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/Zephyr-latest/scripts/dts/python-devicetree/tests/test-bindings/
Dprops.yaml1 # SPDX-License-Identifier: BSD-3-Clause
8 nonexistent-boolean:
11 existent-boolean:
18 array:
19 type: array
21 uint8-array:
22 type: uint8-array
26 const: "foo"
28 string-array:
29 type: string-array
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/Zephyr-latest/dts/bindings/test/
Dvnd,phandle-holder.yaml2 # SPDX-License-Identifier: Apache-2.0
4 description: Test phandle property container
6 compatible: "vnd,phandle-holder"
11 ph: {type: "phandle"}
13 phs-or: {type: "phandles"}
14 pha-gpios: {type: "phandle-array"}
15 gpios: {type: "phandle-array"}
16 foos: {type: "phandle-array"}
17 foo-names: {type: "string-array"}
18 pwms: {type: "phandle-array"}
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/Zephyr-latest/doc/build/dts/
Dphandles.rst1 .. _dt-phandles:
6 The devicetree concept of a *phandle* is very similar to pointers in
16 The usual way to get a phandle for a devicetree node is from one of its node
19 .. code-block:: DTS
22 lbl_a: node-1 {};
23 lbl_b: lbl_c: node-2 {};
26 You can write the phandle for:
28 - ``/node-1`` as ``&lbl_a``
29 - ``/node-2`` as either ``&lbl_b`` or ``&lbl_c``
39 "Type" in this section refers to one of the type names documented in
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Dbindings-syntax.rst1 .. _dt-bindings-file-syntax:
7 files are YAML files. A :ref:`simple example <dt-bindings-simple-example>` was
17 The top level of a bindings file maps keys to values. The top-level keys look
20 .. code-block:: yaml
24 This is the Vendomatic company's foo-device.
29 See https://yaml-multiline.info/ for formatting help.
35 compatible: "manufacturer,foo-device"
41 child-binding:
50 # SPI memory chip, use 'on-bus:' to say what type of bus, like this.
53 on-bus: spi
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Dintro-syntax-structure.rst1 .. _dt-syntax:
6 As the name indicates, a devicetree is a tree. The human-readable text format
24 .. code-block:: devicetree
26 /dts-v1/;
29 a-node {
30 subnode_nodelabel: a-sub-node {
31 foo = <3>;
36 The ``/dts-v1/;`` line means the file's contents are in version 1 of the DTS
37 syntax, which has replaced a now-obsolete "version 0".
46 #. A node named ``a-node``, which is a child of the root node
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Dapi-usage.rst1 .. _dt-from-c:
8 :ref:`devicetree-intro` and :ref:`dt-bindings`. See :ref:`dt-reference` for
26 .. _dt-node-identifiers:
43 label <dt-node-labels>`. Node labels are often provided by SoC :file:`.dtsi`
44 files to give nodes names that match the SoC datasheet, like ``i2c1``,
50 :zephyr:code-sample:`blinky`, which uses the ``led0`` alias) that need to
72 .. _dt-node-main-ex:
77 .. literalinclude:: main-example.dts
79 :start-after: start-after-here
83 - ``DT_PATH(soc, i2c_40002000)``
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Dmacros.bnf7 ; --------------------------------------------------------------------
8 ; dt-macro: the top level nonterminal for a devicetree macro
10 ; A dt-macro starts with uppercase "DT_", and is one of:
12 ; - a <node-macro>, generated for a particular node
13 ; - some <other-macro>, a catch-all for other types of macros
14 dt-macro = node-macro / other-macro
