Commit graph

163 commits

Author SHA1 Message Date
Christophe Dufaza
70eaa61cb0 edtlib: test "last modified" semantic for included property specs
Make sure the property specs answered by the Binding.prop2specs API
do not all claim (PropertySpec.path) they were last modified
by the top-level binding.

Signed-off-by: Christophe Dufaza <chris@openmarl.org>
2024-04-22 06:50:55 -07:00
Javan lacerda
dbfc1aaec6 scripts: dts: update pyyaml version
The currently used PyYaml version has some vulnerabilies as
described on the pull request description. It updates to
version 6.0, removing these supply chain vulnerabily.
The OSSF Scorecard was the tool used for discovering
 these vulnerabilties.

Signed-off-by: Javan lacerda <javanlacerda@google.com>
2024-03-29 09:03:34 -04:00
Fabio Baltieri
403640b75e edtlib: link child nodes to parent for nodes with child-bindings
The current EDT graph logic only use properties directly under a
specific node to add dependencies. For nodes properties in
child-bindings, this means that the child phandles are only linked by
the child node itself, which does have an ordinal but no corresponding
"sturct device" in the code, causing those dependencies to be silently
ignored by gen_handles.py.

Fix that by adding the recursive logic to visit child bindings when
present, which causes all child node property handles to be linked to
the parent node.

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
2023-10-25 18:39:31 -07:00
Gerard Marull-Paretas
7772cec6bd edtlib: always insert root node to the graph
When we have an empty Devicetree, ie,

```
/dts-v1/;

/ {

};
```

The node's dep_ordinal is never initialized because the node graph is
empty. This ends up with invalid ordinal tokens (-1) in
devicetree_generated.h which in turn produce some cryptic compiler
errors, see e.g.

```
error: pasting "dts_ord_" and "-" does not give a valid preprocessing
token
   95 | #define Z_DEVICE_DT_DEV_ID(node_id) _CONCAT(dts_ord_,
      DT_DEP_ORD(node_id))

...

include/zephyr/devicetree.h:2498:41:
note: in expansion of macro 'DT_FOREACH_OKAY_HELPER'
 2498 | #define DT_FOREACH_STATUS_OKAY_NODE(fn)
      DT_FOREACH_OKAY_HELPER(fn)
            |
	    ^~~~~~~~~~~~~~~~~~~~~~
include/zephyr/device.h:1022:1:
note: in expansion of macro 'DT_FOREACH_STATUS_OKAY_NODE'
     1022 |
	  DT_FOREACH_STATUS_OKAY_NODE(Z_MAYBE_DEVICE_DECLARE_INTERNAL)

```

(devicetree_generated.h)

```
...
 #define DT_N_ORD -1
 #define DT_N_ORD_STR_SORTABLE 000-1
...
```

This patch makes sure root node is always inserted (without any target)
so that it gets initialized later.

Discovered as part of
https://github.com/zephyrproject-rtos/zephyr/pull/63696

Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
2023-10-11 18:28:01 +03:00
Gerard Marull-Paretas
73b803ab4b edtlib: pinctrl properties are required in the binding
Consumers need to include `pinctrl-device.yaml` where this is defined.

Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
2023-09-27 13:58:28 +02:00
Grant Ramsay
5443703dc9 edtlib: Exclude PCI devices from some inapplicable checks
PCI devices are have some differences to regular nodes:
* node name specifies device/function e.g. "pcie@1,0"
* register address has a different meaning
* zero-sized register is allowed

This improves alignment with Linux DT for PCI devices

Signed-off-by: Grant Ramsay <gramsay@enphaseenergy.com>
2023-08-18 10:13:12 +02:00
Christophe Dufaza
ad48c51651 devicetree: edtlib: prefixes which are not vendors are NOT vendors
In Linux, checkpatch.pl relies on the vendor-prefixes.yaml file
to validate manufacturers in compatible strings.
In addition to the vendors defined in vendor-prefixes.txt,
the YAML file includes expressions for "prefixes which are not vendors":
these expressions do NOT define special manufacturers that may appear
in compatible strings, and are never involved as such in DTS files.
We can rather see them as bulk-definitions of JSON/YAML properties
suitable for the dt-schema tools.

OTHO, in Zephyr, checkpatch.pl relies on the vendor-prefixes.txt file,
which does not include these additional prefixes, but edtlib.EDT adds
them as hard-coded special values.

