[PATCH] mmc: sdhci: Add SDHCI_SPEC_400, _410, and _420 version defines

[Tanmay Kathpalia]

Hi Peng,

Thank you for your feedback.

On 10/23/2025 12:38 PM, Peng Fan wrote:
> Hi Tanmay,
> 
>> Subject: [PATCH] mmc: sdhci: Add SDHCI_SPEC_400, _410, and _420
>> version defines
>>
>> Add SDHCI_SPEC_400, SDHCI_SPEC_410, and SDHCI_SPEC_420 macros
>> to sdhci.h to support newer SDHCI specification versions. These defines
>> are required for compatibility with controllers implementing SDHCI 4.0
>> and above.
>>
>> Signed-off-by: Tanmay Kathpalia <tanmay.kathpalia at altera.com>
>> ---
>>   include/sdhci.h | 3 +++
>>   1 file changed, 3 insertions(+)
>>
>> diff --git a/include/sdhci.h b/include/sdhci.h index
>> 2372697b743..a962cc93caa 100644
>> --- a/include/sdhci.h
>> +++ b/include/sdhci.h
>> @@ -223,6 +223,9 @@
>>   #define   SDHCI_SPEC_100	0
>>   #define   SDHCI_SPEC_200	1
>>   #define   SDHCI_SPEC_300	2
>> +#define   SDHCI_SPEC_400	3
>> +#define   SDHCI_SPEC_410	4
>> +#define   SDHCI_SPEC_420	5
> 
> Let's add them when there are real users of these macros.
> 
> Thanks,
> Peng.
> 

I am currently working on another patch series related to SDHCI Cadence, 
which will require the use of these newer SDHCI specification version 
macros. Would you prefer that I add these defines as part of that 
upcoming series, instead of as a standalone patch?

I initially thought of submitting these changes separately since they 
affect the SDHCI interface file and could be useful for future SDHCI 
controller support, but I’m happy to include them in the series if 
that’s preferable.

Please let me know your preference.

Thanks,
Tanmay