diff mbox series

[2/2,v1] gpio: tegra186: Set affinity callback to parent

Message ID 20201117213351.249668-2-linus.walleij@linaro.org
State Accepted
Commit c4e1f7d92cd609e4929b2b3d8abe5eb21b9823ef
Headers show
Series [1/2,v1] gpio: sifive: Set affinity callback to parent | expand

Commit Message

Linus Walleij Nov. 17, 2020, 9:33 p.m. UTC 
This assigns the .irq_set_affinity to the parent callback.
I assume the Tegra186 is an SMP system so this would be
beneficial.

I used the pattern making the hirerarchy tolerant for missing
parent as in Marc's earlier patch.

Cc: Thierry Reding <treding@nvidia.com>
Cc: Vidya Sagar <vidyas@nvidia.com>
Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

---
ChangeLog RFT->v1:
- Make the affinity setting call return -EINVAL if there
  is no parent.
- Real patch because now we believe in this
---
 drivers/gpio/gpio-tegra186.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

-- 
2.26.2
diff mbox series

Patch

diff --git a/drivers/gpio/gpio-tegra186.c b/drivers/gpio/gpio-tegra186.c
index 9500074b1f1b..286e0b1f46e4 100644
--- a/drivers/gpio/gpio-tegra186.c
+++ b/drivers/gpio/gpio-tegra186.c
@@ -444,6 +444,16 @@  static int tegra186_irq_set_wake(struct irq_data *data, unsigned int on)
 	return 0;
 }
 
+static int tegra186_irq_set_affinity(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 void tegra186_gpio_irq(struct irq_desc *desc)
 {
 	struct tegra_gpio *gpio = irq_desc_get_handler_data(desc);
@@ -690,6 +700,7 @@  static int tegra186_gpio_probe(struct platform_device *pdev)
 	gpio->intc.irq_unmask = tegra186_irq_unmask;
 	gpio->intc.irq_set_type = tegra186_irq_set_type;
 	gpio->intc.irq_set_wake = tegra186_irq_set_wake;
+	gpio->intc.irq_set_affinity = tegra186_irq_set_affinity;
 
 	irq = &gpio->gpio.irq;
 	irq->chip = &gpio->intc;