Commit ef9ae0c5 authored by Daniel Mack's avatar Daniel Mack Committed by Greg Kroah-Hartman
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uio: Documentation: Add information on using uio_pdrv_genirq with DT



Add a paragraph to describe the use of the "of_id" module parameter,
along with the new DT property.

Signed-off-by: default avatarDaniel Mack <daniel@zonque.org>
Link: https://lore.kernel.org/r/20190815212807.25058-2-daniel@zonque.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b0297622
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Original line number Diff line number Diff line
@@ -408,6 +408,13 @@ handler code. You also do not need to know anything about the chip's
internal registers to create the kernel part of the driver. All you need
to know is the irq number of the pin the chip is connected to.

When used in a device-tree enabled system, the driver needs to be
probed with the ``"of_id"`` module parameter set to the ``"compatible"``
string of the node the driver is supposed to handle. By default, the
node's name (without the unit address) is exposed as name for the
UIO device in userspace. To set a custom name, a property named
``"linux,uio-name"`` may be specified in the DT node.

Using uio_dmem_genirq for platform devices
------------------------------------------