gpio: Clarify kerneldoc on gpiochip_set_chained_irqchip()
This doesn't support nested anymore, so drivers shouldn't call it with the handler set to NULL. Cc: Evan Green <evgreen@chromium.org> Cc: Thierry Reding <treding@nvidia.com> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -1704,8 +1704,7 @@ static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip,
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* @parent_irq: the irq number corresponding to the parent IRQ for this
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* chained irqchip
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* @parent_handler: the parent interrupt handler for the accumulated IRQ
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* coming out of the gpiochip. If the interrupt is nested rather than
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* cascaded, pass NULL in this handler argument
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* coming out of the gpiochip.
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*/
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void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
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struct irq_chip *irqchip,
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