_pmc_irq_init(struct tegra_pmc *pmc)
{
struct irq_domain *parent = NULL;
@ -2199,10 +2227,10 @@ static int tegra_pmc_irq_init(struct tegra_pmc *pmc)
return 0;
pmc->irq.name = dev_name(pmc->dev);
pmc->irq.irq_mask = irq_chip_mask_parent;
pmc->irq.irq_unmask = irq_chip_unmask_parent;
pmc->irq.irq_eoi = irq_chip_eoi_parent;
pmc->irq.irq_set_affinity = irq_chip_set_affinity_parent;
pmc->irq.irq_mask = tegra_irq_mask_parent;
pmc->irq.irq_unmask = tegra_irq_unmask_parent;
pmc->irq.irq_eoi = tegra_irq_eoi_parent;
pmc->irq.irq_set_affinity = tegra_irq_set_affinity_parent;
pmc->irq.irq_set_type = pmc->soc->irq_set_type;
pmc->irq.irq_set_wake = pmc->soc->irq_set_wake;