[0/2] Make AUX gpio pin optional for ktd2692

Some appliances of ktd2692 don't have the AUX pin connected to
a GPIO. Specifically, Samsung Galaxy J5 (2015), which uses ktd2692
for driving the front flash LED, has the pin not connected anywhere on
schematics. Make specifying the AUX pin optional, since it is additional
functionality and only affects amount of current going through the LED.

Also convert the txt device-tree bindings to yaml and pick up maintainership
over the yaml binding and the driver itself.

Markuss Broks (2):
  dt-bindings: leds: convert ktd2692 bindings to yaml
  leds: ktd2692: Make aux-gpios optional

 .../bindings/leds/kinetic,ktd2692.yaml        | 87 +++++++++++++++++++
 .../devicetree/bindings/leds/leds-ktd2692.txt | 50 -----------
 MAINTAINERS                                   |  6 ++
 drivers/leds/flash/leds-ktd2692.c             | 18 ++--
 4 files changed, 103 insertions(+), 58 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/leds/kinetic,ktd2692.yaml
 delete mode 100644 Documentation/devicetree/bindings/leds/leds-ktd2692.txt

On Thu, 07 Apr 2022 13:10:05 +0300, Markuss Broks wrote:
> This patch converts the leds-ktd2692.txt bindings to modern yaml
> style device-tree bindings.
> 
> Signed-off-by: Markuss Broks <markuss.broks@gmail.com>
> ---
>  .../bindings/leds/kinetic,ktd2692.yaml        | 87 +++++++++++++++++++
>  .../devicetree/bindings/leds/leds-ktd2692.txt | 50 -----------
>  2 files changed, 87 insertions(+), 50 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/leds/kinetic,ktd2692.yaml
>  delete mode 100644 Documentation/devicetree/bindings/leds/leds-ktd2692.txt
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:
./Documentation/devicetree/bindings/leds/kinetic,ktd2692.yaml:37:24: [error] syntax error: expected <block end>, but found '<scalar>' (syntax)

dtschema/dtc warnings/errors:
make[1]: *** Deleting file 'Documentation/devicetree/bindings/leds/kinetic,ktd2692.example.dts'
Traceback (most recent call last):
  File "/usr/local/bin/dt-extract-example", line 52, in <module>
    binding = yaml.load(open(args.yamlfile, encoding='utf-8').read())
  File "/usr/local/lib/python3.8/dist-packages/ruamel/yaml/main.py", line 434, in load
    return constructor.get_single_data()
  File "/usr/local/lib/python3.8/dist-packages/ruamel/yaml/constructor.py", line 119, in get_single_data
    node = self.composer.get_single_node()
  File "_ruamel_yaml.pyx", line 706, in _ruamel_yaml.CParser.get_single_node
  File "_ruamel_yaml.pyx", line 724, in _ruamel_yaml.CParser._compose_document
  File "_ruamel_yaml.pyx", line 775, in _ruamel_yaml.CParser._compose_node
  File "_ruamel_yaml.pyx", line 889, in _ruamel_yaml.CParser._compose_mapping_node
  File "_ruamel_yaml.pyx", line 775, in _ruamel_yaml.CParser._compose_node
  File "_ruamel_yaml.pyx", line 889, in _ruamel_yaml.CParser._compose_mapping_node
  File "_ruamel_yaml.pyx", line 775, in _ruamel_yaml.CParser._compose_node
  File "_ruamel_yaml.pyx", line 891, in _ruamel_yaml.CParser._compose_mapping_node
  File "_ruamel_yaml.pyx", line 904, in _ruamel_yaml.CParser._parse_next_event
ruamel.yaml.parser.ParserError: while parsing a block mapping
  in "<unicode string>", line 36, column 5
did not find expected key
  in "<unicode string>", line 37, column 24
make[1]: *** [Documentation/devicetree/bindings/Makefile:26: Documentation/devicetree/bindings/leds/kinetic,ktd2692.example.dts] Error 1
make[1]: *** Waiting for unfinished jobs....
./Documentation/devicetree/bindings/leds/kinetic,ktd2692.yaml:  while parsing a block mapping
  in "<unicode string>", line 36, column 5
did not find expected key
  in "<unicode string>", line 37, column 24
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/leds/kinetic,ktd2692.yaml: ignoring, error parsing file
make: *** [Makefile:1401: dt_binding_check] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.