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zephyr/dts/bindings/spi/nxp,imx-lpspi.yaml

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dts: Add lpspi yaml bindings and dts nodes Adds yaml bindings and dts nodes for the nxp lpspi peripheral. Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2018-09-15 05:14:32 +08:00
# Copyright (c) 2018, NXP
# SPDX-License-Identifier: Apache-2.0
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 06:03:49 +08:00
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>
2019-11-19 15:39:11 +08:00
description: NXP i.MX LPSPI controller
dts: Add lpspi yaml bindings and dts nodes Adds yaml bindings and dts nodes for the nxp lpspi peripheral. Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2018-09-15 05:14:32 +08:00
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>
2019-08-20 02:32:25 +08:00
compatible: "nxp,imx-lpspi"
drivers: spi: enable pinctrl for spi_mcux_lpspi Enable pinctrl for lpspi driver Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
2022-03-09 02:28:04 +08:00
include: ["spi-controller.yaml", "pinctrl-device.yaml"]
dts: Add lpspi yaml bindings and dts nodes Adds yaml bindings and dts nodes for the nxp lpspi peripheral. Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2018-09-15 05:14:32 +08:00
properties:
reg:
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>
2019-08-28 06:22:01 +08:00
required: true
dts: Add lpspi yaml bindings and dts nodes Adds yaml bindings and dts nodes for the nxp lpspi peripheral. Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2018-09-15 05:14:32 +08:00
interrupts:
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>
2019-08-28 06:22:01 +08:00
required: true
dts: Add lpspi yaml bindings and dts nodes Adds yaml bindings and dts nodes for the nxp lpspi peripheral. Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2018-09-15 05:14:32 +08:00
clocks:
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>
2019-08-28 06:22:01 +08:00
required: true
drivers: spi: Add optional delays to mcux dspi and lpspi drivers Adds optional device tree properties to set delays between spi chip select assert/deassert and clock edges in the mcux dspi and lpspi drivers. If these properties are not set, then the minimum supported delays are used. Verified that tests/drivers/spi/spi_loopback/ still passes on mimxrt1050_evk (lpspi driver) and frdm_k64f (dspi driver). Measured with a scope that the pcs-sck-delay and sck-pcs-delay times on the first spi transaction in the test are reduced from 7.82 us to 20 ns on mimxrt1050_evk. Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2020-06-27 23:22:03 +08:00
pcs-sck-delay:
type: int
required: false
description: |
Delay in nanoseconds from the chip select assert to the first clock
edge. If not set, the minimum supported delay is used.
sck-pcs-delay:
type: int
required: false
description: |
Delay in nanoseconds from the last clock edge to the chip select
deassert. If not set, the minimum supported delay is used.
transfer-delay:
type: int
required: false
description: |
Delay in nanoseconds from the chip select deassert to the next chip
select assert. If not set, the minimum supported delay is used.