ACPI: Add support for ResourceSource/IRQ domain mapping

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ACPI extended IRQ resources may contain a ResourceSource to specify
an alternate interrupt controller. Introduce acpi_irq_get and use it
to implement ResourceSource/IRQ domain mapping.

The new API is similar to of_irq_get and allows re-initialization
of a platform resource from the ACPI extended IRQ resource, and
provides proper behavior for probe deferral when the domain is not
yet present when called.

Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Agustin Vega-Frias <agustinv@codeaurora.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

...

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Agustin Vega-Frias 2017-02-02 18:23:58 -05:00 • committed by Marc Zyngier

parent fa20b176f6

commit d44fa3d460

5 changed files with 318 additions and 99 deletions

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2

drivers/acpi/Makefile

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98

drivers/acpi/gsi.c

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297

drivers/acpi/irq.c

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10

drivers/base/platform.c

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10

include/linux/acpi.h

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