On Tue, 26 Dec 2023 12:21:22 -0700, Mark Hasemeyer wrote: > Add wake capability information to the IRQ resource. Wake capability is > assumed based on conventions provided in the devicetree wakeup-source > binding documentation. An interrupt is considered wake capable if the > following are true: > 1. A wakeup-source property exits in the same device node as the > interrupt. > 2. The IRQ is marked as dedicated by setting its interrupt-name to > "wakeup". > > The wakeup-source documentation states that dedicated interrupts can use > device specific interrupt names and device drivers are still welcome to > use their own naming schemes. This API is provided as a helper if one is > willing to conform to the above conventions. > > The ACPI subsystems already provides similar APIs that allow one to > query the wake capability of an IRQ. This brings closer feature parity > to the devicetree. > > Signed-off-by: Mark Hasemeyer <markhas@xxxxxxxxxxxx> > --- > > Changes in v3: > -Use DEFINE_RES_IRQ_NAMED_FLAGS macro > > Changes in v2: > -Update logic to return true only if wakeup-source property and > "wakeup" interrupt-name are defined > -irq->IRQ, api->API > > drivers/of/irq.c | 39 +++++++++++++++++++++++++++++++++++---- > 1 file changed, 35 insertions(+), 4 deletions(-) > Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
