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gpio: Expose the gpiochip_irq_re[ql]res helpers
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
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2 changed files with 8 additions and 2 deletions
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@ -1423,19 +1423,21 @@ static int gpiochip_to_irq(struct gpio_chip *gc, unsigned int offset)
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return irq_create_mapping(domain, offset);
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}
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static int gpiochip_irq_reqres(struct irq_data *d)
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int gpiochip_irq_reqres(struct irq_data *d)
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{
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struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
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return gpiochip_reqres_irq(gc, d->hwirq);
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}
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EXPORT_SYMBOL(gpiochip_irq_reqres);
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static void gpiochip_irq_relres(struct irq_data *d)
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void gpiochip_irq_relres(struct irq_data *d)
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{
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struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
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gpiochip_relres_irq(gc, d->hwirq);
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}
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EXPORT_SYMBOL(gpiochip_irq_relres);
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static void gpiochip_irq_mask(struct irq_data *d)
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{
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@ -579,6 +579,10 @@ void gpiochip_relres_irq(struct gpio_chip *gc, unsigned int offset);
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void gpiochip_disable_irq(struct gpio_chip *gc, unsigned int offset);
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void gpiochip_enable_irq(struct gpio_chip *gc, unsigned int offset);
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/* irq_data versions of the above */
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int gpiochip_irq_reqres(struct irq_data *data);
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void gpiochip_irq_relres(struct irq_data *data);
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/* Line status inquiry for drivers */
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bool gpiochip_line_is_open_drain(struct gpio_chip *gc, unsigned int offset);
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bool gpiochip_line_is_open_source(struct gpio_chip *gc, unsigned int offset);
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