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The omapdss_of_find_source_for_first_ep() function locates the source corresponding to the first endpoint of the first port of a device node. We can easily extend it to locate sinks as well by passing the port number as a parameter. This will be useful to find sinks in encoders drivers. Extend the function and rename it to omapdss_of_find_connected_device() to reflect its new extended purpose. Additionally, it is useful to differentiate between failures to return the connected device because no link exists in the device tree for the requested port, or because the connected device as described in the device tree is invalid or not probed yet. Return NULL in the first case and an error code in the second case, and update the callers accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
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| lib | ||
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| mm | ||
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| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.