Commit Graph

27 Commits

Author SHA1 Message Date
TLIG Dhaou 53f2ccf2a2 dts: bindings: serial: Add common bindings for STM32 serial driver.
There are 3 bindings for STM32 serial driver:
st,stm32-uart.yaml
st,stm32-usart.yaml
st,stm32-lpuart.yaml
Add a common st,stm32-uart-base.yaml that would be included by these
3 bindings an would group common properties.


Signed-off-by: TLIG Dhaou <dhaou.tlig-ext@st.com>
2022-08-23 07:11:08 -05:00
Jonathan Hahn 05cc2e1ac3 drivers: serial: add pin inversion to stm32 u(s)art
Additional properties are added to stm32 u(s)art to allow
for signal inversion.

Signed-off-by: Jonathan Hahn <Jonathan.Hahn@t-online.de>
2022-05-13 08:45:55 -05:00
Alexander Mihajlovic 4ff4991e16 drivers: uart_stm32: Add support for tx/rx swap
Add a new boolean devicetree property `tx-rx-swap` to the
st,stm32-usart binding, used to control TX/RX swap during
device initialization.

Signed-off-by: Alexander Mihajlovic <a@abxy.se>
2022-04-04 13:44:23 -07:00
Jonathan Hahn 32f9dcf328 drivers: uart: Add support for st single wire mode
An additional devicetree poperty `single-wire` is added
to uart and usart bindings of stm32. The driver checks this value
during initialization and enables the single wire mode when set.

Signed-off-by: Jonathan Hahn <Jonathan.Hahn@t-online.de>
2022-01-11 11:47:47 +01:00
Erwan Gouriou 37bf7cbe4f dts/bindings: stm32: Set pinctrl-[0/names] properties as required
Now that STM32 drivers are using pinctrl API, set pintrl-0 and
pintrl-names properties as required in order to report malformed
nodes description soon at build stage and avoid cryptic
DT api build error messages.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-11-26 11:36:42 +01:00
Gerard Marull-Paretas 21a271962c drivers: serial: stm32: use new pinctrl API
Use the new pinctrl API to configure pins.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-11-26 11:36:42 +01:00
Luc Viala 7105875ff4 driver/uart: add enum parity element on devicetree bindings
It helps configurations of the parity mode for uart interfaces

Signed-off-by: Luc Viala <lviala@zaack.io>
2021-06-11 08:53:10 -05:00
Kumar Gala c22e34397e drivers: serial: stm32: set default parity in driver
Have the driver default to UART_CFG_PARITY_NONE if no parity property
exists rather than using default in binding.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-10-15 04:01:22 -05:00
Erwan Gouriou 252a623ca2 drivers/serial: stm32: Enable use of dt pinctrl as serial signals
When available, use dt pinctrl to configure a variable number of
serial signals.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2020-10-01 11:08:42 -05:00
Pauli Salmenrinne 30003ffb86 drivers: serial: stm32: Support for parity in DTS for STM32 uart.
Add support for devicetree property 'parity' for stm32 serial devices.

Signed-off-by: Pauli Salmenrinne <susundberg@gmail.com>
2020-05-06 11:00:12 -05:00
Ulf Magnusson 2934ee2cda dts: bindings: Remove 'title:' and put all info. into 'description:'
Add any useful information from 'title:' to the 'description:' strings
(e.g. explanations of acronyms), and remove 'title:' as well as any
copy-pasted "this binding gives a ..." boilerplate.

Also clean some description strings up a bit.

Some other things could probably be cleaned up (replacing 'GPIO node'
with 'GPIO controller' on controllers for consistency, for example), but
I kept things close to the original to avoid accidentally messing up.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-12-18 11:52:45 +01:00
Ulf Magnusson b9240a3cbc dts: bindings: Preserve newlines in descriptions
With https://github.com/zephyrproject-rtos/zephyr/pull/20185, multi-line
descriptions will be formatted nicely, but using '>' breaks it, because
it removes internal newlines (including between paragraphs).

See https://yaml-multiline.info/.

