[PATCH] gpio/rockchip: lock GPIOs used as interrupts
From: John Keeping <hidden>
Date: 2021-12-02 15:51:25
Also in:
linux-gpio, linux-rockchip, lkml
Subsystem:
arm/rockchip soc support, gpio subsystem, the rest · Maintainers:
Heiko Stuebner, Linus Walleij, Bartosz Golaszewski, Linus Torvalds
Use the standard gpiochip request/release resource functions so that any GPIOs used as interrupts are properly locked. This allows libgpiod to correctly show these GPIOs as in-use. Signed-off-by: John Keeping <redacted> --- drivers/gpio/gpio-rockchip.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index ce63cbd14d69a..c1b8e5dbbcc47 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c@@ -465,6 +465,22 @@ static int rockchip_irq_set_type(struct irq_data *d, unsigned int type) return ret; } +static int rockchip_irq_reqres(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct rockchip_pin_bank *bank = gc->private; + + return gpiochip_reqres_irq(&bank->gpio_chip, d->hwirq); +} + +static void rockchip_irq_relres(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct rockchip_pin_bank *bank = gc->private; + + gpiochip_relres_irq(&bank->gpio_chip, d->hwirq); +} + static void rockchip_irq_suspend(struct irq_data *d) { struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
@@ -536,6 +552,8 @@ static int rockchip_interrupts_register(struct rockchip_pin_bank *bank) gc->chip_types[0].chip.irq_suspend = rockchip_irq_suspend; gc->chip_types[0].chip.irq_resume = rockchip_irq_resume; gc->chip_types[0].chip.irq_set_type = rockchip_irq_set_type; + gc->chip_types[0].chip.irq_request_resources = rockchip_irq_reqres; + gc->chip_types[0].chip.irq_release_resources = rockchip_irq_relres; gc->wake_enabled = IRQ_MSK(bank->nr_pins); /*
--
2.34.1
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