linux-kernel - Re: Aw: Re: Re: [PATCH v2 1/2] dt-bindings: mmc: mtk-sd: Add mt7988 SoC

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Message-ID: <52790e95-5cb8-41a3-8184-dbde917ed15d@kernel.org>
Date: Mon, 7 Oct 2024 13:13:14 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Frank Wunderlich <frank-w@...lic-files.de>
Cc: Frank Wunderlich <linux@...web.de>,
 Chaotian Jing <chaotian.jing@...iatek.com>,
 Ulf Hansson <ulf.hansson@...aro.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
 Wenbin Mei <wenbin.mei@...iatek.com>, linux-mmc@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org,
 daniel@...rotopia.org, john@...ozen.org, eladwf@...il.com,
 ansuelsmth@...il.com
Subject: Re: Aw: Re: Re: [PATCH v2 1/2] dt-bindings: mmc: mtk-sd: Add mt7988
 SoC

On 07/10/2024 09:56, Frank Wunderlich wrote:
> Hi
>> Gesendet: Montag, 07. Oktober 2024 um 09:04 Uhr
>> Von: "Krzysztof Kozlowski" <krzk@...nel.org>
>> Betreff: Re: Aw: Re: [PATCH v2 1/2] dt-bindings: mmc: mtk-sd: Add mt7988 SoC
>>
>> On 07/10/2024 08:59, Frank Wunderlich wrote:
>>>> Gesendet: Montag, 07. Oktober 2024 um 07:55 Uhr
>>>> Von: "Krzysztof Kozlowski" <krzk@...nel.org>
>>>> An: "Frank Wunderlich" <linux@...web.de>
>>>> Betreff: Re: [PATCH v2 1/2] dt-bindings: mmc: mtk-sd: Add mt7988 SoC
>>>>
>>>> On Sun, Oct 06, 2024 at 05:34:45PM +0200, Frank Wunderlich wrote:
>>>>> From: Frank Wunderlich <frank-w@...lic-files.de>
>>>>>
>>>>> Add binding definitions for mmc on MT7988 SoC.
>>>>>
>>>>> Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
>>>>> ---
>>>>> v2:
>>>>> - fixed minItems to 4
>>>>> ---
>>>>>  .../devicetree/bindings/mmc/mtk-sd.yaml       | 24 +++++++++++++++++++
>>>>>  1 file changed, 24 insertions(+)
>>>>>
>>>>> diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
>>>>> index c532ec92d2d9..7380f72ea189 100644
>>>>> --- a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
>>>>> +++ b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
>>>>> @@ -21,6 +21,7 @@ properties:
>>>>>            - mediatek,mt7620-mmc
>>>>>            - mediatek,mt7622-mmc
>>>>>            - mediatek,mt7986-mmc
>>>>> +          - mediatek,mt7988-mmc
>>>>>            - mediatek,mt8135-mmc
>>>>>            - mediatek,mt8173-mmc
>>>>>            - mediatek,mt8183-mmc
>>>>> @@ -263,6 +264,29 @@ allOf:
>>>>>              - const: bus_clk
>>>>>              - const: sys_cg
>>>>>
>>>>> +  - if:
>>>>> +      properties:
>>>>> +        compatible:
>>>>> +          contains:
>>>>> +            enum:
>>>>> +              - mediatek,mt7988-mmc
>>>>> +    then:
>>>>> +      properties:
>>>>> +        clocks:
>>>>> +          minItems: 4
>>>>
>>>> Drop
>>
>> Drop this line.
>>
>>>>
>>>>> +          items:
>>>>> +            - description: source clock
>>>>> +            - description: HCLK which used for host
>>>>> +            - description: Advanced eXtensible Interface
>>>>> +            - description: Advanced High-performance Bus clock
>>>>> +        clock-names:
>>>>> +          minItems: 3
>>>>
>>>> This is still wrong... anyway, drop.
>>>
>>> arg, sorry again...i should triple-check all before resending.
>>
>> Drop this line.
>>
>>>
>>> but dropping means the global 2 is used (making axi+ahb optional), or am i wrong? afaik "minItems: 4" is right here
>>
>> How minItems:4 is right here?
> 
> mt7988 needs all 4 clocks, tested with only first 2 (based on global minitems) and got this (similar with first 3 clocks):
> 
> [   10.826271] mtk-msdc 11230000.mmc: msdc_request_timeout: aborting cmd/data/mrq
> [   10.833485] mtk-msdc 11230000.mmc: msdc_request_timeout: aborting mrq=(____ptrval____) cmd=18
> [   10.842006] mtk-msdc 11230000.mmc: msdc_request_timeout: aborting cmd=23
> [   10.848704] mtk-msdc 11230000.mmc: msdc_track_cmd_data: cmd=18 arg=00036402; host->error=0x00000002
> [   15.866269] mtk-msdc 11230000.mmc: msdc_request_timeout: aborting cmd/data/mrq
> [   15.873480] mtk-msdc 11230000.mmc: msdc_request_timeout: aborting mrq=(____ptrval____) cmd=13
> [   15.881998] mtk-msdc 11230000.mmc: msdc_request_timeout: aborting cmd=13
> [   15.888694] mtk-msdc 11230000.mmc: msdc_track_cmd_data: cmd=13 arg=00010000; host->error=0x00000002
> 
> so minItems:4 is imho right here

So the list has 5 items? Then your binding is incomplete.

Best regards,
Krzysztof