Replace 'description: >' with 'description: |' to encourage '|'. That'll
prevent '>' from getting copied around and messing up long descriptions.

This will lead to some extra newlines in the output, but it's fine.
Line-wrapping messes up any manual formatting.

The replacement was done with

    $ git ls-files 'dts/bindings/*.yaml' | \
          xargs sed -i 's/description:\s*>/description: |/'

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-10-30 07:55:51 +01:00
Mohamed ElShahawi 2fa48c879a dts: uart: move hw-flow-control to uart.yaml
- hw-flow-control added to uart.yaml as it is a common feature
- cleanup other related yaml files
- change property 'category' to 'rquired' in yaml files

Signed-off-by: Mohamed ElShahawi <ExtremeGTX@hotmail.com>
2019-09-11 07:50:20 -05:00
Ulf Magnusson a0fceff1a2 scripts: dts: Simplify and improve 'compatible' matching
Instead of

    properties:
        compatible:
            constraint: "foo"

, just have

    compatible: "foo"

at the top level of the binding.

For backwards compatibility, the old 'properties: compatible: ...' form
is still accepted for now, and is treated the same as a single-element
'compatible:'.

The old syntax was inspired by dt-schema (though it isn't
dt-schema-compatible), which is in turn a thin wrapper around
json-schema (the idea is to transform .dts files into YAML and then
verify them).

Maybe the idea was to gradually switch the syntax over to dt-schema and
then be able to use unmodified dt-schema bindings, but dt-schema is
really a different kind of tool (a completely standalone linter), and
works very differently from our stuff (see schemas/dt-core.yaml in the
dt-schema repo to get an idea of just how differently).

Better to keep it simple.

This commit also piggybacks some clarifications to the binding template
re. '#cells:'.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-09-07 10:25:02 -05:00
Kumar Gala da9859533e dts/bindings: Convert bindings to new include syntax
Convert from:

inherits:
    !include spi-device.yaml

to:

include: spi-device.yaml

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-09-07 10:25:02 -05:00
Ulf Magnusson fcd665a26c dts: bindings: Have 'required: true/false' instead of 'category: ...'
The 'category: required/optional' setting for properties is just a
yes/no thing. Using a boolean makes it clearer, so have
'required: true/false' instead.

Print a clear error when 'category:' is used:

    edtlib.EDTError: please put 'required: true' instead of 'category:
    required' in 'properties: foo: ...' in
    test-bindings/sub-node-parent.yaml - 'category' has been removed

The old scripts in scripts/dts/ ignore this setting, and only print a
warning if 'category: required' in an inherited binding is changed to
'category: optional'. Remove that code, since the new scripts already
have the same check.

The replacement was done with

    git ls-files 'dts/bindings/*.yaml' | xargs sed -i \
        -e 's/category:\s*required/required: true/' \
        -e 's/category:\s*optional/required: false/'

dts/binding-template.yaml is updated as well.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-09-07 10:25:02 -05:00
Ulf Magnusson 5d8833e2f9 dts: bindings: Rename uart.yaml to uart-controller.yaml
Renaming bindings to consistently be called foo-controller.yaml for
controllers and foo-device.yaml for devices (last one mostly makes sense
for devices on buses and the like).

I was thinking of having a plain foo.yaml be the controller as well, but

    !include interrupt.yaml

reads much worse than

    !include interrupt-controller.yaml

Another advantage of this approach is that no binding changes meaning
(which could be risky). It's just adding suffixes to filenames.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-09-07 10:25:02 -05:00
Ulf Magnusson 0ec0c84808 dts: bindings: Remove unused 'version' field
No binding has anything but 'version: 0.1', and the code in scripts/dts/
never does anything with it except print a warning if it isn't there.
It's undocumented what it means.

I suspect it's overkill if it's meant to be the binding format version.
If we'd need to tell different versions from each other, we could change
some other minor thing in the format, and it probably won't be needed.

Remove the 'version' fields from the bindings and the warning from the
scripts/dts/ scripts.

The new device tree script will give an error when unknown fields appear
in bindings.

