linux-kernel - Re: [PATCH v4 2/2] dt-bindings: mmc: xenon: Convert to JSON schema

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Date:   Wed, 30 Mar 2022 09:40:27 -0500
From:   Rob Herring <robh@...nel.org>
To:     Chris Packham <Chris.Packham@...iedtelesis.co.nz>
Cc:     Krzysztof Kozlowski <krzk@...nel.org>,
        "andrew@...n.ch" <andrew@...n.ch>,
        "ulf.hansson@...aro.org" <ulf.hansson@...aro.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "sebastian.hesselbarth@...il.com" <sebastian.hesselbarth@...il.com>,
        "gregory.clement@...tlin.com" <gregory.clement@...tlin.com>,
        "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "krzk+dt@...nel.org" <krzk+dt@...nel.org>,
        "huziji@...vell.com" <huziji@...vell.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH v4 2/2] dt-bindings: mmc: xenon: Convert to JSON schema

On Tue, Mar 29, 2022 at 07:50:59PM +0000, Chris Packham wrote:
> 
> On 30/03/22 02:14, Krzysztof Kozlowski wrote:
> > On 29/03/2022 13:50, Rob Herring wrote:
> >> On Tue, 29 Mar 2022 13:02:31 +1300, Chris Packham wrote:
> >>> Convert the marvell,xenon-sdhci binding to JSON schema. Currently the
> >>> in-tree dts files don't validate because they use sdhci@ instead of mmc@
> >>> as required by the generic mmc-controller schema.
> >>>
> >>> The compatible "marvell,sdhci-xenon" was not documented in the old
> >>> binding but it accompanies the of "marvell,armada-3700-sdhci" in the
> >>> armada-37xx SoC dtsi so this combination is added to the new binding
> >>> document.
> >>>
> >>> Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
> >>> Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>
> >>> ---
> >>>
> >>> Notes:
> >>>      Changes in v4:
> >>>      - Add review from Krzysztof
> >>>      - Squash in addition of marvell,sdhci-xenon with an explanation in the
> >>>        commit message
> >>>      Changes in v3:
> >>>      - Don't accept ap807 without ap806
> >>>      - Add ref: string for pad-type
> >>>      Changes in v2:
> >>>      - Update MAINTAINERS entry
> >>>      - Incorporate feedback from Krzysztof
> >>>
> >>>   .../bindings/mmc/marvell,xenon-sdhci.txt      | 173 -----------
> >>>   .../bindings/mmc/marvell,xenon-sdhci.yaml     | 275 ++++++++++++++++++
> >>>   MAINTAINERS                                   |   2 +-
> >>>   3 files changed, 276 insertions(+), 174 deletions(-)
> >>>   delete mode 100644 Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.txt
> >>>   create mode 100644 Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.yaml
> >>>
> >> 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:
> >>
> >> dtschema/dtc warnings/errors:
> >> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.example.dt.yaml: mmc@...000: compatible: 'oneOf' conditional failed, one must be fixed:
> >> 	['marvell,armada-3700-sdhci'] is too short
> >> 	'marvell,armada-3700-sdhci' is not one of ['marvell,armada-cp110-sdhci', 'marvell,armada-ap806-sdhci']
> >> 	'marvell,armada-ap807-sdhci' was expected
> >> 	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.yaml
> >> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.example.dt.yaml: mmc@...000: compatible: 'oneOf' conditional failed, one must be fixed:
> >> 	['marvell,armada-3700-sdhci'] is too short
> >> 	'marvell,armada-3700-sdhci' is not one of ['marvell,armada-cp110-sdhci', 'marvell,armada-ap806-sdhci']
> >> 	'marvell,armada-ap807-sdhci' was expected
> >> 	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.yaml
> >>
> >> doc reference errors (make refcheckdocs):
> > Chris, your own dt binding does not pass it's check (example)...
> >
> > After updating the compatibles, you need to check the example. The
> > examples are anyway duplicating common stuff, so half of them could be
> > removed.
> 
> Yeah silly me. I started taking short cuts to run dt_binding_check 
> dtbs_check as one command but then the dt_bindings_check output scrolled 
> off the top of my terminal.
> 
> As for the examples themselves I want to leave what's there as a fairly 
> direct translation of the old binding. If we consider them unnecessary 
> removing them can be done as a follow-up.

The examples cannot have warnings/errors.

Rob