16 ; --------------------------------------------------------------------
17 ; node-macro: a macro related to a node
20 node-macro = property-macro
22 node-macro =/ pinctrl-macro
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/Zephyr-latest/scripts/dts/python-devicetree/tests/
Dtest.dts4 * SPDX-License-Identifier: BSD-3-Clause
9 /dts-v1/;
16 interrupt-parent-test {
18 compatible = "interrupt-three-cell";
19 #interrupt-cells = <3>;
20 interrupt-controller;
24 interrupt-names = "foo", "bar";
25 interrupt-parent = <&{/interrupt-parent-test/controller}>;
28 interrupts-extended-test {
29 controller-0 {
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Dtest_edtlib.py2 # SPDX-License-Identifier: BSD-3-Clause
23 # test.dts is the main test file. test-bindings/ and test-bindings-2/ has
46 with from_here(): edtlib.EDT("test.dts", ["test-bindings"])
48 enums_hpath = hpath('test-bindings/enums.yaml')
50 … marked as deprecated in 'properties:' in {hpath('test-bindings/deprecated.yaml')} for node /test-…
51 "unit address and first address in 'reg' (0x1) don't match for /reg-zero-size-cells/node",
52 "unit address and first address in 'reg' (0x5) don't match for /reg-ranges/parent/node",
53 …"unit address and first address in 'reg' (0x30000000200000001) don't match for /reg-nested-ranges/…
54 …mpatible 'enums' in binding '{enums_hpath}' has non-tokenizable enum for property 'string-enum': '…
55 …f"compatible 'enums' in binding '{enums_hpath}' has enum for property 'tokenizable-lower-enum' tha…
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Dtest_dtlib.py2 # SPDX-License-Identifier: BSD-3-Clause
23 # - to stop on the first failure with shorter traceback output,
24 # use '-x --tb=native'
25 # - to drop into a debugger on failure, use '--pdb'
26 # - to run a particular test function or functions, use
27 # '-k test_function_pattern_goes_here'
34 fd, path = tempfile.mkstemp(prefix='pytest-', suffix='.dts')
36 os.write(fd, dts.encode('utf-8'))
44 representation is expected[1:-1].
52 expected = expected[1:-1]
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/Zephyr-latest/include/zephyr/devicetree/
Dclocks.h9 * SPDX-License-Identifier: Apache-2.0
20 * @defgroup devicetree-clocks Devicetree Clocks API
26 * @brief Test if a node has a clocks phandle-array property at a given index
28 * This expands to 1 if the given index is valid clocks property phandle-array index.
33 * n1: node-1 {
37 * n2: node-2 {
49 * @param idx index of a clocks property phandle-array whose existence to check
56 * @brief Test if a node has a clock-names array property holds a given name
58 * This expands to 1 if the name is available as clocks-name array property cell.
63 * n1: node-1 {
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/Zephyr-latest/soc/nordic/common/
Dsoc_nrf_common.h3 * SPDX-License-Identifier: Apache-2.0
19 * @brief Get a PSEL value out of a foo-gpios or foo-pin devicetree property
21 * Many Nordic bindings have 'foo-pin' properties to specify a pin
22 * configuration as a PSEL value directly instead of using a 'foo-gpios'
23 * <&gpioX Y flags> style controller phandle + GPIO specifier.
25 * It would be better to use 'foo-gpios' properties instead. This type
28 * To allow for a smooth migration from 'foo-pin' to 'foo-gpios', this
30 * using whichever one of 'foo-gpios' or 'foo-pin' is in the DTS.
