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gpio: Clarify kerneldoc on gpiochip_set_chained_irqchip()

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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>
This commit is contained in:
Stephen Boyd 2018-10-08 09:32:16 -07:00 committed by Linus Walleij
parent 3c1f6b2d11
commit 40f5ff4f9f
1 changed files with 1 additions and 2 deletions
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drivers/gpio/gpiolib.c
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@ -1704,8 +1704,7 @@ static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip,
* @parent_irq: the irq number corresponding to the parent IRQ for this
* chained irqchip
* @parent_handler: the parent interrupt handler for the accumulated IRQ
* coming out of the gpiochip. If the interrupt is nested rather than
* cascaded, pass NULL in this handler argument
* coming out of the gpiochip.
*/
void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
struct irq_chip *irqchip,