From 011a78c1942ed6441880786d96cb90229e3ab0c9 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 17 Nov 2020 22:33:50 +0100 Subject: gpio: sifive: Set affinity callback to parent This assigns the .irq_set_affinity to the parent callback. I assume the sifive GPIO can be used in systems with SMP. I used the pattern making the hirerarchy tolerant for missing parent as in Marc's earlier patches. Suggested-by: Marc Zyngier Signed-off-by: Linus Walleij Cc: Yash Shah Cc: Wesley W. Terpstra Link: https://lore.kernel.org/r/20201117213351.249668-1-linus.walleij@linaro.org --- drivers/gpio/gpio-sifive.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/gpio/gpio-sifive.c b/drivers/gpio/gpio-sifive.c index d5eb9ca11901..c7d47e42fa2b 100644 --- a/drivers/gpio/gpio-sifive.c +++ b/drivers/gpio/gpio-sifive.c @@ -128,6 +128,16 @@ static void sifive_gpio_irq_eoi(struct irq_data *d) irq_chip_eoi_parent(d); } +static int sifive_gpio_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 struct irq_chip sifive_gpio_irqchip = { .name = "sifive-gpio", .irq_set_type = sifive_gpio_irq_set_type, @@ -136,6 +146,7 @@ static struct irq_chip sifive_gpio_irqchip = { .irq_enable = sifive_gpio_irq_enable, .irq_disable = sifive_gpio_irq_disable, .irq_eoi = sifive_gpio_irq_eoi, + .irq_set_affinity = sifive_gpio_irq_set_affinity, }; static int sifive_gpio_child_to_parent_hwirq(struct gpio_chip *gc, -- cgit v1.2.3