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Message-Id: <20201006101137.1393797-4-maz@kernel.org>
Date: Tue, 6 Oct 2020 11:11:36 +0100
From: Marc Zyngier <maz@...nel.org>
To: linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Cc: Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Dmitry Osipenko <digetx@...il.com>,
Sowjanya Komatineni <skomatineni@...dia.com>,
Venkat Reddy Talla <vreddytalla@...dia.com>,
Thomas Gleixner <tglx@...utronix.de>, kernel-team@...roid.com
Subject: [PATCH v2 3/4] 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@...nel.org>
---
drivers/soc/tegra/pmc.c | 36 ++++++++++++++++++++++++++++++++----
1 file changed, 32 insertions(+), 4 deletions(-)
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index d332e5d9abac..b39536c68f45 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -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;
--
2.28.0
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