Re: [PATCH v2 1/3] dt-bindings: mmc: Add bindings for StarFive

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On 2022/12/27 21:05, Krzysztof Kozlowski wrote:
> On 27/12/2022 13:22, William Qiu wrote:
>> Add documentation to describe StarFive
>> designware mobile storage host controller driver.
> 
> Please wrap commit message according to Linux coding style / submission
> process (neither too early nor over the limit):
> https://elixir.bootlin.com/linux/v5.18-rc4/source/Documentation/process/submitting-patches.rst#L586
> 
> The subject is a bit redundant and not precise. No need to mention
> "bindings" twice but "StarFive" is really too generic. Do you add now
> all possible devices from StarFive? I see only one. Rephrase (use git
> log to find examples).
> 

Will update

>> 
>> Signed-off-by: William Qiu <william.qiu@xxxxxxxxxxxxxxxx>
>> ---
>>  .../bindings/mmc/starfive,jh7110-mmc.yaml     | 72 +++++++++++++++++++
>>  1 file changed, 72 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/mmc/starfive,jh7110-mmc.yaml
>> 
>> diff --git a/Documentation/devicetree/bindings/mmc/starfive,jh7110-mmc.yaml b/Documentation/devicetree/bindings/mmc/starfive,jh7110-mmc.yaml
>> new file mode 100644
>> index 000000000000..430dd5f24933
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mmc/starfive,jh7110-mmc.yaml
>> @@ -0,0 +1,72 @@
>> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/mmc/starfive,jh7110-mmc.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: StarFive Designware Mobile Storage Host Controller
>> +
>> +description:
>> +  StarFive uses the Synopsys designware mobile storage host controller
>> +  to interface a SoC with storage medium such as eMMC or SD/MMC cards.
>> +
>> +allOf:
>> +  - $ref: synopsys-dw-mshc-common.yaml#
>> +
>> +maintainers:
>> +  - William Qiu <william.qiu@xxxxxxxxxxxxxxxx>
>> +
>> +properties:
>> +  compatible:
>> +    const: starfive,jh7110-mmc
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  clocks:
>> +    items:
>> +      - description: biu clock
>> +      - description: ciu clock
>> +
>> +  clock-names:
>> +    items:
>> +      - const: biu
>> +      - const: ciu
>> +
>> +  interrupts:
>> +    maxItems: 1
>> +
>> +  starfive,syscon:
> 
> Name is not specific enough. What is syscon? Any syscon? This needs to
> be specific.
> 

Will update.

>> +    $ref: /schemas/types.yaml#/definitions/phandle-array
>> +    description:
>> +      arg0:arg0 is syscon.
> 
> What is syscon?
> 

Will update.

>> +      arg1:arg1 is syscon register offset, used to enable MMC function.
> 
> Describe the argument, not what it is used for, e.g. "offset of XXX YYY ZZZ"
> 
>> +      arg2:arg2 is used to enable the register shift of the MMC function.
>> +      arg3:arg3 is used to enable the register mask of the MMC function.
> 
> That's not how the phandle array is described. Instead:
> 
> https://elixir.bootlin.com/linux/v5.18-rc1/source/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml#L42
> 

Hi Krzysztof,

Thank you for taking time to review and provide helpful comments for this patch.
I will fix all the above issues in the next version.

Best Regards,
William Qiu

> 
> 
> Best regards,
> Krzysztof
> 



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