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| author | Agustin Vega-Frias <[email protected]> | 2017-02-02 23:23:58 +0000 |
|---|---|---|
| committer | Marc Zyngier <[email protected]> | 2017-02-03 15:03:48 +0000 |
| commit | d44fa3d46079dc095c1346fa6e5bc96dca1ead41 (patch) | |
| tree | 6c2880d745b366a4a024e3048e6727873a43b773 /drivers/base/platform.c | |
| parent | ACPI: Generic GSI: Do not attempt to map non-GSI IRQs during bus scan (diff) | |
| download | kernel-d44fa3d46079dc095c1346fa6e5bc96dca1ead41.tar.gz kernel-d44fa3d46079dc095c1346fa6e5bc96dca1ead41.zip | |
ACPI: Add support for ResourceSource/IRQ domain mapping
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 <[email protected]>
Acked-by: Lorenzo Pieralisi <[email protected]>
Reviewed-by: Hanjun Guo <[email protected]>
Tested-by: Hanjun Guo <[email protected]>
Signed-off-by: Agustin Vega-Frias <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Diffstat (limited to 'drivers/base/platform.c')
| -rw-r--r-- | drivers/base/platform.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index c4af00385502..647e4761dbf3 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -102,6 +102,16 @@ int platform_get_irq(struct platform_device *dev, unsigned int num) } r = platform_get_resource(dev, IORESOURCE_IRQ, num); + if (has_acpi_companion(&dev->dev)) { + if (r && r->flags & IORESOURCE_DISABLED) { + int ret; + + ret = acpi_irq_get(ACPI_HANDLE(&dev->dev), num, r); + if (ret) + return ret; + } + } + /* * The resources may pass trigger flags to the irqs that need * to be set up. It so happens that the trigger flags for |