• Paul Cercueil's avatar
    regulator: dt-bindings: Convert active-semi PMIC docs to YAML schemas · 413ec729
    Paul Cercueil authored
    Create YAML bindings for the Active-semi PMICs and remove the old text
    files.
    
    The bindings aren't perfect, for instance I couldn't find good
    descriptions for the vendor properties in the "charger" node of the
    ACT8945A because I am not familiar with the hardware and these
    properties were not documented anywhere.
    
    The YAML schemas are a bit different than what is described in the old
    text files, because these were sometimes wrong or had missing
    information. This is the case for the ACT8600 documentation, which
    specified the valid node names for the regulators, while the driver was
    expecting different names. This led to the current situation where we
    have two different boards using different names for the regulators:
    - arch/mips/boot/dts/ingenic/ci20.dts uses the names documented in the
      text file,
    - arch/mips/boot/dts/ingenic/gcw0.dts uses the names that the driver
      expects.
    In theory, the driver should be fixed to follow the documentation, and
    accept both naming schemes. In practice though, when the PMIC node was
    added to the ci20.dts board file, the names were already wrong in
    regards to what the driver expected, so it never really worked
    correctly and wasn't tested properly. Furthermore, in that board the
    consumers of the regulators aren't working for various other reasons
    (invalid GPIOs, etc.).
    
    For that reason, for the ACT8600 bindings I decided to only use the node
    names that the driver expects (and that gcw0.dts uses), instead of
    accepting both old and new names. A follow-up patch will update the CI20
    board to use the new regulator names.
    Signed-off-by: default avatarPaul Cercueil <paul@crapouillou.net>
    Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
    Link: https://lore.kernel.org/r/20221214155152.14349-1-paul@crapouillou.netSigned-off-by: default avatarMark Brown <broonie@kernel.org>
    413ec729
active-semi,act8865.yaml 4.06 KB