This is confusing, if not incorrect:

- the fact that edtlib.EDT (and thus its client code in the
zephyr/scripts directory) actually allows these vendors
in compatible strings is buried in the source code
- checkpatch.pl (with vendor-prefixes.txt) in Zephyr behaves neither like
checkpatch.pl (with vendor-prefixes.yaml) in Linux, nor like edtlib.EDT
(with _VENDOR_PREFIX_ALLOWED)
- Zephyr should not treat these "prefixes which are not vendors" as
valid manufacturers in compatible strings to begin with

Signed-off-by: Christophe Dufaza <chris@openmarl.org>
2023-08-16 14:50:26 +02:00
Grzegorz Swiderski
dcd8d60119 scripts: dts: Support DT_NODE_HAS_PROP(node_id, ranges)
This is a one-line fix for edtlib, which lets gen_defines.py indicate
whether the `ranges` property exists within a given node.

Although address translation through ranges is typically automatic,
users can choose to manually inspect ranges using DT_FOREACH_RANGE(),
DT_NUM_RANGES(), and other DT_RANGES_* macros. These can be used to
implement manual translation at runtime, which is currently done for
PCIe controllers.

The only thing missing is being able to check if a node contains an
empty `ranges;`, which signifies a 1:1 translation to the parent bus.
Checking DT_NUM_RANGES() is insufficient, because it returns zero
whether or not `ranges;` is present.

It should be possible to use DT_NODE_HAS_PROP(), but it was not working,
because edtlib ignores properties which are undeclared in bindings and
don't have a default type. Add a missing PropertySpec for `ranges` with
"compound" type; it can't be "array" because it can be empty-valued.

Signed-off-by: Grzegorz Swiderski <grzegorz.swiderski@nordicsemi.no>
2023-08-02 09:56:01 -07:00
Martí Bolívar
5847890a18 edtlib: finish adding type annotations
This concludes the type annotations for the public API for the module,
along with the relevant internal state. It's not worth type annotating
the internal backwards compatibility shim for !include.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
3318380eaf edtlib: type annotate EDT
Incremental progress towards type annotating the entire module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
d89f974760 edtlib: type annotate Node
This requires adding a private constructor so that mypy
can tell what all the final instance state is going to be.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
cae8b6567d edtlib: make PinCtrl a type-annotated dataclass
Converting this to a dataclass will make it easier to type annotate.
Adding type annotations is incremental progress towards type checking
the entire module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
83b6db2ec1 edtlib: make ControllerAndData a type-annotated dataclass
Converting this to a dataclass will make it easier to type annotate.
Adding type annotations is incremental progress towards type checking
the entire module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
3a43e1b643 edtlib: make Range a type-annotated dataclass
Converting this to a dataclass will make it easier to type annotate.
Adding type annotations is incremental progress towards type checking
the entire module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
b07f3ddd9f edtlib: clean up Range docstring
Fix grammar issues and typos.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
49c0d72234 edtlib: make Register a type-annotated dataclass
Converting this to a dataclass will make it easier to type annotate.
Adding type annotations is incremental progress towards type checking
the entire module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
4415a29af2 edtlib: make Property a type-annotated dataclass
Converting this to a dataclass will make it easier to type annotate.
Adding type annotations is incremental progress towards type checking
the entire module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
835a57ccfa edtlib: type annotate PropertySpec
Incremental progress towards type annotating the module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
1b6921965a edtlib: type annotate Binding
Incremental progress towards type annotating the whole module.
Annotate helper procedures used by the class as well.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
3d75f17d5e edtlib: improve error handling paths
Miscellaneous fixes discovered by inspection while type annotating the
module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
51d79808e4 edtlib: move Node
This is just moving the class definition higher in the file. I am
reordering the classes to make it possible to type annotate the module
in a more readable way.

Git might make the diff look bigger than it really is.
To verify this is just moving code, use 'git diff --minimal'.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
ba4b8a406e edtlib: move PinCtrl
This is just moving the class definition higher in the file
to make it easier to type annotate the module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
a5d82337b7 edtlib: move ControllerAndData
This is just moving the class definition higher in the file
to make it easier to type annotate the module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
ea4db57d90 edtlib: move Range
This is just moving the class definition higher in the file
to make it easier to type annotate the module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
da31368eed edtlib: move Register
This is just moving the class definition higher in the file
to make it easier to type annotate the module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
20731a3cab edtlib: move Property
This is just moving the class definition higher in the file
to make it easier to type annotate the module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
ff8c63c03b edtlib: move PropertySpec
This is just moving the class definition higher in the file
to make it easier to type annotate the module.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
bef3970573 edtlib: move Binding
This is just moving the class definition higher in the file. I am
reordering the classes to make it possible to type annotate the module
in a more readable way.

