[PATCH v2 2/2] dt-bindings: mmc: st,sdhci: convert to DT schema

Charan Pedumuru charan.pedumuru at gmail.com
Wed May 6 06:55:52 PDT 2026



On 04-05-2026 13:13, Krzysztof Kozlowski wrote:
> On Sun, May 03, 2026 at 08:35:30AM +0000, Charan Pedumuru wrote:
>> +$id: http://devicetree.org/schemas/mmc/st,sdhci.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: STMicroelectronics SDHCI-ST MMC/SD Controller
>> +
>> +description:
>> +  The STMicroelectronics SDHCI-ST MMC/SD host controller, which is
>> +  compliant with the SD Host Controller Interface (SDHCI) specification and
>> +  is used to interface with MMC, SD and SDIO cards. The ST SDHCI controller
>> +  extends the standard SDHCI capabilities with platform-specific
>> +  configurations such as additional register regions,clock inputs, and delay
>> +  control mechanisms required for signal timing adjustments which are
>> +  necessary to support high-speed modes and ensure reliable data transfer
>> +  across different ST SoCs.
>> +
>> +allOf:
>> +  - $ref: mmc-controller.yaml#
>> +
>> +maintainers:
>> +  - Peter Griffin <peter.griffin at linaro.org>
>> +
>> +properties:
>> +  compatible:
>> +    oneOf:
>> +      - const: st,sdhci
>> +      - items:
>> +          - const: st,sdhci-stih407
>> +          - const: st,sdhci
>> +
>> +  reg:
>> +    minItems: 1
>> +    items:
>> +      - description: Base address and size of the MMC controller registers
> 
> s/Base address and size of the//

Okay, I will remove these words.

> 
>> +      - description: Base address and size of the MMC delay/auxiliary registers
> 
> Here the same

Okay.

> 
>> +
>> +  reg-names:
>> +    oneOf:
>> +      - items:
>> +          - const: mmc
> 
> Drop three lines above

Sure.

> 
>> +      - items:
> 
> So this is just items like you have in "reg" part. Same syntax.
> 
>> +          - const: mmc
>> +          - const: top-mmc-delay
>> +
>> +  clocks:
> 
> Here and:

Should I add minItems and maxItems instead of items?

> 
>> +    items:
>> +      - description: Clock for the MMC controller
>> +      - description: Interconnect (ICN) clock
>> +
>> +  clock-names:
> 
> here: Old binding icn is optional. You need to explain in the commit msg
> all the changes done during conversion.

Okay, I will write this change in commit message.

> 
>> +    items:
>> +      - const: mmc
>> +      - const: icn
>> +
>> +  interrupts:
>> +    maxItems: 1
>> +
>> +  interrupt-names:
>> +    const: mmcirq
>> +
>> +  resets:
>> +    maxItems: 1
> 
> Best regards,
> Krzysztof
> 

-- 
Best Regards,
Charan.




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