diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2020-11-18 00:33:50 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2020-12-04 11:05:12 +0300 |
| commit | 011a78c1942ed6441880786d96cb90229e3ab0c9 (patch) | |
| tree | 6e2f9060e39272894c0f1552e44d090354b138d0 /drivers/gpio/gpio-sifive.c | |
| parent | 3b4feb21158f873269ff3fbe2fe8d23a88d64b24 (diff) | |
| download | linux-011a78c1942ed6441880786d96cb90229e3ab0c9.tar.xz | |
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 <maz@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Yash Shah <yash.shah@sifive.com>
Cc: Wesley W. Terpstra <wesley@sifive.com>
Link: https://lore.kernel.org/r/20201117213351.249668-1-linus.walleij@linaro.org
Diffstat (limited to 'drivers/gpio/gpio-sifive.c')
| -rw-r--r-- | drivers/gpio/gpio-sifive.c | 11 |
1 files changed, 11 insertions, 0 deletions
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, |