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log: Tidy up documentation

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Fix up the documentation which was lost in a merge conflict in the
conversion to RST.

Fixes: 52d3df7fef ("log: Allow LOG_DEBUG to always enable log output")

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2020-10-13 19:55:07 -06:00 committed by Tom Rini
parent ef38b42364
commit 7ad1e0bcf3
1 changed files with 8 additions and 5 deletions
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13
doc/develop/logging.rst
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@ -83,11 +83,8 @@ Sometimes it is useful to turn on logging just in one file. You can use this
#define LOG_DEBUG
to enable building in of all logging statements in a single file. Put it at
the top of the file, before any #includes.
To actually get U-Boot to output this you need to also set the default logging
level - e.g. set CONFIG_LOG_DEFAULT_LEVEL to 7 (LOGL_DEBUG) or more. Otherwise
debug output is suppressed and will not be generated.
the top of the file, before any #includes. This overrides any log-level setting
in U-Boot, including CONFIG_LOG_DEFAULT_LEVEL, but just for that file.
Convenience functions
@ -111,6 +108,12 @@ LOG_CATEGORY, which you can only define once per file, above all #includes, e.g.
#define LOG_CATEGORY LOGC_ALLOC
or
.. code-block:: c
#define LOG_CATEGORY UCLASS_SPI
Remember that all uclasses IDs are log categories too.