5.15-stable review patch. If anyone has any objections, please let me know.
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From: Marc Zyngier maz@kernel.org
[ 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@gmail.com Reviewed-by: Bartosz Golaszewski brgl@bgdev.pl Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/20220419141846.598305-3-maz@kernel.org Stable-dep-of: 9860370c2172 ("gpio: xilinx: Convert gpio_lock to raw spinlock") Signed-off-by: Sasha Levin sashal@kernel.org --- 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 631eaf2e418a7..d1e553529b354 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1432,19 +1432,21 @@ static int gpiochip_to_irq(struct gpio_chip *gc, unsigned int 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 65df2ce96f0b1..b241fc23ff3a2 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -595,6 +595,10 @@ 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);