34 * - NRF_DT_PSEL_CHECK_*() to check the property configuration at build time
35 * - NRF_DT_GPIOS_TO_PSEL() if you only have a 'foo-gpios'
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/Zephyr-latest/tests/lib/devicetree/api/
Dapp.overlay4 * SPDX-License-Identifier: Apache-2.0
8 * Names in this file should be chosen in a way that won't conflict
9 * with real-world devicetree nodes, to allow these tests to run on
15 test-alias = &test_nodelabel;
24 string = "foo";
28 #address-cells = < 0x1 >;
29 #size-cells = < 0x1 >;
30 interrupt-parent = <&test_intc>;
32 test_cpu_intc: interrupt-controller {
33 compatible = "vnd,cpu-intc";
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/Zephyr-latest/include/zephyr/
Ddevicetree.h2 * SPDX-License-Identifier: Apache-2.0
39 * -----------------
42 * part in DT_N_<path-id>_P_<property-id> macros, or the "prop-suf"
55 * _IDX_<i>_PH: phandle array's phandle by index (or phandle, phandles)
56 * _IDX_<i>_STRING_TOKEN: string array element value as a token
57 * _IDX_<i>_STRING_UPPER_TOKEN: string array element value as a uppercased token
58 * _IDX <i>_STRING_UNQUOTED: string array element value as a sequence of tokens, with no quotes
59 * _IDX_<i>_VAL_<val>: phandle array's specifier value by index
62 * _NAME_<name>_PH: phandle array's phandle by name
63 * _NAME_<name>_VAL_<val>: phandle array's property specifier by name
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/Zephyr-latest/scripts/dts/python-devicetree/src/devicetree/
Ddtlib.py2 # SPDX-License-Identifier: BSD-3-Clause
10 The top-level entry point of the library is the DT class. DT.__init__() takes a
30 "Exception raised for devicetree-related errors"
34 Represents a node in the devicetree ('node-name { ... };').
59 x = "foo", < 0x12345678 >, [ 9A ];
61 This gives x the value b"foo\0\x12\x34\x56\x78\x9A". Numbers in DTS are
62 stored in big-endian format.
78 The path to the node as a string, e.g. "/foo/bar".
113 def name(self) -> str:
117 # Converted to a property to discourage renaming -- that has to be done
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Dedtlib.py3 # SPDX-License-Identifier: BSD-3-Clause
17 but a binding can also come from a 'child-binding:' key in the binding for the
23 The top-level entry points for the library are the EDT and Binding classes.
31 # --------------------
47 # - Consider using @property for APIs that don't need parameters. It makes
51 # - Think about the data type of the thing you're exposing. Exposing something
55 # - Avoid get_*() prefixes on functions. Name them after the thing they return
60 # - Don't expose dtlib stuff directly.
62 # - Add documentation for any new APIs you add.
108 The free-form description of the binding, or None.
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/Zephyr-latest/scripts/dts/
Dgen_dts_cmake.py4 # SPDX-License-Identifier: Apache-2.0
39 DT_PROP(node_id, foo) from devicetree.h.
48 sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'python-devicetree',
69 # Returns parsed command-line arguments
72 parser.add_argument("--cmake-out", required=True,
74 parser.add_argument("--edt-pickle", required=True,
89 # whatever we want as target property names.
93 # names. This lets us store the "real" paths and property names
94 # without conversion to lowercase-and-underscores like we have to
97 # If CMake adds restrictions on target property names later, we
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Dgen_defines.py3 # Copyright (c) 2019 - 2020 Nordic Semiconductor ASA
6 # SPDX-License-Identifier: BSD-3-Clause
11 # Note: Do not access private (_-prefixed) identifiers from edtlib here (and
25 sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'python-devicetree',
46 with open(args.header_out, "w", encoding="utf-8") as header_file:
58 # Check to see if we have duplicate "zephyr,memory-region" property values.
61 if 'zephyr,memory-region' in node.props:
62 region = node.props['zephyr,memory-region'].val
64 sys.exit(f"ERROR: Duplicate 'zephyr,memory-region' ({region}) properties "
74 out_comment("Node's name with unit-address:")
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/Zephyr-latest/scripts/kconfig/
Dkconfigfunctions.py1 # Copyright (c) 2018-2019 Linaro
4 # SPDX-License-Identifier: Apache-2.0
17 "python-devicetree", "src"))
155 should be a node label, like "foo" is here:
157 foo: some-node { ... };
230 property called 'prop' and if that 'prop' is an array type will return
246 if node.props[prop].type != "array":
256 called 'prop' and if that 'prop' is an phandle-array type.
257 Then it will check if that phandle array has a cell matching the given index
258 and then return the value of the cell named 'cell' in this array index.
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