https://github.com/torvalds/linux
Revision 48057ed1840fde9239b1e000bea1a0a1f07c5e99 authored by Linus Walleij on 20 August 2019, 08:05:27 UTC, committed by Linus Walleij on 23 August 2019, 09:00:43 UTC
The new API for registering a gpio_irq_chip along with a
gpio_chip has a different semantic ordering than the old
API which added the irqchip explicitly after registering
the gpio_chip.

Move the calls to add the gpio_irq_chip *last* in the
function, so that the different hooks setting up OF and
ACPI and machine gpio_chips are called *before* we try
to register the interrupts, preserving the elder semantic
order.

This cropped up in the PL061 driver which used to work
fine with no special ACPI quirks, but started to misbehave
using the new API.

Fixes: e0d897289813 ("gpio: Implement tighter IRQ chip integration")
Cc: Thierry Reding <treding@nvidia.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Reported-by: Wei Xu <xuwei5@hisilicon.com>
Tested-by: Wei Xu <xuwei5@hisilicon.com>
Reported-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190820080527.11796-1-linus.walleij@linaro.org
1 parent df451f8
History
Tip revision: 48057ed1840fde9239b1e000bea1a0a1f07c5e99 authored by Linus Walleij on 20 August 2019, 08:05:27 UTC
gpio: Fix irqchip initialization order
Tip revision: 48057ed
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