The deletion was done with

    git ls-files 'dts/bindings/*.yaml' | xargs sed -i '/^\s*version: /d'

Some blank lines at the beginning of bindings were removed as well.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-07-22 09:28:07 -04:00
Kumar Gala 8e1d3f3328 dts/bindings: Remove generation from binding
Now that the generation script doesn't look at the "generation" in the
YAML, we can remove it from the binding files.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-07-11 06:51:17 -04:00
Ulf Magnusson eba81c6e54 yaml: Remove redundant document separators
YAML document separators are needed e.g. when doing

  $ cat doc1.yaml doc2.yaml | <parser>

For the bindings, we never parse concatenated documents. Assume we don't
for any other .yaml files either.

Having document separators in e.g. base.yaml makes !include a bit
confusing, since the !included files are merged and not separate
documents (the merging is done in Python code though, so it makes no
difference for behavior).

The replacement was done with

    $ git ls-files '*.yaml' | \
        xargs sed -i -e '${/\s*\.\.\.\s*/d;}' -e 's/^\s*---\s*$//'

First pattern removes ... at the end of files, second pattern clears a
line with a lone --- on it.

Some redundant blank lines at the end of files were cleared with

    $ git ls-files '*.yaml' | xargs sed -i '${/^\s*$/d}'

This is more about making sure people can understand why every part of a
binding is there than about removing some text.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-06-19 10:40:10 +02:00
Kumar Gala 48100df875 dts/bindings: Move common properties into a base.yaml
Move common properties like 'compatible', 'reg', 'reg-names',
'interrupts', 'interrupt-names', and 'label' into one common base.yaml
that all the other yaml's can inherit from.  This removes both
duplication and inconsistent definition.

The device specific yamls just need to say if a property is 'required'
or not.

NOTE: due to some generation conflicts we did not covert
'soc-nv-flash.yaml' to use base.yaml.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-06-10 11:17:41 -05:00
Georgij Cernysiov 04da64db76 drivers: serial: stm32: dts binding, and fixup for flow control
Allows to enable initial RTS/CTS hardware flow control
in the dts.

Co-authored-by: Benoit Leforestier <benoit.leforestier@gmail.com>
Signed-off-by: Georgij Cernysiov <g.cernysiov@elco-automation.de>
2019-04-17 16:09:54 -05:00
Kumar Gala 011b93011e dts: yaml: remove unused id field
The 'id' field was never used and tended to just have the compat of the
node.  Lets remove it and removed some code in extract_dts_includes.py
related to it.  Added a warning if 'id' is set in a yaml so we can
remove it going forward.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-10-11 08:03:44 -05:00
Erwan Gouriou 1755cf6582 dts/bindings: Add 'generation' directive on for 'compatible' property
Add 'generation: define' directive to 'compatible' property.
When existing for a type of device, move compatible property
description in device base structure (eg: i2c.yaml)

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2018-09-14 08:02:53 -05:00
Erwan Gouriou 922490d3bb dts/bindings: Remove superfluous property definition
"clocks" property is defined in st,stm32-u(s)art.yaml
files while aslo defined in uart.yaml.
Remove redundant information.

Fixes #7974

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2018-05-29 07:43:12 -07:00
Erwan Gouriou 104553d93f yaml: fix properties syntax to 'mapping' instead of 'series'
According to yaml syntaxic rules, 'properties' described in dts
bindings yaml files could be seen as 'mapping'(key/value couple),
instead of 'series' (list of single elements).
yaml 'mappings' will then be converted by yaml python library as
python 'dict' which will ease treatment (instead of current list
as were before this commit).
Same treatment is applied to 'inherits'.

script extract_dts_inlcude is updated to take change of yaml_list
structre into account. This allows some code simplification. Largest
impact is yaml_collapse function which works now allow complete
overload method on all the attributes of a yaml nodes.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2017-11-28 11:42:59 -06:00
Kumar Gala b5c4237009 dts: yaml: rework yaml file layout
Moved yaml files to be under dts/bindings and have the bindings try
and match the linux doc device tree binding dir structure as the
canonical binding reference.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-10-23 15:02:00 +02:00