Converted the text bindings to YAML and validated them individually using following commands

$ make dt_binding_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/
$ make dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/

changelogs are available in respective patches.

Dharma Balasubiramani (3):
  dt-bindings: display: convert Atmel's HLCDC to DT schema
  dt-bindings: atmel,hlcdc: convert pwm bindings to json-schema
  dt-bindings: mfd: atmel,hlcdc: Convert to DT schema format

 .../atmel/atmel,hlcdc-display-controller.yaml | 110 ++++++++++++++++++
 .../bindings/display/atmel/hlcdc-dc.txt       |  75 ------------
 .../devicetree/bindings/mfd/atmel,hlcdc.yaml  | 105 +++++++++++++++++
 .../devicetree/bindings/mfd/atmel-hlcdc.txt   |  56 ---------
 .../bindings/pwm/atmel,hlcdc-pwm.yaml         |  47 ++++++++
 .../bindings/pwm/atmel-hlcdc-pwm.txt          |  29 -----
 6 files changed, 262 insertions(+), 160 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/atmel/atmel,hlcdc-display-controller.yaml
 delete mode 100644 Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt
 create mode 100644 Documentation/devicetree/bindings/mfd/atmel,hlcdc.yaml
 delete mode 100644 Documentation/devicetree/bindings/mfd/atmel-hlcdc.txt
 create mode 100644 Documentation/devicetree/bindings/pwm/atmel,hlcdc-pwm.yaml
 delete mode 100644 Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt

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2.25.1