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SubjectRe: [PATCH v2 2/5] dt-bindings: mmc: sdhci-msm: constrain reg-names perp variants
Hi,

On Mon, Jul 11, 2022 at 7:53 AM Krzysztof Kozlowski
<krzysztof.kozlowski@linaro.org> wrote:
>
> On 11/07/2022 16:52, Doug Anderson wrote:
> > Hi
> >
> > On Mon, Jul 11, 2022 at 1:29 AM Krzysztof Kozlowski
> > <krzysztof.kozlowski@linaro.org> wrote:
> >>
> >> The entries in arrays must have fixed order, so the bindings and Linux
> >> driver expecting various combinations of 'reg' addresses was never
> >> actually conforming to guidelines.
> >>
> >> The 'core' reg entry is valid only for SDCC v4 and lower, so disallow it
> >> in SDCC v5. SDCC v4 supports CQE and ICE, so allow them, even though
> >> the qcom,sdhci-msm-v4 compatible is used also for earlier SoCs with SDCC
> >> v2 or v3, so it is not entirely accurate.
> >>
> >> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> >>
> >> ---
> >>
> >> Changes since v1:
> >> 1. Rework the patch based on Doug's feedback.
> >> ---
> >> .../devicetree/bindings/mmc/sdhci-msm.yaml | 61 ++++++++++++-------
> >> 1 file changed, 38 insertions(+), 23 deletions(-)
> >
> > In the ${SUBJECT} I'm not sure what a "perp variant" is. Is that a
> > typo or just a phrase I'm not aware of?
>
> Should be:
> "per variants"
>
> >
> >
> >> diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml b/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml
> >> index fc6e5221985a..2f0fdd65e908 100644
> >> --- a/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml
> >> +++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml
> >> @@ -49,33 +49,11 @@ properties:
> >>
> >> reg:
> >> minItems: 1
> >> - items:
> >> - - description: Host controller register map
> >> - - description: SD Core register map
> >> - - description: CQE register map
> >> - - description: Inline Crypto Engine register map
> >> + maxItems: 4
> >>
> >> reg-names:
> >> minItems: 1
> >> maxItems: 4
> >> - oneOf:
> >> - - items:
> >> - - const: hc
> >> - - items:
> >> - - const: hc
> >> - - const: core
> >> - - items:
> >> - - const: hc
> >> - - const: cqhci
> >> - - items:
> >> - - const: hc
> >> - - const: cqhci
> >> - - const: ice
> >> - - items:
> >> - - const: hc
> >> - - const: core
> >> - - const: cqhci
> >> - - const: ice
> >>
> >> clocks:
> >> minItems: 3
> >> @@ -177,6 +155,43 @@ required:
> >> allOf:
> >> - $ref: mmc-controller.yaml#
> >>
> >> + - if:
> >> + properties:
> >> + compatible:
> >> + contains:
> >> + enum:
> >> + - qcom,sdhci-msm-v4
> >> + then:
> >> + properties:
> >> + reg:
> >> + minItems: 2
> >> + items:
> >> + - description: Host controller register map
> >> + - description: SD Core register map
> >> + - description: CQE register map
> >> + - description: Inline Crypto Engine register map
> >> + reg-names:
> >> + minItems: 2
> >> + items:
> >> + - const: hc
> >> + - const: core
> >> + - const: cqhci
> >> + - const: ice
> >> + else:
> >> + properties:
> >> + reg:
> >> + minItems: 1
> >> + items:
> >> + - description: Host controller register map
> >> + - description: CQE register map
> >> + - description: Inline Crypto Engine register map
> >> + reg-names:
> >> + minItems: 1
> >> + items:
> >> + - const: hc
> >> + - const: cqhci
> >> + - const: ice
> >
> > Do you need to set "maxItems" here? If you don't then will it inherit
> > the maxItems of 4 from above?
>
> No, items determine the size instead.

Can you just remove the "maxItems" from above then? Does it buy us anything?

In any case, with the ${SUBJECT} fixed:

Reviewed-by: Douglas Anderson <dianders@chromium.org>

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