u-boot.git/test/dm/ofnode.c, branch v2023.01

test: Update tests to use the skip feature

2022-10-31T15:02:44+00:00

Some tests currently return 0 when they want to be skipped. Update them to
return -EAGAIN instead, so they are counted as skipped.

A few tests are in two parts, with the latter part being skipped in
certain situations. Split these into two and use the correct condition for
the second part.

Signed-off-by: Simon Glass

dm: core: Support copying properties with ofnode

2022-09-30T02:43:43+00:00

Add a function to copy properties from one node to another.

Signed-off-by: Simon Glass

dm: core: Allow copying ofnode property data when writing

2022-09-30T02:43:43+00:00

At present ofnode_write_prop() is inconsistent between livetree and
flattree, in that livetree requires the caller to ensure the property
value is stable (e.g. in rodata or allocated) but flattree does not, since
it makes a copy.

This makes the API call a bit painful to use, since the caller must do
different things depending on OF_LIVE.

Add a new 'copy' argument which tells the function to make a copy if
needed. Add some tests to cover this behaviour.

Signed-off-by: Simon Glass

dm: core: Expand ofnode tests

2022-09-30T02:43:43+00:00

The current tests do not cover all functions, nor do they cover the new
multi-tree functionality. Add and update the tests accordingly and update
the 'future work' notes in the documentation.

There is a still more testing needed for the failure cases, since at
present some ofnode functions return a libfdt error code instead of
converting it to an errno.

Signed-off-by: Simon Glass

dm: core: Create a function to get a live tree in a test

2022-09-30T02:43:43+00:00

Move this logic out of the test into separate functions, so we can use it
in other tests.

Signed-off-by: Simon Glass

dm: core: Complete phandle implementation using the other FDT

2022-09-30T02:43:43+00:00

We need to be able to look up phandles in any FDT, not just the control
FDT. Use the 'other' FDT to test this, with a helper function which gets
this as an oftree that can then we used as needed.

Add a few more tests and some comments at the top of the file, to explain
what is going on.

Signed-off-by: Simon Glass

dm: core: Split ofnode_path_root() into two functions

2022-09-30T02:43:43+00:00

This function turns out to be a little confusing since it looks up a path
and also registers the tree. Split it into two, one that gets the root
node and one that looks up a path, so the purpose is clear.

Registering the tree will happen in a function to be added in a later
patch, called oftree_from_fdt().

Signed-off-by: Simon Glass

dm: core: Add a way to look up a phandle in an oftree

2022-09-30T02:43:43+00:00

When we have multiple trees, the ofnode logic needs to be told which one
to use. Create a new function which takes an oftree argument, along with
a helper to obtain the FDT pointer from an oftree.

Signed-off-by: Simon Glass

dm: core: Add ofnode functions to obtain an oftree

2022-09-30T02:43:43+00:00

At present dm_test_ofnode_root() does this manually. Add some inline
functions to handle it, so this code can be centralised.

Add oftree functions to produce a null tree and to check whether a tree
is valid or not.

Signed-off-by: Simon Glass

dm: core: Expand integer-reading tests

2022-09-30T02:43:42+00:00

The current tests do not cover all the behaviour. Add some more.

Tidy up a few inconsistencies between livetree and flattree which come to
light with these tests. Also drop the -ENODATA error since it is never
actually returned.

Signed-off-by: Simon Glass