5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Marc Zyngier <maz@xxxxxxxxxx> [ Upstream commit 704f08753b6dcd0e08c1953af0b2c7f3fac87111 ] The GPIO subsystem has a couple of internal helpers to manage resources on behalf of the irqchip. Expose them so that GPIO drivers can use them directly. Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx> Reviewed-by: Bartosz Golaszewski <brgl@xxxxxxxx> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx> Link: https://lore.kernel.org/r/20220419141846.598305-3-maz@xxxxxxxxxx Stable-dep-of: dc3115e6c5d9 ("hid: cp2112: Fix IRQ shutdown stopping polling for all IRQs on chip") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/gpio/gpiolib.c | 6 ++++-- include/linux/gpio/driver.h | 4 ++++ 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 8a6510d0fe5fc..69ef51a05709a 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1439,19 +1439,21 @@ static int gpiochip_to_irq(struct gpio_chip *gc, unsigned offset) return irq_create_mapping(domain, offset); } -static int gpiochip_irq_reqres(struct irq_data *d) +int gpiochip_irq_reqres(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); return gpiochip_reqres_irq(gc, d->hwirq); } +EXPORT_SYMBOL(gpiochip_irq_reqres); -static void gpiochip_irq_relres(struct irq_data *d) +void gpiochip_irq_relres(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); gpiochip_relres_irq(gc, d->hwirq); } +EXPORT_SYMBOL(gpiochip_irq_relres); static void gpiochip_irq_mask(struct irq_data *d) { diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 64c93a36a3a92..38df53b541d53 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -591,6 +591,10 @@ void gpiochip_relres_irq(struct gpio_chip *gc, unsigned int offset); void gpiochip_disable_irq(struct gpio_chip *gc, unsigned int offset); void gpiochip_enable_irq(struct gpio_chip *gc, unsigned int offset); +/* irq_data versions of the above */ +int gpiochip_irq_reqres(struct irq_data *data); +void gpiochip_irq_relres(struct irq_data *data); + /* Line status inquiry for drivers */ bool gpiochip_line_is_open_drain(struct gpio_chip *gc, unsigned int offset); bool gpiochip_line_is_open_source(struct gpio_chip *gc, unsigned int offset); -- 2.42.0