Git might make the diff look bigger than it really is.
To verify this is just moving code, use 'git diff --minimal'.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
cf9cfc31bd edtlib: implement copy.deepcopy() for EDT
Just like we did for dtlib in 15e3e317f7
("dtlib: implement copy.deepcopy() for DT"), except this time it's for
EDT. This also can do no harm and will be useful for implementing
system devicetree support.

No functional changes expected under the assumption that no users are
relying on us having stashed the exact bindings_dirs list passed to
the constructor. This patch switches to making a defensive copy, which
is safer and makes implementing this a little cleaner.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
f4b487aea2 edtlib: refactor some internals
Move all the initial settings of instance attributes to the
constructor, so we can keep track of them all more easily.

No functional changes expected.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
867dd1c84c devicetree: use c89 comments in test file
This is still the preferred style in a zephyr DTS.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
dcf1fc0592 dtlib: fix docstring
The reference is to an incorrect method.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-04-17 08:58:14 -07:00
Martí Bolívar
513e03ad68 edtlib: extract _slice() code to new helper module
This will make it more convenient to use it from multiple different
places, which we will have a need for in the future.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-02-27 17:44:45 +01:00
Martí Bolívar
c0a024253f edtlib: fix typo
Trivial fix.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-02-27 17:44:45 +01:00
Martí Bolívar
3bb1aaebd5 dtlib: fix pretty-printing in pdb
We need to have an _include_path attribute to pretty-print
this object from within pdb, for some reason. Add it.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-02-27 17:44:45 +01:00
Martí Bolívar
2d86e1b05d dtlib: add missing type annotations
This allows mypy to check the internal variable type annotations
within the function.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-02-27 17:44:45 +01:00
Martí Bolívar
78fca3c19c dtlib: fix comment header
The following section of code has nothing public inside.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-02-27 17:44:45 +01:00
Martí Bolívar
6ac19439b2 dtlib: remove dead code
There's no need for _parse_node() to return the Node instance that is
its sole argument. The only user of the return value is a dead store.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-02-27 17:44:45 +01:00
Martí Bolívar
5272e7f681 dtlib: add DT.move_node()
This helper lets you place a node (really the entire subtree rooted at
that node) elsewhere in the devicetree. This will be useful when
adding system devicetree support, when we'll want to be able to, for
example, move the CPU cluster node selected by the current execution
domain to /cpus.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-02-27 17:44:45 +01:00
Martí Bolívar
e479d3f7c6 dtlib: use new helper in test cases
Using dtlib_raises() throughout the test cases saves some typing.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-02-27 17:44:45 +01:00
Martí Bolívar
2063ddbc93 dtlib: add new test case helper
Introduce a context manager that will save some typing
when dealing with expected exceptions.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-02-27 17:44:45 +01:00
Martí Bolívar
faa7e530c2 dtlib: clean up a documentation string
The standard way we write this in the library is 'documentation
string', not 'docstring'.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2023-02-27 17:44:45 +01:00
Henrik Brix Andersen
28819152cb scripts: dts: add special tooling for handling GPIO hog nodes
GPIO hog nodes contain a "gpios" property, but unlike other "*-gpios"
properties, these are not phandle-arrays as they only carry the data part
(e.g. pin, flags) but lack the phandles to the (parent) GPIO controller.

Add special devicetree tooling to handle the "gpios" property of GPIO hog
nodes and generate special devicetree helper macros as if they were phandle
arrays.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2023-01-27 14:38:52 -08:00
Chris Duf
92897ef011 python-devicetree: bump version to 0.0.2
Inconsistency between python-devicetree version numbers
may be confusing:
- the last version at PyPI is 0.0.2
- zephyr-rtos/python-devicetree/setup.py sets the version
  to 0.0.2 (this is probably the setup file used when uploading
  to PyPI)
- zephyr-rtos/zephyr/scripts/dts/python-devicetree/setup.py sets
  the version to 0.0.1

This may suggest that the mirror repository, and PyPI, are more
up-to-date than zephyr-rtos/zephyr/scripts/dts/python-devicetree.

