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| author | Kim Phillips <kim.phillips@freescale.com> | 2014-06-02 19:42:58 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-08 15:31:26 -0700 |
| commit | 3d713e0e382e6fcfb4bba1501645b66c129ad60b (patch) | |
| tree | 9b47c38f09df44537b163ca18eabc8c979aa1f04 /include/linux/platform_device.h | |
| parent | 1cec24c59b4a133fc9c83912996168f511075485 (diff) | |
| download | lwn-3d713e0e382e6fcfb4bba1501645b66c129ad60b.tar.gz lwn-3d713e0e382e6fcfb4bba1501645b66c129ad60b.zip | |
driver core: platform: add device binding path 'driver_override'
Needed by platform device drivers, such as the upcoming
vfio-platform driver, in order to bypass the existing OF, ACPI,
id_table and name string matches, and successfully be able to be
bound to any device, like so:
echo vfio-platform > /sys/bus/platform/devices/fff51000.ethernet/driver_override
echo fff51000.ethernet > /sys/bus/platform/devices/fff51000.ethernet/driver/unbind
echo fff51000.ethernet > /sys/bus/platform/drivers_probe
This mimics "PCI: Introduce new device binding path using
pci_dev.driver_override", which is an interface enhancement
for more deterministic PCI device binding, e.g., when in the
presence of hotplug.
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/platform_device.h')
| -rw-r--r-- | include/linux/platform_device.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 16f6654082dd..153d303af7eb 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -28,6 +28,7 @@ struct platform_device { struct resource *resource; const struct platform_device_id *id_entry; + char *driver_override; /* Driver name to force a match */ /* MFD cell pointer */ struct mfd_cell *mfd_cell; |