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SubjectRe: [PATCH v2 2/5] dt-bindings: mmc: sdhci-msm: constrain reg-names perp variants
From
On 11/07/2022 17:11, Doug Anderson wrote:
> 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?

There is no maxItems directly here...

>
> In any case, with the ${SUBJECT} fixed:
>
> Reviewed-by: Douglas Anderson <dianders@chromium.org>


Best regards,
Krzysztof

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