Repositories being otherwise mostly identical (1), also bumping
the python-devicetree's version here seems a sane option.

(1) Ignoring the doc directory (only at zephyr-rtos/python-devicetree).

Signed-off-by: Chris Duf <chris@openmarl.org>
2023-01-16 11:19:54 +00:00
Chris Duf
436616c66b python-devicetree: unpin types-PyYAML version
This is essentially a revert of PR #46311 "python-devicetree: CI hotfix",
assuming the original issue has been resolved, either upstream in
types-PyYAML or in Zephyr itself.

Tested with types-PyYAML 6.0.12.2 (current version at PyPI):

  $ python -m mypy --config-file=tox.ini --package=devicetree
  dtlib.py:962: note: By default the bodies of untyped functions [...]
  dtlib.py:964: note: By default the bodies of untyped functions [...]
  dtlib.py:965: note: By default the bodies of untyped functions [...]
  dtlib.py:967: note: By default the bodies of untyped functions [...]
  Success: no issues found in 4 source files

The "notes" above are harmless (use of type hinting to define local
variables while mypy won't "check the bodies of untyped functions").

References:
- python-devicetree tox run fails (issue #46286)
- python-devicetree: CI hotfix (PR #46311)
- python-devicetree: CI hotfix (commit f6a6843)

Signed-off-by: Chris Duf <chris@openmarl.org>
2023-01-16 11:19:54 +00:00
Fabio Baltieri
0daa3a78a9 yamllint: indentation: fix files in scripts/
Fix the YAML files indentation for files in scripts/.

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
2023-01-04 14:23:53 +01:00
Gerard Marull-Paretas
537133fe44 devicetree: edtlib: tests: add coverage for child includes
Add test coverage for the child-binding include feature. It includes
verification of included properties as well as usage of allow/blocklist.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-11-17 06:57:46 -06:00
Martí Bolívar
a97295b6a2 edtlib: re-appease the linter
At some point in the past, we had to suppress a couple of false
positive pylint warnings to pass CI. But now the linter seems to have
figured out its original mistake and is complaining about a useless
supression. Sigh. Play along.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2022-11-07 19:00:31 +01:00
Martí Bolívar
15e3e317f7 dtlib: implement copy.deepcopy() for DT
The standard library copy module allows you to implement shallow and
deep copies of objects. See its documentation for more details on
these terms.

Implementing copy.deepcopy() support for DT objects will allow us to
"clone" devicetree objects in other classes. This in turn will enable
new features, such as native system devicetree support, within the
python-devicetree.

It is also a pure feature extension which can't harm anything and is
therefore safe to merge now, even if system devicetree is never
adopted in Zephyr.

Note that we are making use of the move from OrderedDict to regular
dict to make this implementation more convenient.

See https://github.com/devicetree-org/lopper/ for more information on
system devicetree. We want to add system devicetree support to dtlib
because it seems to be a useful way to model modern, heterogeneous
SoCs than traditional devicetree, which can really only model a single
CPU "cluster" within such an SoC.

In order to create 'regular' devicetrees from a system devicetree, we
will want a programming interface that does the following:

   1. parse the system devicetree
   2. receive the desired transformations on it
   3. perform the desired transformations to make
      a 'regular' devicetree

Step 3 can be done as a destructive modification on an object-oriented
representation of a system devicetree, and that's the approach we will
take in python-devicetree. It will therefore be convenient to have an
efficient deepcopy implementation to be able to preserve the original
system devicetree and the derived regular devicetree in memory in the
same python process.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2022-11-07 19:00:31 +01:00
Martí Bolívar
3c976cc3b6 devicetree: stop using OrderedDict
Regular dicts are insertion-ordered since CPython 3.6 and Python 3.7.
Zephyr now requires Python 3.8, so it should be OK to replace
OrderedDict with regular dict now. This results in less typing and
more readable object representations.

A nitpicker could argue that this is a functional change, since if a
user is doing 'assert isinstance(node.props, OrderedDict)', that will
fail now, but:

 1. nobody is doing something like that in the zephyr tree
 2. that would be a silly thing to do
 3. we don't currently make any API stability guarantees
    for this module right now anyway

so it should be fine.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2022-11-07 19:00:31 +01:00