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qdev: gpio: Define qdev_pass_gpios()

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Allows a container to take ownership of GPIOs in a contained
device and automatically connect them as GPIOs to the container.

This prepares for deprecation of the SYSBUS IRQ functionality, which
has this feature. We push it up to the device level instead of sysbus
level. There's nothing sysbus specific about passing GPIOs to
containers so its a legitimate device-level generic feature.

Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Peter Crosthwaite 2014-09-25 22:23:42 -07:00 • committed by Paolo Bonzini
parent aef0869e8e
commit 17a96a146c
2 changed files with 29 additions and 0 deletions
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3
include/hw/qdev-core.h
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@ -288,6 +288,9 @@ void qdev_init_gpio_in_named(DeviceState *dev, qemu_irq_handler handler,
void qdev_init_gpio_out_named(DeviceState *dev, qemu_irq *pins,
const char *name, int n);
void qdev_pass_gpios(DeviceState *dev, DeviceState *container,
const char *name);
BusState *qdev_get_parent_bus(DeviceState *dev);
/*** BUS API. ***/