Messages in this thread | | | Date | Wed, 14 Jul 2021 21:40:46 +0100 | From | Paul Cercueil <> | Subject | Re: [PATCH 1/2] dt-bindings: display/panel: Add Innolux EJ030NA |
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Hi Rob,
Le mer., juil. 14 2021 at 14:30:13 -0600, Rob Herring <robh@kernel.org> a écrit : > On Sat, Jul 10, 2021 at 11:21:56AM +0100, Paul Cercueil wrote: >> >> [...] >> >> > > I am not sure; the doc states that this (additionalProperties: >> > > false) "can't >> > > be used in case where another schema is referenced", which is >> the >> > > case here, >> > > as we include "panel-common.yaml". >> > >> > This DT schema already list all relevant properties like: >> > >> > backlight: true >> > >> > So "additionalProperties: false" tells that no other properties >> are >> > allowed other than the listed properties. >> > >> > To my best understanding unevaluatedProperties: false is less >> strict and >> > should be used if one does not list all possilbe properties. > > Right. There's some value of listing which common properties you are > using as well. > >> > This could be the case for a panel haging below a SPI controller >> as in >> > this case. So in other words giving this some extra thought I >> think >> > unevaluatedProperties: false is OK here. >> >> A panel below a SPI controller would have all its SPI-specific >> properties >> covered by spi-controller.yaml, I believe? So maybe >> "additionalProperties: >> false" would work? > > No. Because spi-controller.yaml is evaluated on the SPI host node and > this one is evaluated on the SPI slave. There's some work to address > this, but it means every SPI slave will have to reference a SPI device > schema. The bigger issue here is SPI controller specific device > properties. So for this case, we'll have to use unevaluatedProperties.
Thank you for the clarification.
Cheers, -Paul
>> >> In any case, if I use "additionalProperties: false", "make >> dt_binding_check" >> complains that my example's "spi-max-frequency" property is not >> covered. So >> maybe you are right. >> >> > So my r-b is ok if you keep it as it. >> > >> > PS. Where do you guys hang out with the downfall of freenode - >> somewhere >> > on oftc? >> >> We moved to #opendingux on Libera. >> >> Cheers, >> -Paul >> >> >>
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